ML14030A264
Text
{{#Wiki_filter:A wMichael P. GallagherExelon NuclearGenertionVice President. License RenewalExeLon Generation200 Exelon WayKennett Square, PA 19348610 765 5958 Office610 765 5956 Faxwww.exeloncorp.commichaelp.gallagher@exeloncorp.com10 CFR 5010 CFR 5110 CFR 54RS-14-029January 21, 2014U. S. Nuclear Regulatory CommissionAttention: Document Control DeskWashington, DC 20555-0001Braidwood Station, Units 1 and 2Facility Operating License Nos. NPF-72 and NPF-77NRC Docket Nos. 50-456 and 50-457
Subject:
Response to NRC Request for Additional Information, dated December 20, 2013,related to the Byron and Braidwood Stations, Units 1 and 2 License RenewalApplication, Braidwood Station Applicant's Environmental Report
References:
- 1. Exelon Generation Company, LLC letter from Michael P. Gallagher to NRC DocumentControl Desk, "Application for Renewed Operating Licenses", dated May 29, 20132. Letter from Tam Tran (NRC) to Michael P. Gallagher (Exelon), "Requests for AdditionalInformation for the Review of the Braidwood Nuclear Stations License RenewalApplication -Environmental Audit (TAC Nos. MR1 832, MR1 833, MR1 792, andMF1 793)", dated December 20, 2013In the Reference 1 letter, Exelon Generation Company, LLC (Exelon Generation) submitted theLicense Renewal Application (LRA) for the Byron and Braidwood Stations, Units 1 and 2. In theReference 2 letter, the NRC requested additional information to support the Staff's review of theBraidwood Station Applicant's Environmental Report (Appendix E, Item E-2 to the LRA).Enclosure A of this letter provides a cross reference index linking the Staff's questions in theReference 2 letter with the Exelon Generation responses. Enclosure B contains responsesheets that provide information requested by each of the Staff's questions and/or identifysupporting documents and materials. Enclosure C of this letter provides duplicate hard copiesof the response sheets found in Enclosure B coupled with hard copies of any other relevantdocuments and materials identified on the response sheets.
January 21, 2014U.S. Nuclear Regulatory CommissionPage 2Seven hardcopy documents included in Enclosure C were not prepared by Exelon or itscontractors (i.e., they are "Non-Exelon" documents), and Exelon did not control development ofthe documents. Accordingly, while Exelon believes the information in these documents to beaccurate and complete, we cannot make any specific representation as to the accuracy orcompleteness of the documents. The first page of each document and its entry in the index(Enclosure.A) are marked with the designation "Non-Exelon."An information-only copy of this letter and all enclosures are being provided on compact disc tothe NRC License Renewal Environmental Project Manager to facilitate Staff review of theinformation.This letter and its enclosures contain no regulatory commitments.If you have any questions, please contact Mr. Al Fulvio, Manager, Exelon Generation LicenseRenewal, at 610-765-5936.I declare under penalty of perjury that the foregoing is true and correct.Executed on: o/- 2/ %20/9R espet lyMichael P. GallagherVice President -License Renewal ProjectsExelon Generation Company, LLC
Enclosures:
A: Cross Reference IndexB: Hard copies of Response SheetsC: Hard copies of Response Sheets plus other Relevant Documentscc: Regional Administrator -NRC Region III (w/o Enclosures B and C)NRC Project Manager (Environmental Review), NRR-DLR (w/o Enclosures B and C)NRC Project Manager (Safety Review), NRR-DLR (w/o Enclosures B and C)NRC Project Manager, NRR-DORL Braidwood Station (w/o Enclosures B and C)NRC Senior Resident Inspector, Braidwood Station (w/o Enclosures B and C) Exelon GenerationRS-1 4-029Enclosure ACross Reference Index This Page Intentionally Blank RS-1 4-029Enclosure ACross Reference IndexEnclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?Historic and oultural ....______ _, CR-5: Related to Exelon's environmental .review procedures for land-disturbing activities, ....A÷i provide: -(a) A description of how inadvertent historicalor cultural discoveries on the BraidwoodEli1 Nuclear Station (Braidwood) site are CR-5a Response Sheet Exelonconsidered by Exelon staff.El-2 (b) A list of Exelon's environmental procedures CR-5b Response Sheet Exelonand a short description of their purpose.CR-6: Related to the cultural resourcemanagement plan (Section 4.19 of theEnvironmental Report (ER)), provide aEl -3 description of how a proposed activity on the CR-6 Response Sheet ExelonBraidwood site is evaluated for culturalresource impacts by the Chemistry ManagerI (or designee).El -4CR-7: Provide a description of Braidwood'stransmission line management plan, including:timing of activities; danger tree removal andother clearing; inspections and repair activitiesconducted by ground vehicles; standardoperating procedures or guidelines for theapplicant and any contractors; erosion controlprocedures; technician training programs; andany regulations that restrict maintenanceactivities (e.g., looking for activities that couldaffect depth of disturbance, if any disturbanceis necessary along the corridor).CR-7 Response Sheet1. UFSAR, Revision 8, Figure8.2-7, Property PlanExelonCR-8: Provide information on management ofthe land around less-developed areas of theplant site, especially near known historic andcultural resources or near unsurveyed areas.CR-13: Does Exelon conduct cultural resourcetraining at Braidwood? If.so, provide any CR-13 Response Sheet Exelondocumentation of cultural resource trainingrequired for staff.CR-19: Provide the breakdown (inpercentages) of land use (i.e. industrial,agricultural, woodland, etc.) for the Braidwood CR-19 Response Sheet Exelonsite. Include leased land. RS-14-029Enclosure APage 2 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information orNumber ResponseNon-Exelon?CR-20: Provide information regardingmanagement of the land leased by ExelonEl -8 associated with the Braidwood site to public or CR-20 Response Sheet Exelonprivate entities -is Exelon managing this land,or is management left to the lessee withoversight by Exelon?.7. SocioecbndornmicsýSOC-i: Provide updated permanent workforceE1-9 data, preferably a residential distribution of SOC-1 Response Sheet Exelonpermanent workforce by county in table format.SOC-2: Provide updated property taxinformation, similar to the data provided in SOC-2 Response Sheet ExelonEl-10 Tables 2.7-2 and 2.7-3 of the ER. Include datafor the years 2011 and 2012, if available.SOC-3: Braidwood's last settlementagreement was signed on March 12, 2008 andcovered tax years 2007 through 2011. What isthe status of the settlement agreement forEl-11 current and future years? Has Exelon SOC-3 Response Sheet ExelonGeneration entered into a new settlementagreement with Will County and other taxingdistricts to set the equalized assessed value(EAV) of Braidwood for tax years 2012 andbeyond? Provide any relevant information.SOC-4: In accordance with the 2008settlement agreement, Exelon agreed to makepayments in addition to taxes (PIATs) tospecific tax recipients. Under the agreement,Exelon made PIAT payments of $37,711,150for tax year 2007 (paid in 2008) andEl-12 $3,643,566 for tax year 2008 (paid in 2009). SOC-4 Response Sheet ExelonHave there, or will there be, additional PIATsin the future? Were PIATs paid in 2010 and2011 for tax years 2009 and 2010? If so, havethere been any changes to the list of recipientsor proportion of payments in ER Table 2.7-1?Provide any relevant information. RS-14-029Enclosure APage 3 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information orNumber Response Non-Exelon?SOC-5: Exelon pays annual property taxes toa number of taxing entities within, andincluding, Will County. The Will CountyTreasurer collects Braidwood's property taxpayment and disperses it to the various taxingentities to partially fund their respectiveoperating budgets. Please provide additionalinformation about tax payments to Will County(after tax triggers and excluding PIATpayments) and the portion of the county taxmonies allocated to "the forest preserve, SOC-5 Response SheetEl-13 township and forest districts, school districts, 1. Sample Braidwood Property Exelonfire protection districts, park districts, library 1am B rondistricts, and the county's cities and villages." Tax BillPlease provide a brief explanation of howthese payments are allocated. Please providea table showing the amount of distribution (orpercentage) of the Braidwood property taxpayment and each recipient's total revenue (orpercent of total revenue). Note, the staff isseeking information to know how dependentsome of these recipients may be on therevenue received from the Braidwood propertytax payment via Will County.SOC-6: In addition to property tax paymentsand PIAT information presented in Section 2.7of the ER, describe any other major annual SOC-6 Response Sheeti.support payments, one-time payments, and SOC-6 Table, 2012 BraidwoodEl-14 other forms of non-tax compensation (if any) Site Fund Charitable Exelonprovided to local organizations, communities, Expendituresand jurisdictions (e.g., county, municipality,townships, villages, incorporated places, andschool districts) by Exelon.SOC-7: Provide information about anyanticipated changes in state and local tax laws,rates, and assessed property value or anyEl-15 other recent or anticipated tax payment SOC-7 Response Sheet Exelonadjustments that could result in notable futureincreases or decreases in property taxes orother payments._Environmental Justice ...._._EJ-1: Provide summaries of telephone EJ-1 Response Sheetinterviews conducted by Exelon regarding local 1. Compilation of Telephonesubsistence consumption behavior patterns. Logs. Investigating PotentialEl-16 These interviews were located in Supplemental Existence of Subsistence-Like ExelonReport, Volume II, Table 1, during the Populations in Will County,environmental audit. Grundy, and Kankakeecounties, Illinois. July 24, 2013 RS-14-029Enclosure APage 4 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?EJ-2: Provide information about current orpast wildlife sampling and testing of gameanimals such as deer, squirrel, turkey,pheasant, duck, fish and other game birds andanimals that may have been conducted in thevicinity of Braidwood. Wildlife sampling andE1-17 testing may have been conducted before, EJ-2 Response Sheet Exelonduring, and after plant construction and in theearly days of plant operation, but wasdiscontinued after determining that tissuesamples consistently showed no significant ormeasurable radiological impact on theenvironment from plant operations.ST~rr~eiti~alfrA rices ____El-18 TE-1: Provide the following references: TE-1 Response Sheet Exelon1. Terrestrial Ecology(a) (CoinEd 1973a) Commonwealth Edison Sections from CoinEd 1973a.E1-19 Company. 1973. Braidwood Station Commonwealth Edison ExelonEnvironmental Report -Volume I. July 1973 Company. 1973. Braidwood(Terrestrial Ecology sections only). Station Environmental Report -Volume I. July 1973.2. Terrestrial Ecology(b) (ComEd 1973b) Commonwealth Edison Sections from ComEd 1973b.E1-20 Company. 1973. Braidwood Station Commonwealth Edison ExelonEnvironmental Report -Volume I1. July 1973 Company. 1973. Braidwood(Terrestrial Ecology sections only). Station Environmental ReportVolume I1. July 1973.3. (ComEd 1985)Commonwealth Edison(c) (ComEd 1985) Commonwealth Edison Company. 1985. BraidwoodCompany. 1985. Braidwood Station Units 1 Station Units 1 and 2,E1-21 and 2, Environmental Report -Operating Environmental Report -ExelonLicense Stage. NRC Docket Nos. 50-456 and Operating License Stage. NRC457, Amendment 7. June 10, 1985 (Terrestrial Docket Nos. 50-456 and 457,Ecology sections only). Amendment 7. June 10, 1985(Terrestrial Ecology sectionsonly).TE-3: Provide the following information:1. The May 31, 2013, Wildlifeat Work recertification(a) The May 31, 2013, Wildlife at Work atpWorktrecertificationrecertification application and enclosed Wildlife application and enclosedManagement Plan that was discussed with the Wildlife Management Plan thatEl -22 nagem e w Plan t sitescudit in was discussed with the NRC ExelonNRC staff for review during the site audit in staff for review during the siteresponse to TE-3 (Environmental Report, audit in response to TE-3Section 2.4, Page 2- 30, paragraph 4). (Environmental Report, Section2.4, Page 2- 30, paragraph 4). RS-14-029Enclosure APage 5 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?2. The October 18, 2013, letter(b) The October 18, 2013, letter from Margaret from Margaret O'Gorman, 'O'Gorman, Wildlife Habitat Council, to Brittney Brittney OConner, Exelon, thatEl-23 O'Conner, Exelon, that was discussed with the was discussed with the NRC Non-NRC staff for review during the site audit in staff for review during the site Exelonresponse to TE-3 (Environmental Report, audit in response to TE-3Section 2.4, Page 2 -30, paragraph 4). (Environmental Report, Section2.4, Page 2 -30, paragraph 4).(c) During the site audit, Exelon staff indicatedthat Exelon intends to continue to maintain itsE1-24 Wildlife at Work Certification throughout the TE-3 Response Sheet Exelonproposed license renewal term. Please confirmthat this statement is true.Land Use -LU-i: The June 20, 2013, final rule thatamended 10 CFR Part 51 revised the scope ofthe transmission line review for license renewalto be those "transmission lines that connectthe nuclear power plant to the substationwhere electricity is fed into the regional power LU-1 Response Sheet Exelondistribution system and transmission lines thatsupply power to the nuclear plant from the grid"(see 10 CFR 51, Appendix B to Subpart A,Table B-i, Footnote 4). Please provide thefollowing information:(a) Identify the name and location of thesubstation that connects Braidwood to the LU-1 Response Sheet Exelonregional grid.(b) Clarify which portions of the transmission LU-i Response SheetEl1-25 lines described in Section 3.1.6 of the ER are 1 Braidwood Station UFSAR Exelonin scope for the license renewal review Figure 8.2-7, Property Planaccording to the revised definition.(c) Confirm that the following statementregarding transmission lines that supply powerto Braidwood remains true under the revisedtransmission line scope (ER Section 3.1.6, LU-1 Response Sheet ExelonPage 3-14, Paragraph 2): "No separatetransmission lines exist for the purpose ofsupplying power to Braidwood from the grid(off-site power)."LU-2: Does Exelon intend to perform anyEll -26 construction or land-disturbing activities during LU-2 Response Sheet Exelonthe proposed license renewal period thatwould be unrelated to refurbishment activities? RS-14-029Enclosure APage 6 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?_________ ~~quatic Ecology~W_____________El -27 AQ-2: Provide the following reference: AQ-2 Response Sheet Exelon1. HDR Engineering, Inc.HDR Engineering, Inc. (HDR). 2008. (HDR). 2008. Investigations toHDR Determine Presence of State-Investigations to Determine Presence of State- Lited Pees of ShandEl-28 Listed Species of Fish and Freshwater Listed Species of Fish andMussels in the Kankakee River near the Kankakee River n theBraidwood Nuclear Station Warm-water Braiwo Nuclear taiDischarge Channel. October 2008. Braidwood Nuclear StationWarm-water DischargeChannel. October 2008.El -29 AQ-3: Provide the following references: AQ-3 Response Sheet Exelon1. Authorization for IncidentalTake and ImplementingAgreement regardingE1-30 (a) Exelon's Incidental Take Permit regarding construction at Braidwood Exelonconstruction of the new discharge structure. Station of a new outfall andmultiport diffuser impacting theKankakee River in Will County,Illinois. December 17, 2009.El-31(b) Exelon Nuclear (Exelon). 2010. FinalReport: Unionid Relocation near theBraidwood Nuclear Station Kankakee RiverDischarge Location. September 2010.2. Exelon Nuclear (Exelon).2010. Final Report: UnionidRelocation near the BraidwoodNuclear Station KankakeeRiver Discharge Location.September 2010.ExelonIAQ-4: Section 3.1.3 of the ER describes grills,trash rakes, and traveling screens within thelake screen house and the river screen house.rProvide the following information:.4 4(a) Describe the mesh size of travelingscreens at the lake screen house.AQ-4 Response SheetExelon(b) Describe the through-screen velocity at the AQ-4 Response Sheet Exelontraveling screens at the lake screen house.(c) Clarify whether the intake houses includeany fish return structures. If fish returnstructures occur, discuss estimates of survival AQ-4 Response Sheet Exelonrates for fish that go through the returnstructure.(d) Describe the cleaning and maintenanceprocedures at the river screen house anddischarge structure, including the frequency of AQ-4 Response Sheet Exelondredging, physical cleaning, and othermaintenance procedures. RS-14-029Enclosure APage 7 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?Provide the following references:1. AQ e) Exelon Generation(Exelon). 2009. Letter from(e) Exelon Generation (Exelon). 2009. Letter Exelon Generation (L. Coyle) tofrom Exelon Generation (L. Coyle) to U.S. U.S. Army Corps of EngineersArmy Corps of Engineers (K. Bliss) regarding (K. Bliss) regarding RegionalE1-33 Regional Permit #8 Utility Line Application to Permit #8 Utility Line ExelonDredge the River Inlet to the Intake Forebay of Application to Dredge the Riverthe Braidwood Generating Station's River Inlet to the Intake Forebay ofScreen House on the Kankakee River. the Braidwood GeneratingFebruary 3, 2009. Station's River Screen Houseon the Kankakee River.February 3, 2009.2. AQ f) U.S. Army Corps of(f) U.S. Army Corps of Engineers (ACOE). Engineers (ACOE). 2009.2009. Letter from U.S. Army Corps of Letter from U.S. Army Corps ofEngineers (K. Wozniak) to Exelon Corporation Engineers (K. Wozniak) to Non-El -34 Braidwood Nuclear Generating System (L. Exelon Corporation Braidwood ExelonCoyle) regarding authorization to proceed with Nuclear Generating System (L.proposed dredging. June 11, 2009. Coyle) regarding authorizationto proceed with proposeddredging. June 11, 2009.3. AQ g) Summary of ExelonEl-35 (g) Exelon Generation Procedure CR-BR-120-. Generation Procedure CR-BR- Exelon4130, Braidwood Lake Microbiological [sic-- 120-4130, Braidwood Lakeshould be "Macrobiological"]Strategic Plan. Microbiological Strategic Plan4. AQ h) CW-2, Circulating(h) CW-2, Circulating Water Training Figure Water Training Figure 39-3,El-36 39-3, Lake Screen House Sectional (June 13, Lake Screen House Sectional Exelon2013, Rev. 1). (June 13, 2013, Rev. 1).AQ-6: Exelon has conducted biologicalmonitoring in the Kankakee River for over 20 AQ-6 Response Sheet5. HDRyears. Please provide tables that describe the Engineering, Inc. (HDR). 2014.E1-37 number of fish caught by species at each Braidwood Station Kankakee Exelonmonitoring location and by sampling gear for River Fish Monitoring Program,each year that monitoring has occurred. For 1991-2013 Tables Requested2012 monitoring information, provide Tables 3- by the NRC. January 2014.3 and 3-4 from the HDR Engineering report. IAdditionally, provide the following references:1. EA Science and Technology(a) EA Science and Technology (EA). 1990. (EA). 1990. Results ofEl -38 Results of entrainment and impingement entrainment and impingement Exelonstudies conducted at the Braidwood Nuclear studies conducted at theStation and the adjacent Kankakee River. Braidwood Nuclear Station andthe adjacent Kankakee River. RS-14-029Enclosure APage 8 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber R oNon-Exelon?2. EA Science and Technology(b) EA Science and Technology (EA). 1991. (EA). 1991. Results of a threeE1-39 Results of a three month impingement study at month impingement study at Exelonthe Braidwood Nuclear Station, April through the Braidwood Nuclear Station,June 1991. April through June 1991. July1991.3. Larimore RW, Peterson JT.(c) Larimore RW, Peterson JT. 1989. 1989. Kankakee River FishesKankakee River Fishes of the Braidwood of the Braidwood StationEl -40 Station Aquatic Monitoring Area, August 1988. Aquatic Monitoring Area, ExelonIllinois Natural History Survey Aquatic Biology August 1988. Illinois NaturalTechnical Report. January 1989. History Survey Aquatic BiologyTechnical Report. January1989.4. HDR Engineering, Inc.(d) HDR Engineering, Inc. (HDR). 2013. (HDR). 2013. BraidwoodEl -41 Braidwood Station Kankakee River Fish Station Kankakee River Fish ExelonMonitoring Program, 2012. Monitoring Program, 2012.February 2013.E1-42 AQ-10: Provide the following references AQ-10 Response Sheet Exelon1. Commonwealth Edison(a) Commonwealth Edison Company. 1973. Company. 1973. BraidwoodEl 43 Braidwood Station Environmental Report -Station Environmental Report- ExelonVolume II. Aquatic Ecology Sections. July Volume II. Aquatic Ecology1973. Sections. July 1973.(b) Larimore, R.W. 1989. Kankakee RiverFishes of the Braidwood Station AquaticE1-42 Monitoring Area, August 1989 [sic -should be AQ-10 Response Sheet Exelon1988]. Illinois Natural History Survey AquaticBiology Technical Report 89/1. January 1989.3. EA Engineering, Science,(c) EA Engineering, Science, and Technology and Technology (EA). 2012.El -44 (EA). 2012. Braidwood Station 2011 Benthos Braidwood Station 2011 ExelonMonitoring and Historical Fish and Benthos Benthos Monitoring andComparisons. July 2012. Historical Fish and BenthosComparisons. July 2012.4. Exelon Nuclear (Exelon).(d) Exelon Nuclear (Exelon). 2009. Standard 2009. Standard OperatingOperating Procedures for Braidwood Station's Procedures for BraidwoodEI-45 Fisheries Monitoring Program in the Kankakee Station's Fisheries Monitoring ExelonRiver and Horse Creek. July 2009. Program in the Kankakee RiverI_ I and Horse Creek. July 2009. RS-14-029Enclosure APage 9 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?5. Exelon Nuclear (Exelon).(e) Exelon Nuclear (Exelon). 2009. Final 2009. Final Report:Report: Characterization of Unionid Characterization of UnionidE1-46 Communities near the Braidwood Nuclear Communities near the ExelonStation Kankakee River Discharge Location. Braidwood Nuclear StationJanuary 2009. Kankakee River DischargeLocation. January 20096. Exelon Nuclear (Exelon).(f) Exelon Nuclear (Exelon). 2009. Application 2009. Application for anfor an Incidental Take Permit for Threatened or Incidental Take Permit forEndangered Species and Conservation Plan. Threatened or EndangeredMay 11, 2009. Species and ConservationPlan. May 11, 2009.1. Baidood7. Exelon Nuclear (Exelon).(g) Exelon Nuclear (Exelon). 2011. Braidwood StationEeEl1-48 Station Kankakee River Fish Monitoring Kankakee River Fish ExelonProgram, 2010. Monitoring Program, 2010.(h) (Exelon Nuclear 2011 b) Exelon Nuclear.E1-42 2011. Braidwood Station Kankakee River Fish AQ-10 Response Sheet ExelonMonitoring Program, 2010.9. Illinois Department of Natural(i) Illinois Department of Natural Resources Resources (IDNR). 2008.(IDNR). 2008. Status of Fish Communities and Status of Fish CommunitiesEl -49 Sport Fishery in the Kankakee River and and Sport Fishery in the ExelonTributary Streams: 2005 Basin Survey. Kankakee River and TributaryFisheries Region II, Streams Program. April Streams: 2005 Basin Survey.2008. Fisheries Region II, StreamsProgram. April 2008.10. Illinois Department ofResorces Natural Resources (IDNR).(j) Illinois Department of Natural Resources Permi No NE02(IDNR). 2000. Permit No NE2000125 -proposed operation andEl-5O proposed operation and maintenance of the maintenance of the Braidwood ExelonBraidwood Nuclear Station cooling pond dam, Narntan oling odWill County. Office of Water Resources. Nuclear Station cooling pondDeceber20, 000dam, Will County. Office ofDecember 20, 2000 Water Resources. December20, 2000.GroundwaterGW-4: Discuss what impact on groundwaterflow, either recharge to or discharge from, the GW-4 Response Sheet Exeloncooling pond has on aquifers around the sides 1. Attachment No. 1of the pond. RS-14-029Enclosure APage 10 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?E1-52 GW-7: Provide the following references: GW-7 Response Sheet Exelon1. (Exelon Generation 2011)(a) (Exelon Generation 2011) Exelon Exelon Generation Company,Generation Company, LLC. 2011. LLC. 2011. HydrogeologicEl -53 Hydrogeologic Investigation Report -Fleetwide Investigation Report- Fleetwide ExelonAssessment -Braidwood Generating Station, Assessment- BraidwoodBraceville, IL, Revision 1. Braceville, IL. Generating Station, Braceville,December 2011. IL, Revision 1. Braceville, IL.December 2011.2. (IEPA 2013a) Illinois(b) (IEPA 2013a) Illinois Environmental Environmental ProtectionProtection Agency. 2013. Re: Exelon Agency. 2013. Re: ExelonEl-54 Braidwood Station NPDES Permit Number Braidwood Station NPDES Non-IL0048321 VB 1 Completion Report. Letter to Permit Number IL0048321 VB ExelonJ. B. Fewell, and M. E. Kanavos. March 28, 1 Completion Report. Letter to2013. J. B. Fewell, and M. E.Kanavos. March 28, 2013.3. (IEPA 2013b) IllinoisEnvironmental Protection(c) (IEPA 2013b) Illinois Environmental E ncy. 203 te:EeonProtection Agency. 2013. Re: Exelon Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number Prmit Number NL082 Non-IL0048321 VB 2/3 and Pond Area Completion 2/3 Nd Pond Ae ExelonReport. Letter to J. B. Fewell, and M. E. 2/3 and Pond Area CompletionKanaos. arch28, 013.Report. Letter to J. B. Fewell,Kanavos. March 28, 2013. and M. E. Kanavos. March 28,2013.4. (IEPA 2013c) Illinois(d) (IEPA 2013c) Illinois Environmental Environmental ProtectionProtection Agency. 2013. Re: Exelon Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number Braidwood Station NPDES Non-IL0048321 VB 4 Completion Report. Letter to Permit Number IL0048321 VB ExelonJ. B. Fewell, and M. E. Kanavos. March 28, 4 Completion Report. Letter to2013. J. B. Fewell, and M. E.Kanavos. March 28, 2013.5. Letter to I EPA, "Final Plan(e) Letter to IEPA, "Final Plan Completion Completion Report for the VB-El -57 Report for the VB-1, VB-2/3, and Pond, and 1, VB-2/3, and Pond, and VB-4 ExelonVb-4 Areas", dated January 16, 2013. Areas", dated January 16,2013.(f) P6. Plan Completion Report forEl Plan Completion Report for the VB-i Area, the VB-1 Area, BraidwoodE1-58 Braidwood Generation Station, Braceville, Generation Station, Braceville, ExelonIllinois, October 2012. Illinois, October 2012.7. Plan Completion Report for(g) Plan Completion Report for the VB-2/3 and the VB-2/3 and Pond Area,El -59 Pond Area, Braidwood Generation Station, Braidwood Generation Station, ExelonBraceville, Illinois, December 2012. Braceville, Illinois, December2012. RS-14-029Enclosure APage 11 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?(h) Plan Completion Report for the VB-4 Area, 8. Plan Completion Report forEl-60 Braidwood Generation Station, Braceville, the VB-4 Area, Braidwood ExelonIllinois, October 2011. Generation Station, Braceville,Illinois, October 2011.9. Plan Completion Report for(i) Plan Completion Report for the VB-6 Area, the VB-6 Area, BraidwoodE1-61 Braidwood Generation Station, Braceville, Generation Station, Braceville, ExelonIllinois, August 2009. Illinois, August 2009.10. Plan Completion Report for(j) Plan Completion Report for the VB-7 Area, the VB-7 Area, BraidwoodEl-62 Braidwood Generation Station, Braceville, Generation Station, Braceville, ExelonIllinois, Februaryi 2010. Illinois, February 2010.SW-1 Response Sheet1. IllinoisDepartment of TransportationDivision of Water Resources,1977. Letter to U.S.Department of the Army,E1-63 District Engineer regarding Non-Issuance of a permit to Exelonconstruct the screen house andSW-I: Provide the agreement with the Illinois blowdown structure for aEnvironmental Protection Agency (IEPA) Commonwealth Edison plant onlimiting Braidwood's consumptive use of the Kankakee River. April 7,surface water. 1977.2. Illinois Department ofTransportation Division ofWater Resources, 1977. PermitNo. 15039 to construct a river Exelonscreen house and blowdownoutlet on the Kankakee Riverfor the Braidwood Station. April29, 1977.SW-2 Response Sheet1. Exelon Nuclear 2006.El -64 SW-2: Provide the reference, "Braidwood Braidwood Station #20, NPDES ExelonStorm Water Pollution Prevention Plan." Permit No. 1L0048321, StormWater Pollution PreventionPlan, Revision 5, July 2006SW-3 Response SheetSW-3: Provide a status summary of issuance 1. Draft Reissued NPDESof Braidwood's National Pollutant Discharge Permit No. IL0048321 for Non-Elimination System (NPDES) permit that Exelon Generation Company Exelonexpired September 1, 2000. Braidwood Nuclear PowerStation, June 27, 2013 RS-14-029Enclosure APage 12 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information orNumber Response Non-Exelon?SW-4: Provide a large-scale map or maps SW-4 Response SheetE1-66 depicting NPDES outfall locations. 1. Map of NPDES Outfall ExelonLocations.SW-5: As discussed with applicant's staffduring the site audit, please provide asummary of available historical and currentEl -67 water quality data for the cooling pond SW-5 Response Sheet Exelon(including temperature), include averageambient values and maximum observed valuesand date of occurrence, if available. Provide adata set that covers the last 10 years.SW-6 Response Sheet1.Surface Water andGroundwater WithdrawalRecordsa. Annual Illinois WaterInventory -Exelon BraidwoodStation, 2008b. Annual IllinoisWater Inventory -ExelonEl -68 Braidwood Station, 2009c. ExelonAnnual Illinois Water Inventory-Exelon Braidwood Station,2010d. Annual Illinois WaterSW-6: Provide all non-radiological monitoring Inventory -Exelon Braidwoodreports from the last 5 years, including NPDES Station, 201 le. Annual IllinoisDischarge Monitoring Reports and surface Water Inventory -Exelonwater withdrawal records/reports. Braidwood Station, 20122. NPDES DischargeMonitoring Reportsa. Monthly NPDES DischargeMonitoring Reports 2008b. Monthly NPDES DischargeMonitoring Reports 2009c. Monthly NPDES DischargeE1-69 Monitoring Reports 2010 Exelond. Monthly NPDES DischargeMonitoring Reports 2011e. Monthly NPDES DischargeMonitoring Reports 2012f. Monthly NPDES DischargeMonitoring Reports 2013(January- May) RS-14-029Enclosure APage 13 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?SW-7: Provide copies of any Notices ofViolation (NOVs), nonconformance SW-7 Response Sheetnotifications, or related infractions received 1. Illinois Environmentalfrom regulatory agencies associated with Protection Agency, 2012.NPDES permitted discharges, sanitary sewage Provisional Variance FromEl -70 systems, groundwater or soil contamination, Special Condition 3B of NPDES Exelonincluding spills, leaks, and other inadvertent Permit IL0048321, IEPA -12-releases of fuel solvents, chemicals, orradionuclides (covering the past 5 years). 12 (Provisional Variance-Include correspondence of self-reported Water). March 22, 2012.violations to responsible agencies.SW-8: In light of excessive cooling pondtemperatures experienced during July 2012,provide a discussion and any relevantinformation as to whether a warming trend hasbeen observed in the cooling pond during theperiod of plant operations. Provide anyEl -71 study(s) or data that support the conclusions SW-8 Response Sheet Exelonreached (e.g., mean annual, seasonal, and/ormonthly water temperature trend for the periodof record). Also, describe any measures thatExelon has taken or plans to take to mitigatethe impact of high cooling pond temperatureson plant operations.SW-9 Response Sheet1. Joint Application Form forSW-9: Provide the application for Clean Water Clean Water Act Section 401Act Section 401 Certification referenced in Certification related to RenewalE1-72 Exelon's letter to the I EPA dated May 18, of U.S. Nuclear Regulatory Exelon2012. Commission OperatingLicenses NPR-72 and NPF-77for Braidwood Station Units 1 &2, May 18, 2012.SW-13: As observed and discussed withExelon staff during the site audit, provide abrief description of the plant water treatmentupgrades being implemented at the lakescreen house and how they relate toBraidwood's Lake Chemistry Strategic Plan.El -73 Specifically, address whether and how the SW-13 Response Sheet Exelonquality of water in the cooling pond would bemodified as a result of the upgrades. Identifythe approximate start date(s) of theconstruction and when the project(s) isscheduled for completion and commissioningI to support plant operations. RS-14-029Enclosure APage 14 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?________ MeeoroogyA~rQuA1ity and'-Nos,MET-1: Provide the copy of the BraidwoodStation Units 1 and 2 (Braidwood) Federally MET-i Response SheetEnforceable State Operating Permit for 1.T-1desponse SheeEl-74 stationary emission sources provided at the Operating Permit, ID No. Exelonsite audit. Indicate whether correspondence Operatin permit, DNoxomore recent than October 29, 2007, is 197816AB, Expiration Date:available regarding the status of this permit, April 29, 2007and include as applicable.MET-2 Response Sheet1. 2012Annual Emission Report forBraidwood GeneratingStation2. 2011 AnnualEmission Report for BraidwoodGenerating Station3. 2010E1-75 MET -2: Provide copies of Braidwood's annual Annual Emission Report for Exelonemission reports for the most recent 5 years. Braidwood GeneratingStation4. 2009 AnnualEmission Report for BraidwoodGenerating Station5. 2008Annual Emission Report forBraidwood Generating StationMET-3: Identify combustion sources ofEl-76 hazardous air pollutants (HAPs) at Braidwood MET-3 Response Sheet Exelonand amount released for the most recent 5years.MET-4: Provide details of Braidwood'sstationary emission sources including, asEl -77 applicable, operating hours per year (last 5 MET-4 Response Sheet Exelonyears), fuel consumption and rate, horsepowerratings, and capacity.MET-6: Are there expectedupgrade/replacement activities forEl -78 equipment/operation that could increase or MET-6 Response Sheet Exelondecrease air emissions over the licenserenewal period (period of extended operation)?MET-7: Provide the information provided at thesite audit addressing site-wide emissioninventory data (annual) for greenhouse gasesE1-79 (GHG) for the most recent 5 years. Also, MET-7 Response Sheet Exeloninclude available information on emissionsfrom mobile sources (commuters,visitors,delivery vehicles, etc.) RS-14-029Enclosure APage 15 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?MET-8 Response Sheet 1.Loop Schematic DiagramMET -8: Provide a description of the primary Meteorological Monitoringmeteorological tower. Also, describe the Tower Instruments -"EM"backup meteorological tower if one is present. System (Computer & AnalogInclude a description of instrumentation Inputs). Drawing 20E El -80 installed and height of installation for each 4031 EMO12. Monthly Report on Exeloninstrument. Describe any changes in land use the Meteorological Monitoringaround the tower sites that have occurred Program at the Braidwoodsince installation that may affect any Nuclear Generating Station,meteorological sensor performance. March 2012. Prepared forExelon Nuclear by Murray andTrettel, Inc. May 10, 2012MET-9: Provide the following meteorological ..information from the data recorded atBraidwood's meteorological facility. The¶ meteorological data should include the most..recent 5 years for which the data are available:.(a) mean monthly and annual temperatures MET-9 Response Sheet ExelonEl -81 (b) mean monthly precipitation and annual MET-9 Response Sheet Exelonprecipitation(c) Provide seasonal and annual summarywind statistics in the form of wind direction andspeed frequency distribution tables and windroses. Discuss predominant wind direction and MET-9 Response Sheet Exelonspeed by season and annual average, localterrain features affecting wind direction andspeed, and provide a value for annual average1 wind speed.' RS-14-029Enclosure APage 16 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?E1-82(d) Provide seasonal stability class statisticsdetermined from the Braidwood meteorologicaltower in tabular form for the last 5 years.MET-9 Response Sheet1. Annual Report on theMeteorological MonitoringProgram at the BraidwoodNuclear Power Station, 2008.Prepared for Exelon Nuclear byMurray and Trettel, Inc. April18, 20092. Annual Report on theMeteorological MonitoringProgram at the BraidwoodNuclear Power Station, 2009.Prepared for Exelon Nuclear byMurray and Trettel, Inc. March31, 20103. Annual Report on theMeteorological MonitoringProgram at the BraidwoodNuclear Power Station, 2010.Prepared for Exelon Nuclear byMurray and Trettel, Inc. April24,20114. Annual Report on theMeteorological MonitoringProgram at the Byron NuclearPower Station, 2011. Preparedfor Exelon Nuclear by Murrayand Trettel, Inc. August 08,20125. Annual Report on theMeteorological MonitoringProgram at the Byron NuclearPower Station, 2012. Preparedfor Exelon Nuclear by Murrayand Trettel, Inc. April 25, 2013ExelonMET-10: Provide the information provided at______________ the site audit addressing: .... ____,_________ _____(a) Has an atmospheric warming trend beenobserved in the vicinity of Braidwood during MET-10a Response Sheetthe period of plant operations? Provide data to 1. Braidwood Stationsupport the conclusions reached (e.g., mean Meteorological Tower -El -83 daily maximum annual temperatures, mean Average Monthly Exelondaily minimum annual temperatures, or mean Temperatures, 30' Elevation.annual temperature for the available period of November 1973 throughrecord from Braidwood's meteorological November 2013.station). II RS-1 4-029Enclosure APage 17 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?(b) Has a river warming trend been observed in MET-10b Response Sheeti.the Kankakee River during the period of plant TABLE MET-10b: BraidwoodEl -84 operations? Provide any study(s) or data that Station -Average Monthly Exelonsupport the conclusions reached (e.g., mean Kankakee River Water Intakeannual, seasonal, and/or monthly water Temperatures (OF), 2002 totemperature trend for the period of record). 2008 and 2011 to 2013MET-12 Response SheetMET-12: Provide information about any noise 1. Staff Interview Form, NewEl -85 complaints for the most recent 5 years and Significant Information Exelonresulting from plant operation. Identification Process, Issue 58.Noise.MET-1 5: Identify nearby noise-sensitiveEl -86 receptors (e.g., residences, school, nursing MET-15 Response Sheet Exelonhome, childcare facility) and distance to thosereceptors.Alternatives ,ALT-1 Response Sheet1. Tetra Tech 2012d; AirAL T-1: Provide a copy of the calculation Emissions and Solid Wastepackages referenced in Section 7 of the ERas from Coal- and Gas-FiredTetra Tech 2012d, Air Emissions and Solid Alternatives for BraidwoodWaste from Coal- and Gas-Fired Alternatives Units 1 and 3; Chapter 7for Braidwood Units 1 and 3; Chapter 7 Energy Energy Alternatives CalculationEl-87 Alternatives Calculation Package, September Package, September 19, 201219, 2012; and Tetra Tech 2012e, Employment Tetra Landand Land Requirements for Alternatives to Employment and LandByron Units 1 and 2 and Braidwood Units 1 Requirements for Alternativesand 2, LR Chapter 7 Energy Alternatives to Byron Units 1 and 2 andCalculation PaLRcapte, 7SEner ernatives12. Braidwood Units 1 and 2, LRCalculation Package, September 18, 2012. Chapter 7 Energy AlternativesCalculation Package,September 18, 2012.... ____ _, , ; Refurblslhme~nt __, __ ,____,E1-88R-l: Clarify the factors influencing whether Unit2 steam generator replacement would occurand whether this hypothetical activity shouldbe considered refurbishment. Also brieflydescribe contributing factors discussed duringthe audit (i.e., water chemistry program andimproved design features of Unit 2 steamgenerator).R-1 Response SheetExelonR-2: In support of NRC's analysis of theimpacts of Unit 2 steam generatorreplacement, clarify:* ~(a) How many temporary or permanentbuildings will be constructed to support steam R-2 Response Sheet Exelongenerator replacement activities? RS-14-029Enclosure APage 18 of 18Enclosure C Documents Provided in ExelonFolder Request for Additional Information Response orNumber Non-Exelon?(b) What is the estimated footprint (ft) of new R-2 Response SheetEl -89 buildings to be constructed? What is the 1. ComEd Drawing S-2000, Old Exelonestimated depth of excavation? Steam Generator StorageI t d Facility Exelon GenerationRS-1 4-029Enclosure BResponse Sheets for NRC Requestsfor Additional InformationBraidwood Station License RenewalEnvironmental Review RS-14-029Enclosure BTOC 1 of 2ContentsQuestion #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:CR-5a ................................................................................................ 1CR-5b ................................................................................................ 2CR-6 .................................................................................................. 3CR-7 .................................................................................................. 4CR-8 .................................................................................................. 6CR-13 ................................................................................................ 7CR-19 ................................................................................................ 8CR-20 ................................................................................................ 9SOC-1 .............................................................................................. 10SOC-2 .............................................................................................. 11SOC-3 .............................................................................................. 12SOC-4 .............................................................................................. 13SOC-5 .............................................................................................. 14SOC-6 .............................................................................................. 17SOC-7 .............................................................................................. 18EJ-1 ................................................................................................. 19EJ-2 .................................................................................................. 20TE-1 .................................................................................................. 22TE-3 ................................................................................................ 23LU-1 .................................................................................................. 25LU-2 ................................................................................................ 27AQ-2 ................................................................................................ 28AQ-3 ................................................................................................ 29AQ-4 ................................................................................................ 30AQ-6 ................................................................................................ 33AQ-10 .............................................................................................. 35GW -4 ................................................................................................ 37GW -7 ................................................................................................ 38SW -1 ................................................................................................ 40SW -2 ................................................................................................ 41SW -3 ................................................................................................ 42SW -4 ................................................................................................ 43SW -5 ................................................................................................ 44SW -6 ................................................................................................ 46 RS-14-029Enclosure BTOC 2 of 2Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:Question #:SW -7 ................................................................................................ 47SW -8 ................................................................................................ 49SW -9 ................................................................................................ 50MET-1 ............................................................................................. 52MET-2 .............................................................................................. 53MET-3 .............................................................................................. 54MET-4 .............................................................................................. 56MET-6 .............................................................................................. 57MET-7 .............................................................................................. 58MET-8 .............................................................................................. 61MET-9 .............................................................................................. 63MET-b10a ......................................................................................... 68MET-10b ......................................................................................... 69MET-12 ............................................................................................ 71MET-15 ............................................................................................ 72ALT-1 ................................................................................................ 73R-i ............................................................. 74R-2 .................................................................................................. 76 RS-14-029Enclosure BPage 1 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-5a Category: Cultural ResourcesStatement of Question:Related to Exelon's environmental review procedures for land-disturbing activities,please provide:(a) A description of how inadvertent historical or cultural discoveries on theBraidwood Nuclear Station (Braidwood) site are considered by Exelon staff.Response:If cultural, historic or paleontological resources are uncovered during an ongoingexcavation at the Braidwood Station, the work would be stopped, appropriatenotifications would be made, a cover would be positioned to protect the exposedresources from the elements, access to the area would be controlled with barriers and/orsigns, and work would not resume until authorized by Environmental personnel. Also,Environmental personnel would coordinate the salvage or disposition of any recoveredresources.List Attachments Provided:None. RS-14-029Enclosure BPage 2 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-5b Category: Cultural ResourcesStatement of Question:Related to Exelon's environmental review procedures for land-disturbing activities,please provide:(b) A list of Exelon's environmental procedures and a short description of their purpose.Response:A short description of each Exelon Generation procedure pertinent to land-disturbingactivities is provided below.1. EN-AA-103, Environmental ReviewThis procedure provides a process for screening proposed activities to determineif an activity requires further evaluation for environmental impacts and risk.Activities to be screened include, but are not limited to:, Engineering Configuration Changes* Initiatives* Maintenance Activities* Operational Changes* Procedure /T&RM Changes* Other Site / Non-Generating Facility Activities.Activities are reviewed against a list of activities known to require furtherevaluation for environmental impacts and risk. If an activity is on the list, furtherevaluation is initiated.2. EN-AA-103-0001, Environmental EvaluationsThis procedure provides guidance on performing further environmentalevaluations to identify the environmental and regulatory impacts (includingimpacts on known or potential cultural and historical resources), if any, ofproposed activities. If an environmental evaluation concludes thatimplementation of a proposed activity would result in an unacceptableenvironmental condition or risk, then the proposed activity will not beimplemented until the environmental impact(s) is / are addressed.4. SA-AA-1 17, Excavation, Trenchin., and ShorinqThis procedure provides instructions on safe work practices for excavating,trenching, and shoring, including instructions on actions to be taken if cultural,historic, or paleontological resources are uncovered during an activity involvingexcavation or trenching.List Attachments Provided:None RS-14-029Enclosure BPage 3 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-6Category:Cultural ResourcesStatement of Question:Related to the cultural resource management plan (Section 4.19 of the Environmental Report(ER)), provide a description of how a proposed activity on the Braidwood site is evaluated forcultural resource impacts by the Chemistry Manager (or designee).Response:Proposed activities at Braidwood are subject to a screening process to determinewhether further evaluation for environmental impacts and risk is warranted (EN-AA-1 03).When warranted, the responsible individuals will request further environmental review byEnvironmental personnel. Environmental personnel assigned to prepare anenvironmental evaluation of impacts to archeological or cultural resources would takethe following steps, as indicated in the cultural resources management plan:1. Determine whether the actual or potential environmental impacts of theactivity are bounded by the environmental basis for the nuclear power plant,as delineated in EN-AA-1 03-0001. If the actual or potential impacts ofexcavation associated with the activity are not bounded by the environmentalbasis, then continue with the following steps. Otherwise, the activity mayproceed with no further action.2. Determine whether the proposed land-disturbing activity occurs within anexcluded area (i.e., an area that has been previously disturbed byconstruction activities). If YES, then the activity may proceed with no furtheraction. If NO, then the following additional steps would be taken.3. A Cultural Resource Environmental Review Form, would be completed.4. If, after completing the Cultural Resource Environmental Review Form, theevaluator determined that the proposed land-disturbing activity would neitheroccur in a culturally protected area as defined in the Cultural ResourcesManagement Plan, nor result in significant noise, air, or visual impacts torecorded cultural resources, then the activity would proceed.5. If, after completing the Cultural Resource Environmental Review Form, theevaluator determined that the proposed land-disturbing activity would eitheroccur in a culturally protected area, or cause significant noise, air, or visualeffects that impact recorded cultural resources, then an effort would be madeto identify a way to avoid the impacts.6. If no practical alternative is available, then consultation would be initiated withthe State Historic Preservation Officer (SHPO) to determine what measureswould be needed to avoid or minimize impacts to culturally protected areas ora recorded cultural resource.7. Any plans or measures resulting from consultation with the SHPO would beincorporated into the work plan for the land-disturbing activity.List Attachments Provided:None RS-14-029Enclosure BPage 4 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-7 Category: Cultural ResourcesStatement of Question:Provide a description of Braidwood's transmission line management plan, including: timing ofactivities; danger tree removal and other clearing; inspections and repair activities conductedby ground vehicles; standard operating procedures or guidelines for the applicant and anycontractors; erosion control procedures; technician training programs; and any regulationsthat restrict maintenance activities (e.g., looking for activities that could affect depth ofdisturbance, if any disturbance is necessary along the corridor).Response:In the Braidwood Station License Renewal ER, Exelon Generation applied the NRCregulations and guidance that were in effect at the time the Byron and BraidwoodLicense Renewal Application (LRA) was submitted (May 2013) to define for whichtransmission lines environmental impacts should be analyzed. Under the previousregulations and guidance, the in-scope transmission lines for Braidwood license renewalincluded the transmissions lines that were constructed with the station to connect it tothe regional electricity grid. Such lines, which are all owned and operated by CoinEd,are identified in the Braidwood License Renewal ER as follows:Braidwood-to-Crete (retired) Transmission Line (345-kV line on double-circuittowers)In June 2013, after the Byron and Braidwood LRA was submitted, the NRC finalizedregulations that changed the requirements and guidance defining which transmissionlines would be within the scope of license renewal environmental review. Under the newregulations, in-scope transmission lines are defined as transmission lines that connectthe nuclear power plant to the substation where electricity is fed into the regional powerdistribution system and transmission lines that supply power to the nuclear plant fromthe grid. This definition is further explained in the Statement of Considerations for thefinal rule, which states that "those transmission lines that would not be impacted by alicense renewal decision (i.e., those lines that would not be dismantled or otherwisedecommissioned as a result of a plant terminating operations because its operatinglicense had not been renewed) are considered beyond the scope" for the licenserenewal environmental review. (78 Federal Register 37296 -37297; June 20, 2013)Because the NRC will now apply the new regulations to define the scope of transmissionlines for which environmental impacts are analyzed in the License RenewalSupplemental Environmental Impact Statement for Braidwood Station, ExelonGeneration has revisited its original evaluation of the in-scope lines. Electricitygenerated at Braidwood Station is transformed from generator voltage to a nominal 345-kV transmission system voltage by the main power transformers. The main powertransformers are connected via intermediate, on-site transmission lines to the on-site345-kV Braidwood Station switchyard. The location of the intermediate transmissiontowers on the site property is shown in Braidwood UFSAR, Figure 8.2-7. For ease ofreference, a copy of the figure is attached to this response. Based on this informationand that there are no other transmission lines that would be dismantled or otherwise RS-14-029Enclosure BPage 5 of 76decommissioned as a result of terminating operations at Braidwood, Exelon concludesthat, under the new regulations, the intermediate, on-site transmission lines are the onlyin-scope transmission lines for the Braidwood license renewal environmental review.These transmission lines are located entirely within previously disturbed areas on theBraidwood site. Grounds management practices for those areas are described in theresponse to Request for Additional Information Question CR-8.List Attachments Provided:1. UFSAR, Revision 8, Figure 8.2-7, Property Plan RS-14-029Enclosure BPage 6 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-8 Category: Cultural ResourcesStatement of Question:Provide information on management of the land around less-developed areas of the plantsite, especially near known historic and cultural resources or near unsurveyed areas.Response:Vegetation control at Braidwood is the responsibility of the Facilities MaintenanceDepartment (FMD). The following guidelines are used for consistency in this activity;* Regular -Grassy areas inside and outside of the Protected Area (PA) aregenerally mowed on a regular basis to maintain a height of 5" or less. (NewTraining Building (NTB), facility entrance roadway, and areas around the parkinglots.)* Secondary- There is procedural guidance for mowing of the Owner ControlledAreas (OCA) through Security procedure SY-BR-101-113, section 4.2, whichdirects the maintenance of specific heights of grass in particular areas basedupon the Attachment 3 map. Security supervision contacts FMD if the vegetationheight threatens the ability of Security to maintain proper vigilance of the facility.FMD and Security personnel tour these areas as needed to discuss possibleissues or special requests. (drainage ditches, near security equipment)" Outlying -Areas that are of less significance to Security and the overallasthetics of the site, but warrant some degree of vegetation control for workaccess, security inspections, or noxious weed control. These areas have a goalof being mowed twice per year. (Meteorological Tower, cooling lake roads,sample well access roads)* Blowdown- the Blowdown line to the River Screen House (RSH) area roadmowing goal is once per year. Typically the areas around Blowdown valvestations and sample wells are done once a year or as requested to supportmaintenance.* Less Developed -Less developed areas of the Owner Controlled Areas (OCA)are given attention as requested. Tree and shrub removal is completed asneeded, or as directed to ensure proper cooling lake dike integrity.Note: The frequency of mowing activities is subject to weather conditions, emergent andscheduled work activities, plant priorities, and FMD personnel availability.Note: Known historic and cultural resourses on the Braidwood site are not maintained inany way differently than any of the other landscape in the immediate surrounding area.List Attachments Provided:None RS-14-029Enclosure BPage 7 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-13 Category: Cultural ResourcesStatement of Question:Does Exelon conduct cultural resource training at Braidwood? If so, provide anydocumentation of cultural resource training required for staff.Response:Cultural resources training is not currently required for Braidwood staff members.List Attachments Provided:None RS-14-029Enclosure BPage 8 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR- 19Category:Cultural ResourcesStatement of Question:Provide the breakdown (in percentages) of land use (i.e., industrial, agricultural, woodland,etc.) for the Braidwood site. Include leased land.Response:The Braidwood Station occupies approximately 4,457 acres of land [Braidwood ER, sec.2.1, p. 2-3]. On-site land uses include:2,540 acres264 acres67 acres1,280 acres306 acresWaterIndustrial (including makeup/blowdown pipeline and river screenhouseAgriculturalFormer strip mine areas leased for recreationFormer strip mine and revegetated areas not used for recreationList Attachments Provided:None RS-14-029Enclosure BPage 11 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-2Category:SocioeconomicsStatement of Question:Provide updated property tax information, similar to the data provided in Tables 2.7-2 and2.7-3 of the ER. Include data for the years 2011 and 2012, if available.Response:Data provided below were collected from Will County and the Claypool Drainage District.Table SOC-2.1CombinedProperty Tax Payment Comparison, All Taxing DistrictsBraidwoodStation PaymentTotal Combined Braidwood Station as percent ofTaxing District Levy Property Tax Total DistrictYear -Will County ($) Payment ($) Levy (%)2011 1,624,892,431.55 20,548,423.30 1.262012 1,685,592,470.84 24,548,764.24 1.46Table SOC-2.2 Property Tax Payment Comparison, Reed-Custer School District255-UBraidwoodReed-Custer School StationDistrict 255-U Payment asPortion of percent ofTotal Reed-Custer Braidwood Station Reed-CusterSchool District 255- Property Tax School DistrictYear U Extended Levy ($) Payment ($) 255-U Levy (%)2011 20,141,090.91 13,594,795.15 672012 21,476,914.64 16,039,297.36 75List Attachments Provided:None RS-14-029Enclosure BPage 9 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-20 Category: Cultural ResourcesStatement of Question:Provide information regarding management of the land leased by Exelon associated with theBraidwood site to public or private entities -is Exelon managing this land, or is managementleft to the lessee with oversight by Exelon?Response:The Braidwood Station occupies approximately 4,457 acres of land. Approximately 67acres (1.5 percent) of the total land area occupied by the Braidwood Station are leasedfor agricultural use. An additional 3,820 acres (85.7 percent), including a large portion ofthe cooling pond, are leased for recreational purposes.Regarding control of leased land within the Braidwood site, Exelon Generation generallyretains an unrestricted right to enter, use, and dispose of the leased land for its businesspurposes and in the event of emergencies. Also, subleases are not allowed, and leasestypically restrict use of the leased land solely to a designated purpose, such as forrecreational purposes, for farming and agricultural purposes, for cultivating crops, and/orfor pastureland. In addition, some leases may prohibit certain specific activities on theleased land, such as removing top soil, changing the original ground grade level, alteringthe natural water drainage pattern, and installing irrigation systems. Some leases mayrequire Exelon Generation's prior review and approval for construction or installation ofany improvements on the leased land.List Attachments Provided:None RS-14-029Enclosure BPage 10 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-1Category:SocloeconomicsStatement of Question:Provide updated permanent workforce data, preferably a residential distribution of permanentworkforce by county in table format.Response:The table below provides an updated distribution of permanent workforce by county inIllinois.County Permanent WorkforceBloomington 1Cook 36DeKalb 1DuPage 37Ford 3Grundy 216Iroquois 8Kane 4Kankakee 95Kendall 26Lake 3LaSalle 31Livingston 31Mclean 2Will 356Counties Not In Illinois 6County Not Listed 29Total 885List Attachments Provided:None RS-14-029Enclosure BPage 12 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-3 Category: SocioeconomicsStatement of Question:Braidwood's last settlement agreement was signed on March 12, 2008 and covered taxyears 2007 through 2011. What is the status of the settlement agreement for current andfuture years? Has Exelon entered into a new settlement agreement with Will County andother taxing districts to set the equalized assessed value (EAV) of Braidwood for tax years2012 and beyond? Provide any relevant information.Response:Exelon Generation and the taxing bodies have not entered into another settlementagreement, although the Company is in active negotiations with the Will CountyAssessor at this time. The Will County Assessor set the equalized assessed value(EAV) for the 2012 tax year at $470 million. Exelon Generation believes the higher EAVovervalues Braidwood Station because an independent appraiser set the 2012 value ofthe station at $2 billion, which equates to an EAV of approximately $333.3 million. Onthis basis, Exelon Generation appealed the 2012 assessment to the Will County Boardof Review. Upon an unfavorable ruling by the Board of Review, Exelon Generation thenappealed the 2012 assessment to the Illinois Property Tax Appeal Board. For 2013, theWill County Assessor set the EAV at $470M (no change from 2012). Exelon Generationappealed to the Will County Board of Review. The Company will continue to negotiatewith the assessor and with the taxing bodies to attempt to reach a settlement agreement,and in its absence, will appeal any assessment that does not reflect a fair valuation ofthe plant. However, pending the outcome of such actions, Exelon Generation has paidthe tax assessed for 2012 (an increase of more than $3 million over the prior year).[Note that this was the EAV set by the assessor just for the three power block PropertyIdentification Numbers (PINs) combined, while Exelon Generation actually pays taxes on78 parcels at the Braidwood Station. The total taxes paid by Exelon Generationidentified in Table SOC-2.1 includes taxes for all of the PINs.]List Attachments Provided:None RS-14-029Enclosure BPage 13 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-4 Category: SocioeconomicsStatement of Question:In accordance with the 2008 settlement agreement, Exelon agreed to make payments inaddition to taxes (PIATs) to specific tax recipients. Under the agreement, Exelon made PIATpayments of $37,711,150 for tax year 2007 (paid in 2008) and $3,643,566 for tax year 2008(paid in 2009). Have there, or will there be, additional PIATs in the future? Were PIATs paidin 2010 and 2011 for tax years 2009 and 2010? If so, have there been any changes to thelist of recipients or proportion of payments in ER Table 2.7-1? Provide any relevantinformation.Response:The negotiations with the taxing bodies that receive taxes for Braidwood Station are inthe early stages, and Exelon Generation cannot confirm or rule out the future use ofPIAT payments as part of any settlement agreement. No PIATs were paid in 2010 or2011 for the tax years 2009 or 2010. If PIATs become part of any future settlementagreement, Exelon Generation expects the list of recipients would be the same as thoselisted in ER Table 2.7-1 because those are the taxing bodies that levy tax on the threepower block Property Index Numbers (PINs). The settlement agreements havehistorically only settled the EAV for the three power block PINs.List Attachments Provided:None RS-14-029Enclosure BPage 14 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-5 Category: SocioeconomicsStatement of Question:Exelon pays annual property taxes to a number of taxing entities within, and including,Will County. The Will County Treasurer collects Braidwood's property tax payment anddisperses it to the various taxing entities to partially fund their respective operatingbudgets. Please provide additional information about tax payments to Will County (aftertax triggers and not including PMAT payments) and the portion of the county tax moniesallocated to "the forest preserve, township and forest districts, school districts, fireprotection districts, park districts, library districts, and the county's cities and villages."Please provide a brief explanation of how these payments are allocated. Please providea table showing the amount of distribution (or percentage) of the Braidwood property taxpayment and each recipient's total revenue (or percent of total revenue). Note, the staffis seeking information to know how dependent some of these recipients may be on therevenue received from the Braidwood property tax payment via Will County.Response:Exelon Generation pays taxes directly to Will County in accordance with tax billsreceived from Will County each year. A copy of one of those bills is attached to thisresponse as an example. This illustrative bill shows a line entry for each of the taxingbodies that impose tax on that particular tax parcel. As the Braidwood Station propertyis large, some of the tax parcels it includes fall within multiple taxing districts. There isno one tax parcel that is levied on by every taxing body that levies against the station,and therefore no one bill that shows all of the taxing districts that levy tax on the totalproperty.Exelon Generation has no control over how the tax money it pays is allocated by theCounty to the taxing districts. Each district has the ability to levy against all taxpayerswithin its respective district according to its own charter and according to state law. Thecurrent levies are noted as a percentage in the column marked "Rate" on the tax bill.Exelon Generation understands that the County Treasurer allocates the tax moneycollected to the respective taxing bodies according to their pre-determined levies onceall taxes have been collected.The tables below for 2011 and 2012 show the total levy for each taxing body thatimposes a tax on some portion of the Braidwood Station property, and show the exactamount paid by Exelon Generation to each taxing body. The tables also show thepercentage of total revenue represented by Exelon Generation's payment for eachtaxing body for the tax years 2011 and 2012. RS-14-029Enclosure BPage 15 of 76Table SOC-5.12011 Property Tax Payment Comparison, Each Taxing District IndividuallyTaxing DistrictPortion ofBraidwood StationProperty TaxPayment ($)BraidwoodStation Paymentas Percent ofTaxing DistrictLevy (%)Total TaxingDistrict Levy ($)Taxing BodyWill County Forest PreserveWill County Building CommissionReed Township Town FundsReed Township Road FundsBraidwood Fire DistrictEssex Fire DistrictCuster Township Town FundsCuster Township Road FundsCuster Fire DistrictSchool District 255-UJoliet Junior Community College525Godley Park DistrictVillage of Braceville Road andBridgeBraidwood Park DistrictFossil Ridge Public LibraryReed Township MosquitoAbatementWill CountyClaypool Drainage District33,991,038.144,015,499.58170,009.32178,530.091,546,592.5115,106.0984,196.41200,060.7970,096.7320,141,090.9140,559,603.38936,736.01160.51154,986.17636,060.44131,964.64107,435,329.2396,479.62726,125.1285,779.74122,365.90144,527.951,113,239.083,646.112,034.294,857.261,944.8713,594,795.151,056,376.97865,880.3491.037,122.11429,327.3094,997.642,295,036.04276.40227281722422367392575677220.2 RS-14-029Enclosure BPage 16 of 76Table SOC-5.12012 Property Tax Payment Comparison, Each Taxing District IndividuallyTaxing BodyWill County Forest PreserveWill County Building CommissionReed Township Town FundsReed Township Road FundsBraidwood Fire DistrictEssex Fire DistrictCuster Township Town FundsCuster Township Road FundsCuster Fire DistrictSchool District 255-UJoliet Junior Community College525Godley Park DistrictVillage of Braceville Road andBridgeBraidwood Park DistrictFossil Ridge Public LibraryReed Township MosquitoAbatementWill CountyClaypool Drainage DistrictTotal TaxingDistrict Levy ($)35,103,179.944,003,154.85177,882.77189,927.841,649,412.2715,907.6886,815.47201,819.5472,233.7921,476,914.6442,887,756.321,249,133.79115.69158,705.25673,848.52138,820.97107,557,817.1396,278.28Taxing DistrictPortion ofBraidwoodStation PropertyTax Payment ($)886,752.47101,125.06140,903.01167,040.761,306,774.554,041.932,255.695,304.171,987.8416,039,297.361,320,350.251,234,838.5243.737,548.82503,240.49109,961.472,717,021.72276.40BraidwoodStation Paymentas Percent ofTaxing DistrictLevy (%)3379887925.33375399385757930.2List Attachments Provided:1. Sample Braidwood Property Tax Bill RS-14-029Enclosure BPage 17 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-6 Category: SocioeconomicsStatement of Question:In addition to property tax payments and PIAT information presented in Section 2.7 ofthe ER, describe any other major annual support payments, one-time payments, andother forms of non-tax compensation (if any) provided to local organizations,communities, and jurisdictions (e.g., county, municipality, townships, villages,incorporated places, and school districts) by Exelon.Response:Braidwood Station also provides charitable donations in fairly small amounts to anumber of local governmental, charitable, educational and other organizations. The totalof these donations for 2012 was $121,980, which total includes some fund raising fromthe local community that was then donated to a local charity. The attached chart showsa typical list of all the charitable donations for the year 2012. These charitable donationshave not been significantly different in recent years, and are expected to continue at thisor a slightly lower level in future years.The station also makes payments to the Illinois Emergency Management Agency(IEMA), a portion of which are sent to Will County to assist with the operation of theCounty Emergency Preparedness Facility and to other local governmental unitssurrounding the Braidwood Station for purposes of emergency management related tothe nuclear station (such payments were made to Braidwood Fire Protection District,Essex Fire Protection District, Village of Godley, and City of Joliet). The total amountExelon Generation paid to IEMA for fiscal 2012 (July 1, 2012 -June 30, 2013) was$951,591. The portion of Exelon's fee to IEMA that was sent to jurisdictions surroundingBraidwood Station for fiscal 2012 was $106,768, including $78,593 directly to WillCounty.List Attachments Provided:1. SOC-6 Table, 2012 Braidwood Site Fund Charitable Expenditures RS-14-029Enclosure BPage 18 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-7 Category: SocioeconomicsStatement of Question:Provide information about any anticipated changes in state and local tax laws, rates, andassessed property value or any other recent or anticipated tax payment adjustments thatcould result in notable future increases or decreases in property taxes or otherpayments.Response:Except as stated in the responses to Request for Additional Information QuestionsSOC-3, SOC-4 and SOC-5, Exelon Generation has no information about futureincreases or decreases in property taxes or other payments to state and local taxingentities.List Attachments Provided:None RS-14-029Enclosure BPage 19 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: E.J-1 Category: Environmental JusticeStatement of Question:Provide summaries of telephone interviews conducted by Exelon regarding local subsistenceconsumption behavior patterns. These interviews were located in Supplemental Report,Volume II, Table 1, during the environmental audit.Response:The summaries of telephone interviews conducted by Exelon regarding localsubsistence consumption behavior patterns are provided in the attachment.List Attachments Provided:1. Compilation of Telephone Logs. Investigating Potential Existence ofSubsistence-Like Populations in Will County, Grundy, and Kankakeecounties, Illinois. July 24, 2013 RS-14-029Enclosure BPage 20 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: EJ-2 Category: Environmental JusticeStatement of Question:Provide information about current or past wildlife sampling and testing of game animals suchas deer, squirrel, turkey, pheasant, duck, fish and other game birds and animals that mayhave been conducted in the vicinity of Braidwood. Wildlife sampling and testing may havebeen conducted before, during, and after plant construction and in the early days of plantoperation, but was discontinued after determining that tissue samples consistently showedno significant or measurable radiological impact on the environment from plant operations.Response:The Braidwood Station FES, Section 5.9.3.4, describes the preoperational andoperational radiological environmental monitoring programs. Neither wildlife samplingnor testing of terrestrial game animals was included in either program. Fish samplingwas included in both programs and continues to be conducted as part of the currentannual radiological environmental monitoring program. Results of the fish samplingprogram are reported in the Braidwood Station Annual Radiological EnvironmentalOperating Reports; results from 2004 through 2010 are summarized in the table below.Fish samples were collected at two locations semiannually in 2004, 2005, and in the firstevent of 2006. A third sampling location was added in the second semiannual event of2006, and fish samples were collected at three locations in all subsequent samplingevents. One of the locations, which is on the Kankakee River upstream of theBraidwood discharge, acts as a control location and is approximately 5.0 miles east ofBraidwood Station. Another of the locations, which could be affected by BraidwoodStation's effluent releases, is located on the Kankakee River at the plant discharge intothe river, approximately 5.4 miles east of Braidwood Station. The third location, whichcould be affected by Braidwood's effluent releases, is in the cooling pond, approximately1.0 mile east of Braidwood Station. Gamma Spectrometry Analysis was performed onthe edible portion of fish samples from each location.Year Species Sampled Results of Gamma Spectrometry Analysissmallmouth bass, largemouth The edible portion of fish samples from two2 ma00m4uth bass, c elargodemt locations was analyzed for gamma emitting2004 bass, channel catfish, golden nuclides. No nuclides were detected, and allredhorse required LLDs were met.smallmouth bass, golden The edible portion of fish samples from two2005 smamuhannel bass , ge locations was analyzed for gamma emitting2005 redhorse, channel catfish, rock nuclides. No nuclides were detected, and allbass, carp required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from all2006 bass, golden redhorse, locations was analyzed for gamma emittingchanneld redfih, common, carpnuclides. No nuclides were detected, and allchannel catfish, common carp required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from all2007 bass, rock bass, golden locations was analyzed for gamma emittingredhorse, channel catfish, nuclides. No nuclides were detected, and all RS-14-029Enclosure BPage 21 of 76Year Species Sampled Results of Gamma Spectrometry Analysisbluegill, common carp required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from all2008 bass, golden redhorse, locations was analyzed for gamma emittingchannel catfish, common carp, nuclides. No nuclides were detected, and allquillback, walleye required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from all2009 bass, golden redhorse, locations was analyzed for gamma emittingbluegill, channel catfish, nuclides. No nuclides were detected, and allcommon carp required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from all2010 bass, golden redhorse, locations was analyzed for gamma emittingquillback, freshwater drum, nuclides. No nuclides were detected, and allchannel catfish, common carp required LLDs were met.List Attachments Provided:None RS-14-029Enclosure BPage 22 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: TE-1 Category: Terrestrial EcologyStatement of Question:Provide the following references:a. (CornEd 1973a) Commonwealth Edison Company. 1973. Braidwood StationEnvironmental Report -Volume I. July 1973 (Terrestrial Ecology sectionsonly).b. (CoinEd 1973b) Commonwealth Edison Company. 1973. Braidwood StationEnvironmental Report -Volume II. July 1973 (Terrestrial Ecology sectionsonly).c. (CoinEd 1985) Commonwealth Edison Company. 1985. Braidwood StationUnits 1 and 2, Environmental Report -Operating License Stage. NRC DocketNos. 50-456 and 457, Amendment 7. June 10, 1985 (Terrestrial Ecologysections only).Response:The requested information is attached.List Attachments Provided:1. Terrestrial Ecology Sections from CornEd 1973a. Commonwealth EdisonCompany. 1973. Braidwood Station Environmental Report -Volume I July1973.2. Terrestrial Ecology Sections from CornEd 1973b. Commonwealth EdisonCompany. 1973. Braidwood Station Environmental Report -Volume II July1973.3. Terrestrial Ecology Sections from CornEd 1985. Commonwealth EdisonCompany. 1985. Braidwood Station Units 1 and 2, Environmental Report -Operating License Stage. NRC Docket Nos. 50-456 and 457, Amendment 7.June 10, 1985. RS-14-029Enclosure BPage 23 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: TE-3 Category: Terrestrial EcologyStatement of Question:Provide the following information:(a) The May 31, 2013, Wildlife at Work recertification application and enclosedWildlife Management Plan that was discussed with the NRC staff for reviewduring the site audit in response to TE-3 (Environmental Report, Section 2.4,Page 2- 30, paragraph 4).(b) The October 18, 2013, letter from Margaret O'Gorman, Wildlife Habitat Council,to Brittney O'Conner, Exelon, that was discussed with the NRC staff for reviewduring the site audit in response to TE-3 (Environmental Report, Section 2.4,Page 2 -30, paragraph 4).(c) During the site audit, Exelon staff indicated that Exelon intends to continue tomaintain its Wildlife at Work Certification throughout the proposed licenserenewal term. Please confirm that this statement is true.Response:(a) The requested document is attached to this response.(b) The requested document is attached to this response.(c) Since 2004, Exelon Corporation has pursued an environmental strategy thatbuilds on four fundamental elements: Regulatory compliance, riskmanagement, resource stewardship and leadership on key environmentalissues. Since 2005, Exelon Corporation has been a member of the WildlifeHabitat Council (WHC), which is a nonprofit group of corporations,conservation organizations and individuals dedicated to restoring andenhancing wildlife habitat. The WHC's Corporate Wildlife HabitatCertification/International Accreditation Program recognizes commendablewildlife habitat management and environmental education programs atindividual sites, and WHC certification adds value to programs by providingthird-party credibility and an objective evaluation of projects. Exelon'spartnership with the WHC emphasizes the corporation's commitment toenvironmental stewardship and leadership.Exelon Generation encourages and supports its generating stations in theirindividual voluntary efforts to attain WHC Wildlife at Work Certifications,which signify an intention to exceed regulatory requirements. BraidwoodStation has achieved the WHC Wildlife at Work Certification and intends toseek funding for continued implementation of wildlife protection programs intothe future. Exelon Generation expects to support this goal, but cannotconfirm that funding will be available for this activity throughout the proposedlicense renewal term. RS-14-029Enclosure BPage 24 of 76List Attachments Provided:1. The May 31, 2013, Wildlife at Work recertification application and enclosedWildlife Management Plan that was discussed with the NRC staff for reviewduring the site audit in response to TE-3 (Environmental Report, Section 2.4,Page 2- 30, paragraph 4).2. The October 18, 2013, letter from Margaret O'Gorman, Wildlife Habitat Council,to Brittney O'Conner, Exelon, that was discussed with the NRC staff for reviewduring the site audit in response to TE-3 (Environmental Report, Section 2.4,Page 2 -30, paragraph 4). RS-14-029Enclosure BPage 25 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: LU-1 Category: Land UseStatement of Question:The June 20, 2013, final rule that amended 10 CFR Part 51 revised the scope of thetransmission line review for license renewal to be those "transmission lines that connect thenuclear power plant to the substation where electricity is fed into the regional powerdistribution system and transmission lines that supply power to the nuclear plant from thegrid" (see 10 CFR Part 51, Appendix B to Subpart A, Table B-i, Footnote 4). Please providethe following information:(a) Identify the name and location of the substation that connects Braidwood to theregional grid.(b) Clarify which portions of the transmission lines described in Section 3.1.6 of theER are in scope for the license renewal review according to the reviseddefinition.(c) Confirm that the following statement regarding transmission lines that supplypower to Braidwood remains true under the revised transmission line scope (ERSection 3.1.6, Page 3-14, Paragraph 2): "No separate transmission lines exist forthe purpose of supplying power to Braidwood from the grid (off-site power)."Response:a. Braidwood is connected to the regional grid at the on-site 345-kV BraidwoodStation switchyard.b. Electricity generated at Braidwood Station is transformed from generator voltageto a nominal 345-kV transmission system voltage by the main powertransformers. The main power transformers are connected via intermediate, on-site transmission lines to the on-site 345-kV Braidwood Station switchyard. Thelocation of the intermediate transmission lines on the site property is shown inBraidwood UFSAR, Figure 8.2-7. For ease of reference, a copy of the figure isattached to this response. Based on this information and that there are no othertransmission lines that would be dismantled or otherwise decommissioned as aresult of terminating operations at Braidwood, Exelon concludes that, under therevised regulations, the intermediate, on-site transmission lines are the only in-scope transmission lines for the Braidwood license renewal environmentalreview. These transmission lines are located entirely within previously disturbedareas on the Braidwood site.Under the prior regulations and guidance, the in-scope transmission lines forBraidwood license renewal included one transmission line that was constructedwith the station to connect it to the regional electricity grid. That line, which isowned and operated by ComEd, is identified in the Braidwood License RenewalER as the "Braidwood-to-Crete (retired) Transmission Line" (345-kV line ondouble-circuit towers). Under the 2013 definition of in-scope transmission lines,this transmission line is no longer in-scope for the Braidwood license renewal RS-14-029Enclosure BPage 26 of 76environmental review. This conclusion is discussed in further detail in ExelonGeneration's response to Request for Additional Information CR-7.c. The statement in the Braidwood License Renewal ER regarding transmissionlines that supply power to Braidwood Station remains true under the 2013definition of in-scope transmission lines. A description of the offsite electric powersystem that supplies power for safety functions is provided in theByron/Braidwood UFSAR (Exelon Nuclear 201 Oa), section 3.1.2.2.8 (pp. 3.1-8and 3.1-9) and Chapter 8.List Attachments Provided:1. Braidwood Station UFSAR Figure 8.2-7, Property Plan. RS-14-029Enclosure BPage 27 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: LU-2 Category: Land UseStatement of Question:Does Exelon intend to perform any construction or land-disturbing activities during theproposed license renewal period that would be unrelated to refurbishment activities?Response:At present, no construction or land-disturbing activities are planned that would beunrelated to the activities described in the Braidwood License Renewal ER ashypothetical refurbishment activities.List Attachments Provided:None RS-1 4-029Enclosure BPage 28 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ-2 Category: Aquatic EcologyStatement of Question:Provide the following reference:HDR Engineering, Inc. (HDR). 2008. Investigations to Determine Presence of State-ListedSpecies of Fish and Freshwater Mussels in the Kankakee River near the Braidwood NuclearStation Warm-water Discharge Channel. October 2008.Response:The requested document is attached.List Attachments Provided:* HDR Engineering, Inc. (HDR). 2008. Investigations to Determine Presence ofState-Listed Species of Fish and Freshwater Mussels in the Kankakee River nearthe Braidwood Nuclear Station Warm-water Discharge Channel. October 2008. RS-14-029Enclosure BPage 29 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ-3 Category: Aquatic EcologyStatement of Question:Provide the following references:(a) Exelon's Incidental Take Permit regarding construction of the new dischargestructure.(b) Exelon Nuclear (Exelon). 2010. Final Report: Unionid Relocation near theBraidwood Nuclear Station Kankakee River Discharge Location. September 2010.Response:The requested documents are attached.List Attachments Provided:1. Incidental Take and Implementing Agreement regarding construction atBraidwood Station of a new outfall and multiport diffuser impacting theKankakee River in Will County, Illinois. January 13, 2010.2. Exelon Nuclear (Exelon). 2010. Final Report: Unionid Relocation near theBraidwood Nuclear Station Kankakee River Discharge Location. September2010. RS-14-029Enclosure BPage 30 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ-4 Category: Aquatic EcologyStatement of Question:Section 3.1.3 of the ER describes grills, trash rakes, and traveling screens within the lakescreen house and the river screen house. Provide the following information:(a) Describe the mesh size of traveling screens at the lake screen house.(b) Describe the through-screen velocity at the traveling screens at the lake screenhouse.(c) Clarify whether the intake houses include any fish return structures. If fish returnstructures occur, discuss estimates of survival rates for fish that go through thereturn structure.(d) Describe the cleaning and maintenance procedures at the river screen house anddischarge structure, including the frequency of dredging, physical cleaning, andother maintenance procedures.Provide the following references:(e) Exelon Generation (Exelon). 2009. Letter from Exelon Generation (L. Coyle) toU.S. Army Corps of Engineers (K. Bliss) regarding Regional Permit #8 Utility LineApplication to Dredge the River Inlet to the Intake Forebay of the BraidwoodGenerating Station's River Screen House on the Kankakee River. February 3,2009.(f) U.S. Army Corps of Engineers (ACOE). 2009. Letter from U.S. Army Corps ofEngineers (K. Wozniak) to Exelon Corporation Braidwood Nuclear GeneratingSystem (L. Coyle) regarding authorization to proceed with proposed dredging.June 11,2009.(g) Exelon Generation Procedure CR-BR-120-4130, Braidwood Lake MicrobiologicalStrategic Plan.(h) CW-2, Circulating Water Training Figure 39-3, Lake Screen House Sectional(June 13, 2013, Rev. 1).Response:a) Lake screen house traveling screen mesh size = 3/8 inchb) Lake screen house traveling screen intake velocity = 2.37 fps (100% cleanscreen @ low water depth of 20.7 ft)c) Neither the lake screen house traveling screen nor the river screen housetraveling screen has a fish return system.d) Cleaning and maintenance procedures at the river screen house and dischargestructure are as follows: RS-14-029Enclosure BPage 31 of 761. River Screen HouseThe potential need for cleaning and maintenance at the river screen house intakewould be first identified through routine- surveillance activities and may resultfrom the any of the following causes:* excessive sedimentation in the intake structure forebays" macro-biological fouling in the intake structure forebays* silt accumulation on the Kankakee River bottom in front of the bar grillsOnce a potential need has been identified, further inspection by divers is initiatedto evaluate whether an action level identified in procedure BwMP 3300-092,River Screen House Diver Related Inspections, has been exceeded. If an actionlevel has been exceeded, appropriate cleaning activities are initiated. There is noestablished frequency at which these as-needed activities occur.In the cases of excessive sedimentation in the intake structure forebays and siltaccumulation in front of the bar grills, maintenance dredging may be necessary.A description of the most recent maintenance dredging activity to remove siltaccumulation in front of the bar grills is provided in the attached application to theU.S. Army Corps of Engineers dated February 3, 2009 for a regional dredgingpermit and in the resulting permit.2. River Discharge StructureThe Braidwood diffuser discharge structure, which began operating in lateDecember 2010, consists of seven diffuser nozzles inside a concrete diffuserspillway buried flush with the river bottom in the deepest part of the river. Thediffuser nozzles are inspected annually by a diver to evaluate the need formaintenance. If an inspection indicates that maintenance is required, ExelonGeneration expects that divers will be able to complete the necessary workwithout impeding normal flow in the Kankakee River or impacting aquaticspecies. Also, Exelon Generation does not expect to conduct maintenancedredging in the vicinity of the diffuser because operation of the diffuser nozzlesflushes sediment away from the spillway structure. The previously existing riverdischarge canal, which releases to the river at surface elevation, remains as abackup discharge system. Maintenance dredging also has not been necessaryin the vicinity of the previously existing discharge canal outfall.e) The requested document is attached.f) The requested document is attached.g) A summary of Exelon Generation Procedure CR-BR-120-4130, Braidwood LakeMacrobiological Strategic Plan, is attached instead of the procedure itself perclarification received from NRC staff subsequent to issuance of this request foradditional information.h) The requested document is attached. RS-14-029Enclosure BPage 32 of 76List Attachments Provided:1. AQ e) Exelon Generation (Exelon). 2009. Letter from Exelon Generation(L. Coyle) to U.S. Army Corps of Engineers (K. Bliss) regarding RegionalPermit #8 Utility Line Application to Dredge the River Inlet to the IntakeForebay of the Braidwood Generating Station's River Screen House on theKankakee River. February 3, 2009.2. AQ f) U.S. Army Corps of Engineers (ACOE). 2009. Letter from U.S. ArmyCorps of Engineers (K. Wozniak) to Exelon Corporation Braidwood NuclearGenerating System (L. Coyle) regarding authorization to proceed withproposed dredging. June 11, 2009.3. AQ g) Summary of Exelon Generation Procedure CR-BR-120-4130,Braidwood Lake Macrobiological Strategic Plan4. AQ h) CW-2, Circulating Water Training Figure 39-3, Lake Screen HouseSectional (June 13, 2013, Rev. 1). RS-1 4-029Enclosure BPage 33 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ-6 Category: Aquatic EcologyStatement of Question:Exelon has conducted biological monitoring in the Kankakee River for over 20 years.Please provide tables that describe the number of fish caught by species at eachmonitoring location and by sampling gear for each year that monitoring has occurred.For 2012 monitoring information, provide Tables 3-3 and 3-4 from the HDR Engineeringreport.Additionally, provide the following references:(a) EA Science and Technology (EA). 1990. Results of entrainment andimpingement studies conducted at the Braidwood Nuclear Station and theadjacent Kankakee River.(b) EA Science and Technology (EA). 1991. Results of a three monthimpingement study at the Braidwood Nuclear Station, April through June 1991.(c) Larimore RW, Peterson JT. 1989. Kankakee River Fishes of the BraidwoodStation Aquatic Monitoring Area, August 1988. Illinois Natural History SurveyAquatic Biology Technical Report. January 1989.(d) HDR Engineering, Inc. (HDR). 2013. Braidwood Station Kankakee River FishMonitoring Program, 2012.Response:The requested references are attached.In the attached document titled "Braidwood Station Kankakee River Fish MonitoringProgram 1991-2013 Tables Requested by the NRC," tables are provided containingthe total number, by species, of fish caught using electrofishing and seining for eachyear from 1991 through 2013. Also, in the same document, tables are providedcontaining the number, by species, of fish caught using electrofishing at each monitoringlocation from 1991 through 2013.List Attachments Provided:1) EA Science and Technology (EA). 1990. Results of entrainment andimpingement studies conducted at the Braidwood Nuclear Station and theadjacent Kankakee River.2) EA Science and Technology (EA). 1991. Results of a three monthimpingement study at the Braidwood Nuclear Station, April through June 1991.July 1991. RS-14-029Enclosure BPage 34 of 763) Larimore, R.W. and Peterson, J.T. 1989. Kankakee River Fishes of theBraidwood Station Aquatic Monitoring Area, August 1988. Illinois NaturalHistory Survey Aquatic Biology Technical Report. January 1989.4) HDR Engineering, Inc. (HDR). 2013. Braidwood Station Kankakee River FishMonitoring Program, 2012. February 2013.5) HDR Engineering, Inc. (HDR). 2014. Braidwood Station Kankakee River FishMonitoring Program, 1991-2013 Tables Requested by the NRC. January2014. RS-14-029Enclosure BPage 35 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ0-10 Category: Aquatic EcologyStatement of Question:Provide the following references:(a) Commonwealth Edison Company. 1973. Braidwood Station EnvironmentalReport- Volume II. Aquatic Ecology Sections. July 1973.(b) Larimore, R.W. 1989. Kankakee River Fishes of the Braidwood Station AquaticMonitoring Area, August 1989 [sic -should be August 1988]. Illinois NaturalHistory Survey Aquatic Biology Technical Report. January 1989.(c) EA Engineering, Science, and Technology (EA). 2012. Braidwood Station 2011Benthos Monitoring and Historical Fish and Benthos Comparisons. July 2012.(d) Exelon Nuclear (Exelon). 2009. Standard Operating Procedures for BraidwoodStation's Fisheries Monitoring Program in the Kankakee River and Horse Creek.July 2009.(e) Exelon Nuclear (Exelon). 2009. Final Report: Characterization of UnionidCommunities near the Braidwood Nuclear Station Kankakee River DischargeLocation. January 2009.(f) Exelon Nuclear (Exelon). 2009. Application for an Incidental Take Permit forThreatened or Endangered Species and Conservation Plan. May 11, 2009.(g) Exelon Nuclear (Exelon). 2011. Braidwood Station Kankakee River FishMonitoring Program, 2010.(h) (Exelon Nuclear 2011 b) Exelon Nuclear. 2011. Braidwood Station KankakeeRiver Fish Monitoring Program, 2010.(i) Illinois Department of Natural Resources (IDNR). 2008. Status of FishCommunities and Sport Fishery in the Kankakee River and Tributary Streams:2005 Basin Survey. Fisheries Region II, Streams Program. April 2008.(j) Illinois Department of Natural Resources (IDNR). 2000. Permit No NE2000125-proposed operation and maintenance of the Braidwood Nuclear Station coolingpond dam, Will County. Office of Water Resources. December 20, 2000.Response:The requested reference documents are attached, except for:1. Item AQ-10(b), which is a duplicate of the document requested by and provided inresponse to item AQ-6(c); and2. Item AQ-10(h), which is a duplicate of the document requested by and provided inresponse to item AQ-1 0(g). RS-14-029Enclosure BPage 36 of 76List Attachments Provided:1. Commonwealth Edison Company. 1973. Braidwood Station EnvironmentalReport- Volume I1. Aquatic Ecology Sections. July 1973.2. See response to item AQ-6(c).3. EA Engineering, Science, and Technology (EA). 2012. Braidwood Station 2011Benthos Monitoring and Historical Fish and Benthos Comparisons. July 2012.4. Exelon Nuclear (Exelon). 2009. Standard Operating Procedures for BraidwoodStation's Fisheries Monitoring Program in the Kankakee River and HorseCreek. July 2009.5. Exelon Nuclear (Exelon). 2009. Final Report: Characterization of UnionidCommunities near the Braidwood Nuclear Station Kankakee River DischargeLocation. January 2009.6. Exelon Nuclear (Exelon). 2009. Application for an Incidental Take Permit forThreatened or Endangered Species and Conservation Plan. May 11, 2009.7. Exelon Nuclear (Exelon). 2011. Braidwood Station Kankakee River FishMonitoring Program, 2010.8. See response to item AQ-1 0(g).9. Illinois Department of Natural Resources (IDNR). 2008. Status of FishCommunities and Sport Fishery in the Kankakee River and Tributary Streams:2005 Basin Survey. Fisheries Region II, Streams Program. April 2008.10. Illinois Department of Natural Resources (IDNR). 2000. Permit No NE2000125-proposed operation and maintenance of the Braidwood Nuclear Station coolingpond dam, Will County. Office of Water Resources. December 20, 2000. RS-14-029Enclosure BPage 37 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: GW-4 Category: GroundwaterStatement of Question:Discuss what impact on groundwater flow, either recharge to or discharge from the coolingpond has on aquifers around the sides of the pond.Response:The cooling pond is designed to have none or minimal influence on the uppergroundwater aquifer (the shallow sands of the Equality Formation) and on the underlyingdeeper regional bedrock aquifers. This is accomplished by keeping the surface waterseparate and distinct from the surrounding groundwater so as to insure the necessaryvolume of water and quality of water for Braidwood Station cooling systems. The coolingpond is built with a slurry trench (slurry wall or cut off wall) installed from the top of thewater table and anchored 2 feet into the underlying Wedron Clay Till aquitard. This slurrytrench is constructed of a soil bentonite material and has a permeability averagingaround 6 x 10-7 cm/sec. As such, it becomes a barrier against lateral flow of groundwaterin to the cooling lake and flow of surface water out to the groundwater. The slurry trenchextends around the perimeter of the cooling pond.In addition to subsurface barriers that keep groundwater out, the cooling pond wasdesigned with a dike on top of the slurry trench location (or nearby) and extending aspecific distance above the cooling pond water surface and the natural ground surface.This dike prohibits surface water flow into the cooling lake up to an amount that wouldresult from the assumed probable maximum precipitation event, as discussed in section2.4.8.2 of the Braidwood Updated Final Safety Analysis Report (UFSAR). Therefore, thesurrounding groundwater in the shallow sand aquifer is protected from surface wateroverflows from the cooling pond, except in extreme conditions. It should also be notedthat the bottom of the cooling pond is constructed into either the Wedron Clay Till or intothe underlying Francis Creek Shale Formations. Both of these geologic units arerecognized aquitards and as such they would prevent any significant flows of coolingpond water vertically into the underlying deep regional aquifer systems (i.e., the Galenaand Platteville Groups or the deeper St Peter Sandstone Formation). The dike and theSlurry Trench for the Braidwood Station are inspected routinely to ensure their integrity.Attachment No. 1 to this response provides pertinent sections from the BraidwoodUFSAR; specifically sections 2.1.1.1 and sections 2.4.13.2.3. These Sections furtherdiscuss the conditions of the cooling pond described above. Attachment No. 1 alsopresents some figures from the UFSAR and other reports which present information onthe Slurry Trench, the dike and the cooling pond.List Attachments Provided:1. Attachment No. 1 RS-14-029Enclosure BPage 38 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: GW-7 Category: GroundwaterStatement of Question:Provide the following references:(a) (Exelon Generation 2011) Exelon Generation Company, LLC. 2011.Hydrogeologic Investigation Report- Fleetwide Assessment- BraidwoodGenerating Station, Braceville, IL, Revision 1. Braceville, IL. December 2011.(b) (IEPA 2013a) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 1 Completion Report.Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.(c) (IEPA 2013b) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 2/3 and Pond AreaCompletion Report. Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.(d) (IEPA 2013c) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 4 Completion Report.Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.(e) Letter to I EPA, "Final Plan Completion Report for the VB-1, VB-2/3, and Pond,and VB-4 Areas", dated January 16, 2013.(f) Plan Completion Report for the VB-1 Area, Braidwood Generation Station,Braceville, Illinois, October 2012.(g) Plan Completion Report for the VB-2/3 and Pond Area, Braidwood GenerationStation, Braceville, Illinois, December 2012.(h) Plan Completion Report for the VB-4 Area, Braidwood Generation Station,Braceville, Illinois, October 2011.(i) Plan Completion Report for the VB-6 Area, Braidwood Generation Station,Braceville, Illinois, August 2009.(j) Plan Completion Report for the VB-7 Area, Braidwood Generation Station,Braceville, Illinois, February 2010.Response:The requested documents are attached.List Attachments Provided:1. (Exelon Generation 2011) Exelon Generation Company, LLC. 2011.Hydrogeologic Investigation Report- Fleetwide Assessment- BraidwoodGenerating Station, Braceville, IL, Revision 1. Braceville, IL. December 2011. RS-1 4-029Enclosure BPage 39 of 762. (IEPA 2013a) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 1 Completion Report.Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.3. (IEPA 2013b) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 2/3 and Pond AreaCompletion Report. Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.4. (IEPA 2013c) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 4 Completion Report.Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.5. Letter to I EPA, "Final Plan Completion Report for the VB-1, VB-2/3, and Pond,and VB-4 Areas", dated January 16, 2013.6. Plan Completion Report for the VB-1 Area, Braidwood Generation Station,Braceville, Illinois, October 2012.7. Plan Completion Report for the VB-2/3 and Pond Area, Braidwood GenerationStation, Braceville, Illinois, December 2012..8. Plan Completion Report for the VB-4 Area, Braidwood Generation Station,Braceville, Illinois, October 2011.9. Plan Completion Report for the VB-6 Area, Braidwood Generation Station,Braceville, Illinois, August 2009.10. Plan Completion Report for the VB-7 Area, Braidwood Generation Station,Braceville, Illinois, February 2010. RS-14-029Enclosure BPage 40 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-1 Category: Surface WaterStatement of Question:Provide the agreement with the Illinois Environmental Protection Agency (IEPA) limitingBraidwood's consumptive use of surface water.Response:Attached is a letter from Illinois Department of Transportation Division of WaterResources (now Illinois Department of Natural Resources) to the U.S. Department of theArmy, dated April 7, 1977, which stipulates the conditions, agreed to by CommonwealthEdison Company (now Exelon Generation) regarding withdrawal of water from theKankakee River.Also attached is Permit No. 15039, issued by the Division of Water Resourcesauthorizing construction of the river screen house and blowdown outlet for BraidwoodStation. Special Condition m.1 in this permit requires compliance with the conditionsstipulated in the April 7, 1977 letter from the Division of Water Resources to theU.S. Department of the Army.List Attachments Provided:1. Illinois Department of Transportation Division of Water Resources, 1977. Letter toU.S. Department of the Army, District Engineer regarding Issuance of a permit toconstruct the screen house and blowdown structure for a Commonwealth Edisonplant on the Kankakee River. April 7, 1977.2. Illinois Department of Transportation Division of Water Resources, 1977. Permit No.15039 to construct a river screen house and blowdown outlet on the Kankakee Riverfor the Braidwood Station. April 29, 1977. RS-14-029Enclosure BPage 41 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-2 Category: Surface WaterStatement of Question:Provide the reference, "Braidwood Storm Water Pollution Prevention Plan."Response:The requested document is attached.List Attachments Provided:1. Exelon Nuclear 2006. Braidwood Station #20, NPDES Permit No. 1L0048321,Storm Water Pollution Prevention Plan, Revision 5, July 2006 RS-14-029Enclosure BPage 42 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-3 Category: Surface WaterStatement of Question:Provide a status summary of issuance of Braidwood's National Pollutant DischargeElimination System (NPDES) permit that expired September 1, 2000.Response:By cover letter to the Illinois EPA, dated February 29, 2000, an application for renewal ofthe existing NPDES permit was submitted. A copy of this letter appears in Appendix Bto the Braidwood License Renewal Environmental Report. Because the NPDES permitrenewal application was filed in a timely manner, Braidwood continues to operate underthe existing permit, which is administratively continued.On June 27, 2013, the Illinois EPA issued a Draft Reissued NPDES Permit No.1L0048321. Comments received on this draft are under consideration by the agency.A copy of the Draft Reissued NPDES Permit No. IL0048321 is attached to this response.List Attachments Provided:1. Draft Reissued NPDES Permit No. IL0048321 for Exelon Generation CompanyBraidwood Nuclear Power Station, June 27, 2013 RS-14-029Enclosure BPage 43 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-4 Category: Surface WaterStatement of Question:Provide a large-scale map or maps depicting NPDES outfall locations.Response:A map depicting NPDES outfall locations is attached.List Attachments Provided:1. Map of NPDES Outfall Locations. RS-14-029Enclosure BPage 44 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-5Category:Surface WaterStatement of Question:As discussed with applicant's staff during the site audit, provide a summary of availablehistorical and current water quality data for the cooling pond (including temperature), includeaverage ambient values and maximum observed values and date of occurrence, if available.Provide a data set that covers the last 10 years.Response:Table 1 below shows the annual average water quality results for calcium hardness, pH,conductivity, and total alkalinity. Also the annual average cooling pond temperature isshown. The data were collected in front of the trash racks at the lake screen houseintake structure and are provided for years 2004 through 2013.Table 1: Braidwood Cooling Pond Water Quality and Temperature Annual AveragesYear Calcium pH Conductivity Total TemperatureHardness PS/cm Alkalinity °C (OF)(ppm) (ppm)2013 187 8.82 1021 245 20.2 (68.4)2012 192 8.84 1064 254 20.8 (69.4)2011 193 8.86 1021 267 20.4 (68.7)2010 176 8.80 958 254 21.8 (71.2)2009 191 8.82 991 253 19.6 (67.3)2008 202 8.87 1089 245 20.2 (68.4)2007 249 8.77 1143 257 19.1 (66.4)2006 285 8.84 1157 238 20.1 (68.2)2005 389 8.76 1336 240 21.2 (70.2)2004 430 8.57 1499 317 19.7 (67.5) RS-14-029Enclosure BPage 45 of 76Table 2 shows the annual maximum values for the same parameters and time period.The date of the annual maximum measured temperature is also provided. This data setis from analysis of grab samples from the cooling pond, which are obtained severaltimes a week, and the data set does not include any continuous monitor results.Table 2: Braidwood Cooling Pond Water Quality and Tern erature Annual MaximumsYear Calcium pH Conductivity Total Temperature Date ofHardness pS/cm Alkalinity oC (OF) Maximum(ppm) (ppm) Temperature2013 261 9.17 1266 315 37.4 (99.3) 7/19/132012 272 9.09 1209 319 36.8 (98.2) 7/6/122011 263 9.07 1186 324 36.8 (98.2) 8/2/112010 247 9.09 1146 313 34.3 (93.7) 7/11/102009 257 9.20 1182 301 35.5 (95.9) 6/26/092008 278 9.09 1310 315 32.8 (91.0) 8/20/082007 330 9.11 1275 319 35.0(95.0) 8/2/072006 385 9.23 1437 313 34.3 (93.7) 7/31/062005 419 9.20 1542 326 37.3 (99.1) 6/29/052004 491 9.00 1645 443 32.5 (90.5) 7/2/04List Attachments Provided:None. RS-14-029Enclosure BPage 46 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-6 Category: Surface WaterStatement of Question:Provide all non-radiological monitoring reports from the last 5 years, including NPDESDischarge Monitoring Reports and surface water withdrawal records/reports.Response:The requested documents are attached.List Attachments Provided:1. Surface Water and Groundwater Withdrawal Recordsa. Annual Illinois Water Inventory -Exelon Braidwood Station, 2008b. Annual Illinois Water Inventory -Exelon Braidwood Station, 2009c. Annual Illinois Water Inventory- Exelon Braidwood Station, 2010d. Annual Illinois Water Inventory -Exelon Braidwood Station, 2011e. Annual Illinois Water Inventory -Exelon Braidwood Station, 20122. NPDES Discharge Monitoring Reportsa. Monthly NPDES Discharge Monitoring Reports 2008b. Monthly NPDES Discharge Monitoring Reports 2009c. Monthly NPDES Discharge Monitoring Reports 2010d. Monthly NPDES Discharge Monitoring Reports 2011e. Monthly NPDES Discharge Monitoring Reports 2012f. Monthly NPDES Discharge Monitoring Reports 2013 (January -May) RS-14-029Enclosure BPage 47 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-7Category:Surface WaterStatement of Question:Provide copies of any Notices of Violation (NOVs), nonconformance notifications, or relatedinfractions received from regulatory agencies associated with NPDES permitted discharges,sanitary sewage systems, groundwater or soil contamination, including spills, leaks, andother inadvertent releases of fuel solvents, chemicals, or radionuclides (covering the past 5years). Include correspondence of self-reported violations to responsible agencies.Response:During the past 5 years, the Braidwood Station has received no notices of violation fromregulatory agencies associated with NPDES permitted discharges, sanitary sewagesystems, groundwater or soil contamination. The monthly Discharge Monitoring Reports(DMRs) listed below have notified the Illinois EPA of noncompliance with NPDES permitlimits or conditions. The DMRs listed below are available in the response to Request forAdditional Information Question SW-6.Month and YearCovered by DMR Description of NoncomplianceJuly 2009 Sewage treatment plant effluent (Outfall 001 B)* exceeded the30-day average concentration limit for BOD5April 2011 Sewage treatment plant effluent (Outfall 001 B)* exceeded the30-day average concentration limit and the daily maximumlimit for BOD5May 2011 Demineralizer regenerant wastes effluent (Outfall 001 D)exceeded the daily maximum limit for Total Suspended SolidsMarch 2012 Cooling pond blowdown line effluent (Outfall 001 0) exceededthe temperature limit in Special Condition 3B at points beyondthe mixing zone edge due to extreme, record-breaking, warmweather. However, on March 22, 2012, Illinois EPA granted aprovisional variance from the requirements of SpecialCondition 3.**November 2012 Cooling pond blowdown line effluent (Outfall 001 0) exceededthe limit for maximum pH due to an algae bloom* In October 2012, the station's sewage treatment plant ceased operation, and sewagewas rerouted directly into the City of Braidwood Sewage Treatment Plant.** The authorization for provisional variance from Special Condition 3B is attached to thisresponse.List Attachments Provided: RS-14-029Enclosure BPage 48 of 761. Illinois Environmental Protection Agency, 2012. Provisional Variance FromSpecial Condition 3B of NPDES Permit IL0048321, IEPA -12-12 (ProvisionalVariance-Water). March 22, 2012. RS-14-029Enclosure BPage 49 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-8 Category: Surface WaterStatement of Question:In light of excessive cooling pond temperatures experienced during July 2012, provide adiscussion and any relevant information as to whether a warming trend has been observed inthe cooling pond during the period of plant operations. Provide any study(s) or data thatsupport the conclusions reached (e.g., mean annual, seasonal, and/or monthly watertemperature trend for the period of record). Also, describe any measures that Exelon hastaken or plans to take to mitigate the impact of high cooling pond temperatures on plantoperations.Response:The temperature data in Tables 1 and 2 in the response to Request for AdditionalInformation SW-5 provide average and maximum measured temperatures in the Braidwoodcooling pond based on grab samples taken several times a week in front of the trash racks atthe lake screen house during the period from 2004 through 2013. The three years with thehighest average annual temperature in decreasing order are 2010 (21.8 0C), 2005 (21.2 0C),and 2012 (20.8 0C). The three years with the lowest average annual temperature, listed inincreasing order are 2007 (19.1 0C), 2009 (19.6 0C), and 2004 (19.7 °C). Based onassessments using cumulative moving average and simple moving median calculations,no obvious upward trends in annual average or maximum annual cooling pondtemperatures were observable for this data set.Although, in response to extreme weather events during recent years, Exelon Generation isevaluating options for managing the occurrence of unusually high cooling pondtemperatures, no decisions about long term future mitigative actions have been made.List Attachments Provided:None RS-14-029Enclosure BPage 50 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-9 Category: Surface WaterStatement of Question:Provide the application for Clean Water Act Section 401 Certification referenced in Exelon'sletter to the I EPA dated May 18, 2012.Response:The requested document is attached.List Attachments Provided:1. Joint Application Form for Clean Water Act Section 401 Certification related toRenewal of U.S. Nuclear Regulatory Commission Operating Licenses NPR-72and NPF-77 for Braidwood Station Units 1 & 2, May 18, 2012 RS-14-029Enclosure BPage 51 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-13 Category: Surface WaterStatement of Question:As observed and discussed with Exelon staff during the site audit, provide a brief descriptionof the plant water treatment upgrades being implemented at the lake screen house and howthey relate to Braidwood's Lake Chemistry Strategic Plan. Specifically, address whether andhow the quality of water in the cooling pond would be modified as a result of the upgrades.Identify the approximate start date(s) of the construction and when the project(s) isscheduled for completion and commissioning to support plant operations.Response:Physical upgrades to the Braidwood Station water treatment system were completed inDecember 2013. The purpose of the upgrades was to eliminate potential personnelhazards that could occur if there was a chemical spill. The upgrades providedseparation of incompatible chemicals by replacing one chemical feed building with twobuildings. The incompatible chemicals are now pumped from separate chemical feedbuildings. The same chemicals are being used now as were used before the watertreatment system upgrades, and there have been no changes to the Braidwood LakeChemistry Strategic Plan and or to lake water quality.List Attachments Provided:None. RS-14-029Enclosure BPage 52 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-1 Category: Meteorology, Air Quality, and NoiseStatement of Question:Provide the copy of the Braidwood Station Units 1 and 2 (Braidwood) Federally EnforceableState Operating Permit for stationary emission sources provided at the site audit. Indicatewhether correspondence more recent than October 29, 2007, is available regarding thestatus of this permit, and include as applicable.Response:The requested Federally Enforceable State Operating Permit, ID No. 197816AAB isattached. No correspondence with the Illinois Environmental Protection Agency Bureauof Air, Permit Section concerning the renewal application, which was filed on October 30,2006, has occurred since October 29, 2007.List Attachments Provided:1. Federally Enforceable State Operating Permit, ID No. 197816AAB, ExpirationDate: April 29, 2007 RS-14-029Enclosure BPage 53 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-2 Category: Meteorology, Air Quality, and NoiseStatement of Question:Provide copies of Braidwood's annual emission reports for the most recent 5 years.Response:The requested documents are attached.List Attachments Provided:1. 2012 Annual Emission Report for Braidwood Generating Station2. 2011 Annual Emission Report for Braidwood Generating Station3. 2010 Annual Emission Report for Braidwood Generating Station4. 2009 Annual Emission Report for Braidwood Generating Station5. 2008 Annual Emission Report for Braidwood Generating Station RS-14-029Enclosure BPage 54 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-3Category:Meteorology, Air Quality, and NoiseStatement of Question:Identify combustion sources of hazardous air pollutants (HAPs) at Braidwood and amountreleased for the most recent 5 years.Response:Sources of Hazardous Air Pollutants (HAPs) at Braidwood Station are small engines(less than or equal to 600 HP), large engines (greater than 600 HP), and boilers. Thetotal annual quantity of HAPs from these sources at Braidwood is well below the HAPssignificance level of 10 tons per year. Hence, HAPs are not reported for Braidwood.The quantities and heating values of fuel used at Braidwood by these sources arereported in the annual air emissions reports. This information for the most recent 5years for large engines (4 large diesel engines and 2 auxiliary feedwater pumps withlarge diesel engines), boilers (2 auxiliary boilers), and small engines is summarized inthe table below.Auxiliary FeedSmall Engines Large Engines Auxiliary Boilers* Pump DieselEngines2008 516 gal/yr @ 115,474 gal/yr @ 143 gal/yr @ 1,053 gal/yr @137,290 BTU/gal 137,290 BTU/gal 135,081 BTU/gal 137,290 BTU/gal2009 603 gal/yr @ 119,972 gal/yr @ 0.0 gal/yr @ 1,630 gal/yr @137,944 BTU/gal 137,944 BTU/gal 137,944 BTU/gal 137,944 BTU/gal2010 808 gal/yr @ 96,277 gal/yr @ 1,398 gal/yr @ 1,354 gal/yr @137,871 BTU/gal 137,871 BTU/gal 133,481 BTU/gal 137,871 BTU/gal2011 522 gal/yr @ 98,378 gal/yr @ 0.0 gal/yr @ 1,335 gal/yr @137,627 BTU/gal 137,627 BTU/gal 128,485 BTU/gal 137,627 BTU/gal2012 505 gal/yr @ 87,410 gal/yr @ 1,389 gal/yr @ 1,713 gal/yr @136,831 BTU/gal 136,831 BTU/gal 132,473 BTU/gal 136,831 BTU/gal* Unit 1 Auxiliary Boiler did not operate during any year from 2008 through 2012.Source: Braidwood Station Annual Emissions Reports, 2008 through 2012 (see response toRequest for Additional Information Question Met-2) RS-14-029Enclosure BPage 55 of 76The applicable HAPs emission factors (from USEPA, AP-42, Fifthlarge engines at Braidwood are listed below:Edition) for small andSmall Engines Emission Large Engines Emission Boiler Emission FactorFactor (lb/MMBTU) Factor* (lb/MMBTU) (lb/1000 gallons)Benzene 9.33 E-04 7.76 E-04 2.14 E-04Toluene 4.09 E-04 2.81 E-04 6.20 E-03Xylenes 2.85 E-04 1.93 E-04 1.09 E-041,3 Butadiene < 3.91 E-05 No Data No DataFormaldehyde 1.18 E-03 7.89 E-05 3.30 E-02Acetaldehyde 7.67 E-04 2.52 E-05 No DataAcrolein < 9.25 E-05 7.88 E-06 No DataNaphthalene 8.48 E-05 1.30 E-04 1.13 E-03* Applies at Braidwood to Diesel Generators and Auxiliary Feedwater Pump DieselsList Attachments Provided:None RS-14-029Enclosure BPage 56 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-4 Category: Meteorology, Air Quality, and NoiseStatement of Question:Provide details of Braidwood's stationary emission sources including, as applicable,operating hours per year (last 5 years), fuel consumption and rate, horsepower ratings, andcapacity.Response:The requested information is provided in the response to Request for AdditionalInformation Question MET-3.The sources of the requested information are Braidwood Station Annual EmissionsReports, 2008 through 2012, which are provided in response to Request for AdditionalInformation Question MET-2.List Attachments Provided:None RS-14-029Enclosure BPage 57 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-6 Category: Meteorology, Air Quality, and NoiseStatement of Question:Are there expected upgrade/replacement activities for equipment/operation that couldincrease or decrease air emissions over the license renewal period (period of extendedoperation)?Response:There is no expected upgrade or replacement activities that could increase or decreaseair emissions over the license renewal period at Braidwood Station.List Attachments Provided:None RS-14-029Enclosure BPage 58 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-7 Category: Meteorology, Air Quality, and NoiseStatement of Question:Provide the information provided at the site audit addressing site-wide emission inventorydata (annual) for greenhouse gases (GHG) for the most recent 5 years. Also, includeavailable information on emissions from mobile sources (commuters, visitors, deliveryvehicles, etc.)Response:Exelon Generation has adopted a procedure to assist its parent company, ExelonCorporation, in complying with the USEPA's Greenhouse Gases (GHG) program and theISO 14064 Greenhouse Gases-Part 1 specification. In accordance with the procedure,potential direct and indirect GHG sources have been identified for Braidwood Station,and data are collected and submitted to a central corporate database for use inquantifying GHG emissions.For Braidwood Station, the following potential sources of GHG emissions have beenidentified:Direct1 A Diesel Generator1 B Diesel Generator2 A Diesel Generator2 B Diesel GeneratorUnit 1 Auxiliary BoilerUnit 2 Auxiliary BoilerAuxiliary Feedwater PumpSmall Diesel EnginesPropane Fired EnginesC02 purge/FP systemR134a (HFC-134a)SF6 (Sulfur hexafluoride)IndirectElectricity consumptionSupplementalHalon 1211Halon 1301R11 (Trichlorofluoromethane)R22 (Monochlorodifluoromethane)R1 14 (Dichlorotetrafluoroethane) RS-14-029Enclosure BPage 59 of 76The table below summarizes the site-wide Braidwood Station GHG emission inventorydata.Braidwood Station GHG Emissions Summary (2008 through 2012)[GHG C02 Equivalents (metric tons)]20082009201020112012Direct Stationary Combustion 1,164.87 1,213.84 1,022.41 1,028.94 997.72Direct C02 Fugitive 273.85 862.54 1,013.90 1,463.14 1,579.45HFC / PFC Refrigerants 0.00 0.00 0.00 0.00 1,517.22Purchased Electricity 14,928.53 17,656.93 21,629.34 22,112.70 21,625.25Ozone Depleting Refrigerants 4,045.54 1,154.48 1,374.53 1,211.05 9,309.53Operating data (operating hours per year, fuel consumption and rates) for the directcombustion sources can be found in the 2008 through 2012 Annual Emission reports forBraidwood Station, which are provided in the response to Request for AdditionalInformation Question MET-2. The table below presents heat of combustion data andannual fuel usages derived from the data in the Annual Emission reports.Energy ratings are not available for each of the emergency diesel engines due to theage of manufacture. The diesel engines meet the regulatory requirements of theReciprocating Internal Combustion Engine (RICE) Regulations in 40 CFR Parts 60 and63.Braidwood Stationary Combustion Sources Operating DataAuxiliary FeedSmall Engines Large Engines Auxiliary Boilers Pump DieselEngines2008 516 gal @ 137,290 115,474 gal @ 143 gal @ 135,081 1,053 gal @BTU/gal 137,290 BTU/gal BTU/gal 137,290 BTU/gal2009 603 gal @ 137,944 119,972 gal @ 0.0 gal @ 137,944 1,630 gal @BTU/gal 137,944 BTU/gal BTU/gal 137,944 BTU/gal2010 808 gal @ 137,871 96,277 gal @ 1,398 gal @ 133,481 1,354 gal @BTU/gal 137,871 BTU/gal BTU/gal 137,871 BTU/gal2011 522 gal @ 137,627 98,378 gal @ 0.0 gal @ 128,485 1,335 gal @BTU/gal 137,627 BTU/gal BTU/gal 137,627 BTU/gal2012 505 gal @ 136,831 87,410 gal @ 1,389 gal @ 132,473 1,713 gal @BTU/gal 136,831 BTU/gal BTU/gal 136,831 BTU/galSource: Braidwood Station FESOP Annual Emissions Reports for 2008 through 2012. RS-14-029Enclosure BPage 60 of 76Exelon Corporation does not compile or report GHG data for mobile sources, exceptthose under corporate control (fleet vehicles). Within Exelon Generation, GHGemissions from fleet vehicles are tracked through fleet fuel usage. The data are trackedfor the Exelon Generation fleet rather than individual facilities. Therefore, no informationon emissions from vehicles specific to Braidwood Station is readily available.List Attachments Provided:None RS-14-029Enclosure BPage 61 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-8 Category: Meteorology, Air Quality, and NoiseStatement of Question:Provide a description of the primary meteorological tower. Also, describe the backupmeteorological tower if one is present. Include a description of instrumentation installed andheight of installation for each instrument. Describe any changes in land use around the towersites that have occurred since installation that may affect any meteorological sensorperformance.Response:a. The primary meteorological tower is 320 ft high and is instrumented at two levels.Wind speed and direction are measured at 34 ft and 203 ft. Ambient temperature ismeasured at 30 ft. Differential temperature, referenced to 30 ft, is measured at199 ft. Dew point temperature is measured at 30 ft. Precipitation is measured atapproximately 3 ft.Instrument types and locations are described in each Braidwood Station AnnualReport on the Meteorological Monitoring Program, Section 3, copies of which areprovided for 2008 through 2012 in response to Request for Additional InformationQuestion MET-9. The table below summarizes this information for 2012.Measurement Sensor Type Location ElevationWind Speed MRI Model 1022-S Tower 203 ftWind Direction MRI Model 1022-D Tower 203 ftDifferential Temperature MRI Model 1596602 Tower 199 ftWind Speed MRI Model 1022-S Tower 34 ftWind Direction MRI Model 1022-D Tower 34 ftAmbient Temperature MRI Model 1596602 Tower 30 ftDew Point Temperature MRI Model 1993900000 Tower 30 ftPrecipitation Climatronics 100097-1 Ground 3 ftA schematic diagram of the meteorological monitoring instruments from the tower tothe control room is attached to this response (Drawing No. 20E 4031 EM01).b. Records of calibration and maintenance of meteorological instruments, which areconducted by a contractor, are provided in each Braidwood Station Monthly Reporton the Meteorological Monitoring Program. As an example, the monthly report forMarch 2012 is attached.c. Collection, evaluation, validation, and management of meteorological data areperformed by a contractor. An Exelon Generation procedure provides a standardmeans of review by Exelon personnel to verify that the requirements of the OffsiteDose Calculation Manual (ODCM) with respect to these activities are met. RS-14-029Enclosure BPage 62 of 76List Attachments Provided:1. Loop Schematic Diagram Meteorological Monitoring Tower Instruments -"EM"System (Computer & Analog Inputs). Drawing 20E 4031 EM012. Monthly Report on the Meteorological Monitoring Program at the BraidwoodNuclear Generating Station, March 2012. Prepared for Exelon Nuclear by Murrayand Trettel, Inc. May 10, 2012 RS-1 4-029Enclosure BPage 63 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-9Category:Meteorology, Air Quality, and NoiseStatement of Question:Provide the following meteorological information from the data recorded at Braidwood'smeteorological facility. The meteorological data should include the most recent 5 years forwhich the data are available:(a) mean monthly and annual temperatures(b) mean monthly precipitation and annual precipitation(c) Provide seasonal and annual summary wind statistics in the form of wind directionand speed frequency distribution tables and wind roses. Discuss predominantwind direction and speed by season and annual average, local terrain featuresaffecting wind direction and speed, and provide a value for annual average windspeed.(d) Provide seasonal stability class statistics determined from the Braidwoodmeteorological tower in tabular form for the last 5 years.Response:a. Mean monthly temperature data are presented in the Braidwood Station MonthlyReport on the Meteorological Monitoring Program, Section 7. These monthlyreports provide the basis for the Braidwood Station Annual Report on theMeteorological Monitoring Program. The average monthly mean temperaturesand the average annual temperature for the years 2008 through 2012 arepresented in Table 1 below.Table 1Braidwood Station Mean Monthly Temperatures (OF)2008-2012AVERAGEMonthly2008 2009 2010 2011 2012 MeanJanuary 24.4 17.3 20.1 21.5 30.9 22.8February 24.1 30.1 26.1 28.1 33.4 28.4March 36.6 41.6 43.7 39.1 54.3 43.1April 51.4 49.7 57.7 50.3 52.7 52.4May 58.3 62.1 63.3 61.3 66.8 62.4June 72.7 70.0 72.7 71.7 73.5 72.1July 74.1 69.2 77.1 79.4 80.9 76.1August 71.2 69.8 76.4 73.8 73.1 72.9September 66.1 64.4 66.2 62.1 64.4 64.6October 53.2 49.0 56.9 55.5 51.8 53.3 RS-14-029Enclosure BPage 64 of 76AVERAGEMonthly2008 2009 2010 2011 2012 MeanNovember 40.1 46.4 43.3 45.3 31.2 41.3December 24.4 28.1 22.1 35.9 37.1 29.5AVERAGE Annual 49.7 49.8 52.1 52.0 54.2 ____b. Monthly and annual total precipitation data are presented for each year in theBraidwood Station Annual Report on the Meteorological Monitoring Program,Table 12. The mean monthly and annual total precipitation during 2008 through2012 are summarized in Table 2 below. Copies of the annual reports areattached.Table 2Braidwood Station Monthly and Annual Precipitation Totals and Means (inches)*2008-20122008 2009 2010 2011 2012 MEANJanuary 0.50 0.58 1.00 0.60 1.96 0.93February 1.61 3.2 1.10 2.86 1.83 2.12March 1.19 2.82 2.52 1.47 1.31 1.86April 1.55 6.21 3.58 5.97 1.42 3.75May 3.25 6.21 4.77 5.54 4.85 4.92June 3.06 6.83 7.70 4.87 2.44 4.98July 3.27 2.67 2.23 1.26 0.74 2.03August 1.09 4.6 1.29 3.34 5.52 3.17September 11.65 1.23 3.82 3.74 2.89 4.67October 2.27 8.28 1.62 1.27 4.10 3.51November 0.34 1.47 2.01 3.22 1.00 1.61December 3.60 2.95 2.57 2.57 2.57 2.85ANNUAL 33.38 47.05 34.21 36.71 30.63 36.40* Some data are missing -- actual precipitation may be under-reported.c. Seasonal and annual summary wind statistics in the form of wind direction andspeed frequency distribution tables and wind roses are provided by season andfor the year in each Braidwood Station Annual Report on the MeteorologicalMonitoring Program, Tables 7 through 11. Copies of the annual reports for theyears 2008 through 2012 are attached.Table 3 below presents the predominant quarterly and annual wind speeds anddirections at the 30-ft level for the years 2008 through 2012. The predominantwind direction at the Braidwood site was west for three of the five years from2008 through 2012. Slight seasonal variations are evident from the data, but thewind speed falls into either the 3.6 to 7.5 mph wind speed class or the 7.6 to 12.5mph wind speed class most of the time, with the 3.6 to 7.5 mph class prevailing RS-14-029Enclosure BPage 65 of 76slightly on an annual basis. The Braidwood Station Annual Report on theMeteorological Monitoring Program does not calculate an average yearly windspeed. However, the data suggest it to be around the midpoint between 3.6 mphand 12.5 mph, which is approximately 8.1 mph.The most important factor affecting the local meteorology near the Braidwoodsite is the presence of the cooling pond. The influence of the cooling pond on thelocal meteorology is greatest during the winter season, when the temperaturedifferential between the pond and the air mass is a maximum, and during certainclimatological conditions when the difference between the saturation vaporpressure and actual vapor pressure of the atmosphere is very small.Braidwood is at an elevation of 600 ft above mean sea level (MSL) and is thehighest point within a five-mile radius of the site. The lowest points within 5 milesof the site are approximately 550 ft above MSL. Terrain in the vicinity of the plantfalls off except from northeast through the south-southeast directions. The slopefrom the plant to the lower points is gradual. There is no significant effect oftopography on atmospheric dispersion due to the flat nature of the area.d. Seasonal and annual summary wind stability statistics are provided by seasonand for the year in each Braidwood Station Annual Report on the MeteorologicalMonitoring Program, Tables 7 through 11. Copies of the annual reports for theyears 2008 through 2012 are attached. Table 4 below presents the predominantquarterly and annual wind stability classes based on the 199-30-ft differentialtemperature as well as the corresponding predominant wind direction at 30 ft forthe years 2008 through 2012.Stability based in the 199-30 ft. differential temperature for all years from 2008through 2012 and all seasons, except fall (Quarter 3), most frequently fell into theneutral classification. During the fall season (Quarter 3), stability most frequentlyfell into the slightly stable classification for all years.Table 3Braidwood Station Predominant Wind Speed (miles/hr) and Direction (at 30 ft)2008 to 20122008 2009 2010 2011 2012Speed Direction Speed Direction Speed Direction Speed Direction Speed Direction1st Qtr 7.6-12.5 WNW 3.6-7.5 WNW 3.6-7.5 W 3.6-7.5 WNW 7.6-12.5 WNW2nd Qtr 7.6-12.5 S 3.6-7.5 NE 3.6-7.5 W 3.6-7.5 NE 3.6-7.5 NE3rd Qtr 3.6-7.5 WSW 3.6-7.5 ENE 3.6-7.5 S 3.6-7.5 NNW 3.6-7.5 S4th Qtr 3.6-7.5 S 3.6-7.5 WSW 29.93 WNW 3.6-7.5 S 3.6-7.5 SAnnual 3.6-7.5 W 3.6-7.5 WNW 3.6-7.5 W 3.6-7.5 W 3.6-7.5 S% of Total 39.13 10.08 42.28 9.41 44.26 10.03 41.97 8.62 41.78 10.00 RS-14-029Enclosure BPage 66 of 76Table 4Braidwood Station Wind Stability Class Distribution (percent) Based on 199-30 ftTemperature Differential and Predominant Wind Direction (at 30 ft)2008 to 2012Stability Class 2008 Qtr 1 2009 Qtr 1 2010 Qtr 1 2011 Qtr 1 2012 Qtr 1Wind Wind Wind Wind WindDirection Direction Direction Direction DirectionExtremely Unstable WNW 4.56 WNW 6.94 NW 6.61 WNW 5.85 WNW 6.37Moderately Unstable W/WNW 2.26 W 4.89 W 3.72 NW 3.60 SSW 4.94Slightly Unstable W 4.64 S 5.07 W/NW 4.10 W 5.38 W 5.54Neutral WNW 57.95 WNW 42.13 W 41.81 WNW 50.98 WNW 48.08Slightly Stable S 25.45 WNW 32.36 WNW 31.94 SW 29.79 S 24.85Moderately Stable W 4.75 WSW/W 7.08 W 10.01 W 4.07 W 8.27Extremely Stable SW 0.42 ENE 1.44 WNW 1.68 WNW 0.19 SSW 1.85Stability Class 2008 Qtr 2 2009 Qtr 2 2010 Qtr 2 2011 Qtr 2 2012 Qtr 2Wind Wind Wind Wind WindDirection Direction Direction Direction DirectionExtremely Unstable NNW 8.75 W 13.83 WNW 16.40 W 13.67 SSW 21.54Moderately Unstable S/W 6.24 W 5.57 SSW 5.70 NE 4.70 NE 5.71Slightly Unstable S 6.33 NNE/NE 5.15 W 5.98 S 4.88 NE 4.41Neutral S 35.27 NE 33.70 NE 32.71 NNE 41.26 NE 28.41Slightly Stable S 32.15 S 30.69 S 31.07 S 28.37 S 27.48Moderately Stable W 8.14 WSW 7.52 WNW 6.03 W 4.84 ESE 9.84Extremely Stable W 3.12 W 3.20 W 1.96 ENE 2.19 ENE 2.51Stability Class 2008 Qtr 3 2009 Qtr 3 2010 Qtr 3 2011 Qtr 3 2012 Qtr 3Wind Wind Wind Wind WindDirection Direction Direction Direction DirectionExtremely Unstable W 18.43 NE 20.39 WNW 22.04 WSW 19.37 SSW 19.51Moderately Unstable W 6.47 ENE 5.47 SSW/SW 4.44 N 6.46 W 6.42Slightly Unstable SSE 4.60 NNE/SSE/W 3.85 S 5.32 NNW 5.47 N/SSW 6.38Neutral SW 23.22 ENE 25.21 SW 20.23 NNW 24.24 NNW 22.20Slightly Stable WSW 24.72 ENE 28.08 S 33.01 ENE 28.08 S 27.35Moderately Stable E 16.46 W 12.42 1.34 11.16 E 11.32 W 12.66Extremely Stable E 6.10 WNW 4.59 W 3.61 ENE 4.91 WSW 5.20 RS-14-029Enclosure BPage 67 of 76Stability Class 2008 Qtr 4 2009 Qtr 4 2010 Qtr 4 2011 Qtr 4 2012 Qtr 4Wind Wind Wind Wind WindDirection Direction Direction % Direction % Direction %Extremely Unstable NW 3.87 W 4.19 WNW 4.84 S 3.55 SSW 2.91Moderately Unstable W 4.30 SSW/W 2.81 WSW 3.42 W 3.59 W 1.79Slightly Unstable W 5.19 SSE 2.85 SW 4.47 SSW 4.38 SSW 3.34Neutral W 46.79 WSW 55.11 W 35.45 S 45.02 WNW 44.19Slightly Stable S 29.13 S 28.36 SSE 30.16 S 31.75 S 39.82Moderately Stable WSW 8.22 WNW 4.79 WSW 12.73 WSW 7.97 ESE 6.21Extremely Stable WSW 2.50 NE 1.89 W 8.80 SE 3.73 E/ESE 1.74Stability Class 2008 Annual 2009 Annual 2010 Annual 2011 Annual 2012 AnnualWind Wind Wind Wind WindDirection Direction % Direction % Direction % DirectionExtremely Unstable W 8.91 WNW 11.3 WNW 12.44 W 10.59 SSW 12.58Moderately Unstable W 4.82 W 4.68 SSW 4.32 W 4.58 SSW 4.72Slightly Unstable W 5.18 WNW 4.23 W 4.97 W 5.03 SSW 4.92Neutral W 40.77 WNW 39.06 W 32.55 NNE 40.40 WNW 35.77Slightly Stable S 27.87 S 29.87 WNW 31.54 S 29.51 S 29.85Moderately Stable WSW 9.40 W 7.95 W 10.00 W 7.05 ESE 9.24Extremely Stable E 3.04 ENE 2.78 W 4.04 W 2.76 WSW 2.81List Attachments Provided:1. Annual Report on the Meteorological Monitoring Program at the BraidwoodNuclear Power Station, 2008. Prepared for Exelon Nuclear by Murray and Trettel,Inc. April 18, 20092. Annual Report on the Meteorological Monitoring Program at the BraidwoodNuclear Power Station, 2009. Prepared for Exelon Nuclear by Murray and Trettel,Inc. March 31, 20103. Annual Report on the Meteorological Monitoring Program at the BraidwoodNuclear Power Station, 2010. Prepared for Exelon Nuclear by Murray and Trettel,Inc. April 24, 20114. Annual Report on the Meteorological Monitoring Program at the Byron NuclearPower Station, 2011. Prepared for Exelon Nuclear by Murray and Trettel, Inc.August 08, 20125. Annual Report on the Meteorological Monitoring Program at the Byron NuclearPower Station, 2012. Prepared for Exelon Nuclear by Murray and Trettel, Inc.April 25, 2013 RS-14-029Enclosure BPage 68 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-1Oa Category: Meteorology, Air Quality, and NoiseStatement of Question:Provide the information provided at the site audit addressing:(a) Has an atmospheric warming trend been observed in the vicinity ofBraidwood during the period of plant operations? Provide data to support theconclusions reached (e.g., mean daily maximum annual temperatures, meandaily minimum annual temperatures, or mean annual temperature for theavailable period of record from Braidwood's meteorological station).Response:A table listing average monthly temperatures (IF) measured at the Braidwood StationMeteorological Tower (30-ft elevation) for the period from November 1973 throughNovember 2013 is attached. Based on assessments using cumulative moving averageand simple moving median calculations, a slight upward trend in annual averagetemperature at the Braidwood Station Meteorological Tower was observable for this dataset. However, Exelon Generation cannot conclude from these observations, whichrepresent only one location, whether any atmospheric warming trend has been observedin the region surrounding Braidwood.List Attachments Provided:1. Braidwood Station Meteorological Tower -Average Monthly Temperatures, 30'Elevation. November 1973 through November 2013. RS-14-029Enclosure BPage 69 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-1ObCategory:Meteorology, Air Quality, and NoiseStatement of Question:Provide the information provided at the site audit addressing:(b) Has a river warming trend been observed in the Kankakee River during theperiod of plant operations? Provide any study(s) or data that support theconclusions reached (e.g., mean annual, seasonal, and/or monthly watertemperature trend for the period of record).Response:Table MET-1Ob is attached listing average monthly temperatures (OF) measured at theBraidwood Station River Screen House intake structure for the periods from Januabry2002 through August 2008 and from January 2011 through December 2013. Based onassessments of these data using cumulative moving average and simple moving mediancalculations, no warming trend in annual average temperature is observable.The nearest U.S. Geologic Survey (USGS) gaging station (05527500) on theKankakee River with temperature data is at Wilmington, IL, approximately 14 km(8 mi) downstream of the Braidwood discharge. The following table identifies thetemperature data collected at that gaging station. Because the data areintermittent with long time gaps and because the collection methodologies arevaried and inconsistent, the data are not comparable and cannot be used toperform a trend analysis.Type of data Time period Notes15-min intervals water year 2012-present provisional data(Sept 2012 -October 2013)single 2009 -present Collected as part of procedure for monthly watertemperature;recorded monthly quality grab samplesnone 1992-2009single 1977 -1991 Collected as part of procedure for monthly watertemperature;recorded monthly quality grab samples"water water years Probably collected continuously at the gaging stationtemperature" 1973 -1977none previous to 1973Braidwood Unit 1 began commercial operation on 29 July 1988 followed by Unit 2 on17 October 1988. Since that time, a fish monitoring program has been conducted forBraidwood Station with fish sampling during August each year. Physicochemical dataare collected during the sampling events, including river temperature measurements, but RS-14-029Enclosure BPage 70 of 76no database of the measurements has been created. The most recent report for theAugust 2012 sampling indicates that during August 2012, water temperature rangedfrom 23.3 0C (73.9 OF) on August 22 to 29.5 0C (85.1 OF) on August 8. Watertemperatures were warmer during the first sampling period due to an extended period ofunusually warm air temperatures in July and early August. Even so, thephysicochemical data collected in 2012 were similar to values reported during previousyears of these studies. Each of the measured water quality parameters observed waswell within the range of values capable of supporting a healthy fishery.List Attachments Provided:1. Table MET-10b: Braidwood Station -Average Monthly Kankakee River Water IntakeTemperatures (OF), 2002 to 2008 and 2011 to 2013. RS-14-029Enclosure BPage 71 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET-12 Category: Meteorology, Air Quality, and NoiseStatement of Question:Provide information about any noise complaints for the most recent 5 years resulting fromplant operation.Response:During the investigation to determine whether new and significant information exists withrespect to license renewal environmental issues categorized in the GenericEnvironmental Impact Statement for Nuclear Plant License Renewal (GELS) asCategory 1, three Braidwood Station staff members were interviewed regarding noiseissues. The interview forms are attached to this response. All three staff membersindicated that occasional complaints about plant noise have been received over theyears.In 2010, significant complaints regarding noise associated with venting of main steamvalves during a dual plant shutdown were received. Neal Miller, the BraidwoodCommunications Manager, explained during the interview that it has been the plant'spractice since then to provide prior notice to members of the public of plant activities thatcould cause noise. This practice, along with installation of a subsurface diffuser at theriver discharge, has nearly eliminated noise complaints during subsequent years.List Attachments Provided:1. Staff Interview Form, New and Significant Information Identification Process,Issue 58. Noise. RS-14-029Enclosure BPage 72 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: MET- 15Category:Meteorology, Air Quality, and NoiseStatement of Question:Identify nearby noise-sensitive receptors (e.g., residences, school, nursing home, childcarefacility) and distance to those receptors.Response:Land use surveys are conducted annually in the vicinity of Braidwood Station andreported in the Annual Radiological Environmental Operating Report, in accordance withthe Braidwood Station Offsite Dose Calculation Manual. Among other things, thesurveys document the nearest residence in each of the sixteen 22.5-degree sectorsaround the site. In 2012, residences were reported at the distances from BraidwoodStation listed below.Distance in Miles from Braidwood Station Reactor BuildingsSector Distance to Sector Distance toNearest NearestResidence (mi) Residence (mi)N 0.5 S 4.2NNE 0.9 SSW 1.3NE 0.7 SW 0.4ENE 0.8 WSW 0.5E 1.5 W 0.4ESE 2.2 WNW 0.4SE 2.7 NW 0.4SSE 4.5 NNW 0.4Schools and libraries known to be located within 2 miles of Braidwood Station are:Braidwood Elementary School -1.5 miReed-Custer Middle School -1.3 miReed-Custer High School -1.5 miFossil Ridge Public Library -1 miNo other noise-sensitive receptors are known to be located within 2 miles of BraidwoodStation.List Attachments Provided:None RS-1 4-029Enclosure BPage 73 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: ALT-1 Category: AlternativesStatement of Question:Provide a copy of the calculation packages referenced in Section 7 of the ER as Tetra Tech2012d, Air Emissions and Solid Waste from Coal- and Gas-Fired Alternatives for BraidwoodUnits 1 and 3; Chapter 7 Energy Alternatives Calculation Package, September 19, 2012; andTetra Tech 2012e, Employment and Land Requirements for Alternatives to Byron Units 1and 2 and Braidwood Units 1 and 2, LR Chapter 7 Energy Alternatives Calculation Package,September 18, 2012.Response:The requested documents are attached.List Attachments Provided:1. Tetra Tech 2012d; Air Emissions and Solid Waste from Coal- and Gas-FiredAlternatives for Braidwood Units 1 and 3; Chapter 7 Energy Alternatives CalculationPackage, September 19, 20122. Tetra Tech 2012e, Employment and Land Requirements for Alternatives to ByronUnits 1 and 2 and Braidwood Units 1 and 2, LR Chapter 7 Energy AlternativesCalculation Package, September 18, 2012 RS-14-029Enclosure BPage 74 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: R-1 Category: RefurbishmentStatement of Question:Clarify the factors influencing whether Unit 2 steam generator replacement would occur andwhether this hypothetical activity should be considered refurbishment. Also briefly describecontributing factors discussed during the audit (i.e., water chemistry program and improveddesign features of Unit 2 steam generator).Response:The Braidwood Unit 2 steam generators tubes are fabricated from thermally treated Alloy600 (A600TT) tubing. Industry documents and experience indicates that A600TT tubingis subject to cracking and corrosion during the original lifetime of the steam generators.Braidwood Unit 2 has experienced tube cracking in high stress tubing and at the tubeend welds. The tube end cracking has been addressed and is not an issue. Tubecracking in other areas, such as top of the tubesheet, tube support plate intersections,freespan, U-bend regions and dents are predicted to occur and possibly impact a 60year service life of the steam generators. While a global degradation mechanism hasnot occurred in the Braidwood Unit 2 steam generators, it is a high probability that sucha mechanism would initiate in the future because, as the units age, the steam generatorsbecome more susceptible to various degradation mechanisms that have not yet beenexperienced and existing degradation mechanisms may accelerate or progress.Therefore, long term management plans have been revised to show the possibility forsteam generator replacement within approximately 10 years for Braidwood Unit 2. Thedates may be adjusted based on the actual degradation initiation rates yet to beexperienced.Exelon Generation maintains a Steam Generator Inspection Program, which addressesexisting and potential degradation mechanisms of the Braidwood Unit 2 steamgenerators such as tube wear, baffle plate/support plate wear, and tube sheet corrosionand scaling. To reduce the potential for stress corrosion cracking , other measures havebeen implemented including reduction of the primary coolant hot leg temperature,changing the material used for mechanical tube plugs to a more corrosion resistant alloy,implementation of secondary water chemistry molar ratio control, and implementation ofprimary zinc addition. An inspection program has also been implemented at BraidwoodUnit 2 to look for stress corrosion cracking or other degradation mechanisms that mayimpact the integrity of the tubes so that degraded tubes can be removed from service.Periodic sludge lancing and inspection of the secondary side of the steam generator isperformed. Chemical cleaning and on-line dispersant addition are actions being taken tomitigate corrosion by reducing tube deposits, hard scale, tube fouling, blocked quatrefoilflow holes and detrimental crevice chemistry. Present experience at Braidwood Unit 2has shown manageable levels of degradation that are not expected to impact long-termhealth of the steam generators. Notwithstanding, repair and replacement options arebeing investigated as final options for mitigating steam generator degradation. RS-1 4-029Enclosure BPage 75 of 76Exelon Generation chose to assess in the Braidwood License Renewal ER impacts ofpossible steam generator replacement because the decision to replace the Unit 2 steamgenerator will ultimately depend on the success of the other mitigation measures andmonitoring already in progress to address "degradation mechanisms" (i.e., aging). Thelink between the potential steam generator replacement and plant aging mechanisms, inconjunction with the possibility that the potential replacement might be needed at a timeroughly coincident with the end of the current licensed term for Braidwood suggestedthat an analysis of the replacement activity as hypothetical refurbishment would beprudent.List Attachments Provided:None RS-14-029Enclosure BPage 76 of 76Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: R-2 Category: RefurbishmentStatement of Question:In support of NRC's analysis of the impacts of Unit 2 steam generator replacement, clarify:(a) How many temporary or permanent buildings will be constructed to support steamgenerator replacement activities?(b) What is the estimated footprint (ft) of new buildings to be constructed? What isthe estimated depth of excavation?Response:a.) The only building likely to be constructed to support Unit 2 steam generatorreplacement activities is the storage building for the old steam generators.Temporary office trailers may be staged near the construction site.b.) The estimated footprint (ft2) of the new Unit 2 steam generator storage buildingwould be approximately 7,000 ft2.The footings will extend about 4 ft beyond thebuilding walls making the footprint of the structure approximately 8,500 ft2.Thebuilding would also have an entrance vestibule that would occupy approximately200 ft2.The estimated depth of the excavation would be approximately 4 ft.The building plan drawing for the existing Unit 1 steam generator storage buildingis attached to this response as an example of the likely design if a Unit 2 steamgenerator storage building were built.List Attachments Provided:1. ComEd Drawing S-2000, Old Steam Generator Storage Facility. Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-5a Category: Cultural ResourcesStatement of Question:Related to Exelon's environmental review procedures for land-disturbing activities,please provide:(a) A description of how inadvertent historical or cultural discoveries on theBraidwood Nuclear Station (Braidwood) site are considered by Exelon staff.Response:If cultural, historic or paleontological resources are uncovered during an ongoingexcavation at the Braidwood Station, the work would be stopped, appropriatenotifications would be made, a cover would be positioned to protect the exposedresources from the elements, access to the area would be controlled with barriers and/orsigns, and work would not resume until authorized by Environmental personnel. Also,Environmental personnel would coordinate the salvage or disposition of any recoveredresources.List Attachments Provided:None. Exelon GenerationRS-1 4-029Enclosure CHard Copies of Response Sheets PlusOther Relevant Documents Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-5b Category: Cultural ResourcesStatement of Question:Related to Exelon's environmental review procedures for land-disturbing activities,please provide:(b) A list of Exelon's environmental procedures and a short description of their purpose.Response:A short description of each Exelon Generation procedure pertinent to land-disturbingactivities is provided below.1. EN-AA-103, Environmental ReviewThis procedure provides a process for screening proposed activities to determineif an activity requires further evaluation for environmental impacts and risk.Activities to be screened include, but are not limited to:" Engineering Configuration Changes" Initiatives" Maintenance Activities* Operational Changes* Procedure /T&RM Changes* Other Site / Non-Generating Facility Activities.Activities are reviewed against a list of activities known to require furtherevaluation for environmental impacts and risk. If an activity is on the list, furtherevaluation is initiated.2. EN-AA-103-0001, Environmental EvaluationsThis procedure provides guidance on performing further environmentalevaluations to identify the environmental and regulatory impacts (includingimpacts on known or potential cultural and historical resources), if any, ofproposed activities. If an environmental evaluation concludes thatimplementation of a proposed activity would result in an unacceptableenvironmental condition or risk, then the proposed activity will not beimplemented until the environmental impact(s) is / are addressed.4. SA-AA-1 17, Excavation, Trenching, and ShorinqThis procedure provides instructions on safe work practices for excavating,trenching, and shoring, including instructions on actions to be taken if cultural,historic, or paleontological resources are uncovered during an activity involvingexcavation or trenching.List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-6Category:Cultural ResourcesStatement of Question:Related to the cultural resource management plan (Section 4.19 of the Environmental Report(ER)), provide a description of how a proposed activity on the Braidwood site is evaluated forcultural resource impacts by the Chemistry Manager (or designee).Response:Proposed activities at Braidwood are subject to a screening process to determinewhether further evaluation for environmental impacts and risk is warranted (EN-AA-103).When warranted, the responsible individuals will request further environmental review byEnvironmental personnel. Environmental personnel assigned to prepare anenvironmental evaluation of impacts to archeological or cultural resources would takethe following steps, as indicated in the cultural resources management plan:1. Determine whether the actual or potential environmental impacts of theactivity are bounded by the environmental basis for the nuclear power plant,as delineated in EN-AA-103-0001. If the actual or potential impacts ofexcavation associated with the activity are not bounded by the environmentalbasis, then continue with the following steps. Otherwise, the activity mayproceed with no further action.2. Determine whether the proposed land-disturbing activity occurs within anexcluded area (i.e., an area that has been previously disturbed byconstruction activities). If YES, then the activity may proceed with no furtheraction. If NO, then the following additional steps would be taken.3. A Cultural Resource Environmental Review Form, would be completed.4. If, after completing the Cultural Resource Environmental Review Form, theevaluator determined that the proposed land-disturbing activity would neitheroccur in a culturally protected area as defined in the Cultural ResourcesManagement Plan, nor result in significant noise, air, or visual impacts torecorded cultural resources, then the activity would proceed.5. If, after completing the Cultural Resource Environmental Review Form, theevaluator determined that the proposed land-disturbing activity would eitheroccur in a culturally protected area, or cause significant noise, air, or visualeffects that impact recorded cultural resources, then an effort would be madeto identify a way to avoid the impacts.6. If no practical alternative is available, then consultation would be initiated withthe State Historic Preservation Officer (SHPO) to determine what measureswould be needed to avoid or minimize impacts to culturally protected areas ora recorded cultural resource.7. Any plans or measures resulting from consultation with the SHPO would beincorporated into the work plan for the land-disturbing activity.List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-7 Category: Cultural ResourcesStatement of Question:Provide a description of Braidwood's transmission line management plan, including: timing ofactivities; danger tree removal and other clearing; inspections and repair activities conductedby ground vehicles; standard operating procedures or guidelines for the applicant and anycontractors; erosion control procedures; technician training programs; and any regulationsthat restrict maintenance activities (e.g., looking for activities that could affect depth ofdisturbance, if any disturbance is necessary along the corridor).Response:In the Braidwood Station License Renewal ER, Exelon Generation applied the NRCregulations and guidance that were in effect at the time the Byron and BraidwoodLicense Renewal Application (LRA) was submitted (May 2013) to define for whichtransmission lines environmental impacts should be analyzed. Under the previousregulations and guidance, the in-scope transmission lines for Braidwood license renewalincluded the transmissions lines that were constructed with the station to connect it tothe regional electricity grid. Such lines, which are all owned and operated by CoinEd,are identified in the Braidwood License Renewal ER as follows:Braidwood-to-Crete (retired) Transmission Line (345-kV line on double-circuittowers)In June 2013, after the Byron and Braidwood LRA was submitted, the NRC finalizedregulations that changed the requirements and guidance defining which transmissionlines would be within the scope of license renewal environmental review. Under the newregulations, in-scope transmission lines are defined as transmission lines that connectthe nuclear power plant to the substation where electricity is fed into the regional powerdistribution system and transmission lines that supply power to the nuclear plant fromthe grid. This definition is further explained in the Statement of Considerations for thefinal rule, which states that 'those transmission lines that would not be impacted by alicense renewal decision (i.e., those lines that would not be dismantled or otherwisedecommissioned as a result of a plant terminating operations because its operatinglicense had not been renewed) are considered beyond the scope" for the licenserenewal environmental review. (78 Federal Register 37296 -37297; June 20, 2013)Because the NRC will now apply the new regulations to define the scope of transmissionlines for which environmental impacts are analyzed in the License RenewalSupplemental Environmental Impact Statement for Braidwood Station, ExelonGeneration has revisited its original evaluation of the in-scope lines. Electricitygenerated at Braidwood Station is transformed from generator voltage to a nominal 345-kV transmission system voltage by the main power transformers. The main powertransformers are connected via intermediate, on-site transmission lines to the on-site345-kV Braidwood Station switchyard. The location of the intermediate transmissiontowers on the site property is shown in Braidwood UFSAR, Figure 8.2-7. For ease ofreference, a copy of the figure is attached to this response. Based on this informationand that there are no other transmission lines that would be dismantled or otherwisedecommissioned as a result of terminating operations at Braidwood, Exelon concludes that, under the new regulations, the intermediate, on-site transmission lines are the onlyin-scope transmission lines for the Braidwood license renewal environmental review.These transmission lines are located entirely within previously disturbed areas on theBraidwood site. Grounds management practices for those areas are described in theresponse to Request for Additional Information Question CR-8.List Attachments Provided:1. UFSAR, Revision 8, Figure 8.2-7, Property Plan REVISION 8DECEMBER 2000EASTMAIN COOLING PONDUNITTOLA SALLE.OVERFLOW SPILLWAYW woo 2000 m 000 3 AmSCALESRAIDWOOD STATIONUPDATED FINAL SAFETY ANALYSIS REPORTFIGURE82-7PROPERTY PLAN Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-8 Category:, Cultural ResourcesStatement of Question:Provide information on management of the land around less-developed areas of the plantsite, especially near known historic and cultural resources or near unsurveyed areas.Response:Vegetation control at Braidwood is the responsibility of the Facilities MaintenanceDepartment (FMD). The following guidelines are used for consistency in this activity;Regular -Grassy areas inside and outside of the Protected Area (PA) aregenerally mowed on a regular basis to maintain a height of 5" or less. (NewTraining Building (NTB), facility entrance roadway, and areas around the parkinglots.)Secondary- There is procedural guidance for mowing of the Owner ControlledAreas (OCA) through Security procedure SY-BR-1 01-113, section 4.2, whichdirects the maintenance of specific heights of grass in particular areas basedupon the Attachment 3 map. Security supervision contacts FMD if the vegetationheight threatens the ability of Security to maintain proper vigilance of the facility.FMD and Security personnel tour these areas as needed to discuss possibleissues or special requests. (drainage ditches, near security equipment)Outlying -Areas that are of less significance to Security and the overallasthetics of the site, but warrant some degree of vegetation control for workaccess, security inspections, or noxious weed control. These areas have a goalof being mowed twice per year. (Meteorological Tower, cooling lake roads,sample well access roads)Blowdown- the Blowdown line to the River Screen House (RSH) area roadmowing goal is once per year. Typically the areas around Blowdown valvestations and sample wells are done once a year or as requested to supportmaintenance.* Less Developed -Less developed areas of the Owner Controlled Areas (OCA)are given attention as requested. Tree and shrub removal is completed asneeded, or as directed to ensure proper cooling lake dike integrity.Note: The frequency of mowing activities is subject to weather conditions, emergent andscheduled work activities, plant priorities, and FMD personnel availability.Note: Known historic and cultural resourses on the Braidwood site are not maintained inany way differently than any of the other landscape in the immediate surrounding area. List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-13 Category: Cultural ResourcesStatement of Question:Does Exelon conduct cultural resource training at Braidwood? If so, provide anydocumentation of cultural resource training required for staff.Response:Cultural resources training is not currently required for Braidwood staff members.List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-19 Category: Cultural ResourcesStatement of Question:Provide the breakdown (in percentages) of land use (i.e., industrial, agricultural, woodland,etc.) for the Braidwood site. Include leased land.Response:The Braidwood Station occupies approximately 4,457 acres of land [Braidwood ER, sec.2.1, p. 2-3]. On-site land uses include:2,540 acres Water264 acres Industrial (including makeup/blowdown pipeline and river screenhouse67 acres Agricultural1,280 acres Former strip mine areas leased for recreation306 acres Former strip mine and revegetated areas not used for recreationList Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: CR-20 Category: Cultural ResourcesStatement of Question:Provide information regarding management of the land leased by Exelon associated with theBraidwood site to public or private entities -is Exelon managing this land, or is managementleft to the lessee with oversight by Exelon?Response:The Braidwood Station occupies approximately 4,457 acres of land. Approximately 67acres (1.5 percent) of the total land area occupied by the Braidwood Station are leasedfor agricultural use. An additional 3,820 acres (85.7 percent), including a large portion ofthe cooling pond, are leased for recreational purposes.Regarding control of leased land within the Braidwood site, Exelon Generation generallyretains an unrestricted right to enter, use, and dispose of the leased land for its businesspurposes and in the event of emergencies. Also, subleases are not allowed, and leasestypically restrict use of the leased land solely to a designated purpose, such as forrecreational purposes, for farming and agricultural purposes, for cultivating crops, and/orfor pastureland. In addition, some leases may prohibit certain specific activities on theleased land, such as removing top soil, changing the original ground grade level, alteringthe natural water drainage pattern, and installing irrigation systems. Some leases mayrequire Exelon Generation's prior review and approval for construction or installation ofany improvements on the leased land.List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-1Category:SocioeconomicsStatement of Question:Provide updated permanent workforce data, preferably a residential distribution of permanentworkforce by county in table format.Response:The table below provides an updated distribution of permanent workforce by county inIllinois.County Permanent WorkforceBloomington 1Cook 36DeKalb 1DuPage 37Ford 3Grundy 216Iroquois 8Kane 4Kankakee 95Kendall 26Lake 3LaSalle 31Livingston 31Mclean 2Will 356Counties Not In Illinois 6County Not Listed 29Total 885List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-2Category:SocioeconomicsStatement of Question:Provide updated property tax information, similar to the data provided in Tables 2.7-2 and2.7-3 of the ER. Include data for the years 2011 and 2012, if available.Response:Data provided below were collected from Will County and the Claypool Drainage District.Table SOC-2.1CombinedProperty Tax Payment Comparison, All Taxing DistrictsBraidwoodStation PaymentTotal Combined Braidwood Station as percent ofTaxing District Levy Property Tax Total DistrictYear -Will County ($) Payment ($) Levy (%)2011 1,624,892,431.55 20,548,423.30 1.262012 1,685,592,470.84 24,548,764.24 1.46Table SOC-2.2 Property Tax Payment Comparison, Reed-Custer School District255-UBraidwoodReed-Custer School StationDistrict 255-U Payment asPortion of percent ofTotal Reed-Custer Braidwood Station Reed-CusterSchool District 255- Property Tax School DistrictYear U Extended Levy ($) Payment ($) 255-U Levy (%)2011 20,141,090.91 13,594,795.15 672012 21,476,914.64 16,039,297.36 75List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-3 Category: SocioeconomicsStatement of Question:Braidwood's last settlement agreement was signed on March 12, 2008 and covered taxyears 2007 through 2011. What is the status of the settlement agreement for current andfuture years? Has Exelon entered into a new settlement agreement with Will County andother taxing districts to set the equalized assessed value (EAV) of Braidwood for tax years2012 and beyond? Provide any relevant information.Response:Exelon Generation and the taxing bodies have not entered into another settlementagreement, although the Company is in active negotiations with the Will CountyAssessor at this time. The Will County Assessor set the equalized assessed value(EAV) for the 2012 tax year at $470 million. Exelon Generation believes the higher EAVovervalues Braidwood Station because an independent appraiser set the 2012 value ofthe station at $2 billion, which equates to an EAV of approximately $333.3 million. Onthis basis, Exelon Generation appealed the 2012 assessment to the Will County Boardof Review. Upon an unfavorable ruling by the Board of Review, Exelon Generation thenappealed the 2012 assessment to the Illinois Property Tax Appeal Board. For 2013, theWill County Assessor set the EAV at $470M (no change from 2012). Exelon Generationappealed to the Will County Board of Review. The Company will continue to negotiatewith the assessor and with the taxing bodies to attempt to reach a settlement agreement,and in its absence, will appeal any assessment that does not reflect a fair valuation ofthe plant. However, pending the outcome of such actions, Exelon Generation has paidthe tax assessed for 2012 (an increase of more than $3 million over the prior year).[Note that this was the EAV set by the assessor just for the three power block PropertyIdentification Numbers (PINs) combined, while Exelon Generation actually pays taxes on78 parcels at the Braidwood Station. The total taxes paid by Exelon Generationidentified in Table SOC-2.1 includes taxes for all of the PINs.]List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-4 Category: SocioeconomicsStatement of Question:In accordance with the 2008 settlement agreement, Exelon agreed to make payments inaddition totaxes (PIATs) to specific tax recipients. Under the agreement, Exelon made PIATpayments of $37,711,150 for tax year 2007 (paid in 2008) and $3,643,566 for tax year 2008(paid in 2009). Have there, or will there be, additional PIATs in the future? Were PIATs paidin 2010 and 2011 for tax years 2009 and 2010? If so, have there been any changes to thelist of recipients or proportion of payments in ER Table 2.7-1? Provide any relevantinformation.Response:The negotiations with the taxing bodies that receive taxes for Braidwood Station are inthe early stages, and Exelon Generation cannot confirm or rule out the future use ofPIAT payments as part of any settlement agreement. No PIATs were paid in 2010 or2011 for the tax years 2009 or 2010. If PIATs become part of any future settlementagreement, Exelon Generation expects the list of recipients would be the same as thoselisted in ER Table 2.7-1 because those are the taxing bodies that levy tax on the threepower block Property Index Numbers (PINs). The settlement agreements havehistorically only settled the EAV for the three power block PINs.List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-5 Category: SocioeconomicsStatement of Question:Exelon pays annual property taxes to a number of taxing entities within, and including,Will County. The Will County Treasurer collects Braidwood's property tax payment anddisperses it to the various taxing entities to partially fund their respective operatingbudgets. Please provide additional information about tax payments to Will County (aftertax triggers and not including PIAT payments) and the portion of the county tax moniesallocated to "the forest preserve, township and forest districts, school districts, fireprotection districts, park districts, library districts, and the county's cities and villages."Please provide a brief explanation of how these payments are allocated. Please providea table showing the amount of distribution (or percentage) of the Braidwood property taxpayment and each recipient's total revenue (or percent of total revenue). Note, the staffis seeking information to know how dependent some of these recipients may be on therevenue received from the Braidwood property tax payment via Will County.Response:Exelon Generation pays taxes directly to Will County in accordance with tax billsreceived from Will County each year. A copy of one of those bills is attached to thisresponse as an example. This illustrative bill shows a line entry for each of the taxingbodies that impose tax on that particular tax parcel. As the Braidwood Station propertyis large, some of the tax parcels it includes fall within multiple taxing districts. There isno one tax parcel that is levied on by every taxing body that levies against the station,and therefore no one bill that shows all of the taxing districts that levy tax on the totalproperty.Exelon Generation has no control over how the tax money it pays is allocated by theCounty to the taxing districts. Each district has the ability to levy against all taxpayerswithin its respective district according to its own charter and according to state law. Thecurrent levies are noted as a percentage in the column marked "Rate" on the tax bill.Exelon Generation understands that the County Treasurer allocates the tax moneycollected to the respective taxing bodies according to their pre-determined levies onceall taxes have been collected.The tables below for 2011 and 2012 show the total levy for each taxing body thatimposes a tax on some portion of the Braidwood Station property, and show the exactamount paid by Exelon Generation to each taxing body. The tables also show thepercentage of total revenue represented by Exelon Generation's payment for eachtaxing body for the tax years 2011 and 2012. Table SOC-5.12011 Property Tax Payment Comparison, Each Taxing District IndividuallyTaxing DistrictPortion ofBraidwood StationProperty TaxPayment ($)BraidwoodStation Paymentas Percent ofTaxing DistrictLevy (%)Total TaxingDistrict Levy ($)Taxing BodyWill County Forest PreserveWill County Building CommissionReed Township Town FundsReed Township Road FundsBraidwood Fire DistrictEssex Fire DistrictCuster Township Town FundsCuster Township Road FundsCuster Fire DistrictSchool District 255-UJoliet Junior Community College525Godley Park DistrictVillage of Braceville Road andBridgeBraidwood Park DistrictFossil Ridge Public LibraryReed Township MosquitoAbatementWill CountyClaypool Drainage District33,991,038.144,015,499.58170,009.32178,530.091,546,592.5115,106.0984,196.41200,060.7970,096.7320,141,090.9140,559,603.38936,736.01160.51154,986.17636,060.44131,964.64107,435,329.2396,479.62726,125.1285,779.74122,365.90144,527.951,113,239.083,646.112,034.294,857.261,944.8713,594,795.151,056,376.97865,880.3491.037,122.11429,327.3094,997.642,295,036.04276.40227281722422367392575677220.2 Table SOC-5.12012 Property Tax Payment Comparison, Each Taxing District IndividuallyTaxing BodyWill County Forest PreserveWill County Building CommissionReed Township Town FundsReed Township Road FundsBraidwood Fire DistrictEssex Fire DistrictCuster Township Town FundsCuster Township Road FundsCuster Fire DistrictSchool District 255-UJoliet Junior Community College525Godley Park DistrictVillage of Braceville Road andBridgeBraidwood Park DistrictFossil Ridge Public LibraryReed Township MosquitoAbatementWill CountyClaypool Drainage DistrictTotal TaxingDistrict Levy ($)35,103,179.944,003,154.85177,882.77189,927.841,649,412.2715,907.6886,815.47201,819.5472,233.7921,476,914.6442,887,756.321,249,133.79115.69158,705.25673,848.52138,820.97107,557,817.1396,278.28Taxing DistrictPortion ofBraidwoodStation PropertyTax Payment ($)886,752.47101,125.06140,903.01167,040.761,306,774.554,041.932,255.695,304.171,987.8416,039,297.361,320,350.251,234,838.5243.737,548.82503,240.49109,961.472,717,021.72276.40BraidwoodStation Paymentas Percent ofTaxing DistrictLevy (%)337988792533375399385757930.2List Attachments Provided:1. Sample Braidwood Property Tax Bill 2,800IWILL COUNTY 2012 LEVY PROPERTYTAX BILLWILL COUNTY COLLECTORP.O-.BOX 800, JOLIET, UL 60434-6=0EXELON GENERATION Co uLCATIrNFRED SCHWER3 UNCOLN CTR:4TH FLOAKBROOK TERRACE IL 60181-4204Ui[afPlease read the Important intonmatlon on the back ofthis regamtng your aes betfe making peaent.Tax IU! requested byPIN: 02-24-18-400-012-0000ILandBuilk" n.Added AssessmentImprovement ExemptionTotal Assessed ValueToap. MultiplierCounty MultiplierEqualizedValueFarm LandFarm BuildingHomestead ExemptionSr. Citizen ExemptionSr. Citizen Frez ExemptionEnterprise Zone Exemption.Open Space ExemptionNet Equalized Value.....Tax RateTax Before ExemptionsReduction due to ExemptionsTax After ExemptionsOther TaxTotal Tax Duexx+÷29,48800029.4861.00001.000029.4860000000029,4886.01081,477.480.001,477.4884.581,562.08ACREAG TAX~ GUU7.0.48 0221IMP CLASSI" .-TAXING DISTRICTFOREST PRESERVEWILL COUNTY BLDG COMMREED 7WP TOWN FUNDSREED 1WP ROAD FUNDSBRAIDWOOD FIRE DIST :SCHOOL DISTRICT 255-UCOMM COLLEGE DIST 525VILLAGE OF BRACEVILLEVIL BRACEVILLE RD BRBRAIDWOOD PARK DISTFOSSIL RIDGE PUB UBREED TWP:MOSO ABATMNTWILL COUNTY2011 Rate.0200.0286.01689.26073.16097.2483.0000.0169..1120.1001.0222.53512011 Tax49.925.908.434.9876.87934.6272.824.9833.0229.526.55167.7984.W61.469.782012 Rate.1859.0212.0298.0176.275033625.2788-00OO.0175.1265.1055.0231.56962012 Tax54.816268.736.1981.09991.4781.625.18*37.3031.118681167.94.84.581,569.06Pemaw1.7317.6928.632012 MARMET VALUESIA EQUAL FACTOR.9089x==+: =CLAYPOOL DR DISTTOTAL AMOUNT41978&.01081ST DUE DATE 6W13 2ND DUE DATE 9/3/13 TOTAL AMOUNT DUE781.03 781.031,862.06Unpaid taxes will be sold on 12/4/1& INo Payment wilb be accepted after 12/3/13Checks payable to: Will County Collector. Pay on-lne at www.willcouniytAllLcom.IV?I Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-6 Category: SocioeconomicsStatement of Question:In addition to property tax payments and PIAT information presented in Section 2.7 ofthe ER, describe any other major annual support payments, one-time payments, andother forms of non-tax compensation (if any) provided to local organizations,communities, and jurisdictions (e.g., county, municipality, townships, villages,incorporated places, and school districts) by Exelon.Response:Braidwood Station also provides charitable donations in fairly small amounts to anumber of local governmental, charitable, educational and other organizations. The totalof these donations for 2012 was $121,980, which total includes some fund raising fromthe local community that was then donated to a local charity. The attached chart showsa typical list of all the charitable donations for the year 2012. These charitable donationshave not been significantly different in recent years, and are expected to continue at thisor a slightly lower level in future years.The station also makes payments to the Illinois Emergency Management Agency(IEMA), a portion of which are sent to Will County to assist with the operation of theCounty Emergency Preparedness Facility and to other local governmental unitssurrounding the Braidwood Station for purposes of emergency management related tothe nuclear station (such payments were made to Braidwood Fire Protection District,Essex Fire Protection District, Village of Godley, and City of Joliet). The total amountExelon Generation paid to I EMA for fiscal 2012 (July 1, 2012 -June 30, 2013) was$951,591. The portion of Exelon's fee to IEMA that was sent to jurisdictions surroundingBraidwood Station for fiscal 2012 was $106,768, including $78,593 directly to WillCounty.List Attachments Provided:1. SOC-6 Table, 2012 Braidwood Site Fund Charitable Expenditures Table SOC-62012 Braidwood Site Fund Charitable ExpendituresDate Organization Event AmountApproved1/9/2012 Shorewood HUGS Hugs and Wishes Chocolate $ 1,000.00Ball1/20/2012 National Bass Anglers Club Sponsorship $ 1,000.00Association1/20/2012 Village of Godley Computer Donation $ 1,500.001/31/2012 Senior Services Mardi Gras on Wheels $ 1,000.00Center of Will County3/5/2012 Braceville Community Braceville Summer Festival $ 2,000.00Action Team3/5/2012 Godley Mining 2012 Youth in Action $ 500.00Museum3/5/2012 Rt. 66 Red Corridor Annual Event $ 10,000.00Festival3/5/2012 Braidwood Lions Club Braidwood SummerFest $ 6,000.00Fireworks3/5/2012 Easter Seals of Will Annual Sponsorship $ 1,500.00County3/5/2012 Goose Lake Park Beach Fence $ 1,000.003/5/2012 Reed Custer School Post Prom Lock In $ 1,500.003/28/2012' Big Brothers Big Bowl for Kids Sake $ 2,500.00Sisters3/28/2012 Big Brothers Big Grand Finale $ 2,500.00Sisters3/28/2012 NVHS Prom Event $ 250.004/17/2012 Gardner South Scholarship $ 1,000.00Wilmington HighSchool4/17/2012 Wilmington High Scholarship $ 1,000.00School4/17/2012 Reed Custer School Scholarship $ 1,000.004/17/2012 South Wilmington SCBA Replacement $ 500.00Volunteer Fire Dept. 4/17/2012 Village of South Party in the Park $ 1,000.00Wilmington4/24/1012 Morris High School Chip'n IN Club $ 100.005/7/2012 American Cancer Bell's Angels $ 500.00Society5/9/2012 Braidwood Community Fishing Donation (From Shaw) $ 200.00Care Center5/10/2012 International Order of Golf Hole Sponsorship $ 100.00Alhambra ZiritaCaravan5/16/2012 Minooka H.S. Athletic Boosters $ 500.005/18/2012 Reed Custer School Braidwood Shootout $ 4,000.006/9/2012 Village of Wilmington Catfish Days $ 3,500.006/13/2012 American Cancer Relay for Life $ 250.00Society6/18/2012 Morris Hospital Foundation $ 500.007/24/2012 Special Connections -Golf Outing $ 100.00Grundy County8/7/2012 Wilmington Lions Club Thanksgiving Dinner $ 1,000.008/7/2012 Braidwood Historical Car Show $ 200.00.. ... ... ...S o c ie ty -... .8/8/2012 Joliet Park District Team Sponsorship $ 550.008/8/2012 Chief Shabbona Replacement of SCBA Trailer $ 500.00Training Organization 8/9/2012 Reed Custer School Calendar Sponsorship $ 1,600.008/9/2012 MorningStar Mission Box City of Hope $ 1,500.008/20/2012 Village of Braceville Car Show $ 200.008/22/2012 Joliet Park District Volleyball League $ 330.009/20/2012 Braidwood Area Annual Dues $ 500.00Historical Society9/20/2012 Knights of Columbus Annual Project to support those $ 250.00with learning or intellectualdisabilities9/20/2012 Reed Custer Middle Peers Offering Positive $ 500.00School Solutions (POPS)10/3/2012 Joliet YMCA Joliet Jets Swim Team $ 100.0011/12/2012 Godley Mining Rennovations $ 5,000.00Museum12/18/2012 Wilmington Travel Team Sponsorship $ 250.00Cats*2012 City of Braidwood City Request to help fund new $ 15,000.00electronic marquee, and Rte 66Welcome Park*2012 Local Food Bank Fishing for a Cure -annual $ 48,000.00charity fund raiser -totalrepresents Exelon donationand fundraisingTOTAL 121,980.00 Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SOC-7 Category: SocioeconomicsStatement of Question:Provide information about any anticipated changes in state and local tax laws, rates, andassessed property value or any other recent or anticipated tax payment adjustments thatcould result in notable future increases or decreases in property taxes or otherpayments.Response:Except as stated in the responses to Request for Additional Information QuestionsSOC-3, SOC-4 and SOC-5, Exelon Generation has no information about futureincreases or decreases in property taxes or other payments to state and local taxingentities.List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: EJ-1 Category: Environmental JusticeStatement of Question:Provide summaries of telephone interviews conducted by Exelon regarding local subsistenceconsumption behavior patterns. These interviews were located in Supplemental Report,Volume II, Table 1, during the environmental audit.Response:The summaries of telephone interviews conducted by Exelon regarding localsubsistence consumption behavior patterns are provided in the attachment.List Attachments Provided:1. Compilation of Telephone Logs. Investigating Potential Existence ofSubsistence-Like Populations in Will County, Grundy, and Kankakeecounties, Illinois. July 24, 2013 Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: EJ-1 Category: Environmental JusticeStatement of Question:Provide summariesof telephone interviews conducted by Exelon regarding local subsistenceconsumption behavior patterns. These interviews were located in Supplemental Report,Volume II, Table 1, during the environmental audit.Response:The summaries of telephone interviews conducted by Exelon regarding localsubsistence consumption behavior patterns are provided in the attachment.List Attachments Provided:1. Compilation of Telephone Logs. Investigating Potential Existence ofSubsistence-Like Populations in Will County, Grundy, and Kankakeecounties, Illinois. July 24, 2013 PCompilation of Telephone LogsInvestigating Potential Existence of Subsistence-Like Populationsin Will, Grundy, and Kankakee counties, IllinoisJuly 24, 2013Tetra Tech, Inc., Aiken, South Carolina, called selected government agencies and private social welfareorganizations to determine if there is positive or anecdotal evidence of populations exhibiting subsistence-like living. No such populations were identified by those called.Those called were:" Illinois State University Extension for Will, Grundy, and Kankakee counties" Will County Health Department* Will County Land Use Department" United Way for Grundy County" Grundy County Health Department* Kankakee County Health Department Braldwood Station License Renewal Environmental ReportProject 112C03618TELEPHONE LOGDateiTime: 18 July 2013 11:30Topic: subsistence living in Will, Grundy, Kankakee counties, IllinoisInvolved Parties (name, company or agency, title, phone number):Tetra Tech: Steve Connor, Tetra Tech, environmental justice analyst, 803 641-4939Beth Laplante, Illinois State University Extension, County Director for Will, Grundy, andKankakee countiesSummary of Conversation:Two communites:Stelle, IL in northern Ford County approximately 20 miles SSE of Braidwood. It is a commune-likecommunity with fruit trees, gardening for inernal use.Pembroke, IL is a predominantly African American community more than 30 miles SE from Braidwood.Also, there has been a growth of small (<5 acre) truck farms producing for local consumption and goatmeat farmers on small acreage.Follow-up:Tetra Tech Representative Signature: Braidwood Station License Renewal Environmental ReportProject 112C03618TELEPHONE LOGDate/Time: 22 July 2013 11:00Topic: subsistence living in Will County, IllinoisInvolved Parties (name, company or agency, title, phone number):Tetra Tech: Steve Connor, Tetra Tech, environmental justice analyst, 803 641-4939Stacey Bailey, Program Coordinator, Will County Health Department, 815 727-8490Summary of Conversation:Not aware of any subsistence-like living in Will CountyFollow-up:Ms. Bailey will call another office to see if any other info and will call back if different response.Tetra Tech Representative Signature: Braidwood Station License Renewal Environmental ReportProject 11 2C0361 8TELEPHONE LOGDateiTime: 22 July 2013 0930Topic: subsistence living in Will County, IllinoisInvolved Parties (name, company or agency, title, phone number):Tetra Tech: Steve Connor, Tetra Tech, environmental justice analyst, 803 641-4939Curt Paddock, Director Will County Land Use Department, 815 774-4353Summary of Conversation:Not aware of any subsistence-like living in Will CountyFollow-up:Ms. Bailey will call another office to see if any other info and will call back if different response.Tetra Tech Representative Signature: Z 4 1614 - Braldwood Station License Renewal Environmental ReportProject 112C03618TELEPHONE LOGDate/Time: 24 July 2013 1030Topic: subsistence living in Grundy County, IllinoisInvolved Parties (name, company or agency, title, phone number):Tetra Tech: Steve Connor, Tetra Tech, environmental justice analyst, 803 641-4939Karen Nail, Director of United Way for Grundy County, 815 942-4430Summary of Conversation:Not aware of any subsistence-like populationsThe county is approximately 70% farmers but produce likely not locally consumed.Follow-up:Tetra Tech Representative Signature: Braldwood Station License Renewal Environmental ReportProject 112C03618TELEPHONE LOGDate/Time: 24 July 2013 1045Topic: subsistence living in Grundy County, IllinoisInvolved Parties (name, company or agency, title, phone number):Tetra Tech: Steve Connor, Tetra Tech, environmental justice analyst, 803 641-4939Mike Boyle, Director of Environmental Health, 815 941-3404Summary of Conversation:Not aware of any subsistence-like populationsFollow-up:Tetra Tech Representative Signature: Braidwood Station License Renewal Environmental ReportProject 112C03618TELEPHONE LOGDateiTlme: 24 July 2013 12:00Topic: subsistence living in Kankakee County, IllinoisInvolved Parties (name, company or agency, title, phone number):Tetra Tech: Steve Connor, Tetra Tech, environmental justice analyst, 803 641-4939Bonnie Schaafsma, Public Health Administrator for Kankakee County 815 802-9410Summary of Conversation:Recently performed a Community Needs Assessment that included demographic data and no subsistence-like population exists.The county has a significant number of families below the poverty level but they are mostly in urbanareas.Mentioned the Stelle community in Ford County that was previously identified.Follow-up:Tetra Tech Representative Signature: Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: EJ-2 " Category: Environmental JusticeStatement of Question:Provide information about current or past wildlife sampling and testing of game animals suchas deer, squirrel, turkey, pheasant, duck, fish and other game birds and animals that mayhave been conducted in the vicinity of Braidwood. Wildlife sampling and testing may havebeen conducted before, during, and after plant construction and in the early days of plantoperation, but was discontinued after determining that tissue samples consistently showedno significant or measurable radiological impact on the environment from plant operations.Response:The Braidwood Station FES, Section 5.9.3.4, describes the preoperational andoperational radiological environmental monitoring programs. Neither wildlife samplingnor testing of terrestrial game animals was included in either program. Fish samplingwas included in both programs and continues to be conducted as part of the currentannual radiological environmental monitoring program. Results of the fish samplingprogram are reported in the Braidwood Station Annual Radiological EnvironmentalOperating Reports; results from 2004 through 2010 are summarized in the table below.Fish samples were collected at two locations semiannually in 2004, 2005, and in the firstevent of 2006. A third sampling location was added in the second semiannual event of2006, and fish samples were collected at three locations in all subsequent samplingevents. One of the locations, which is on the Kankakee River upstream of theBraidwood discharge, acts as a control location and is approximately 5.0 miles east ofBraidwood Station. Another of the locations, which could be affected by BraidwoodStation's effluent releases, is located on the Kankakee River at the plant discharge intothe river, approximately 5.4 miles east of Braidwood Station. The third location, whichcould be affected by Braidwood's effluent releases, is in the cooling pond, approximately1.0 mile east of Braidwood Station. Gamma Spectrometry Analysis was performed onthe edible portion of fish samples from each location.Year Species Sampled Results of Gamma Spectrometry Analysissmallmouth bass, largemouth The edible portion of fish samples from twosma00mouth bass, ch elargoem h locations was analyzed for gamma emitting2004 bass, channel catfish, golden nuclides. No nuclides were detected, and allredhorse required LLDs were met.smallmouth bass, golden The edible portion of fish samples from two2005 smaouhannel bass , ge locations was analyzed for gamma emitting2005 redhorse, channel catfish, rock nuclides. No nuclides were detected, and allbass, carp required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from alllargemouth bass, goldenllm h locations was analyzed for gamma emitting2006 bass, golden redhorse, nuclides. No nuclides were detected, and allchannel catfish, common carp required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from all2007 bass, rock bass, golden locations was analyzed for gamma emittingredhorse, channel catfish, nuclides. No nuclides were detected, and allbluegill, common carp required LLDs were met.1 of 2 Year Species Sampled Results of Gamma Spectrometry Analysislargemouth bass, smallmouth The edible portion of fish samples from all2008 bass, golden redhorse, locations was analyzed for gamma emittingchannel catfish, common carp, nuclides. No nuclides were detected, and allquillback, walleye required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from all2009 bass, golden redhorse, locations was analyzed for gamma emittingbluegill, channel catfish, nuclides. No nuclides were detected, and allcommon carp required LLDs were met.largemouth bass, smallmouth The edible portion of fish samples from all2010 bass, golden redhorse, locations was analyzed for gamma emittingquillback, freshwater drum, nuclides. No nuclides were detected, and allchannel catfish, common carp required LLDs were met.List Attachments Provided:None2 of 2 Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: TE-1 Category: Terrestrial EcologyStatement of Question:Provide the following references:a. (CornEd 1973a) Commonwealth Edison Company. 1973. Braidwood StationEnvironmental Report -Volume I. July 1973 (Terrestrial Ecology sections only).b. (CornEd 1973b) Commonwealth Edison Company. 1973. Braidwood StationEnvironmental Report -Volume II. July 1973 (Terrestrial Ecology sections only).c. (CornEd 1985) Commonwealth Edison Company. 1985. Braidwood Station Units 1and 2, Environmental Report -Operating License Stage. NRC Docket Nos. 50-456and 457, Amendment 7. June 10, 1985 (Terrestrial Ecology sections only).Response:The requested information is attached.List Attachments Provided:1. Terrestrial Ecology Sections from CornEd 1973a. Commonwealth Edison Company.1973. Braidwood Station Environmental Report -Volume I July 1973.2. Terrestrial Ecology Sections from CornEd 1973b. Commonwealth Edison Company.1973. Braidwood Station Environmental Report -Volume II July 1973.3. Terrestrial Ecology Sections from CornEd 1985. Commonwealth Edison Company.1985. Braidwood Station Units 1 and 2, Environmental Report -Operating LicenseStage. NRC Docket Nos. 50-456 and 457, Amendment 7. June 10, 1985. Commonwealth EdisonOne First National Plaza, Chicago. IllinoisAddress Reply to: Post Office Box 767Chicago, Illinois 60690September 13, 1973Mr. J. F. O'Leary, DirectorDirectorate of LicensingRegulationU.S. Atomic Energy CommissionWashington, D.C. 20545
Subject:
Submission of the Braidwood EnvironmentalReport, Project No. 477
Dear Mr. O'Leary:
Pursuant to Mr. Giambusso's letter of August 30, 1973,200 copies of the Braidwood Environmental Report are attached insupport of the Byron/Braidwood application. Several minorcorrections to the report have been included and have beendiscussed with your staff.Due to the fact that the Byron Environmental Reportsare being printed and assembled at another location, theByron reports are being submitted under separate cover.Very truly5ours,Vic n Lee, Jr.Vice-PresidentSUBSCRIBED AND SWORN tobeforo me this _-3 dayolf, 1973.
Supplement 2CONTENTSVolume IPageTITLE PAGEFOREWORD iFRONTISPIECE iiCONTENTS ivLIST OF TABLES xxiLIST OF FIGURES xxxvi1.0 OBJECTIVE OF THE PROPOSED FACILITY 1.1-11.1 Requirement for Power 1.1-11.1.1 Demand Characteristics 1.1-11.1.1.1 Load Forecasting Methodology 1.1-11.1.1.2 Determining Base Load 1.1-21.1.1.3 Evaluating Heat Sensitive Load 1.1-31.1.1.4 Forecasting with the Model 1.1-41.1.2 Power Supply l.1-5A1.1.2.1 Capacity Resources 1. 1-SA 21.1.2.2 Reserve Margin 1.1-5A1.1.3 System Demand and Resource Capability 1.1-6Compari son1.1.4 Input and Output Diagram 1.1-61.1.5 Report from Regional Reliability Council 1.1-71.2 Other Primary Objectives 1.2-11.3 Consequences of Delay 1.3-12.0 THE SITE 2.1-12.1 Site Location and Layout 2.1-12.2 Regional Demography, Land and Water Use 2.2-12.2.1 Regional Demography 2.2-12.2.1.1 Resident Population within Ten Miles 2.2-I2.2.1.2 Resident Population between 5 and 2.2-450 MilesM.R.2iv 7/731/74 CONTENTSPage2.2.1.3 Transient Population 2.2-52.2.1.4 Population Centers 2.2-82.2.1.5 Public Facilities and Institutions 2.2-82.2.2 Land Use 2.2-92.2.2.1 Agriculture 2.2-92.2.2.2 Industries 2.2-li2.2.2.3 Mining 2.2-122.2.2.4 Transportation 2.2-122.2.2.5 Public Facilities and Institutions 2.2-162.2.2.6 Nuclear Power Facilities 2.2-172.2.3 Water Use 2.2-172.2.3.1 Surface Water 2.2-172.2.3.2 Groundwater Use 2.2-182.3 Regional Historic and Natural Landmarks 2.3-12.3.1 Historical Significance 2.3-12.3.1.1 Will County 2.3-12.3.1.2 Grundy County 2.3-22.3.1.3 Kankakee County 2.3-32.3.2 Natural Significance 2.3-32.3.3 Archaeological Significance 2.3-42.3.4 Historical and Natural Considerations Along 2.3-5Transmission Lines2.4 Geology and Seismology 2.4-12.4.1 Basic Geologic and Seismic Data 2.4-12.4.2 Regional Geology 2.4-12.4.2.1 Physiography 2.4-22.4.2.2 Stratigraphy 2.4-22.4.2.3 Structures 2.4-32.4.3 Site Geology 2.4-42.4.3.1 Introduction 2.4-42.4.3.2 Physiographic Setting 2.4-52.4.3.3 Stratigraphy 2.4-62.4.3.4 Structure 2.4-21v M.R.27/73 Supplement 4CONTENTSPage2.4.3.5 Groundwater Observations,2.4.3.6 Solution Activity2.4.4 Seismic History2.5 Hydrology2.5.1 Surface Water Hydrology2.5.1.1 Site2.5.1.2 Kankakee River Basin Characteristics2.5.1.3 Floods2.5.1.4 Low Flows2.5.1.5 Water Quality2.5.1.6 Kankakee River Temperature2.5.1.7 Velocities2.5.2 Groundwater Hydrology2.5.2.1 Area Conditions2.5.2.2 Regional Use2.5.213 Groundwater Hydraulics2.5.2.4 Groundwater Quality2.5.2.5 Site Use2.5.2.6 Monitoring2.5.2.7 Construction Effects on Groundwater2.5.2.8 Cooling Lake Effects on Groundwater2.5.2.9 Effect of Lake on Crane and GranaryCreeks2.4-232.4-232.4-262.5-12.5-12.5-12.5-22.5-42.5-52.5-82.5-82.5-92.5-92.5-92.5-112.5-122.5-142.5-142.5-152.5-152.5-182.5-1932.6 Meteorology2.6.1 Regional2.6.1.12.6.1.22.6.1.3MeteorologyData SourcesGeneral ClimateSevere Weather2.6-12.6-12.6-12.6-22.6-3A14viM.R.27/732/746/74 CONTENTS2.6.2 Local Meteorology2.6.2.1 Data Sources2.6.2.2 Normal and Extreme Values ofMeteorological Parameters2.6.2.3 Topography2.6.3 Long-Term (Routine) Diffusion Estimates2.7 Ecology2.7.1 Terrestrial Ecology2.7.1.1 Introduction2.7.1.2 Mining Practices2.7.1.3 Reclamation Program2.7.1.4 Succession2.7.1.5 Soils2.7.1.6 Vegetation of Site Areas2.7.1.7 Animals of the Site2.7.2 Aquatic Ecology2.7.2.1 Introduction2.7.2.2 Previous Environmental Studies2.7.2.2a Baseline Program2.7.2.3 Life Histories2.7.2.4 Valuable Commercial Species2.7.2.5 Food Web2.7.2.6 Species Diversity2.7.2.7 Pre-Existing Environmental Conditionsand Stresses2.8 Background Radiological Characteristics2.8.1 General2.8.2 Radioactivity in Air2.8.3 External Gamma Radiation2.8.4 Radioactivity in the Aquatic Environment2.8.5 Radioactivity from Terrestrial Products2.8.6 Total Genetic Dose to General IllinoisPopulationviiPage2.6-92.6-92.6-92.6-122.6-132.7-12.7-12.7-12.7-12.7-22.7-22.7-42.7-72.7-142.7-382.7-382.7-402.7-412.7-512.7-522.7-522.7-532.7-542.8-12.8-12.8-22.8-32.8-42.8-62.8-7M.R.27/73 CONTENTSVolume II3.0 THE PLANT3.1 External Appearance3.1.1 Structures3.1.2 Arrangement of Structures3.1.3 Architectural Features and AestheticConsiderations3.1.4 Release Points3.2 Reactor and Steam-Electric System3.2.1 System Description3.2.2 Fuel Description3.2.3 Power Output3.3 Plant Water Use3.3.1 General3.3.2 Cooling Water System3.3.3 Service Water Usage3.3.4 Sanitary Water System3.3.5 Makeup Demineralizer System3.3.6 Seepage3.4 Heat Dissipation System3.5 Radwaste Systems3.5.1 General3.5.2 Liquid Radwaste Description3.5.2.1 Radioactive Waste Drains Subsystem3.5.2.2 Steam Generator Blowdown Subsystem3.5.2.3 Laundry Waste Subsystem3.5.2.4 Liquid Radwaste Discharges3.5.3 Solid Radwaste System3.5.4 Gaseous Radwaste Description3.5.4.1 General3.5.4.2 Gaseous Waste Sources3.5.4.3 System Description3.5.4.4 Gaseous Waste DischargePage3.1-13.1-13.1-13.1-23.1-23.2-13.2-13.2-23.2-23.3-13.3-13.3-23.3-33.3-43.3-43.3-43.4-13.5-13.5-13.5-13.5-13.5-33.5-33.5-43.5-53.5-73.5-73.5-83.5-83.5-11viiiM.R.27/73 Supplement 2CONTENTSPage3.6 Chemical and Biocide Systems 3.6-13.6.1 General 3.6-13.6.2 Cooling Water System 3.6-13.6.2.1 Circulating Water 3.6-13.6.2.2 Non-Essential Service Water System 3.6-33.6.2.3 Essential Service Water System 3.6-3 23.6.3 Makeup Water Treatment System 3.6-3A3.6.4 Potable and Sanitary Water System 3.6-3B3.7 Sanitary and Other Waste Systems 3.7-13.7.1 Sanitary Wastes 3.7-13.7.2 Other Waste Systems 3.7-13.8 Radioactive Materials Inventory 3.8-13.8.1 Cold Fuel Elements 3.8-13.8.2 Irradiated Fuel Elements 3.8-13.8.3 Radioactive Waste Material 3.8-23.9 Transmission Facilities 3.9-13.9.1 Location and Description of Rights-of-Way 3.9-13.9.1.1 Braidwood Station to the Existing 3.9-1Joliet Generating Station3.9.1.2 Braidwood Station to the Existing 3.9-2Crete Transmission Substation3.9.2 New Substations Off Site 3.9-33.9.3 Existing Substations Affected 3.9-33.9.3.1 Crete Transmission Substation 3.9-33.9.3.2 Joliet Generating Station Substation 3.9-3Facilities3.9.4 Radiated Electrical and Acoustical Noise 3.9-43.9.5 Induced or Conducted Ground Currents 3.9-43.9.6 Ozone Production 3.9-43.9.7 Environmental Impact 3.9-6ix M.R.27/731/74 Supplement 4CONTENTS4.0 ENVIRONMENTAL EFFECTS OF SITE PREPARATION, PLANT ANDTRANSMISSION LINE CONSTRUCTION4.1 Site Preparation and Plant Construction4.1.1 Schedule4.1.2 Plant Construction4.1.3 Pipeline Construction4.1.4 Dike Construction4.1.5 Effects of Lake Construction4.1.5.1 Flora4.1.5.2 Wildlife4.1.6 Miscellaneous Effects4.1.7 Impact on Human Habitat4.1.8 Mitigation or Reversal Measures4.1.9 Possible Beneficial Consequences4.2 Transmission Facilities Construction,4.2.1 Total Length of New Lines4.2.2 Access Roads4.2.3 Clearing Methods4.2.4 Installation Procedures4.2.5 Consideration of Erosion Problems4.2.6 Effects on Agricultural Productivity4.2.7 Plans for Wildlife Protection4.2.8 Plans for Disposal of Debris4.2.9 Restoration Plans4.2.10 Environmental Impact4.3 Resources Committed4.3.1 Site Construction4.3.2 Transmission Line Construction4.3.3 Water Resources4.3.4 Mineral ResourcesxPage4.1-14.1-14.1-14.1-14.1 -IE4.1 -lG4.1-3A4.1-3B4.1-54.1-64.1-74.1-84.1-94.2-14.2-14.2-14.2-14.2-24.2-24.2-24.2-24.2-34.2-34.2-34.3-14.3-14.3-24.3-34.3-3M.R.27/736/74 CONTENTSPage5.0 ENVIRONMENTAL EFFECTS OF PLANT OPERATION 5.1-15.1 Effects of Operation of the Heat Dissipation System 5.1-15.1.1 River Temperature Predictions 5.1-15.1.2 Illinois Thermal Standards 5.1-25.1.2.1 Rules Applicable to the Kankakee 5.1-2River5.1.2.2 Mixing Zones 5.1-45.1.2.3 Acceptance of Standards by EPA 5.1-55.1.2.4 Evaluation of Compliance with 5.1-6Thermal Standards5.1.3 Effects of Heated Plume on Aquatic Life in 5.1-8the Kankakee River5.1.3.1 Fish 5.1-95.1.3.2 Benthos 5.1-135.1.3.3 Phytoplankton 5.1-145.1.3.4 Periphyton 5.1-155.1.3.5 Zooplankton 5.1-155.1.3.6 Macrophytes 5.1-165.1.4 Effect on Thermal Effluent on Aquatic Life 5.1-16in Braidwood .Lake5.1.4.1 Before Plant Operation 5.1-165.1.4.2 After Plant Operation 5.1-175.1.5 Plant Shutdown 5.1-235.1.6 Effects of River Intake and Discharge 5.1-23Structures5.1.6.1 Intake Screen Fish Mortality 5.1-245.1.6.2 Scour 5.1-245.1.6.3 Natural Circulation of the River 5.1-255.1.7 Terrestrial Impact of Braidwood Lake 5..1-255.1.8 Cooling LakeEnvironmental Impact 5.1-265.2 Radiological Impact on Biota Other Than Man 5.2-15.2.1 Exposure Pathways 5.2-15.2.1.1 Aquatic Releases 5.2-15.2.1.2 Atmospheric Releases 5.2-2xi M.R.27/73 CONTENTSPage5.2.2 Radioactivity in Environment 5.2-25.2.2.1 Aquatic Releases 5.2-25.2.2.2 Atmospheric Releases 5.2-45.2.3 Dose Rate Estimates 5.2-55.3 Radiological Impact on Man 5.3-15.3.1 Exposure Pathways 5.3-15.3.1.1 Aquatic Pathways 5.3-15.3.1.2 Atmospheric Pathways 5.3-2A 125.3.2 Liquid Effluents and Associated Doses 5.3-35.3.3 Atmospheric Effluents and Associated Doses 5.3-55.3.4 Direct Radiation 5.3-55.3.4.1 Radiation from Facility 5.3-55.3.4.2 Transportation of Radioactive Material 5.3-65.3.5 Summary of Annual Radiation Doses 5.3-85.4 Effects of Chemical and Biocide Discharges 5.4-15.4.1 Cooling Water System 5.4-15.4.2 The Makeup Water System 5.4-25.4.3 Potable and Sanitary Water System 5.4-25.4.4 Compliance With Standards 5.4-35.5 Effects of Sanitary and Other Waste Discharges 5.5-15.5.1 Sanitary Wastes 5.5-15.5.2 Non-Radioactive Gaseous or Smoke Wastes 5.5-15.5.3 Trash and Miscellaneous Solid Wastes 5.5-25.6 Effects of Operation and Maintenance of Transmission 5.6-1Systems5.6.1 Maintenance of Transmission Right-Of-Way 5.6-15.6.2 Periodic Transmission Line Inspection Programs 5.6-15.6.3 Operational Aspects 5.('-15.7 Other Effects of Plant Operation 5.7-15.8 Resources Committed 5.8-15.81I Resources Committed During Plant Lifetime 5.8-15.8.2 Irretrievable Commitment of Resources 5.8-2xii M.R.27/731/74 CONTENTSPage6.0 EFFLUENT AND ENVIRONMENTAL MEASUREMENTS AND MONITORINGPROGRAM6.1 Preoperational Environmental Programs6.1.1 Surface Waters6.1.1.1 Physical and Chemical MonitoringProgram6.1.1.2 Biological Monitoring Program6.1.1.3 Previous Environmental Studies6.1.2 Groundwater6.1.2.1 Physical and Chemical Parameters6.1.2.2 Models6.1.3 Air6.1.3.1 Meteorology6.1.3.2 Model6.1.4 Land6.1.4.1 Geology and Soils6.1.4.2 Land Use and Demographic Surveys6.1.4.3 Ecological Parameters6.1.5 Radiological Surveys6.1.5.1 Sampling Media, Location and Frequency6.1.5.2 Analytical Sensitivity6.1.5.3 Data Analysis and Presentation6.1.5.4 Program Statistical Sensitivity6.2 Applicant's Proposed Operational Monitoring Programs6.2.1 Radiological Monitoring6.2.1.1 Plant Monitoring System6.2.1.2 Environmental Radiological Monitoring6.2.2 Chemical Effluent Monitoring6.2.3 Thermal Monitoring Program6.2.4 Meteorological Monitoring6.0-16.1-16.1-16.1-26.1-36.1-106.1-106.1-106.1-116.1-126.1-126.1-156.1-186.1-186.1-206.1-266.1-286.1-306.1-306.1-306.1-336.2-16.2-16.2-16.2-56.2-66.2-66.2-8xiiiM.R.27/73 CONTENTSPage6.2.5 Ecological Monitoring6.2.5.1 Aquatic Monitoring6.2.5.2 Terrestrial Monitoring6.3 Related Environmental Measurement and MonitoringPrograms6.3.1 Hydrology6.3.1.1 Precipitation6.3.1.2 Streamflow6.3.2 Biology6.3.3 Radiation6.3.4 Federal Environmental Protection Agency6.3.5 Relevance of the Related EnvironmentalMeasurement and Monitoring Programs6.3.6 Exchange of Information7.0 ENVIRONMENTAL EFFECTS OF ACCIDENTS7.1 Plant Accidents7.1.1 Meteorology and Model for Dose Calculation7.1.1.1 Meteorology7.1.1.2 Dose Calculation Models6.2-106.2-106.2-106.3-16.3-16.3-16.3-26.3-26.3-36.3-36.3-36.3-47.1-17.1-17.1-2a7.1-2a7.1-37.1-47.1-47.1-47.1-47.1-67.1-67.1-97.1-117.1.2 Accident7.1.2.17.1.2.27.1.2.37.1.2.4AnalysesAccidentAccidentAccidentAccident1.0 -2.0 -3.0 -4.0 -Trivial IncidentsSmall Release OutsideContainmentRadwaste System FailureFission Products toPrimary System (BWR)Fission Products toPrimary and SecondarySystems (PWR)Refueling AccidentSpent Fuel HandlingAccident7.1.2.5 Accident 5.0 -7.1.2.67.1.2.7AccidentAccident6.0 -7.0 -xivM.R.27/73 CONTENTSPage7.1.2.8 Accident 8.0 -Accident Initiation 7.1-14Events Considered in Design BasisEvaluation in the Safety AnalysisReport7.1.3 Summary of Accident Doses 7.1-207.2 Transportation Accidents 7.2-17.2.1 New Fuel Transportation 7.2-17.2.2 Spent Fuel 7.2-17.2.3 Packaged Radioactive Waste 7.2-37.3 Other Accidents 7.3-17.3.1 Cooling Lake Dike Failures 7.3-18.0 ECONOMIC AND SOCIAL EFFECTS OF PLANT CONSTRUCTION AND 8.0-1OPERATION8.1 Value of Delivered Products 8.1-18.2 Estimated Income from Wages and Materials 8.2-18.3 Employment 8.3-18.4 Taxes 8.4-18.5 Externalities 8.5-19.0 ALTERNATIVE ENERGY SOURCES AND SITES 9.1-1.9.1 Alternatives Not Requiring the Creation of New 9.1-1Generating Capacity9.1.1 Purchased Power 9.1-19.1.2 Other Alternatives 9.1-29.2 Alternatives Requiring the Creation of New 9.2-1Generating Capacity9.2.1 System Planning for Candidate Regions 9.2-19.2.2 Recent Developments 9.2-39.2.3 Alternative Fuels 9.2-59.2.4 Future Planning Considerations 9.2-79.2.5 Selection of Candidate Site -Plant Alternatives 9.2-9xv M.R.27/73 Supplement 2CONTENTS9.2.5.1 Alternative I Near Illinois-IndianaBorder9.2.5.2 Alternative II West of Kankakee9.2.5.3 Alternative III on Horse Creek9.2.5.4 Selection of the Braidwood Site9.3 Comparison of Practicable Alternatives and theProposed Facility9.3.1 Site Alternatives9.3.2 Fuel Alternatives9.3.3 Plant Alternatives9.3.3.1 Plant Costs9.3.3.2 Plant Benefits10.0 PLANT DESIGN ALTERNATIVESPage9.2-109.2-li9.2-129.2-139.3-19.3-19.3-29.3-49.3-59.3-7A10.0-11210.1)Cooling System (Exclusive of Intake and Discharge)10.1.1 Cooling System Alternatives10.1.1.1 Direct Dissipation to the KankakeeRiver10.1.1.2 Dry Cooling Towers, Natural andMechanical Draft10.1.1.3 Spray Pond10.1.1.4 Cooling Pond10.1.1.5 Natural Draft Wet Cooling Tower10.1.1.6 Mechanical Draft Wet Cooling Tower10.1.1.7 Other Cooling Systems10.1.2 Economic Costs of Cooling SystemAlternatives10.1.3 Environmental Costs10.1.3.1 Surface Water10.1.3.2 Groundwater10.1.3.3 Air10.1.3.4 LandIntake System10.2.1 Environmental Considerations10.1-110.1-110.1-110.1-210.1-310.1-410.1-510.1-710.1-810.1-8A10.1-1010.1-1010.1-1110.1-1210.1-1710.2-110.2-11210.2xviM.R.27173 CONTENTSPage10.2.1.1 Impingement or Entrapment 10.2-110.2.1.2 Transport or Retention 10.2-410.2.2 Environmental Costs 10.2-510.2.2.1 Impingement or Entrapment of Fish 10.2-5.10.2.2.2 Transport or Retention of 10.2-7Phytoplankton and Zooplankton10.2.2.3 Fish Eggs and Larvae 10.2-910.3 Discharge System 10.3-110.3.1 Environmental Considerations 10.3-110.3.2 Environmental Costs 10.3-310.3.2.1 Water Quality Excess Heat 10.3-310.3.2.2 Water Quality, Oxygen Availability 10.3-410.3.2.3 Aquatic Organisms 10.3-410.3.2.4 Wildlife 10.3-510.3.2.5 Fish, Migratory 10.3-510.4 Chemical System 10.4-110.4.1 Environmental Considerations 10.4-110.4.2 Environmental Costs 10.4-210.4.2.1 Chemical Discharge to Kankakee 10.4-2River10.4.2.2 Chemical Discharge to Ambient Air 10.4-410.5 Biocide System 10.5-110.6 Sanitary Waste System 10.6-110.6.1 Environmental Considerations 10.6-110.6.2 Environmental Costs 10.6-210.7 Liquid Radwaste System 10.7-110.7.1 Environmental Considerations 10.7-110.7.2 Environmental Costs 10.7-110.7.2.1 Radionuclides Discharged to 10.7-1Water Body10.7.2.2 Radionuclide Contamination of 10.7-1Groundwaterxvii M.R.27/73 CONTENTSPage10.8 Gaseous Radwaste System 10.8-110.9 Transmission System 10..9-110.9.1 Environmental Considerations 10.9-110.9.2 rransmission Route Selection 10.9-210.9.2.1 Land, Amount 10.9-210.9.2.2 Land Use and Land Value 10.9-210.9.2.3 People, Aesthetics 10.9-210.9.3 Transmission Facilities Construction 10.9-310.9.3.1 Land Adjacent to Right-of-Way 10.9-310.9.3.2 Land, Erosion 10.9-310.9.3.3 Wildlife 10.9-310.9.4 Transmission Line Operation 10.9-310.9.4.1 Land Use 10.9-310.9.4.2 Wildlife 10.9-310.10 Other Systems, Construction and Operation 10.10-110.10.1 Auxiliary Systems and Services 10.10-110.10.2 Plant Construction 10.10-110.10.2.1 People, Amenities 10.10-110.10.2.2 People, Accessibility of 10.10-2Historical Sites10.10.2.3 People, Accessibility of 10.10-2Archaeological Sites10.10.2.4 Wildlife 10.10-210.10.2.5 Land, Erosion 10.10-210.10.2.6 Kankakee River 10.10-310.10.3 Plant Operation 10.10-310.10.3.1 People, Amenities 10.10-310.10.3.2 People, Aesthetics 10.10-410.10.3.3 Wildlife 10.10-510.10.3.4 Land, Flood Control 10.10-510.10.4 Other Impacts 10.10-510.10.5 Combined or Interactive Effects 10.10-5M.R.2xviii 7/73 CONTENTS10.11 The Proposed Plant 10.11-110.11.1 Selection of Plant Design 10.11-110.11.2 Physical Costs 10.11-211.0 SUMMARY BENEFIT-COST ANALYSIS 11.0-11.1.1 Site-Plant Alternatives 11.1-111.1.1 Site-Fuel Alternatives 11.1-111.1.2 Plant Design Alternatives 11.1-111.1.2.1 Water Use Assessment 11.1-211.1.2.2 Land Use Assessment 11.1-311.1.2.3 Radiological Discharge Assessment 11.1-411.1.2.4 Evaluation of Alternatives 11.1-411.2 SummaryDescription of the Proposed Plant 11.2-111.3 Important Benefits of the Proposed Facility 11.3-111.3.1 Value of Delivered Products 11.3-111.3.2 Income and Employment 11.3-211.3.3 Taxes 11.3-211.3.4 Basis for Selection of Benefits 11.3-311.4 Balance of Benefits and Costs 11.4-112.0 ENVIRONMENTAL APPROVALS AND CONSULTATIONS 12.0-113.0 REFERENCES14.0 APPENDICES14.0 Appendix 0 -Supplementary Terrestrial Data for 14.0-1the Braidwood Site14.1 Appendix I -Life Histories of Kankakee River Fish 14.1-114.2 Appendix II -Joint Frequency Distribution of 14.2-1Humidity and Temperature, Argonne National LaboratoryMeteorology Observation Site, January 1, 1950,through December 31, 196414.3 Appendix III -Analytical Models for Radiation 14.3-1Dose Assessment14.4 Appendix IV -Radioactivity in Plant Systems Used 14.4-1As Source Terms for Evaluating Environmental Effectsof Accidentsxix M.R.27/73 Supplement 1CONTENTSAppendix IVa -Data for Radioactive Source-Term 14.4-9Calculation14.5 Appendix V -Local Economic Multipliers for Use in 14.5-1Estimating the Impact of a Nuclear Plant14.6 Appendix VI -Illinois Water Pollution Control Rules 14.6-114.7 Appendix VII -An Archaeological Assessment of TheBraidwood Nuclear Station, Will and Kankakee Counti.es,Illinois 14.7-1xx M.R.27/7311/73 Supplement 2LIST OF TABLESVolume ITable No.1.0 OBJECTIVE OF THE PROPOSED FACILITY1.1-1 Comparison of Load Model Results with Past Peak LoadDays1.1-2 Load Model Peak Making Weather Factors1.1-3 Sensitivity Analysis of the Weather Component Model1.1-4 Annual System Peak Hour Loads from 1968 through 19831.1-5 Summer Generation Capabilities by Categories1.1-6 Planned New Generation Units for Commonwealth Edison1.1-7 Planned Generation Retirements for Commonwealth Edison1.1-8 Reserve Margins for MWe Commonwealth Edison2.0 THE SITE2.2-1 Urban Centers with Population >2500 within a 30-MileRadius of the Braidwood Plant for Census Year 19702.2-2 Urban Centers with Population >25,000 within a 50-MileRadius of the Braidwood Plant for Census Year 19702.2-3 Population Distribution within 10 Miles of theBraidwood Plant for Census Year 19702.2-4 Projected Population Distribution within 10 Miles ofthe Braidwood Plant for Census Year 19802.2-5 Population Distribution within 5-50 Miles of theBraidwood Plant for Census Year 19702.2-6 Projected Population Distribution within 5-50 Miles ofthe Braidwood Plant for Census Year 19802.2-7 List of Recreation Facilities within 10 Miles of theBraidwood Plant2.2-7A Approximate Distance and Direction from the Center ofthe Turbine Building2.2-8 Schools within 10 Miles of the Braidwood Plant2.2-9 Hospitals in the Vicinity of the Braidwood PlantPage1.1-81.1-91.1-101.1-111.1-121.1-131.1-141.1-152.2-202.2-212.2-222.2-232.2-282.2-292.2-342.2-34A 22.2-352.2-37xxiM.R.27/731/74 Supplement 2LIST OF TABLESTable No.2.2-10 Farm Statistics for Grundy, Kankakee and Will Counties2.2-11 Farms within 5 Miles of Braidwood Plant2.2-12 Agricultural Statistics for Grundy,. Kankakee andWill Counties2.2-13 Agricultural and Livestock Statistics in Townshipswithin 10 Miles of the Braidwood Plant2.2-13A Dairy Livestock within a 5-Mile Radius of theBraidwood Station2.2-14 Livestock Statistics for Grundy, Kankakee and WillCounties2.2-15 Industries within 10 Miles of the Braidwood Plant2.2-16 Major Industry within 25 Miles of the Braidwood Plant2.2-17 Work Force Distribution of Grundy County2.2-18 Work Force Distribution of Kankakee County2.2-19 Work Force Distribution of Will County2.2-20 Mineral Production in Grundy, Kankakee and WillCounties2.2-21 Transportation Facilities of Towns within Ten Milesof the Braidwood Plant2.2-22 Nuclear Facilities within 65 Miles of the BraidwoodPlant2.2-23 Consumption of Kankakee River Water Upstream ofBraidwood Intake-Discharge Structures2.4-1 Regional Earthquakes2.4-2 Modified Mercalli Intensity (Damage) Scale of 19312.5-1 Floods on the Kankakee River near Wilmington2.5-2 Kankakee River Flow Characteristics at the IntakeLocation2.5-2A Kankakee River Monthly Minimal Flow Characteristicsat Intake Point2.5-2B Kankakee River Low Flow Frequency Duration at IntakePoint Based on Data from 1935-1970xxiiPage2.2-382.2-392.2-402.2-432.2-43A 22.2-442.2-452.2-462.2-482.2-492.2-502.2-512.2-522.2-532.2-53A2.4-292.4-352.5-202.5-222.5-22A 22.5-22BM.R.27/731/74 Supplement 2LIST OF TABLESTable No. F2.5-3 Percent of Kankakee River Flow Required For Average NetUse of 47.3 CFS Based on Historical River Flows 22.5-3a Equivalent Concentrations Of The Major Alkaline and AcidForming Components Extracted From Soil 22.5-3b Concentration of Leached Soil Constituents in CoolingLake Water, Under Forced Extraction Conditions 22.5-4 Kankakee River Quality 22.5-5 Kankakee River Temperature Near Wilmington2.5-6 Generalized Hydrogeologic Column2.5-7 Municipal Groundwater Supply Use Within Ten Miles Of TheSite2.5-8 Private Water Wells Within Two Miles Of The Site2.5-9 Groundwater Quality2.6-1 Climatological Data From Weather Stations SurroundingThe Braidwood Site2.6-2 Maximum Recorded Point-Rainfall From Weather StationsSurrounding The Braidwood Site2.6-3 Northern Illinois Average Frequency of Annual MaximumPrecipitation 1-Day to 10-Day Amounts2.6-4 Monthly Average of Severe Weather Occurrence -Joliet2.6-5 Tornado Summary for Illinois2.6-6 Monthly Wind Data From Weather Stations Near the BraidwoodSite2.6-7 Wind Data -Dresden Nuclear Power Station-35-Foot Level2.6-8 Wind Data -Dresden Nuclear Power Station-125-Foot Level2.6-9 Wind Direction Persistence (Single 22-1/20 Sector)Dresden Nuclear Plant Station -35-Foot Level2.6-10 Joint Wind Stability -Frequency Data -Dresden NuclearPower Station Data -35-Foot Level -Very Stable Conditions2.6-11 Joint Wind Stability -Frequency Data -Dresden NuclearPower Station Data -35-Foot Level -Moderately StableConditionsxxiii)a(Je_.5-23 12.5-24..5-25Z.5-29?.5-30.5-312.5-322.5-331.5-34?.6-142.E-152.E -162.6-172.6-182.6-192.6-202.6-212.6-222.6-232.6-24M. R.27/731/74 Supplement 4LIST OF TABLESTable No. Page2.6-12 Joint Wind Stability -Frequency Data -Dresden NuclearPower Station Data -35-Foot Level -Neutral Conditions 2.6-252.6-13 Joint Wind Stability -Frequency Data -Dresden NuclearPower Station Data -35-Foot Level -Unstable Conditions 2.6-262.6-14 Monthly Distribution of the Various Stability Classes -Hours -Dresden Nuclear Plant for the Period July 1971-June 1972 2.6-272.6-15 Monthly Temperatures Summaries -Joliet for the Period1941-1952 ? 6-282.6-16 Heating and Air-Conditioning Design Data -Joliet *-.6-292.6-16a Temperature and Precipitation Data From SurroundingNWS Stations 2.6-29A 42.6-17 Relative Humidity -Diurnal Variation and MonthlyAverage (Percent 2.6-302.6-18 Rainfall Data -Joliet for the Period 1941-19522.6-19 Snow, Sleet and Hail Data -Joliet for the Period1941-19522.6-20 Monthly Mean Number of Fog Days -Joliet2.6-21 Annual Average X/Q Values (sec/m3 )2.6-22 Seasonal X/Q Values for January-March (sec/m3)2.6-23 Seasonal X/Q Values for April-June (sec/m3 )2.6-24. Seasonal X/Q Values for July-September (sec/m3)2.6-25 Seasonal X/Q Values for October-December (sec/m3)2.7-1 Descriptions and Chemical Analyses of Strata Over TheCoal Seam, Section 28, T.32N, R.9E,.Will County, Ill.2.7-2 Chemical Analyses of Calcareous Loam Surface Spoilfrom Section 28, T.32N, R.9E, Will County, Illinois2.7-3 Mechanical Analysis of Strip-Mine Soil Materials2.7-4 Soil Analysis of Strip-Mine Soils in Will and KankakeeCounties, Illinois2.7-5 Common Plants of a Field Out of Cultivation for 2 Years2.6-312.6-322.6-332.6-342.6-362.6-382.6-402.6-422.7-612.7-622.7-632.7-642.7-65xxi vM.R.27/736/74 LIST OF TABLESTable No. Page2.7-6 Occasional and Localized Plants Occurring in a FieldOut of Cultivation for 2 Years 2.7-672.7-7 Common Plants of a Woodland Area 2.7-682.7-8 Occasional and Localized Plants Occurring in a WoodlandArea 2.7-712.7-9 Vegetation of Woodland and Hedgerow Roadside Communitieswithin the Braidwood Site 2.7-722.7-10 Common Plants of Recently Strip-Mined Areas 2.7-742.7-11 Occasional Plants in Recently Strip-Mined Areas 2.7-752.7-12 Common Plants of an Area Strip-Mined in the 1960s 2.7-762.7-13 Common Plants of an Area Strip-Mined in the 1950s 2.7-772.7-14 Common Plants of an Area Strip-Mined Prior to 1940s 2.7-792.7-15 Occasional or Localized Plants Occurring in an OldStrip-Mined Area 2.7-812.7-16 Mammal Signs Observed During Braidwood TerrestrialSurvey -Fall 1972 2.7-832.7-17 Herpetofauna Observed During Braidwood TerrestrialSurvey -Fall 1972 2.7-862.7-18 Sight Records of Avifauna During Braidwood TerrestrialSurvey -Fall 1972 2.7-872.7-19 Insects Identified During Fall Survey -1972 2.7-902.7-20 Pheasant Populations of Three-County Area 2.7-922.7-20a Anticipated Use by Water Fowl of Braidwood Cooling Lake 2.7-932.7-21 Trapping of Small Mammals During Braidwood TerrestrialSurvey -Fall 1972 2.7-942.7-22 Algae in the Kankakee River 2.7-952.7-23 Phytoplankton Data 2.7-96M. R..27/73xxv Supplement 1LIST OF TABLESTable No. Page2.7-24 The Percent Composition of Major Groups of AlgaeCollected Each Trip During The Braidwood Aquatic SurveyFrom October 1972 through May 1973. 2.7-1242.7-24a The Total Number of Individuals of All Species ofPhytoplankton (In Thousands) Collected At Each Of The-Samp~ing Transects During the Braidwood Aquatic SurveyFrom October 1972 through May 1973 2.7-1252.7-24b A List Of The Most Numerous Of The Species of AlgaeFound at Each Transect During the Braidwood AquaticStudy From October 1972 through September 1973. TheNumber of Cells/ml And The Major Group to Which theSpecies Belong Are Also Shown 2.7-1262.7-24c A List of the Phytoplankton Species Collected-in theKankakee River And Horse Creek, Braidwood AquaticStudy From October 1972 through September 1973 2.7-1272.7-25 Periphyton Of The Kankakee River 2.7-1302.7-26 List Of Periphyton Species Collected In The KankakeeRiver And Horse Creek From October 1972 Through 2.7-131September 1973 Il2.7-27 Diatom Data 2.7-1392.7-27a The Total Der-sity Of All Species of Diatoms At EachTransect Frori October 1972 Through April 1973 2.7-1992.7-27b A Comparisor: Of The Total Density Of Periphyton SpeciesOn Both Banks Of The Kankakee River At Transect 3 2.7-2002.7-28 Braidwood Zooplankton Data 2.7-2012.7-28a A List Of The Speci'es Of Zooplankton Collected DuringThe Braidwood Aquatic Study From October 1972 ThroughSeptember 1973 2.7-2531 12.7-28b Zooplankton Density For The Various Seasons Of TheBraidwood Study 2.7-2582.7-28c A List Of The Two Most Numerous Species of ZooplanktersCollected Each Trip During the Braidwood Aquatic StudyAt All Transects. Samples Were Collected From October1972 through May 1973 2.7-259M.R.2xxvi 7/7311/73 Supplement 1LIST OF TABLESTable No. Page2.7-29 Benthic-Macroinvertebrate.Data 2.7-2622.7-29a Total Number of Benthic Organisms at Each Transect 2.7-3142.7-29b Comparison of Numbers of Benthic Organisms at TheLeft Bank, Middle of the River and Right Bank of theKankakee River 2.7-3152.7-29c Numbers of Benthic Organisms Found in Three MajorTypes of Substrate In The Kankakee River 2.7-3162.7-29d A List Of The Two Most Dominant Benthic SpeciesCollected Each Trip In The Kankakee River and HorseCreek October 1972 Through May 1973 2.7-3172.7-29e List of Benthic Species Collected During the BraidwoodAquatic Study October 1972 Through September 1973 2.7-319I 12.7-30 Benthic Invertebrates Of The Kankakee River 2.7-3212.7-31 Macrophyton In The Kankakee River, Braidwood AquaticSurvey, Trip No. 5 -Nov. 3-4, 1972 2.7-3222.7-31a Macrophyton In the Kankakee River, Braidwood Aquatic Sur-Survey, Trip No. 24-July 9-14, 1973 and Trip No. 28- 2.7-324September 11-14, 19732.7-31b Species List of Macrophyton In The Kankakee River Braid-wood Aquatic Survey, October 1972 Through September 1973 2.7-3262.7-32 Species of Fish Collected In Horse Creek Ana The KankakeeRiver October 1972 Through September 1973 2.7-3272.7-33 Braidwood Aquatic Survey Fish Data By Trip For SevenSelected Species, Horse Creek 2.7-3292.7-33a Comparison of Seven Selected Species Of Fish FromKankakee River and Horse Creek 2.7-3342.7-33b Braidwood Aquatic Survey Fish Data Summary, KankakeeRiver 2.7-3352.7-34 The Average Condition Factor For Seven Selected SpeciesCollected In The Kankakee River 2.7-3362.7-35 The Average Condition Factor For Seven Selected SpeciesCollected in Horse Creek 2.7-337M.R.27/73xxvii 11/73 Supplement 1LIST OF TABLESTable No. Page2.7-36 Braidwood Aquatic Survey Fish Data 2.7-3382.7-37 Fish Egg and Larvae Survey -October 1972 -July 1973 IIBraidwood Aquatic Monitoring Program 2.7-3462.7-38 Diet of Kankakee Gamefish 2.7-3472.7-39 Species Diversity Values For Adult Fish, Zooplankton,Phytoplankton and Benthos For Braidwood Aquatic Survey 2.7-3482.7-40 Chemical and Bacteriological Analysis Of The KankakeeRiver -1972-1973. 2.7-3502.7-40a Chemical and Bacteriological Analysis of Horse Creek-1972 2.7-3542.7-41 Bacterial Levels In The Kankakee River and HorseCreek 2.7-3582.7-41a Seasonal Averages Of Selected Water Parameters For TheBraidwood Program Through May 1973 2.7-3592.7-42 Values of Biochemical Oxygen Demand For The KankakeeRiver 2.7-3602.7-43 Dissolved Oxygen Concentrations For The Kankakee River 2.7-3612.7-44 Concentrations of Heavy Metals and Sulfate For TheKankakee River 2.7-3622.7-45 Nutrients In The Kankakee River 2.7-3632.7-46 Miscellaneous Analyses Of Kankakee River Water 2.7-3642.7-47 Values Of Color, Turbidity And Visibility For TheKankakee River 2.7-3652.7-48 Water Survey For The Braidwood Cooling Lake 2.7-3662.8-1 Gross Beta Radioactivity in Airborne Particulates 2.8-82.8-2 External Gamma Radiation Measurement (Ion Chamber) 2.8-92.8-3 External Gamma Radiation Measurements (TLD) 2.8-102.8-4 Gross Beta Radioactivity in Water 2.8-11M.R.27/73xxviii 11/73. LIST OF TABLESTable No. Page2.8-5 Radionuclide Activities in Surface and Well WaterSamples Upstream of Dresden Station 2.8-122.8-6 Radiochemical Activities in Fish Samples Collectedat Dresden Lock and Dam Pool 2.8-132.8-7 Gross Beta Radioactivity in Bottom Sediments andAquatic Biota Collected near Dresden Intake Canal 2.8-142.8-8 Radiochemical Activities in Grass Sample AnalysisCollected in Area of Braidwood Station during 1971-1972 2.8-152.8-9 Radionuclide Concentration in Milk Samples From DairyFarms North of Dresden Station 2.8-172.8-10 Radiochenical Activities in Vegetable Samples from LocalFarms during 1971 2.8-192.8-11 Estimated Average Annual Genetically Significant Doseto the Population in Illinois, 1970 2.8-21Volume II3.0 THE PLANT3.3-1 Seasonal Variations of Cooling Lake System 3.3-63.4-1 Braidwood Station Cooling Lake Evaporation Rate 3.4-53.4-2 Estimated Monthly Variation in Discharge TemperatureCooling Lake Blowdown 3.4-63.5-1 Daily Average and Maximum Waste Stream Flows andExpected Isotopic Analysis Based Upon 1.0 CapacityFactor 3.5-153.5-2 Expected Radioactive Releases from Liquid RadwasteSystem for Two 1100 MWe Units at 100% Capacity Factor 3.5-173.5-3 Total Annual Release by Nuclide at 1.0 Capacity Factor 3.5-203.5-4 Annual Radwaste Releases 3.5-223.5-5 Estimated Annual Gaseous Radwaste System Release PerUnit 3.5-233.5-6 Additional Ventilation Released from Plant by Isotope 3.5-243.6-1 Seasonal Analysis of Kankakee River 3.6-4M.R.2xxix 7/73 Supplement 4LIST OF TABLESTable No. Page3.6-2 Well Water Analysis at Braidwood 3.6-53.6-3 Estimates of Average Effluent Analysis 3.6-6 2,43.6-4 Estimates of Maximum Effluent Water Composition 3.6-73.7-1 Illinois Emission Standards 3.7-33.8-1 Solid Radioactive Wastes 3.8-34.0 ENVIRONMENTAL.EFFECTS OF SITE PREPARATION, PLANT ANDTRANSMISSION LINE CONSTRUCTION4.1-1 Phytoplankton, Zooplankton, Periphyton, Benthos and 4.1-9AFish5.0 ENVIRONMENTAL EFFECTS ON PLANT OPERATION5.1-1 Summary of Temperature Characteristics of the Braid- 5.1-29wood Cooling Lake and the Kankakee River Blowdown5.1-IA Estimated Isotherm Areas Resulting From a Discharge 5.1-30Into the Kankakee River, acres5.1-2 Maximum River Temperatures as Specified by Water 5.1-31Pollution Regulations of Illinois5.1-3 Temperature Characteristics of Kankakee River Fish 5.1-325.1-4 Temperature Characteristics for Carp 5.1-345.1-5 Spawning Habits of Selected Indigenous Fish Species 5.1-35of the Kankakee River5.1-6 Estimated Time for Cooling to Various Temperatures 5.1-36in Braidwood Lake5.1-7 Dresden Plant Intake Screen Fish Mortality for Species 5.1-37also Found At The Braidwood-Kankakee River Site5.1-7A Monthly Variation in Surface Temperature Profile Of 5.1-38Braidwood Cooling Lake5.1-8 Anticipated Fogging from Braidwood Cooling Lake 5.1-395.2-1 Annual Average Concentration of Radionuclides Dis- 5.2-7charged into Kankakee River in Liquid Effluent fromTwo Units at Braidwood Stationxxx M.R.27/731/746/74 Supplement 2LIST OF TABLESTable No.5.2-2 Bioaccumulation Factors for Radionuclides in Fresh-water Biota5.2-3 Distance to Site Boundary from Release Point5.2-4 Radionuclides in Gaseous Effluents for Two Units atBraidwood Station5.2-5 Summary of Estimated Radiation Doses to Biota Exposedto Radioactive Discharges of Braidwood Station5.3-1 Estimated Radiation Dose to the Public by DirectRadiation from Braidwood Station5.3-1A Approximate Distance from the Center of the TurbineBuilding to the Nearest Residence and NearestPotential Pasture5.3-2 Summary of Estimated Individual Organ Doses fromOperation of Two Units at Braidwood Station5.3-3 Summary of Estimated Population Dose (Whole Body GammaExposure) from Operation of Two Units at BraidwoodStation5.4-1 Chemical Discharges of the Braidwood Station IncludingLeaching Effects5.4-2 Estimated Concentrations of Chemicals Dischargedto Kankakee River in August5.8-1 Percent of Kankee River Required for Maximum NetUse of 54 CFS Based on Historical River FlowsPage5.2-85.2-95.2-1025.2-115.3-95.3-9A 125.3-105.3-115.4-55.4-65.8-56.0 EFFLUENT AND ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAM6.1-1 Aquatic Analyses for the Braidwood Site Physical and 6.1-34Chemical Parameters6.1-2 Aquatic Analyses for the Braidwood Site Biological 6.1-36Parameters6.1-2A Pre-Operational Aquatic Monitoring Program 1974-75 6.1-38A 26.1-3 Braidwood Aquatic Survey -Biological Methods 6.1-396.1-4 Comparison of Hanford and Pasquill Stability 6.1-41Classification Schemes6.1-5 Description of Braidwood Fall Terrestrial Survey 6.1-42TransectsxxxiM.R.27/731/74 Supplement 4LIST OF TABLESTable No. Page6.1-2a Aquatic Parameters for the Braidwood Site 6.1-38a6.1-2b Marsh/Pond Area Studies (1974-1975), Braidwood StationTerrestrial Monitoring Program Summary 6.1-38f6.1-2c Summary of the Terrestrial Monitoring Program for theBraidwood Site 6.1-38g6.1-5a Description of Braidwood Winter Terrestrial Survey 6.1-43Transects6.1-5b Description of Braidwood Spring Terrestrial Survey 6.1-44Transects6.1-6 Preoperational Radiological Sampling Program for the 6.1-45Braidwood Site6.1-7 Typical Analytical Sensitivities for Radiological 6.1-46Monitoring6.1-8 Typical Gamma Spectroscopy Sensitivities 6.1-476.22-1 Proposed Chemical Effluent Monitoring in the Kankakee 6.2-11River6.2-la Summary of Temperature Characteristics of the Braidwood 6.2-13A I 4Cooling Lake and Kankakee River Blowdown.7.0 ENVIRONMENTAL EFFECTS OF ACCIDENTS7.1-1 Classification of Postulated Accidents and Occurrences 7.1-217.1-2 Atmospheric Dilution Factors X/Q At The Site BoundaryFor Accident Conditions (PSAR) 7.1-227.1-3 Radiological Data For Gaseous Isotopes 7.1-237.1-4 Summary of Accident Doses and Compariso"n With 7.1-24Regulatory Standards7.1.4a Population Accident Doses 7.1-24A 11,47.1-5 Expected Occurrence of Accidents 7.1-257.1-6 Atmospheric Dilution Factors (X/Q) at 50 Miles from 7.1-27Braidwood Station for Accident Conditions (PSAR)7.1-7 Summary of Accident Doses and Comparison with Regula- 7.1-28tory Standards at 50 miles from Braidwood StationM.R.27/73xxxi i 11/736/74 Supplement 4LIST OF TABLESTable No. Page8.0 ECONOMIC AND SOCIAL EFFECTS OF PLANT CONSTRUCTION AND OPERATION8.0 Estimated Annual Harvest and Income From Crops Produced 8.0-5on Agricultural Land Required for Braidwood StationCooling Lake8.1-1 Commonwealth Edison Company Revenue and Megawatt-Hours 8.1-2Sold by Class of Service, 12 Months Ended June 30, 1972xxxiiA6/74 Supplement 3LIST'OF TABLESTable No.. Page8.1-2 Braidwood Station Estimated Kilowatt-Hours and DollarValue by Class of Customer 8.1-38.1-3 Benefits from the Proposed Facility 8.1-48.2-1 Estimated Income from Construction and Operation ofthe Braidwood Station 8.2-28.3-1 Estimated Labor Required for Construction of theBraidwood Station 8.3-38.3-2 Employment by Industry within-Will County 8.3-48.3-3 Estimated Distribution of Regional Employment withinWill County 8.3-58.3-4 Estimated Braidwood Station Employment Payroll 8.3-68.3-5 Braidwood Station Income and Employment 8.3-78.3-6 Regional Employment due -to Operation of BraidwoodStation 8.3-88.4-1 Distribution of Proposed Braidwood Station EstimatedProperty Taxes by Taxing Unit for Tax Years 1976through 1981 (Excluding Real Estate Tax on Land) 8.4-28.5-1 Comparison of Gaseous Sulfur Emissions and ElectricityRequirements in Steelmaking 8.5-68.5-2 Comparison of Air Pollution Resulting from ElectricPowered Trains and Automobiles 8.5-79.0 ALTERNATIVE ENERGY SOURCES AND SITES*9.2-1 Estimated Cost Comparison Between Braidwood andAlternative III for Dam Construction and Land 9.2-13B139.3-1 Environmental Characteristic Comparisons 9.3-89.3-2 Summary of Plant Costs 9.3-1210.0 PLANT DESIGN ALTERNATIVES10.1-1 Braidwood Station Summary of Estimated Costs ofPhysicaliPlant Facilities for Cooling SystemAlternatives 10.1-20xxxiii M.R.27/732/74 Supplement 2LIST OF TABLESTable No.10.1-2 Braidwood Station Summary of Physical Facilities Costsfor Cooling Systems Alternatives10.1-3 Braidwood Station Operating Performance and Costsof Cooling System Alternatives10.1-4 Kankakee River Consumptive Water Use By BraidwoodStation10.1-5 Duration of Visible Plume Occurrence for NaturalDraft Wet Cooling Tower System10.1-6 Frequency of Visible Plume Occurrence for NaturalDraft Wet Cooling Tower System10.1-7 Duration Range of Ground Fog Occurrence for NaturalDraft Wet Cooling Tower System10.1-8 Duration of Ground Fog Occurrence for Mechanical DraftWet Cooling Tower System10.1-9 Frequency of Ground Fog Occurrence Mechanical DraftWet Cooling Tower System10.1-10 Chemical Salts Deposition Rates for Natural Draft WetCooling Tower Systems10.1-11 Chemical Salts Deposition Rates for Mechanical DraftWet Cooling Tower Systems10.2-1 Projected Intake Screen-Fish Mortality for theBraidwood Station, Large Cooling Lake Alternative10.3-I Excess Heat to the Kankakee River from CoolingSystem Alternatives10.4-1 Circulating Water Concentration for Cooling SystemAlternatives (concentration in mg/i)10.4-2 Blowdown Concentration at Discharge to River forCooling System Alternatives (concentration in mg/l)10.11-1 Cost Description -Plant Design Alternatives10.11-2 Summary of Data Used in Selection of Plant DesignPage10.1-2110. 1-2210.1-2410.1-2510.1-2610.1-2710.1-2810.1-2910.1-3010.1-3110.2-1110.3-610.4-610.4-710.11-310.11-712M.R.27/731/74xxxiv Supplement 2LIST OF TABLESTable No. Page11.0 SUMMARY BENEFIT-COST ANALYSIS11.2-1 Cost Description of Proposed Facility 11.2-211.2-2 Cost Factors 1l.2-5J212.0 ENVIRONMENTAL APPROVALS AND CONSULTATIONS12.0-1 Licenses and Permits Required for Braidwood Station 12.0-2M.R.2xxxv 7/731/74I Supplement 2LIST OF FIGURESVolume IFigure No.Page1.0 OBJECTIVE OF THE.PROPOSED FACILITY1.1-1 Load Duration Curves from 1968 through 19711.1-2 Reserve Margin1.1-3 System Demand and Resource Capability Compai1.1-4 Edison System Input/Output Diagram with BraUnit No. 11.1-5 Edison System Input/Output Diagram with BraUnit No. 2risonidwoodidwood1.1-161.1-171.1-181.1-191.1-202.0 THE SITE2.1-1 Location of Braidwood Site2.1-2 Braidwood Site Area2.1-3 Photographs of Braidwood Site and Strip Mine Areas2.1-4 Braidwood Site Cooling Lake2.1-5 Braidwood Site Exclusion Area2.2-1 Location of Towns and Cities within 10 Miles ofBraidwood Station2.2-2 Sector Designations and Locations within 10 Miles ofBraidwood Station for Demography Analysis2.2-3 Locations of Counties and Cities with PopulationsGreater than 25,000 within 50 Miles of Braidwood Station2.2-4 Sector Designations and Locations within 50 Miles ofBraidwood Station for Demography Analysis2.2-4A Land Use within 2 Miles of Turbine Building2.2-5 The Number of Milk Producing Farms and Cows within10 Miles of Braidwood Station2.2-5A Locations of Cows and Goats within 2 Miles ofTurbine Building2.2-6 Trends of Farm Size and Number2.2-7 Industrial, Transportation and Military Locations inVicinity of Braidwood Site2.2-8 Planned and Existing Nuclear Power Plants within65 Miles of Braidwood Station2.3-1 Regional Historic and Natural Landmarks in theVicinity of the Braidwood Site2.4-1 Northern Illinois Physiographic Province2.4-2 Region Geology2.1-32.1-42.1-52.1-62.1-72.2-542.2-552.2-562.2-572.2-57A2.2-5822.2-58A 122.2-592.2-602.2-612.3-72.4-382.4-39xxxviM.R.27/731/74 Supplement 2LIST OF FIGURESFigure No. Page2.4-3 Region Rock Strata (North-South) 2.4-402.4-4 Region Rock Strata (East-West) 2.4-412.4-5 Site Rock Stratigraphy 2.4-422.4-6 Major Geologic Structures 2.4-432.4-7 LaSalle Anticlinal Belt 2.4-442.4-8 Region Fault Identification 2.4-452.4-9 Plant Site Bedrock Contours 2.4-462.4-10 Location of Seismic Events 2.4-472.4-11 Cross Section of Road, Ditch and Dikes 2.4-482.5-1 Braidwood Region Hydrography 2.5-352.5-lA Bathymetric Features of Cooling Lake 2.5-362.5-IB Bathymetric Features of Cooling Lake 2.5-372.5-1C Bathymetric Chart of Kankakee River at Proposed Intake 2.5-38and Discharge2.5-ID Sampling Sites for Surface and Subsurface Soils 2.5-38A 122.5-2 Elevation of Piezometric Surface of Cambrian- 2.5-39Ordovician Aquifer in October 19712.6-1 Annual Wind Rose at Dresden -35-Foot Level 2.6-442.6-2 Annual Wind Rose at Dresden -125-Foot Level 2.6-452.7-1 Age of Strip Mining in the Braidwood Site Area 2.7-3682.7-2 Soil Distribution in Vicinity of Braidwood Site 2.7-3692.7-3 Vegetation Map of the Braidwood-Site Area 2.7-3702.7-4 Trends in Small Game Harvest in Illinois 2.7-3712.7-5 Aquatic Studies Conducted on Kankakee River 2.7-3722.7-5A The Percent Occurrence of Major Groups of Algae 2.7-373Collected in the Kankakee River (all transects combined)from October 1972 through May 19732.7-5B Percent Occurrence of "Infauna" and "Epifauna" in 2.7-374Benthic Samples2.7-6 Food Web for Kankakee River Game Fish Based on 2.7-375Braidwood Aquatic Study2.8-1 Dresden Station Radiological Monitoring Locations 2.8-222.8-2 Gross Beta Activity of Airborne Particulates- 2.8-23Coal City, IllinoisM.R.2xxxvii 7/731/74 Supplement 3LIST OF FIGURESVolume IIFigure No.3.0 THE PLANT3.1-1 Braidwood Station Plan3.2-1 Schematic Diagram for a Pressurized Water Reactor3.3-1 Braidwood Station Water Usage Flow Diagram3.4-1 Braidwood Cooling Lake3.4-2 Kankakee River Intake Structure3.4-3 Braidwood Station Proposed Discharge Structure3.4-4 Location of Intake and Blowdown Structures onKankakee River3.4-5 Braidwood Lake Surface Isotherms3.5-1 Braidwood Station Liquid Radwaste Flow Diagram3.5-2 Braidwood Station Gaseous Radwaste Flow Diagram3.5-3. Braidwood Station Ventilation Stack Diagram3.5-4 Braidwood Station General Arrangement Roof Plan3.9-1 Transmission Lines3.9-2 Route Map and Tower Profile, Braidwood -Joliet ROW3.9-3 Route Map and Tower Profiles, Braidwood -Crete ROWPage3.1-3.3.2-33.3-73.4-73.4-83.4-93.4-10123.4-113.5-253.5-263.5-273.5-283.9-93.9-1033.9-11M.R.27/731/742/74xxxviii Supplement 2LIST OF FIGURESFigure No. Page4.0 ENVIRONMENTAL EFFECTS OF SITE PREPARATION,PLANT AND TRANSMISSION LINE CONSTRUCTION4.1-1 Braidwood Site Construction Schedule 4.1-104.1-2 Braidwood Site Dikes and Drainage Pattern 4.1-114.1-3 Pipeline and River Screenhouse Area Plan 4.1-125.0 ENVIRONMENTAL EFFECTS ON PLANT OPERATION5.1-1 Representative Soils in the Lake Area 5.1-40 125.2-1 Schematic Representation of Radiation Exposure Pathways 5.2-12to Biota Resulting from Braidwood Station RadioactiveDischarges5.3-1 Schematic Representation of Radiation Exposure Pathways 5.3-12to Man Resulting from Braidwood Station RadioactiveDischarges5.3-2 Farms, Residences, and Topography within 2 Miles of 5.3-13 12Turbine Building6.0 EFFLUENT AND ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAM6.1-1 Locations of Aquatic Transects and Stations for the 6.1-48Braidwood Site6.1-2 Locations of Terrestrial Transects on Braidwood Site 6.1-496.1-3 Locations of Meteorological Monitoring Stations for the 6.1-50Braidwood Site6.1-4 Radiological Monitoring Stations for the Braidwood Site 6.1-516.2-1 Surface Isotherms from Computer Model for Sample Case 6.2-146.2-2 Surface Isotherms from Laboratory Model for Sample Case 6.2-156.2-3 Estimated Surface Isotherm in Kankakee River During 6.2-16February6.2-4 Estimated Surface Isotherm in Kankakee River During 6.2-17August6.2-5 Meteorological Tower Location 6.2-186.2-6 Annual Wind Rose at Dresden and at Argonne National 6.2-19 12Laboratory I6.3-1 Kankakee River Basin Gauging Station 6.3-5M.R.2xxxix 7/731/74 Supplement 3LIST OF FIGURESFigure No.9.0 ALTERNATIVE ENERGY SOURCES AND SITES9.2-la Schematic Location of Inputs to the Metropolitan Area9.2-1 Commonwealth Edison Company Outer Transmission System9.2-2 Alternate Generating Station Sites9.2-:3 Site Alternative I Near Illinois-Indiana Border9.2-4 Site Alternative II West of Kankakee9.2-5 Preliminary Site Development Alternate III, Lake Siteat Horse Creek9.2-6 Preliminary Site Development Atlernate III, Tower Siteat Horse-CreekPage9.2-149.2-159.2-169.2-179.2-189.2-1939 20M.R.27/1732/74xl 2.7 ECOLOGY2.7.1 TERRESTRIAL ECOLOGY2.7.
1.1 INTRODUCTION
The 4320 acre Braidwood site includes 1021 acres of cultivated fields,471 acres of fallow fields, 395 acres of open woodlands and 2433 acresof strip-mine spoil. The ecology of each of these areas is quite dis-tinct. The unmined areas are affected by past agricultural practicesand soil type. The mined areas are affected by the acidity and textureof the surface material, slope, height of ridges and the amount of timesince mining occurred. The type of reclamation practiced also affectsstrip-mined areas. This Section includes a discussion of the man-influenced and natural factors affecting the ecology of the site, followedby a detailed discussion of site areas and the animals of the site.2.7.1.2 MINING PRACTICESCoal has been mined in the Braidwood area for over 80 years.(') Thegeneral age of various stripped areas within the plant site are shownin Figure 2.7-1. Within the past 50 years, strip mining has replaceddeep mining in this area. The first strip mining within the boundariesof the plant site was undertaken about 30 years ago in Section 28 of ReedTownship, Will County. By 1947 the western half of Sections 33 and 28had been mined.(2) There was no additional mining in the Will County portionof the site until almost 1960. In 1950 the Peabody Coal Company builta tipple at its present location in Kankakee County (Section 6, EssexTownship), and began a full scale operation in Pit 11 at that time.By January 1, 1952, 532 acres in Kankakee County had been mined .3Initially, the mining within the site was done by tandem shovel anddragline and by straight dragline.(l/ In 1961, a bucket-wheel wasM.R.22.7-1 7/73 employed. (4) Since that time, the culm pile ridges have been higher andfarther apart with steeper slopes. The mining operation returned tousing a dragline in 1972.2.7.1.3 RECLAMATION PROGRAMReclamation of strip-mine spoil within the site began on an experimentalbasis in 1947 by the U. S. Forest Service as part of a program addressedto strip-mine spoil throughout the state.(5) Plantings initiated atthat time continued on a voluntary basis until 1962 when the State ofIllinois passed reclamation laws. For the past ten years, Peabody Coalhas had a systematic planting program. For the past three years, ridgeshave been topped so that the most recent spoil areas consist of longflat mesas separated by troughs, in contrast to the previous pattern ofalternating peaks and troughs with most of the surface consisting ofslopes.Plantings have included seeding with grasses and legumes by airplane andhand planting of trees and shrubs. During their reclamation program,Peabody Coal Company has altered the relative quantities of variousspecies planted as they have gained experience with successful plantings.Initially, large numbers of sycamore, red cedar and cottonwood wereplanted, but mortality was high. More recent plantings include primarilyblack locust, various pines, autumn olive and Russian olive, since thesespecies had been more successful. The cottonwoods naturally occurringin the area.have successfully invaded many areas of strip-mine spoil, butthose which were intentionally planted had a low survival rate.(1)2.7.1.4 SUCCESSIONThe climax community for the site is primarily tall-grass prairie withsome areas of deciduous forest. (2) However, there are now no climaxcommunities remaining within the site boundaries and all of the unmanagedM.R.22.7-2 7/73 natural communities are in some stage of succession towards climax. Thoseareas which originally supported deciduous forest had sandy soil and arenoted in Section 2.7.1.5.Fields that are taken out of agricultural production soon produce a densecrop of weeds. These are gradually crowded out and replaced by sod-forminggrasses. Forest trees may also become established since fire, which onceexcluded trees from the climax prairie, (6) is now controlled.Because sandy places are subject to severe wind erosion, forest coverhas been maintained in some areas. In Section 19, larger trees havebeen periodically cut so that the area might be called "open woods"with dense ground coverincluding numerous tree seedlings. This areais maintained in this condition to furnish wind breaks for the stripsof cultivated land without shading. If management practices stopped,the forest canopy would thicken.Soon after land has been stripped for coal, vegetation will appear onthe spoiI.(5'7,8,9) The types of vegetation that begin to appearare predominantly those with airborne seeds or those from the originaltopsoil that happened to be deposited at the surface of the spoil.The initial colonizers include tumbleweed and smartweed. These will bereplaced by such things as sweet clover, wild lettuce and various wildasters. Cattails may become established around ponds or where the watertable is at the surface. The early woody species innatural successionare cottonwood, sycamore, black willow and blackberry. The first grasscolonizers are barnyard grass, bluestem grasses and various threeawns.Depending on the soil conditions and the steepness of the slopes, thelength of time required to go from barren spoil to greater than 50%ground cover including some woody species may require 10 or more years.Trees on the slopes suffer severe losses due to gully erosion. Treesin the bottoms are frequently killed by siltation. In 3 to 10 years,the banks begin to stabilize by the natural invasion of herbaceousspecies unless the spoil is too toxic.M.R.22.7-3 7/73 Reclamation practices have disrupted natural succession on most strip-mine spoil of the site mined within the past 20 years. In reclaimedareas where seeded grasses have become well established, the herbaceousphase of natural succession has been reduced and the species diversityis low. In areas where planted legumes and woody vegetation have alsobecome established, the diversity is much higher and the result appearsto be the "speeding up" of natural succession.2.7.1.5 SOILSThe original soils of the site developed from two types of deposits,outwash water-laid sediments and glacial till, which are neutral tostrongly acidic and generally sandy.(l0 Wind erosion on bare fieldsis a definite problem in some areas. The drainage in many areas islimited and swamps were common until drained with ditches. Figure2.7-2 shows the distribution of soils within the site. The availableinformation for Will County 2) is more recent and more detailed than forthose counties bordering the site.(11,12) This detail has beenincluded on the map and in the following descriptions.1. Watseka loamy fine sand -Watseka loamy fine sand is adark, weakly developed, imperfectly oxidized Brunizemsoil formed under tall-grass prairie with 1/2 to 1-1/2percent gradient. Watseka varies from slightly to stronglyacid to a depth of 40 inches. It is low in nutrients.Water-holding capacity is low and the water table needs tobe maintained within the plant rooting zone. Wind erosionis a problem, and strips of sod should be maintained betweennarrow cultivated fields.2. Maumee fine sandy loam -Maumee fine sand loam is verydark, poorly oxidized soil. It is formed under wetprairie or marsh vegetation. It is classed as a Humic-Gley soil. Maumee is slightly acidic to neutral and isM.R.22.7-4 7/73 low in nutrients. For most crops, the water table should liemaintained at a depth of 2 to 3 feet during the growing season.Even when the soil is drained, the water table is often at orabove the surface in winter and spring.3. Pittwood fine sandy loam -Pittwood fine sandy loam i.s a dark,poorly oxidized soil, formed under marsh or wet prairie vege-tation. It occupies nearly level to slightly depressionalareas (less than 1 percent slope), and is classed as a Humic-Gley soil. It differs from Maumee by possessing a distinctB horizon. Pittwood is neutral to slightly acid. Water tableis high except where lowered by artificial drainage. Produc-tivity is moderately high, but the high water table oftendamages fall-seeded crops such as wheat and perennial legumessuch as alfalfa.4. Oquawka sand -This is moderately dark, well-oxidized soil thatdeveloped under mixed prairie and forest vegetation or encroach-ment of forest on prairie. Oquawka is classed as an intergradebetween Gray-Brown Podzolic and Brunizem soils. It is stronglyacid and low in available phosphorus and available potassium.Water-holding capacity is low and the soil is subject to droughtProductivity is low to moderate for most of the important cornbelt crops.5. Plainfield sand -Plainfield sand is a light-colored, well oxid-ized soil. It formed under deciduous hardwood forest. Thisslope is 1 to 18 percent. It is classed as Gray-Brown Podzolicgrading to Regosol. In general Plainfield sand is stronglyacidic, low in organic matter and plant nutrients and verysusceptible to wind erosion and drought. Productivity is lowfor general farm crops.M.R.22.7-5 7/73 The potential productivity of surface material left after mining operationsis largely detemnined by the toxicity and the texture of the material.After strip-mining operations, the surface material is a heterogenous masswhose physical and chemical properties are dominated by the characterof the strata overlying the coal. Of these strata, the topsoil, loess,glacial till, sands and soft shales are the most important for soil forma-tion because they are principal sources of particles two millimeters andless in size. In general, the higher the percentage of these particles,the greater the opportunities for successful reclamation. (3) A descrip-tion of strata overlying the coal seam within Section 28 of the siteis given in Table 2.7-1. The chemical analysis of nearby surface spoilsis given in Table 2.7-2.The percentages of various separates, i.e., sands, silt and clay, areimportant in determining the physical properties of soil material. Themechanical analysis of spoil material finer than 2 millimeters in dia-meter was determined for a limited number of samples by the Universityof Illinois Agricultural Experiment Station (Table 2.7-3).The spoil of the site area is among the most difficult calcareousspoil to reclaim in Illinois.(3) There is enough sand to. give it aslush-like consistency during wet periods and "mud" flows may occurin times of heavy rainfall. The ridges are high and steep and subjectto severe gully erosion. Upon drying, the surface becomes compact andcemented. This makes revegetation difficult. Seeds landing duringdry weather remain exposed on the surface crust until they are blownaway or washed down to the valley bottoms and deeply covered with silt.The chemical analyses (Table 2.7-4) of these soils provide informationconcerning the revegetation potential. The spoil of the site area isgenerally neutral to alkaline with satisfactory levels of availablephosphorus and available potassium for plant growth. Nitrogen andM.R.22.7-6 7/73 organic matter are generally lacking in fresh spoil. With time, nitrogenmay be introduced by rainfall or by naturally or artificially-establishedlegumes.The fungi, bacteria and other microorganisms are important in soilformation and development. Microorganisms are very low or completelylacking in the recently mined spoil.(3) The visible change of soilcolor of strip-mine spoil with good ground cover has been found to beone inch or less over 25 years. ()2.7.1.6 VEGETATION OF SITE AREASThe area within the site boundaries may be divided into two main cate-gories, stripped and unstripped lands. Those areas that have not beenstrip-mined consist of cultivated fields, fallow fields, woodlands andedge areas such as roadsides and ditch banks. The vegetation of thestrip-mined areas vary with the age of the spoil, the mining practicesemployed and the type of reclamation undertaken.Figure 2.7-3 is a vegetation map of the site. Descriptions of the vege-tation of major site areas follows.. These descriptions are based on ananalysis in October 1972 and May 1973 along the transects shown inFigure 6.1-2 and described in Section 6.1.4.3. In addition, off-sitetransects analyzed in October 1972 and May 1973 are also described.2.7.1.6.1 CULTIVATED FIELDSFarming in the area of the site is discussed in Section 2.2. Althoughsoybeans were the major crop near the construction site in Section 19 ofReed Township for 1972, crop rotation is the usual practice. Otherthan the cultivated crop, vegetation in these fields is limited largelyto widely scattered weeds such as black nightshade, common thistle,asters and morning glory.M.R.22.7-7 7/73 2.7.1.6.2 FALLOW FIELDSThe fallow field analyzed has been out of cultivation for two years andis located in the NE corner of Section 20 of Reed Township. The last cul-tivated crop was probably wheat. Present vegetation, composed of annualsand herbaceous perennials, is representative of primary successional stages(Tables 2.7-5, 2.7-6, 14.0-1 and 14.0-9). Plant cover (that percent of thetotal area covered by standing vegetation) is about 60% in the fall and 50%in the spring with some of the remainder being covered with dead plant litter.Frostweed and alfalfa were found in localized stands and late boneset andcommon ragweed were the most evenly distributed plants. The fallow fieldsalong the western portion of the site appear to be of similar age and compos-ition. Those east and north of the site appear to have been out of cultiva-tion longer and support extensive grass cover and some woody vegetation.2.7.1.6.3 WOODLANDSThe woodlands analyzed are located in the NW corner of the site in Section 19of Reed Township and consist of hedgerows approximately 100 to 150 feetwide situated between cultivated fields and other wider areas that serve aswindbreaks to minimize wind erosion. They are located primarily on sandysoils. The canopy cover has been kept open by thinning out the larger trees.It is estimated (annual ring counts of cut stumps) that the larger trees areabout. 40 years old. The thinned canopy is approximately 35 to 40 feet highand has enabled the development of a vigorous understory and ground cover withabout 75% plant cover in the fall and 60% in the spring. Almost all of theremaining area is covered with dead plant litter, and there is essentially nobare ground in these woods. Commonly occurring ground cover species in thesewoodlands are summarized in Tables 2.7-7 and 14.0-2, and less frequentlyoccurring representatives are listed in Table 2.7-8. Spring flowering plantsare summarized in Table 14.0-9. The overstory vegetation is predominantlyred and white oak. Smaller oaks, sassafras, prairie willow and hazelnut com-prise the understory. Many oak and hazelnut seedlings are found in the groundcover in the open areas. Both the willows and the cinnamon fern are localizedM.R.22.7-8 7/73 in dense stands. This area appears representative of other unmined woodedareas of the site environs. In some woods the canopy is thicker than inthe areas analyzed and there are some areas of scattered trees included inwoods on the vegetation map, Figure 2.7-3.2.7.1.6.4 EDGE AREASMost roadways in the site area are unpaved (dirt or gravel) access roads.They are commonly bordered by deciduous woodland areas or hedgerowsnext to-cultivated fields. In areas that have been strip mined, road-sides are generally bare. Drainage is facilitated by runoff ditches,that add considerably to edge vegetation.Vegetation along roadsides in the strip-mined areas themselves isalmost nonexistent. Occasionally, individual plants of Russian thistle,goosefoot, aster or goldenrod may be found. Tree-lined roadside com-munities in unmined areas, however, are often dense and quite diverse(Table 2.7-9). The dominant overstory species for hedgerow communitiesare red oak and eastern cottonwood. Osage orange, silver and sugarmaples are occasionally borders. Lombardy poplar has been planted aswindbreaks in a few areas.The vegetation along railroad lines is sparse and mostly limited tocomposites and grasses. Various wild asters, goldenrods, beggars tick,dandelions and chickory are the common composites. Foxtails, threeawnsand panic grass are the more frequent grasses. Occasionally, clumpsof alfalfa, lamb's quarter and bindweed are also found. The treespecies associated with these lines at the site are cottonwood andblack willow. These usually are found in drainage ditches near thetracks.Many of the ditches found along roadsides, railroad tracks and betweenfields contain plants representative of marsh areas. The most commonM.R.22.7-9 7/73 vegetation is the broad-leaved cattail and the common reed. Some ofthe more poorly drained areas have dense stands of these two plants.Sandbar willows and cottonwoods are the usual woody members in theseareas.2.7.1.6.5 MARSH AREASIn the immediate vicinity of the site there is only one large marsharea located 1.5 miles southeast of the southern boundary in Section 8of Kankakee County. This is a 10 acre field which has been allowed to gofallow due to the high water table and poor drainage. A transect wasestablished in this marsh in the spring of 1973 to evaluate the effect offlooding on a previously cultivated area (Tables 14.0-3 and 14.0-9).Marshes within the site boundary are occasional and not extensive. Mostare located in poorly drained troughs within the strip-mined areas.Vegetation within these marshes has been analyzed as segments alongestablished transects within the strip-mined locations of the site(Tables 2.7-13, 2.7-15, 14.0-7 and 14.0-8). Intensive studies of theseand other marsh areas of the site is planned in a continuing monitoringprogram in 1974 and 1975.The dominant vegetation of the marsh areas is the broad-leaved cattailand the cormmon-reed. Older and more established communities are charac-terized by nearby cottonwood and sandbar willow stands. Peripheral vege-tation often includes Indian grass, scouring rush and milkweed as wellas a variety of asters, goldenrods and other composites. Marsh areas inunmined portions of the site have been reduced due to drainage.2.7.1.6.6 AREAS RECENTLY STRIP MINEDThe topography of these recently mined areas is different from otherareas because the ridges have been topped. The spoil consists of rows100 to 200 feet across that are essentially flat. These are separated bydeep gullies with 300 to 400 slopes. The troughs are silting in so thatM.R.22.7-10 7/73 there is a flat bottom of varying widths. Many of the troughs containintermittent ponds.Vegetation is sparse and about 80% of the ground is bare. The vegetationof the flat-top areas is dominated by those species planted duringreclamation. This is particularly true on the older areas where alfalfais dominant with lesser amounts of sweet clover (Table 2.7-10 and 14.0-4).The seeded bromegrass has not been as successful. The principal naturallyoccurring plants are Russian thistle, goosefoot and foxtail. The treeshave been systematically planted on the tops. Black locusts are thelargest of the planted trees and are doing well.Almost all vegetation on the slopes is Russian thistle (tumtbleweed). Itis quite localized forming relatively dense cover in some slope gullieswith large bare areas in between. Piles of unattached tumbleweeds havecollected in wind-shaded areas. Due to siltation the trough floors arelargely devoid of vegetation.In the most recently stripped areas where no reclamation plantings haveyet been made, the vegetation is very sparse and consists primarily ofcrabgrass, smartweed and goosefoot. The diversity is higher than inother areas of the transect, however, and this is where many of the specieslisted in Table 2.7-11 were located.2.7.1.6.7 AREAS STRIP MINED IN 1960'sThe area analyzed was stripped between 1962 and 1965 using the bucketwheel. The ridges are high and narrow. Slopes are long and range from200 to 450 with numerous gullies and erosion is severe. There are iso-lated mounds of shale scattered throughout the area.About 80% of the area is bare. The vegetation of the high ridges isprimarily grass, alfalfa and clover (Tables 2.7-12 and 14.0-5).Small amounts of Russian thistle and alfalfa are found on the longslopes. The troughs support a good stand of vegetation except whereM.R.22.7-11 7/73 siltation is a problem. There are some areas of more gently rollingtopography and the greatest diversity occurs in these areas. Bigbluestem grass, cottonwood, quaking aspen, goldenrod, Russian thistleand aster are commonly found. There is also some moss. Tree plantingswere not very successful in this area.The combination of poor soil conditions and long steep ridges have madethe establishment of vegetation difficult. The scattered areas ofshale are totally barren. There are occasional spots where originaltop soil was placed on the spoil. Though the soil is sandy, theseareas support a solid stand of bromegrass even where the slope exceeds300. In the remainder of this area, however, succession towards per-ennial vegetation is occurring very slowly.2.7.1.6.8 AREAS STRIP MINED IN 1950'sThe topography of these areas is characterized by rounded ridges wornsmooth by weathering and erosion. Slopes of approximately 150 to 300join to form rounded and well drained gullies. A few large ponds arelocated in the lower regions. Some of these have developed marshes alongsome of the shores. The area analyzed is located off-site in the southeastern corner of Section 18, Kankakee County. This location was selectedfor analysis because of the age of the area and because natural successionhad been largely disrupted due to heavy bromegrass reclamation seedings.The vegetation in this area is about 50%. However, approximately 90%of this cover is comprised of bromegrass with the remaining plants beingwidely scattered (Tables 2.7-13 and 14.0-6). Woody vegetation is clearlyseparated on the basis of water requirements; box elder is only foundon the well drained slopes, cottonwoods are found in the troughs and(M.R.22.7-12 7/73 black willows are only found next to the pond edges. Although theseeded bromegrass has largely disrupted natural succession, a largevariety of herbaceous plants that are representative of primary success-ional stages are present along ridges and slopes where the grass coverhas not become firmly established.Marsh communities are dominated by the broad-leaved cattail and blackwillow. Threeawn grass and sedges are frequent in some drainage troughsleading into the marsh areas. Spike-bulrush, great bulrush and pond-weed are commonly found interfacing the pond and marsh communities andin the shallow pond edges.2.7.1.6.9 AREAS STRIP MINED IN THE 1940'sAs shown on Figure 2.7-1 there are areas both around and within thesite that were mined in the 1940's. Most slopes are between 150 and350 and revegetation is quite complete. There are some areas withinthe plant site (Section 28, Will County).that were part of the Universityof Illinois Agricultural Experiment reclamation program that started in1946. (5)Along Transect 3 in the southwest corner of Section 21 the plant cover isabout 75% in the fall and closer to 50% in the spring (Tables 2.7-14and 14.0-7). Much of the remaining area is covered with dead plantlitter. The greatest cover and diversity is in the troughs. Wherethe water table is high or there are ponds, marsh plants includingrushes and cattails have developed. In other troughs much of thearea not covered by high plants or litter is covered with moss oralgae. On the slopes and crests the vegetation is primarily alfalfa,M.R.22.7-13 7/73 sweet .lover and prairie threeawn grass. Various weeds such asgoldenrod, cocklebur and ragweed are scattered on these areas. Cotton-woods are scattered throughout the area and there are localized densestands of sumac and willow (Table 2.7-15). There are still extensivebare patches that appear to be related to soil conditions along somehigher ridges.Partially wooded areas (Table 14.0-8) with fairly extensive canopycover are found along Transect 9 in the south-central portion ofSection 21 (Figure 2.7-1). Black willow, black locust and quakingaspen are commonly found. Canopy height is about 20-30 feet. Springground cover is approximately 40% with most of the remaining areacovered with plant litter. The greatest diversity is found in thesewooded sections of older strip-mine areas. Wood climbers such aspoison ivy, virginia creeper and frost grape are common in localizedareas. Occasional stands of black raspberry are found on the slopesand in some troughs. Sweet clover and various composites are commonon more open slopes and hill crests.This area is similar to other spoil areas of comparable age such asthose in the several recreation club areas near the site.2.7.1.7 ANIMALS OF THE SITEThe purpose of this Section is to describe the major terrestrial animallife of the site and to assess the impact of plant construction andoperation. The descriptions include mammals, reptiles, amphibians,M.R.22.7-14 7/73 birds and insects. Important species are discussed individually.Invertebrate organisms are included primarily because of the potentialsignificance in altering wildlife habitat by plant pests and parasites.2.7.1.7.1 MAMMALSThere are several species of mammals now inhabiting the site. Personnelof Peabody Coal Company reported finding evidence of numerous smallrodents, woodchuck, rabbit, muskrat, beaver, raccoon, coyote, fox anddeer in the strip-mined area.() Mammal signs noted during the 1972fall survey and the 1973 winter and spring surveys (See Section6.1.4.3.1) are listed in Tables 2.7-16, 14.0-10 and 14.0-11, respec-tively. These observations included all but the coyote noted by Pea-body personnel and some other species, some of which occur in strip-mined lands. These lists are consistent with those reported in strip-mined lands elsewhere in Illinois.(13,14) Other species that mightbe expected include the eastern chipmunk, long-tailed weasel and bats.The striped skunk which was found outside the stripped lands may alsoinhabit the area.The strip-mined spoil habitat is distinctly different from that of thesurrounding agricultural lands, though some species appear equally welladapted to both. The agricultural lands of the site furnish well tilledsoil, extensive seeds and edge areas with ditches, trees and shrubs.Mammals well adapted to this habitat are burrowing forms or those thatnest in tall vegetation. There are relatively few trees of sufficientsize in the area to furnish habitat for most tree dwelling species.The agricultural land habitat for wildlife is extensive in Illinois,but the edge areas of the site are superior to that occurring generallybecause of the overgrown drainage ditches, woodlands and fallowfields that are around the mined area.M.R.22.7-15 7/73 The strip-mined spoil furnish habitat to those forms requiring access tostreams, lakes or marshes. These include such fur bearers as the musk-rat, beaver and mink which are, therefore, primarily confined to thestrip-mined lands of the site. As forest and shrub cover improve onspoil banks, those species preferring woodlands such as various squirrelswill become more frequent.Most species of mammals occurring on the site are discussed on an indivi-dual basis in Section 2.7.1.7.5.2.7.1.7.2 AMPHIBIANS AND REPTILESThe principal interest in herpetofauna at the site is in terms of foodfor larger predators such as raccoons or as components of aquatic food-webs. Expected forms included small lizards, snakes, turtles, frogs andsalamanders. A herpetofaunal survey on land stripped for coal 20 to 30years previously in southern Illinois showed that a majority of speciesin the vicinity (especially semi-aquatic species) successfully invadedthe new environment, althou h small and secretive ground-dweliing specieswere poorly represented. 15? There are no poisonous snakes or dangerousreptiles known in the area.During the fall and spring surveys, some evidence of herpetofauna wereobserved (Table 2.7-17 and 14.0-12). However, many are not active in thefall season or during the cool, damp days of early spring (see footnote,Table 14.0-12).All of the herpetofauna collected are widespread over most or all ofIllinois. None are rare or endemic. The large number of plants withwestern affinities indicate that a number of western animals may beexpected. Indeed four of the eight subspecies of herpetofauna arecharacteristic of the great plains and prairie peninsula, but sincethese forms are widespread in Illinois no definite western affinitiescan be assigned this assemblage without further data.M.R.22.7- 16 7/73 The greatest numbers of diversity were observed in the area strip minedin the 1940's (Table 14.0-12) Frogs were also observed in unminedmarshes and drainage ditches.2.7.1.7.3 AVIFAUNABirds of the Braidwood site are described in terms of typical speciesand populations for various types of habitat occurring at the site;and raptorial birds. Game birds are discussed in Section 2.7.1.7.5.Actual observations are shown in Tables 2.7-18, 14.0-13 and 14.0-14.A combined total of 58 species of birds were recorded during the spring1973 survey on (and near) the ten transects. Table 14.0-14 summarizesthe collection site and habitat of each species. From these datafew biogeographic affinities to the assemblage are evident. Lessthan one-half have their breeding range in the northern U.S. and Canada;the majority of the other portion breed over most of the United States.Only one characteristic western species, the western meadow lark, wasnoted.Comparisons of data collected at each site indicate that avian diversityis least in fallow fields, recently strip-mined areas and areas stripmined in the 1960's. The greatest diversity is found in marshlandsand areas strip mined in the 1950's and 1940's. Based on mined sitesalone, areas stripped in the past decade support little diversity whilethose stripped in the fifties and earlier support considerable diversity.This suggests that 15-20 years are required for mined areas to return toa reasonable productivity for birds.Based on Table 14.0-14 the bird fauna in areas strip mined in the 1950'sconsists predominantly of those species characteristic of open or edgehabitats (55%). This correlates with the fact that most of the vegeta-tional cover is bromegrass. Woodland and edge species predominate (57%)M.R.22.7-17 7/73 in the older stripped areas of the 1940's. As would be expected thesparse avifauna from areas stripped in the 1960's, and areas recentlystripped are all characteristic of open and edge habitats.A. Typical Bird Species and PopulationsGraber and Graber(16) provided a comprehensive guide to thetypical species for potential occurrence in the northern andcentral portions of Illinois. The study periods were 1906-1909and 1956-1958. Information contained in the Graber publicationprovides the basis for the avifauna data discussed herein.Most of the changes in Illinois bird populations in that 50-yearperiod were associated with changes in available habitatrather than in populations associated with a particular habitat.Therefore, a limited extrapolation of data to the Braidwood siteseems appropriate. Illinois was divided into three zones(Northern, Central and Southern). The Braidwood site areais located in the Northern Zone.Partly because of a breakdown in territorial behavior that occursin winter, bird populations at that time of year tend to congre-gate in small areas. Therefore, large areas of a particularhabitat may be void of birds, because the bird population isconcentrated in relatively small areas. In winter, birds alsotend to range farther and to be less restricted to a particularhabitat than in summer. The avifaunal characteristics of a givenhabitat are thus less clearly defined for winter than summer.Of the 20 types of habitat covered in random strip census forbirds, five were selected as being most typical of the Braid-wood site; cornfields, fallow fields, forests, marshlands andshrub-grown areas. Data for each of these areas are the basisfor the following discussion.(16)M.R.22.7-18 7/73
- 1. Cornfield HabitatThough a large number of species of birds occurred incornfields, most are found infrequently. The only oneregularly found in cornfields was the prairie-horned lark.The total bird population density was also quite lowwith slightly less than one bird/acre being found insummer.In winter, the cornfield avifauna is an interestingcombination of prairie and shrub or forest-edge species.For most of the winter birds, cornfields must be marginalforaging habitat, for few species were found with greatregularity in these fields. Important species of thiswinter habitat from the standpoint of numbers of indivi-duals seen or frequency of sightings, were the crow inmost types of cornfields; the mourning dove, bobwhite andchickadee in hand-picked cornfields; and the Lapland long-spur and prairie-horned lark in mechanically picked cornfields.Total population densities were less than 0.5 birds/acre.Soybean fields support an avifauna similar to that ofcornfields.2. Fallow Field HabitatAn average of 1.5 birds/acre were found in this habitatin summer in Northern Illinois. The eastern meadowlark,mourning dove, redwinged blackbird and prairie-horned larkoccurred with high frequency in this habitat. In winter,there were around 2.0 birds/acre with prairie-horned larks,ringnecked pheasants and tree sparrows being the mostfrequent.M.R.22.7-19 7/73
- 3. Forest HabitatAs in other habitats, there were marked year-to-yeardifferences in bird population densities in forest. Forwoods with understory in Northern Illinois, the number ofbirds per acre ranged from 1.1 to 2.2. Abundant speciesinclude chickadee, brown-headed cowbird, red-eyed vireoand cardinal.The Illinois woodlands sampled in winter were high in thenumber of species and also in numbers of birds. Totalbird populations in different winters varied from 2.4 to2.9 birds/acre. In the two study periods, at least 48species of birds occurred in the forest strips censusedin winter. Among species frequently found were the junco,tree sparrow, chickadees, blue jay, goldfinch and red-bellied woodpecker.4. Marshland HabitatThe marshes censused were low wetlands in pastures ofnortheastern Illinois. Vegetation consisted of sedges andcattails at the margins of open water. The associatedavifauna were the most specialized of any habitat sampled.Summer marshland population densities varied from 4.9 to7.4 birds/acre. Redwinged blackbird, grackle, black tern,swamp sparrow and yellow-headed blackbird are commonspecies in this habitat.5. Shrub-grown HabitatIn shrub-grown area, the dominant features are deciduousshrubs under 10 feet in height and intermittent openM.R.22.7-20 7/73 areas of grass and weeds. This habitat was picked asbest approximating stripped areas. However, only areasof the Braidwood site mined in the 1940's could be con-sidered shrub-grown. The study found an average of 4 to8 birds/acre with field sparrow, red-winged blackbirdsand American goldfinch being the most common. No speciescomprised more than 20% of the total population.Shrub areas also had a very high winter population, butthe diversity was less. The tree sparrow, house sparrow,bobwhite and slate-colored junco were the most abundantin this habitat during winter.B. Raptorial BirdsThere has been a marked and consistent decline in raptor popu-lations in Illinois during the last 70 years as determined bythe winter census.(l6)Because the decline in raptor populations is shown particularlyamong the less wary species and those are the species mostlikely to be encountered by man, it is suggested that man maybe directly responsible for the decline.The decrease in hawk populations is probably due to both shoot-ing of hawks and destruction of habitat. The effect of habitatdestruction 'is difficult to evaluate because there is notsufficient statistical data on the extent of habitat change inIllinois. Also, the total effect of a change in habitat onany one species of raptor is virtually unknown.M.R.22.7-21 7/73 Since 1900, the laws concerning protection of hawks and owlsin Illinois have changed greatly. Until 1919, there was noexplicit protection for any species of hawk. In 1919 mostraptors gained legal protection, except the accipiters, pere-grine falcon, pigeon hawk and great horned owl. These wereleft unprotected until 1959, when the Illinois legislaturepassed a law protecting all species of hawks and owls.Important birds of prey occurring in the northeastern portionof Illinois are: sharp-shinned, Coopers, red-tailed, red-shouldered, roughlegged and sparrow hawks; horned, barred,long-eared and short-eared owls.2.7.1.7.4 INSECTS AND PLANT PESTSInsects are an important component of food chains. They comprise asubstantial portion of the diets of birds (especially during the nestingseason), mammals such as skunks and bats and most reptiles and amphi-bians;. In recently stripped areas, grasshoppers were noticeably abundanton the almost barren spoils. In other areas, the diversity was muchgreater. Significant populations of mosquitoes occur in the marshy areas,woods and older strip-mine ponds of the site.Certain conspicuous pests or parasites of vegetation are worth mention-ing because of their effects on site ecology. Certain areas at the Braid-wood tract are forested and pests of forest trees are thereby important,e.g. tent caterpillar, elm-span worm and other insects capable ofdefoliating forest trees and the fungi causing diseases of trees suchas Dutch elm disease. During the site surveys (Tables 2.7-19 and14.0-15), extensive defoliation of sweet clover in stripped areas wasnoted. Fall web-worm and Dutch elm bark beetle were also causingobvious trauma. No other serious infestations of insects were discovered.M.R.22.7-22 7/73 2.7.1.7.5 IMPORTANT SPECIESImportant species that are commercially or recreationally valuableinclude small game, deer, waterfowl and fur bearing mammals. Smallrodents are important as a food supply to larger predators and areindicators of habitat change. The following discussion includes thosespecies reported within the site during the fall, winter and sprin)surveys and some notable species reported Qn the site in the past.A. SMALL GAMEFigure 2.7-4 depicts a composite of trends in small game har-vests in Illinois. Each species is discussed below.1. Ringnecked PheasantThe pheasant is a bird of agricultural lands.(17) Optimalland use is around two thirds in cultivated row crops, onefourth in hay and the remainder in brush, woods and brushyfence rows. The daily range generally does not exceed halfa mile or the seasonal range, one mile. Nests are builtprimarily in grass (except pasture) and are generally with-in 100 feet of a change in vegetative type. In winter,many are found in marshes and sloughs. Foods consistprimarily of grains. A number of common weed seeds arealso eaten. Grasshoppers are a significant portion of thediet for chicks.The portion of Illinois around the site is good pheasanthabitat compared to other areas in the state.(18) An annualaverage of 66 birds/t000 acres is harvested by hunters.This may represent a sizable portion of the total popula-tion because there is less than one bird taken per huntertrip.M.R.22.7-23 7/73 Trends in abundance, obtained in the years 1958, 1963 and1968 for the three county area around the site indicatesignificant decreases in pheasant populations during thatperiod, as shown in Table 2.7-20. The decline in abundanceof pheasants in Illinois probably resulted from the rapiddecrease in acreages of hays and other suitable nestinghabitats due to conversion to major cash-grain crops:corn and soybeans. Because of good edge cover, the siteshould be good pheasant habitat. The strip-mined landsprobably do not support a sizable pheasant population.2. BobwhiteThe bobwhite is also a bird of agricultural lands but re-quires more grassland and woody cover.(17) The daily rangeis only one-eighth to one-quarter of a mile and the major-ity of nests are located within 50 feet of roads, paths orsimilar openings in broomsedge, woodlands, fallow fields orhedgerows. Except during mating season, the bobwhite isgregarious. Grains and common weed seeds are importantfoods for the bobwhite.In the three county area the average annual hunter harvestis 18 birds/lO00 acres.(18) In contrast to pheasant popu-lations which are negligible in the southern part of thestate, bobwhite populations there are. 10 to 20 times that ofthe site region. The Braidwood Site is located in thenorthern fringe of the bobwhite range, but the mixedawoodsand cultivated fields of Section 19 are good habitat asevidenced by a covey of over 20 birds flushed during thefall survey. Stripped lands of the site representmarginal bobwhite habitat.M.R.22.7-24 7/73
- 3. Cottontail RabbitThe cottontail is the most popular small game animal in theUnited States.(17) It is well adapted to agriculturallands and thrives where cropland, grassland and woodlandare about equally distributed. Mixed grass and legumestands, cattail-covered marshes and shrubs or brushpilesare advantageous. The normal daily range is less thanthree acres, and the annual range is less than 20 acres.The nest is built on top of the ground-and preferred covertypes are grasses or legumes. Availability of shrub orbrush for protected nesting and winter cover is the primarylimiting factor for the cottontail. Food is not a problemin most areas because there is little vegetation or plantsit will not eat.In the tri-county area, the average annual hunter harvestis estimated at 83 rabbits/l000 acres.(l8) Assuming theharvest is one third the total population,(I) there areapproximately 1000 rabbits during the fall within the non-stripped lands of the site. This estimate assumes theaccuracy of the two estimates above and that the site landsare typical of the counties. The edge areas of the siteare excellent for cottontail production. The older strip-mined lands would appear to supply good edge areas wherethey contact cultivated fields, but much of the interior ofthe spoil probably supports a smaller population.4. SquirrelsOf the tree squirrels, the grey squirrel is probably notsignificant at the site due to the lack of good den treesM.R.22.7-25 7/73 and closed forest canopy. The fox squirrel is more toler-ant of open areas and does quite well in agricultural landsutilizing corn cribs and barns as well as trees.(17) Thethirteen-striped ground squirrel is a prairie animal fairlywell adapted to agricultural lands, particularly grass-grown fence rows and other edge areas.(20s2l) It is a sol-itary burrowing diurnal mammal that hibernates. Primaryfoods include grasshoppers, other insects, mice, frogs andeggs. Some vegetable matter is eaten.The average annual hunter harvest of squirrels in the three(18)county area is 41 squirrels/l00 acres. Of these,around 5% are grey squirrels with the remainder being foxsquirrels. Strip-mined areas will not furnish good treesquirrel habitat until some large trees are 13"The thirteen-striped ground squirrel has been reported inother Illinois strip mines(14) and one has been observed inan edge area near the site during the fall survey period.5. Mourning DoveThe mourning dove, a very important American game bird, iswell adapted to farmland.(17) Optimal land use for doveincludes windbreaks several rows thick next to grain fields.The dove builds nests 15 to 20 feet above the ground withconifers being preferred in early spring and broadleafedtrees in late summer. Ponds or other open surface watersare important as water sources. Mourning doves are mono-gamous, share in incubation and produce more than one broodper year. Seeds compose 98% of their diet.(17)The average annual hunter harvest in the three county areais 47 birds/lO00 acres.(18) However, the average number ofbirds/hunter trip is higher than for other small game,M.R.22.7-26 7/73 indicating that a smaller portion of the total population isbeing harvested due to low hunting pressure. The agricul-tural lands of the site offer good dove habitat as evidencedby the fall and spring site survey. The southern portion ofthe state is more heavily forested and is a better dove habi-tat than the site region. As tree cover improves on strippedlands, the habitat will be improved, but on much of thestripped lands of the site, there are currently insufficientnesting trees and food supply for good dove habitat.B. BIG GAMEThe only big game in the area of the site is the white-taileddeer. The white-tail often maintains higher productivity wherecropland, grassland and second-growth woodlands are evenlydistributed.(17) The annual range is only 1.5 miles for manyand the daily range for most is one fourth mile in winter.Breeding takes place in late fall and fawns are born in May orJune. The extent of antler growth is indicative of food con-ditions with spike bucks being numerous in poor areas. Foodinclude trees, shrubs, forbs and nuts with variety being essen-tial for good nutrition. Grasses generally are not eaten.Foods such as oaks, cherries, elder, spruce and pines lead tostarvation when eaten alone for long periods. A 150-pound deerrequires around 10 pounds of good browse per day.Based on deer population estimates in southern Illinois,(22) theunmined areas of the site probably support 2 to 10 deer/squaremile with the higher densities occurring in the more wooded areas.Three were sighted during the fall survey along the wooded edgearea on the west side of Section 30. The older strip-mine areasappear to be good habitat also and the extensive evidence of deerin the area mined in the 1940's (Tables 14.0-10 and 14.0-11)M.R.22.7-27 7/73 indicates a high population density. More recent areas wheregrass has become well established or which are primarily bareare not good deer areas.C. WATER FOWLIllinois remains one of the leading states for migrating water-fowl. Mallards are, by far, the dominant species comprisingabout 65% of all ducks concentrating in the Illinois andMississippi river valleys. Important waterfowl species of thethree-county area include the Canada goose, mallard, pintail,black duck, teal, shoveler, widgeon, scaup and wood duck.Illinois Natural History Survey biologists have studied water-fowl ecology and distribution in the state for a period of 30years by means of periodic aerial surveys during fall andspring migrations, and winter surveys in early January. Theyhave banded over 125,000 ducks and thousands of geese, and onthe basis of band recoveries, mapped migration routes throughIllinois. Ground observations and radar surveillance have beenused to determine the routes of migration through the state.The number of waterfowl that might be expected to use the M.R.Braidwood Station cooling lake is dependent upon two factors:the location of migratory corridors and the availability offood. Therefore, the migratory patterns of waterfowl throughthe state of Illinois are described below in order to permit anevaluation of the potential magnitude of populations in thearea of the Braidwood cooling lake for waterfowl on the basisof waterfowl foods produced.Over a million ducks and 300,000 to 400,000 geese spend fromseveral weeks to several months within the state. About600,000 ducks and 250,000 Canada geese usually winter withinthe state. Over 65% of the wintering ducks are mallards and.R.22.7-28 5/737173 occur largely along the Illinois River valley south of Peoria,the Mississippi River south of Burlington and southern Illi-nois. About 98 percent of the Canada geese winter in William-son, Union and Alexander counties in extreme southern Illinois...Most of the ducks frequenting Illinois during the fall migra-tion originate from breeding grounds in southern Saskatchewan,southwestern Manitoba and North and South Dakota. The bulk of thefall ducks depart Illinois on southerly courses for majorwintering grounds in Arkansas and Louisiana.(22a)Over 90 percent of the ducks frequenting Illinois in migrationconcentrate on the Illinois and Mississippi River valleys tothe west of Braidwood. Most ducks arrive at the Mississippiand Illinois Rivers from the northwest and turn southwardbefore reaching eastern Illinois where Braidwood is located.(22b)Therefore, the numbers of ducks reaching the Braidwood area is M.R.relatively small compared to areas farther west in the northernhalf of the state.Large numbers of geese pass through the Braidwood area. From75,000 to 150,000 Canada geese migrate from the Horicon Nation-al Wildlife Refuge, 75 miles northwest of Milwaukee, Wisconsin,to three refuges in southern Illinois. Most of this passageof geese from Horicon occurs when heavy snowfalls cover wastecorn in fields late in November or early in December. Onlysmall numbers of geese stop en route to southern Illinois inM.R.22.7-29 5/737/73 spite of numerous lakes on their migration corridor.(22c) It isapparent that up to the present time this population of geesehas found an adequate food supply during the fall in theHoricon Marsh area and an adequate food supply during the win-ter in southern Illinois. (22d)It is anticipated that on the basis of present behavior, from300 to 5,500 Canada geese would be likely to stop briefly atthe Braidwood impoundment during fall and spring migration.Their length of stay would probably average no more than 10days, but would be dependent on available waste corn and soy-beans in nearby fields. (22b,22e)Perhaps 6,000 to 25,000 lesser snow geese migrate in the vicin- M.R.ity of the Braidwood site. These geese have shown littleinclination to pause in Illinois on their flight between JamesBay and the coastal marshes of Louisiana.(22a) Therefore, it isanticipated that only a few hundred at most might seek tem-porary rest in the Braidwood cooling lake.In the spring, the migration of lesser snow geese occurs almostentirely west of the Mississippi River and consequentlywould not pass near the Braidwood area.(22b)As a result of the location of the proposed Braidwood site andthe type and amount of available food, the cooling lake wouldM.R.22.7-30 5/737/73 provide limited use for waterfowl 22b) Table 2.7-20a shows theanticipated waterfowl use of the lake. The cooling lake would M.R.cover 2640 acres resulting in a waterfowl use of 95 days peracre per year!22b)The site area is not within the natural breeding grounds ofmigrating waterfowl.(17) For optimal use during migrations,ponds with extensive shorelines and coves are advantageous.Areas of marsh vegetation around ponds are important, but shouldnot completely encircle ponds because of the need for "loafing"spots. These may be supplied by small islands, sandbars, mudflats or open margins. The quality of habitat at resting areasalong migratory paths is not as important as it is on winteringgrounds or summer breeding grounds. The strip-mine spoil pondsof the site should be adequate resting areas.Peabody Coal Company personnel have fed waterfowl on the pondwest of the tipple in Section 6 of Kankakee County for severalyears and there have been over 200 ducks overwinter there.(l)Some of these are domestic hybrids. The South Wilmington Fire-men's Park and Beach Club.which uses a strip-mine area southwestof the site, also has ducks overwintering on their ponds. Inaddition, the club has been rearing giant Canada geese fromgoslings. The geese are freed in their third year and there-after migrate and return each year.l)M.R.22.7-31 5/737/73 D. FUR BEARERS1. MuskratThe muskrat is the nation's greatest fur resource. (17) Itshabitat may be in streams, ponds, swamps or marshes. Homemay be a bank burrow or house constructed of vegetation.Bank dens are reached by one or more tunnels 10 feet ormore in length with the entrance under water. Muskrats donot feed more than 100 yards from home but may move one-fourth mile in search of new home grounds. Muskrats tend topair off and 2 to 4 litters of 6 to 8 per litter are producedannually. Optimum habitat consists of marshes with about80% vegetation and 20% open water located on soils suitablefor digging. Preferred foods are cattails, bulrushes, burreed and rice cutgrass.In other areas of the state, strip-mine spoil has servedas excellent muskrat habitat with consistent trap harvestrates of over one muskrat/acre/year.i1f4) Older areas anddrainage ditches within the site appear to have similarpotential and may be presently supporting populations ofthat magnitude.2. BeaverThe habitat of the beaver is streams and ponds in woodedareas. A lodge with an underwater entrance is built thathouses a colony of up to twelve beavers. (20) Daily rangeis not great, but when young leave the colony after one yearin search of new home grounds, considerable distance may betraveled.(21) Beavers are monogamous and produce one litterof about four young each year. Food consists of bark ofpoplars and willows, especially from smaller twigs. Some areM.R.22.7-32 7/73 and this is probably the case with those inhabiting thespoil within the site. Tracks were frequently found inall but the most recently mined areas.4. MinkThe mink habitat is generally wooded marshlands.(21) Homesare often made in muskrat dens. One litter per year of 3tolOyoung are produced. Food consists primarily of muskrat,waterfowl, frogs, fish, snakes and mice. Muskrat is pro-bably the primary food.Mink numbers in the wild have been greatly reduced,(20) butthey are frequently found in Illinois strip-mined land.(13,14)Their number appear to be limited within the areas sampled,but may be more abundant in areas with more water such asSection 28, Will County.5. FoxWoodland habitats are preferred, but the fox is adapted toa variety of types.(20 ) Foxes are generally solitary, andmating occurs in the winter. A-litter consists of about 4young. Dens are underground and may be remodeled woodchuckor other burrows.(21) Food consists primarily of smallrodents or rabbits, however they may also eat poultry,gamebirds or carrion. Large amounts of vegetable foodare eaten including grass and fruit.In Iowa farmlands, the red fox population was estimated at0.6/square mile.(23) Old strip-mine lands furnish muchbetter cover, food supply and seclusion. Hunter harvesthas been as high as 5 red fox/square mile in Central Illinoisspoil. (14) In southern Illinois the grey fox is more abundantM.R.22.7-34 7/73 than red fox. However, in the more open direas of CentralIllinois the red fox is more abundant and probably predomi-nates in the site area.E. SMALL RODENTSThe housemouse is 3 to 4 inches long with a tail of about the samelength.(20) It is generally commensal in human habitations andstore houses, but is also found in a wide range of agriculturaland wild environments. It is omnivorous and hoards food. Sixto seven litters per year are produced with 6 to 7 in a litter.Young are weaned at threeweeks.The white-footed mouse and deer mouse (both PeroySCUS sp.)have a 4-inch head and body and a 4-inch tail. 2 Peromyscusare gregarious, making runs in leaf litter or just below thesurface. Most settle within 500 yards of birth place. Foodconsists of vegetable matter. There are several litters eachyear of 1 to 9 each. Young are weaned at about four weeks.The prairie vole has a 4-inch body and head and a 1-1/4 inchtail. (20) It is active day and night with a 2 to 3 hour rhythm.Runs are made in grass and in burrows beneath the surface.Food is vegetable, primarily grass with some hoarding in burrows.Several litters are produced each year of 5 to 7 each. Young areweaned at around 2 weeks. Related to its intense activity,(21)are a relatively short lifespan (generally less than one year)and cyclic rises and falls in population levels.Although the insectivorous shrew, in the strict sense, is notclassified as a rodent, its inclusion here is consistent withcommonly used general classifications. Short-tailed shrews(Balarina brevicauda) and masked shrews (Sorex cinereus) areamong the smallest living mammals. The short-tailed shrew hasM.R.22.7-35 7/73
- 5-inch head and body with a 1-inch tail and weighs about l ounce.The masked shrew has a 2 2/5-inch head and body with a 1 3/4-inchtail and weighs about 1/5 ounce.(20) Similar to the prairie vole,the shrews short life span (1-2 years) is related to its extremelyhigh metabolic rate and constant nervous activity.(21) Foodconsists of insects and their larvae, various herpetofauna,small birds and mammals and some vegetation. They have been knownto eat three times their own body weight in a 24 hour period. Theshort-tailed shrew produces a poison in the saliva from its lowerjaw which is very similar to cobra venom.(21) It depends-on thisdeadly poison in killing larger prey. Typical habitats includewoodlands and grasslands, but usually in moist or marshy placeswithin these areas. Three to eight young are produced in eachof the two or three litters per year. Young are weaned at aboutfour weeks.The six species just discussed were all trapped during the firstthree surveys (Tables 2.7-21, 14.0-16 and 14.0-17). There weresome marked differences in habitat preference. Of the 20 horsemice caught, 19 were in cultivated fields and none were in areasof advanced vegetative succession. Most of the deer mice werecaught in cultivated fields, fallow fields or strip-mined areaswith little tree cover. The white-footed mice were caught primar-ily in or near areas of trees. These findings are consistentwith investigations in strip-mined areas.(13,24) In southernIllinois strip-mined land, the white-footed mouse was found inolder areas, the deer mouse in younger areas, the house mousein younger areas near ponds and the prairie vole in largegrass covered areas. Total specimens/trapnight was 0.127during that study compared to 0.108, 0.061 and 1.474 duringthe fall, winter and spring surveys on the Braidwood site.There was only one prairie vole trapped within the strippedM.R.22.7-36 7/73 land of the site. Prairie voles are preferred over othersmall rodents by such predators as the fox, weasel and mink(21)and their occurrence may be important in making the minedhabitat attractive to predatory species. (14) Shrews werecaught only in the off-site marsh study area. Althoughnone were trapped within the site, it is likely they mayinhabit marsh areas in the 1940's strip-mined portion.M.R.22.7-37 7/73 Table 2.7-5COMMON PLANTS OF A FIELD OUT OF CULTIVATION FOR TWO YEARS*(Total Cover 59%)**Common NameBotanical NameComposition, %GrassesWitch grassCommon crabgrassPanic.FieldGreenWheatgrasssandburfoxtailForbsFrostweedLate bonesetRagweedMuletailPartridge peaCommon peppercressAlfalfaYellow wood-sorrelPrickly sidaFlowering spurgeLamb's quarterOyster-plantPigweedRattle-boxPanicum capillareDigitaria sanguinalisPanicum pseudopubescensCenchrus pauciflorusSetaria viridisTriticum aestivumAster pilosusEupatorium serotinumAmbrosia artemisiifoliaErigeron canadensisCassia fasciculataLepidium virginicumMedidago sativaOxalis dilleniiSida spinosaEuphorbia corollataChenopodium albumTragopogon dubiusChenoDodium berlandieriCrotalaria sagittalis22<1<1<1<1251716765433211<1<1(continued)M.R.27/732.7-65 Table 2.7-5 (continued)Common NameForbs (continued)Ivy-leafed morning-gloryEvening primroseVirginia ground-cherryField goldenrod.Blue vervainWinter vetchBotanical NameComposition, %Ipomoea hederaceaOenothera rhombipetalaPhysalis virginianaSolidago nemoralisVerbena hastataVicia villosa<1<1<1<1<1<1Other monocotsSedgeCarex siccata<1*Fall Survey (October 1972), based on Transect 1, Figure 6.1-2, a lineintercept analysis was conducted at 50-foot intervals with a total of200 feet being analyzed to the nearest inch. The Spring Surveyanalysis (May 1973) is listed in Appendix I, Table 14.0-1.**Area of ground covered by standing vegetation.2.7-66M.R.27173
)Table 2.7-6OCCASIONAL AND LOCALIZED PLANTS OCCURRING INA FIELD OUT OF CULTIVATION FOR TWO YEARS*Common NameGrassesFall witch-grassPaspalum grassForbsCommon yarrowSpiny pigweed-Bur marigoldWild lettuceBush-cloverPurple milkwortCommon cinquefoilHorse-nettleCanada goldenrodLate goldenrodWild beanCommon dandelionBotanical NameLeptoloma cognatumPaspalum stramineumAchillea millefoliumAmaranthus spinosusBidens aristosaLactuca canadensisLespedeza capitataPolygala sanguineaPotentilla simplexSolanum carolinenseSolidago canadensisSolidago giganteaStrophostyles leiospermaTaraxicum officinale*Fall Survey (October 1972) based on Transect 1, Figure 6.1-2,species occurring within 5 feet of transect line, but notintercepted during detailed analysis.2.7-67 M.R.27/73 Table 2.7-7COMMON PLANTS OF A WOODLAND'AREA*(Total Cover 74%)**Common Name.Botanical NameCom~position, %TreesSassafrasWhite oak (seedling)Red oak (seedling)Hortulan plumBlack oak (seedling)ShrubsBlack raspberryNew Jersey teaAmerican hazelnutPrairie willowBlack huckleberryWild roseSmooth sumacGrassesKentucky bluegrassLittle bluestemWitch grassBig bluestemRedtopPrairie threeawnArrowfeather threeawnLace grassFescueIndian grassCord grassSassafras albidumQuercus albaQuercus rubraPrunus hortulanaQuercus velutinaRubus occidentalisCeanothus ameri canusCorylus americanaSalix humilisGaylassacia baccataRosa (hybrid)Rhus glabraPoa pratensisAndropogon scopariusPanicum capillareAndropogon furcatusAgrostis albaAristida oliganthaAristi da purpurascensEragrostis capil larisFestuca sp. (no flowers)Sorghastrum nutansSpartina sp. (no flowers)6441<155441<1<116731<1<1<1<1<1<1<1(continued)M.R.27/73.2.7-68 Table 2.7-7 (continued)Common NameBotanical NameComposition, %ForbsAsterHairy sunflowerField goldenrodCommon cinquefoilHog-peanutGroundnutAzure asterBushy EuthamiaWild strawberrySolomon's-sealFigwortPrairie violetCommon yarrowSavoryleaf asterFrostweedPartridge peaTall tickseedRattle-boxPale coneflowerMiddle EuthamiaFrostweedRound-fruitedSt. John's-WortNarrow-leaved pinweedVillous pinweedRough blazing starAster sp. (rosette)Helianthus mollisSolidago nemoralisPotentilla simplexAmphicarpa bracteataAo americanaAster azureusEuthamia gymnospermoidesFragaria vijrýinianaPolygonatum commutatumScrophul aria 1 anceol ataViola pedatifidaAchillea millefoliumAster lineariifoliusAster pilosusCassia fasciculataCoreopsis tripterisCrotalaria sagittalisEchinacea pallidaEuthamia mediaHelianthemum bicknelliHyperi cum sphaerocarpumLechea tenuifoliaLechea villosaLiatris aspera333211111111<1<1<1<1<1<I<1<1<I<I<I<1<l(continued)M.R.27/732.7-69 Table 2.7-7 (continued)Common NameBotanical NameComposition, %Forbs (continued)Prairie blazing starPuccoonMintAmerican feverfewTall cinquefoilFalse solomon's-sealBlack nightshadeCanada goldenrodSow thistleGoat's rueLiatris punctataLithospermum carolinenseMentha sp. (no flowers)Partheni um i ntergri fol iumPotentilla argutaSmi lacina racemosaSolanum nigrumSoli dago canadensi sSonchus uliginosusTephrosia virginianaCarex sp. (no flowers)Osmunda ci nnamoni aunidentifiedEquisetum hymenaleMycena sp.Polyporus versicolor (on log)Polytricum sp.<1<1<1<1<1<1<1<1<1<1SedgeSedge5Nonflowering plantsCinnamon fernLeafy mossScouring rushMushroomYellowish wood-rotHaircap moss43<1<1<1<1*Fall Survey (October 1972) based on Transects 4 and 8, Figure 6.1-2,a point intercept analysis was conducted at 1-foot intervals on 50-footsegments. A total of 750 point observations were made. The SpringSurvey analysis (May 1973) is listed in Appendix I, Table 14.0-2.**Area of ground covered by standing vegetation.M.R.22.7-70 7/73 Table 2.7-8OCCASIONAL AND LOCALIZED PLANTS OCCURRINGIN A WOODLAND AREA*Common NameBotanical NameTreeQuaking aspenGrassesMuhly grassGiant foxtailPopulus tremuloidesForbsSmall -flowered agrimonyLead plantLong-fruited anemoneHemp dogbaneWestern falsefoxglovePrairie-indigoWild-indigoStiff tick-trefoilDowny gentianCoarse sunflowerRockroseCanada hawkweedLeggett's pinweedFalse dragonheadStarry campionVioletFernsRoyal FernMassachusetts fernMuhlenbergia glabrifloraSetaria faberiiAgrimonia parvi floraAmorpha canescensAnemone cylindricaApocynum cannabinumAureolaria grandifloraBaptisia leucanthaBaptisia*leucophaeaDesmodium strictumGentiana puberulaHelianthus hirsutusHelianthemum canadenseHieracium canadenseLechea leggettiiPhysostegia virginianaSilene stellataViola sp.Osmunda regalisThelypteris'simulata*Fall Survey (October 1972) based on Transect areas 4 and 8,Figure 6.1-2, species occurring within 5 feet of transectline, but not intercepted during detailed analysis.2.7-71,.R.2'7/73 Table 2.7-9VEGETATION OF WOODLAND AND HEDGE-ROW ROADSIDE COMMUNITIESWITHIN THE BRAIDWOOD SITECommon Name-TreesSilver mapleSugar mapleOsage orangeEastern cottonwoodLombardy poplarBlack cherryWhite oakRed oakBlack locustBlack willowSlippery elmShrubsRed osier dogwoodSmooth sumacBlack raspberryWoody climbersVirginia creeperForest grapeGrassesBromegrassCommon crabgrassTumblegrassWitch grassFoxtailGreen foxtailBotanical NameAcer saccharinumAcer saccharumMaclura pomiferaPopulus deltoidesPopulus italicaPrunus serotinaQuercus albaQuercus rubraRobinia pseudoacaciaSalix nigraUlmus rubraCornus stoloniferaRhus glabraRubus occidentalisParthenocissus quinquefoliaVitis vulpinaBromus inermisDigitaria sanguinalisEragrostis spectabilisPanicum capillareSetaria faberiiSetaria viridis(continued)M.R.27/732'.7-72 Table 2.7-9 (continued)Common NameForbsCommon milkweedHorsetail milkweedSkyblue asterSavoryleaf asterFrostweedTall beggar-ticksOx-eye daisyChicoryTrue Solomon 's-sealFalse Solomon's-sealCanada goldenrodField goldenrodCommon mulleinCockleburBotanical NameAsclepias syriacaAsclepias verticillataAster azureusAster lineariifoliusAster pilosusBidens vulgataChrysanthemum leucanthemumCichorium intybusPolygonatum commutatumSmilacina racemosaSolidago canadensisSolidago nemoralisVerbascum thapsusXanthium strumarium2.7-73 Table 2.7-10COMMON PLANTS OF RECENTLY STRIP-MINED AREAS*(Total Cover 22%)**Common NameBotanical NameComposition. %TreesBlack locust***Alder***Russian olive'*ShrubSandbar willowGrassesBromegrass***.FoxtailTumblegrassCrab grassForbsAlfalfa***Russian thistleSweet clover***Goose footSmartweedLamb's quarterWinged pigweedOther monocotsOhio spiderwortRobinia pseudoacaciaAlnus glutinosaElaeagnus angustifoliaSalix interiorBromus inermisSetaria faberiiEragrostis spectabilisDigittaria SanguinalisMedicago sativaSalsola pestiferMelilotis officinalisChenopodium berlandieriPolygonum pennsylvanicumChenopodium albumCycloloma atriplicifoliumTradescantia ohiensis52<1<131<1<146201351<1<1<1*Fall Survey (October 1972) based on Transect 2, Figure 6.1-2, a lineintercept analysis was conducted for 50 feet at 250-foot intervalswith a total of 400 feet being analyzed to the nearest inch. TheSpring Survey analysis (May 1973) is listed in Appendix I, Table 14.0-4..**Area of ground covered by standing vegetation.***Planted during reclamation program.M.R.27/732.7-74 Table 2.7-11OCCASIONAL PLANTS IN RECENTLY STRIP-MINED AREAS*Common NameBotanical NameTreesAutumn olive**Sycamore**CottonwoodGrassesSand reed grassBarnyard grassGreen foxtailForbsBush EuthamiaCommon morning-gloryBlack nightshadeElaeagnus umbellataPlatanus occidentalisPopulus deltoidesCalamovilfa longifoliaEchinochloa crusgalliSetaria viridisEuthamia gymnospermoidesIpomoea purpureaSolanum nigrum*Fall Survey (October 1972) based on Transect 2, Figure 6.1-2,species occurring within five feet of transect line but notintercepted during detailed analysis.**Planted during reclamation program.2.7-75M.R.27/73 Table 2.7-12COMMON PLANTS OFAN AREA STRIP-MINED IN THE 1960's*(Total Cover 31%)**Common NameBotanical NameCompos i ti on %'TreesQuaking aspenCottonwoodRiver birch***ShrubsSmooth sumacBlack raspberry***Wild plumGrassesBromegrass***Big bluestemForbsSweet clover***Alfalfa***FrostweedRussian thistleBushy EuthamiaCommon ragweedPrickly lettuceOther monocotsOhio spiderwortPopulus tremuloidesPopulus deltoidesBetula nirRhus glabraRubus occidentalisPrunus hortulanaBromus inermisAndropogon gerardiMelilotus officinalisMedicago sativaAster pilosusSalsola pestiferEuthamia gymnospermoidesAmbrosia artemisiifoliaLactuca scariolaTradescantia ohiensis153<142<112317141185<1<I<INonvascular plantsLeafy moss unidentified 2*Fall Survey (October 1972) based on Transect 6, Figure 6.1-2, a pointintercept analysis was conducted at one-foot intervals on 50-foot segments100 feet apart. A total of 350 point observations were made.**Area of ground covered by standing vegetation.***Planted during reclamation program.2.7-76M.R.27/73 Table 2.7-13COMMON PLANTS OF AN AREA STRIP MINED IN THE 1g50's*(Composition: Bromus inermis >90%)**Common NameTreesBox elderEastern cottonwoodBlack willowShrubMultiflora roseBotanical NameAcer negundoPopulus deltoidesSalix nigraRosa multifloraGrassesThreeawnBromegrassGiant foxtailForbsHorsetail milkweed.Hemp dogbaneFrostweedCommon mouse-ear chickweedLamb's quarterChicoryCanada thistleBindweedWild carrotLate bonesetGarden sunflowerWild lettuceWhite sweet cloverCurly dockAristida sp. (no flowers)Bromus inermisSetaria faberiiIAesclepias verticillataApocynum cannabinumAster pilosusCerastium vulgatumChenopodium albumCichorium intybusCirsium arvenseConvolvulus sp.Daucus carotaEupatorium serotinumHelianthus annuusLactuca canadensisMelilotus albaRumex crispus(continued)M.R.27/732.7-77 Table 2.7-13 (continued)Common NameForbs (continued)Russian thistleHorse nettleField goldenrodHoary vervainCockleburBotanical NameMarsh plantsSedgeSpike-rushPondweedGreat bulrushBroad-leaved cattailSalsola pestiferSolanum carolinenseSolidago nemoralisVerbena strictaXanthium strumariumCarex frankiiEleocharis ovataPotamogeton natansScirpus acutusTypha latifolia* Fall Survey (October 1972), based on Transect 5 (located 3 milessouth of site), analysis conducted by observation of vegetationwithin five feet of line because of dense cover of Bromus inermis.** Bromus inermis was planted in this area as part of a strip-minereclamation program.2.7-78M.R.27/73 Table 2.7-14COMMON PLANTS OF AN AREA STRIP-MINEDIN THE 1940'S*Common NameTreesCottonwoodShrubsBlack raspberryGrassesPrairie threeawnBig bluestemLittle bluestemLace grassWitch grass(Total Cover 75%)**Botanical NamePopulus deltoidesRubus occidentalisAristida oliganthaAndropogon gerardiAndropogon scopariusEragrostis capillarisPanicum capillareMedicago sativaMelilotus officinalisSolidago canadensisDaucus carotaAster pilosusFragaria virginianaAmbrosia artemisiifoliaEuphorbia corollataPotentilla simplexAsclepias verticillataCoreopsis tripterisHelianthus hirsutusXanthium strumarium2Compo5ition..j122185<1<1ForbsAlfalfaSweet cloverGoldenrodWild carrotAsterWild strawberryRagweedFlowering spurgeCommon. cinquefoilHorsetail milkweedTall tickseedCoarse sunflowerCocklebur20197321111<1<1<1<1(continued)M.R.27/732,7-79 Table 2.7-14 (continued)Common NameNonvascular plantsBotanical NameunidentifiedProtococcus sp.Composition, %Moss5<1Al gae* Fall Survey (October 1972), based on Transect 3 Figure 6.1-2, apoint intercept analysis was conducted at six-inch intervals on50-foot segments 200 feet apart. A total of 400 point observationswere made.** Area of ground covered by standing vegetation.2.7-80M.R.27/73 Table 2.7-15OCCASIONAL OR LOCALIZED PLANTSOCCURRING IN AN OLD STRIP-MINED AREA*Common NameTreesBox elderFlowering dogwoodEastern red cedarPeach-leaved willowShrubsPlumSmooth sumacSandbar willowWoody climbersForest grapeGrassesArrowfeather threeawnCommon reedIndian grassBotanical NameAcer negundoCornus floridaJuniperus cf. virginianaSalix amygdaloidesPrunus sp.Rhus glabraSalix interiorVitis vulpinaAristida purpurascensPhragmites communisSorghastrum nutansForbsBur marigoldCarpenter weedLate goldenrodField goldenrodSow thistleCommon mulleinBidens aristosaPrunella vulgarisSolidago giganteaSolidago nemoralisSonchus uliginosusVerbascum thapsus(continued)M.R.27/732.7-81 Table 2.7-15 (continued)Common NameBotanical NameMarsh plantsTall scouring rushTorrey's rushSoftstem bulrushBroad-leaved cattailEquisetum hyemaleJuncus torreyiScirpus validusTypha latifolia* Fall Survey (October 1972), based on Transect 3, Figure 6.1-2,occurring within five feet of transect line, but not interceptedduring detailed analysis.2.7-82M.R.27/73 Table 2.7-16MAMMAL SIGNS OBSERVEDDURING BRAIDWOOD TERRESTRIAL SURVEY -FALL 1972Common NameScientific NameEvidenceCultivated FieldsHouse mouseWhite-tailedWhite-footeddeermouseMus musculusOdocoi 1 eus vi rgi ni anusPeromyscus leucopusPeromyscus maniculatusScalopus aquaticustrappedtrackstrappedtrappedtunnelsDeer mouseNorth American moleFallow FieldsWoodchuckDeer mouseNorth American moleCottontail rabbitMarmota monaxPeromyscus maniculatusScalopus aquaticusSylvilagus floridanusburrowtrappedtunnelstracks, droppingsWoodlandsPlains pocket gopherPrairie voleWhite-tailed deerWhite-footed mouseNorth American moleGeomys bursariusMi crotus ochrogasterOdocoileus virginianusPeromyscus leucopusScalopus aquaticusmoundstrappedtrackstrappedtunnelsEdge Areas13-striped groundsqui rrelOpossumWoodchuckCitellus tridecemlineatus sightingDidelphis virginianaMarmota monaxroadside killburrow(continued)M.R.27/732.7-83 Table 2.7-16 (continued)Common NameScientific NameEvidenceEdge Areas (continued)Striped skunkWhite-tailed deerCottontail rabbitMephitis mephitisOdocoileus virginianusSylvilagus floridanusroadside killsightingsightingMarshlandNoneAreas Recently Strip-minedHouse mouseDeer mouseFoxMus musculusPeromyscus maniculatus(unidenti fied)trappedtrappedtracksArea Strip-mined in 1960'sPlains pocket gopherDeer mouseRaccoonGeomys bursariusmanicul atusProcyon lotormoundstrappedtracksArea Strip-mined in 1950'sDogWhite-tailed deerRaccoonMouseCanis familiarisOdocoileus virginianusProcyon lotor(unidentified)sightingtrackstracksdens(continued)2.7-84M.R.27/73 Table 2.7-16 (continued)Common Name Scientific NameArea Strip-mined'in the 1940'sEvidenceDogBeaverCanis familiarisCastor canadensisPlains pocket gopherMinkWhite-tailed deerMuskratWhite-footed mouseDeer mouseRaccoonGeomys bursariusLutreola visonOdocoileus virginianusOndatra zibethicaPeromnscus leucopusPeromyscus maniculatusProcyon lotortrackssighting, lodge,cuttingsmoundstracksbuckrub, trackstrackstrappedtrappedtracksM.R.27/732.7-85 Table 2.7-17HERPETOFAUNA OBSERVED DURING BRAIDWOOD TERRESTRIAL SURVEY -FALL 1972Common NameSnake; Cast SkinBlanchards cricket frogNorthern leopard frogGreen frogScientific Name(probably genus Coluber;Scales smooth; Anal divided)Acris crepitans blanchardiRana pipiens pipiensRana climitans melanotaM.R.27/732.7-86 Table 2.7-18SIGHT RECORDS OF AVIFAUNA DURING BRAIDWOOD TERRESTRIAL SURVEY -FALL 1972(Listed in Order of Decreasing Abundance)Common NameMixed Woodlands and Cultivated Fields*Unidentified migrating warblersBobwhite quailRed-headed woodpeckerBluejayBlack-and-white warblerRedstartPurple grackleMagnolia warblerRock doveGrasshopper sparrowYellow-shafted flickerDowny woodpeckerBlack-capped chickadeeTufted titmouseRuby-crowned kingletCardinalOvenbirdRobinRed-eyed vireoScientific Name(5 species)Colinus virginianusMelanerpes erythrocephalusCyanocitta cri stataMniotilta variaSetophaga ruticillaQuiscalus quisculaDendroica magnoliaColumba liviaAmmodramus savannarumColaptes auratusDendrocopus pubescensParus atricapillusParus bicolorRegulus calendulaRichmohdena cardinalisSeiurus aurocapillusTurdus migratoriusVireo olivaceusEdge Areas**Red-winged blackbirdRing-necked pheasantAgelaius phoeniceusPhasianus colchicus(continued)M.R.27/732.7-87 Table 2.7-18 (continued)Common NameScientific NameEdge Areas**(continued)Mourning doveCrowStarlingRobinTree swallowBrown-headed cowbirdYellow-shafted flickerCatbirdSong sparrowFox sparrowRose-breasted grosbeakChipping sparrowRed-tailed hawkMarshl and***RobinAmerican goldfinchBluejayYellow-shafted flickerZenaidura macrouraCorvus brachyrhynchosSturnus vulgarisTurdus migratoriusIridoprocne bicolorMolothrus aterColaptes auratusDumetella carolinensisMelospiza melodiaPasserella iliacaPheucticus ludovicianusSpizella passerinaButeo jamaicensisTurdus migratoriusSpinus tristisCyanocitta cristataColaptes auratusEremophila alpestrisArea strip-mined last four years***Prairie-horned lark(continued)M.R.27/732.7-88 Table 2.7-18 (continued)Cormnon NameScientific NameArea strip-mined in 1960's***Prairie-horned larkCrowArea strip-mined in the 1940'sBl uejayCrowSemi palmated sandpi perStrip-mine Ponds***MallardMallard -domestic hybridBlue-winged tealEastern-belted kingfisherSemi palmated sandpi perOspreyEremophila alpestrisCorvus brachyrhynchosCyanocitta cristataCorvus brachyrhynchosEreunetes pusil lusAnas platyrhynchosAnas discorsMegaceryle alcyonEreunetes pusillusPandion haliaetusJ M.R.2*Early morning sightings.**Roadside sitings primarily west and north side of Section 30 and alongrailroad tracks, Section 31, Will County. Early morning and middaysightings.***Midday sightings only.M.R.22.7-89 7/73 Table 2.7-19INSECTS IDENTIFIED DURING FALL SURVEY -1972OrderOdonataCommon Name orEffectScientific NameBlackwing damselflyTen-spot dragonflyCalopteryx sp.Libellula pulchellaIsopteraTermiteTermes sp.OrthopteraHemipteraHymenopteraField cricketRed-legged grasshopperAngular-winged katydidAmerican grasshopperBush katydidGreen stink bugAphidBuffalo treehopperLeafhopperCottony cushion scaleOyster scaleMilkweed bugSpittlebugMealy scaleAnnual cicadaSolitary waspOak apple gallHoney beeBumblebeeGoldenrod gallElliptical goldenrod gallSweat beeBlack antAcheta assimilisMelanoplus sp.Pterophylla sp.Schistocerca sp..Scudderia sp.Acrosternum sp.Aphidae sp.Ceresa buballsGraphocephala sp.Icerya sp.Lepidosaphes sp.Lygaeus sp.Philaenus sp.Pseudococcus sp.Tibicen sp.Ammuphila sp.Amphibolips sp.Apis melliferaBombus sp.Evrosta sp.Gnorimoshema sp.Halictus sp.Monomorium sp.(continued)M.R.22.7.-90. 7/73 Table 2.7-19 .(continued)OrderColeopteraNeuropteraCommon Name or EffectHairy rove beetleBlister beetleLadybird beetleGoldeneye lacewingScientific NameCreophilus sp.Epicauta sp.Hippodamia sp.Chrysopa aculataAsilidae sp.Culex sp.Mecarhyssa sp.Tachnidae sp.Tipulidae sp.DipteraRobber flyMosquitoIchneumon flyTachnid flyCrane flyLepidopteraFall cankerwormMeadow fritillaryWhite lined sphynx (larva)Alfalfa butterflyCommon sulphur butterflyMonarch butterflyTussock moth (larvae)Fall webwormBanded woollybearCommon Wood nymphQuestion markGreat spangled fritillaryPainted ladyAsophila pometariaBoloria toddiCelerio lineataColias eurythemeColias philodileDanaus plexippusHemerocampa sp.Hyphantria cuneaIsia isabellaMinois alopePolygonia interrogationisSpeyeria cybeleVanessa sp.M.R.27/732.7-91 Table 2.7-20PHEASANT POPULATIONS OF THREE COUNTY AREA(25)CountyKankakeeGrundyWillCounty Rank1958 1963 19688 8 1210 10 1426 27 28Total PheasantsReported.1958 1963 1968706 973 538323 429 283208 179 181PheasantsPer 100 Miles1958 1963 196815.3 19.7 10.112.5 17.7 9.34.6 3.0 2.7Change Per100 Miles, %1959-1968-34-26-41M.R.27/732.7-92
- Table 2.7-20aANTICIPATED USE BY WATERFOWLOF BRAIDWOOD COOLING LAKESpeciesCanada GooseLesser snow gooseMallardBlack duckPintailGadwal1WidgeonShovelerBlue-winged.tealGreen-winged tealRedheadCanvasbackRing-necked duckLesser scaupCommon goldeneyeTOTALMinimumPopulation30050500300301530030500501040100500502,775MaximumPopulation5,5001,00014,0001,000300100500501,0003001003005005,50030030,550EstimatedWaterfowlDays of Use11,0002,700165,00027,0008007001,O004005,50080060070090033,000800250,900M.R.22.7-93M.R.27/73 Table 2.7-21TRAPPING OF SMALLMAMMALS DURING BRAIDWOOD TERRESTRIAL SURVEY -.'FALL 1972HabitatCultivated fieldsMiloSoybeansCornTrapnights**4810848Mice/trap0.350.0740.19Housemouse1315White-Deer footedmouse mousePrairievole000271003Fallow fieldsUnculti vatedwoodlandsAreas recentlystrip-mined.RidgesSlopesBottomsAreas strip-minedin 1960'sAreas strip-minedin 1940'sGrass andforb areaTrees and shrubsTOTAL192 0.1172 0.069132 0.07524 0.2336 0.08336 0.1990 0.06700001000202201052750610400001513010000001908760.0560.11*Edge areas, marshwinter and spring**Number of traps Xareas and lanfd stripped during 1950's not sampled untilsurveys of 1973 (Tables 14.0-16 and 14.0-17).number of nights trapped.M.R.27/732.7-94 9LEGENDUNMINED AREASNAGRICULTURE FIELDS I(INCLUDES PASTURES)FALLOW FIELDSWOODED AREASOME PLANTED TREES(RESIDENTIAL, CEMETERIES, kORCHARDS, CHRISTMAS EETREE FARMS)BARE(UNDERGROUND MINE SPOILSAND PITS)STRIP MINE AREAPARTIALLY WOODEDGOOD GROUND COVER -25 ..........OCCASIONAL TREESSOME GROUND COVER-TREES WiDELY SCATTERED(MIXED ANNUAL ANDPERENNIAL VEGETATION)MOSTLY BARE '(SCATTERED ANNUALS E liAND SOME RECLAMATION. .PLANTINGS)DRAINAGE DITCHES AND .. ..-:..] STREAMS3P Ir 4 .-%. CF4* (ýNOTE: NUMBER IN EACH SECTOR -- ..REPRESENTS LAND TRACTDESIGNATION AS GIVENIN ILLINOIS ATLAS ANDPLAT BOOKS.M.R.27/73Figure 2.7-3 Vegetation Map of the Braidwood Site Area2.7-370
--13/ D BOBWHITES10_I8-" ,'SQUIRRELS.432,oo1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969YEARSFigure 2.7-4 Trends in Small Game Harvest in Illinois(18)M.R.22.7-371 7/73 BRAIDWOODSTATIONENVIRONMENTAL REPORTVOLUME'COMMONWEALTH EDISON COMPANY.I FOREWORDThis report is offered in support of CommonwealthEdison Company's application for a constructionpermit for Braidwood Station Units 1 and 2. TheStation is located in Will County, Illinois, andconsists of two 1120 MW (net) pressurized waterreactor nuclear units, scheduled for commercialservice in late 1979 and late 1980.M.R.2ii 7/73 Supplement 44.0 ENVIRONMENTAL EFFECTS OF SITE PREPARATION, PLANT AND TRANSMISSIONLINE CONSTRUCTION4.1 SITE PREPARATION AND PLANT CONSTRUCTION4.1.1 SCHEDULEConstruction of Braidwood Station is anticipated to begin in mid-1975,with commercial operation of Unit 1 in the spring of 1980. A generalconstruction schedule may be found in Figure 4.1-1.4.1.2 PLANT CONSTRUCTIONDuring preliminary construction work, areas of the site will be cleared,and grading and excavation will be undertaken. Maximum excavation is notexpected to exceed 60 feet, and 30 feet should be the nominal average. Atthis site location, it appears that about 15 feet of rock must be removedduring the deepest excavation. Multiple small blasts with dynamite will* be used to loosen this material for removal. Explosive uses will extendintermittently over a one-year period. Although the local human popula-tion is quite low, disturbance from. explosives will be limited by use ofsmall multiple charges to minimize noise, dust and ground shaking in thevicinity. Generally speaking, there will be no special material supplyareas as such. The dikes will be constructed from material taken fromwithin the confines of the proposed lake and no excess spoil is antici-pated from either the lake or the plant excavations. All of the spoilwill be used either as land fill or in dike construction.Major chemicals used on-site during the construction period includetri-sodium phosphate, soaps and detergents, paints,.cleaning fluids,concrete admixtures, fly ash, sweeping compounds, oil and fuels suchas propane, gasoline, and diesel oil. No estimate of quantity usedis available; however, any release of such materials to the site M.R.environs will be in accordance with state and federal regulations.Tri-sodiun phosphate will be disposed of off-site by an independentcontractor or processed through a waste disposal system. Soaps and4.1-1 5/736/74 detergents will be directed to the construction sanitary system orprocessed through a waste disposal system after use. Sweeping com-pound will be disposed of off-site by an independent contractor. Nodisposal is required for other substances listed as they are usedconsumptively.Dredging of the Kankakee River bottom will be required in conjunctionwith the construction of the intake and discharge structures (seeSection 3.4) which will be located approximately 1000 feet and 1500 feet,respectively, downstream of the confluence with Horse Creek.Present construction plans anticipate that the dredged areas for theintake and discharge structures will be approximately one half acre(n,2222 sq yd).An aquatic program currently in progress on the Kankakee River includesan evaluation of benthic populations; data from this program have beenM.R.2used to assess the ecological consequences of dredging. These dataindicate that benthic populations are most developed along the shorelinein mud bottoms about 2.5 miles upstream of the intake/discharge area andapproximatelyl1.0 miles downstream of the proposed discharge structure.A population density of about 5% of the population density 2.5 milesupstream or 1.0 miles downstream of the discharge area was obtained inthe vicinity of the discharge structure. This variation in populatinndistribution can be partially attributed to differences in river velocitymeasured near the bottom which determines, to a great extent, the typeof river bottom, (mud, gravel, etc.) present at a particular location.The natural narrowing of the river in the vicinity of the proposed intake/discharge structures increases the river velocity, resulting in a riverbottom of primarily cobble and gravel. Only occasional patches of mudwere found near the proposed discharge structure.4.1-la7/73 The mayfly Stenonema and the chironomid Eukieffriella are the mostnumerous of the invertebrates collected at the ihtake/discharge area,forming 27.8% of the total collected. Fifteen other species of benthoswere collected near shore in the vicinity of the proposed constructionactivities; none were numerous.Dredging activities should result in little silting of downstream rivercommunities. A bottom survey recently conducted in the immediate areaof the intake and discharge and to a point about 2000 feet below theproposed discharge location showed that, in the area of the proposeddredging activities, the bottom was almost entirely cobblestone andgravel. Some siltation may occur, however, as a result of dredging nearshore in some small patches of mud. It is unlikely that this will haveany significance on the downstream benthic communities. The KankakeeRiver commonly experiences a heavy silt load and clearness (measured bySecchi disc) is often six inches or less. Also, the benthic communitydownstream (as indicated by the species collected 1 mile below the proposeddischarge structure) is predominated by the tubificjidqms Branchiura and M.R.2Tubifex. These two species make up almost 0Z percent of the total numberof benthic invertebrates at that point. Chironomids are often found in avariety of substrata but are especially common in muddy bottoms. Theirexistence under anaerobic conditions makes it unlikely that siltation willaffect their numbers. The mayfly, Hexagenia, is also numerous and accountsfor 14 percent of the total benthos collected. These insects are activemud burrowers and can move to the surface if covered by silt. Theseconditions -- the normal presence of siltation in the Kankakee River andthe kind of species downstream to the area of dredging -- make it unlikelythat any significant reduction in numbers of benthic organisms will occur.The chemical constituents of the neutralizing tank effluent and coolinglake blowdown water to be discharged by Braidwood Station into the4.1-lb7/73 Kankakee River have been previously discussed in Section 3.6 and arelisted in Table 3.6-2. The ambient river concentration of these samechemicals which were measured by the Illinois EPA and the Illinois WaterSurvey Division and which define the present water quality of theKankakee River were provided in Table 3.6-1. More recent measurementsof river water quality in the vicinity of the proposed discharge, obtainedfrom the on-going Braidwood Aquatic Monitoring Program, generallyconfirm these state agency data.Compliance of the predicted thermal, chemical and biocide discharges withIllinois effluent and water quality standards was discussed in Section 5.1and Section 5.4. As , located approximately 10 milesdownstream of the proposed discharge, is the only substantial user of theKankakee River water that could be affected by changes in water quality(see Section 2.2.3). Since all standards are satisfied within closeiproximity of the proposed discharge and since extensive dilution of M.R.2Braidwood effluents would be achieved before reaching the Joliet Arsenalintake, no significant effect on downstream users from the water qualitystandpoint is anticipated.Among the largest consumptive users of the Kankakee River water identifiedin Section 2.2.3 are the Joliet Arsenal downstream of the proposedBraidwood intake structure which processes 25 million gallons per day(39 cfs) and a proposed water treatment plant to be located approximately1-1/4 miles upstream of the Braidwood intake structure whose consumptiverequirements are estimated to be 50 million gallons per day (78 cfs) atstartup of the treatment plant in 1976. It has been estimated that the.cooling lake will be operated with an average effective river-waterconsumption rate of 47 cfs as discussed in Section 3.4. On the basisof a mean annual river flow of 3640 cfs, only 1.3% of the river waterwould be required for operation of Braidwood Station. Under low-flowconditions, it is intended that the maximum use of the river for coolinglake makeup water be no more than 10% of the total river flow past theA 1 1 .7/73.. I-I-. intake. Therefore, the relatively modest requirements of current andprojected consumptive users of Kankakee River water would not besignificantly affected by the Braidwood Station.Construction of the plant should have no significant impact on theshallow groundwater regime except in close proximity of the plant site.This effect will be local and non-permanent as is discussed below.The plant is located north of the lake in an area of relatively thick(less than 50 feet) and permeable surficial deposits. About 1500feet to the west of the plant facilities is a trailer camp with morethan 20 sandpoints (shallow wallpoints finished in less than 20 feetof sand). The plant site boundary lies about one-quarter mile north-east of the village of Godley. Homes in and around Godley also areserved by sandpoints, probably numbering between 50 and 100. Construc- M.R.2tion in the plant area will require local dewatering of the sand forfoundation construction. It is estimated that under the worst condi-tions (severe drought) during dewatering water levels may be lowered atmost by about two feet in the nearest sandpoints.The plant area encompasses a small portion (one-quarter square mile)of several square miles which comprise a local groundwater rechargearea. Although normal construction activities should have no impacton the quality of groundwater recharge, special care will beexercised during construction to prevent introduction of potentialcontaminants to the groundwater system, such as proper containment ofpetroleum products and adequate treatment and disposal of waste water.4.l-ld7/73 4.1.3 PIPELINE CONSTRUCTIONThe pipeline for cooling lake makeup and blowdown will originate at thenorthern end of the cooling lake and extend in an easterly directionacross the southern quarter of Sections 13-17 in Reed Township to theKankakee River (Figure 4.1-3). At the river pump-house intake and dis-charge structure will be constructed. Figure 3.4-4 indicates the posi-tion of the intake structure. Common to the first part of the pipelineright-of-way will be a transmission line corridor. The total length ofthe pipeline is approximately 4.5 miles of which 2.7 miles has a right-of-way of 215 feet wide in conjunction with the transmission corridor. Theremaining portion, to the Kankakee River, of 1.8 miles has a right-of-wayof 130 feet used for only the pipeline.The total acreage encompassed by the pipeline and common transmissioncorridor right-of-way is approximately 100 acres of which 17 acres iscomposea ofusW u , u e wooded riparian zone along -, .2the Kankakee River at the pump-house intake and discharge locations. M.R.2The remaining 83 acres is composed of already cleared and cultivatedfarmland. There are no streams or creeks crossing the right-of-wayand the physiographic land features are representative of the flat,evenly contoured farmland which is characteristic of the north centralIllinois prairie region.Consistent with Edison's policy on pipeline and transmission line siteselection, the rights-of-way have been chosen with maximum considerationgiven to the proper utilization of land with a minimum amount of ecolog-ical impact. Construction of the pipeline across cultivated land willimpose only a temporary disturbance to normal agricultural activity becausethe line will be buried beneath the surface. Wooded areas between cul-tivated fields will be cleared only to the extent necessary and naturalrevegetation will be allowed to proceed after pipeline installation. Thewooded riparian area along the Kankakee River will be cleared only forthe make-up and blowdown structures and the associated pump-house. Of the4.1-le 7/,1 3 total 3.6 acres of riparian woodlands in this area, less than one acre willbe subjected to construction activity. This acre, however, will representd permanent commitment of a riparian resource due to the occupation ofp ysical structures.The lack of water courses along the pipeline corridor will reduce theproblem of contamination and sedimentation, and the flat physiographyof the area will greatly minimize possible erosion due to water run-off.Construction activity in the vicinity of the Kankakee River will pro-ceed with special consideration to erosion and river contamination.Measures to control erosion will include maintenance of gradient andgeneral contour restoration with surface reseeding in possible problemareas.Construction of the water supply pipeline and river screen house is notexpected to have a significant effect on groundwater. M.R.2Three shallow wells are located near the pipeline route at its west end.There a-e no other wells near the line. Shallow excavation for pipelineconstruction may temporarily lower the water level in the wells in theimmediate vicinity of the pipeline; but the completed pipline will haveno effect on groundwater.The river screen house will be built on the floodplain of the KankakeeRiver where there are no nearby wells. Any seepage from the constructionsite, if it occurs, will discharge into the river with a minimum of traveltime in the ground. Consequently, river screen house constructionwill have no impact on the groundwater regime.4. 1-1f7/73 Since the right-of-way extends mostly through cultivated farmland,access to construction sites will be accomplished without significantenvironmental disruption. Permanent access roads will not be necessaryexcept at the river pump-house site.Disturbance of wildlife along the corridor will be local and temporary.Wildlife in these wood areas are ecologically suited to a mixed typeof habitat (hedge rows, strip woods and cultivated fields), and anytemporary increase in edge areas by right-of-way clearing is not expected M.R.2to be disruptive.Considering the type of area traversed by the proposed pipeline, therelatively small amount of wooded land, the lack of unique or unusualphysiographic features and the specific construction provisionsemployed to reduce disturbance and speed restoration, the environmentalimpact of pipeline construction is expected to be insignificant*4.1.4 DIKE CONSTRUCTIONCurrent plans call for a major dike of about 10 to 15 miles in length thatwill encompass a total area of 3540 acres, 2640 acres of which will bewater covered. Granary and Crane Creeks, two small streams that are partof the drainage pattern in the site area, intersect and flow to the MazonRiver in the southern part of the site. These two streams will bererouted around the site perimeter. Location of the dikes and drainage4.l-lg7/73 ditches is shown in Figure 4.1-2.Since the land slopes to the southwest, the dike construction will varyin size from zero bulk where the land is higher on the north and eastsides. The dikes will be 14 feet across the top and with 3:1 slopingsides. As proposed, the dike will have a clay core and a sand or rubbleexterior to permit rapid infiltration. This porous surface will limitrunoff and erosion and will eventually permit development of vegetativeroot systems. Coarse rubble will be used as riprap on the lake side ofthe dike to prevent local erosion by wind-induced waves. Typically, thedike (at maximum) will use 10.2 x 1O6 cubic feet per linear mile of claytill for a core and about 10% of that amount of sand and rubble cover.About an additional 5% of that volume must be excavated and the materialreplaced by bentonite aggregate under the center of the dike core to formthe seepage barrier. The lake perimeter is approximately 10 miles long.About 12 miles of both exterior and interior dikes will be required.The cut for the seepage barrier will be formed by backhoe or its equiva-lent. The sand cover through which this barrier must be placed decreasesin thickness somewhat to the south. The barrier is to be based on thefirst principal local aquiclude encountered based on pre-excavation explor-atory drilling. This will, in most cases, be the Wedron glacial till foundat an average depth in the area of the plant site of 20 to 30 feet.No significant impact on the shallow groundwater regime is expected asa result of construction of the dike br drainage channel. In the sandarea surrounding the northern three-fifths of the lake, the slurry trench M.R.2method of dike construction will be employed. Since this method does notrequire dewatering, there will be no drawdown of the water table due todike construction.4.1-27/73 It is planned that a drainage ditch will be excavated generally8 to 10 feet deep along the north side of the lake. This ditch willserve as a drain when the groundwater table is above water levels inthe drain and as a groundwater recharge source when ditch water levelsare above the groundwater table.Available spot measurements of groundwater levels made in boreholesat the construction site showed the groundwater table to be an averageof seven feet below ground surface in the spring of 1973, a wet period.Long-term frequent observations of groundwater levels in similaraquifers in northern Illinois show that the groundwater table canfluctuate five feet or more on an annual basis and even more on along-term basis.Thus, it is anticipated that during wet periods the ditch may draw the M.R.2water table down as much as five feet immediately adjacent to the drain.The drawdown effect will diminish rapidly with distance from the drainand probably will not be measurable at a distance of 100 feet due torecharge effects.During extended dry periods the water table should be at or belowditch bottom, and any flow in the ditch should partially seep intothe ground, thus providing recharge to the shallow groundwater system.It is expected that this effect would be minor since surface runoffand ditch flow should be minimal during a drought.The drainage ditch, therefore, should have no measurable impact ongroundwater levels at the sites of established well points.Of the total 3540 acres to be used in constructing the lake, most ofit will be permanently altered. An additional land use alteration of130 acres will take place during the construction of the power plantstructures.4.1-37/73 4.1.5 EFFECTS OF LAKE CONSTRUCTIONSome ecological disturbance may be anticipated in the removal of varioushabitats during this work. Specialization of habitats and their asso-ciated flora and fauna tends to reduce the number of species that couldbe classed as common locally. Reducing floral diversity in a habitatincreases faunal specialization by increasing habitat specialization.The result then is a decline in faunal variety but an increase in popu-lation density.The immediate impact of construction and filling of a lake at the Braid-wood Site will be the exclusion of land biota from the flooded area andthe creation of new habitats. Habitat changes resulting from lakeconstruction will include decreasing cultivated fields by 704 acres,decreasing fallow fields by 301 acres, decreasing woodland by 222 acres,decreasing emergent strip-mine spoil by 2313 acres, increasing openwater by over 2600 acres and the development of over 70 miles of newshoreline.Construction of the essential service water cooling pond and lake screenhouse will have no impact on the groundwater regime since the pond and M.R.2screen house will be built within the area sealed off from the sandaquifer by the dike.Flooding can be expected to result in a reduction in land species diversity,due to the loss of diverse habitats and the creation of specialized habitatssuch as marsh and open waters. The shift will likely be to species such asshore-birds, ducks, geese, herons, amphibians, amphibious reptiles and aquaticmammals which are expected to increase substantially in population density.'1l4.1-3a7/73 4.1.5.1 FLORAOther than the flooding of alarge portion of the ground cover withwater, the most conspicuous change in vegetation after inundation will M.R.2be the death of those trees flooded above their root crown. (1,2) Rateof tree mortality will depnd upon age and species. Very young or smalltrees and overmature trees are the most susceptible. It may be expectedthat 90% of the limited number of trees affected will die within appro-ximately 3 to 6 years 'after initial inundation.() Some com(on4.1-3b /7/73 site species such as cottonwood and oak should succumb in about 3 to4 years, while as much as 50% of the black willows may still beliving after 6 years of flooding because of their ability to setadventitious roots. (1,2,3)Plant succession around the lake is expected to result from the spreadof plants already present and from the introduction of new seed via theKankakee River water used to fill the lake. Cattail is one of the firstplants expected to become established (within 2 years after flooding)along banks, shallow margins and island areas where the water tableapproaches the ground surface. Open, shallow areas on the peripheryof islands and on the lake border will support dense growths ofsmartweed, pondweed, coontail, duckweed and green algae. (1,3)The aquatic life that will develop in Braidwood lake is expectedto resemble that of the Dresden cooling lake, located about 10 milesdownstream from the Braidwood Site. Dresden lake is situated at theconfluence of the Kankakee and Des Plaines Rivers which join to formthe Illinois River. The Dresden lake has as its ultimate water sourcethe Kankakee River and thus the species composition of the lake is similarto the river. Since both lakes are heated and rely upon the Kankakeefor water, then it is likely that the biological composition of bothwill be similar. M.R.The temperature of the Dresden cooling lake has ranged from 72-960F. Thetemperature in Braidwood lake at the blowdown end is expected to averageabout 91*F during July and August, the hottest months (Table 5.1-1).Temperatures at the plant outlet are higher but are expected to be below M.R.2an average of 970F during seven months of the year. From this comparison,it is reasoned that the temperature characteristics determined for Dresdenlake are compatible with areas of the Braidwood lake.4.1-4. 5/737/73 Biological studies have been performed intermittently on Dresden lake.A recent study(3a) conducted during 1972 examined populations of severalof the major aquatic communities. The more common species of thesecommunities are indicated in Table 4.1-1.Most of these species have also been found in the Kankakee River in thevicinity of the proposed intake pipeline to supply water to theBraidwood cooling lake. It is expected that these species may also M.R.become established in the Braidwood lake. The Dresden study, however,illustrates the paucity of a benthic community indicating that at leasta few years will be necessary for benthic establishment (Section 5.1.4.2.2).The time factor for establishment of aquatic life and the-type andabundance of biota in the Braidwood lake will be specifically dependentupon the particular chemistry of lake development after lake formation.Those areas where the water table is raised to the surface may becomemarshy. Both shrub and herbaceous vegetation that are not normallyadaptable to aquatic habitats will die before the end of the first grow-ing season. Those plants that are capable of growing and reproducingin marsh or pond areas should survive if the flood water depth is notexcessive. Many marsh areas presently existing within the strip-minedportion of the site are in low areas and flooding will decrease existingstands.Much of the spoil that will constitute islands in the lake is now largelyunvegetated. With the creation of new shorelines and the raising of thewater table, new marsh areas will form as water availability improves onwhat are now higher areas. The flora of these areas presently consistsof tumbleweeds, grasses and some reclamation plantings. It should re-quire 2 to 5 years for marsh vegetation to become well established, andM.R.24.1-4a 5/737/73 considerably longer for extensive upland vegetation. Any unmined areasaround the lake removed from cultivation by a raised water table willdevelop good marsh and fallow field vegetation much more rapidly thanthe mined islands because of soil and drainage conditions more conduciveto rapid vegetative development. As noted in Section 2.5.2.4, lakeeffects on the water-table elevation are expected to be extremely, local.M.R.24.1-4b 7/73 4.1.5.2 WILDLIFEIt is reasonable to assume that any animal preferring dry nesting orfeeding grounds will be largely displaced from the area after lake con-struction. Some animals, depending on their requirements and adapta-bility, will simply move to the higher levels. However, emigrationfrom the area to peripheral regions will increase the biotic stress with-in surrounding habitats and the populations can be expected to return totheir pre-emigration levels.Considering the habitat requirements of the important species (Section2.7.1.7.5) known to presently be in the area, predictions may be madeof the impact of plant and lake construction.The principal small game habitats are cultivated fields and woodlands.Small game will be excluded largely from flooded areas. The bobwhite,cottontail and mourning dove would benefit from any tree or shrubgrownareas that will develop between the lake and cultivated fields. (43 Thecottontail will find satisfactory habitat on the high ground of spoilislands as grass, shrub and marsh vegetation develop. (4,5)Initially, there will be no satisfactory deer habitat remaining withinthe affected area. Any mixed tree, shrub and forb cover that mightdevelop around the lake will be attractive to the whitetail.(6)The number of waterfowl in the area can be expected to increase signi-ficantly. Because plant operation will prevent complete icing of thelake, it could become an important overwintering area if sufficient foodis available.(7'8) Waterfowl feed on the waste grain from agriculturalcrops, the seed and foliage of aquatic, marsh, and moist-soil plants. Sa)M.R.27/734.1-5 5/73 Several bushels of corn and soybeans are left per acre by combines usedin the harvest of these grains in Illinois. Mallards, black ducks, andgeese utilize these waste grains extensively for food.(8a,8b) Other speciesof waterfowl make little use of agricultural crops in Illinois.(80In the Braidwood area, fall plowing of one-half to three-fourths of thecorn and soybean fields greatly reduces the amount of waste grainavailable for waterfowl use. Without refuge lands near the Braidwoodcooling lake, harassment of field feeding waterfowl by hunters wouldalso hurry their departure.(8d)Because the depth of most of the lake basin is over 10 feet, it isanticipated that aquatic and marsh plants would occur in only kmallquantities.Most marsh plants (cattails, sedges, bullrushes, etc.) grow in shallowwater (1-18 inches). These plants produce little food for waterfowl.The ecological group of plants that provide the greatest amount of food M.R.for ducks in Illinois are the moist-soil plants: duck millet,nutgrasses, water hemp, large-seeded and nodding smartweeds and tealgrass.(8b18c) These moist soil plants develop on mud flats exposed byretreating water in shallow-basined lakes. Water levels at the proposedBraidwood lake would be in a stabilized condition, thereby preventingthe growth of moist.soil plants.M.R.24.1-5a 7/73 Considering the amount and type of available food sources in the Icooling lake area and the number of days of waterfowl use, it is IM.Rnot expected that any significant impact on the lake ecology willresult.(8d)It is expected that initial inundation will exclude all furbearers fromthe area. As extensive cattail areas and other marsh vegetation developalong the island shores, the muskrat should return to the area accom-panied by mink that prey on the muskrat and smaller rodents. As frogsand other aquatic animals become more numerous, ground-denning raccoonsM.R.24.1-5b 7/73 may move into the area. The beaver will not be expected until substan-tial cottonwood or willow stands have become established which they canuse for food supply. Foxes, woodchucks, opossums and striped skunksprefer drier inland habitats and would not be expected to inhabit theislands.(9'lO'll) Small rodent populations should maintain popula-tion densities where possible similar to the densities now occurring incomparable areas. The deer mouse will probably dominate for the first15 to 30 years after island formation, after which the white-footed mousemay become more abundant.(12)It can be concluded that as good vegetative cover becomes established onthe islands, the lake will furrish excellent waterfowl, muskrat and minkhabitat. There may also be satisfactory raccoon habitat. Though over700 acres of good upland wildlife cover may develop on the islands,such species as deer, fox, opossum and skunk will probably not inhabitthe islands because the individual islands may not be large enough tosupport a population and inter-island movement of these land dwellerswould be a deterrent. Because of their more limited daily range, suchdry-land species as woodchucks, pocket gophers and rabbits may gradually M.R.2inhabit the larger islands. Ground denning animals will move away fromthose areas near the lake where the water table approaches the surface.4.1.6 MISCELLANEOUS EFFECTSNo construction of off-site roads is planned since existing roadways willbe adequate. Some 21,000 linear feet of on-site roads will be requiredincluding 17',000 feet that will be made permanent.The number of site construction workers will average about 1033 over thefive-year period required to complete the plant.4.1-6, 1,3 Construction activities on the Kankakee River will include the pumphouseintake and discharge structures. A temporary cofferdam and dredgingoperation will be necessary during construction of the intake and dis-charge.Construction of intake and discharge structures on the banks of theKankakee will adhere to the requirements of the U. S. Army Corps ofEngineers and the Illinois Environmental Protection Agency. Due to therelatively small size of these structures, the dredging operation isconsidered to be of local nature. The extent of disturbance isanticipated to be about 1/2 acre of river bottom. Dredged material willbe placed either on a barge or used as fill on the dry bank of the river.If a cofferdam was found to be necessary, it would be constructed prelim-inary to the dredging.4.1.7 IMPACT ON HUMAN HABITAT M.R.2There will be very little disturbance of human habitat which is presentlylocated on the site. Construction of the Braidwood Station and associatedcooling lake will affect 11 private dwellings and two mobile homes involv-ing the relocation of 32 persons.Explosion noise will be minimized by the use of small multiple chargesand most truck activity will take place within the confines of the plantsite and lake itself.No provisions will be made for workers and their families as far ashousing, transportation or education is concerned. The workers generally4.1-77/73 Supplement 4do not bring their children with them and they live in trailers orother housing as available.No change in the accessibility of historical or archaeological sites is 4anticipated. No such sites within the construction area are known atthe present time and the probability of any still existing within thelake or plant site boundaries is very low, since most of the area hadbeen cleared and cultivated for agriculture over the past severaldecades or grossly disturbed by strip mining. For further details, see 4Appendix 14.7.IM.R.27/734.1-7a 6/74 4.1.8 MITIGATION OR REVERSAL MEASURESMitigation or reversal measures will include erosion control by regularleveling of rutted areas and maintenance of present gradients or contours.Natural repopulation of unflooded areas should occur by the end of theconstruction period, and redevelopment of natural cover on areas not inthe immediate vicinity of plant structures will be encouraged as soonas possible in the construction period.No truck traffic control other than general monitoring will be maintainedat Braidwood. Construction material for the plant in the form of steel,concrete and miscellany, will be the only presently known requirementsfor trucks coming on site once the machines and men have been assembledthere initially to institute the construction. Most of the material fordikes and land fill will be obtained from the lake and plant site locations.Dust will be stabilized by water sprinkling on roads and if necessaryin the construction area. Dust control measures will be used through-out the construction period. The surface soils in the site area aresandy and not prone to dusting. Dust from the explosives use or frommining the clay till should be minimal and, because of the nature of thematerial and the present terrain, probably restricted to the site area.Because most of the area involved will be encompassed by the lake orplant structures, there should be little need for landscape restoration.Maintenance of gradient and restoration of general contours with sur-face seeding as required for erosion control will be conducted.Erosion will be minimized as soon as possible during construction bylandscaping of borderlands, blacktopping of road areas and minimizingslope gradients.There should be no landscaping problem imposed by construction spoilpiles, since all of the spoil will be used for land fill at the plantsite and for dike construction.4.1-8 All trash, as such, will be removed by contractors froom the site anddisposed of in accordance with local regulations and general Edison policy.At present, the latter requires daily policing of the area, noburning of paper, cardboard or wood and disposal of trees and brush bychipping.4.1.9 POSSIBLE BENEFICIAL CONSEQUENCESWhile there are no specific beneficial consequences to previous land useto be brought about by installing the lake and plant, the advantageoususe of the spoil for land fill and dike construction and the potentialof the lake as a year round refuge can at least be noted. Replacementof open, strip-mined areas with a lake and power plant should be anaesthetic benefit to the area. The large lake surface remaining unfrozenthroughout the winter will prove attractive to migrant waterfowl.In regard to the restoration of wildlife habitat, a maintained, warm-waterlake with numerous islands should be attractive to waterfowl and mammals,particularly since it will not be opened to the public. As such, thegeneral lake and borderlands within the control of Edison might be con-sidered an "unofficial" refuge, although no particular effort to estab-lish it as such will be made.4.1-9 5.1.6.3 NATURAL CIRCULATION OF THE RIVERThe plant will not influence the natural circulation of the KankakeeRiver because of the low lake intake and discharge velocities relativeto the total flow of the river.5.1.7 TERRESTRIAL IMPACT OF BRAIDWOOD LAKEThe impact of the heat dissipation system on the terrestrial ecology ofthe area is due to the presence of the lake rather than the operation ofthe cooling condensers. For this reason, the impact of the lake onterrestrial systems is discussed in Section 4.1.4, Effects of Lake Con-struction.M.R.25.1-25 7/73 Supplement 2or other considerations should suggest factors to the contrary, addi-tional programs will be initiated to fully evaluate those factors."Prevailing" wind directions, that is, those directions from which thewind blows most frequently, are generally those from the south to west,i.e. the wind blows most frequently towards the northeast in northernIllinois. This is shown in Figure 6.2-6 which presents the DresdenJuly 1971 -June 1972 125 -foot annual wind rose from Figure 2.6-2 andthe Argonne National Laboratory 1951-1971 150-foot annual wind rose. At 2Braidwood a southwest wind will be blowing from the plant towards themeteorological tower but the 2200 foot interval between the two facili-ties will alleviate any misrepresentation of the site meteorology afterthe plant is constructed. The Braidwood meteorological tower is locatedin the center of a large open field with no other tall structures ortrees in the vicinity. Hence the tower is essentially free of aerodynam-ic influences for all directions.6.2.5 ECOLOGICAL MONITORING6.2.5.1 AQUATIC MONITORINGAquatic monitoring will be conducted in the Kankakee River and HorseCreek, and will evolve from the preoperational aquatic monitoring pro-gram described in Section 6.1 which was in effect through September, 121973. The methods indicated in Table 6.1-3 will be consistent at allsampling locations to allow comparative analysis.6.2.5.2 TERRESTRIAL MONITORINGThe objectives of the present terrestrial inventory are to documentfauna and flora now occupying the site, their diversity, distribution,and relative abundance. During preconstruction and construction,monitoring will be modified to assess the change in those species whichhave been determined to be impact susceptible in the preoperationalstudies.6.2-101/74 14.0 APPENDIX 0 -SUPPLEMENTARY TERRESTRIAL DATA FOR THEBRAIDWOOD SITEThis Appendix contains Tables 14.0-1 through 14.0-17 whichinclude data on biota collected, trapped or observed at the Braidwoodsite during the winter and spring 1973 terrestrial surveys and aletter from R. Kendall Baker, Acting Curator, University of IllinoisHerbarium, acknowledging donation of plant voucher specimens collectedat the Braidwood site during fall 1972 terrestrial survey.M.R.27/73 Table 14.0-1COMMON PLANTS OF A FIELD OUT OF CULTIVATIONFOR TWO YEARS*(Total Cover 52%)**aCommon NameGrassesCommon crabgrassSand dropseedGrassForbsFrostweedAlfalfaRagweedGoldenrodMustardWild lettuceOyster-plantBushy EuthamiaPartridge peaWormwoodCarrotWinter vetchIndian mallowMintNon-flowering PlantsLeafy moss* Spring survey (Mayintercept analysisments. A total ofBotanical NameDigitaria sanguinalisSporobolus cryptandrusGramineae (seedling)4<I<1Aster pilosusMedicago sativaAmbrosia artemisiifoliaSolidago sp. (rosette)Cruciferae (rosette)Luctuca canadensisTragopogon dubiusEuthamia gymnospermoidesCassia fasciculataArtemisia caudataUmbelliferae (seedling)Viccia villosa.Abutilon theophrasteLabiatae (seedling)352395431<I<I<I<I<I<1<1Composition, %Unidentified4.1973) based on Transect 1, Figure 6.1-2, a pointwas conducted at 1-foot intervals on 50-foot seg-500 point observations were made.** Area of ground covered by standing vegetation.M.R.27/7314.0-1 Table 14.0-2COMMON PLANTS OF A WOODLAND AREA*Common NameTreesRed oakWhite oakWild black cherryShrubsWild rosePrairie willowBlack raspberrySmooth sumacNew Jersey teaGrassesMuhly grassLittle bluestemGrassPanic grassPrairie cord grassCommon crab grassStar grassWitch grassSand reedForbsFigwortCommon cinquefoilTrue Solomon's-sealViolet wood-sorrel(Total Cover 61%)**Botanical NameQuercus rubra (seedling)Quercus albaPrunus serotina.Rosa (hybrid)Salix humilisRubus occidentalisRhus glabraCeanothus americana.Muhlenbergia glabrifloraAndropogon scopariusGramineae (seedling)Panicium sp. (no flowers)Spartina pectinataDigitaria sanguinalisHypoxis hirsutaPanicum capillareCalamovilfa longifoliaScrophularia lanceolataPotentilla simplexPolygonatum commutatumOxalis violaceaComposition, %<1<1<11042<l< 110521<1<1<1<1<15333(continued) M.R.214.0-2 7/73 Table 14.0-2(continued)Common NameBotanical NameComposition, %Forbs (.continued)Bushy EuthamiaAsterAsterGoldenrodPussytoesPartridge peaWild sorrelRough blazing starHog-peanutWestern false foxgloveHoary pucconCatchflyCommon ragweedTall tickseedCommon yarrowLance-leaved violetSand phloxPurple milkwortBirdfoot violetLeggetts pinweedBlue vervainPrairie violetLousewortSavoryleaf asterMuletailTall cinquefoilField goldenrodWild geraniumAmerican feverfewEuthamia gymnospermoidesAster sp. (seedling)Aster sp. (rosette)Solidago sp. (rosette)Antennaria plantaginifoliaCassia fasciculataRumex hastatulusLiatris asperaAmphicarpa bracteataAureolaria grandifloraLithospermen canescensSilene sp. (seedling)Ambrosia artemisiifoliaCoreopsis tripterisAchillea lanulosaViola lanceolataPhlox bifidaPolygala sanguiniaViola pedataLechia leggettiiVerbena hastataViola pedatifidaPedicularis canadensisAster lineariifoliusErigeron sp. (rosette)Potentilla arguta,Soidago nemoralisGeranium carolinianumParthenium integrifolium2222<1<I<1<1<1<1<1<1<1<1<I<1<I<I<I<I<I<I<I<1<1<1<1(continued)14.0-3M.R.27/73 Table 14.0-2(continued)..Common NameBotanical NameComposition, %Forbs (continued)Lead plantRockrosePhloxFalse Solomon's-sealArrowleaved violetSt. John's-wortEvening primroseSedgesSedgeSpike-rushOther MonocotOhio spiderwortNon-Flowering PlantsMossCinnamon fernMarsh fernLichenAmorpha canescensCistaceae (seedling)Phlox sp. (seedling)Smilacina racemosaViola sagittataHypericum sp. (seedling)Oenothera sp.Carex sp. (no flowers)Eleocharis ovataTradescantia ohiensisUnidentifiedOsmunda cinnemomiaThelypteris palustrisUnidentified<1<1<1<1<l<1<114<1<121< 1<1Spring survey (May 1973) based on Transects 4 and 8, Figure 6.1-2,a point intercept analysis was conducted at 1-foot intervals on50-foot segments. A total of 2000 point observations were made.** Area of ground covered by standing vegetation.M.R.2.7/7314.0-4 Table 14.0-3COMMON PLANTS OF A MARSH AREA*Common NameTreesBlack willowWild black cherryShrubsPoison ivyWild roseElderberryBlack raspberrySmooth sumacGrassesKentucky blue grassHungarian bromegrassMuhly grass"BromegrassPrairie cord grassForbsGoldenrodAsterWild parsnipWestern false foxgloveWild strawberryCommon ragweedWild carrotCanada thistleBedstrawSwamp dock(Total Cover 72%)**Botanical NameSalix nigraPrunus serotinaRhus radicansRosa (hybrid)Sambucus canadensisRubus occidentalisRhus lab..Poa pratensisBromus inermisMuhlenbergia glabrifloraBromus sp. (sterile)Spartina pectinataSolidago sp. (rosette)Aster sp. (rosette)Pastinaca sativaAureolaria grandifloraFrageria virginianaAmbrosia artemisiifoliaDaucus carotaCirsium arvenseGalium aparineRumex sp.Composition, %11<1<<I<I<4<142<1<1943111111I(Continued)14.0-5M.R.27/73 Table 14.0-3(continued)Common NameForbs (continued)Small-flowered buttercupAlfalfaCinquefoilMarsh PlantsRushField horsetailSpike-rushSedgeBroad-leaved cattailOther MonocotsTiger-lilyBotanical NameRanunculus abortivusMedicago sativaPotentilla intermediaJuncus sp. (immature)Equisetum arvenseEleocharis ovataCarex sp. (immature)Typha latifoliaLilium tigrinumComposition, %1112731<1<3*Spring survey (May 1973) based on transect 10 (off-site), a.pointintercept analysis was conducted at 1-foot intervals on 50-footsegments. A total of 969 point observations were made.**Area of ground covered by standing vegetation.M.R.27/7314.0-6 Table 14.0-4COMMON PLANTS OF RECENTLY STRIP-MINED AREAS*(Total Cover 17%)**Botanical NameCommon NameComposition %TreesCottonwoodRussian olive***GrassesFoxtailCommon crabgrass.Hungarian bromegrass***ForbsAlfalfa***Sweet clover***Canada thistleCommon ragweedRussian thistleFigwortWestern false foxglovePopulus deltoidesEleagnus angustifoliaSetaria sp. (no flowers)Digitaria sanquinalisBromus inermisMedicago sativaMelilotis officinalisCirsium arvenseAmbrosia artemisiifoliaSalsola pestiferScrophulariaAureolaria grandiflora2121141282I1<1<I* Spring survey (May 1973) based on transect 2, Figureintercept analysis was conducted at 1-foot intervalsA total of 1000 point observations were made.** Area of ground covered by standing vegetation.* Planted during reclamation program.6.1-2, a pointon 50-foot segments.M.R.27/7314.0-7 Table 14.0-5COMMON PLANTS OF AN AREA STRIP-MINED IN THE 1960'SCommon NameTreesRiver birch***Eastern cottonwoodQuaking aspenShrubsSmooth sumacBlack raspberry***GrassesSandreed grassHack grassHungarian bromegrass***(Total Cover 17%)**Botanical NameBetula nigraPopulus deltoidesPopulus tremuloidesRhus glabraRhubus occidentalisComposition, %ForbsSweet clover***FrostweedGoldenrodOyster-plantBushy EuthamiaCommon ragweedAlfalfa***Russian thistleCalamovilfa longifloraCalamovilfa sp. (no flowers)Bromus inermisMelilotus officinalisAster pilosusSolidaQo sp. (rosette)Tragopogan sp. (rosette)Euthamia gymnospermoidesAmbrosia artemisiifoliaMedicago sativaSalsola pestifer<1<1<1<1<1275<1.3685431<1* Spring survey (May 1973) based on Transect 6, Figure 6.1-2, a pointintercept analysis was conducted at 1-foot intervals on 50-foot segments.A total of 1000 point observations were made.** Area of ground covered by standing vegetation.*** Planted during reclamation program.M.R.214.0-8 7/73 Table 14.0-6COMMON PLANTS OF AN AREA STRIP-MINED IN THE 1950'S(Total Cover 50%)**Common NameTreeEastern cottonwoodGrassesHungarian bromegrass***ThreeawnForbsWhite sweet cloverWild lettuceRussian thistleWild carrotMustardCanada thistleFrostweedGoldenrodIvy-leaved morning gloryMarsh PlantsBroad-leaved cattailSpike-rushSedgeBotanical NamePopulus deltoidesComposition, %Bromus inermisAristida sp. (seedling)Melitlotus albaLactuca canadensisSalsola pestiferDaucus carotaunidentifiedCirsium arvenseAster pilosusSolidago sp. (rosette)Ipomoea hederaceaTypha latifoliaEleocharis ovataCarex sp. (no flowers)<188<14<1<I<1<1<1<I<I02<I<1* Spring survey (May 1973) based on transect 5 (off-site), a pointintercept analysis was conducted at 1-foot intervals on 50-foot segments.A total of 1000 point observations were made.** Area of ground covered by standing vegetation.*** Planted during reclamation program.M.R.214.0-9 7/73 Table 14.0-7COMMON PLANTS OF AN AREA STRIP-MINED IN THE 1940's*Common NameTreesBlack willowBlack cherryShrubsBlack raspberryWild roseBlackhawWoody ClimberVirginia creeperGrassesHungarian bromegrassThreeawnLittle bluestemMuhly grassPanic grassBig bluestemBlue-eyed grassForbsSweet cloverAlfalfaBushy EuthamiaWild carrotFalse Solomon's-sealWild lettuceTrue Solomon's-seal(Total Cover 47%)**Botanical NameSalix nigaPrunus serotinaRubus occidentalisRosa (hybrid)Viburnum prunifoliumComposition %<1<18<I<1Parthenocissus quinquefoliaBromus inermisAristida sp. (no flowers)Andropogon scopariusMuhlenbergia glabrifloraPanicum sp.Andropogon gerardiSisyrinchium albidumMelilotus officinalisMedicago sativaEuthamia sp. (rosette)Daucus carotaSmilacina racemosaLactuca canadensisPolygonatum commutatum<.I8211111161474433(Continued)M.R.27/7314.0-10 Table 14.0-7(Continued)Common NameBotanical NameComposition %Forbs (continued)Deadly nightshadeFigwortCommon cinquefoilBlack nightshadeMilkweedVirginia ground-cherryCommon dandelionOyster-plantCommon ragweedCanada thistleHorsetail milkweedBushy EuthamiaGoldenrodWild strawberryRussian thistleTall thistleGarden asparagusHemp dogbaneSedgeSedgeNon-flowering plantLeafy mossSolanum dulcamaraScrophularia lanceolataPotentilla simplexSolanum nigrumAsclepias sp. (immature)Physalis virginianaTaraxicum officinaleTragopogon dubiusAmbrosia artemisiifoliaCirsium arvenseAsclepias verticillataEuthamia gymnospermoidesSolidago sp. (rosette)Fragaria virginianaSalsola pestiferCirsium altissimumAsparagus officinalisApocynum cannabinumCarex sp. (no flowers)unidentified3222<<l<1<1<1<1<1<1<l<l<1<1<1* Spring survey (May 1973) based on transect 3, Figure 6.1-2, a pointintercept analysis was conducted at 1-foot intervals on 50-foot segments.A total of 748 point observations were made.**Area of ground covered by standing vegetation.M.R.214.0-11 7/73 Table 14.0-8COMMON PLANTSOF A PARTIALLY WOODED AREA STRIP-MINED IN THE 1940'S*Common NameTreesBlack willowBlack locustQuaking aspen(Total Cover 43%)**Botanical NameSalix niaRobinia pseudoacaciaPopulus tremuloidesRubus occidentalisAureolaria grandifloraRosa (hybrid)Viburnum prunifoliumSambucus canadensisComposition, %11lShrubsBlack raspberryWestern false foxgloveRoseBlackhawElderberryWoody ClimbersForest grapeVirginia creeperGrassesPrairie threeawnMuhly grassLittle bluestemWitch grassForbsSweet cloverFrostweedCommon cinquefoilWild strawberryTrue Solomon's-sealFigwortBushy Euthamia51111Vitis vulpinaParthenocissus quinquefolia.Aristida oliganthaMuhlenbergia glabrifloraAndropogon scopariusPanicum capillareMelilotus officinalisAster pilosusPotentilla simplexFragaria virginianaPolygonatum commutatumScrophularia sp. (no flowers)Euthamia gymnospermoides2<112.98115853211(Continued)M.R.27/7314.0-12 Table 14.0-8 (Continued)Common NameForbs (Continued)False Solomon's-sealCommon dandelionRockroseSandwortPoison ivyHorsetail milkweedGoldenrodSpiderwortOsyter-plantPrairie-dockMintHog-peanutCommon ragweedMarsh PlantsField horsetailTall scouring rushBroad-leaved cattailBotanical NameComposition, %Smilacina racemosaTaraxicum officinaleHelianthenum sp. (no flowers)Arenaria laterifloraRhus radicansAsclepias verticillataSolidago sp. (rosette)Tradiscantia sp. (no flowers)Tragopogon dubiusSilphium terebinthinaceumMentha sp. (no flowers)Amphicarpa bracteataAmbrosia artemisiifolia<<1<l<1<1<1<1<1<1<1<l<1Equisetum arvenseEquisetum hyemaleTypha latifolia311Other MonocotSpiderwortTradescantia sp. (no flowers)<1* Spring survey (May 1973) based on transect 9, Figure 6.1-2, a pointintercept analysis was conducted at 1-foot intervals on 50-footsegments. A total of 1000 point observations were made.** Area of ground covered by standing vegetation.M.R.27/7314.0-13 Table 14.0-9SPRING FLORA COLLECTED AT THE BRAIDWOOD SITE DURING SPRING SURVEY*-/973Common NameScientific NameFALLOW FIELDForbtPuccoonLithospermum cancescensWOODLANDSTreeSassifrassShrubPrairie willowGrassesI-Blue-eyed grassMuhly grasstStar grassForbstBicknell's frostweedBlack huckleberryCommon cinquefoiltLouseworttDowny phloxtSand phloxtPussy-toesFalse Solomon's-seal.True Solomon's-sealI-Wild sorreltWood sorrelI-Arrowleafed violettBirdfoot violetPrairie violetWild indigoSassifrass albidumSalix humilisSisyrinchium albidumMuhlenbergia 9labrifloraHypoxis hirsutaHelianthemum bicknelliiGaylessacia baccataPotentilla simplexPedicularis canadensisPhlox pilosaPhlox bifidaAntennaria plantaginifoliaSmilacina racemosaPolygonatum commutatumRumex hastalulusOxalis violaceaViola sagittaViola pedataViola pedatifidaBaptisia leucophaea(Continued)14.0-14M.R.27/73 Table 14.0-9 (Continued)Common NameWOODLANDS (Continued)Sedges'SedgeSpike rushMARSH (off-site)TreeBlack willowFnrbstBedstrawt"FleabanelISmall-flowered buttercup* tSmall-leaved bedstrawF-Sweet cicelySedqeSpike rushAREAS RECENTLY STRIP-MINED(No plants flowering in area)AREAS STRIP-MINED IN 1960"SShrubtSand cherryScientific NameCarex spp.Eleocharis sp.Salix nigraGalium aparingErigeron philadelphicusRannunculus abortibusGalium vaillantiiOsmorhiza longisylisEleocharis ovataPrunus pumulaAREA STRIP-MINED IN 1950'S (off-site)(No plants flowering in area)AREA STRIP-MINED IN 1940'STreeBlack willowShrubSandbar willowSalix nigraSalix interior(Continued)M.R.27/7314.0-15 Table 11.0-9 (Continued)Common NameAREA STRIP-MINED IN 1940'S (Continued)ForbsScientific NameForest GrapetSandwortWild strawberryMarsh plantsVitus vulpinaArenaria laterifloraFragaria virginianaEquisetum arvensitScouring rush(sporangiaproductive)SedgeCarex sp.*Blossoming plants collected at Braidwood Site and prepared as herbariumvoucher specimens. Listings under areas indicate where the plants werecollected and does not exclude their presence in other site areas. Tables2.7-5 through 2.7-15 and 14.0-1 through 14.0-8 will indicate the multiplepresence of these plants.tPlants not previously collected or identified at the Braidwood.Slte.M. R .2.7/7314.0-16 Table 14.0-10MAMMAL SIGNS OBSERVEDDURING WINTER SURVEY -1973Common NameScientific NameEvidenceCultivated FieldsRaccoonDogNorth American moleProcyon latorCanis famiriarisScalopus aguaticustrackstrackstunnelsFallow FieldsWhite-tailed deerCottontail rabbitDeer mouseOdocoileus virginianusSylvilagus floridanusPeromyscus maniculatustracksdroppingstrappedWoodlandsDogPlains pocke gopherDeer mouseWhite-footed mousePrairie voleCanis familiarisGeomys bursariusPeromyscus maniculatusPeromyscus leucopusMicrotus ochrogastersightingmoundstrappedtrappedtrappedEdge AreasWhite-tailedEastern greyBeaverRaccoondeersqui rrelOdocoileus virginianusSciurus carolinensisCastor canadensisProcyon lotortrackssighting, nestslodges, cuttingstracksMarshland (off-site)BeaverMinkSqui rrelMasked shrewDeer -MouseCastor canadensisLutrea vison(unidentifieTSorex cinereusPeromyscus maniculatuscuttingstracks in snowtracks in snowtrapped, sightingtrappedArea Recently Strip-minedRaccoonDog/CoyoteDeer mouseProcyon lotorPeromyscus maniculatus14.0-17trackstrackstrapped(Continued)M.R.27/73 Table 14.0-10 (Continued)Common NameArea Strip-mined in 1960'sScientific NameEvidenceDeer mousePeromyscus maniculatustrapped.Area Strip-mined in 1950'sDeer mousePeromyscus maniculatustrappedArea Strip-mined in 1940'sBeaverPlains pocket gopherWhite-tailed deerRaccoonCottontail rabbitDogDeer mouseVoleCastor canadensisGeomys bursariusudocoileus vi rginianusProcyon lotorSylvi a us-s-fTori danusCanis familiarisPeromyscus mani cul atusMicrotus sp.cuttingsburrows, moundssightings, tracks,rubbings, droppingstracks in snowdroppingstrackstrappedtrail runs6M.R.27/7314.0-18 Table 14.0-11MAMMAL SIGNS OBSERVED DURING BRAIDWOOD TERRESTRIAL SURVEY -SPRING 1973Common NameScientific NameEvidenceCultivated FieldsDeer mouseRaccoonWhite-tailed deerPeromyscus maniculatusProcyon lotorOdocoileus virginianustrappedtrackstracksFallow FieldDeer mousePeromyscus maniculatustrappedWoodlandsCottontail rabbitDogDeer mouseWhite-footed mousePlains pocket gopherWhite-tailed deerSylvi lagus floridanusCanis familiarisPeromyscus maniculatusPeromyscus leucopusGeomys bursariusOdocoileus virginianussightingsighting/trackstrapped/neststrappedmounds/burrowstracks/buckrubEdge AreasEastern fox squirrelField mouseOpossum (immature)Red fox (red phase)White-tailed deerSciurus nigerPeromyscus sp.DideIphis virginianaVulpes fulvaOdocoileus virginianussightingnestsightingroadside killtracksMarshlandBeaverCastor canadensis(Continued)cuttings/dams14.0-19M.R.27/73 Table 14.0-11 (Continued)'Common NameMarshland (off-site) (continued)Scientific NameEvidenceRaccoonShort-tailed shrewWhite-footed mouseProcyon lotorBlarina brevicaudaPeromyscus leucopustracks/scatstrappedtrappedArea Recently Strip-minedDeer mouseDog/coyotePeromyscus maniculatus(unidentified)trappedtracksArea Strip-mined in 1960'sDeer mouseRaccoonPeromyscus maniculatusProcyon lotortrappedtracksArea Strip-mined in 1950'sDeer mouseDogRaccoonPeromyscus mani culatusCanis familiarisProcyon lotortrappedtrackstracks/scatsArea Strip-mined in 1940'sCottontail rabbitDogDeer mouseWhite-footed mousePrairie voleRaccoonWhite-tailed deerSylvilagus floridanusCanis familiarisPeromyscus maniculatusPeromyscus leucopusMicrotus ochrogasterProcyon lotorOdocoileus virginianussighting/droppingstrackstrapped/trail runstrappedtrappedtrackstracks/droppings14.0-20M.R.27/73 Table 14.0-12HERPETOFAUNA OBSERVED DURING BRAIDWOOD TERRESTRIAL SURVEY* -SPRING 1973Common NameScientific NameEvi dence**Snakes:Eastern yellow-bellied racerEastern hognoseColuber constrictor flaviventris.(2 sighted)Heterodon platyrhinos platyrhinos(caught)***Frogs:Chorus frogCricket frogNorthern cricket frogBlanchard's cricket frogSouthern leopard frogGreen frogPseudacris triseriataAcris sp.Acris crepita crepitansAcris crepitans blanchardiRana pipiens sphenocephalaRana clamitans milanota(heard call)(heard call(caught)(heard call)(caught)(heard call)****Turtles:Eastern painted turtleSnapping turtleChrysemys picta pictaChelydra serpentina(6 males trapped)(1 female trapped)(1 male trapped)*Weather: 1st night: (May 11, 1973), overcast; low temperature in low 40's.Ist day: (May 12, 1973), overcast; sparse-intermittent rain; lowtemperature in low 50's.2nd night: .(May 12,.1973), overcast; low temperature in mid-40's.2nd day: (May 13, 1973), overcast; low temperature in low 50's.**Observed during afternoon hours along Transect 3 (May 8 and 11, 1973).***Observed between 8:00 PM and 12:00 mid-night..(.May 11 and 12, 1973).****Trapped between 7:00 AM (May 12, 1973) and 9:30 AM (May 13, 1973).M.R.27/7314.0-21 Table 14.0-13SIGHT RECORDS OF AVIFAUNA DURING BRAIDWOOD TERRESTRIAL SURVEY*- WINTER 1973(Listed in Order of Decreasing Abundance)Common NameCultivated Fields (early morning)Scientific NameSlate colored juncoCommon crowField sparrowSong sparrowPrairie-horned larkJunco hyemalisCorvus bracYrhynchosMelospiza melodiaEremophila alpestrisFallow Fields (mid-morning and early evening).(None)Woodlands (early morning)Field sparrowSlate colored juncoJuncihemla 2sllEdge Areas (late morning and early evening)Rock doveCommon crowSparrow hawkColumba liviaCorvus brac-yrhynchosal'co sparveriusMarshland (mid-morning and mid-afternoon)Common crowSwamp sparrowCorvus brachyrhynchosgeorgianaArea Recently Strip-mined (early afternoon)Prai rie-horned larkEremophila alpestrisArea Strip-mined in 1960's (early afternoon)(None)(Continued)M.R.27/7314.0-22 Table 14.0-13 (Continued)Common NameArea Strip-mined in 1950's (Slate colored juncoRing-necked pheasantPrai rie-horned larkArea Strip-mined in 1940's (Common crowBobwhite covey (droppings)Scientific Namemid-morning and mid-afternoon)Junco hyemalisPhasianus colchicusEremophila alpestrismid-morning and mid-afternoon)Corvus brachyrhynchosCo-nT'us virginianusNM.R.27/7314.0-23 Table 14.0-14AVIFAUNA OBSERVED DURING BRAIDWOOD TERRESTRIAL SURVEY -SPRING 1973Common NameScientific NameObservationCultivated Fields*Red-headed woodpeckertRed-winged blackbirdtWhite-throated sparrowtBarn swallowBluejayMourning dovetEastern brown thrasherCultivated Fields* Edge Area-tBrown-headed cowbirdtEastern meadowlarkFallow Fields**tCardinalMourning dovetPurple grackleYellow-shafter flickerMelanerpes erythrocephalusAgelaius phoeniceusZonthrichia albicollisHirundo rusticaCyanocitta cristataZenaidura macrouraTaxostoma rufumMelothrus alterSturnella magnaRichmondena cardinalisZenaidura macrouraQuiscalus quisculaColaptes auratusseen-seenseenseenseenseenseenseencallseenseenseen5een* Survey conducted during early afternoon hours.**Survey conducted during morning, afternoon and evening hours.tAvifauna observed in this area for the first time during this surveyyear.(Continued)M.R.27/7314.0-24 Table 14.0-14 (Continued)Common NameScientific NameObservationWoodlands*tPalm warblerWhite-throated sparrowtVeeryBluejayPurple grackletBrown thrasherRed-headed woodpeckertRufous-sided towheetLeast flycatcherOven-birdtCarolina wrenSwamp sparrowtRed-bellied woodpeckertMourning doveWoodlands Edge Areas*tEastern kingbirdtRed-headed woodpeckerEastern crowtBrown thrashertBank swallowtBluejaytEastern bluebirdRose-breasted grosbeaktRufous-sided towheetBarn swallowtMyrtle warblertPalm warblerDendroica palmarum.Zonotrichia albicollisHylocichla fuscescensCyanocitta cristataQuiscalus quisculaToxostoma rufumMelanerpes erythrocephalusPipilo erythrophtalmusEmpidonax minimusSeiurus aurocapillusThryothorus ludovicianusMelospiza georgianaCenturus carolinusZenaidura macrouraseenseenseenseen,cal lseenseen, callseenseenseenseenseenseenseencoveyTyrannus tyrannusMelanerpes erythrocephalusCorvus brachyrhynchosToxostoma rufumRiparia ripariaCyanocitta cristatasialia sialisPheucticus ludovicianusPipilo erythrophytalmusHirundo rusticaDendroica coronataDendroica palmarumseenseenseenseenseencallseenseenseenseenseenseentSurvey conducted during late morning and afternoon hours.Avifauna observed in this area for the first time during this(Continued)14.0-25survey year.M.R.27/73 Table 14.0-14 (Continued) fCommon NameScientific NameObservationMarshland*tRed-winged blackbirdtWhite-throated sparrowtCatbirdtPalm warblerAmerican goldfinchSwamp sparrowtAmerican redstarttBaltimore orioletBarn swallowBluejaytBrown-headed cowbirdtCardinaltEastern brown thrashertNorthern water-thrushtStarlingtDowny woodpeckertYellow throattlndigo buntingMarshland Edge Areas*Red-winged blackbirdAmerican goldfinchtAmerican redstarttBluejayCatbirdtRed-headed woodpeckerAgelaius phoeniceusZonothrichia albicollisDumetilla carolinensisDendroica palmarumS~pinus tristisMelospiza georgianaSetophaga ruticillaIcterus galbulaHirundo rusticaCyanocitta cristataMelothrus aterRichmondena cardinalisToxostoma rufumSeiurus noveboracensisSturnus vulgarisDendrocopus pubescensGeothlypis trichasPasserina CyaneaAgelaius phoeniceusSpinus tristisStenophaga ruticillaCyanocitta cristataDumetella carolinensisMelanerpes erythrocephalusseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseen*Survey conducted during early morning, evening and night hours.tAvifauna observed in this area for the first time during this survey year.(Continued)14.0-26 M.R.27/73 Table 14.0-14 (Continued)Common NameScientific NameObservationArea Recently Strip-mined*Prairie-horned larkArea Strip-mined in 1960's**tBrown thrashertRed-winged blackbirdtBank swallowtEgret or heronEremophila alpestrisToxostoma rufumAgelaius phoeniceusRiparia riparia(unknown)seen, callcallseenseentracksArea Strip-mined in 1960'stBank swallowtPrairie horned larkEdge Areas**Riparia ripariaEremophila alpestrisseenseen" --A.F--A : " ".. 1] .-.,..m...... ..M2. --,*Survey conducted during morning, afternoon and evening hours."*Survey conducted during the afternoon hours.tAvifauna observed in this area for the first time during this survey year.(Continued)14.0-27M.R.27/73 Table 14.0-14 (Continued)Common NameScientific NameObservationArea Strip-mined in 1950's*tRed-winged blackbirdtCommon terntMourning dovetWestern meadowl ark1American bitterntAmeri can goldfinchtRock dovetCardinal1Eastern green heroni-RobintSong sparrowtWhite-throated sparrowtNashville warblertYellow throattPurple martintEastern mockingbirdtBarn swallow.tDowny woodpeckerEastern belted kingfisherAgelaius phoeniceusSterna hi rundoZenaidura macrouraSturnella neglectaBotaurus lentiginosusSpinus tristisColumba liviaRichmondena cardinalisButorides virescensTurdus migratoriusMelospiza melodiaZonothrichia albicollisVermivora ruficapillaGeothlypis trichasProgne subisMimus polyglottosHirundo rusticaDendrocopus pubescensMegaceryle alcyonseenseenseencallseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenseenArea Strip-mined in 1950's Edge Area*tPurple grackle Quiscalus quiscula-f-American goldfinch Spinus trististBaltimore oriole Icterus galbulatEastern brown thrasher Toxostoma rufumtRed-winged blackbird Agelaius phoeniceus*Survey conducted during late morning and early afternoon hours.tAvifauna observed in this area for the first time during this survey year.(Continued)MiR.27/7314.0-28 Table 14.0-14 (Continued)Common NameScientific NameObservationArea Strip-mined in 1940's1Red-winged blackbirdi-Eastern whippoorwilltCatbirdBluejay1Brown thrashertPalm warblertBaltimore orioletMallardtVeerytAmerican redstarttBank swallowtBobwhite quailtCommon goldfinchtMyrtle warbler1Yellow warblerAgelaius phoeniceusCaprimu1gus vociferusDumetella carolinensisCyanocitta cristataToxostoma rufumDendroica palmarumIcterus galbulaAnas platyrhynchosHylocichla fuscescensSetophaga ruticillaRiparia ripariaColinus virginianusSpinus tristisDendroica coronataDendroica petechiacall, callcallseenseencall, seenseenseenseenseenseenseenseenseenseenseenArea Strip-mined intBluejay-.Mourning dove1940's Edge Areas*Cyanocitta cristataZenaidura macrouracallcall*Survey conducted during the morning, afternoon, evening and night hoursin areas with widely scattered trees.tAvifauna observed in this area for the first time during this survey year.(Continued)M.R.27/7314.0-29 Table 14.0-14 (Continued)Common NameScientific NameObservati onArea Strip-mined in 1940's*tRed-winged blackbirdBluejaytVeerytAmerican redstarttEastern nighthawktMourning dovetRufous-sided towheetCatbirdtRobintBlack-and-white warblertMyrtle warblerAgelaius phoeniceusCyanocitta cristataHylocichla fuscescensSetophaga ruticillaChordeiles minorZenaidura macrouraPipilo erythrophthalmusDumetella carolinensisTurdus migratoriusMniotilta variaDendroica coronataseencall, seenseenseenseenseenseenseenseenseenseenArea Strip-mined in 1940's Edge AreastVeerytOven-birdtBrown creeperChimney swiftRobintEastern solitary sandpipertSpotted sandpipertUpland plovertBlack-throated greenwarblertChestnut-sided warblerYellow-shafted flickerHylocichla fuscescensSeiurus aurocapillusCerthia familiarisChaetura pelagicaTurdus migratoriusTringa solitariaActitis maculariaBartramia longicaudaDendroica virensDendroica pensylvanicaColaptes auratusseenseenseenseenseenseenseenseenseenseenseen*Survey conducted during morning hours in partially wooded areas.tAvifauna observed in this area for the first time during this survey year.M.R.214.0-30 7/73 Table 14.0-15INSECTS OBSERVED DURING THE BRAIDWOOD TERRESTRIALSURVEY -SPRING 1973OrderDictyopteraHymenopteraColeopteraHemipteraOdonataCommon NametWood cockroachBlack anttCornfield anttCarpenter anttYellowjacket (queen)BumblebeetJune beetle (larvae)MClick beetletStag beetle (male)tWhirligig beetletPyrochroid (unknown larvae)tBackswimmerSpittlebugtWater striderstDragonfly (nymph)Scientific NameCryptocercus sp.Monomorium sp.Lasius sp.Camponotus sp.Vespula sp.Bombus sp.Phyllophaga sp.Alaus sp.Pseudolucanus sp.(Family: Gyrinidae)(Family: Pyrochroidae-)Notonecta sp.Philaenus sp.Gerris sp.Anax sp.INSECT ALLIES OBSERVED DURING BRAIDWOOD TERRESTRIAL SURVEY -SPRING 1973Order Common NameDecapoda tCrayfishLithobiomorpha tCentipedeAraneae tWolf spiderScientific NameCambarus sp.Lythobius sp.Lycosa sp.tInsects and insect allies recorded for the firstSite during this survey year.time at the BraidwoodM.R.27/7314.0-31 Table 14.0-16TRAPPINGS OF SMALL MAMMALS DURING WINTER SURVEY* -1973Habi tat.TrapNights**Mammals/TrapNightDeerMouseWhite-footedMousePrairieVoleMaskedShrewCultivated FieldsCornSoybeans813600000 00 00000Fallow Fields90 0.14513 0 0Woodlands1440.0697I2Marsh (off-site)Areas RecentlyStrip-minedArea Strip-minedin 1960'sArea Strip-minedin 1950'sAreas Strip-minedin 1940'sTOTAL90 0.17890 0.04460 0.05090 0.0115 0 04 0 030 01100012350010021208010.0170.061*Weather: Ist night (January2nd night (January3rd night (January23, 1973)24, 1973)25, 1973)Jclearing, lowclear, low ofclear, low oftemp.300F.350F.in low 20's.**Number of traps X number of nights trapped.M.R.27/7314.0-32 Table 14.0-17TRAPPINGS OF SMALL MAMMALS AT BRAIDWOOD SITE DURING SPRING SURVEY* -1973Mammals/.Trap TrapNights** NightHabitatDeerMouseWhite-footed PrairieMouse VoleMaskedShrewCultivated FieldsCorn Fields(off-site)(newly plowed)Soybean Fields(newly plowed)Fallow Field(newly plowed)Fallow FieldWoodl ands60 0.01724 0.08324 0.20836 0.55596 0.10412524000064000600000000Marsh (off-site) 60 0.083Areas Recently Strip- 60 0.166minedArea Strip-mined in 60 0.1501960's01091400000I0000IArea Strip-mined in 601950's0.0160.0921.474Areas Strip-minedin 1940'sTOTAL1206001138 16*Weather: 1st night (May2nd night (May7, 1973),8, 1973),rain; low temperature in low 40's.light, intermittent rain; low temperaturein low 40's.**Number of traps X number of nights trapped.14.0-33M.R.27/73 UNIVERSITY OF ILLINOISURBANA. ILLINOIS 61801HERBARIUMDEPARTMENT OF BOTANYMarch 15, 1973Mr. Byron Lee, Jr.Assistant to the PresidentCommonwealth Edison CompanyPost Office Box 767Chicago, Illinois 60690
Dear Mr. Lee:
The University of Illinois Herbarium gratefully acknowledgesreceipt of the plant specimens on the attached list which werecollected at the request of the Commonwealth Edison Co. These plantswere collected, identified and mounted as voucher specimens represen-tative of the vegetation at the Braidwood Site in Will and KankakeeCounties, Illinois. Identification and certification of thesespecimens were conducted by Mrs. Judith Parrish and Mrs. Almut Jones,both of this University, and by Westinghouse personnel.Herbarium labels for each specimen have been prepared accordingto standard scientific requirements, indicating date of collection,habitat, common and scientific names, and name of collector andcertifier.It is understood that in receipt of this donation by theCommonwealth Edison Co., the plant specimens will be maintained ina separate collection for a period of one year, after which they willbe filed with the regular herbarium collection and used for educa-tional purposes within the University. The specimens, however, arespecifically labeled so that they may be identified and made availablefor future study by members of Commonwealth Edison Co. or theirrepresentatives.Thank you for your consideration.y truly, ,R. Kenda 1 BakerActing uratorRKB:salcc: Dr. P. R. EdmondsM.R.27/7314.0-34 HerbariumDepartment of BotanyUniversity of IllinoisPlants Collected, Identified and Prepared as Voucher Specimens from theBraidwood Site, Braidwood, IllinoisTRANSECT 1Solanum carolinense L.Lespedeza capitata Michx.Sidens aristosa (Michx.) Britt.Carex siccata Dewey (rare)Physalis virginiana Mill.Achillea millefolium L.Cassia fasciculata Michx.Vicia villosa RothPotentilla simplex L.Cenchrus pauciflorus Benth.Ambrosia artemesiifolia L.1pomoea hederacea Jacq.Polygonum pensylvanicum L.Euphorbia corollata L.Triticum aestivum L.Tragopogon dubius Scop.Sida spinosa L.Lepidium virginicum L.Amaranthus spinosus L.Eupatorium serotinum Michx.Oxalis dillenii Jacq.Aster pilosus Willd.Digitaria sanguinalis (L.) Scop.Oenothera rhombipetala Nutt.Erigeron canadensis L.Paspalum stramineum Nash.Lactuca canadensis L.Verbena hastata L.Strophostyles leiosperma (T&G) Piper.Crotalaria sagittalis L.Polygala sanguinea L.Taraxacum officinale WiggersSolidago canadensis L.Solidago gigantea Ait.Leptoloma cognatum (Schult.) ChaseSporobolus cryptandrus (Torr.) A. GrayM.R.214.0-35 7/73 ( TRANSECT 2Alnus glutinosa (L.) Gaertn.Chenopodium album L.Chenopodium berlandieri Mog.Platanus occidentalis L.Ipomoea purpurea (L.) RothEchinochloa crusgalli (L.) Beau.Polygonum pensylvanicum L.Solanium nigrum L.Euthamia gymnospermoides GreeneRobinia pseudoacacia L.Setaria faberi Hern.Eleagnus sp.Eleagnus cf. umbellata Thumb.Setaria viridis L.Salsola pestifer A. NelsonMedicago sativa L.Populus deltoides Marsh.Cycloloma atriplicifolium (Spreng.) Coult.Calamovilfa longifolia (Hook.) Scribn.TRANSECT 3Juncus torreyi CovilleAcer negundo L.Rhus glabra L.Salix interior RowleeVitis vulpina L..Sorghastrum nutans (L.) NashDaucus carota L.Coreopsis triptetis L.Scirpus validus VahlPrunella vulgaris L.Andropogon scoparius Michx.Phragmites communis Trin.Equisetum hyemaleAsclepias verticillata L.Melilotus alba Desr.verbascum thapsus L.Prunus sp.Sonchus uliginosus Bieb.Bidens aristosa Michx. (Also in 1)Andropogon gerardii Vitro.Aristida oligantha Michx.Aristida purpurascens Poir.Solidago nemoralis Ait.Solidago gigantea Ait.M.R.214.0-36 7/73 TRANSECT 3 (continued)Juniperus cf. virginiana L.Cornus florida L.Salix amygdaloides Anders.Panicum capillare L.cf. CaenomeleesTypha latifolia L.TRANSECT 4Apocynum cannabinum.L.Osmunda regalis L.Baptista leucantha T&GPopulus tremuloides Michx.Crotalaria sagittalis L.Aster azureus Lindl.Corylus americana Walt.Parthenium integrifolium L.Coreopsis tripteris L.Aureolaria grandiflora (Benth.) PennellQuercus rubra L.Scrophularia lanceolata PurshSolanum nigrum L.Potentilla arguta PurshAmphicarpa bracteata (L.) FernAster linearii folius L.Sassafras albidum (Nutt.) NeesQuercus Alba L.Helianthus mollis Lam.Liatris aspera Michx.Polygonatum oommutatum (Schultes) A. Dietr.Setaria faberi Herm.Helianthus hirsutus Raf.Echinacea pallida Nutt.Apios americana Medic.Salix humilis Marsh.Euthamia gymnospermoides GreeneOsmunda cinnamomea L.Thelypteris palustris Schott.cf. SpartinaAgrostis alba L.Hieracium canadense Michx.Muhlenbergia glabriflora Scribn.Rosa sp. hybridGaylussacia bacatta (Wang.) K. KochCeanothus americanus L.Agrimonia parviflora Ait.M.R.27/7314.0-37 TRANSECT 4 (continued)Silene stellate (L.) Ait.Gentiana puberula Michx.Smilacina racemosa (L.) Desf.Desmodium strictum (Pursh) KuntzeTephrosia virginiana L.Lechea leggetii Britt. & Hall.TRANSECT 5Cichorium intybus L.Xanthium strumarium L.Rumex crispus L.Eleocharis ovata (Roth.) R&SPotamogeton natans L.Scirpus acutus Muhl.Cirsium arvense (L.) Scop.TRANSECT 7Betula sp.Bromus inermis Leyss.Prunus hortulana BaileyAronia melanocarpa (Michx.) Ell.TRANSECT 8Helianthemum canadense (L.) Michx.Helianthemum biknellii Fern.Lechea villosa Ell.Lechea temafolia Michx.Amorpha canescens PurshViola sp.Aster linearii folius L.Gentiana puberula Michx.Silene stellata (L.) Ait.Aristida oligantha Michx.Anemone cylindrica A. GrayViola pedatifida G. DonLithospermum caroliniense (Walt.) MacM.Hypericum sphaerocarpumT-8 is extremely well represented by CistaceaeM.R.214.0-38 7/73 O Commonwealth Edison72 West Adams Street. Chicago. IllinoisAddress Reply to: Post Office Box 767Chicago, Illinois 60690June 10, 1985Mr. Harold R. Denton, DirectorOffice of Nuclear Reactor RegulationU.S. Nuclear Regulatory CommissionWashington, D.C. 20555
Subject:
Braidwood Station Units 1 and 2Environmental Report -OL StageNRC Docket Nos. 50-456/457
Dear Mr. Denton:
Enclosed is Amendment 7 to the Braidwood Station EnvironmentalReport -Operating License Stage. This Amendment consists of voluntaryrevisions to update and correct the report. The revisions cover materialcontained in the following chapters:Chapter 3 The StationChapter 6 Effluent and Environmental Measurementsand Monitoring ProgramsAmendment 2 QElOO.lSection 3.9 Transmission Facilities, Subsection 3.9.1 Location ofand Description of Right-of-Way and QE100.1 have been revised to clarifywhat aspects of the transmission rights-of-way (ROW) are timely for reviewin accordance with provisions of the National Environmental Policy Act.This Amendment removes details of future uses of portions of ROW's that arenot needed for construction of transmission lines to transmit power fromBraidwood Station Units I and 2. These ROW portions were originallyincluded in the Environmental Report because at the Construction Permitstage we considered that additional units in the Braidwood vicinity would beneeded to meet our load growth within seven years after Braidwood Units Iand 2 came into service. We determined that the output of those units couldbe delivered to our system most efficiently by a 765 kV transmission line,and we acquired the subject ROW portions for that purpose. Since that timethe situation has changed. Substantial decline in our load growth has ledto deferral of our planned capacity additions, and we do not now plan toconstruct additional units at Braidwood for at least 25 years. We,therefore, do not plan to construct a 765 kV line associated with BraidwoOdStation until at least that time.The existing land uses have been identified and archeologicalsurveys made for all ROW's associated with the Braidwood transmission linesincluding additional properties obtained for future use. It is not timely
'to conjecture what the ultimate use of this property may be since it is notrequired for Braidwood Station Units 1 and 2, the licensing of which is theFederal Action under consideration.Chapter 6: Effluent and Environmental Measurements andMonitoring Programs: Subsection 6.1.5.1 samplng media, Locations. andFrequency (Radiological Monitoring) has been revised so that air samplinglocations depicted on Figure 6.1-7 correspond more closely with theirlocations as indicated in Table 6.1-10.Three (3) originals and forty-one (41) copies of this lettertogether with forty-one (41) copies of Amendment 7 are being provided foryour use. In accordance with 10 CFR 51.40(b), an additional one hundrednine (109) copies of this Amendment are being held for direct distributionto Federal, State and local officials, as appropriate.Please address any questions that you or your staff may haveregarding this matter to this office.rely,VDavid H. SmithNuclear Licensing Administrator7277BDHS:BBB:ddcc: J. C. Keppler, RIIIRIII Inspector -Braidwood BRAIDWOOD STATIONENVIRONMENTAL REPORTOPERATING LICENSE STAGEVOLUME 14COMMONWEALTH EDISON COMPANY Braidwood ER-OLSVOLUNTARY REVISIONSAMENDMENT 1FEBRUARY 1983Amendment 1 consists of voluntary revisions to the following parts.of the Braidwood Station Environmental Report -Operating LicenseStage:Chapter 1KSectionSectionSectionSectionSectionSectionSectionSectionSectionSectionSectionSectionSectionSectionSectionSectionSection2.12.22.32.42.73.13.33.43.53.63.9'4.14.35.25.65.86.1Purpose of the Proposed Facility andAssociated TransmissionGeography and DemographyEcologyMeteorologyHydrologyNoiseExternal AppearanceStation Water UseHeat Dissipation SystemRadwaste Systems and Source TermsChemical and Biocide SystemsTransmission FacilitiesSite Preparation and Station ConstructionResources CommittedRadiological Impact from Routine OperationOther EffectsDecommissioning and DismantlingApplicants' Preoperational MonitoringProgramsAl-1
- Braidwood ER-OLS AMENDMENT 1FEBRUARY 1983Section 6.4 Preoperational Environmental RadiologicalMonitoring DataChapter 8 Economic and Social Effects of StationOperationChapter 11 Summary Cost Benefit AnalysisChapter 12 Environmental Approvals and ConsultationsThese revisions, along with related changes to the tables ofcontents and references, have been incorporated into the report aschange-out pages.Al-2 Braidwood ER-OLSAMENDMENT IFEBRUARY 1983BRAIDWOOD NUCLEAR GENERATING STATION -UNITS I & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGECONTENTSCHAPTERVOLUMEIIntroductionChapter 1.0Chapter 2.0Appendix 2.6AChapter 3.0Appendix 3.5AChapter 4.0AppendixAppendixAppendix4.1A4.184.1C-Purpose of the Proposed Facility andAssociated Transmission-The Site and Environmental Interfaces-Cultural, Historical, ArchaeologicalLetters-The Station-Data Needed for Radioactive SourceTerm Calculations for PressurizedWater Reactors-Environmental Effects of SitePreparation, Station Construction, andTransmission Facilities Construction-Terrestrial Monitoring Program Letters-Aquatic Monitoring Program Letters-Aquatic Monitoring Program, Construc-tion Phase, Executive Summaries-Construction Impact Control Letters-Environmental Effects of StationOperation-Examples of Dose Calculational Methods-Effluent and Environmental Measurementsand Monitoring Programs-Environmental Effects of Accidents11122222222222IIAppendix 4.5AChapter 5.0Appendix 5.2AChapter 6.0Chapter 7.0i Braidwood ER-OLS AMENDMENT 1FEBRUARY 1983AMENDMENT 2JULY 1983AMENDMENT 3SEPTEMBER 1983AMENDMENT 4OCTOBER 1983AMENDMENT 5DECEMBER 1983AMENDMENT 6MAY 1984AMENDMENT 7JUNE 1985BRAIDWOOD NUCLEAR GENERATING STATION -UNITS 1 & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGECONTENTSCHAPTER VOLUMEChapter 8.0 -Economic and Social Effects of StationConstruction and Operation 2Chapter 9.0 -Alternative Energy Sources and Sites 2Chapter 10.0 -Station Design Alternatives 2Chapter 11.0 -Summary of Cost-Benefit Analysis 2Chapter 12.0 -Environmental Approvals and Consultation 2Chapter 13.0 -References 2Amendment 1 -Voluntary Revisions 2Amendment 2 -NRC Review Questions and Responses 2Amendment 3 -NRC Review Questions and Responses 2Amendment 4 -NRC Review Questions and Responses 2Amendment 5 -NRC Review Questions and Responses 2Amendment 6 -Voluntary Revisions 2Amendment 7 -Voluntary Revisions 2ii Braidwood ER-OLSAMENDMENT 1FEBRUARY 1983BRAIDWOOD NUCLEAR GENERATING STATION -UNITS 1 & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGECONTENTSCHAPTERChapter 8.0 -Economic and Social Effects of StationConstruction and OperationChapter 9.0 -Alternative Energy Sources and SitesChapter 10.0 -Station Design AlternativesChapter 11.0 -Summary Cost-Benefit AnalysisChapter 12.0 -Environmental Approvals and Consul-tationChapter 13.0 -References-Amendment 1 -Voluntary RevisionsVOLUME2222222 j/ii Braidwood ER-OLSAMENDMENT 1FEBRUARY 1983AMENDMENT 5DECEMBER 19832.2.2 Terrestrial Environment2.2.2.1 IntroductionThe 4454 acres of the Braidwood site included 1213 acres ofagricultural land, 237 acres of open woodlands, and 3004 acres Iof strip-mine spoil. The ecology ofj52.2-20a Bra idwood ER-OLSeach of these areas is quite distinct. The unmined areas are^affected by past agricultural practices and soil types. Themined areas are affected by the acidity and texture of thesurface material, slope, ridge heights, and the amount of timeelasped since mining occurred. The type of reclamation practicedalso affects strip-mined areas.The flora and fauna observed during the baseline survey and theirinteractions were summarized by indicating their relativepositions within a generalized food web for the Braidwood site(see Figure 2.2-28). This food web schematic considered the siteas a whole without distinguishing between the various habitatssampled. It indicates general relationships between vegetation,herbivores, omnivores, insectivores, and carnivores found on thesite. Species grouped within boxes are generally similar in foodpreference, but a broad range of nutrient options may berepresented. Although human beings are not included, it shouldbe recognized that they are not only an omnivore in the web, butthat they also influence the web by their effects on the habitatof the individual species.Initial ecological studies at the Braidwood site began in thefall of 1972 and continued on a seasonal basis during the winter,spring, and summer of 1973. The results and projections of theconstruction inpact concluded from these studies for the fall,winter, and spring surveys are included in Subsections 2.7.1 and4.1.5 of the Braidwood Station Environmental Report -Con-struction Permit Stage (ER-CPS). The impact was assessed in theER-CPS and the Braidwood Final Environmental Statement (FES).The summer 1973 survey confirmed the minimal environmental impactas described in both the ER-CPS and FES.To augment the initial (1972 through 1973) baseline study, aprogram was designed for the 1974 through 1975 period. Theresults and conclusions presented in the 1974 through 1975 FinalTerrestrial Monitoring Report further support the impactassessment presented in both the ER-CPS and the FES. Theinformation obtained during these 2 years of baseline monitoringis summarized in the following subsections.2.2.2.2 objectives of the 1972 through 1973 Baseline SurveyThe major objectives of the terrestrial baseline study (1972through 1973) were as follows:a. to record and describe "important" species of floraand fauna in the site area during all four seasons ofthe year;b. to provide baseline data that could be used todevelop a monitoring program for detecting impacts ofplant construction and operation on the environment;2.2-21 Braidwood ER-OLS AMENDMENT 1FEBRUARY 1983AMENDMENT 5DECEMBER 1983c. to delineate the different types of habitats nearthe Braidwood site environs;d. to determine the ecological relationships betweenthe biotic and abiotic parameters present; ande. To offer recommendations concerning effects- ofconstruction on any "unique or unusual", plants oranimals found within zones of direct impact.2.2.2.3 Objectives of the 1974 through 1975 Baseline SurveyThe six major study objectives of the terrestrial baselinestudy (1974 through 1975) were the following:a. to document existing biota in recently purchasedareas that were not evaluated during baselinesurveys;b. to evaluate the biotic components of areas thatwill be subject to construction activity for sta-tion and switchyard facilities;c. to observe annual fluctuation in the biologicaldensity represented within the site;d. to expand the biological data base for predictingimpacts associated within the site;e. to provide background data for the initiation of aspecific program to evaluate the impact of sitedevelopment on migratory water fowl; andf. to identify significant parameters to be measuredor monitored in later studies to provide continu-ing estimates of real and potential impacts.2.2.2.4 Summary of the 1972 through 1973 Baseline SurveyThe following results were based on the field baseline studiesconducted from the fall of 1972 through the summer of 1973 inthe environs of the Braidwood site.a. The 4454 acre Braidwood site included 1213 acresof agricultural land, 237 acres of open woodlands, 15and 3004 acres of strip-mine spoil.2.2-22 Braidwood ER-OLS AMENDMENT 5DECEMBER 1983b. The climax community for the site was primarilytall grass prairie with some areas of deciduousforest. There are now, however, no climax com-munities remaining within the site boundaries, andall of the unmanaged natural communities are insome stage of succession toward climax. Plantdiversity was2.2-22a Braidwood ER-OLSdirectly related to the area studied and its degreeof disturbance, with the woodlands and marshes havingthe most diverse plant life and the recently minedareas having the least diverse plant life.c. The original soils of the site developed from twotypes of deposits, outwash water-laid sediments andglacial till, and are neutral-to strongly acidic, andgenerally sandy.d. The spoil of the site area is among the mostdifficult calcareous spoil to reclaim in Illinois.The three factors limiting successful reclamation inall areas are: (a) reduced quantities of organicmatter, (b) reduced concentrations of nutrients, and(c) the accumulation of inorganic salts such assulfates or calcium, magnesium, iron, and zinc.e. Those areas that have not been strip mined consistedof cultivated fields, fallow fields, woodlands, andedge areas such as roadsides and ditch banks.f. The vegetation of the strip-mined areas vary with theage of the spoil, the mining practices employed, andthe type of reclamation undertaken.g. Corn and soybeans dominate the cultivated crops inthe Braidwood site environs, with field weeds such asblack nightshade (Solanum nigrum), common thistle(Cirsium sp.), asters (Aster sp.), and morning glory(I2omoca hederacia) also present.h. Woodlands on site were dominated by red (Quercusrubra), black (Q. velutina), and white oak (Q. alba)overstory; understory composition was dominated bysmaller oaks, sassafras (Sassafras albidum), prairiewillow (Salix humilis), and hazelnut (Corylus sp.).i. Edge habitat areas were dominated by overstoryspecies of red oak and eastern cottonwood (Populusdeltoides); osage orange (Maclura pomifera), andsilver (Acer saccharinum) and sugar maples (A.Saccharum) played a lesser role.j. The dominant vegetation of the marsh areas includedbroad-leaved cattail (Typha latifolia) and the commonreed (Phragmites communis). In older successionalmarshes, cottonwood and sandbar willow (Salixinterior) had become established.k. Areas recently strip mined were characterized byspoil ridges with flat tops and sparse vegetation.\ 2.2-23 Braidwood ER-OLS1. Areas strip mined in the 1960's maintained a meagercoverage of grass, alfalfa (Medicago sativa), andsweet clover (Melilotus sp.). Poor edaphicconditions and long, steep ridges had restricted theestablishment of vegetation.m. Areas strip mined in the 1950's were characterized byerosion. Nearly half of the area was vegetated bybrome grass (Bromus inermis).n. Areas strip mined in the 1940's had had sufficienttime to naturally revegetate. Wooded areas, with acanopy height of about 20 to 30 feet, were composedof black willow (Salix nigr) , black locust (Robiniapseudoacacia), and the most important species,quaking aspen (Populus tremuloides).o. Reported onsite populations of small rodents,woodchuck (Marmota monax), rabbit (Sylvilagusfloridanus), muskrat (Ondatra zibethica), beaver(Castor canadensis), raccoon (Procyon lotor), coyote(Canis latrans), fox (Vulpes fulva), and deer(Odocoileus virginianus) were reported. Twenty-twospecies of mammals were identified on the Braidwoodsite during various seasons of the year.p. Reptile and amphibian diversity was the greatest inareas strip mined in the 1940's.q. Bird diversity was lowest in fallow fields, recentlystrip-mined areas, and areas strip mined in the1960's. The greatest diversity was found inmarshlands and in areas strip mined in the 1940's and1950's.r. The marshland and shrub-grown habitats supported thegreatest bird densities, and the forest, fallowfield, and cornfield habitats supported relativelysmall populations.s. Sampling data reinforce the idea of a longstandingdecline in raptorial bird populations.t. The three-county area average hunter harvest forringnecked pheasant (Phasianus colchicus) was 66 per100 acres; for bobwhite (Colinus virginianus), 18 per100 acres; cottontail rabbit, 83 per 100 acres;squirrels (Sciurus sp.), 41 per 100 acres; and formourning doves (Zenaidura macroura), 47 per 100acres.u. The unmined areas of the site were estimated tosupport 2 to 10 deer per square mile, with the higherdensities occurring in the more wooded areas.2.2-24 Braidwood ER-OLSv. The important waterfowl species of the three-countyarea included the Canada goose (Branta canadensis),mallard (Anas platyrhynchos), pintail (Anas acuta),black duck (Anas rubripes), teal (Anas discors ),shoveler (Spatula clypeata), widgeon (Marecaamericana), scaup (Aytha affinis , and wood duck (Aixsponsa).w. Signs of large fur-bearing mammals were observed, butno trapping data were obtained.x. The preferred habitat of trapped small mammalsincluded the following: house mice (Mus musculus incultivated fields, deer mice (Peromyscus maniculatus)in cultivated fields, fallow fields, or strip-minedareas with little tree cover, and white-footed mice(Peromyscus leucopus) in or near areas of trees.y. The generally observed faunal diversity and abundanceincreased on those areas that provided a variedhabitat.2.2.2.5 Summary of the 1974 through 1975 Baseline SurveyThe following results were based on the field baseline studiesconducted from 1974 through 1975.a. The unmined woodlands and marsh-ponds in the strip-mined areas had the most diverse plant life, andrecently mined areas showed the least speciesdiversity.b. The woodland areas near the site were almostexclusively composed of black oak, and the woodlandsin the northeast corner of the site had a few whiteoaks present.c. On more recently mined areas, xeric species such asbrome grass, alfalfa, Russian thistle (Salsola kali),and white clover (Melilotus alba) were present.d. On areas strip mined in the early 1960's, as in othermined areas, the direction of slope exposureinfluenced vegetation growth.e. The most frequently encountered species in the pondson areas strip mined in the early 1960's werepondweeds.f. Productivity studies of several ponds and lakesreflected the trend of productivity increasing withtime.2.2-25 Braidwood ER-OLSg. Twenty-three floral species were identified that werenot recorded for the Braidwood site in the 1973 ER-CPS.h. The most common species in the wooded areas were thewhite-tailed deer, cottontail, white-footed mouse,and fox squirrel (Sciurus niger .i. On the older strip-mined areas, the red fox, raccoon,woodchuck, cottontail, whitetail deer, deer mouse,and white-footed mouse were the most common.j. In the marsh-pond areas, the muskrat and beaver werefound in areas of vegetative growth.k. A total of 47 new bird species were identified on thesite during the 1974 through 1975 monitoring program.1. Chorus frogs (Pseudacris sp.), cricket frogs(Acriscrepitans), and American toads (Bufo americanus) werethe only species present at all sampling locations;the cricket frog was the most abundant.m. Aquatic turtles present on the Braidwood siteincluded the painted (Chrysemys pictamarginataxbellii), common snapping (Chleydraserpentina), Blanding's (Emydoidea blandingi , andspiny softshell (Trionyx spiniferus).n. Insect populations were more diverse and larger onthe older strip-mined areas with more diversevegetation than on those areas more recently stripmined and with little vegetation.2.2.2.5.1 Major Threatened and Endangered SpeciesNo species listed as endangered by the U.S. Fish and WildlifeService (USDI 1974) was resident of the Braidwood site. One birdspecies of undetermined status, however, was identified on thesite (USDI 1974). This was the eastern pigeon hawk:(Falcocolumbarius), an uncommon small falcon occurring throughout theUnited States. The pigeon hawk eats songbirds, shorebirds,rodents, and insects. It nests most commonly in Canada andAlaska and winters in the southern states, Mexico, and furthersouth (Robbins et al. 1966). This species would occur on thesite only while in transit during spring and fall migrations.Several other bird species of threatened or undetermined status,although not observed on the site, may visit the site duringmigration. The American osprey (Pandion haliaetus; statusundetermined), the American peregrine falcon (Falco peregrinus;endangered), and the northern bald eagle (Haliaeetusleucocephalus alascanus; endangered) all migrate through the areaand may be transitory visitors. All three nest in the northern2.2-26 Braidwood ER-OLSUnited States and Canada and winter to the south. The coolingpond may provide food for the eagle and osprey, which areprimarily fish-eaters, but neither are expected to becomepermanent residents (Robbins et al. 1966).An endangered mammal, the Indiana bat (Myotis sodalis , althoughnot observed, may possibly visit the Braidwood site. There areno known limestone caves in the area and although this speciesmay roost in hollow trees in the summer (Burt and Grossenheider1964), it would most likely be only an occasional nighttimevisitor to the site. No other threatened or endangered mammalsare known to be transients or residents of the Braidwood site.2.2.2.6 Regional Land Use and OverviewCoal has been mined in the Braidwood area for over 80 years(McKee 1972). The general age of the various stripped areaswithin the Braidwood site are shown in Figure 2.2-29. Within thepast 50 years, strip mining has replaced deep mining in thisarea. The first strip mining within the boundaries of the sitewas undertaken about 30 years ago in Section 28 of Reed Township,Will County. By 1947 the western half of Sections 33 and 28 hadbeen mined (Wascher et al. 1962). There was no further mining inthe Will County portion of the site until almost 1960. In 1950,the Peabody Coal Company built a tipple at its present locationin Kankakee County (Section 6, Essex Township) and began a fullscale operation in Pit 11 at that time. By January 1, 1952, 532acres in Kankakee County had been mined (Grandt and Lany 1958).Initially, the mining within the site was done by tandem shoveland dragline and by straight dragline (McKee 1972). In 1961, abucket-wheel was employed (-Knabe 1961). Since that time, theculm pile ridges have been higher and farther apart with steeperslopes. The mining operation returned to using a dragline in1972. The reclamation of strip-mine spoil within the site wasbegun on an experimental basis in 1947 by the U. S. ForestService as part of a program addressed to strip-mine spoilthroughout the state (Limstrom and Deitschman 1951). Plantingsbegun at that time continued on a voluntary basis until 1962 whenthe state of Illinois passed reclamation laws. For the past 10years, Peabody Coal has had a systematic planting program. Forthe past 3 years, ridges have been topped so that the most recentspoil areas consisted of long flat mesas separated by troughs;this is in contrast to the previous pattern of alternating peaksand troughs, with most of the surface consisting of slopes.Plantings have included seeding with grasses and legumes byairplane and hand planting trees and shrubs. During theirreclamation program, Peabody Coal Company has altered therelative quantities of various species planted as they havegained experience with successful plantings. Initially, largenumbers of sycamore (Platanus occidentalis}, red cedar (Juniperuscf. virginiana), and cottonwood were planted, but mortality washigh. More recent plantings included primarily black locust,2.2-27 Braidwood ER-OLSvarious pines, autumn olive (Elaeagnus umbellata), and Russianolive (E. angustifolia), since these species have had moresuccess. The cottonwoods naturally occurring in the area hadsuccessfully invaded many areas of strip-mine spoil, but thosethat were intentionally planted had a low survival rate (McKee1972).The climax community for the site was primarily tall-grassprairie with some areas of deciduous forest (Wascher et al.1962). No climax communities now remain within the siteboundaries, however, and all of the unmanaged natural communitiesare in some stage of succession toward climax. Fields that aretaken out of agricultural production soon produce a dense crop ofweeds. These are gradually crowded out and replaced by sod-forming grasses. Forest trees may also become established sincefire, which once excluded trees from the climax prairie, is nowcontrolled (Telford 1926).Because sandy places are subject to severe wind erosion, forestcover has been maintained in some areas. In Section 19, largertrees have been periodically cut so that the area might be called"open woods" with dense ground cover including numerous treeseedlings. This area is maintained in this condition to furnishwind breaks for the strips of cultivated land without shading.If management practices stopped, the forest canopy would thicken.Soon after land has been stripped for coal, vegetation willappear on the spoil (Limstrom and Deitschman 1951; Croxton 1928;Riley 1957; Kohuk 1950). The types of vegetation that begin toappear are predominantly those with airborne seeds or those fromthe original topsoil that happened to be deposited at the surfaceof the spoil. The initial colonizers include tumbleweed (Salsolapestifera) and smartweed (Polygonum pensylvanicum). These arereplaced by such things as sweet clover,'wi'd lettuce (Lactucasp.), and various wild asters. Cattails may become establishedaround ponds or where the water table is at the surface. Theearly woody species in natural succession are cottonwood,sycamore, black willow (Salix nigra), and blackberry (Rubus sp.).The first grass colonizers are barnyard grass (Echinocloacrusgalli), bluestem grasses (Andropogon sp.), and various three-awns (Aristida sp.).Depending on the soil conditions and the steepness of the slopes,the length of time required to go from barren spoil to greaterthan 50% ground cover including some woody species may require 10or more years. Trees on the slopes suffer severe losses due togully erosion. Trees in the bottoms are frequently killed bysiltation. In 3 to 10 years, the banks begin to stabilize by thenatural invasion of herbaceous species unless the spoil is tootoxic.Reclamation practices at the site have disrupted naturalsuccession on most of the strip-mine spoil mined within the past20 years. In reclaimed areas where seeded grasses had become2.2-28 Braidwood ER-OLSwell established, the herbaceous phase of natural succession wasreduced with a low species diversity. In areas where plantedlegumes and woody vegetation had also become established, thediversity was much higher and the result appeared to be the"speeding up" of natural succession.2.2.2.7 Results of the 1972 through 1973 Baseline Survey: VegetationThe areas of vegetation study at the Braidwood site can bedivided into two broad categories: strip-mined areas and unminedareas. Cultivated fields, fallow fields, marshes, woodland, andedge areas of roadsides were the areas undisturbed by miningactivity. The vegetation of the strip-mined areas varied withthe age of the spoil and the type of reclamation practicesemployed. Ten transects, shown in Figure 2.2-30, were analyzedin areas representative of the different vegetation communitiesfound within or near the site area boundaries. All but threetransects were located on the site in Will County. OffsiteTransects 5, 7, and 10 were located in Kankakee County. Thesetransects were chosen because they represented areas importantto, but not found within, the site. Descriptions of these areaswere based on surveys conducted in October 1972 and May andAugust 1973. A vegetation map of the Braidwood site area ispresented in Figure 2.2-31.2.2.2.7.1 Cultivated AreasThe areas in the vicinity of the Braidwood site werepredominantly agricultural communities.Transect 4, located in Section 19 of Reed Township, passedthrough soybean fields, which were representative of the majorcrop near the construction site. These cultivated plots werefound intermittently between woodland hedgerows approximately 100to 150 feet wide. Open woodland areas such as these serve aswindbreaks to prevent wind erosion on the somewhat sandy soil ofthe site. Other than the cultivated crops, vegetation in thesefields was limited largely to widely scattered weeds such asblack nightshade, common thistle, asters, and morning glory.Located in the southern end of the study area (offsite) inSection 18 of Essex Township in Kankakee County, Transect 7traversed cultivated field of corn and extended into a soybeanfield. Barnyard grass and other narrow-leaved annuals were thedominant "weedy" vegetation. This indicates the possible use ofbroad-leaved herbicides as a maintenance measure in the cornfield. The bean field was recently planted at the time of thesummer survey, and giant ragweed (Ambrosia trifida), goldenrod(Solidago canadensis), and wild carrot (Daucus carota) were thedominant natural invaders. A drainage ditch facilitated themovement of excess surface runoff between the two fields. Theditch was shallow and overgrown with very dense stands ofcattail. A list of plant species common in the cultivated fieldsof these areas can be found in Table 2.2-52.2.2-29 Braidwood ER-OLS2.2.2.7.2 Fallow FieldsThe fallow field analyzed (Transect 1), which was located in thenortheast corner of Section 20 of Reed Township, had been out ofcultivation for 2 years. Because wheat made up 1% of the totalcomposition of the vegetation sampled, the last cultivated cropwas probably wheat. The present vegetation, composed of annuals,biennials, and herbaceous perennials, is representative of theprimary successional stages (see Tables 2.2-53 through 2.2-55).A comparison of summer survey results with the fall and springresults indicated that species of ragweed (Ambrosiaartemisiifolia) and fleabane (Erigeron canadensis) had rapidlyreplaced the former dominants. This change, however, can beattributed to seasonal changes in dominance. Studies designed todetermine greater changes in community development would have tocontinue over an extended period of time. Plant cover durinq thesurvey year was about 60% in the fall,. 50% in the spring, and 70%in the summer with the remaining area covered with dead plantlitter.Other fallow fields of similar age and composition were foundalong the western portion of the site. Those east and north ofthe site appeared to have been out of cultivation longer andsupported extensive grass cover and some woody vegetation.2.2.2.7.3 WoodlandsThe woodland areas undisturbed by mining (Transects 4 and 8) werelocated in the northwest corner of the site in Section 19 of ReedTownship. A fixed-radius plot method was used to study the treepopulations to determine frequency, density, dominance, and anindex of importance.The woodland area of Transect 4 was approximately 100 to 150 teetwide and was situated between cultivated fields. The canopycover had been kept open by thinning out the larger trees.Consequently, much of the larger tree populations were stumpsprouts with an average height of 30 to 40 feet. Trees weremoderately spaced, averaging 26 feet between trunks. The mostfrequently encountered overstory tree species was the black oak,which occurred in 50% of the transects sampled (see Table2.2-56). Smaller oaks, sassafras, New Jersey tea (Ceanothusamericana), American hazelnut (Corylus americana. , and prairiewillows (Salix humilis) made up the understory. In localizedopen areas, brambles thrived intermixed with wild rose and grape.The herbaceous vegetation is a remnant of a sand prairie thatmigrated eastward through Illinois approximately 2000 to 4000years ago. At that time, the climate was warmer and drier(Xerothermic Period) than it is at present. As climaticconditions became more moist, the prairie withdrew leavingisolated pockets (sand areas and hill prairies) where localconditions were still favorable to many western plant species.2.2-30 Braidwood ER-OLSThis woodland area is such a pocket that has been unmanaged andallowed to proceed through successional stages to a woodlandecotype. Many of the grasses occurred on hummocks and were sodforming. Asters and other composites occurred throughout thearea. The common ground cover species in this area aresummarized in Tables 2.2-57 through 2.2-59. The herbaceousground cover was about 75% in the fall, 60% in the spring, and90% in the summer. Almost all of the remaining area was coveredwith plant litter leaving essentially no bare ground in thesewoods.The area covered by Transect 8 was essentially the same inspecies composition as-Transect 4. Stands of black oak were moredense, occurring in 100% of the 11 plots sampled. The canopy wassomewhat thicker, but only two other species occurred, New Jerseytea and American hazelnut.2.2.2.7.4 Edge AreasMost roadways in the site area were unpaved (dirt or gravel)access roads. They were commonly bordered by deciduous woodlandareas or hedgerows next to cultivated fields. Drainage wasfacilitated by runoff ditches that added considerably to the edgevegetation.Vegetation along roadsides in the strip-mined areas themselveswas almost nonexistent. Occasionally, individual plants ofRussian thistle, goose foot (Chenopodium berlandieri), aster, orgoldenrod were found. Tree-lined roadside communities in unminedareas, however, were often dense and quite diverse (see Table2.2-60). The dominant overstory species for hedgerow communitieswere red oak and eastern cottonwood. Osage orange trees, silvermaples, and sugar maples were occasionally border species.Lombardy poplars had been planted as windbreaks in a few areas.The vegetation along railroad lines was sparse and mostly limitedto composites and grasses. Various wild asters, goldenrods,beggars tick (Bidens aristosa), dandelions (Taraxicumofficinale), and chickory (Cichorium intybu) were the commoncomposites. Foxtails (Setaria faberii), three-awns (Aristidasp.), and panic grass (Panicum purpurea) were the more frequentgrasses. Occasionally, clumps of alfalfa, lamb's quarter(Chenopodium album), and bindweed (Convolvulus sp.) were alsofound. The tree species associated with the railroad lines atthe site were cottonwood and black willow. These usually werefound in drainage ditches near the tracks.Many of the ditches found along roadsides, railroad tracks, andbetween fields contained plants representative of marsh areas.The most common vegetation was the broad-leaved cattail and thecommon reed. Some of the more poorly drained areas had densestands of these two plants. Sandbar willows and cottonwoods werethe usual woody members in these areas.2.2-31 Braidwood ER-OLS2.2.2.7.5 Marsh AreasTransect 10 (offsite) was first established in the spring of 1973to study a marsh habitat near the Braidwood site. This largemarsh was located 1.5 miles southeast of the southern boundary ofthe site in Section 8 of Kankakee County. A 10-acre field wasallowed to go fallow because of a high water table and poordrainage. During the summer survey it was found that the groundwas firmand dry, obviously because summer is the drier part ofthe growing season, and during the spring the ground was found tobe the wettest. Ground cover was 72% in the spring and 94% inthe summer. The woodlands surrounding this marsh were slowlyencroaching on the area. Black willow was found in greatabundance in the far end of the marsh. Two species of maple werealso encountered. A dense stand of cattails in the area wasfound to be in standing water during the spring survey. This wasthe dominant vegetation associated with rush and sedge species.Older and more established communities were characterized bynearby cottonwood and sandbar willow stands. Peripheralvegetation often included foxtail grass (Setaria viridis), poisonivy (Rhus radicans), day lily (Hemerocallis fulva), and a varietyof aster, goldenrods, and other composites (see Table 2.2-61).Marshes within the site occurred infrequently and were in poorlydrained troughs within the strip-mined areas. The vegetation inthese marshes was briefly analyzed along established transectswithin the site. Marsh areas in the unmined portions of the sitehave been reduced because of drainage.2.2.2.7.6 Strip-Mined Areas2.2.2.7.6.1 Areas Recently Strip MinedThe effort made in strip-mined areas to facilitate reclamationand to prevent severe erosion makes the topography of these areasunique. The spoil ridges were leveled so that the top of thespoils are virtually flat. They existed in rows that were 100 to200 feet across. However, on either side of these plateaus weredeep gullies with 300 to 400 slopes. The troughs were silting inso that there was a flat bottom of varying widths. During thespring survey it was found that there were areas of standingwater in many of the troughs. In the fall and summer surveys thewater in these areas was slight. Only hard and cracked soilremained.Vegetation in this area (Transect 2) was sparse and 80% of theground was bare. The vegetation on the flat-topped areas wasdominated by the alfalfa planted during reclamation. Seededbrome-grass and sweet clover had not been successful. Instead,naturally occurring plants such as sandreed grass (Calamovilfalongifolia)., tumbleweed, and fleabane had taken hold insignificant numbers (see Tables 2.2-62 through 2.2-64). Otherprincipal invader plant species included ragweed., cocklebur(Xanthium chinense), and Canadian thistle (Cirsium arvense.2,.2-32 Bra idwood ER-OLSAlmost all of the vegetation on the slopes was tumbleweed(Russian thistle). It was quite localized, forming relativelydense stands in some slope gullies with large bare areas between.On the northern slopes, the vegetation had been more successfulthan on the southern slopes as a result of cooler temperaturesand lower insolation. A small number of cottonwoods were foundon these slopes. The trough floors were largely devoid ofvegetation.Trees had been systematically planted on the plateaus. Blacklocust, the largest of these trees, was doing relatively well.In the most recently strip-mined areas, where no reclamationplantings had been made, the vegetation was very sparse. Inthese areas, the total number of plants found consisted ofnaturally occurring plant species. The plant coverage in theseareas, however, was about the same as in the reclaimed areas.2.2.2.7.6.2 Areas Strip Mined in the 19609sThese areas were strip mined between 1962 and 1965. The bucket-wheel method of mining left ridges and narrows with long slopesranging from 200 to 450. Severe erosion had occurred resultingin siltation and deep gulleys. Outcroppings of shale werescattered throughout the area. Transect 6, which wasrepresentative of these areas, was located in Section 32 of WillCounty, which is centrally located within the site boundaries.About 80% of the land was bare in both fall and spring. Duringthe peak production period of summer, biomass was larger and 65%of the land was bare.Alfalfa and sweet clover comprised approximately 40% of thevegetation (see Tables 2.2-65 and 2.2-66). These two legumes andbrome grass were planted during reclamation and concentratedalong the high ridges. The slopes were essentially bare, withsmall amounts of tumbleweed and alfalfa localized in troughswhere siltation was not a problem.Three tree species, cottonwood, birch, and alder, were found inthe gentler sloping areas where moisture and temperature rangespermit survival. Tree plantings in this area, however, were notvery successful.It was on the gentler slopes that the greatest diversity ofvegetation occurred. Black raspberry (Rubus occidentalis),goldenrod, wild lettuce, tumbleweed, big and little bluestemgrass, sunflowers, and asters were commonly found in this area(see Table 2.2-66).Poor soil conditions coupled with severe topographical featureshad made the establishment of vegetation difficult. Novegetation was established on the shale outcroppings. A large2.2-33 Braidwood ER-OLSpercentage of the area was bare soil and rock with very littleplant litter, which is necessary for topsoil formation.The successional trend in this area could be noted as a movementtoward greater diversity. In the spring of 1972 and the fall of1973, only two species of grasses were recorded. The summersurvey revealed seven species of grasses present and substantialincreases in the species diversity of the forbs as well. Thiscould be interpreted as a progression toward stabilization.However, available nutrients, topography, exposure, and erosionwere the limiting factors accounting for the retardation of thisprocess (see Table 2.2-66).2.2.2.7.6.3 Areas Strip Mined in the 1950'sThe topography of these areas can be described as rounded ridgesworn by weathering and erosion. Standing vegetation covered 50%of the area. The bare areas were found on the steeper slopes,gullies, and rocky ridges. Slopes of 150 to 300 joined to formrounded and well drained troughs. A few larger ponds haddeveloped with marsh areas along the periphery. Transect 5,which typifies the general area, was located off the site in thesoutheast corner of Section 18 of Kankakee County.This area was heavily seeded with brome grass for reclamationpurposes. In general, grasses became established on strip-minedsoils slowly because of the lack of nitrogen in the raw soilmaterial. However, white sweet clover, a legume, was seededalong with the brome grass. This plant fixed nitrogen in thesoil, which allowed the slow-growing brome grass to becomeestablished, filling niches previously occupied by the sweetclover and replacing the clover. These plantings disrupted thenatural succession on the strip-mined spoils; only during thesummer survey did a small increase in species diversity occur(see Tables 2.2-67 and 2.2-68). Brome grass is a long-lived,sod-forming perennial. Because of its resistance to drought andcold, natural succession will proceed very slowly.Some of the common invader species in this area includedgoldenrod, tumbleweed, ragweed, asters, and Canadian thistle.The woody vegetation was clearly separated on the basis of waterrequirements. Box elder (Acer negundo) was found only on thewell drained north to northeast slopes, cottonwood was only inthe troughs, and black willow was only in the moist areas alongthe pond edges.In the marsh communities associations of pondweed (Potomogetonillinoiensis , broad-leaved cattails, and black willow werepresent. The drainage troughs leading into the marshes wereoccupied by three-awn grass and sedges. Spike-rush (Eleocharisovata), great bulrush (Scirpus acutus}) and pondweed interfacedthe pond and marsh areas.2.2-34 Braidwood ER-OLS2.2.2.7.6.4 Areas Strip Mined in the 1940'sThe areas strip mined in the 1940's were located in and aroundthe site area. The University of Illinois had an experimentalreclamation program in Section 28 of Will County that started in1946. Comparing all the disturbed areas at the Braidwood site,revegetation in this vicinity was most complete.Along Transect 3 in the southwest ccrner of Section 21 the plantcover was 75% in the fall, 50% in the spring, and close to 75% inthe summer (see Tables 2.2-69 and 2.2-70). The bulk of thevegetation was found in the troughs and on gentle slopes. Mostof the slopes along this transect were between 150 and 350. Theterrain was somewhat rocky along the ridges; these bare patchesappeared to be related to topography and soil conditions.Cottonwood was the dominant tree species, reaching heights of 20to 25 feet and scattered throughout the area (see Table 2.2-56).On a few of the northeastern slopes, dense stands of smooth sumacdominated with little or no understory vegetation present (seeTables 2.2-71 and 2.2-72). Saplings of black cherry, redmulberry (Morus rubra), and peach-leaf willow (Salixamiydaloides) were also scattered throughout the area. Three-awngrass, little bluestem, and big bluestem were the dominantgrasses. The forb population was quite diverse and largelycomposed of milkweed (Asclepias verticillata), white sweetclover, wild carrot, and goldenrod. In the surrounding shallowponds, submerged algae (Chara sp.) and floating-leaved aquatics(pondweed) were present. Scouring rush (Equisetum hymenale) wasalso found bordering the shallow areas of the ponds (see Table2.2-70).Partially wooded areas were found along Transect 9 in the south-central portion of Section 21. These were the oldest strip-minedareas on the Braidwood site. Cottonwood was the dominant treespecies, occurring in 100% of the test plots sampled on thistransect.Ten species of trees occurred here, indicating the woodland stageof development. Localized stands of wild grape, rose (Rosa sp.),and brambles occurred on the slopes and on the crests of thespoil hills.The understory hosted 30 different species of grasses and forbs.Little bluestem and Kentucky blue grass (Poa pratensis) were twoof the eight sand-prairie grasses present in large numbers (seeTable 2.2-72). sweet clover, goldenrod, sunflowers, bushyeuthamia (Euthamia gymnospermoides), and spurge .(Euphorbiacorollata) were found in the open areas. Bordering theintermittent ponds and areas where the water table was high,black willow and marsh plants such as rushes and cattailsoccurred. The total plant cover was 65%, and the remaining areawas covered by plant litter.2.2-35 Braidwood ER-OLS2.2.2.7.7 SuccessionAt the time of the survey, there were no climax communitiesexisting within the Braidwood site. Each of the different minedareas were likened to different stages of successionaldevelopment according to their age. Generally, the older thedisturbed area, the more plant cover, diversity, andstratification of the plant cover. The recently-mined areas,Iecause of little plant cover and severe topography, had beensubjected to extensive erosion and siltation, which compoundedthe problem of revegetation.All of the species identified during the summer 1973 samplingprogram are listed in Table 2.2-73.2.2.2.8 Results of the 1974 through 1975 BaselineSurvey: VegetationFloral data collected on the various study areas (see Figure2.2-32) are analyzed in the following subsections.The terrestrial vegetation encountered on the spoil mounds (orridges) and woodland areas of the Braidwood site during the 1974spring and fall surveys are listed in Table 2.2-74. The speciesassociated with marsh-pond areas are listed in Tables 2.2-75 and2.2-76. From these summary tables, the general distribution,diversity, and plant associations present on the Braidwood sitemay be determined. The species diversity is directly associatedwith the age of the strip-mined area studied and the degree ofdisturbance. For example, unmined woodlands and marsh-ponds inthe mined areas have the most diverse plant life. Recently-minedareas have less species diversity. Successional stages for eachof these community types were characterized on the basis ofspecies diversity, which may be related to temporal stages ofdevelopment.2.2.2.8.1 Cultivated AreasMuch of the land in the vicinity of the Braidwood site was usedfor agricultural purposes. Within the property boundaries of thesite, agricultural lands were generally located in the west andnorthwest sectors. Here, cultivated and fallow fields wereinterspersed between woodland windbreaks approximately 100 to 150feet wide. "Weedy" species commonly invading these fieldsincluded: black nightshade, common thistle, asters, and morningglory. No vegetation studies were conducted in the agriculturalareas during the 1974 survey because of the adequateinvestigation of the 1972 through 1973 baseline survey (seeSubsection 2.2.2.7.1). The primary concern in the agriculturalareas was land use rather than vegetational analysis; such areas,therefore, did not require an additional study.2.2-36 Braidwood ER-OLS2.2.2.8.2 WoodlandsWoodland areas undisturbed by mining (Study Areas A and B) werelocated in the western and northeastern portions of the site,respectively (see Figure 2.2-32). The fixed-radius plot methodwas used to study the tree populations in Study Area A, theproposed station site area. Since the individual trees in Area Bwere more randomly dispersed and uniformly dense than those inArea A, the point-quarter method was used to evaluate Area B.The parameters of density, dominance, frequency, and indexes ofimportance for each species in both areas are tabulated in Tables2.2-77 through 2.2-79. Statistical analyses were made such thatboth areas could be compared using these data even thoughdifferent sampling methods were used.The woodlands of Study Area A essentially occurred as 150-foot-wide strips bordering cultivated fields. The tree species with adiameter at breast height (dbh) greater than 1 inch were almostexclusively black oaks, with a high density of 1976 individualsper acre and an importance value (IV) of 97% (see Table 2.2-77).Most of the trees, however, were young saplings with a relativelysmall basal area (BA) of 21.6 square feet per acre. The majorityof black oaks occurred as stump sprouts (clumps of individuals),which suggests that selective harvesting of the oaks hadoccurred. The height of the trees ranged from 8 to 55 feet andaveraged 30 feet. The canopy was open because of the removal oflarge trees, which has allowed for continued understory growth ofbrambles such as blackberry and wild rose, with a great varietyof grasses and forbs. In a few low areas where surface water hadaccumulated, prairie willow and other willow species occurred.Fresh-water cordgrass (Spartina pectinata), Indiana grass(Sorghastrum nutans), and little bluestem grass were also foundin these moist areas. The common spring and fall plants of StudyArea A are listed in Tables 2.2-80 and 2.2-81.Unlike the woodland community of Study Area A, Area B was aneven-aged mixed oak woodland composed primarily of black oakswith a few white oaks. This forest was quite dense withapproximately 240 trees per acre (see Table 2.2-78). The canopywas essentially closed, thus limiting understory growth. Blackcherry, smooth sumac, and hazelnut saplings were commonunderstory species (see Table 2.2-79). In areas of sun flecks(breaks in the canopy cover) blackberry, blueberry (Vacciniumsp.), and wild grape thrived although much of the herbaceousground cover was sparse because of limited light penetration.Excessive leaf litter also hindered the establishment ofextensive ground cover.2.2.2.8.3 Prairie AreasApproximately 3000 years ago (Xerothermic Period), this regionwas part of a finger-like extension of prairie that traversednorthern Illinois and Indiana (Vestal 1913). When the climatelater became cooler and more moist, the western prairie species2.2-37 Braidwood ER-OLSthat had extended into Illinois unsuccessfully competed withtall-grass prairie species. In a few isolated pockets whereeffectve rainfall was limited and sandy soils occurred, thewestern species persisted. Before cultivation, wet prairie andmarshes occurred in the lowlands, and sand prairies and black oakoccurred on the dry ridges.As a result of alluvial deposits from the Kankakee River thatcause low soil moisture, the soils of the Braidwood site aresandy (Gleasm 1910). Coupled with the management of the blackoaks, the sandy soil has permitted the relict western sandprairie species to exist in places such as Area A.The herbaceous species in Area A were sampled during the springand fall surveys using the point intercept method. Sour dock(Rumex acetosella), horsetail, milkweed, nodding ladies-tresses(Spiranthes cernua), bush clover (Lespedeza capitata), and littlebluestem represented typical western sand prairie species in thisfloristically diverse area.The Illinois Nature Preserve Commission has identified typicalprairies north and east of the proposed station site. The extentof prairies on the site, however, had been decreased by grazing,agriculture, and strip mining. Small pockets of prairie stillexist in several locations in the northwest corner of the site.2.2.2.8.4 Strip-Mined AreasVegetation studies were conducted in areas strip mined in .1968,the early 1960's, and the 1940's. These studies were dividedinto two parts: (a) the aquatic flora of the pond and pondmargins, and (b) the terrestrial flora of the spoil ridges. Fivepermanent plots, 1 square meter in area, were established onvegetated areas (see Figure 2.2-33) of the spoil mounds todetermine the seasonal variation of the herbaceous cover(Phillips 1959). Using this data, predictions can be made of thevegetational composition on these ridges after cooling pondformation. For the marsh-pond studies, line transects wereestablished in vegetated areas to determine existing submerged,emergent, and littoral species.The following discussion describes the existing vegetationcommunities of the spoil ridges and ponds of the strip-minedstudy areas.2.2.2.8.4.1 Areas Recently Strip MinedReclamation in the recently strip-mined areas of Study Area 2made the topography here quite different from that of the otherstrip-mined areas on the site. The tops of the spoil ridges hadbeen graded so that they were virtually flat; however, deepgulleys existed between these plateaus. Runoff had depositedlarge amounts of silt in these troughs forming flat bottoms of2.2-38 Braidwood ER-OLSvarying widths. Because of siltation, there was increasedvegetation in some of these areas.Spoil mound drainage paths were devoid of vegetation. There wasalmost no "top soil", and approximately 62% of the area lackedvegetation (see Tables 2.2-82 and 2.2-83). Seeded brome grass,alfalfa, Russian thistle, and white sweet clover were thedominant species. Russian thistle was the most widely dispersedspecies as evidenced by its occurrence in four of the five plotssampled (see Table 2.2-82). Colonizing species such as ragweed,dandelion, fleabane, and aster were present in the plots and arethe typical invaders of disturbed areas (Jones 1971). The spoil'tops present a harsh environment, and the species occurring hereare adapted to extreme conditions of low moisture and nutrientlevels. In addition, insolation (incoming solar radiation) andtranspiration rates are high due to the lack of overheadprotection and drying winds. Together these factors result in axeric condition that limits colonization and establishment.The dominant species of the permanent plots and their seasonalshift of importance from spring to fall are listed in order ofdecreasing importance values in Tables 2.2-82 and 2.2-83.2.2.2.8.4.2 Areas Strip Mined in the 1960'sThe study area (Area 6) was mined in the early 1960's. Thetopographic features of high and narrow ridges with long slopesof 200 to 450 were the result of the bucket and wheel method ofstrip mining that was used at the time. Severe erosion had leftmany of the ridge tops and slopes completely bare. Shaleoutcroppings were scattered throughout the area. Study Area 6,which represented these areas, was centrally located on the site(see Figure 2.2-33).In this area the location of vegetation communities clearlydefined the direction of the exposure of the slopes. The plantspecies listed in Tables 2.2-84 and 2.2-85 were found mainly onthe northfacing slopes, while the southwest slopes were almostbare. Radiation was intense, especially on the southwest-facingslopes, causing high rates of soil moisture evaporation and planttranspiration. Because of these factors the environment wasquite xeric. Where vegetation existed, however, there was asignificant increase in litter from spring to fall (see Tables2.2-84 and 2.2-85). In the spring about 1% of the plot areaswere covered with litter, but in the fall the amount of detritushad increased to 23%. This condition was the result of theturnover of early flowering annuals. Due to the extremeconditions of these spoils, the formation of "top soil" is quiteslow.Bushy euthamia, three-awned grass, asters, and white sweet cloverwere the dominant species. The legume white sweet clover wasplanted during reclamation. Alfalfa, which occurred in the datafrom the 1972 through 1973 monitoring survey, was absent from the2.2-39 Braidwood ER-OLSdata for this area. The side slope areas where alfalfa usuallyoccurred were not sampled.Succession of this strip-mined area was 10 years more advancedthan the succession of Area 2. The number of plant species wasapproximately twice that found in Area 2 (over 20 species in Area6 compared with only about 10 species in Area 2). In general,however, poor soil conditions and severe topographical featuresmade the establishment .of vegetation difficult.2.2.2.8.4.3 Areas Strip Mined in the 1940'sThe areas strip mined in the 1940's were located in the easternportion of the study area. Study Areas 3 and C represented tworidge areas of this age that will be exposed after cooling pondformation.In study Area 3, the spoils were severely eroded and weathered.Most slopes in this area were between 150 and 35O. Along some ofthe ridges, the soil was rocky. These bare areas supportedlittle or no vegetation. Cottonwood was the dominant treespecies, reaching heights of 20 to 25 feet. These trees werescattered throughout, occurring predominantly in drainage ways.On the ridge tops, vegetation was mainly herbaceous between areasof bare, rocky soil. Russian thistle and white sweet clover wereabundant and widespread, occurring in all of the five plotssampled during the spring survey (see Tables 2.2-86 and 2.2-87).Three-awned grass and muhly grass (Muhlenbergia glabriflora) werethe dominant grasses. Species of aster, milkweed, goat's-beard(Tragopoqon dubius), thistle, and other wind-dispersed forbs alsooccurred there.Study Area C, south of Study Area 3, was centrally located in the1940's mined area and had a topography similar to that of Area 3.However, the area was less populated by cottonwoods than Area 3and was dominated by shrubby species including smooth sumac andwillows. Herbaceous vegetaticn was primarily white sweet clover,horsetail, milkweed (Asclepias verticillata), goldenrod, andthree-awned grass. The first three herbaceous species werewidely distributed, occurring in all five of the plots sampled(see Tables 2.2-88 and 2.2-89). Minor discrepancies in thespring and fall data for Area C with respect to species found andpercentages of cover, litter, and bare areas may be because someplot markers were vandalized after the spring survey wascompleted.In Study Area 3, the percentage of bare area averaged 55% forspring and 40% for fall. The percentage of area covered bylitter was 19% for spring and 25% for fall. These differences incover can be attributed to normal seasonal variations. For StudyArea C, however, the great differences between the seasonalchanges in cover and litter percentages (see Tables 2.2-88 and2.2-89) represented degrees. of variation found on the strip-minedspoil ridges..2.2-40 Braidwood ER-OLS2.2.2.8.5 Marsh-Pond AreasFollowing the cessation of mining in each of the different-agedmining areas (from recent to 30 years old), runoff from thesurrounding spoils and water from disturbed aquifers accumulated'in deep depressions and formed the ponds of the Braidwood site.Generally, the most striking features of natural aquaticvegetation distribution may be found in the division of thecommunity into different life zones. The submerged community indeep waters is typically followed by floating-leaved aquaticsnearer the shore. These are followed by emergent reed-swampcommunities, which occupy the littoral zone of water depthsranging from 3 feet to wet soil on the pond banks (Reid 1961).Although this is the usual sequence of vegetational zonation inaquatic communities, one or more of the life forms, such as thefloating-leaved aquatics, may be absent because of habitatconditions. This was the case at the Braidwood site. In thefollowing subsections the different-aged ponds found in the minedareas will be described in terms of the existent communities andthe associated life forms.Plant development within and around the ponds generallycorrelated with the age of the ponds. Five different-aged pondswere selected for study, each representing a successionary stagewithin the strip-mined ponds.The line transect method of vegetation sampling was conductedfrom the slopes into the open water. The vegetation on theslopes down to the water and from the waterline to open waterwere analyzed separately as two different communities withrecognition of only a small transition zone. The data obtainedfrom the marsh-pond areas may be used to predict bioticdevelopment along the margins and within the cooling pond.Because of unusually heavy rains during the spring, aquaticplants in Study Areas 2, 3, and 6 were under several feet ofwater until late summer. Quantitative data for these areas weretherefore collected during the fall survey.2.2.2.8.5.1 Areas Recently Strip MinedIn the areas recently strip mined, the lack of vegetation was theresult of a lack of suitable habitat. The spoils rose abruptlyout of the pond without any bank area and dropped off quickly atthe waterline. In some extremely localized areas, however,siltation and general erosion of the high wall provided thegentle slopes with a suitable substrate of silt and sand forhydrophytic colonizers. Only areas that were cove-like hadvegetation (see Figure 2.2-34). In these shallows, small spoilbanks encircled portions of the marsh-pond, protecting the areafrom wind and wave disturbance.2.2-41 Braidwood ER7OLSFrom the waterline to the open water of the coves in Area 2, thecommon cattail was quite abundant and occurred at all pointssampled (see Table 2.2-90). This species, termed an emergenthydrophyte, is able to withstand seasonal changes in water levelsresulting from spring-summer rains and fall-winter dry spells.This monocot is rhizomatus and is able to reproduce by vegetativemeans. The woody rhizome (a modified stem from which shoots mayarise) of the cattail may branch profusely and spread over largeareas forming dense stands.The data collected during the fall survey indicated that only thecommon rush occurred in standing water of the Braidwood site.The water level at other times, however, was higher than the falldata indicated, as evidenced the numbers of hydrophytesencountered on the bank of this pond (see Table 2.2-91).Cattails, spike rush (Eleocharis obtusa), bulrush, the commonrush, and two species of horsetails comprised the majority ofspecies occupying the marginal zone that occurred from waterdepths of about I meter to wet soils on the bank.Sandbar willow, black willow, and cottonwood were earlycolonizers on this pond bank, but their numbers were notsignificant. Farther from the pond the vegetation became verysparse with 45% of the area bare or covered with litter.2.2.2.8.5.2 Areas Strip Mined in the 1960'sAreas strip mined approximately 12 to 15 years ago are centrallylocated within the site boundary and run along a northeast axis.Study Area 6, shown in Figure 2.2-35, was located in the southernportion of these mined areas. The long and narrow lake studiedwas typical of the lakes found in this area. The smaller pond,north of Study Lake 6, was intermittently connected with thelarger lake during periods of high rainfall.The bank areas were sparsely populated with species of seededwhite sweet clover, brome grass, and naturally occurring speciesof aster and ragweed (see Table 2.2-92). white sweet clover wasthe most abundant species, occurring on 17% of the total pointssampled. However, 72% of the bank area sampled was bare soil orlittered.From the bank area to open water, the most frequently encounteredspecies were pondweeds, namely, the small pondweed (Potamoqetonpusillus) and the Illinois pondweed (P. illinoensis) (see Table2.2-93). The small pondweed was the most abundant species andoccurred in three of the four transects and at 25% of the totalnumber of points sampled. while the small pondweed is asubmerged aquatic, the Illinois pondweed has both floating andsubmerged leaves. These species occur in quiet waters that havea substrate of silt and clay on the pond bottom to which therhizomes and adventitious roots attach (Meunscher 1944). wildcelery (Vallisneria americana) and musk grass (Chara sp.) (musk2.2-42 Braidwood ER-OLSgrass was not recorded on transects, but was noted in generalobservations) were both submerged aquatics in Study Lake 6. Bothprefer sluggish waters rich in cations of magnesium and calciumor, in other words, "hard water" (McAtee 1939). The presence ofthese aquatics indicated the hardness of the waters, illustratingthe environment-community interaction.In summary, a community of floating and submerged aquatics haddeveloped in Area 6 only in the small ponds and the coves oflarger lakes. The establishment of the sandbar willow in theshallow waters of the bank areas indicated that this willow wasan early colonizer of the area. On the banks, no emergentaquatic community had established itself; the bank areas wereprimarily composed of planted and invading weed species.2.2.2.8.5.3 Areas Strip Mined in the 1940'sAreas strip mined in the early 1940's were located in the easternportion of the site. Study Areas 3, 9, and C were located in thenorthern sector of these mined lands (see Figure 2.2-32).Ponds in Study Area 3 (see Figure 2.2-36) were formed after themining in the late 1940's and were the least vegetated of thethree study areas. The aquatic flora was primarily a communityof floating and submerged pondweeds and the completely submergedalga, musk grass (see Table 2.2-94). Illinois pondweed was thedominant species, constituting 68% of the vegetation sampled.The vegetation was quite dense in these relatively shallow ponds,with only 25% of the pond area being open water. Along the pondbanks the aquatic and terrestrial ccmmunities were sharplydefined, with a few individuals of sandbar willow and smoothsumac forming a small transition zone. On the spoils immediatelybeyond the water's edge, white sweet clover, asters, milkweeds,and blackberry occurred (see Table 2.2-95).The ponds and lake in Study Area 9 (see Figure 2.2-36) wereformed upon completion of the mining operations conducted duringthe early 1940's. Evidence of successionary changes can be seenin the presence of a variety of emergent aquatic vegetation.These species occupy the area of pond zonation ranging from wetsoils to about 1.5 feet of water (the littoral zone). Vegetativereproduction by means of rhizomes and stolons (trailing stems)plus the presence of a suitable substrate of sand and silt haveenabled these species to rapidly populate this area of the pond.The littoral zone species were common reed, narrow-leaved cattail(Typha augustifolia), and horsetail (see Tables 2.2-96 and2.2-97). Beyond the littoral zone, floating Illinois pondweedand submerged musk grass were abundant (see Table 2.2-97). Theherbaceous vegetation of the spoil banks were species of broom-sedge (Andropogon virginicus), horsetail, milkweed, and clumps oflittle bluestem grass (see Tables 2.2-98 and 2.2-99). Theboundaries of the terrestrial and aquatic communities were not assharply defined in these older strip-mined ponds, and theformation of a transition zone was apparent. Black locust, silky2.2-43 Bra idwood ER-OLSdogwood (Cornus amomum), quaking aspen, sandbar willow, peach-leaved willow, and smooth sumac were the hydrophilous (water-loving) tree species that had invaded the area causingstabilization of the pond banks (see Tables 2.2-98 and 2.2-99).Study Area C, located south of Study Area 9, was older than Area9 by only a few years (see Figure 2.2-37). The lake ischaracteristically long and narrow and was similar to Area 9 invegetational composition. However, the trend towards greaterspecies diversity with age was evident in this study lake (seeTables 2.2-100 and 2.2-101). Aquatic species not previouslyidentified on the site were predominantly found in this area.Examples were the submerged sago pondweed (Potamoqetonpectinatus) , the submerged water-milf oil (Myriophyllum sp.) ofthe deeper waters, and the emergent water-plantain (Alisma sp.)and umbrella sedge (Cyperus flavescens) of the littoral zone (seeTables 2.2-100 through 2.2-102). The marsh-pond banks weredominated by cattails, common reed, and sedges during the fallsurvey (see Table 2.2-102), which was attributed to the lowerwater level during the fall season. In the spring when thewaterline was high, cattails and horsetails occurred in thewater, and the most abundant herbaceous species beyond the waterwas the seeded sweet clover (see Table 2.2-103).In general, the older the strip-mined pond or lake the greaterthe community interaction of the terrestrial and aquatic floraand the less well-defined the delineation between the two.2.2.2.8.6 Primary Productivity of the Strip-Mine PondsProductivity studies were conducted in the different study lakesusing the light- and dark-bottle method. The data collected werea measurement of the rate of oxygen production by the aquaticflora, including the amount of oxygen used for respiration.These figures are a measurement of gross photosynthesis andindicate the productivity of the ponds (Odum 1971). These datacompare with the findings several studies described in literature(Hyford and Phinneg 1968). Productivity for most temporateshallow lakes is in excess of 0.5 gram of oxygen per square meterfor each day (g 02 /m2 per day). The dissolved oxygen range forthe present study ranged from 0.25 to 0.80 g 02/m2 per day (seeTable 2.2-104).Although the Braidwood study data only represent a small numberof samples in each of the ponds representing the differing agegroups, definite tendencies were revealed. The apparent trendwas that productivity was increasing with time. This indicatedthat stabilization was taking place within the ponds; however,the range of productivity rates for the Braidwood site pondsplaced them in a category with unproductive deep oceans and deeplakes (Goldman and Wetzel 1963). At the present rate it wouldtake approximately another 90 years to reach an averagetemperate, shallow lake productivity level of 3.0 to 4.5 g 02/m2per day (Goldman and Wetzel 1963).2.2-44 Braidwood ER-OLS2.2.2.8.7 Successionary Trends -Seed DispersalThe plant succession of the spoil ridges and cooling pond will bedirectly affected by the cooling pond design and the means bywhich the design is implemented. The average expected depth ofthe cooling pond is approximately 10 feet. This will requiregrading of the undulating spoil ridges, thus exposing newoverburden and increasing oxidation and leaching of salts and/orthe formation of acids. This may have little affect on waterquality of the pond once it is filled. Aquatic plant speciestolerant of dissolved salts and low pH values may populate thepond environment. The pond water is predicted to be high intotal dissolved solids (approximately 1000 ppm) and have anaverage pH of 8.0. Essential growth nutrients, nitrogenphosphorus, and potassium, are not expected to be present inlarge amounts based on the water quality of the Kankakee River,the source of the cooling pond water (see Subsection 2.7.2.7.5 ofthe ER-CPS).It is expected that the median temperature will range from 630 to1020 F at the station discharge. This may affect physiologicalresponses such as the flowering, fruiting, and growth of theaquatic macrophytes. The aquatics of tropical origin, such aswild celery, may thrive in the warmer water. The followingdiscussion of the probable biotic development of the BraidwoodStation cooling pond and islands was based on these assumptionsof the environmental aspects of the cooling pond design.2.2.2.8.7.1 Terrestrial VegetationHarsh environmental factors resulting from the Braidwood strip-mined habitat have seriously affected the rate of seraldevelopment in the area. Soils provide limited organic matterand nutrients necessary for plant growth. Many of the colonizingspecies are typical of disturbed sites, including fleabane,frostweed (Aster pilosus), goat's-beard, wild lettuce, dandelion,three-awned grass, Russian thistle, ragweed, and goldenrod (seeTable 2.2-105). These species are adapted to extreme conditionsand usually occur from 1 to 5 years after a disturbance. By thethirtieth year, shrubs and some trees usually have come into anarea.The sequence of vegetation starting with bare rocks and no soil,termed primary succession, is much slower than secondarysuccession, which usually begins with soil of some type. Becauseof the lack of "soil", at least of organic matter and nutrientson most of the spoils, the succession on some of these ridgesmight be better termed primary succession. However, wheretopsoil had mixed with the spoil and a seed source remained,secondary succession was taking place.The spoil ridge tops presented harsh growing conditions not onlybecause of low nutrient levels, but also because of low moisturelevels. The radiation load was high, especially on high2.2-45 Braidwood ER-OLSsouthwest-facing slopes, causing high rates of evaporation andplant transpiration. There was little protection from dryingwinds. The substrate surface was hard, preventing much moisturefrom penetrating into the ground, and surface runoff was high.These factors caused a xeric environment in these areas.The seed sources on the ridge tops were expected to be quite lowin some areas. The spoil turned up frow below the surface hadfew viable seeds, so the presence of species and the density werelimited by the seed source as well as by extreme conditions. Insites where the soil was disturbed but not turned completelyunder, the viable seed pool was higher. Many of the speciesfound on the ridge tops (aster, goldenrod, fleabane, goat's-beard, wild lettuce, and milkweeds) have small, wind-dispersedseeds. The species most important in the permanent plots wereeither planted or wind-dispersed (see Table 2.2-106). The rateof succession on these ridges was further impared by the slowrate of seed dispersal of the species capable of germinating andgrowing successfully. Many seeds that arrive would be expectedto be washed or blown away before they could germinate and becomeestablished. Erosion removed many of the seeds and nutrients andmuch of the organic matter that were contributed by the plantsthat were able to colonize. Changes in community composition andsize occurred very slowly from year to year.When the cooling pond is filled, the environment of the ridgetops will be moderated. Soil moisture will increase since thedistance from a water table will have greatly decreased.Capillary movement of water from the banks will also increasemoisture levels. Since the humidity of the wind will increase,the environment will become mesic. Problems of erosion will notbe solved, however, so the amount of nutrient and organic matterin the soil will remain at a low level. Since floating seeds aswell as windborne seeds will have a chance to colonize the spoiltops, the seed pool of these areas may increase.2.2.2.8.7.2 Aquatic VegetationSuccession observed in the strip-mine ponds of the Braidwood sitegenerally followed the trend of increasing biological complexitywith time.In the Area 2 study lake, which was approximately 7 years old andin an area most recently strip mined, the aquatic vegetation wasconfined to banks that had silted along the high wall to formgentle slopes and soft muddy bottoms. Out from these areas, thewater became very deep, and no floating or submerged aquaticsoccurred there. Overall, Area 2 was very barren of aquaticvegetation. Where the habitats were favorable, however, emergenthydrophytes such as cattails, horsetails, spike rush, and bulrushhad taken hold. This indicates the possibility of revegetationof this type occurring if the habitat conditions of the coolingpond include shallow bank areas and gradual slopes. Many of2.2-46 Braidwood ER-OLSthese bank species were rhizomatus that had the potential tocolonize suitable areas quickly.In the ponds of Area 6, formed 12.to 15 years ago, a floating andsubmerged aquatic community of pondweeds and algae (musk grass)had developed. No significant populations of emergents such ascattails were encountered. The absence of these species could bedue to the limitations of seed dispersal, the lack of suitablehabitat (deep water), or the amount of competition for light,nutrients, and other requirements between the floating aquaticsand any invading emergent aquatics.Both of these marsh-ponds (Areas 2 and 6) had developed onlyportions of the typical life zone succession, which indicatedthat environmental factors had affected biotic development.Rapid successional changes can be noted in marsh-pond Areas 3, 9,and C. Of the areas mined in the 1940's, Area 3, the youngest ofthe three areas, was not as developed as Areas 9 and C. Theformation of a littoral or transiticn zone of common reed,cattails, and horsetails was evident in Study Area 9, which wasmined a few years earlier than Area 3.Aquatic species diversity was greatest in Area C, the oldeststrip-mined area. Water-milfoil, wild celery, water-plantain,umbrella sedge, common reed, and cattail occurred there. Acomparison of the three areas indicates that succession proceededvery slowly at the beginning and then rapidly after aconsiderable amount of time (about 30 years).The species present in these strip-mine ponds had been seededfrom surrounding areas. Succession was slow because of thedegree of disturbance caused by strip mining. The resultingponds were completely new habitats formed by the mining. Thedepth of the ponds and steepness of the banks had also slowedsuccession in these areas. The dominant species (see Table2.2-107) of the study ponds were dispersed mainly by wind andwater. During periods of high rainfall, many of the pondsoverflowed into each other, enabling water dispersed species tospread. wind-dispersed plants such as cattails, willows, andhorsetails may have had spores or seeds that landed on the spoilridges. Because of the lack of vegetational cover, however, therunoff may have carried the seeds into the depressions of thepond areas.The construction of the pond and grading of the spoil ridges willcover the current marsh-pond vegetation. The vegetation expectedto reseed the cooling pond, however, will be similar to thespecies encountered in the preconstruction sampling. Sandbarwillow was found in all five marsh-pond study areas. It is avery early successional willow that occurs in low-nutrient,unstable areas and is expected to occur in the cooling pond.Other pioneer species are generally those that may reproducevegetatively such as cattails, horsetails, and rushes2.2-47 Braidwood ER-OLS(Scaulthorpe 1967, pp. 356-57). The rhizomes of emergentscompletely buried by silt or other deposits may remain dormantuntil excavated by the scouring action of currents, floods, orhuman activities (Scaulthorpe 1967, pp. 456-83).Relatively high temperatures may allow more of the aquatics oftropical origins, such as wild celery, to grow and thrive in thecooling waters. Concentrations of essential nutrients areexpected to be low, however, thereby slowing biotic development.It is generally true that in deep lakes, phytoplanktonic algaedominate the aquatic flora, and in shallow lakes extensive standsof vascular plants are dominant (Boyd 1970).Pondweeds may be expected to reseed the cooling pond. It hasbeen documented that ducks carry fragments of these hydrophytesshort distances to other pond areas. Waterfowl account for mostof the short distance dispersal of free floating aquatics(Scaulthorpe 1967, pp. 456-83). Duckweed species are most likelyto be dispersed by this method.In summary, revegetation of the cooling pond will proceed at avery slow rate, and the species encountered in the sampling thatare adaptable to high temperature situations are expected torevegetate the cooling pond waters and spoil banks.2.2.2.9 Results of the 1972 through 1973 BaselineSurvey: AnimalsThe wildlife inhabiting the Braidwood site is typical of northcentral Illinois. The diversity of species was affected by landuse, with the most noticeable effects the result of strip-miningoperations that began in the early 1940's and still continuetoday. Strip mining caused a change in terrestrial habitats thatwas deleterious to the species requiring a variety of vegetationtypes, but the mining operation also created a number of pondsproviding an aquatic habitat not previously present in theBraidwood area. These aquatic niches have been invaded by avariety of species requiring this type of habitat. Terrestrialstudies during the fall, winter, spring, and summer from 1972through 1973 assessed the animal species present on the site.This subsection presents significant data collected in the 1973summer survey and summarizes data collected during all fourseasons. The trends of seasonal wildlife uses on mined andnonmined areas are identified, and diversity and habitatrelationships are discussed. All faunal species identifiedduring the 1972 through 1973 sampling period are listed in Tables2.2-108 through 2.2-113.2.2.2.9.1 MammalsTwenty-two mammals were located on the Braidwood site at variousseasons of the year during the terrestrial survey (see Tables2.2-108 and 2.2-109). Although the presence of these animals was2.2-48 Braidwood ER-OLS, ,based on visual observations, it is possible that many of thespecies could be found throughout the area at one time or anotherduring the year.The strip-mine spoil habitat is distinctly different from that ofthe surrounding agricultural lands, although some speciesappeared equally well adapted to both types. The agriculturallands of the site furnished well-tilled soil, extensive seeds,and edge areas with ditches, trees, and shrubs. The mammals welladapted to this habitat are burrowing forms or those that nest intall vegetation. There were relatively few trees of sufficientsize in the area to furnish habitat for most tree dwellingspecies. The agricultural land habitat for wildlife is extensivein Illinois, but the edge areas of the site were superior tothose occurring generally because of the overgrown drainageditches, woodlands, and fallow fields that were around the strip-mined areas.The strip-mine spoil furnished habitat to the forms requiringaccess to streams, lakes, or marshes. These included fur-bearerssuch as muskrat, beaver, and mink (Mustela vison , which weretherefore primarily confined to the strip-mined lands of thesite. As forest and shrub cover improve on the spoil banks, thespecies preferring woodlands, such as the various squirrels, willbecome more frequent.The white-tailed deer was the only big game animal and largemammal found on the site. Deer inhabit the wooded areas and usethe cultivated fields. The requirements of the deer for browseand a variety of other vegetation limit them primarily to theselocations. Deer may be observed throughout the strip-mined areaas they travel between areas of wooded cover. Deer use of theland strip-mined in the 1940's indicated that this land hadreturned to the status of good wildlife habitat. The majorlimiting factors of the deer population were the presence ofhuman population areas and the disturbance of wooded areasprimarily by strip mining. The flooding of the site will furtherlimit the area that may be marginal deer habitat. The morerecently stripped areas, however, must be considered less thanmarginal deer habitat.2.2.2.9.2 BirdsThe avifaunal species of the site were documented by visualobservations and bird calls during the four seasons (see Tables2.2-110 and 2.2-111). The 91 species identified included manymigratory species as well as resident species. Nineteen specieswere added to the list of species found during the summerterrestrial survey.The list of birds observed on the site represents a cross sectionof the spectrum of species that may occur near the town ofBraidwood. The observations were carried out in an area aroundthe sampling transects that were representative of the habitat2.2-49 Braidwood ER-OLStypes on the site. The factors influencing the observationmethod included the length of the observation periods, the timeof day a specific transect was observed, and the effects ofweather on bird movements.The calculation of bird diversity was based on the number ofspecies observed in each habitat type sampled (see Table2.2-111). The results indicated that for all four seasons theunmined woodlands had the greatest diversity (48 species). Onthe remaining unmined sites, the marsh areas were highest (30species), followed by cultivated fields (20 species), a#nd fallowfields, which had the least diversity (6 species). The morerecently mined areas showed the least diversity, with recentlystrip-mined areas having 6 species and areas strip mined in the1960's having 9 species. The areas mined in the 1950's and1940's had 28 species each for all four seasons. As thediversity of vegetational cover increases over time .on thestripped areas, the diversity of avifauna will aso increase.The increase in aquatic habitat due to strip-mine pond formatiopresulted in an increase in the presence of aquatic species. Themallard was the most common waterfowl species on the-site. Otherwaterfowl, observed only during the summer, were the black duckand the wood duck.. Several species of shore birds, includingsandpipers, were present near the ponds.The number of species seen was affected by the migration routesof the individual species. Migratory species usually occurredduring the spring and fall observations. Warblers were observedprimarily in the spring. Other migratory species such as therobin (Turdus migratorius) were present during the spring,summer, and fall depending on the Vxtent of their breeding range.Birds known to be year-long residents of the Braidwood areaincluded the bobwhite, ring-necked pheasant, mourning dov.e,horned lark (Eremophila alpestris), blue jay (Cyanocittacristata), common crow (Corvus brachyrhynchosl, field sparrow(Spizella pusilla), and song sparrow (Melospiza melodia). T.hesebirds were observed in various habitat types throughout the yeardepending on the availability of food.About 55% of the bird fauna in the areas strip mined in the1950's consisted of species characteristic of open or edgehabitats. This dominance may .be expected since most of thevegetational cover was brome grass. Woodland and edge speciespredominated (57%) in the older stripped areas of the 1940-'s.The sparseness of the bird populations in the areas stripped inthe 1960's .and the areas recently stripped is character-istic o.fopen and edge habitats.Two raptors., the marsh hawk (Circus cyaneus) .and the sparrow hawk(Falco sparverius), were added to the" species list during the1973 summer .survey. The marsh hawk is a harrier that feeds2. 2-:50 Braidwood ER-OLSprimarily on rodents. The sparrow hawk is the smallest falconand feeds mainly on insects.2.2.2.9.3 Reptiles and AmphibiansThe entire list of species observed throughout the four seasonsis presented in Table 2.2-112.Twelve species (six reptiles and six amphibians) were observedduring the summer monitoring period. Six of the species wereadditions to the faunal list of the area and fifteen observationswere new records for several habitats. The six new speciesobserved were the bull frog (Rana catesbeiana) , American toad,ornate box turtle (Terrapene ornata ornata), six-lined racerunner(Cnemidophorus sexlineatus sexlineatus), western fox snake (Elaphvulpina vulpina), and the five-lined skink (Eumeces fasciatus).Bull frogs were observed near the ponds in areas strip-mined inthe 1940's. The bull frog is widely distributed over the easternhalf of the country so its presence here added little toinformation about its geographic range. It is the largest frogin North America and feeds on a variety of animal food rangingfrom insects to small vertebrates. Based on the summer survey,the frog population in the 1940's mined area was ranked in thefollowing decreasing order of abundance: cricket frogs (Acriscrepitans crepitans), leopard frogs (Rana pipiens), bull frogs,and green frogs (Rana clamitans melanota). The American toad wasalso observed on the areas strip mined in the 1940's. Thisspecies would be expected to occur throughout the Braidwood areawherever food supplies of insects and invertebrates are present.The six-lined racerunner was observed on areas strip mined in the1940's, and the ornate box turtle was seen near the marshlands.The five-lined skink was observed in the woodlands near thestation site and on an area mined in the 1940's. The skink wasalso seen on a recently strip-mined area. The presence of askink there may indicate that insects were available as a foodsupply.The six-lined racerunners and the ornate box turtles occur inisolated relict colonies in central and northern Illinois sandareas and in prairie areas of central and southern Illinois, butthey are absent from the black-soil muck prairies and forestedareas of the state. Six-lined racerunners also show a spottydistribution in the state, being largely associated with sandareas along the major rivers. The major portion of the range ofboth species is west of the Mississippi River, although the racerunner also occurs throughout the southern United States all theway to the east coast. The distribution of these species inIllinois is of historical interest because the current scatteredpopulations are remnants of a formerly widespread distribution ofthese species in the Prairie Peninsula.2.2-51 Bra idwood ER-OLSDuring the Xerothermic period, an extension of a western prairieexisted through northern Illinois. A few isolated areas stillsupport these western forms of plants and animals today. Severalother rarer Xerothermic relicts could eventually be found in thearea (such as the Illinois mud turtle (Kinesternon flavoscensspooneri), Illinois chorus frog (Psaudacris strecheriillinoisansis), and the western hognose snake (Heterodonnasicus).A fox snake (Elaphe vulpina vulpina) was observed on a highwaynear a cultivated cornfield of the site. It is a commonconstrictor of northern Illinois. It too has some westernaffinities although not as pronounced as those of the previouslymentioned species. The range of the fox snake is largely in thenorth central part of the United States. It seems to do well inthe heavily cultivated muck prairies of north central Illinoiswhere many other species have been exterminated.2.2.2.9.4 Insects and Plant PestsInsects are an important component of food chains. Theyconstitute a substantial part of the diets of birds (especiallyduring the nesting season), mammals such as skunks and bats, andmost reptiles and amphibians. In recently stripped areas,grasshoppers were noticeably abundant on the almost barrenspoils. In other areas, the diversity was much greater.Significant populations of mosquitoes occurred in the marshyareas, the woods, and the older strip-mine ponds of the site.All the identified species are listed in Table 2.2-113.Although they were not found on the sampling locations, certainconspicuous pests or parasites of vegetation are worth mentioningbecause of their effects on site ecology. Certain areas at theBraidwood tract are forested, so pests of forest trees are ofinterest. The tent caterpillar (Malacosoma americanum) and otherinsects, for instance, are capable of defoliating forest trees,and certain fungi cause tree diseases such as the Dutch elmdisease. During the site surveys, extensive defoliation of sweetclover in stripped areas was noted. The fall web-worm(Hyphantria cunea) and Dutch elm bark beetle (Scolytusmultistriatus and Hylurgopinus rufipes) were also causing obviousdamage. No other serious infestations of insects were discoveredat the site.2.2.2..9.5 Important SpeciesImportant species that are commercially or recreationallyvaluable include small game, deer, waterfowl, and furbearingmammals (see Subsection 2.7.1.7.5 of the ER-CPS).2.2-52 Bra idwood ER-OLS2.2.2.10 Results of the 1974 through 1975 BaselineSurvey: AnimalsThe animal studies of the 1974 through 1975 program were centeredon the marsh-pond fauna and the small mammal population analyses.General observations were also made in all areas to extend thebaseline data for site impact analysis. This subsection includesa discussion of mammals, birds, reptiles and amphibians, insects,and endangered species. Animal species were identified visuallyand by sign or track. some specimens were submitted to theIllinois State Museum for identification and skull preservation.2.2.2.10.1 Mammals2.2.2.10.1.1 Agricultural and Wooded AreasSurveys for mammals in the agricultural and wooded areas of thesite were conducted by general observation for the larger mammalsand live- or snap-trapping for the smaller mammals. The threeareas that were surveyed using the general observation techniquewere the proposed station site (wooded), the northwest corner ofthe cooling pond (wooded and agricultural), and the northeastcorner of the cooling pond (densely wooded). Both live-trappingand snap-trapping were conducted only on the station site. Thelist of mammals observed on the site from 1974 through 1975 ispresented in Table 2.2-114.In these areas, the most common species observed directly, bysign or by trapping, were the white-tailed deer, cottontailrabbit, white-footed mouse, and fox squirrel (see Table 2.2-115).Other species present were the opossum and the deer mouse. Newspecies identified on specific study areas were the masked shrew,gray fox, and thirteen-lined ground squirrel. All of thesespecies had been previously identified on the site.White-tailed deer were the only large mammals frequenting thewooded and agricultural areas. Populations were relatively lowwith few actual sightings. The presence of this species wasdetermined primarily by tracks. Although wooded areas providedthe best habitat, agricultural crops were used for food whenavailable. Hunting pressure did not appear to be great.Cottontail rabbits and fox squirrels were the most importantsmaller mammals on the unmined portion of the Braidwood site.The ranges of these two species overlapped to some extent becausethe squirrels were found on the wooded areas, and the rabbitswere found on both the wooded areas and fields. The squirrelswere more common on the most densely wooded sites.The white-footed mouse was the most common species of smallmammals captured on the wooded areas. Population estimatesranged from 2.7 per acre to 8.2 per acre (see Table 2.2-116)depending on the time of year. The low population estimates in2.2-53 Braidwood ER-OLSthe fall probably do not reflect the actual population because ofthe abundance of natural food available at that time of the year.The deer mouse was common on the agricultural borders. Trapnight indexes ranged from 0.016 in the spring to 0.033 in thewinter. Captures were zero in the summer and fall when naturalfoods and crops were available. The trap line was near soybeanfields.2.2.2.10.1.2 Strip-mine spoil and Marsh-pond Areassurveys for mammals in the strip-mined areas were conducted bygeneral observation for large mammals on three sites. One sitewas located in an area mined in the 1940's (Study Areas C, 3, 9),one was in an area mined in the 1960's (Study Area 6). and onewas in an area more recently strip-mined (Study Area 2). Smallmammal live-trapping was conducted in Study Areas 3 and 6.On the older strip-mined areas, the most common terrestrialmammals were the red fox, raccoon, woodchuck, cottontail rabbit,white-tailed deer, deer mouse, and white-footed mouse. None ofthese species occurred in great abundance. The older the areaand the more advanced the successional stages, the better thehabitat. Study Area 9 was an older area than 3 or C and thus wasin a more advanced successional stage. The woodchuck, raccoon,red fox, cottontail, and deer used this area the most heavily.-Traps set for medium sized mammals in Areas 3 and 6 wereunsuccessful.Both the deer mouse and the white-footed mouse occurred in thearea mined in the 1940's, indicating that it was a transitionarea between the more recently mined area and the unmined land.Populations of deer mice ranged from 2.1 to 4.1 animals per .acre,and populations of white-footed mice ranged from 2.1 to 5.5animals per acre (see Table 2.2-116).The mammals using the marsh-ponds of the strip-mined areas werethose that that prefer an aquatic or a semi-aquatic habit.Although many mammals used these areas, only a few liv.ed in or onthe borders of the water.The muskrat was the most common mammal inhabiting the marsh-pondareas. This species was found primarily in the older strip-minedareas where the ponds had developed aquatic growth. The beaverwas found throughout the older strip-mined areas. Beaver housesand cuttings were in evidence, particularly in the 1940's strip-mined areas.A new species identified on the site was the otter. Evidence ofthe otter was observed in Study Area C. This species dens inbanks along streams or ponds. The otter may 'travel several miles*over land to reach anptber aquatic site.2.2-54 Braidwood ER-OLS2.2.2.10.1.3 Small-Mammal Population AnalysisTrapping was conducted in Study Areas 3, 6, and A. Thepopulation estimates for the three areas for each season arepresented in Table 2.2-116. The white-footed mouse and the deermouse were the predominantly captured species, so discussion hereis almost entirely limited to these two species. Populationestimates for the more recently strip-mined area, Area 6, rangedfrom 13.2 to 38.2 animals per acre and consisted entirely of deermice. This high population of deer mice was due to severalfactors related to the nature of this species (Doutt et al. 1973;Burt and Grossenheider 1964; Booth 1971; Murie 1954; Verts 1959).The deer mouse is more adaptable than many small mammal speciesand readily invades the strip-mined areas with sparse vegetation.With little competition, the species flourished, with.fluctuations in their populations. The subspecies of Peromyscusmaniculatuse (deer mouse) were difficult to recognize withoutskull and tooth examination (all animals were caught live andreleased), but the deer mouse caught on the strip-mined areas isprobably a subspecies that prefers almost barren land such as themore recently strip-mined areas. There were numerous juvenilescaught in this area in the spring and summer, reflecting the highproductivity potential of this species. Although the male wasusually more aggressive and more readily captured, the almostequal number of females caught indicates this species'susceptibility to capture in this barren habitat. Many areas onthe trapping grid were bare, separated only by patches of lowvegetation. The animals caught here appeared to be less vigorousand smaller than those captured in better habitat. The onlyother animal captured in Area 6 was a prairie vole.In an area mined in the 1940's, Area 3, the more advancedsuccessional stage was reflected in the small mammals present.Although no captures were made during winter and spring, thesummer and fall surveys revealed the presence of populations ofboth deer mice and white-footed mice. The presence of white-footed mice indicated that this area provided a better habitatthan Area 6. The white-footed mouse prefers terrestrial habitatswhere overhead cover is present (Doutt et al. 1973). Thepopulations of deer mice ranged from 2.1 to 4.1 animals per acre(see Table 2.2-116), and population estimates for the white-footed mice ranged from 2.1 to 5.5 animals per acre. The deermice captured were more vigorous (heavier) than those captured inthe more recently strip-mined area. The population of deer micewas also lower here, which may be the result of increasedcompetition from other species. A few prairie voles were alsocaptured here.In Area A on the station site, an area undisturbed by mining, thepresence of Qooded areas was reflected by the white-footed mousepopulations ranging from 2.7 to 8.2 animals per acre with few orno deer mice present (see Figure 2.2-38). Deer mice werecaptured, however, in a snap-trap transect located along the open2.2-55 Braidwood ER-OLSedge of a field in Area A. Trap night indexes on the snap-traptransect of 0.016 to 0.033 were lower than on similar areastrapped in 1973. The masked shrew was captured in the live-trapgrid in Area A, indicating a more diverse and moist habitat thanin the more recently strip-mined areas.During the four-season survey, no animals were found to havemigrated between the three areas live-trapped, which may bebecause: (a) the distance between the sites was too great, (b)the natural barriers between the sites hindered migration, (c)the habitat stability discouraged migration, or (d) the migrationwas too slow to detect in 1 year..2.2.2.10.2 BirdsMany areas of the Braidwood site provided excellent habitat foravifaunal species as shown by each of the nine monthly surveysconducted from March through October 1974 and in January 1975.All surveys were directed toward locating the greatest populationdensities and species diversification within the site borders.Eight major study areas were surveyed critically, and general-observations were made on other oreas. The non-marsh-pond siteswere surveyed during the four .seasons. A list of every avifaunalspecies observed during all surveys is presented in Table2.2-117. Species identified during the 1974 through 1975 survey,but not observed during the 1972 through 1973 survey, appear inTable 2.2-118. A seasonal list of .observations is given bytransects in Tables 2.2-119 through 2.2-126.Bird observations throughout the site a~rea and surrounding areas-were conducted seasonal~ly along a transect in each study area.Marsh-pond studies were conductedmnonthly during the summer*period. Resident and migrant species were identified by call,song, and visual observation.It was found that a home range preference exists for manyspecies. The greatest population density and speciesdiversification was found to occur along the edges of.agricultural land, in imMature hardwood areas, and in brushyareas stripped in the 19140's. The second preference was the openfield and aqueous habitats in .stripped areas of the 1940's. The-fewest individuals were observed in the recently stripped lands.Most avifaunal populations .showed a gradual increase correlatedwith the aging of these disturbed areas.2.2.2.10.2.1 Raptorial BirdsAmong the raptorial birds, the most commonly observed speciesinc-luded'the red-shouldered hawk (Buteo lineatus) and the red-tailed hawk (B. Jamaicensis). .Both species are proficient ,incatching thermal updrafts and soaring in search of prey.*Individuals of both species were obse-rved in flight over many*vegetation ,types. Both hawks nest in moist woodlands and feed in.2.2-56 Braidwood ER-OLSforest and edge areas. Small rodents, insects, songbirds, andamphibians constitute most of their prey (Robbins et al. 1966).The sharp-shinned hawk (Acciviter striatus) and Cooper's hawk (A.cooperii are swift-flying birds that hunt in open woodlands andwood margins. In many areas, the sharp-shinned hawk may be morecommonly observed than the Cooper's hawk (Robbins et al. 1966).Both kill and eat a variety of small songbirds up to the size ofpigeons and occasionally take mice and insects. Observations ofsharp-shinned hawk and Cooper's hawk were made on Transects 2 and3, respectively (see Tables 2.2-122 and 2.2-123).Throughout the stripped areas and agricultural fields, sparrowhawks (Falco sparverius), the smallest and most common of thefalcons, were observed hovering over the vegetation. They oftenperch on telephone poles and other high perches in search ofprey.The pigeon hawk (Falco columbarius), a less common falcon, wasobserved in flight over fields near Area A. These birds areswift and direct fliers, preying on small mammals and insects.The screech owl was the only owl species found on the site. Itfeeds extensively on insects and occasionally on mice, crawfish,amphibians, and small fish (Robbins et al. 1966). Severalindividuals were heard calling after dark along strip-minedTransects 3 and 9 (see Tables 2.2-123 and 2.2-126).2.2.2.10.2.2 Upland Game BirdsFour species of upland birds were found on the site. The mostpreferred habitat for these individuals appeared to be mixed oakwoods and the borders of old fields and woodlots.Bobwhite quail, a popular game bird in many areas of the UnitedStates, was observed in the early spring in open fields andbrushy habitat. They eat a diet of leaves, buds, fruits, seeds,insects, and snails and are often found in small coveys (Robbinset al. 1966).Ring-necked pheasant, a common game bird of the north centralstates, was observed in old strip mines, agricultural land, andmixed woodlots. It is one of the largest gallinaceous birds(heavy bodied terrestrial forms) found in the area and ispreferred by hunters. Pheasants roost in trees and feed on wastegrains and seeds (Robbins et al. 1966).Mourning doves were observed in flight throughout the site area.This game bird is an important migratory species and is huntedthroughout the United States. It forages in fields, orchards,and open areas, feeding primarily on waste grains and weed seeds(Robbins et al. 1966).2.2-57 Braidwood ER-OLSThe American woodcock is a common upland game bird of the eastern.and central United States. It prefers wooded swamps, alderthickets, and moist bottomlands. Earthworms constitute the majorpart of its diet. The males use grassy openings for springcourtship displays. Individuals were found abundantly in wethabitats of woodlots and stripped areas during survey work(Robbins et al. 1966).2.2.2.10.2.3 Perching Birds and Other Common Birdsof the eight major study areas surveyed, the areas used mostcommonly appeared to be Areas A, 3, and 9 (see Tables 2.2-119,2.2-123, and 2.2-126). These areas were either stripped duringthe 1940's or represent relatively undisturbed habitats. Thecommunity type in all of them was primarily a hardwood forestcomposed of suppressed and intermediate saplings. Such habitatprovides excellent cover for many birds. Wood warblers appearedto be most abundant in the tree tops, with thrushes occupying thelower vegetation zones or forest floor. Of the warblers, theyellow-rumped (Dendroica dominica), black-throated green QDvirens), and magnolia (D. magnolia) appeared most commonly. Ofthe thrushes, the wood (Hylocichla mustelin) and swainson(Catharus ustulatus) were the most common. The other speciesobserved in these areas are listed in Tables 2.2-119, 2.2-123,and 2.2-126.Aqueous areas (lakes and ponds within the land stripped in the1940's) adjacent to woodlots and brushy areas were found to bethe second most preferred habitat for avian species. Preferencefor these areas appeared to be only slightly lower than that forareas within the mixed hardwoods. The most abundant species inthese areas included the Carolina wren (Thryothorusludovicianus), yellowthroat (Geothlypis trichas), indigo bunting(Passerina cyanea), red-winged blackbird (Agelaius phoeniceus),and song sparrow.Recently stripped Areas 2 and 6 were the habitats least preferredby birds (see Tables 2.2-122 and 2.2-125). In these areas, thenumber of species was extremely low. Even during the earlymorning hours (a period when songs and calls peak) fewindividuals were heard. Here, the most common species appearedto be the horned lark (Eremophila alpestris) and the killdeer(Charadrius vociferus).2.2.2.10.2.4 Waterfowl2.2.2.10.2.4.1 Waterfowl of IllinoisIllinois is one of the most important states in the nation formigratory water fowl. Over a million ducks and 300,000 to400,000 geese spend from several weeks to several months withinthe state. About 600,000 ducks and 250,000 Canada geese (Brantacanadensis) usually winter within the state. Over 90% of thewintering ducks are mallards and occur largely along the Illinois2.2-58 Braidwood ER-OLSRiver valley south of Peoria, along the Mississippi River southof Burlington, and in southern Illinois. About 98% of the Canadageese winter in Williamson, Union, and Alexander counties inextreme southern Illinois (Robbins et al. 1966; Bellrose 1968).The distribution of waterfowl has been studied by the IllinoisNatural History Survey biologists for 30 years. The foodhabitats of ducks and geese in Illinois and the ecology ofaquatic and marsh plants used by waterfowl have also been studiedby survey biologists (Bellrose 1968, 1973).Most of the ducks frequenting Illinois during the fall migrationoriginate from breeding grounds in southern Saskatchewan,southwestern Manitoba, and North and South Dakota. Most fallducks depart Illinois on southerly courses for major winteringgrounds in Arkansas and Louisiana (Bellrose 1968).Over 90% of the ducks frequenting Illinois in migrationconcentrate on the Illinois River and Mississippi River valleyswest of Braidwood. Most ducks arrive at the Illinois andMississippi rivers from the northwest and turn southward beforereaching eastern Illinois where the Braidwood Station is located(Bellrose 1973).Survey biologists have studied waterfowl distribution in thestate by means of periodic aerial surveys during the fall andspring migrations, and by a winter survey in early January. Theyhave banded over 125,000 ducks and thousands of geese and, on thebasis of band recoveries, have mapped migration routes throughoutIllinois. Ground observations and radar surveillance have alsobeen used to determine the routes of migration through the state(Bellrose 1973).2.2.2.10.2.4.2 Waterfowl on the Braidwood SiteA diverse waterfowl population was found to occur on theBraidwood site. The greatest evidence of the "existing"population was noted during the late winter and spring surveys(during March and May 1974). Many of the large water bodiesharbored migratory species and provided an excellent resting andfeeding habitat. Species diversity appeared to increase fromthat of the 1973 Braidwood listing because special attention wasdevoted to waterfowl observations during the current reportperiod. Flocks of geese with as many as 40 or more individualsper flock were observed on the site during the mid-March survey.Both blue (snow) (Chen caerulescens) and Canada geese wereobserved feeding on the site as well as in adjacent farmlands. Atotal of 18 waterfowl species was documented during the survey.Commonly observed species included Canada geese, mallards,American coots (Fulica americana), and wood ducks. The waterfowlfound on the site are included in the list on Table 2.2-117.2.2-59 Braidwood ER-OLSThe Canada goose, the most widely distributed of the NorthAmerican waterfowl, is a winter visitor throughout much of theUnited States. Migrating birds rest and feed in marshy habitats,or graze on young plants and waste grain in nearby fields(Robbins et al. 1966). several pairs of birds were observed inthe area of the anticipated cooling pond. During the summersurvey period, it was documented that at least one brood of sixyoung was produced in Area 6.Mallards, the most commonly observed waterfowl species in NorthAmerica and the most common waterfowl species on the Mississippiflyway (Robbins et al. 1966), were observed many times duringsurvey work. A dabbling duck, the mallard feeds primarily onaquatic vegetation. Several were seen feeding in the small pondswithin the site.Another common waterfowl resident of freshwater lakes and pondsis the American coot. They construct their nests in reeds andgather a diet of aquatic vegetation, insects, snails, tadpoles,and small fish (Robbins et al. 1966). Several coots wereobserved in Area C and on Transects 3 and 9 (see Tables 2.2-121and 2.2-126).Wood ducks, common residents of the eastern and central UnitedStates, were found abundantly on the site. They nest in treecavities near wooded river bottoms or forested stream banks.Wood ducks eat acorns, aquatic vegetation, dogwood fruits, andother plant parts gathered in the water and from woodlots(Robbins et al. 1966). Several wood ducks were seen on smallponds throughout the site.Each year large numbers of geese pass through the Braidwood area.From 75,000 to 150,000 Canada geese migrate from the HoriconNational Wildlife Refuge in Wisconsin late in November or earlyin December when. heavy snowfalls cover their food source of wastecorn in the fields. In many cases, only small numbers of geesestop enroute to southern Illinois in spite of numerous lakes intheir migration corridor (Anderson 1959). It is apparent that upto now this population of geese has found an adequate food supplyduring the fall in the Horicon Marsh area and an adequate foodsupply during the winter in southern Illinois (Bellrose 1941).Based on present behavior, it is expected that many of themigrating Canada and blue geese may stop briefly at the Braidwoodcooling pond during the fall and spring migrations. Their lengthof stay will depend on the availability of waste corn andsoybeans in the nearby fields (Bellrose 1973; Linduska 1964).2.2.2.10.2.4.3 Effect of the Cooling Pond on WaterfowlDue to recent changes in depth and temperature expectations forthe Braidwood cooling pond, it was anticipated that the waterfowluse of the Braidwood facility may be an important factor whenconsidering the environmental impact of the station. The most2.2-60 Braidwood ER-OLSrecent calculations for the cooling pond depth indicate that theaverage depth will be approximately 10 feet with a maximum depthof any significant area of about 15 feet. Many areas of thecooling pond will probably be less than 10 feet deep. This depthwould ensure adequate growth conditions necessary for thegermination and propagation of aquatic vegetation, which is thepreferred waterfowl food. It is expected that additional specieswill become established by seed dispersal resulting frommigrating waterfowl.The ecological group of plants that provide the greatest amountof food for ducks in Illinois are the moist-soil plants such asduck millet, nutgrasses, water hemp, large-seeded and noddingsmartweeds, and teal grass. These moist-soil plants develop onmud flats exposed by retreating water in shallow-basined lakes.In addition to these plants, submersed and floating aquaticplants including naid, pondweed, duckweed, tapegrass, andwatermilfoil provide additional waterfowl foods (Martin et al.1951). The warm, shallow water expected in all seasons couldensure a continual and adequate supply of aquatic growth forwaterfowl species throughout the year.In addition to aquatic vegetation, some waterfowl species feed onthe waste grains from agricultural crops. Several bushels ofcorn and soybeans per acre are left by combines used to harvestthese grains in Illinois. Mallards, black ducks, and geese usethe waste grains for food. This food source would furthersupport a waterfowl population in the site area.Heat may be another factor affecting the distribution andfrequenting of waterfowl on the Braidwood cooling pond. Thewater temperature of the pond (50% occurrence) is expected torange from 490 F in January in the inlet area to 1020 F in Julyand August in the discharge area to the cooling pond. On aseasonal basis such a gradient could increase waterfowl use ofthe cooling pond by providing open water throughout the year.A limiting factor that often controls the rate of migration inlate winter and early spring is the availability of open water.It is expected that a change in temperature from the outlet tothe inlet during March will be from 700 F at the discharge to 560F at the inlet (50% occurrence). Such temperatures will assureice-free water for the entire month of March, which is the peakmigratory month. Birds.flying north after leaving the open warmwater of the Braidwood cooling pond may encounter severe weatherconditions and be forced to return there. In this way, waterfowlwould be funneled into the Braidwood cooling pond. Edible plantparts from the previous growing season will most likely beavailable, thereby encouraging their stay. For any oneindividual the time spent on the cooling pond during thenorthward migration is expected to he from several days toseveral weeks.2.2-61 Braidwood ER-OLSThe persistence of warm temperatures in the cooling pond throughthe fall and winter may also affect waterfowl by permitting themto over-winter on the pond. Forced from northern nesting groundsin early and late fall, waterfowl often stop over on large bodiesof water for brief periods, eating, and resting and sooncontinuing on their southward route. Since it is expected thatthe cooling pond will provide these necessities, it may serve asan over-wintering site for waterfowl. Coots, teals, mallards,and wood ducks are likely to be the most prevalent of the gamespecies frequenting the cooling Fond. These species are commonon the Mississippi flyway and were the most common speciesobserved on the site.Although the exact number density of the waterfowl species thatmay use the Braidwood cooling pond is difficult to predict, someindication can be gathered by considering data from Lake Baldwin,a 2200-acre lake in southern Illinois. From fall through springit harbors 30,000 to 50,000 ducks, with mallards being the mostcommon and coots the second most common species. Other speciesfound at Lake Baldwin include the widgeon, gadwall (Anasstrepera) blue-winged teal (Anas discors , green-winged teal (A.carolinensis , pintail, shoveler, wood duck, canvasback (Aythyavalisineria), redhead (A. americana), goldeneye (Bucephalaclangula), bufflehead (B. albeola), scaup (Aythya sp.), ring-necked duck (A. collaris), and common (Mergus merganser) andhooded (Lophodytes cucullatus) mergansers. In addition, some5,000 to 10,000 blue and Canada geese over-winter at the lake(Moll 1975).2.2.2.10.3 Reptiles and AmphibiansAn in-depth survey for reptiles and amphibians was performed onmarsh-pond and spoil areas on the Braidwood site during the 1974sampling period. Special attention was given to speciesdiversity, population densities, and habitat preference forvarious cover types. Individuals were aged, sexed, weighed,measured, and marked to determine the growth rate and developmentof species currently found on the Braidwood site. These valuesalso indicated the quality and quantity of food and habitat ofthe area and provided a basis for comparing similar populationsexisting in other environs. This comparison related the stressedenvironment of the Braidwood site to the natural environment ofother areas, thereby providing a control mechanism. Suchcritical analysis of homeostasis individually and for the totalpopulation provided information necessary for predictingfecundity and population densities for postconstruction periods.These values also are deemed necessary for estimating the thermaleffects on existing and migratory species in the area of theBraidwood cooling pond.The behavioral and developmental patterns of some species werenoticeably altered in strip-mined areas. Among these alterationswere slower growth rates and delayed maturity (for the paintedturtle and six-lined racerunner [Cnemidophorus sexlineatus2.2-62 Braidwood ER-OLSsexlineatus], smaller average size of mature individuals (for thepainted turtle and American toad), reduced reproductivity (forthepainted turtle), and metamorphosis of larval amphibians atlarger than normal size (eastern tiger salamander [Ambystomatigrinum tigrinum]).Five areas were chosen for concentrated herpetofaunal studies onthe Braidwood site (see Figures 2.2-39 through 2.2-42).The characteristics of the sites studied for reptiles andamphibians at the Braidwood site are given in Table 2.2-127. Allherpetofaunal species observed on the Braidwood site during the1974 survey are listed in Table 2.2-128, and the newly-foundspecies not included in the 1973 environmental report are listedin Table 2.2-129.The 37 species (12 amphibians and 25 reptiles) observed or knownto occur on the Braidwood site are listed in Tables 2.2-128 and2.2-130 (Smith 1961). All but three (75%) of the amphibianspecies listed to occur on the site were observed during the 1974survey. On the other hand, only 12 (48%) of the reptilianspecies were observed during this period.The herpetofauna of the Braidwood site may be divided into fourecological groups as followsa. species that inhabit older strip-mined areas (turtlessp., and northern leopard frogs (Rana Pipienspipiens]);b. species distributed throughout the strip-mined lands(American toad, cricket frog, western chorus frog[Pseudaeris triseriata triseriata], and hognose snake[Heterodon platyrhinos]);c. species that have invaded areas recently strip-mined,but were absent or reduced in numbers in morerecently mined areas (the western leopard frog [Ranablairi]); andd. species whose distribution was dependent on specialconditions prevailing in localized areas on strip-mined land (six-lined racerunner, bullfrogs [Ranacatesbeiana], green frogs [Rana clamitans melanota],and the northern water snake [Natrix sipedonsipedon]).2.2.2.10.3.1 AmphibiansNine species of amphibians were observed on the study areas.Chorus frogs, cricket frogs, and American toads were the onlyspecies present on all the sites. Overall, the most abundantamphibian in the study area appeared to be the cricket frog. Itwas probably exceeded in numbers only in Area 2 where both chorus2.2-63 Braidwood ER-OLSfrogs and American toads were commonly found. Frog speciesabundance seems to correlate with the age of the area. In thearea strip-mined in the 1960's (Area 6), western leopard frogswere most common, followed by bullfrogs and green frogs. In the1940's strip-mined area, bullfrogs were the most common, followedby northern leopard frogs. In the agricultural-woodlands, themost common species was the western chorus frog.Eastern tiger salamanders range throughout most of the UnitedStates. In Illinois, the species occurs statewide in a varietyof natural and disturbed habitats. This species was mostcommonly observed in large ponds in Area 6. The largest specimencollected was an adult male (100 millimeters [mm] from snout tovent [SV]). This carnivorous salamander may eat any animal smallenough to be subdued. Adults are fossorial through much of theyear, often using animal burrows to bury themselves. Thisbehavior may partly explain their ability to inhabit the barrenhabitats of the Braidwood site.The western chorus frog, a widely distributed species, is foundin temporary ponds and ditches throughout Illinois (Smith 1961).Their occurrence was documented on all study sites, with thegreatest populations occurring in temporary ponds in Areas A and3. In general, temporary ponds in the 1940's strip-mined areascontained more calling males than other sites. Fewer than sixmales were heard calling from ponds on Area 2; however, estimatesof four or five times that number were heard calling from pondsin Areas A and 3. Only the more recently mined areas had pondsthat did not contain adults, eggs, or larvae. Comparisons ofsize in the three study areas suggested a tendency for chorusfrogs to be somewhat larger in recently strip-mined areas.Blanchard's cricket frog (Acris crevitans blanchardil, theeastern subspecies of the widespread cricket frog, occursthroughout Illinois (Smith 1961). It was found in temporary andpermanent ponds in all the study areas. Although relatively rarein Area 2# it was the most common frog on all the other sitessurveyed. Blanchard's cricket frog preys chiefly on arthropods.The American toad is a common toad over much of the easternUnited States. This species was found nearly everywhere in thestudy areas. It was most abundant on recently stripped sites(particularly Area 6), but was common throughout the site. Itfeeds primarily on arthropods, but will eat nearly any smallanimal it can overpower. The 31 specimens collected averaged 57mm SV in length, ranging from 37.6 to 71.5 mm. These valuesappeared small compared with other studies (Smith 1961).The gray tree frogs (Hyla versicolor versicolor), found in Area3, occurs throughout the eastern United States and is foundstatewide in forested areas (Smith 1961). Its diet is largelycomposed of arthropods and insects.2.2-614 Braidwood ER-OLSBullfrogs are a highly adaptable species commonly occurringthroughout the eastern two-thirds of the United States. Themajor limiting factor for this species appears to be theavailability of permanent-water. Its diet is composed primarilyof insect prey. Bullfrogs were observed on all study sitesexcept Area 2 and appeared to be juvenile. The largestihdividuals collected measured 142 mm SV and 293 grams (male fromArea 9), and 149.1 mm SV and 482 grams (female from Area 6).These are somewhat larger than the largest individuals capturedin Ridge Lake, Coles County, Illinois (Durham and Bennett 1963);they are considerably smaller than the state record of 154 mm SV(Smith 1961).The green frog, a common frog of the eastern United States,ranges over the northern quarter of Illinois (Smith 1961). Likethe bullfrog, this species requires permanent water for itsexistence. It was most commonly observed in the 19609s and1940's mined areas. Green frogs were found less abundantly thanthe bullfrogs in areas where the two occurred together, and greenfrogs were more abundant than leopard frogs in the older areas.Fourteen males collected in the vicinity of Area 9 ranged from65.0 to 94.6 mm SV (mean = 76.1). The largest known Illinoisspecimen is 95 mm SV (Smith 1961). Its diet consists ofarthropods, mollusks, and annelids. A census based on 13collections with two recaptures estimated the number of greenfrogs to be 21 animals per acre of water in the northeast end ofstudy lake 9.The leopard frog complex, which comprises several species, iswidespread through much of the United States (Smith 1961). Twospecies of this complex occurred on the Braidwood study area.The western leopard frog occurred in recently disturbed and openareas (Areas 2 and 6), and the northern leopard frog wasrestricted to older, wooded areas with permanent water (Areas 9and C). Only around a permanent lake on Area 3 were both speciessympatric.2.2.2.10.3.2 ReptilesEleven species of reptiles were recorded on the Braidwood site.Six-lined racerunners and painted turtles appeared to be the mostcommon species.2.2.2.10.3.2.1 TurtlesFour species of aquatic turtles inhabited the Braidwood site. Inorder of abundance, they were the painted, common snapping,Blanding's, and spiny soft-shelled turtles (see Table 2.2-131).Distribution of these species on the site was largely restrictedto lakes of 30 or more years in age (1940's strip-mined areas).A single terrestrial species, the ornate box turtle (Terrapene'ornata), was observed immediately outside this strip-mined area.Ornate and eastern box turtles were found to be absent from thestrip-mined areas studied in Perry County, Illinois (Myers and2.2-65 Braidwood ER-OLSKlimstra 1963). The absence of aquatic species from recentlystripped areas may be the result of limited vegetational growth(Sexton 1958, 1959a, 1959b). Except for a few clusters ofemergents (e.g., cattails), study lakes younger than 30 years hadfew aquatic macrophytes (see Table 2.2-127). In lakes 30 yearsor more in age, however, pondweeds, cattails, and common reedswere present.Painted turtles range widely over the-eastern United States and,although distribution is spotty in the west, this is the onlyUnited States species that occurs on both coasts. Paintedturtles were the most abundant herpe to faunal species in thestudy area, contributing 89% to the total turtle populationcollected. Based on the Lincoln Index, painted turtle densitiesof 33 per acre and 42 per acre were calculated for the studylakes of Areas 3 and 9, respectively. Estimates for paintedturtle populations in other areas of the United states suggestthat these densities are low. Estimates of 239 animals per acreand 233 animals per acre were recorded in-the marsh habitats ofPennsylvania and estimates for the Michigan population rangedfrom 166 animals per acre during the dry periods to 40 per acreduring the high water periods.Since the specimens were collected chiefly by hoop traps, thedistribution may not reflect the actual populations of paintedturtles. Hoop nets catch proportionately more males than females(Ream and Ream 1966), and juveniles capable of squeezing throughthe 1-inch mesh trap netting are therefore not represented in thecollections.Painted turtles tend to be omnivorous. Reports from some studiesindicated that 64% of the stomachs taken from 56 specimenscollected in Pennsylvania contained animal food and that 61.2% ofthe total volume of food in the stomachs was animal food (Ernstand Barbour 1972). Of the six digestive tracts taken frompainted turtles on the site, only three contained filamentousalgae and grass stems. Two others contained mostly animalmaterial. The caecum of one was filled with crushed snailshells. Another contained remains of arthropods, leg bones of asmall frog, and snail shells.Turtle growth was estimated by using annuli on the pectoral scute(scale) of the plastron (Sexton 1959b). Twenty males estimatedto be in their fifth year of growth averaged 108 mm PL (length ofplastron) 'and ranged from 87 to 121 mm PL (standard deviation9.338). Considering the harsh environment, such variability maynot be unusual.Sexual maturity was also a variable. Males seemed to maturebetween 85 and 90 mm PL from the third through fifth year ofgrowth. Only one mature male was less than 4 years of age.Females mature at values of 124 mm PL and as early as 6 years ofage. It was found that male painted turtles from Coles County,Illinois, mature between 81 and 87 mm PL in 3 to 4 years of2.2-66 Braidwood ER-OLSgrowth, and females mature at approximately 130 mm PL in 4 to 6years (Moll 1973). Although the results were similar, paintedturtles from the Braidwood site required a longer time to mature,and in the case of females maturity was attained at a smallersize.Reproductivity of the population was examined in six females.Based on these data (see Table 2.2-132), the mean clutch size was6 eggs (ranging from 5 to 7), the mean number of clutches peryear was two, and the reproductive potential was 12 eggs perfemale each year. Painted turtles collected in less disturbedhabitats in Coles County, Illinois, were far more productive,laying a mean clutch size of 8.7 with two or three clutches peryear for a reproductive potential of 20.31 eggs per female eachyear (Moll 1973).To determine the re-establishment potential of this species,movements of individual painted turtles were followed throughcapture-recapture techniques and biotelemetry (see Figure2.2-43). Three females were released with radio trackingdevices: one on June 26, 1974, and two on July 15, 1974(identified as X, A, and B). The letter of each turtle and themonth of the observation period was used to designate eachturtle's position on the map. Among the radio tagged turtles, Xwas the only one that moved out of the study area in which it wastagged. This turtle moved to a smaller pond near study lake C.The shortest distance the turtle could have traveled was 1300feet, but this would have meant crossing high spoil banks. Ifthe turtle followed the most gradual path, it would have walkedapproximately 1 mile. Other than this one individual, thepainted turtles spent most of their time in confined areas ofless than an acre. Since most marking and all recapturesoccurred from June through September, the species may be muchless sedentary than these data indicate.The common snapping turtle was the second most abundant turtle inthe area, composing 7.5% of the turtles collected. Like thepainted turtle, snappers have broad habitat preferences and arefound in most permanent bodies of water throughout Illinois.They are omnivorous, eating a wide variety of plant and animalfoods. No snapper was dissected for the digestive tractanalysis, but fecal material from a female (257 mm carapacelength [CL]) revealed that its diet was composed entirely ofvegetation. Snappers tend to travel long distances overland andthrough water. It was found that one female had traveled 2.11miles in 10 days, but most travel less, averaging 0.057 mile peryear (Hammer 1969). During the observation period, only onesnapping turtle was recaptured. It had moved from the Area 3study pond to Area 9 (straight line distance of 700 feet). Thesmall sample of snapping turtles from the site area was comparedwith snapping turtles from Wisconsin and New York to helpinterpret length-weight relationships (see Table 2.2-133) (Yntema1970). Although data were insufficient to estimate the snappingturtle density on the site area, five were collected on the 3.67-2.2-67 Braidwood ER-OLSacre east end of study lake 9. One study in a Dakota marshindicated a density of only 0.5 snapping turtle per acre (Hammer1969).A prairie dweller, Blandingts turtle, was found in Illinois andwas probably widespread over the northern half of the statebefore the marshes were drained (Smith 1961). Two large malespecimens were collected in the area. Although this species isomnivorous, it seems to have a strong preference for crustaceans(Lagler 1943). The habits of this species are not well known.Its movements may be either overland or through water. Studiesindicate that four recaptured specimens in a Michigan lake, whichwere recaptured over intervals ranging from 4 days to 14 months,had moved less than 100 meters from their original capture sites(Gibbons 1968). The Braidwood study showed that a male (C)radio-tagged on August 7, 1974, had moved 670 meters south of itscapture point by September 21, 1974.Spiny soft-shelled turtles have varied habitat preferences andare found in a variety of aqueous environs throughout Illinois.Comparatively rare in the study area, only one specimen (animmature 117 mm CL) was collected. Its weight of 148 grams wasapproximately that calculated for soft-shelled turtles fromMichigan and Minnesota (Dunson 1967). These turtles are largelycarnivorous. Studies indicate that crayfish are the preferredfood, followed by aquatic insects and small vertebrates(tadpoles, fish, etc.) (Lagler 1943; Anderson 1965; Breckenridge1944).2.2.2.10.3.2.2 LizardsThe distribution of the six-lined racerunner in the study areawas discontinuous. They commonly inhabit hill and sand prairiesin Illinois (Smith 1961). Within the site boundaries, theselizards were found in Area 2 and in the vicinity of Areas 3, 9,and C (see Table 2.2-134).The six-lined racerunner is an active forager on sunny days. Itis most commonly seen dashing across open areas searching for itsinsect and spider prey. Small racerunners (mean size 34.4 mmSV), probably young of the year, were relatively abundant in lateAugust and September of 1974. Although no small specimens werecollected in June, two obvious size groups were present among theJuly collections (eight small lizards averaged 49 mm SV and twolarger ones averaged 65..6 mm SV). Two size groups were alsoevident in August, three small lizards averaged 54.97 mm SV andone large lizard was 78.8 mm SV. Assuming the smaller size groupwas made up of juveniles hatched the previous fall, the lizardspresumably grew about 20 mm SV length in a year. The four largerspecimens, which ranged from 64.0 to 78.8 mm SV, were consideredadults, but gonadal examinations did not verify this. Thepostulated growth rate of the lizards in the current study wasconsiderably slower than that for individuals studied nearLawrence, Kansas (Fitch 1958). Hatchlings (32 to 35 mm SV) in2.2-68 Braidwood ER-OLSthe Kansas population emerged in early August. By the time ofhibernation 6 weeks later, some had grown to 52 or 53 mm SV orabout the same amount that the Braidwood specimens grew in ayear. Although some individuals grew slower, most exceeded 30 mmSV of growth in a year's time. Further studies showed that somefemales mature in their first year of growth, usually at SVlengths of between 60 and 65 mm (Fitch 1958). Assuming the samesize for sexual maturity, females of the Braidwood populationwould probably mature in their second year of growth at about 22months of age. These differences between the two populationshave thus far not been determined.2.2.2.10.3.2.3 SnakesSnakes were uncommon throughout the Braidwood site. The lack ofcover was probably an important limiting factor. Common snakesincluded the eastern hognose (Heterodon platyrhinos) and yellow-bellied racer (Coluber constrictor flaviventris); both are highlyadaptable and have a varied diet.Although it occurs statewide, the eastern hognose snake seeminglyavoids soils rich in organic matter. This snake was commonlyfound throughout the Braidwood site (in four observations in 30field days). Although several authors list its food as chieflytoads and frogs (Smith 1961; Conant 1958; Oliver 1955), fecalsamples from one specimen (247 mm SV) included insect parts.Toads, salamanders, fish, snakes, lizards, insects, worms, birds,frogs, mice, and chipmunks are listed in the hognose snake's diet(Wright and Wright 1957). The eastern yellow-bellied raceroccurs statewide although records are sparse from the heavilyfarmed prairie of northern and central Illinois (Smith 1961). Itwas observed six times in 30 field days on Areas 3, 6, 9, and C.It was found that the diet of southern Illinois racers consistedof insects (30%), mammals (32.9%), amphibians (10.8%), reptiles(8.3%), birds (6.3%), and miscellaneous items (2.6%) (Klimstra1959).Bullsnakes (Pituophis melanoleucus sayi), chiefly a westernspecies, occur in the extensive sand and black prairies ofcentral and northern Illinois (Smith 1961). The populationrepresented in the Braidwood study area was isolated from themain population and was largely restricted to the Kankakee sandarea. Its food is composed of small vertebrates and eggs. Onespecimen collected on Area 3 measured 1397 mm SV and weighed 1025grams.The western fox snake (Elaphe vulpina vulpina) is commonthroughout the northern half of Illinois. It is one of the fewsnakes that does well in heavily cultivated prairies (Smith1961). One specimen was seen between Areas 3 and C.The eastern garter snake (Thamnophis sertalis semifasciata)occurs statewide and throughout most of the United States.Frogs, toads, salamanders, and earthworms are the main items of2.2-69 Braidwood ER-OLSits diet. Another study lists frogs, mice, toads, insects, fishsalamanders, young birds, earthworms, and mollusks as parts ofits diet (Pope 1947). Considering its generalized habitat andfood preferences, this species may occur within the siteboundaries in relatively high numbers; however, there was onlyone sighting of this nonsecretive snake during the 30 field days.There was similar sparcity of the garter snake in other southernIllinois strip mines (Myers and Klimstra 1963).Northern water snakes (Natrix sipedon) occur statewide andthroughout most of the eastern and central United States. Thesubspecies that occurred on the site is also found throughout thenorthern half of Illinois (Smith 1961). This species was oftenfound along stream banks foraging for frogs and fish. Watersnakes were sighted more often than garter snakes (threesightings in 30 field days).2.2.2.10.3.3 Heat Effects on the Reptiles and Amphibiansconstruction of a large heated pond over their present habitatmay have considerable impact on the herpetofauna of the Braidwoodsite. Based on the ecological data collected from publishedstudies, predictions of environmental impact may be determined.Among the reptiles, northern water snakes, painted turtles, andcommon snapping turtles are likely candidates to establishpopulations in the Braidwood cooling pond area. All are highlyadaptable species and are known to occur in heated lakes (e.g.,Lake Baldwin in Randolph County, Illinois).Of the turtle species observed on the site, the painted turtleshave the most heat tolerance. The critical thermal maximumtemperatures (CTM) for painted turtle populations from Wisconsinaveraged 41.60 C in contrast to a CTM of 39.460 C for commonsnapping turtles from Rhode Island (Hutchison and Kosh 1965).Painted turtles might use most areas of the cooling pond, whereassnapping turtles may be confined to the cooler portions. Bothspecies prefer heavily vegetated areas that offer food and cover.Such areas should be abundant in the relatively shallow, heatedcooling pond after vegetation becomes established.Painted turtles on the Braidwood site might be expected to growfaster in a heated pond, reach sexual maturity sooner, and havegreater reproductive potential than those in the strip-mine ponds(Gibbons 1970).The CTM for the water snake is unknown. Reports show that 250 Cis nearly optimum for the species, and temperatures of 36.50 C to430 C proved to be caustic (Lueth 1941). Other studies indicatethat water snakes were one of two reptiles occurring in thehottest of three study ponds at the Savannah River Atomic EnergyPlant (Parker et al. 1973).2.2-70 Braidwood ER-OLSThe most likely amphibians to establish in and around the newcooling pond will be Blanchard's cricket frog, the northernand/or western leopard frogs, and American toads. These speciesare adaptable and are known to breed in permanent water. All ofthem have been observed in Lake Baldwin (Moll 1975). Green frogsand particularly bullfrogs are other potential inhabitants. Bothrequire permanent water for breeding, but because neither hasbecome established in Lake Baldwin, their establishment in theBraidwood cooling pond questionable. Based on several studies,cricket frogs and the leopard frog complex would best toleratehigh temperatures, followed by American toads and bullfrogs andgreen frogs (Brattstrom 1963).The life history patterns of the amphibians establishingpopulations in the cooling pond may be expected to change in thefollowing manner (Gibbons and Sharitz 1974): (a) developmentalrates of larvae may increase; (b) larvae may metamorphoseearlier; and (c) normal breeding seasons may be extended. Theoverall consequences of these alterations on the populationsbiology of the affected species are unknown. Of the remainingspecies, the establishment of the soft-shelled and Blanding'sturtles is doubtful. The soft-shelled turtle does occur in largelakes, but spends considerable time partially buried in mud orsand in shallow waters (Webb 1962). High temperatures and hardbottoms in shallow areas of the cooling pond would inhibit thisbehavior. This turtle has not been seen in Lake Baldwin, butdoes occur in cool lakes nearby (Moll 1975). Blanding's turtleis a northern species with narrow habitat requirements (prairiemarshes and ponds). Temperatures in the weedy parts of thecooling pond that are shallow enough for this species may be toohot during the warmer months of the year, thereby preventing itsoccurrence.Replacing the land environment with an aquatic one will reducethe populations of most terrestrial species (e.g., Easternyellow-bellied racer, eastern hognose, western fox snake, andsix-lined racerunner). Furthermore, if all the small ponds arefilled, species requiring temporary breeding sites will bereduced (e.g., eastern tiger salamander, western chorus frogs,and gray tree frogs).2.2.2.10.4 InsectsThe population density and taxonomic diversity of the insectpopulation was surveyed on the Braidwood site. Four study areas(2, 3, 6, and 9) were selected for critical analysis, and generalobservations were performed throughout the remainder of the site.Light-traps were used near ponds on Areas 3 and 6 for flyinginsects; sweep nets were used throughout Areas 2, 3, 6, and 9(see Tables 2.2-135 through 2.2-143). Can-traps were also usedin all these areas during the survey to help characterize theinvertebrate populations (see Table 2.2-147).2.2-71 Braidwood ER-OLS2.2.2.10.4.1 Agricultural and Wooded Area InsectsSparsely wooded areas and agricultural lands showed a diverseinsect population. The commonly observed species included thedeer fly (Chrysops sp.), firefly, ground beetle, tiger beetle(Cicindela scuttellaris), bumble bee (Bombus sp.), and honey bee(Borror and White 1970). Walking sticks were also noticed quitefrequently throughout these areas.2.2.2.10.4.2 Marsh-pond InsectsResults indicated that although a diverse insect population mayhave occurred in areas of the Braidwood site, strippingactivities have removed adequate habitat, thus destroying much ofthe existing population. This became obvious when populationcomparisons were made between recently stripped areas andnonstripped areas or areas stripped in the 1940's.Sweep net data (see Tables 2.2-139 through 2.2-142) indicatedthat there was less diversity on the more recently strip-minedareas (see Table 2.2-143). The older strip-mined areas had morefamilies represented than did the newer areas, for which mostspecimens came from only a few families. Light-traps set in themarsh-pond areas illustrated the same difference between olderand newer mined areas (see Tables 2.2-135 through 2.2-138).As in the case of birds, areas of the most recent disturbanceshad the lowest species diversities and population concentrations.Species diversity and population concentrations appeared to behighest in aqueous areas, where proper habitat ensured thecritical growth requirements necessary for adult and larvaldevelopment. The most complex insect communities appeared to bein edge areas bordering the mature hardwoods and ponds. Some ofthe most commonly observed flying insects in these areas includedmayflies (Ephemeroptera), deer flies (Chrysops sp.), butterflies,robber flies, and mosquitoes.In more recently disturbed areas (Areas 2 and 6), populations andspecies diversities appeared to be low. Flying insects wererestricted in these areas by inadequate habitat and a limitedfood supply. The populations appeared to peak in the months ofJuly and August and declined during the month of October. Themost commonly observed flying species appeared to be the deerfly.2.2.2.11 Results of the 1974 through 1975 Baseline Survey:Flora-Fauna RelationshipsThe relationships among plants and animals must be considered interms of a food web, a complex interconnected pattern of energytransfers. Green plants (producers), which receive their energyfrom the sun, stand at the beginning of this web. When eaten,these plants supply energy for the herbivores, which when eatenin turn, supply energy for the carnivores. The decomposers2.2-72 Braidwood ER-OLSfinally return these organisms to the soil. In nature, however,these processes are not as simple as this example suggests.Figure 2.2-44 is a generalized food web for the Braidwood sitethat illustrates the numerous relationships, both direct andindirect, among all the species identified on the site.2.2.2.11.1 Food WebThe 1974 through 1975 terrestrial sampling resulted in a revisedversion of the food web at the Braidwood site. Since the ER-CPS(see Figure 2.2-28), new species have been reported, thatrequired modifications to the web. This updated version ispresented in Figure 2.2-44 and discussed in this subsection.Plants are basic to the food web. without plants supporting theecological pyramid and converting the sun's energy into matter,no complex relationships would be possible. In addition to theirvalue as a food source, plants have value as stabilizers andenrichers of the soil.Invertebrates including worms, millipedes, centipedes, spiders,snails, and insects use plants as food. Their presence in acommunity is often unnoticed until certain results of theiractivity can be seen (such as riddled leaves and damaged bark).Many invertebrates, however, play important beneficial roles inthe maintenance of a healthy ecosystem by aiding in thedecomposition of dead plant and animal material. By theiractions, as well as those of bacteria and fungi, they returnneeded nutrients to the soil to be reused by new plant growth.In addition, invertebrates are important as a basic food for awide variety of higher organisms, such as the small mammals,birds, and omnivores.Small mammals such as the white-footed mouse and the deer mouseare critical to the web because they are a major food source fora wide variety of predators. Their importance as food and asinsect predators is great. The predators, in turn, are importantfor keeping small-mammal and insect populations in check. Bothcould reach dangerously and destructively high levels if allowedto breed in an environment without natural enemies such as foxesand hawks.Some species are so specialized in their dietary requirementsthat they would die without a specific food source. Earthwormsare essential to the survival of the woodcock, and seeds arenecessary for the survival of mourning doves., Other species areless dependent on one food source and could survive without it.The omnivores, such as raccoons and opossums are good examples ofthis adaptability.The food web of the Braidwood site is a complex model. Figure2.2-28 does not attempt to illustrate all the possibleinterrelationships, but rather shows the most important andrepresentative associations. Because of the variety of habitats2.2-73 Braidwood EP-OLSavailable on the site, important species and food chains ofterrestrial and marsh-pond areas are discussed separately in thefollowing subsections.2.2.2.11.2 Food Source AdequacyNumerous plant species are valuable to wildlife as sources offood and cover. The plants that grow in an area are determinedby factors in the physical environment such as the amount ofwater and sunlight available, the soil type, and the climate. Inturn, the type of plants available influences the animal speciesthat will use the area. The following discussion centers on theuse of the Braidwood site by waterfowl since the shallow coolingpond that will cover most of the site is expected to attractlarge numbers of migrating species. The food sources availableto them will be especially important.2.2.2.11.3 Terrestrial Food SourcesGrasses and forbs now dominant on permanent plots are expected toremain at least temporarily following cooling pond formation.These plants will initially be the basic food sources for landanimals and the aquatic species that forage on terrestrial food.The extreme conditions of the spoil ridge tops limited successfulcolonization of the plant species capable of growth on disturbedsites. On the most recently mined areas, vegetation wasdominated by certain species planted during reclamation,including sweet clover, alfalfa, brome grass, and redtop. Sweetclover had remained the dominant species on all plots sampledregardless of the time at which the area was mined. On the olderplots, however, the other planted species had tended to decreasein importance and be replaced by grasses and forbs from windblownseeds.Sweet clover was used to a small extent by a number of animalspecies. Deer, rabbits, and muskrats eat the foliage (Martin etal. 1951), and it is likely that the seeds were a staple forwhite-footed mice and deer mice. Alfalfa seeds and foliage wereattractive to rabbits, mice, deer, and upland gamebirds (Martinet al. 1951). Ducks, including the American widgeon and mallard,eat the foliage and other plant parts (Martin et al. 1951). Theseeds of redtop, Russian thistle, and brome grass plants may beof some value as a food source for waterfowl. Most of the otherplants present on the permanent plots in any abundance, includingasters, goldenrods, milkweeds, three-awned grass, and wildlettuce, were of little value to wildlife (Martin et al. 1951).Until increased moisture and succession produce some changes inthe floral components of the cooling pond islands, waterfowlspecies that feed on land will find little to eat. Certain ducksand geese, however, often fly considerable distances to feed inareas remote from their resting ponds (Madson 1960). Corn andwheat are both raised in the vicinity of the Braidwood site, and2.2-74 Braidwood ER-OLSthese fields may prove quite attractive to a number of waterfowlspecies. Corn alone provides the greater part of the fall dietof mallards and wood ducks. It contributes significantly to thering-necked duck diet and is eaten in small quantities by thegreen-winged teal, American widgeon, black ducks, and redheads inIllinois (Anderson 1959). Pintails also eat corn. Soybeans arenot heavily used by wildfowl. Wheat seeds are eaten by mallardsand widgeons, and Canada geese and coots may also eat the youngplants (Sprunt and Zim 1961). Oak trees in the wooded areas nearthe cooling pond will also provide acorns as food for mallards,black ducks, wood ducks, and pintails (Martin et al. 1951; Spruntand Zim 1961).It is expected that the cooling pond islands and immediateshoreline will provide little terrestrial food for wildfowlbefore succession and changing conditions alter the vegetationalcomponents. There is food available, however, in the sitevicinity for those species that may feed in fields or semi-woodedareas. Waste corn may prove especially attractive to migratingwaterfowl.2.2.2.11.4 Marsh-pond Food SourcesThere was a variety of aquatic and marsh plants present in pondson the site. With the development of a warm, shallow pond, thediversity and number of these plants are expected to increasegreatly. The cut-and-fill methods used for cooling pondconstruction, however, may destroy most of the vegetation presentin the small marsh-ponds. Reseeding and subsequent floral growthin the large cooling pond will be accomplished by the plants thatsurvive the construction process and from seeds carried by theKankakee River water used to fill the pond. Waterfowl enteringthe area will also provide seeds discarded from their digestivesystems.The aquatic and marsh plants now present on the site are alsoexpected to colonize the cooling pond. Nearly all of theseplants are eaten by waterfowl. Although several plant speciesare absent in all but the oldest ponds sampled, it may beexpected that increased nutrient levels from the river water willspeed succession.Cattails generally grow in the shallow water along shorelines.Their starchy roots are a valuable food for geese and muskrats,and ducks will use cattails for cover (Martin et al. 1951).Geese and muskrats will also dig out and eat the rootstocks andstems of horsetails, two species of which are present on the site(Martin et al. 1951). Seeds of the common threesquare orchairmaker's rush are generally a valuable food source forwaterfowl. This plant grows in fringes along pond borders andprovides food for a large number of duck species. It is not acommon plant in the Braidwood ponds, however, and may not be amajor food source. Cyperus is another pond-edge species that waspresent though not common on the site. It was found only in2.2-75 Braidwood ER-OLSponds of an area mined in the 1940's, which suggests that it maytake considerable time to become established. Seeds and tubersof several cyperus species are eaten by a number of ducks,including blue-winged teal, green-winged teal, and pintails(Anderson 1959). Spikerush was also an uncommon plant on thesite. Its seeds and tubers are valuable foods for many duckspecies as well as for blue and Canada geese.The pondweeds are widely used by ducks and geese. In general,all parts of the plant are edible, but it is the abundant seedsthat make the pondweeds such important wildfowl foods. Muskratswill also eat pondweeds. These plants are occasional to abundanton the Braidwood site and could be a valuable duck food if theyalso become abundant in the cooling pond. It is not currentlyknown what effects a rising water temperature and influx ofKankakee River water will have on the site's aquatic flora, butthese factors may cause uncommon plants to become abundant in thenew cooling pond.wild celery is a valuable duck food. All parts of the plant,seeds, leaves, and roots are eaten by a number of duck species.The canvasback received its specific name because of itsextensive use of wild celery (Wetmore 1965). Muskgrass is aseaweed-like algae also widely used by ducks. It was widelydistributed and may become an important food source in thecooling pond because of its wide tolerance to varying light,temperature, and water quality conditions. Water milfoil is asubmerged aquatic plant found in only small amounts in the sampleponds. It is a low-grade duck food, producing an edible seedthat is generally eaten in small amounts.In general, many of the aquatic and marsh plants now growing inthe ponds on the site are edible by wildfowl. If the speciesmost valuable as foods become established in the cooling pond,they will provide an abundant food source for migratorywaterfowl. If these foods also remain available throughout thewinter months, waterfowl may over-winter on the pond.2.2-76 Braidwood ER-OLSTABLE 2.2-52SUtWAR PLANTS OF CORN AND SOYBEAN FIELDSCOMMON NAMEGRASSESBarnyard GrassFoxtail GrassField SandburCrab GrassFall Witch GrassSEDGESedgeFORBSSmartweedMilkweedFlower-of-an-houraGlandular CrotonHorse-nettleVelvet-leafPigweedCockleburbMorning GlorybPurslanebEDGE AREAGiant RagweedCanadian ThistleGoldenrodBarleyWild CarrotSand DropseedDRAINAGE DITCHCattailsSCIENTIFIC NAMEEchinocloa crusgalliSetaria faberiiCenchrus pauciflorusDigitaria sanquinalisLeptoloma cognatu_Carex sp.Polygonum pensylvanicumAsclepias syricaHibiscus trionumCroton glandulosaSolanium carolinienseAbutilon theophrastiAmaranthus retroflexusXanthium spinosumIpomoea hederaciaPortulaca oleraceaeAmbrosia trifidaCirsium arvenseSolidago canadensisHordeum vulgareDaucus carotaSporobolus cryptandrusTypha latifoliaNote: All species found only in corn field except where noted.aFound in both corn and soybean fields.bFound only in soybean field.2.2-145 Braidwood ER-OLSTABLE 2.2-53COMMON PLANTS OF A FIELD OUT O CULTIVATION FOR 2 YEARS: FALL 1972(Total Cover 59%a)COMMON NAMEGRASSESWitch GrassCommon CrabgrassPanic GrassField SandburGreen FoxtailWheatFORBSFrostweedLate BonesetRagweedMuletailPartridge PeaCommon PeppercressAlfalfaYellow Wood--3orrelPrickly SidaFlowering SpurgeLamb's Quarter.ilh.7antPigweeditattle-boxIvy-leafed Morning jiloryEvening PrimroseVirginia Ground-cherryField GoldenrodBlue VervainWinter VetchSCIENTIFIC NAMEPanicum capillareDigitaria sanguinalisPanicum pseudopubescensCenchrus pauciflorusSetaria viridisTriticum aestivumAster pilosusEupatorium serotinumAmbrosia artemisiifoliaErigeron canadensisCassia fasciculataLepidium virginicumMedicago sativaOxalis dilleniiSida spinoa_Euphorbia corollataChenopodium albumTragopogon dubiusChenopodiuni berlandieriCrotalaria sagittalisIpomoea hederaceaOenothera rhombipetalsPhysalis virginianaSolidagb nemoralisVerbena hastataVicia villosaPERCENTCOMPOSITION225'I'1'1251716761'1<1ml(1'1OTHER MONOCOTSSedgeCarex siccataNote: The. rall survey (October 1972), based on Transect 1, was a line interceptanalysis conducted at 50-foot intervals with a total of 200 feet being analyzed tothe nearest inch. The spring survey analysis (May 1973) is listed in Appendix I,Table 14.0-1 of the ER-CPS.BArea of ground covered by standing vegetation.2.2-146 Braidwood ER-OLSTABLE 2.2-54OCCASIONAL AND LOCALIZED PLANTS OCCURRING INA FIELD OUT OF CULTIVATION FOR 2 YEARS: FALL 1972COMMON NAMEGRASSESFall Witch GrassPaspalum GrassFORBSCommon YarrowSpiny PigweedBur MarigoldWild LettuceBush-cloverPurple MilkwortCommon CinquefoilHorsetnettleCanada GoldenrodLate GoldenrodWild BeanCommon DandelionSCIENTIFIC NAMELeptoloma cognatumPaspalum stramineumAchillea millefoliumAmaranthus spinosusBidens aristosaLactuca canadensisLespedeza capitataPolygala sanguineaPotentilla simplexSolanum carolinenseSolidago canadensisSolidago giganteaStrophostyles leiospermaTaraxicum officinaleNote: The fall survey (October 1972), based on Transect 1,recorded species occurring within 5 feet of the transectline but not intercepted during the detailed analysis.2.2-147 Braidwood ER-OLSTABLE 2.2-55COMMON PLANTS OF A FIELD OUT OF CULTIVATION FOR 2 YEARS: SU1IMrR 1973(Total Cover 71%a)COMMON NAMEGRASSESCrab GrassSand DropseedPanic GrassFall Witch GrassField SandburWheatPaspalum GrassFORBSRagweedFleabanePartridge PeaGlandular CrotonEvening PrimroseSpurgeWhite Sweet CloverLamb's QuarterMilkweedWormwoodPrickly Pear CactusHedge MustardFrostweedPuccoonWinged PigweedSCIENTIFIC NAMEDigitaria sanguinalisSporobolus cryptandrusPanicum purpureaLeptoloma cognatumCenchrus pauciflorusTriticum vulgarePaspalum stramineumAmbrosia artemisaiifoliaErigaron canadensisCassia fasciculataCroton glandulosaOenothera rhombipetalaEuphorbia corollataMelilotus albaChenopodium albaAsclepias syricaArtemisia sp.Opuntia ap.Stachys arenicolaAster pilosusLithospermum carolinienseCycloloma atriplicifoliumPERCENTCOMPOSITION531161<15616611,1<1'i'1'1'1<1'1Note: The summer survey (August 1973), based on Transect 1. was a point intercept analysisconducted every foot in 50-foot segments. A total of 450 points was recorded.aArea of ground covered by standing vegetation.2.2-148 TABLE 2.2-56WOODLAND OVERSTORY VEGETATION DATA FOR THE BRAIDWOOD SITE' SUMMER 1973RELATIVE RELATIVE RELATIVENUMBER OF DENSITY/ DENSITY BASAL AREA/ DOMINANCE FREQUENCY FREQUENCY IMPORTANCETREE SPECIES INDIVIDUALS ACRE (t) ACRE (t) (9) (s) VALUE INDEXUNMINED WOODLAND AREASTOTALNUMBEROF PLOTSANALYZEDTRANSECT 4Black Oak(Ouercusývelutina)TRANSECT 8Black Oak(QuercusvelutTna)151125 34 100100 47 100 30038 70 100 16 100 91 100 300WOODED AREAS STRIP-MINED IN 1940*STRANSECT 3Cottonwood(% .T..) iBlack Willow(Salix nira) 5Smooth Sumac(Rhua glabra) 12TRANSECT 9Black Locust(Robiniapseudo-acacia) 6Cottonwood(elto3des) 35Quaking Aspen(PRR Uu__mtreiiioidea) 2Peach Leaf Willow(Salixamygdaloides) 2American Elm(Ulmas americana) 17wto002,.0En43 47 5.00 92 71 62 20114 16 0.1234 37 0.342 28 25 436 14 13 581012 13.00 0.40 1.00 20 12 26.071 76.00 25.00 96.00 100 62 234.04 0.04 0.30 1.10 10 61.24 0.04 0.14 0.55 20 12 13.00.0' 0.01 0.05 "o0 66.1)
Braidwood ER-OLSTABLE 2.2-57OCCASIONAL AND LOCALIZED PLANTS OCCURRINGIN A WOODLAND AREA: FALL 1972COMMON NAMETREEQuaking AspenGRASSESMuhly GrassGiant FoxtailFORBSSmall-flowered AgrimonyLead PlantLong-fruited AnemoneHemp DogbaneWestern FalsefoxglovePrairie-indigoWild-indigoStiff Tick-trefoilDowny GentianCoarse SunflowerRockroseCanada HawkweedLeggett's PinweedFalse DragonheadStarry CampionVioletFERNSRoyal FernMassachusetts FernSCIENTIFIC NAMEPopulus tremuloidesMuhlenbergia glabrifloraSetaria faberiiAgrimonia parvifloraAmorpha canescensAnemone cylindricaApocynum cannabLnumAureolaria grandifloraBaptisia leucanthaBaptisLa leucophaeaDesmodium strictumGentiana puberulaHelLanthus hirsutusHelianthemum canadenseHieracium canadenseLechea leggettiiPhysostegia virgLnianaSilene stellataViola op.Oumunda regalisThelypteris simulataNote: The fall survey (October 1972), based on Transects 4 and 8, recorded speciesoccurring within 5 feet of the transect line, but not intercepted during the detailedanalysis.2.2-150 Braidwood ER-OLSTABLE 2.2-58COMMON SUMMER PLANTS OP A CULTIVATED-WOODLAND AREA: SUMMER 1973(Total Cover 95%a)PERCENTCOMPOS ITIONCOMMON NAMETREESBlack OakAmerican HazelnutNew Jersey TeaPrairie willowSassafrasWhite OakSHRUBSBlack RaspberrySmooth SumacWild RoseWild Grape-ViburnumGRASSESWitch GrassLittle BluestemMuhly GrassIndian GrassSand Reed GrassBig BluestemFoxtailLove GrassFORBSBushy EuthamiaSoybeanFigwortRagweedField GoldenrodPigweed *SunflowerWild BeanPartridge PeaLamb's QuarterBlazing StarConeflowerSCIENTIFIC NAMEQuercus velutinaCorylus americanaCeanothus americanaSalix humilisSassafras albidumQuercus albaRubus occidentalisRhus plabraRosa sp.Vit~is vulpinaViburnum sp.Panicum capillareAndropogon scopariusMuhlenbergil glabrifloraSorgastrum nutansCalamovilfa longifoliaAndropogon gerardiSectaria viridisEragrostis capillarisEuthamia gymnospermoidesGlycine maxScrophularia lanceolataAmbrosia artemisiifoliaSolidago nemoralisAmaranthus retroflexusHelianthus mollisStrophostyles leiospermaCassia fassiculataChenopodium albumLiatris asperaRudebeckia amplexicaulis311921'1'16321'1'I'1554I1INote: The summer survey (August 1973), based on Transect 4, was a point interceptanalysis conducted every foot in 50-foot segments. A total of 1000 pointswas recorded.a Aea of ground covered by standing vegetation.2.2-151 Braidwood ER-OLSTABLE 2.2-58 (Cont'd)COMMON NAMEFalse Solomon's SealWild StrawberryComnmon CinquefoilAsterSpurgeBush CloverGroundnutTick TrefoilFalse FeverfewSnake RootBugleweedPurple AgalinisFalse FoxgloveVioletEvening PrimroseThoroughwortRagweedSunflowerVervainTick Trefoil IIPinweedJimeon. WeedPussy ToesGoat's RueAsterHawkweedGoldenrodFleabaneGoldenrodwild IndigoDeadly NightshadeTall TickseedFrostweedSolomon's SealSCIENTIFIC NAMESmilacina racemosaFragari virginianaPotentilla simpleAster azureusEuphorbia corollataLespedeza capitataApios americanaDesmodium sessilifoliumParthenium integrifoliumSiiene stellataLycopusamericanusGerardia purpureaAureolaria pediculariaViola affinisOenothera rhombipetalaEupaterium serotinumAmbrosia altissimaHelianthus hirsutusVerbena strictaDesmodium, illinoensisLechea villosaDatura stramoniumAntennaria plantaginifoliaTephrosia virginianaAster linariifoliusHieracium sp.Solidago giganteaErigeron canadensisSolidago altissimaBaptisia leucophaeaSolanum nigrumCoreopsis tripterisHelianthemum bicknelliiPolygonatum commutatumPERCENTCOMPOSITION1I111I1'1,i'1'1'1,ICl,I<1'1,I41SEDGESSedgeCarex sp.1NON-FLOWERING PLANTSCinnamon FernOsmunda Cinnamomea22.2-152 Braidwood ER-OLSTABLE 2.2-59COMMON SUMMER PLANTS OF A WOODLAND AREA: SUMMER 1973(Total Coverage 82%alCOMMON NAMETREESBlack OakNew Jersey TeaAmerican HazelnutSHRUBSWild RoseBlack RaspberryLead-plantGRASSESLittle Blue StemMuhly GrassClose-awn GrassWitch GrassBig Blue StemSand Reed GrassLove GrassCrab GrassFoxtailSand DropseedIndian GrassFORBSAsterAsterBushy EuthamiaFleabaneFrostweedVioletGoldenrodSpurgeWild BeanWild StrawberrySunflowerPartridge PeaComnmon CinquefoilFroatweedPussytoesBlazing StarHawkweedRagweedPuccoonFalse Solomon's SealSolomon's SealRattleboxFigwortPrairie-cloverWild SorrelConeflowerVioletGlandular CrotonHedge MustardBush CloverPinweedRUSHESRushSEDGESSedgeNON-FLOWERING PLANTSScouring RushHaircap MossLichenSCIENTIFIC NAMEij urcus velutinaC .no us amrcanaCorylus americanaRosa sp.Ru5us occidentalisAmorpha canescensAndropoqon sc ifsMuhlenber is loraAristida purpurescensPaicmcapillare-A'do n on Qerardiaai~~lfra longifoliaEragrostis capillarisSetaria veridiso-oolus crsyptandrusBSo~rolastrum nutansAster azureusAster -TNear ifoliusEut hmia gymnospe ides4geron canadensisAster -l osusV-=.a eaWtt!S o--dao nemoralisEuphorba coroll-atavirginianaHelianthus sp.Cassi !fasciculataHelianthemum b inelliiAntennaria olantasqnieoliaListris asperaHier-cium ap.Ambrosi-aartemieiifolia-it -e gumcarolinienseSmilacina racemosaon atun commutatumCrotolai satf flScroghularia lancoolataPetalostemum candldumRumex hestaturuusRudFheckia amplexViola affinisCr-oton losasis-mbrum officinaleL espedezaLechea tenufoliaPERCENTCOMPOSITION115I38I184222<I<1'1633221111<1<1'1<1<1<1'1Juncus torreyi31Carex sp.Equisetum hvmenalePoyrcu sp.uinwn<1<1Note: The summer survey (August 1973), based on Transect 8, was a pointintercept analysis conducted every foot in 50-foot segments. A total of945 points was recorded.aArea of ground covered by standard vegetation.2.2-153 Braidwood ER-OLSTABLE 2.2-60VEGETATION OF WOODLAND AND HEDGE-ROW ROADSIDE COMMUNITIESWITHIN THE BRAIDWOOD SITE: FALL 1972COMMON NAMETREESSilver MapleSugar MapleOsage OrangeEastern CottonwoodLombardy Poplar.Black CherryWhite OakRed OakBlack LocustBlack WillowSlippery ElmSHRUBSRed Osier DogwoodSmooth SumacBlack RaspberryWOODY CLIMBERSVirginia CreeperFOrest GrapeGRASSESBrOme GrassCommon CrabgrassTunblegrassWitch GrassFoktailGreen FoxtallFORBSCommon MilkweedHorsetail MilkweedSkyblue AsterSavoryleaef AsterFrostweedTall Beggar-ticksOx-eye DaisyChicoryTrue Solomon's SealFalse Solomon's SealCanada GoldenrodField GoldenrodCommon MulleinCockleburSCIENTIFIC NAMEAcer saccharinumAcer saccharumMaclura pomiferaPopulus deltoidesPopulus italicsPrunue serotinaQuercus albaQuercus rubraRobinis pseudoacaciaSalix nigraUlmus rubraCornus stoloniferaRhus glabraRubus occidentalisParthenocissuS quinpuefoliaVitis vulpineBromus inermisDigitaria sanguinalisEragrostis soectabilisPanicuM caoillareSetaria faberiiSetaria viridisAsclepias syriscaAsclepias verticillstaAster azureusAster lineariifoliusAster pilosusBidens vulgataChrysanthemum leucanthemumCichorium intybusPolygonatum commutatumSmilacina racemosaSolidago canadensisSolidago nemoralisVerbascum thapsusXanthium strumarium2.2-154 Braidwood ER-OLSTABLE 2.2-61COMMONSUMMER PLANTS OF A MARSH AREA: SUMMER 1973(Total Cover 94a)COMMON NAMETREESBlack WillowPeach Leaf WillowRed-osierRed MapleSand-bar WillowSilver MapleSHRUBSWild RoseCommon ElderChoke CherryWOODY VINESBlack RaspberryWild GrapeGRASSESFoxtailBrook GrassWitch GrassFall Witch GrassKentucky BluegrassCrabgrassSandburFORBSFrostweedGoldenrodRagweedWater HorehoundAlfalfaGiant RagweedBeggar's TickShowy Partridge PeaRagweedPrickly LettucePoison IvySmartweedWild StrawberryWild SorrelBugleweedSlender EnotweedWater PepperThroughwortPlantainVervainDaylilyFigwortSCIENTIFIC NAMESalix Salix amygdaloidesCornus stoloniferaAcer rubrumSalix interiorAcer saccharinumRosa op.Sambucus canadensisPrunus virginianaRubus occidentalisVitus Setaria viridisCatabrosa aquaticsPanicum capillareLeptolom cognatumPoe pratensisDigitaria sanguinalisCenchrus pauciflorusAster PilosusSolidago nemoralisAmbrosia tripterisLycopus uniflorusMedicago sativaAmbrosia trifidaBidens aristosaCassia fasiculataAmbrosia artemisiifoliaLactuca serriolaRhus radicansPolygonium pensylvanicumFragaria virginianaRumex hastatulusLycopus americanaPolygonum tenuePolygonum hydropiperoidesEupatoriuih serotinumPlantago majorVerbena hastataHemerocallis fulvaScrophularia lanceolataPERCENTCOMPOSITION3421'1313'1'1'1'1"1(1<1<1'1'1'1'1'1'1'1(I'1'1'3.<1'1<1Note: The summer survey, based on Transect 10, was a point intercept analysis conductedevery foot in 50-foot segments. A total of 850 points was recorded.aArea of ground covered by standing vegetation.2.2-155 Braidwood ER-OLSTABLE 2.2-61 (Cont'd)PERCENTCOMPOSITIONCOMMON NAMESEDGESSpike RushBulrushSedgeSCIENTIFIC NAMEEleocharus op.Scirpus op.Carex op.Juncus torreyiTypha angustifolia2<1<1RUSHESRush7OTHER MONOCOTCattail222.2-156 Braidwood ER-OLSTABLE 2.2-62COMMON PLANTS OF RECENTLY STRIP MINED AREAS: FALL 1972(Total Cover 22%a)COMMON NAMETREESBlack LocustbAlderbRussian OlivebPERCENTCOMPOSITIONSHRUBSandbar WillowGRASSESBrome GrassbFoxtailTumblegrassCrab GrassFORBSAlfalfabRussian ThistlebSweet CloverGoose FootSmartweedLamb's QuarterWinged PigweedOTHER MONOCOTSOhio SpiderwortSCIENTIFIC NAMERobinia pseudoacaciaAlnus glutinosaElaeagnus angustifoliaSalix interiorBromus inermisSetaria faberiiEragrostis spectabilisDigittaria sanguinalisMedicago sativaSalsola pestiferMelilotis officinalisChenopodium berlandieriPolygonum pensylvanicumChenopodium albumCycloloma atriplicifoliumTradescantia ohiensis52-13<146201351-1Note: The fall survey (October 1972), based on Transect 2, was a line interceptanalysis conducted for 50 feet at 250-foot intervals with a total of 400 feetbeing analyzed to the nearest inch.aArea of ground covered by standing vegetation.bPlanted during reclamation program.2.2-157 Braidwood ER-OLSTABLE 2.2-63OCCASIONAL PLANTS IN RECENTLY STRIP MINED AREAS: FALL 1972COMMON NAMETREESSCIENTIFIC NAMEElaeagnus umbellata"Platanus occidentalisAutumn OliveaSycamoreaCottonwoodPopulus deltoidesGRASSESSand Reed GrassBarnyard GrassGreen FoxtailCalamovilfa longifoliaEchinochloa crusgalliSetaria viridisEuthamia gymnospermoidesFORBSBush EuthamiaCommon Morning-gloryBlack NightshadeIpomoea purpureaSolanumn nigrumNote: The fall survey (October 1972), based on Transect 2,recorded species occurring within 5 feet of the transectline but not intercepted during the detailed analysis.aplanted-.during reclamation program.22.2-158 Braidwood ER-OLSTABLE 2.2-64COMMON SUMMER PLANTS OF A RECENTLY STRIP MINED AREA: SUMMER 1973(Total Cover 28%a)COMMON NAMETREESHoney LocustbCottonwoodSHRUBSRussian Olive bGRASSESSandreed GrassBrome GrassbFoxtail GrassFall Witch GrassSandburFORBSAlfalfabTumbleweedFleabaneCockleburRagweedWhite Sweet CloverCanadian ThistlePrickly LettuceSCIENTIFIC NAMERobinia pseudoacaciaPopulus deltoidesEleagnus angustifoliaCalamovilpha longifoliaBromus inermisSetaria viridisLeptoloma cognatumConchrus pauciflorusMedicago sativaSalsola pestiferaErigeron canadensisXanthium chinenseAmbrosia artemisiifoliaMelilotus albaCirsium arvenseLactuca serriolaPERCENTCOMPOSITION31286>I>I64931111>1Note: The summer survey (August 1973), based on Transect 2, was a pointintercept analysis conducted every foot in 50-foot segments. A total of1000 points was recorded.aArea of ground covered by standing vegetation.bplanted during reclamation program.2.2-159 Braidwood ER-OLSTABLE 2.2-65OF AN AREA STRIP MINED IN THE 1960'S: FALL 1972COMMON PLANTS(Total cover 311a)PERCENTCOMPOSITIONCOMMON NAMETREESQuaking AspenCottonwoodRiver BirchbSCIENTIFIC NAMEPopulus tremuloidesPopulus deltoidesBetula nigra15SHRUBSSmooth SumacBlack RaspberrybWild PlumRhus qlabraRubus occidentalisPrunus hortulanaBromus inermisAndropogon gerardi2<1GRASSESBrome GrassbBig BluestemFORBS1231714118Sweet CloverbAlfalfabFrostweedRussian ThistleBushy EuthamiaCommon RagweedPrickly LettuceMelilotus officinalisMedicago sativaAster pilQsusSalsola pestiferEuthamia gymnospermoidesAmbrosia artemisiifoliaLactuca scariolaTradescantia ohiensisOTHER MONOCOTSOhio SpiderwortNONVASCULAR PLANTS.1Leafy MossUnidentified2Note: The fall survey (October 1972), based on Transect 6, was a point interceptanalysis conducted at 1-foot intervals on 50-foot segments 100 feet apart. Atotal of 350 point observations was made.aArea of ground covered by standing vegetation.bplanted during reclamation program.2.2-160 Braidwood ER-OLSTABLE 2.2-66COMMON SUMMER PLANTS OF AN AREA STRIP MINED IN THE 1960'S: SUMMER 1973(Total Cover 351a)COMMON NAMETREESCottonwoodRiver BirchbAlderSHRUBSBlack RaspberrybWild PlumSCIENTIFIC NA4EPopulus deltoidesBetula nigraAlnus sp.PERCENTCOMPOSITION3.1-1Rubus occidentalisPrunus hortulanaGRASSESBrome GrassbSand Reed GrassLittle BluestemBig BluestemFoxtail GrassMuhly GrassSandburFORBSAlfalfabWhite Sweet CloverbFrostweedTumbleweedSunflowerField GoldenrodCommon CinquefoilBeggar's TickWild LettuceSunflowerBushy EuthamiaMilkweekRagweedHedge NettleAmerican FeverfewFleabaneTall TickseedGroundnutEvening PrimroseFigwortBlazing StarNON-FLOWERING PLANTSBromue inermisCalamovilfa longifoliaAndropogon scopariusAndropogon gerardiSetaria veridisMuhlenbergii glabrigloraCenchrus pauciflorusmedicago sativaMelilotus albaAster pilosusSalsola pestiferaHelianthus mollisSolidago nemoraliePotentilla simplexBidens aristosaLactuca serriolaHelianthus maximillianiEuthamia gymnospermoidesAsclepias verticillataAmbrosia artemisiifoliaStachys arenicolaParthenuim integrefoliumErigiron canadensisCoreopsis tripterisApioB americanaOenothera rhombipetalaScrophularia lanceolataLiatrus squarros'192121<141.126201063221111'14141'141Scouring RushEguisetum hymenale'1INote: The summer survey (August 1973), based on Transect 6, was a point interceptanalysis conducted every foot in 50-foot segments. A total of 973 points was recorded.aArea of ground covered by standing vegetation.bplanted during reclamation.2.2-161 Braidwood ER-OLSTABLE 2.2-67COMMON PLANTS OF AN AREA STRIP MINED IN THE 1950's: FALL 1972(Composition: Bromus inermis '90%a)COMMON NAMETREESBOX ElderEastern CottonwoodBlack WillowSHRUBMultiflora RoseGRASSESThreeawnBrome GrassGiant FoxtailFORBSHorsetail MilkweedHemp DogbaneFrostweedCommon Mouse-ear ChickweedLamb's QuarterChicoryCanada ThistleBindweedWild CarrotLate BonesetGarden SunflowerWild LettuceWhite Sweet CloverCurly DockRussian ThistleHorse NettleField GoldenrodHoary VervainCockleburMARSH PLANTSSedgeSpike-rushPondweedGreat BulrushBroad-leaved CattailSCIENTIFIC NAMEAcer negundoPooulus deltoideoSalix nigraRosa multifloraAristida sp. (no flowers)Bromus inermisSetaria faberiiAesclepias verticillatehpocynum cannabinumAster pilosusCerastium vulgatumChenoPodium albumCichorium intybusCirsium arvenseConvolvulus sp.Daucus CarotaEupatorium serotinumHelianthus annuusLactuca canadensisMelilotus albaRumex crispusSalsola pestiferSolanum carolinenseSolldago nemoralisVerbena strictaXanthium strumariumCarex frankiiEleocharis ovatePotamogeton natansScirpus acutusTypha latifoliaNote: The fall survey (October 1972) was based on Transect 5 (located 3 miles south ofsite); analysis conducted by observation of vegetation within 5 feet of line because ofdense cover of Bromus inermis.aBromus inermis was planted in this area as part of a strip mine reclamation program.2.2-162 Braidwood ER-OLSTABLE 2.2-68COMMON SUMMER PLANTS OF AN AREA STRIP MINED IN THE 1950'S: SUMMER 1973(Total Cover 45,a)COMMON NAMETREESBlack WillowSCIENTIFIC NAMEPERCENTCOMPOSITIONSalix .niraSHRUBSWild RoseBlack RaspberryRosa ap.Rubus occidentalisGRASSESBrome GrassbTriple-awned GrassMuhly GrassSquirreltail GrassUnknown GrassBromus inermisAristida oliganthaMuhlenbergili glabrifloraHordeum iubatumGramineae584<1(1OTHER MONOCOTSCattailTypha latifolia6FORBSWhite Sweet CloverGoldenrodFrostweedAlfalfaBindweedCanadian ThistlePondweedBeggar's TickRagweedWild SorrelCockleburTumbleweedPlantainGiant RagweedEvening PrimroseWild StrawberryFlower-of-an-hourMelilotus elba.Solidaqo sp.Aster pilosusMedicago sativaConvolvulus op.Cirsium arvensePotomogeton illinoiensiaBidens aristosaAmbrosia artemisiifoliaRumex hastatulusXanthium chinenseSalsola pestiferaPlantago majorAmbrosia trifidaOenothera rhombipetalaFragaria virginianaHibiscus trionum321414141CI41SEDGEBulrushSpikerushSedgeScirpus acutusEleocharis ovataCarex frankiiJuncue torreylRUSHRush.1tNote: The summer survey (August 1973), based on Transect 5, was a point intercept analysisconducted every foot in 50-foot segments. A total of 1230 points was recorded.aArea of ground covered by standing vegetation.bBrome grass was planted during reclamation.2.2-163 Braidwood ER-OLSTABLE 2.2-69COMMON PLANTS OFAN AREA STRIP MINED IN THE 1445S: FALL Xq12(Total Cover 75%a)COMMON NAMETREESCottonwoodSHRUBSB14ck Raspberry-GRASSESPrairie ThreeawnBig BluestemLittle BluestemLace GrassWitch GrassFORDSAlfalfaSweet CloverGoldenrodWild CarrotAsterWild StrawberryRagweedFlowering SpurgeCommon CinquefoilHorsetail MilkweedTall TickseedCoarse SunflowerCockleburPERCENTCOMPOSITIONSCIENTIFIC NAMEPopulus deltoidesRubus occidentalisAristida oliganthaAndropogon gerardiAndropoqon scopariusEragrostis capillarisPanicum capillareMdao sativ. aMelilotus officinalisSolidago canadensisDaucus carotaAster pilosusFragaria virginianaAmbrosia artemisilfoliaEuphorbia-corollatsPotentilla simplexAsclepias verticilletaCoreopsis tripterisHelianthus hirsutusXanthium strumarium12221BS2019<i7321111NONVASCULAR PLANTSMossAlgaeunidentifiedProtococcus op.5Note: The fall survey (October 1972) , based on Transect 3, was a point intercept analysisconducted at 6 inch intervals on 50-foot segments 200 feet apart. A total of 400 pointobservations was made.aArea of ground covered by standing vegetation.2.2-164 Braidwood ER-OLSTABLE 2.2-70COMMON SUMMER PLANTS OF AN AREA STRIP MINED IN THE 1940'S: SUMMER 1973(Total Cover 72%a)COMMON NAMETREESPeach-leaf WillowRed MulberryCottonwoodBlack WillowWild Black CherrySHRUBSSmooth SumacWild RoseVINE AND BRAMBLESBlack RaspberryWild GrapeGRASSESTriple Awn GrassLittle BluestemBig BluestemWitchgrassMubly GrassSand Reed GrassFoxtail GrassClose Awn GrassCord GrassFORBSMilkweedWhite Sweet CloverWild CarrotGoldenrodPondweedRagweedFleabaneFrostweedSpurgeBeggar TicksSelf-healBushy EuthamiaObedient PlantWild StrawberryMilkweedThoroughwort.Canada ThistleVervainCockleburSunflowerDandelionTall TickseedCattailSEDGEBulrushNON-FLOWERING PLANTSGreen AlgaeScouring RushSCIENTIFIC NAMESalix amygdaloidesWo-rus -ru9r-aPrunus serotinaRhus glabraRosa sp.Rubus occidentalisVisvulpineAristida aliganthaAndropo on scoriusPanicum caoillareMu- er q- ar ifloraSetarla viridisAiE a ourpurascens.Sartffns sp.Asclenias verticillataMeTI1us aaDaucus carota;idsU nemorallis_Poqooeton illinoienstsAmbrosia ar temesiifoliar -l -e r n c a n a de n s i sAster locusEu hor T~ioltBio--" a'i'osna aPrunen a vu -arisEuthamia QymnospermoidesPh soste enaFrgravirin InaEupatorium serotinumCirsium arvenseTanthium-c-EInesee-litus ma-xm llianiTaraxicum o 1TETinafe,Scirpus sp.Chars so.Fq-uletum hymenalePERCENTCOMPOSITION21111313104111'11186543111141'1'1(1Note: The summer survey (August 1973), based on Transect 3, was a point intercept analysisconducted every foot in 50-foot segments. A total of 735 points was recorded.aArea of ground covered by standing vegetation.2.2-165 Braidwood ER-OLSTABLE 2.2-71OCCASIONAL OR LOCALIZED PLANTSOCCURRING IN AN OLD STRIP-MINED AREA: FALL 1972NCOMMON NAMETREESBox ElderFlowering DogwoodEastern Red CedarPeach-leaved WillowSHRUBSPlumSmooth SumacSandbar WillowWOOOY CLIMBERSForest GrapeGRASSESArrowfeather ThreeawnCommon ReedIndian GrassFORBSBur MarigoldCarpenter WeedLate GoldenrodField GoldenrodSow ThistloCo mson MulleinMARSH PLANTSTall Scouring RushTorrey's RushSoftstem BulrushBroad-leaved CattailSCIENTIFIC NAMEAcer negundoCornus floridaJ cf. virgtnianaSalix amygdaloidesPrunus sp.Rhus glabraSalix interiorVitis vulpineAristida purpurascansPhragmites communisSorghastrum nutansBidens aristosaPrunella vulgarisSolidago giganteeSolidago nemoralisSonchus uliginosusVerbascum thapsusEguisetum hyemaleJuncus torreyiScirpus validusTypha latifoliaNote: The fall aurvey (October 1972), based on Transect 3, recorded species ocur-ring within 5 feet of the transect line but not intercepted during the detailedanalysis.(I2.2-166 Braidwood ER-OLSTABLE 2.2-72A PARTIALLY WOODED AREA STRIP M4INED IN THE 1940'S: SUMMER 1973COMMON SUMMER PLANTS OF(Total Cover64aCOMMON NAMETREESBlack WillowCottonwoodQuaking AspenPeach Leaf WillowPrairie WillowBlack OakAmerican HazelnutDogwoodSHRUBSSmooth SumacWild RoseWOODY VINESBlack RaspberryWild GrapeVirginia CreeperGRASSESLittle BluestemKentucky BluegrassSand Reed GrassTriple Awn GrassFoxtailClose Awn GrassMuhly GrassWitch GrassFORDSWhite Sweet CloverGoldenrodSunflowerWild StrawberrySpurgeFleabaneSunflowerWild BeanCommon CinquefoilBushy EuthamiaCulver's RootBeggar's TickTick TrefoilSpurgeFalse FeverfewWater HorehoundRosin-weedMilweedHoary PuccoonRagweedWild IndigoTall TickseedPrickly LettuceSlender KnotweedCanadian ThistleHedge NettleBugle-weedDeadly NightshadeFalse Solomon's SealLamb's QuarterGround CherrySEDGESSedgeRUSHESRushNON-FLOWERING PLANTSScouring RushNote: The summer survey (Augustanalysis conducted every foot inPERCENTCOMPOSITIONSCIENTIFIC NAME?Ppl4sde oidesdlua tremu=oidessalix humil_ sQuercue ve-t inaCorylus americanaCornus op.Rhus glabraRoss sp.Rubus occidentalisPar-t-enoc_ su_ quinguefoliaAndropogon scopariusPoa ?atons .oU.M. aHI---on~ifol iaAristida ant aSetaria veridisAristid!a rpurescenskuhlenberq7Iia Sbr loraPaiu capillareMelilotus elba-oi ag aI~tIsimaHelianthue hirsutusEo or q rollateanthus mollisStrophosty l e-=lospermaVeroncastrum vi rgnCBEdens saristos-aDeBm-diT a al'i n asisp)a9ora corollataLyous unif lorus-- -tere-- nthinaceumAscepls vrtfillatam carolinienseAmbrosia iartemesTiMOTIiaLactuca serriolaPo'-l-9Oum tenuePirsxum arvenseus ianusSoaniiiiii Tg rum,Smilacena racemosaChenop-dium album44444'14'14465I2173,1.1<111743111*1<1*1'141<14141414141'ICarex sp.Juncus torreyiEquisetum hymenale1973), based on Transect 9, was a point intercept50-foot segmients. A total of 1000 points was recorded.SAreaof ground covered by standing vegetation.2.2-167 Braidwood ER-OLSTABLE 2.2-73SUMMER FLORA RECORDED AT THE BRAIDWOOD SITEDURING SUMMER SURVEY AND LOCATION OF EACH SPECIES: SUMMER 1973TRANSECTS OCCURRED'1 2 3 4 5 6 7 8 9 10COMMON NAMETREESHoney LocustCottonwoodPeach-leaf WillowBlack WillowBlack OakQuaking AspenAmerican HazelnutNew Jersey TenPrairie WillowSandbar WillowSassafrassWhite OakRed MulberryWild Black CherryBirchAlderRed OsierRed MapleSilver MapleSHRUBSSmooth SumacWild RoseBlack RaspberryWild GrapeCommon ElderVirginia CreeperLead-plantWild PlumChoke CherryDogwoodViburnumRussian OliveGRASSESSandreed GrassBrome GrassBig BluestemLittle BluestemFoxtail GrassFall Witch GrassWitch GrassPanic GrassCrab GrassSandburSand DropseedWheatTriple Awn GrassIndian GrassSCIENTIFIC NAMERobinia pseudoacaciaPopulus deltoidesSalix amygdaloidesSalix nigraQuercus velutinaPopulus tremuloidesCorylus americansCeanothus americanaSalix humilisSalix interiorSassafrass albidumQuercus albaMorus rubraPrunus serotinaBetula nigraAlnus sp.Cornus stoloniferaAcer rubrumAcer saccharinum223336 99 105 108 998 98910444443366Rhus glabraRosa sp.Rubus occidentalisVitia vulpinaSambucus canadensisParthenocissus quinquefoliaAmorpha canescensPrunus hortulanaPrunus virginianaComus sp.Viburnum sp.Eleagnus augustifoliaCalamovilfa longifoliaBromus inermisAndropogon gerardiAndropogon scovariusSetaria veridisLeptoloma cognatumPanicum capillarePanicum purpureaDigitaria sanguinalisCenchrus pauciflorusSporobolus cryptandrusTriticum vulgareAriatida oliganthaSorgastrum nutans333344 54S649898 991010101010101010a69942234 62 5634 634 68 988 921 21112134 6 89101034 89108 106 1083 5aasee last page of this table.2.2-168 COMMON NAMEGRASSES tCont'd)Close Awn GrassCord GrassLove GrassKentucky BluegrassSquirreltail GrassMuhly GrassBrook GrassFORBSAlfalfaRagweedWhite Sweet CloverGoldenrodGoldenrodFleabaneMilkweedBeggar-ticksTumbleweedShowy Partridge PeaEvening PrimroseCanadian ThistlePrickly LettuceCockleburWild CarrotWild StrawberryWormwoodTall TickseedVervainTick TrefoilVervain IITick Trefoil IISpurgeFrostweedAster IIAster IIILamb's QuarterSunflowerSunflower IISunflower IIIGiant RagweedPlantainRagweed IIRagweed IIIThroughwortDandelionPondweedSelf-healBushy EuthamiaPrickly Pear CactusBindweedCommon CinquefoilBraidwood ER-OLSTABLE 2.2-73 (Cont'd)SCIENTIFIC NAMEAristida purpurascensSpartina op.Eragrostis capillarisPoo pratensisHordeum jubatumMuhlenbergia glabrifloraCatabrosa aquaticaMedicago sativaAmbrosia artemisiifoliaMelilotus albaSolidago nemoralisSolidago altiasimaEr__eron canadensisAsclepias verticillataBidens aristosaSalsola pestiferaCassia fasiculataOenothera rhombipetalaCirsium arvenseLactuca serriolaXanthium chinenseDaucus carotaFragaria sp.Artemesia ap.Corvoosis tripterisVerbena strictaDesmodium illinoensiaVerbena hastataDesmodium sessiliEoliumEuphorbia corollataAster pilosusAster azureusAster linariifoliusChenopodium albaBellanthus maximillianiHelianthus mollisHelianthus hirsutueAmbrosia trifidaPlantago maJorAmbrosia altissimaAmbrosia tripterisEupa torium serotinumTaraxicum officinalePotamogeton illinoiensisPrunella vulgarisEuthamia 2ymnoapermoidesOpuntia op.Convolvulus sp.Potentilla simplexTRANSECTS OCCURRED81 2 3 4 5 6 7 8 9 10338 949 10534569 9102 56123456123 563456341234 63 63 562 561 41 45623 51 323 53345134 634441 341 3 56441 43 64 6410O 9 1098 1098999 108 1098 9 10991089B 1098995 105 10410103433 5334 654 68 98 9aSee last page of this table.2.2-169 COMMON NAMEFORDS (Cont'd)Wild DeanWater HorehoundBugleweedWild IndigoFigwortwild SorrelFlower-of-an-hourBlazing StarHedge NettleBlazing Star IIObedient PlantCulver'a RootSlender KnotweedRosin-weedFalse Solomon's SealSmartweedBush CloverGroundnutDeadly NightshadeWater PepperDay LilyPoison IvyFrostweedPussy ToesHawkweedVioletViolet 7ISolomon's SealConeflowerRattleboxFake FoxgloveFalse FeverfewSnake RootPurple AgalinisPigweedSoybeanPinweedJimson weedPrairie CloverGoldenrodPussy ToesHedge MustardHoary PuccoonGround CherryCattailGlanular CrotonWinged PigweedBraidwood ER-OLSTABLE 2.2-73 (Cont'd)SCIENTIFIC NAMEStrophostyles leiospermaLycopus uniflorusLycopus americanaBaptism leucophaeaScrophularia lanceolata*Rumex hastatulusHibiscus trionumLiatrus squarrosaStachys arenicolaLiatrus asperaPhysostegia virginianaVeronicastrum virginicumPolygonum, tenueSilphium terebinthinaceumSmilacina racemosaPolygonum pensylvanicumLespediza capitataApios americanaSolanum nigrumPolygonum hydropiperoidesHemerocallis fulvaRhus radicansHelianthemum bicknelliAntennaria plantaginifoliaHieracium sp.Viola sagittaViola affinisPolygonatum commutatumRudbeckia amplexicaulisCrotolaria sagittalisAureolaria pedicularisParthenium integrifoliumSilene stellataGerardia purpureaAmaranthue retroflexusGlycine maxLechea villosaDatura stramoniumPeta lostemum candidumSolidag gigenteaAntennaria plantaginifoliaSisymbrium officinaleLithospermum caroliniensePhysalie sp.Typha op.Croton glanulosaCycloloma atriplicifoliumTRANSECTS OCCURREDa1 2 3 4 5 6 7 8 9 1044465S668 99 109 1098 108 1094 8399 1094 8 910444a691010104 884 884 84 84 8a444444446988441116 8a99103 58SEDGESSpike RushBulrushSedgeeSee last page of this table.Bleocharus op.Scirpus sp.Carex sp.S3 54 51010a 9 102.2-170 Braidwood ER-OLSTABLE 2.2-73 (Cont'd)TRANSECTS OCCURREDa12 3 4 5 6 7 9 9 10COMMON NAMERUSHESRushNON-FLOWERING PLANTSScouring RushCinnamon FernHaircap MossGreen AlgaeLichenSCIENTIFIC NAMEJuncus torreyiEquisituia hymenaleOsmunda cinnamoneaPolytrichum sp.sp.Unidentified5 8 9 103 6 a 9483 9aKey to Transects:Number1234567a910DescriptionFallow field out of cultivation for two yearsRecently strip-mined areaArea strip-mined in 1940'sCultivated-woodland areaAres strip-mined in 1950'sArea strip-mined in 1960'sCultivated fieldWoodland areaWooded area strip-mined in 1940'sMarsh area2.2-171 Braidwood ER-OLSTABLE 2.2-74FLORA OF THE RIDGETOPS OF STUDY AREAS AND THE WOODLAND AREAS OFBRAIDWOOD SITE DURING THE 1974 SPRING AND FALL SURVEYSAND THE LOCATIONS OF EACH SPECIESLOCATIONa2 3 6 A BCCOMMON NAMETREESBlack OakWhite OakBlack CherryPrairie WillowWard's WillowbPeach-leaved willowAmerican SycamoreWillowSHRUBSWild RoseRoseBlackberryBlackberryHortulan PlumSmooth SumacGRASSESPanic GrassBrome GrassRedtop GrassMuhly GrassThree-awn GrassWitch GrassSquirrel-tail GrassGrassKentucky BluegrassIndian GrassIndian GrassCrab GrassCrab GrassLittle BluestemBig BluestemFresh-water CordgrassSwitchgrassbDeergrassbClose-awn GrassSCIENTIFIC NAMEQuercus velutinaOuercus albaPrunus serotinaSalix humilisSalix caroliniansSaiL_ amygdaloidesPlatanus occidentalisSalx sp.Rosa carolinaRosa sp.Rubus allegheniensisRubus op.Prunus hortulanaRhus glabraPanicum ap.Bromua inermisTriodia sp.l4uhlenbergis glabrifloraAristida sp.Panicum capillareHordeum JubatuGraminaePoa pratensisSorghastru, nutansSorghastrum op.Digitaria sanguinalisDigitaris op.Andropogon scopsriusAndropogon gerardiSPartina PectinatePanicum virgatumRexia virginicaArisa'ida purpurascensABA SAAAAA6 AAAABBB2 3 622AAC33332 3A CC666 CAAAAAAAAAA.3aSee last page of this table.bSpecies identified on the site for the first time during 1974 survey._j2.2-172 COMMON NAMEFORBSAlfalfaRussian ThistleRagweedWhite Sweet CloverRussian OliveDandelionSweet CloverFleabaneSand CrotonGoldenrodHorsetail MilkweedFrostweedAsterGoat's-beardWild LettuceSand PhloxSow-thistleBushy EuthamiaBush CloverWood SorrelAsterCulver's-rootSmartweedEvening PrimroseCreeping Wood-sorrelCommon ThistleSleepy CatchflybHawkweedPeppercressHorsemintPrickly LettuceWild StrawberryCommon YarrowGrapeWinged PigweedCommon CinquefoilAsterBraidwood ER-OLSTABLE 2.2-74 (Cont'd)SCIENTIFIC NAMEMedicaq sativaSalsola kaliAmbrosia artemisiifoliaMelilotus albaElesgnue sp.Taraxacum officinaleMelf2otus op.Er geron canadensisCroton qlandulosusSolidag sp.Ascleaias verticillataAster pilosusAster linarilfoliusTragopogon dubiusLactuca ep.Phlox bifidaSonchus ap.Euthamia gymnospermoideeLespedeza capitataOxalis sp.Aster sp.Veronicastrum virginicumPolygonum pensylvanicumOenothere ep.Oxalis corniculataCirsium op.Silene antirrhinaHieracium ep.Lepidium densiflorumMonarda sp.Lactuca scar iolaFragarie virginianaAchilles millefoliumvitis sp.Cycloloma atriplicifoliumPotentilla simplexAster azureusLOCATIONS222222223333333333666666666A B CCAAAACCCCB CCB CBCCCB3 666 A3 66 A6 A6 A2 6 A666 A6 ACCCCCCB C3A BAaSee last page of this table.bspeciee identified on the sitefor the first time during 1974 survey.2.2-173 Braidwood ER-OLSTABLE 2.2-74 (Cont'd)COMMON NAMEPussytoesBirdfoot VioletTall CinquefoilSunflowerSolomon's SealPartridge-peaSpiderwortPennell FoxglovebFalse FoxgloveFoxglovePartridge-peaHoary PuccoonDockFigwortBlue-eyed GrassbVioletFlowering SpurgeSolomon's SealFalse Solomon's SealPoison IvySlueberrybCoat's-rueSour DockLead-plantStarry Solomon's SealFrostweedPinweedHoary PuccoonbYellow LoosestrifebCommon MilkweedSunflowerPinweedBlazing StarFalse LoosestrlfeCommon Ladies-tressesOrchidbSand VioletbSCIENTIFIC NAMEAntennaria Plantaginifollaviola pedataPotentilla argutaHelianthus op.Polygonatum commutatumCassia sp.Tradescantia op.Aureolaria grandifloraAureolaria pediculariaAureolaria sp.Cassia fsaciculataLithospermui carolinienseRumex sp.Scrophularia lanceolataSisyrinchium albidumViola ap.Euphorbia corollataPolygonatum biElorumSmilacina racemosaRhus radicanaVaccinium ap.Tephrosia virginianaRumex acetosellaAmorpha caneascensSmilacina stellataHelianthemum bicknelliLeches tenulfoliaLithospermum canescensLysimachia terrestrisAsclepLas syriacaHellanthus mollisLechea minorLiatris sp.Ludwigla ap.LOCArIONa2 3 6 A BCA SAAAAAAAAAAAAAAAA BaBBBAAAAAAAAAAAA BASpiranthes cernuaViola fimbriatulaAAasee last page of this table.bspecies identified on the site for the first time during 1974 survey.2.2-174 Braidwood ER-OLSTABLE 2.2-74 (Cont'd)SCIENTIFIC NAMELOCATIONa2 3 6 A BCCOMMON NAMESEDGESSpike RushSedgeRUSHWoodrush bMOSSES AND LICHENSHaircap MossMOSSEleocharis op.Carex sp.Luzula bulbosaAAPolytrichum communeCatherinia sp.Mniu__nm sp.Cladonia op.MosSLichenNON-FLOWERING PLANTSScouring RushBracken FernAAAAAEquisetum hyemalePteridium aquilinumDescriptionRecently strip-mined areaArea strip-mined in 1940'sArea strip-mined in 1960'sOak Woodland areaOak Woodland areaArea strip-mined in 1940'saKey to transects:Location236ABCbSpecies identified on the site for the first time during 1974 survey.2.2-175 Braidwood ER-OLSTABLE 2.2-75POND BANK FLORA RECORDED AT THE BRAIDWOOD SITE DURING THE 1974SPRING AND FALL SURVEYS AND THE LOCATIONS OF EACH SPECIESCOMMON NAMETREESPoplarPeach-leaved WillowSandbar WillowBlack WillowQuaking AspenSHRUBSSmooth SumacHeadowsweetb-Wild Grapewild RoseBlackberry bSilky DogwoodGRASSESLittle BluestemLove GrassMuhly GrassBrome GrassbBroom-sedgePanic GrassCommon ReedFORBSObedient PlantCompass PlantSweet CloverStarry Solomon's SealSolomon's SealThistleHorsetail MilkweedGoldenrodCommon MilkweedGoat's-beardAsterRagweedWhite Sweet CloverVelvet LeafTwisted-stalk LilybAsterCockleburSEDGES bUmbrella SedgeSpike-rushBulrushOTHER MONOCOTSNarrow-leaved CattailBroad-leaved CattailWater-plantainbRUSHESRushNON-FLOWERING PLANTSHorsetailHorsetailSCIENTIFIC NAMEp4sdatoidesRMI.U mydal2oidesbelix interiorRe-- =iP tremuloidesRhus ra*-pi-ra e aelbaRosa sp._-__"s sp.Cornus amomumAndropogen scopariusEra rostis sp.Muh en or ia ap.Bromus Sp.Andropoqon virginicusPanicum sp.Ph-agmites sp.Phy sostegp virinianai t. tare nthnaceummelilotus sp.SRIlacina stellataP-ly9onatum commutatumCirsium arvenneAaC lepa 3rtcillataSolidago sp.Tragapogon dubiusAster op.artemisaifoliaMeri-totus-a1 -Verba-scum thapsusrtous roseusAster na r ousXanthium ap.Cyperus flavescensEleocharT-s Musap.Typha nifoliaTypha NY aRAlisma sp.Juncus canadensisEau setum hyamaleEguisetum arvenseLOCATIONa23 6 9C2 992 3 C29999 C93 9 C999C69 CCC999C9999 C9 C332 32 3332222266699CCCCCCC9CCC99CaKey to transects:Location "DescriptonSRecently StrIp- ined ares3 Area strip-mined in 1940's6 Area strip-mined in 1960's9 wooded area strip-mined in 1940'sC Area strip-mined in 1940'sbSpecies identified on the site for the first time during 1974 survey.2.2-176 Braidwood ER-OLSPOND FLORADURING THE 1974 SPRING ANDTABLE 2.2-76RECORDED AT THE BRAIDWOOD SITEFALL SURVEYS AND THE LOCATIONS OF EACH SPECIESLOCATIONa=97--COMMON NAMETREESSandbar WillowPeach-leaved WillowHoney LocustSmooth SumacQUATIC PLANTSNarrow-leaved CattailBroad-leaved CattailCattailSmall PondweedbIllinois PondweedSago PondweedCommon ReedbChairmaker's .RushbRushbBulrushWater-milfoilHorsetailMusk GrassWild CelerybWater-plantainbSCIENTIFIC NAMESalix interiorSalix amygdaloidesRobinia nseudoacaciaRhus qlabraTypha anqustifoliaTypha latifoliaTypha sp.Potamogeton pusillusPotamogeton illinoensisPotamogeton pectinatusPhragmites cosmunisScirpus americanaJuncus canadensisScirpus sp.Mvriophyllum sp.Equisetum arvenseChara sp.Vallisneria americanaAlisma sp.369993 92669CCC9CC9CC33CC3 9 C6aKey to transects:Location DescriptionI~ Area recently strip-mined3 Area strip-mined in the 1940's6 Area strip-mined in the 1960's9 Wooded area strip-mined in the 1940'sC Wooded area strip-mined in the 1940'sbSpecies identified on the site for the first time during 1974 survey.2.2-177 Braidwood ER-OLSTABLE 2.2-77OVERSTORY ANDWOODY UNDERSTORY OF STUDY AREA ACOMMON NAMEBLACK OAK BLACK CHERRYCALCULATIONFrequency (%)Density/AcreDominance 2(basal area in ft2)RelativeFrequency (%F)'RelativeDensity (%D)RelativeDominance (%DO)Importance Value(%F + %D + %DO)100.0176.221.692.399.199.997.18.33TOTAL177.91.7< 1.021.67.70.90.12.9100.0100.0100.0100.0Note: Based on the 1974 spring survey; a variable-radiusplot method was used. Plots were established at 50-foot in,-tervals. A total of twelve 8-meter diameter plots were sam-pled. Only those species with a greater than 1 inch diameterat breast height (dbh) were recorded.2.2-178 TABLE 2.2-78OVERSTORY SPECIES OF STUDY AREA BCALCULATIONFrequency (%)Density/AcreDominance 2(basal area in ftRelativeFrequency (%F)RelativeDensity (%D)RelativeDominance (%DO)Importance Value%F + %D + %DO)BLACK OAK100.0226.223.882.494.696.196.9COMMON NAMEWHITE OAK14.38.50.811.83.63.27.0BLACK CHERRY7.14.30.25.91.80.83.2TOTAL239.024.8100.1100.2100.1107.1l-J-40.00EnNote: Based on 1974 fall survey; a point-quarter method was utilized. A total of14 plots were sampled at 50-foot intervals. Only those species with a dbh greater than1 inch were recorded. Braidwood ER-OLSTABLE 2.2-79GENERAL OBSERVATIONS OF WOODY UNDERSTORYAND FALL HERBACEOUS VEGETATION PRESENT IN STUDY AREA BCOMMON NAMESCIENTIFIC NAIMESHRUBSBlack CherryAmerican HazelnutSmooth SumacBlackberryBlueberryWild GrapePrunus serotinaCorylus americanaRhus glabraRubus sp.Vacciniumn sp.Vitis sp.FORBSBlazing StarRagweedGoldenrodFlowering SpurgeCommon CinquefoilSolomon's SealPussytoesFalse Solomon's SealPoison IvyLiatris sp.Ambrosia artemisiifoliaSolidago sp.Euphorbia corollataPotentilla simplexPolygonatum biflorumAntennaria plantaginifoliaSmilacina racemosaRhus radicansNqte: These are observations of species present duringthe fall 1974 survey. No formal sampling was undertakenfor the understory species. The overstory species sampledare tabulated in Table 2.2-78.2.2-180 Braidwood ER-OLSTABLE 2.2-80COMMON SPRING PLANTS OF STUDY AREA ACOMMON NAMETREESBlack OakPrairie WillowSHRUBSRoseWild RoseHortulan PlumBlackberryGRASSESKentucky BluegrassIndian GrassLittle BluestemIndian GrassCrab GrassCrab GrassMuhly GrassPanic GrassFORBSSour DockAsterBushy EuthamiaAsterCommon CinquefoilAsterEuthemiaGoldenrodPussytoesBirdfoot VioletTall CinquefoilSunflowerSolomon's SealPartridge-peaCreeping SorrelSand PhloxSpiderwortPennell FoxgloveCommon RagweedFalse FoxgloveFoxglovePartridge-peaAsterHoary PuccoonDockFigwortPigwortBlue-eyed GrassvioletSEDGESSpike RushSedgeRUSHWoodrushMOSSES AND LICHENSHaircap MossMOSSMOSSLichenMossBare SoilLitterSCIENTIFIC NAMEQuercus velutinaSalix hTum-1riiRoss sp.Rosa carolinaPr-unu-s-ho-rtu oneRuus Sp.Po ra tpensiSo-glas trum nutansAndropo onscoarusSorghastrum sp.taria sanguinalisDi tsrl sp.Muhlenbergia sp.Panicum sp.Rumex acetosellaAster ap.Euthamia gy!nosjersoideaAster r usF.otentiL a IL~gTallxAster azureusEuthamia sp.solId-ago ap.Antennaria ilantaginifoliaViola pFo-6tea argutaHelianthus ap.Polgonatum commutatumCs4a ap.Oxa"S corniculataPS lox bifridaTra-3ssda-ia sp.Aureolaris flAmbrosia artemisiiholiaAure-o---ria pedicularisAureolaria sp.Cassia fasciculataAster sp.L ktospermum carolinienseRumex ap.c-rohlari lanceolatacrophularia sp.nchjium albidumvoasp.Eleocharis sp.Carex sp.NUMBER OF FREQUENCYOCCURRENCES %16131.31.11612311752922B44336729292320191998643322222111111I111153411.31.00.30.114.62.41.80.70.30.30.30.35.62.42.41.91.71.61.60.80.70.50.30.30.30.20.20.20.20.20.10.10.10.10.10.10.10.10.10.10.14.43.41.31.10.30.20.10.10.841.18100.8Luzula bulbosaPolytrichum communeF-atherinia sF-.mnium sp.C a onia op.151332119493TOTAL 1200Notes Based on 1974 spring survey; a line transect method was used. A total of 1200 pointswas sampled.2.2-181 Braidwood ER-OLSTABIX 2.2-81COMMON FALL PLANTS OF STUDY AREA ACommon NameTREESBlack OakWillowPeach-leaved willowPrairie WillowWard's WillowSHRUBSWild RoseBlackberryGRASSESKentucky BluegrassLittle BluestemBig BluestemIndian GrassFresh-water CordgrassBrome GrassBrome GrassPanic GrassSwitchgrassDeergrassFORBSFrostweedBushy EuthamiaGoat's-rueAsterSour DockCommon RagweedCommon CinquefoilSand CrotonLeadplantAsterFleabaneGoldenrodFalse FoxgloveStarry Solomon's SealSpurgeBush CloverWood-sorrelHorsetail MilkweedPussytoesAsterPartridge-peaAsterFrostweedPinweedHoary PuccoonYellow LoosestrifeCommon MilkweedSunflowerPinweedBlazing StarFalse LoosestrifeEvening PrimroseNodding .Ladies'-tresses OrchidSand VioletSEDGESSedgeScouring RushMOSSESMossHaircap MossBare soilLitterScientific NameQuorcus velutinaSa-lixsp.Salix !am4daloideaSax humtills9=ax carolInianaRosa sp.Ru-Fus alleghenensisPoa pratensisSopoo prusAn roooqon _erardiSorghastrum nutansSpartina pectinaTeBromus sp.Bromus inermisPanIcum spRexia virginicaAster eilosusEuthamia gymnospe desTa hrosia virgi I. MideAster linaritfoliusRTumex acetoSella_____ia artemisiifoliaCroton glandulosaAmorpha canescensAster azureusSýerU7canadensisS I'da sp.Aureo.ara pedicularisSmilacina stellateEuphorbia corolia acepee a Ea2t-atsOxalis sp.Asclspias verticillataAntennaria plantaginifoliaAster sp.Ca-'sa fasciculataAstrersp.He=anthemum bicknelliLechea tenuifoliaULit- aermum canescenspmachia teestiAsleiiaS 3riacaHelianthus mollieLechea minorL stri sp.L sp.Oenothera sp.Spiranthes cernusV-iola fimbriatulaCarex sp.Eq`isetum hyemaleNumber of FrequencyOccurrenceh (s)91191610140301168178696432221059055484619191811101085433332222222211111111327.61.61.30.80.13.32.59.76.86.55.80.50.30.30.20.20.28.87.54.64.03.81.61.61.50.90.80.80.70.40.30.30.30.30.30.20.20.20.20.20.20.20.20.10.10.10.10.10.10.10.10.30.2UnknownPolytrichum sp.7214118TOTAL 12000.60.21.29.8100.9Note: Based on 1974 fall survey; a line transect method was used. A total of 1200 pointswas sampled.2.2-182 TABLE 2.2-82COMMON HERBACEOUS SPRING PLANTS OF THE RIDGETOPS IN STUDY AREA 2COMMON NAMEGrassAlfalfaRussianThistleWhite SweetCloverBrome GrassAsterRussianOliveRagweedPanic GrassAmericanSycamoreDandelionNUMBER NUMBEROF OFSCIENITIFIC NAME QUADRATS STEMS ABUNDANCE-Graminae 3 272 90.6Medicago sativa 3 31 10.3FREQUENCY60.060.0COVER(M)10.085.0RELATIVEFREQUENCY(%F.15.015.0RELATTVE RELATIVEDENSITY COVER(%D) (%C)50.1 5.65.7 48.0IMPORTANCEVALUE23.622.9L.JSalsola kaliMelilotus albaBromus inermisAster sp.Elacagnus sp.Ambrosia artemisiifoliaPanicum sp.Platanus occidentalisTaraxacum sp.2 141 392 217.039.010.540.0 55.0 10.0 2.520.0 20.0 5.0 7.140.0 0.4 10.0 3.8I.11.03.01.01.01.020.0 5.020.0 0.220.0 0.220.0 0.220.0 0.24 158 39.5 80.0 1.0 20.0 29.1 0.6 16.65.05.05.05.05.00.10.50.10.10.131.011.30.22.80.10.10.10.114.17.84.72.61.91.71.71.799.300~ill0~VE020 542177.2b 100.0 99.2 99.9TOTALNote: Based on 1974 spring survey; five 1-square meter permanent plots were utilized.Figure 2.2-33 illustrates the locations of the plots.aAbundance equals the number of stems divided by the number of quadrat.=in which they occurred.bof the total area surveyed, 62.6% wac bare, and 2.0% was covered by litter. TABLE 2.2-83COMMON HERBACEOUS FALL PLANTS OF THE RIDGETOPS IN STUDY AREA 2NUMBER NUMBEROF OFQUADRATS STEMS ABUNDANCEaIMPORTANCERELATIVE RELATIVE RELATIVE VALUEFREQUENCY COVER FREQUENCY DENSITY COVER / %F+%D+%C(1) ( M {%F) (%D) (%C). k ICOMMON NAME SCIENTIFIC NAMESweet CloverRed TopAlfalfaBrome GrassRussian ThistleGrassPanic GrassFleabaneAmerican SycamoreRussian OliveTOTALMelilotus sp.Triodia sp.Medicago sativaBromus inermisSalsola kaliGraminaePanicum sp.Erigeron canadensisPlatanus occidentalisElaeagnus sp.3 76 25.3 60.0 75.0 18.7 25.0 43.5 29.1131311I1116105105227263311304105.03.352.09.026.03.03.01.01.020.060.020.060.020.020.020.020.020.030.045.020.02.00.10.10.10.10.1172.5b6.218.76.218.76.26.26.26.26.299.534.53.217.18.88.50.90.90.30.399.517.426.111.61.20.10.10.10.10.1100.319.416.011.69.64.92.42.42.22.299.80).00('10tL4EnNote: Based on 1974 fall survey; five 1-square-meter permanent plots were utilized. Figure 2.2-33 illustrates thelocations of the plots.a Abundance equals the number of stems divided by the number of quadrats in which they occurred.b Of the total area surveyed, 55.9% was bare, and 19.7% was covered by litter. TABLE 2.2-84LI-. -- -.. HE -.... -IN STUDY AREA 6IMPORTANCENUMBER NUMBER RELATIVE RELATIVE RELATIVE VALUEOF oF FREQUENCY COVER FREQUENCY DENSITY COVER (%F+D+%CQUADRATS STEMS ABUNDANCEa (S) (S) (IF) (%D) (SC) 3COMMON NAME SCIENTIFIC NAMENUU'White SweetCloverAsterFrostweedBushy EuthamiaGrassPhloxRoseGoat's-beardPanic GrassRussian ThistleSleepy CatchflySmartweedCreepingWood-sorrelRagweedCommon ThistleWild LettuceDandelionPeppercressHorsemintBush CloverHawkweedTOTALMelilotus albaAster sp.Aster pilosusEuthamiaqymnospermoidesGraminaePhlox bifidaRosa sp.Tragopoqon dubiusPanicum sp.Salsola kaliSilene antirrhinaPolyqonwspensylvanicumOxalis corniculataAmbrosiaartemgsiifoliaCirsium sp.Lactuca sp.Taraxacum sp.ELa idiu!dsii lorumMonerada op.Lespedeza capitataHieraciws sp.4423322322213967233368222293183192034.7168.0166.522.674.014.51.56.01.59.510.080.0 80.0 9.730.0 16.0 9.740.0 2.2 4.860.060.040.040.060.040.040.040.025.20.620.010.22.25.22.20.47.37.34.84.87.34.84.84.84.013.31.70.11.00.11.11.214.40.311.45.81.33.01.30.28.67.06.03.63.22.62.42.18.3 45.7 21.240.4 9.1 19.720.0 1.3 8.71 61 61.0 20.0 0.2 2.4 3.6 0.1 2.0 MJ1 14 14.0 20.0 5.0 2.4 0.8 2.9 2.0 0En22I11181195.54.011.09.09.08.02.01.01111419821166040.0 1.240.0 0.420.0 3.020.0 0.220.0 0.220.0 0.220.0 0.220.0 0.2175. 0b4.84.82.42.42.42.42.42.498.90.60.40.60.50.50.40.10.098.70.70.21.70.10.10.10.10.199.92.01.81.61.01.01.00.90.899.2Note: Based on 1974 spring survey; five 1-square-meter permanentlocation of the plots.plots were utilized. Figure 2.2-33 illustrates the& Abundance equals the number of stems divided by the number of quadrats in which they occurred.b Of the total area surveyed, 51.1% was bare, 1.3% was covered by litter, and 1.1% was covered by moss. TABLE 2.2-85TM P-TS P THE RI IN STUDY AREAON FALL 0 E--IMPORTANCENUMBER NUMBER RELATIVE RELATIVE RELATIVE VALUEOF OF FREQUENCY COVER FREQUENCY DENSITY COVER tF÷%D+%CICOMMON NAME SCIENTIFIC NAME QUADRATS STEMS ABUNDANCEa (s) (%) (IF) (ID) (SC)Three-awn Grass Aristida sp. 3 282 94.0 60.0 18.0 9.0 44.3 9.9 21.1Bushy EuthamLa Euthamla 3 68 22.6 60.0 55.0 9.0 10.6 30.4 16.7ovenososrmoidesFrostweed Aster pilosus 3 70 23.3 60.0 18.0 9.0 11.0 9.9 10.0White Sweet Melilotus alba 2 41 20.5 40.0 30.0 6.0 6.4 16.6 9.7CloverhJI71Sweet Clover Melilotus ep. aSmartweed Polygonun IpensylvanicusAster Aster ap. 2Bush Clover Lespedesa capitata ISand Phlox Phlox bifida 1Panic Grass Panicum op. 2Rose Rosa ap. 2Witch Grass Panicuni capillara 1Goldenrod Solidago ap. IWild Lettuce Lactuca op. 1Fleabane Erioeron canadensis 1Russian Thistle Salsola kali 1Wood-sorrel Oxalis ap. ISow-thistle Sonchus Sp. 1Horsetail Asclepias verticillata 1MilkweedGoat's-beard Tragopogon dubius 1Ragweed Ambrosiaart-eosiifolia IEvening Primrose Oenothera ap. ICulver's-root Veroniceastrum 1virgitiL 33TOTAL 33303015132510315197533212263630.0 20.0 20.0 3.0 4.7 11.030.0 20.0 10.0 3.0 4.7 5.57.5 40.0 3.0 6.0 2.3 1.713.0 20.0 7.0 3.0 2.0 3.925.0 20.0 4.0 3.0 3.9 2.29.0 40.0 0.4 6.0 2.8 0.21.5 40.0 4.0 6.0 0.4 2.21.0 20.0 5.0 3.0 0.1 2.85.0 20.0 2.0 3.0 0.7 1.11.0 20.0 3.0 3.0 0.1 1.79.0 20.0 0.2 3.0 1.4 0.17.0 20.0 0.2 3.0 1.1 0.15.0 20.0 0.2 3.0 0.7 0.13.0 20.0 0.2 3.0 0.4 0.13.0 20.0 0.2 3.0 0.4 0.12.0 20.0 0.2 3.0 0.3 0.11.0 20.0 0.2 3.0 0.1 0.12.0 20.0 0.2 3.0 0.3 0.12.0 20.0 0.2 3.0 0.3 0.1181.2b 99.0 99.0 100.06.24.43.33.03.03.02.92.01.61.61.51.41.31.21.21.11.11.11.199.500I0)I.'4EnNotes Based on 1974 fall aurvey; five i-square meter permanent plots were utilized. Figure 2.2-33 illustrates thelocations of the plots.aAbundance equals the number of stems divided by the number of quadrats in which they Occurred.her the total area surveyed, 43.09 was bare, and 23.3% was covered by litter. TABLE 2.2-86COMMON HERBACEOUS SPRING PLANTS OF THE RIDGETOPS IN STUDY AREA 3IMPORTANCENUMBER NUMBER RELATIVE RELATIVE RELATIVE VALUEOF OF FREQUENCY COVER FREQUENCY DENSITY COVER _______)COMMON NAME SCIENTIFIC NAME OUADRATS STEMS ABUNDANCE8 (S) (M) (IF) (%D) (%C)White Sweet Clover Melilotus alba 5 710 142.0 100.0 66.0 14.2 52.0 50.2 38.8Russian Thistle Salsola kali 5 150 30.0 100.0 3.0 14.2 11.0 2.3 9.2Goat's-beard Tragopoqan dubius 4 45 11.2 80.0 12.0 11.4 3.3 9.1 7.9Frostweed Aster pilosus 3 123 41.0 60.0 8.0 8.5 9.0 6.1 7.9Dandelion Taraxacum officianale 3 31 10.3 60.0 15.0 8.5 2.2 11.4 7.4Grass Graminae 4 83 20.7 80.0 1.0 11.4 6.0 0.8 6.1Muhly Grass Muhlenbergia glabriflora 1 42 42.0 20.0 15.0 2.8 3.0 11.4 5.701Horsetail Milkweed Asclepias verticillata 1 126 126.0 20.0 6.0 2.8 9.2 4.6 5.50Ragweed Ambrosia artemisiifolia 3 42 14.0 60.0 1.0 8.5 3.0 0.8 4.1 0Goldenrod Solidago sp. 2 6 3.0 40.0 2.0 5.7 0.4 1.5 2.5DooMoss Unknown 2 2 1.0 40.0 0.2 5.7 0.1 0.2 2.0 I0Milkweed Asciepias sp. 1 2 2.0 20.0 2.0 2.8 0.1 1.5 1.5Panic Grass Panicum sp. 1 1 1.0 20.0 0.2 2.8 0.2 1.0TOTAL 35 1383 131.4b 99.3 99.3 100.1 99.6Note: Based on 1974 spring survey; five 1-square meter permanent plots were utilized. Figure 2.2-33 illustrates thelocations of the plots.aAbundance equals the number of stems divided by the number of quadrats in which they occurred.bof the total area surveyed, 55.9% was bare, and 19.7% was covered by litter. Braidwood ER-OLSTABLE 2.2-87COMMON HERBACEOUS FALL PLANTS OF THE RIDGETOPS IN STUDY AREA 3IMPORTANCENUMBER NUMBER REL R TIV E VALUEOF OF FREQUENCY COVER FREQUENCY DENSITY COVER f(%D+1C'QUADRATS STEMS ABUNDANCE (t) (%) (%p) (%D) (%C)COMMON NAME SCIENTIFIC NAMEWhite SweetCloverUnknownRussianThistleSweetCloverAsterPanic GrassHorsetailMilkweedGoldenrodDandelionGoat's-beardRagweedWitch-grassSand CrotonWingedPigweedFrostweedSow ThistleDandelionThree-awnGrassFleabaneGrassMelilotus albaUnknownSalsola kali9817049.0 40.0 60.0 5.185.0 40.0 0.4 5.118.031.334.2 19.10.2 12.247 15.6 60.033.0 7.6 8.6 18.8 11.7Melilotus op.Aster linariifoliusPanicum sp.Asclepias verticillataSolidago ep.Taraxacum op.Tragopogon dubiusAmbrosia artemisjifoliaPanicum capillareCroton glandulosusCycloloma atriplicifoliumAster pilosusSonchus sp.Taraxacum officinaleAristida op.Erigeron canadensisGraminae3 322 232 3221232328201424127510.611.516.014.010.014.012.04.03.51.63.02.56.05.06.01.03.040.040.020.040.060.040.060.020.040.020.020.06.06.010.02.00.65.01.010.02.04.02.05.15.12.55.17.65.17.62.55.12.52.52.52.52.560.0 10.4 7.640.0 15.0 5.140.0 6.0 5.15.84.25.85.13.62.54.42.21.20.90.50.91.10.91.10.10.55.98.63.43.43.45.71.10.32.90.65.71.12.31.10.10.60.16.46.04.84.54.03.63.53.43.13.02.92.41.51.51.21.11.01 32 51 61 51 61 11 320.0 0.220.0 1.020.0 0.2Squirrel-tailGrass Hordeum jubatumL 1 1.0 20.0 0.2 2.5 0.1 0.1 0.9Close-awnGrassAristida purpurascens13915431.0 20.0 0.2075.2b2.596.80.198.90.1 0.999.7 99.2TOTALNote: Based on 1974 fa1l survey; five I-squarelocations of the plots.meter permanent plots were utilized. Figure 2.2-33 illustrates theaAbundance equals the number of stems divided by the number of quadrate in which they occurred.bof the total area surveyed, 40.8% was bare, and 24.6% was covered by litter.2.2-188 TABLE 2.2-88COMMON HERBACEOUS SPRING PLANTS OF THE RIDGETOPS IN STUDY AREA CIMPORTXNCENUMBER NUMBER RELATIVE RELATIVE RELATIVE VALUEOF OF FREQUENCY COVER FREQUENCY DENSITY COVER %F.%D+%C)QUADRATS STEMS ABUNDANCEa (%) (%) (%F) (1D) (nC) 35 745 149.0 100.0 ý6.4 14.2 36.6 19.1 23.3COMMON NAME SCIENTIFIC NAMEWhite Sweet Clover Melilotus albaAster Aster sp.Horsetail Milkweed Asclepias verticillata00I%toGoldenrodMuhly GrassWild LettuceGoat's-beardDandelionGrassWild GrapePeppercressRagweedFrostweedCommon YarrowCommon ThistleSolidago sp.Muhlenbergia glabri loraLactuca sp.Tragopogon dubiusTaraxacum officianaleGraminaeVitis sp.Lepidium densiflorumAmbrosia artemisiifoliaAster pilosusAchillea millefoliumCirsium sp.3 7205 1323 932 112 414 273 832 681 11 381 31 161 21 535 2035240.026.431.05.520.56.727.634.01.038.03.016.02.05.060.0100.060.040.040.080.060.040.020.020.020.020.020.020.038.2 8.5 35.310.4 14.2 6.420.2 8.5 4.530.4 5.7 0.523.0 5.7 2.011.4 11.4 1.35.6 8.5 4.00.4 5.7 3.310.0 2.8 1.01.0 2.8 1.83.0 2.8 0.10.2 2.8 0.70.2 2.8 0.00.2 2.8 0.2190.6b 99.2 96.720.05.510.615.912.16.02.90.25.20.51.60.10.10.199.921.38.77.97.46.66.25.13.12.71.71.51.21.01.098.70010VEn1TOTALNote: Based on 1974 spring survey; five 1-square meter permanent plotslocations of the plots.were utilized. Figure 2.2-33 illustrates thea Abundance equals the number of stems divided by the number of quadrats in which they occurred.bOf the total area surveyed, 50.3% was bare, 11.4% was covered with litter, and 1.9% was covered by moss. TABLE 2.2-89COMMON HERBACEOUS FALL PLANTS ON THE RIDGETOPS IN STUDY AREA CCOMMON NAMEGoldenrodFleabaneSweet CloverHorsetailMilkweedThree-awn GrassAsterGoat's-beardCommon ThistleFrostweedPrickly LettuceUnknownSand CrotonBrome GrassRagweedSow ThistleWild StawberryWild LettuceMilkweedNUMBER NUMBEROF OFSCIENTIFIC NAME QUADRATS STEMSSolidago sp. 5 237Erigero canadensis 4 204Melilotus sp. 5 245Asclepias verticillata 4 140Aristida sp. 2 213Aster sp. 2 36Tragopogon dubius 2 26Cirsium sp. 2 6Aster pilosus 2 8Lactuca sorriola 2 8Unknown 1 37Croton glandulosus 1 14Bromus sp. 1 14AmbrosiaartemTsiifolia 1 6Sonchus sp. 1 4Fragaria virginiana 1 3Lactuca sp. 1 2Asclepias sp. 1 2IMPORTANCERELATIVE RELATIVE RELATIVE VALUEFREQUENCY COVER FREQUENCY DENSITY COVER +1CýABUNDANCE_ a (L) (s) (%F) (%D) (SC)47.4 100.0 60.0 13.1 19.6 22.7 18.551.0 80.049.0 100.035.0 80.060.0 10.5 16.940.0 13.1 20.342.0 10.5 11.60J106.518.013.03.04.04.037.014.014.06.04.03.02.02.040.040.040.040.040.040.020.020.020.020.020.020.020.020.015.030.01.04.02.01.00.24.02.01.00.20.21.01.0264. 6b5.25.25.25.25.25.22.62.62.62.62.62.6.2.62.699.217.62.92.10.40.60.63.01.11.10.40.30.20.10.198.922.7 16.715.1 16.215.9 12.75.7 9.511.3 6.50.4 2.61.5 2.40.8 2.20.4 2.10.1 1.91.5 1.70.8 1.50.4 1.10.1 1.00.1 1.00.4 1.00.4 1.0100.3 99.6W00.0.to381205TOTALNote: Based on 1974 fall survey; five I-square meter permanent plots werelocations of the plots.utilized. Figure 2.2-33 illustrates the&Abundance equals the number of stems divided by the number of quadrats in which they occurred.bof the total area surveyed, 15.4% was bare, and 33.61 was covered with litter. TABLE 2.2-90COMMON FALL PLANTS OF MARSH-POND AREA 2COMMON NAMEBroad-leaved CattailRushSCIENTIFIC NAMETypha latifoliaJuncus canadensisFREQUENCY(%)100.025.0COMPOSITION(%)75.07.117.9100.0OPEN WATERTOTALr~jNJI-.I-'Note: Vegetation sampled by use of the line transect method from waterline to the endof the vegetation. A total of four transects was sampled (see Figure 2.2-34). Age ofpond is approximately 5 years. TABLE 2.2-91COMMON FALL PLANTS OF THE BANK OF MARSH-POND AREA 2COMMON NAMESCIENTIFIC NAMEHorsetailBroad-leaved CattailSandbar WillowHorsetailBlack WillowtoRagweedCottonwoodAsterRushSpike RushBulrushEquisetum arvenseTypha latifoliaSalix interiorEquisetum hyemaleSalix nigraAmbrosia artemisiifoliaPopulus deltoidesAster sp.Juncus canadensisEleocharis obtusaScirpus sp.FREQUENCY(%)75.075.050.050.050.025.050.050.025.025.025.0COMPOSITION(%)17.213.07.15.34.72.42.41.20.60.60.644.9150.00000.EnSOIL, LITTERTOTALNote: Based on 1974 fall survey on Transect 2 (see Figure 2.2-34). Asampling method was utilized. A total of four transects was analyzed.point intercept TABLE 2.2-92COMMON FALL PLANTS OF THE BANKS OF MARSH-POND AREA 6COMMON NAMEWhite Sweet CloverRagweedBrome GrassAsterSCIENTIFIC NAMEMelilotus albaAmbrosia artemisiifoliaBromus sp.Aster sp.FREQUENCY(%)75.0COMPOSITION(%)16.750.025.025.05.15.11.3SOIL, LITTERTOTAL71.8100.01'NJNote: Based on 1974 fall survey on Transect 6 (see Figure 2.2-35). A point interceptsampling method was utilized. A total of four transects was analyzed. TABLE 2.2-93COMMON FALL PLANTS OF MARSH-POND AREA 6COMMON NAMESmall PondweedIllinois PondweedSandbar WillowWild CelerySCIENTIFIC NAMEPotamogeton pusillusPotamogeton illinoensisSalix interiorVallisneria americanaFREQUENCY(%)75.0100.025.025.0COMPOSITION(%)25.015.81.31.356.6100.0OPEN WATERNTOTALNJ010.0t-10hNote: Vegetation sampled by use of the line transect method from waterline to the endof the vegetation. A total of four transects was sampled (see Figure 2.2-35). Age ofpond is approximately 10 years. TABLE 2.2-94COMMON FALL PLANTS OF MARSH-POND AREA 3FREQUENCY COMPOSITION(M) (M)COMMON NAMEVASCULAR PLANTSIllinois PondweedSago PondweedSmooth SumacSandbar WillowNON-VASCULAR PLANTSSCIENTIFIC NAMEPotamogeton illinoensisPotamogeton pectinatusRhus glabraSalix interior100.050.025.025.025.025.067.71.60.80.82.41.625.1100.0wtz00,I-nAlgaeMusk GrassUnknownChara sp.OPEN WATERTOTALNote: Vegetation sampled by use of the line transect method from waterline to the endof the vegetation. A total of four transects was sampled (see Figure 2.2-36). Age ofpond is approximately 30 years. TABLE 2.2-95COMMON FALL PLANTS OF THE BANKS OF MARSH-POND AREA 3COMMON NAMEWhite Sweet CloverAster.Horsetail MilkweedSandbar WillowBlackberryVelvet LeafGoldenrodCommon RagweedSCIENTIFIC NAMEMelilotus albaAster sp.Asclepias verticillataSalix interiorRubus sp.Verbascum thapsusSolidago sp.Ambrosia artemisiifollaFREQUENCY100.050.050.025.025.025.025.025.0COMPOSITION34.310.07.12.91.41.41.41.440.1100.0SOIL, LITTERTOTALNote: Based on 1974 fall survey on Transect 10 (see Figure 2.2-36). A point interceptanalysis was conducted from the water's edge. A total of three transects was analyzed. TABLE 2.2-96COMMON SPRING PLANTS OF MARSH-POND AREA 9COMMON NAMENarrow-leaved CattailCommon ReedObedient PlantSandbar WillowHorsetailStarry Solomon's SealBlack LocustPeach-leaved WillowKentucky BluegrassWild Strawberry-JSCIENTIFIC NAMETypha angustifoliaPhragmites communisPhysostegia virginianaSalix interiorEquisetum arvenseSmilacina stellataRobinia pseudoacaciaSalix amygdaloidesPoa pratensisFragaria virginianaOPEN WATERTOTALFREQUENCY66.733.333.333.3.33.333.333.333.333.333.3COMPOSITION29.32.42.42.42.41.21.21.21.21.255.1100.000,00.InNote: Vegetation sampled by use of the line transect method from waterline to the end ofthe vegetation. A total of three transects was sampled (see Figure 2.2-36). Aqe of thepond is approximately 30 years. TABLE 2.2-97COMMON FALL PLANTS OF MARSH-POND AREA 9FREQUENCYM_// -COMMON NAMEVASCULAR PLANTSNarrow-leaved CattailCommon ReedIllinois PondweedBlack LocustSmooth SumacNON-VASCULAR PLANTSMusk GrassSCIENTIFIC NAMETypha angustifoliaPhragmites communisPotamogeton illinoensisRobinia pseudoacaciaRhus glabra50.025.025.025.0.25.025.0COMPOSITION17.88.93.01.01.09.958.4100.0CJI-00,000.0nChara sp.OPEN WATERTOTALNote: Vegetation sampled by use of the line transect method from waterline to the endof the vegetation. A total of four transects was sampled (see Figure 2.2-36). Age ofpond is approximately 30 years. TABLE 2.2-98COMMON SPRING PLANTS OF THE BANKS OF MARSH-POND AREA 9COMMON NAMELittle BluestemObedient PlantGoldenrodHorsetailSolomon's SealWild GrapeHorsetail MilkweedPeach-leaved WillowCompass PlantCottonwood (seedling)Sweet CloverStarry Solomon's SealWild RoseSmooth SumacCanadian ThistleMeadowsweetLove GrassSCIENTIFIC NAMEAndropogon scopariusPhysostegia virginianaSolidago sp.Equisetum arvensePolygonatum commutatumVitis vulpinaAsclepias verticillataSalix amySdloidesterebinthinaceumPopulus deltoidesMelilotus sp.Smilacina stellataRosa sp.Rhus glabraCirsium arvenseSpiraea albaEragrostis capillarisFREQUENCY33.333.366.733.333.333.333.333.333.333.333.333.333.333.333.333.333.3COMPOSITION8.35.65.65.65.65.65.62.82.82.82.82.82.82.82.82.82.830.1100.0!jSOIL, LITTERTOTALNote: Based on 1974 spring survey, Transect 9 (see Figure 2.2-36). A point inter-cept analysis was conducted from the water's edge. A total of three transects wasanalyzed. TABLE 2.2-99COMMON FALL PLANTS OF THE BANKS OF MARSH-POND AREA 9COMMON NAMEBroom-sedgeHorsetailHorsetail MilkweedSilky DogwoodQuaking AspenWhite Sweet CloverSmooth SumacWild GrapeTwisted-stalk LilySpike RushBlackberryC10)N)00JSCIENTIFIC NAMEAndropogon virginicusEquisetum hyemaleAsclepias verticillataCornus amomumPopulus tremuloidesMelilotus albaRhus glabraVitis sp.Streptopus roseusEleocharis obtusaRubus sp.BARE, LITTERTOTALFREQUENCY50.025.025.025.025.025.025.025.025.025.025.0COMPOSITION18.95.75.75.73.83.83.83.81.91.91.943.1100.0000W~Note: Based on 1974 fall survey on Transect 9 (see Figure 2.2-36). A point interceptsampling method was used. A total of four transects was analyzed. TABLE 2.2-100COMMON SPRING PLANTS OF MARSH-POND AREA CFREQUENCYCOMMON NAMEVASCULAR PLANTSSmall PondweedNarrow-leaved CattailCommon ReedAmerican BulrushSago PondweedNON-VASCULAR PLANTSMusk GrassSCIENTIFIC NAMEPotamogeton pusillusTypha angustifoliaPhragmites communisScirpus americanusPotamogeton pectinatus66.766.733.333.333.333.3COMPOSITION17.213.111.12.01.01.052.4100.000NJ!)NJChara sp.OPEN WATERTOTALNote: Vegetation sampled by use of the line transect method from waterline to the end ofthe vegetation. A total of three transects was sampled (see Figure 2.2-37). Age of thepond is approximately 30 years. TABLE 2.2-101COMMON FALL PLANTS OF MARSH-POND AREA 9COMMON NAMEVASCULAR PLANTSIllinois PondweedCattailBulrushAmerican BulrushSmall PondweedWater-milfoilWater-plantainNON-VASCULAR PLANTSMusk GrassSCIENTIFIC NAMEPotamogeton illinoensisTypha latifoliaScirpus sp.Scirpus americanusPotamogeton pusillusMyriophyllum sp.Alisma sp.FREQUENCY50.075.025.025.025.025.025.075.0COMPOSITION16.210.89.94.51.80.90.918.037.0100.00000;oChara sp.OPEN WATERTOTALNote: Vegetation sampled by use of the line transect method from waterline to the end ofof the vegetation. A total of four transects was sampled (see Figure 2.2-37). Age ofthe pond is approximately 30 yearS. TABLE 2.2-102COMMON FALL PLANTS OF THE BANKS OF MARSH-POND AREA CCOMMON NAMECattailCommon ReedPanic GrassUmbrella SedgeWhite Sweet CloverHorsetail MilkweedWater-plantainBlackberryAsterRagweedSandbar WillowBroom-sedgeBulrushSCIENTIFIC NAMETypha sp.Phragmites sp.Panicum sp.Cyperus flavescensMelilotus albaAsclepias verticillataAlisma sp.Rubus sp.Aster linariifoliusAmbrosia artemisiifoliaSalix interiorAndropogon virginicusScirpus sp.FREQUENCY50.025.025.075.050.025.050.025.075.050.025.025.025.0COMPOSITION22.711.46.85.75.74.54.54.53.43.42.31.11.1NJ0W0001McnBARE, LITTERTOTAL21.8100.0Note: Based on 1974 fall survey on Transect C (see Figure 2.2-37).sampling method was used. A total of four transects was analyzed.A point intercept TABLE 2.2-103COMMON SPRING PLANTS OF THE BANKS OF MARSH-POND AREA CCOMMON NAMESweet CloverNarrow-leaved CattailHorsetail MilkweedHorsetailCommon MilkweedWild GrapeGoat's-beardMuhly GrassGoldenrodAster (seedling)GrassSCIENTIFIC NAMEMelilotus sp.Tpha ngustifoliaAsclepias verticillataEguisetum arvenseAscelpias SyriacaVitis vulpinaTragopogon dubiusMuhlenbergia sp.Solidago sp.Aster sp.GraminaeFREQUENCY(%)66.733.333.333.333.333.333.333.333.333.333.3COMPOSITION(%)19.215.411.53.83.83.83.83.83.83.8W00t'101!CBARETOTAL3.823.5100.0Note: Based on 1974 spring survey, Transect C (see Figure 2.2-37). A point interceptanalysis was conducted from the water's edge. A total of three transects was analyzed. TABLE 2.2-104POND PRODUCTIVITYSTUDY LAKE(Figure No.)2 (Figure 2.2-34)6 (Figure 2.2-35)3 (Figure 2.2-36)9 (Figure 2.2-36)C (Figure 2.2-37)AGE OF STRIP-MINED AREA(years)510,630,.30n,30PRODU5TIVITYa(g 02/m per day)0.250.400.720.700.80M'.31...0tnNote: Productivity standard used for comparison is 3.0 to 4.5 g 02/m2 per day (Goldmanand Wetzel 1963).aProductivity values are an average of three replications, except in study area 2 whereonly one measurement was made (g = grams; 02 = oxygen; and m2= square meter). Braidwood ER-OLSTABLE 2.2-105DOMINANT SPECIES OF STRIP-MINE SPOILS IN ORDER OF DECREASING IMPORTANCESPRINGCOMMON NAME SCIENTIFIC NAMERECENTLY STRIP-MINED AREA (AREA 2)COMMON NAMEGrassGraminaeAlfalfaRussian ThisWhite SweetBrome GrassAsterSTRIPWhiteMINEDSweetAsterFrostweedBushy EuthamGrassPhloxaSTRIP MINEDWhite SweetRussian ThisGoat's-beardFrostweedaDandelionaMedicago sativatle Salsola pestiferClover Melilotus albaBromus inermusAster sp.IN EARLY 1960'S (AREA 6)Clover Melilotus albaAster sp.Aster pilosusia Euthamia gymnospermoidesGraminaePhlox bifida1940'S (AREA 3)Clover Melilotus albatle Salsola pestifera Tragapogon dubiusAster pilosusTaraxicum officinaleGraminae1940'S (AREA C)Clover Melilotus albaAster sp.lkweed Asclepias verticillataSolidago sp.Muhlenbergia glabrifloraLactuca sp.White Sweet CloverRed TopAlfalfaBrome GrassRussian ThistleGrassThree-awned GrassBushy EuthamiaFrostweedWhite Sweet CloverSweet CloverSmartweedaWhite Sweet CloverRussian ThistleSweet CloverAsteraPanic GrassHorsetail MilkweedGoldenrodFleabaneaSweet CloverHorsetail MilkweedThree-awned GrassAsterFALLSCIEN4TIFIC NAMEMelilotus albaTriodia sp.Medicago sativaBromus inermusSalsola pestiferGraminaeAristida sp.Euthamia gymnospermoidesAster pilosusMelilotus albaMelilotus sp.Polygonum pensylvanicumMelilotus albaSalsola pestiferMelilotus sp.Aster linariifoliusPanicum sp.Asclepias verticillataSolidago sp.Erigeron canadensisMelilotus sp.Asclepias verticillataAristida sp.Aster sp.GrassSTRIPWhiteMINEDSweetAsterHorsetail MiGoldenrodMuhlyaWild LettuceaSpecies present during one survey period only.2.2-206 TABLE 2.2-106MAJOR SPECIES OF THE SPOIL RIDGESAND THEIR DISPERSAL AGENTS-JCOMMON NAMERed TopAlfalfaRussian ThistleWhite Sweet CloverBrome GrassThree-awn GrassFrostweedBushy EuthamiaPhloxGoat's-beardDandelionHorsetail MilkweedGoldenrodFleabaneWild LettuceSmartweedBush CloverWild GrapeTriodia sp.Medicago sativaSolsola pestiferMelilotus albaBromus inermisAristida sp.Aster pilosusEuthania gymnospermoidesPhlox bifidaTragapogon dubiusTaraxicum officinaleAsclepias verticillataSolidago sp.Erigeron canadenseLactuca sp.Polygonum pensylvanicumLespedeza capitataVitis sp.SCIENTIFIC NAMEPRIMARY DISPERSALAGENTPlantedPlantedWind -tumblesPlanted.PlantedAnimal furWindWindWindWindWindWindWindWindWindGravityAnimal furBirds, mammalsSECONDARY DISPERSALAGENTSmall mammalsSmall mammalsBirds, small mammalsNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneNoneBirds, small mammalsMammalsNone00'000h TABLE 2.2-107MAJOR SPECIES ASSOCIATED WITH THE MARSH-POND AREASECOLOGY OF THEtJ01COMMON NAMESandbar WillowPeach-leaved WillowBlack WillowCommon ReedNarrow-leaved CattailCommon CattailHorsetailScouring RushCottonwoodMeadowsweetBlack LocustSilky DogwoodSpike RushMusk GrassIllinois PondweedSmall PondweedSaga PondweedWild CeleryAmerican BulrushWater-plantainWater-milfoilSCIENTIFIC NAMESalix interiorSalix amygdaloidesSalix nigraPhraqmites comanunisTypha angustifoliaTypha latifoliaEpuisetum arvenseEquisetws hyemalePopulus deltaidesSpirea albaRobinia pseudoacaciaCornus amomumEleacharis sp.Chara sp.Potomageton illinoensisPotomageton pusillusPotomaqeton pectinatusValisneria americanusScirpus americanusAlisma Sp.Myriophyllum sp.Juncus canadensisOCCURRENCEAll929.C9,C22.92.999992,93,9,CDISPERSAL AGENTwind-tufted achenewind-tufted achenewind-tufted achenewater-achenewind-tufted achenewind-tufted achenewind-sporeswind-sporeswind-tufted achenegravityanimal-seedanimal-fruitwaterwater-sporesHABITATcommon along streamscommon along streamscommon along streamsmarshy groundponds, ditches, wet groundponds, ditches, wet groundshallow water, moist sandysoilsmoist sandy soilsalong streams, ldw.groundmoist groundalmost any bare areamoist groundshallow waterssubmerged in waters of vary-ing hardness (cations ofMq, Ca)00000.CE3,6,9,C6.C3,Cwater/animalswater/animals'water/animals6 water2,C water/animal furC waterC waterquiet watersponds, lakesshallow to deep waters ofponds and lakeslakes of slow moving watersmarshy qround, margins ofponds, lakes, riversditches and wet soils ofpond marginsquiet waters of lakes andpondswet soilsBulrush2 water Braidwood ER-OLSTABLE 2.2-108MAMMALS OBSERVED ON THE BRAIDWOOD SITEDURING THE 1972 THROUGH 1973 SAMPLINGCOMMON NAMEWhite-tailed DeerRed FoxRaccoonBeaverWoodchuckMinkMuskratOpossumStriped SkunkCottontail RabbitGray SquirrelFox Squirrel13-lined Ground SquirrelPlains Pocket GopherMoleMasked ShrewShort-tailed ShrewPrairie VolePine VoleDeer MouseWhite-footed MouseHouse MouseSCIENTIFIC NAMEOdocoileus virginianusVulpes fulvaProcyon lotorCastor canadensisMarmota monaxMustela visonOndatra zibethicaDidelphis marsupialisMephitis mephitisSylvilagus floridanusSciurus carolinensisSciurus nigerCitellus tridecemlineatusGeomys bursariusScalopus aquaticusSorex cinereusBlarina brevicaudaMicrotus ochrogasterPitymys pinetorumPeromyscus maniculatusPeromyscus leucopusMus musculus2.2-209 TABLE 2.2-109MAMMALS IDENTIFIED AT BRAIDWOOD SITE BY OBSERVATION OF ANIMAL OR SIGN AND BY SMALL MAMMAL TRAPPINGSPECIESWhite-tailed DeeraRed FoxeRaccoonaBeaveraWoodchuckaMinkMuskratOpossumsStriped Skunk5Cottontail RabbitaGray SquirrelsFox Squirrel513-Lined Ground SquirrelaPlains Pocket GopherMoleMasked ShrewShort-tailed ShrewPrairie VolePine Vole "'Deer MOusesWhite-footed MOuseaHouse MouseFALLOW CULTIVATEDFIELDS FIELDSW F SpMARSHAREASSp SW Sp SWOODLANDSF Sp SRECENTLY STRIPSTRIP-MINED MINED INAREAS 1960iSFSTRIPMINED IN19504SFSTRIPMINED IN1940lSF W Sp SW SpW S F Sp S F SpO F W Sp SF WFWSFPSSW Sn SFF Ww spSp SH0WSw0S0nF WF W SpFWSp SS F W SFF WF W Sp S F Sp W W SpF S Sp F W Sp SF W Sp S F W Sp SSFW SpSWSpS FWSpSF Sp SNote: Key to season observed is as follows: F=Fall, W=Winter, Sp=Spring, and S=Sunmser.aSpecies observed during one or more seasons on other areas in addition to the ten transects. Braidwood ER-OLSTABLE 2.3-1LOCOMMON SPECIES Or BIRDS FOUND AT THE BRAIDWOOD SITEDURING THE 1972 THROUGH 1973 SAMPLINGCOMMON NANEMallardBlack DuckBlue-winged TealWood DuckMarsh HawkRed-tailed HawkOspreySparrow HawkBobwhiteRing-necked PheasantGreen HeronAmerican BitternLeast BitternSora RailKilldeerUpland PloverSemipalmated SandpiperSolitary SandpiperSpotted SandpiperWoodcookComon TernRock DoveMourning DoveYellow-billed CuckooWhip-poor-willCommon NighthawkTree SwallowBlack and White WarblerNashville WarblerMagnolia WarblerYellowthroatOven-birdChestnut-aided WarblerBlack-throated Green WarblerYellow WarblerPalm WarblerMyrtle WarblerNorthern WaterthruahAmerican RedstartTree SparrowEastern MeadowlarkWestern MeadowlarkRed-winged BlackbirdCommon GrackleBrown-headed CowbirdBaltimore OrioleCardinalRose-breasted GrosbeakIndigo BuntingAmerican GoldfinchRufous-sided TowheeField SparrowSong SparrowSCIENTIFIC NAMEAnas platyrhynchosAnse rubripesAnas discoraAix sponseaCircus cyaneusButeo jamaicensisPandion haliateusFalco sparveriusColinus virginianusPhasianus colchicusButorides virescensBotaurus lentiginosusIxobrychua exiliaPorzana carolinaCharadrius vociferusBartramia longicaudaEreunetis pusillusTringa solitariaActitis maculariaPhilohela minorSterna hirundoColumba liviaZenaidura macrouraCoocczus americanusCamprimulgus vociferusChordeiles minorIridoprocne bLcolorMinotilta variaVermivora ruficapillaDendroics magnoliaGeothlypis trichasSeiurus aurocapillueDendroica pensylvanicaDendroica virensDendroica eetechiaDendroica palmarumDendroica coronetsSelurus noveforacensisSetophaga ruticillaSpzela arboreaSturnella magnaSturnella neglectsAgelaius phoeniceua.Quiscalus quisculaMolothrus aterIcterus galbulaRichmondena cardinalisPheuticus ludovicisnusPasserins cyoneaSpinus triatisPipilo erythrophthalmusSpizella pusillaMelospiza melodia2.2-211 Braidwood ER-OLSTABLE 2.2-110 (Cont'd)COMMON NAMESCIENTIFIC NAMESwamp SparrowWhite-throated SparrowChipping SparrowVesper SparrowGrasshopper SparrowHorse SparrowChimney SwiftBarn SwallowBank SwallowPurple MartinEastern Belted KingfisherYellow-Shafted FlickerRed-headed WoodpeckerHairy WoodpeckerDowny WoodpeckerRed-bellied WoodpeckerEastern KingbirdLeast FlycatcherHorned LarkBlue JayCommon CrowBlack-capped ChickadeeGreat-crested FlycatcherTufted TitmouseBrown CreeperCarolina WrenMockingbirdCatbirdBrown ThrasherRobinVeeryEastern BluebirdRuby-crowned KingletCedar WaxwingStarlingRed-eyed VireoPhiladelphia VireoFox SparrowSlate-colored JuncoMelospiza georgianaZonotrichia albicollisSpizella passerinaPooecetes gramineusAmmodramus savannarumPasser domesticusChaetura pelagicaHirundo rusticaRiparia ripariaProgne subisMegaceryle alcyonColaptes auratusMelanerpes erythrocephalusDendrocopos villosusDendrocopos pubescensCenturus carolinusTyrannus tyrannusEmpidonax minimusEremophila alpestrisCyanocitta cristataCorvus brachyrhynchosParus atricapillusMyiarchus crinitusParus bicolorCerthia familiarisThryotharus ludovicianusMimus polyglottosDumetella carolineusisToxostoma rufumTurdus migratoriusHylocichla fuscescensSialia sialisRegulus calendulaBombycilla cedrorumSturnus vulgarisVireo olivaceusVireo philadelphicusPasserella iliacaJunco hyemalis2.2-212 TABLE 2.2-111BIRDS OBSERVED AT THE BRAIDWOOD SITEDURING FALL, WINTER, SPRING, AND SUMMER SAMPLINGS OF THE 1972 THROUGH 1973 SURVEYFALLOW CULTIVATEDFIELDS FIELDSt'3NL'iIASPECIESMallardBlack DuckBlue-winged TealWood DuckMarsh HawkRed-tailed HawkOspreySparrow HawkBobwhiteRing-necked PheasantGreen HeronAmerican BitternLeast BitternSora RailKilldeerUpland PloverSenupalmated SandpiperSolitary SandpiperSpotted SandpiperWoodcockCommon TernRock DoveF SSSFFRECENTLYMARSH STRIP-MINED STRIP MINED STRIP MINED STRIP MINEDAREAS WOODLANDS AREAS IN 1960'S IN 1950'S IN 1940'SS F SpSW Sp S0.LAU)W SSpSpSp SSSSpSpSSpSp SS F SNote: Key to season observed is as follows: F -Fall, W -Winter. Sp = Spring,and S = Summer. TABLE 2.2-111 (Cont'd)N)I)SPECIESMourning DoveYellow-billed CuckooWhip-poor-willCommon NighthawkTree SwallowChimney SwiftBarn SwallowBank SwallowPurple MartinEastern Belted KingfisherYellow-Shafted FlickerRed-headed WoodpeckerHairy WoodpeckerDowny WoodpeckerRed-bellied WoodpeckerEastern KingbirdLeast FlycatcherHorned LarkBlue JayCommon CrowBlack-capped ChickadeeGreat-crested FlycatcherTufted TitmouseBrown CreeperFALLOW CULTIVATEDFIELDS FIELDSSp Sp SMARSHAREASSRECENTLYSTRIP-MINED STRIP MINED STRIP MINEDWOODLANDS AREAS IN 1960'S IN 1950'sF S Sp sSF SSp SpSSpS.Sp SSWSp-..F S 00S pSP5.S t0t"STRIP MINEDIN 1940'sSp SSSp SSpSpSSp SFSSpSF SF Sp S5pF SSp SS Sp SspWs pS F sp S SpW W S F sp SFSFWSp S FSp SWS F Sp SF W SSpSp TABLE 2.2-111 (Cont'd)NN8FALLOW CULTIVATEDSPECIES FIELDS FIELDSCarolina WrenMockingbirdCatbird SBrown Thrasher SpRobinVeeryEastern BluebirdRuby-crowned KingletCedar Waxwing SStarlingRed-eyed VireoPhiladelphia Vireo 5Black and White WarblerNashville WarblerMagnolia WarblerYellowthroat SOven-birdChestnut-sided WarblerBlack-throated Green WarblerYellow WarblerPalm WarblerMyrtle WarblerNorthern WaterthrushAmerican RedstartMARSHAREASSSpSF SSpSpSpSpSpSpSSp SSp SSp SSpFS F SSpSpS toS 00QaRECENTLYSTRIP-MINED STRIP MINED STRIP MINED STRIP MINEDWOODLANDS AREAS IN 1960's IN 1950's IN 1940'SSp FSp0oaFspSpSpF SpS SpSpSpSp SpSpSpSpFSp TABLE 2.2-111 (Cont'd)fr,!'SPECIESEuropean Tree SparrowEastern MeadowlarkWestern MeadowlarkRed-winged BlackbirdCommon GrackleBrown-headed CowbirdBaltimore OrioleCardinalRose-breasted GrosbeakIndigo BuntingAmerican GoldfinchRufous-sided TowheeField SparrowSong SparrowSwamp SparrowWhite-throated SparrowChipping SparrowVesper SparrowGrasshopper SparrowHorse SparrowFox SparrowSlate-colored JuncoFALLOW CULTIVATED HARSHFIELDS FIELDS AREAS WOODLANDSSpSpRECENTLYSTRIP-MINED STRIP MINEDAREAS IN 1960'SSp SSpSpSp SSp Sp FF SpSp SSpSpSp SSSp SSp Sp SSpSpSF Sp SFSpSpFF SpSSTRIP MINED STRIP MINEDIN 1950'5 IN 1940'Sti)0'r,U)Sp SSpN SF SSp SSpSW SW SpSp Sp SpFSSpSpSFN V FW Braidwood ER-OLSTABLE 2.2-112REPTILES AND AMPHIBIANS OBSERVED AT THE BRAIDWOOD SITEDURING THE 1972 THROUGH 1973 SAMPLINGCOMMON NAMEAMPHIBIANSBlanchard's Cricket FrogNorthern Leopard FrogBullfrogGreen FrogWestern Chorus FrogNorthern Cricket FrogSouthern Leopard FrogAmerican ToadREPTILESPainted TurtleOrnate Box TurtleEastern Painted TurtleSnapping TurtleEastern Yellow-bellied RacerEastern HognoseWestern Fox SnakeSix-lined RacerunnerFive-lined SkinkSCIENTIFIC NAMEAcriS crepitans blanchardiRana pipiens pipiensRana catesbeianaRana clamitans melanotaPseudacris triseriataAcris crepitans crepitansRana pipiens sphenocephalaBufo americanus 'Chrysemys picta marginata x belliiTerrapene ornata ornataChrysemys picta pic2aChleydra serpentinaColuber constrictor flaviventrisHeterodon platyrhinos platyrhinosElaphe vulpina vulpinaChemidophorus sexlineatus sexlineatusEumeces sasciztus2.2-217 Braidwood ER-OLSTABLE 2.2-113INSECTS OBSERVFD AT THE BRAIDWOOD SITDURING THE 1972 THROUGH 1973 SAMPLINConmon NameColeopteraHairy Rove BeetleBlister BeetleLadybird BeetleJune BeetleClick BeetleStag BeetleWhirligig BeetlePyrochroidTiger BeetlesDictyopteraWood CockroachDipteraRobber FlyMosquitoIchneum FlyTachnid FlyCrane FlyHemipteraGreen Stink BugAphidBuffalo TreehopperLeafhopperCottony Cushion ScaleOyster ScaleMilkweed BugSpittlebugMealy ScaleAnnual CicadaHymenopteraSolitary WaspOak Ap']o GallHfovey aceBumblebeeGoldenrod GallElliptical Goldenrod GallSweat BeeBlack AntCornfield AntCarpenter AntYellowjacketIsopteraTermiteLepidopteraFall Cankerworm .Meadow FritillaryWhite-lined SphynxYellow Sulfur ButterflyCommon Sulphur ButterflyMonarch ButterflyTussock MothFall WebwormBanded WollybearCommon Wood Nymph.Question MarkGreat Spangled FritillaryPainted LadyBlack SwallgwtailaSphinx mothNeuropteraGoldeneye LacewingOcthopteraField CricketRed-legged GrasshopperAngular-winged KatydidAmerican GrasshopperBush KatydidOdonataBlackwing DamselflyTen-spot DragonflyDragonflyaNew species during summer survey.EGScientific NameCreophilus op.E¶'icauta sp.Hlpo9amai asp.!!ffl.lFi4aesp.Pseudolucanus sp.(Family : Byrinidae)(Family: Pyrochroidae)Cincindela sp.Cryptocercus sp.Asilidae op.Cule-x ap.Mec-'6"yasa sp.Tachnidaeisp.asp.Acrosternum sp.Apidae sp.Ceresa buballsraphephaes sp.kr s: Sp.Pu cus ap.fTibicen sp.Ammuph lia ap.AmPhWbL"F ips ap.Af~mellfe.raSO-us ieraEVroSta sp.Gnor-moshema sp.Halictus sp.Moomrum ap.Lasius op.Camlonotus sp.sp°ulTermes sp.Aspp!4la pometariaCele-rlo flfltaCol tas efqodde1,T' gfl eDanaus pldippusroaa op.fyphanria cuneaIsla Spayeris cybeiCVanessa sp.pilio polyxenes asteriusChosopa oculataAcheta assimilisj9e 3g6p ul--s ~p.e sp.Schitccrcasp.Scudderia sp.Calopteryx sp.LiBIelu lchelIaAnex sp.U2.2-218 Braidwood ER-OLSTABLE 2.2-114MAMMALS OF THE BRAIDWOOD SITECOMMON NAMEOpossumMasked ShrewShorttail ShrewaMoleRaccoonOtterbMinkaStriped SkunkkaRed FoxGray FoxbWoodchuckThirteen-lined Ground SquirrelGray SquirrelaFox SquirrelPlains Pocket GopheraBeaverDeer MouseWhite-footed MousePrairie VolePine VoleaMuskratHouse MouseaCottontail RabbitWhitetail DeerSCIENTIFIC NAMEDidelphis marsupialisSorex cinereusBlarina brevicaudaScalopus aguaticusProcyon lotorLutra canadensisMustela visonMephitis mephitisVulpes fulvaUrocyon cinereoargenteusMarmota monaxCitellus tridecemlineatusSciurus carolinensisSciurus nigerGeomys bursariusCastor canadensisPeromyscus maniculatusPeromyscus leucopusMicrotus ochrogasterPitymys pinetormOndatra zibethicaMus musculusSylvilagus floridanusOdocoileus virginianusNote: Species with no footnote were observed during both surveys.aspecies observed only during 1972 through 1973 survey.bspecies observed only during 1973 through 1974 survey.2.2-219 TABLE 2.2-115HABITAT IN WHICH MAMMALS WERE OBSERVED ON THE BRAIDWOOD SITEfllMON NAMENINJOpossumMasked ShrewMoleOtterRaccoonRed FoxGray FoxWoodchuckThirteen-lined Ground SquirrelFox SquirrelBeaverDeer Mouse.White-footed MousePrairie VoleMuskratCottontail RabbitWhitetail DeerAGRICULTURALOR WOODLANDSAREASpF SWAREA RECENTLYSTRIP-MINEDAREASTRIP-MINEDIN 1960'sSpWWS FWWWWWFSp SAm.ASTRIP-MINEDIN 1940'sSpF W SW SpF W Sp SN Sp SF W SF SpF W Sp SF W Sp0L-4SSpSp SNSpF wS F W Sp SNote: Key to season observed is as follows: W -winter, Sp = spring, S -sumner, and F = fall. TABLE 2.2-1161974 BRAIDWOOD SMALL-MAMMAL POPULATIONS PER ACRESMALLMAMMALWhite-footedMouseDeer MouseSEASONLate WinterSpringSummerFallLate WinterSpringSummerFallPLANT SITE(Area A)5.5 to 5.755.5 to 7.43.4 to 8.22.7 to 2.90.00.00.00.0HABITATSTRIP MINED1960's(Area 6)0.00.00.00.023.5 to 28.631.0 to 38.214.8 to 15.513.2 to 13.7STRIP MINED1940's(Area 3)0.00.05.52.1 to 2.90.00.02.1 to 2.72.1 to 4.140.00~CRto!-Note: Other Species captured:Area of Plant Site: Masked ShrewArea Strip-Mined (1960's): Prairie VoleArea Strip Mined (1940's): Prairie Vole Braidwood ER-OLSTABLE 2.2-117BIRDS IDENTIFIED ON THE BRAIDWOOD SITE DURING 1974 THROUGH 1975 SAMPLINGCOMMON NAMEPied-billed GrebeCanada GooseBlue GooseMallardPintailBlack DuckBlue-winged TealGreen-winged TealAmerican WidgeonWood DuckRedheadCanvasbackRing-necked DuckLesser ScaupRuddy DuckCommon MerganserHooded MerganserSharp-shinned HawkCooper's HawkRed-tailed HawkRed-shouldered HawkSparrow HawkPigeon HawkRing-necked PheasantBobwhite QuailGreat Blue HeronGreen HeronAmerican BitternAmerican CootKilldeerSolitary SandpiperSpotted SandpiperAmerican WoodcockCommon TernMourning DoveRock DoveYellow-billed CuckooBlack-billed CuckooScreech Owlwhip-poor-willCommon NighthawkChimney SwiftRuby-throated HummingbirdBelted KingfisherCommon FlickerRed-bellied woodpeckerDowny WoodpeckerRed-headed WoodpeckerEastern KiagbirdGreat Crested FlycatcherLeast FlycatcherEastern PhoebeHorned LarkTree SwallowBarn SwallowBank SwallowSCIEXT:FIC NAMEPodilymbus oodicepBranta canadensisChen caerulescensAnas plat'rhychosAnas acutaAnas rubripadiscorsAnas carolinc:sisMareca americanaAix sponsaAythya americanaAythya valisineriaAytha collarisAytha affinisOxyura 3amaicenisiHergus merganserLophodytes cucullatusAccipiter striatusAccipiter cooperiiButeo jamaicensisButeo lineatusFalco sparveriusFalco columbariusPhasianus colchicusColinus virginianusArdea herodiasButorides virescensBotaurus lentiginosusFulica americanaCharadrius vociferusTringa solitariaActitis maculariaPhilohela minorSterna hirundoZen.ida macrouraColumba liviaCoccvzus americanusCoccvzus minorOtus asioCaprimulgus vociferusChordeiles minorChaetura pelagic&Archilochus colubrisMegaceryle alcyonColaptes auratusCenturus carolinusDendrocopos pubescensMeLanerpse erythrocophalusTyrannus tyrannusMyiarchus crinitusEmpidona minimusSaoornis epocbuEremOphila alpestrisIridoprocne bicolorIlirundo rusticaR~ijarza, rl.a: r a2.2-222 Braidwood ER-OLSTABLE 2.2-117 (Cont'd)COMMON NAMEPurple MartinBlue JayCommon CrowBrown CreeperHouse WrenCarolina WrenWinter WrenTufted TitmouseBlack-capped ChickadeeCatbirdBrown ThrasherMockingbirdAmerican RobinWood ThrushSwainson's ThrushVeeryGray-cheeked ThrushHermit ThrushEastern BluebirdBlue-gray GnatcatcherRuby-crowned KingletGolden-crowned KingletCedar WaxwingStarlingRed-eyed VireoWarbling VireoPhiladelphia VireoBlack and White WarblerNorthern ParulaNashville WarblerYellow Warbler¥ellow-throated WarblerYellow-rumped WarblerPine WarblerMagnolia WarblerBlack-throated Green WarblerBlackburnian WarblerChestnut-sided WarblerBay-breasted WarblerBlackpoll WarblerPalm WarblerOvenbirdNorthern WaterthrushYellowthroat-Wilson's WarblerCanada WarblerAmerican RedstartHouse SparrowEastern MeadowlarkRed-winged BlackbirdCommon GrackleBrown-headed CowbirdOrchard OrioleNorthern OrioleScarlet TanagerCardinalRose-breasted GrosbeakSCIENTIFIC NAMProgne subiaCyanocitta cristataCorvus brachyrhynchosCerthia familiarisTroglodytes aedonThryothorus ludovicianusTroglodytes troglodytesParu. bicolorParu. atricapillusDumetella carolinensisToxostoma rufumMimus polyglottosTurdus migratoriusHylocichla mustelinaCatharus ustulatusCatharus fuscescensCatharue minusCatharus guttatusSialia sialisPolioptila caeruleaRegulus calendulaRegulus satraaBombycilla cedrorumSturnus vulgarisVireo olivaceusVireo gilvusVireo philadelphicusMniotilta varnaParula americanaVermivora ruficapillaDendroica petechia* Dendroica dominicaDendroica coronataDendroica pinusDendroica magnoliaDendroica virensDendroica fuscaDendroica pensylvanicaDendroica castaneaDendroica atriataDendroica palmarumSeiurus aurocapillusSeivrus noveboracensisGeothlypis trichasWilsonia pusillaWilsonia canadensishaga ruticillaPasser domesticusStrunella magnaAgelaius phoeniceusQuiscalus guisculaMolothrua aterIcterus apuriusIcterus galbulaPiranga olivaceaRichmondena cardinalisPheucticus ludovicianus2.2-223 Braidwood ER-OLSTABLE 2.2-117 (Cont'd)COMMON NAMEEvening GrosbeakIndigo BuntingAmerican GoldfinchDickcisselRufous-sided TowheeGrasshopper SparrowLark SparrowDark-eyed JuncoChipping SparrowField SparrowTree SparrowWhite-crowned SparrowFox SparrowSong SparrowVesper SparrowSCIENTIFIC NAMEHesperiphona vespertinaPasserina cyaneaSpinus tristisSpiza americanaPipilo erythrophthalmusAmmodramus savannarumChondestes grammacusJunco hyemalisSpizella passerinaSpizella pusillaSpizella arboreaZonotrichia leucophrysPasserella iliacaMelospiza melodiaPooecetes gramineus2.2-224 Braidwood ER-OLSTABLE 2.2-118BIRDS OBSERVED ON THE BRAIDWOOD SITE BUT NOTIDENTIFIED IN THE 1973 ENVIRONMENTAL REPORTCOMMON NAMEPied-billed GrebeCanada GooseBlue GoosePintailGreen-winged TealAmerican WidgeonRedheadCanvasbackRing-necked DuckLesser ScaupRuddy DuckCommon MerganserHooded MerganserSharp-shinned HawkCooper's HawkRed-shouldered HawkPigeon HawkGreat Blue HeronAmerican CootBlack-billed CuckooScreech OwlRuby-throated HummingbirdEastern PhoebeBrown CreeperCOMMON NAMEHouse WrenWinter WrenWoodthrushSwainson's ThrushGray-cheeked ThrushHermit ThrushBlue-gray GnatcatcherGolden-crowned KingletWarbling VireoNorthern Parula WarblerYellow-throated WarblerPine WarblerBlackburnian WarblerBay-breasted WarblerBlackpoll WarblerWilson's WarblerCanada WarblerScarlet TanagerEvening GrosbeakDickcisselLark SparrowTree SparrowWhite-crowned Sparrow2.2-225 Braidwood ER-OLSTABLE 2.2-119BIRDS OF TRANSECT A -AGRICULTURAL LAND AND WOODED AREAOBSERVATION DATE (month/year)COM04O NAm'E 3174 5/74 8/7E4 !!0+/-74 _/75Canada Goose x.mallard x NWood Duck X xRed-Vailed Hawk xSparrow Hawk xPigeon Hawk XRing-necked Pheasant XBobwhite x xAmerican Woodcock xMourning Dove xYellow-billed Cuckoo xwhip-poor-will xChimney Swift xRuby-throated Hummingbird XBelted Kingfisher xCoammon Flicker X XRed-bellied Woodpecker XDowny Woodpecker X xRed-headed Woodpecker x xEastern Kingbird XGreat Crested Flycatcher xLeast Flycatcher xBarn Swallow xBlue Jay x x KCommon Crow X N XHouse Wren XCatbird xBrown Thrasher x XAmerican Robin x XSwainson's Thrush X XEastern Bluebird XRuby-crowned Ringlet XGolden-crowned Kinglet xStarling xRed-eyed Vireo XBlack and White Warbler XNashville Warbler xYellow Warbler xYellow-throated Warbler XYellow-rumped Warbler xMagnolia Warbler x2.2-226 Braidwood ER-OLSTABLE 2.2-119 (Cont'd)OBSERVATIONCOMMON NAMEBlack-throated Green WarblerBlackburnian WarblerChestnut-sided WarblerBay-breasted WarblerBlackpoll WarblerNorthern WaterthrushYellowthroatAmerican RedstartEastern MeadowlarkRed-winged BlackbirdCommon GrackleOrchard OrioleNorthern OrioleScarlet TanagerCardinalRose-breasted GrosbeakEvening GrosbeakIndigo BuntingAmerican GoldfinchRufous-sided TowheeKingfisherDark-eyed JuncoChipping SparrowField SparrowWhite-crowned SparrowFox SparrowSong SparrowVesper SparrowBlack-capped ChickadeexxRI 1K'CxKxKxxx(month/earf/a _4xX1/75KxxxxKxKKKKxKKxKKKxKxKXxXCKx'C2.2-227 Braidwood ER-OLSTABLE 2.2-120BIRDS OF TRANSECT B: WOODED AREACOMMON NAMEYellow-billed CuckooCommon FlickerDowny WoodpeckerBlue JayCommon CrowAmerican RobinHermit ThrushRed-winged BlackbirdBrown-headed CowbirdImdigo BuntingAmerican GoldfinchDark-eyed JuncoOBSERVATION DATE (month/year)3/74 5/74 8/74 9/74 10/74 1/75xx x xx x xx x x xx x x xxxxxxxxxxxxx2.2-228 Braidwood ER-OLSTABLE 2.2-121BIRDS OF TRANSECT C: AREA STRIP'-MINED IN 19401SCOMMON NAMEPied-billed GrebeCanada GooseMallardWood DuckRed-tailed HawkSparrow 1lawkBobwhiteGreen HeronAmerican CootKilldeerMourning DoveCommon NighthawkBelted KingfisherCommon FlickerDowny WoodpeckerRed-headed WoodpeckerYellow-shafted FlickerCatbirdBrown ThrasherBlue JayAmerican RobinPalm WarblerRed-winged BlackbirdCommon CrackleBrown-headed CowbirdOrchard OrioleNorthern OrioleCardinalIndigo BuntingAmerican GoldfinchRufous-sided TowheeSong SparrowOBSERVATION DATZ (month/ ear)§L74 7/74 B 74 9 743/74 5/74x xx10/74 1/75xxxxxxx xxxx *xxxxx xxxxxxxxxxxxxxxxx Xx xxxx xxx xxx xxxx2.2-229 Braidwood ER-OLSTABLE 2.2-122BIRDS OF TRANSECT 2: AREA STRIP-MINED RECENTLYOBSERVATION DATE (month/year)COMMON NAMEPied-billed GrebeCanada GooseBlue GooseMallardLesser ScaupSharp-shinned HawkRed-tailed HawkRed-shouldered HawkSparrow HawkAmerican WoodcockMourning DoveScreech OwlDowny WoodpeckerHorned LarkBarn SwallowBank SwallowComnon CrowWinter WrenHermit ThrushBlue-gray GnatcatcherPalm WarblerRed-winged BlackbirdIndigo BuntingLark SparrowDark-eyed JuncoField SparrowChimney Swift3/74 '5/74 6/74 7/74xxx8/74 9/74 10/74 1/75x xxxxxxxxx x xxx x xxxxxxxx"xxxx xxxxxx xxxxxxxxxxxxxxxx2.2-230 Braidwood ER-OLSTABLE 2.2-123AVIFAUNA OF TRANSECT 3(Area Strip-Mined in 1940's)COMMON NAMEPi,'d-bi2led GIrelh4Canada GooseMallardBlue-winged TealGreen-winged TealWood DuckRedheadRing-necked DuckLesser ScaupRuddy DuckCommon MerganserHooded MerganserCooper's HawkRed-tailed HawkSparrow HawkRing-necked PheasantBobwhiteAmerican BitternAmerican CootKilldeerAmerican woodcockMourning DoveRock DoveYellow-billed CuckooScreech OwlWhip-poor-willCommon NighthawkBelted KingfisherCommon FlickerDowny WoodpeckerEastern KingbirdGreat Crested FlycatcherHorned LarkBarn SwallowBank SwallowPurple MartinBlue JayCommon CrowWinter WrenCatbirdBrown ThrasherAmerican RobinVeeryGray-cheeked ThrushHermit ThrushBlue-gray GnatcatcherGolden-crowned xingletCedar WaxwingStarlingWarbling VireoNorthern Parula WarblerNashville Warbler3/74xXxxxXXxxx4/74xOBSERVATION5/7-4 M/74 En7xN xDATE9/74xxNxxxx9/74+/- 10/7-4 1/75xxxxNxxxXxxNxxxNxxx XX Xx xNN X XN NxxxXxxNxxxx xxxNx xxxxxxxxxN x Nxxx Nx XxxxNN NNNIcNxXX XxX2.2-231 Braidwood ER-OLSTABLE 2.2-123 (Cont'd)OBSERVATION DATECOMMON NAME 3/74 4/74 5/74 -6/74 7/74 8/74 9/74 10/74 1/75Yellow Warbler xYellow-rumped Warbler xMagnolia Warbler xBlack-throated Green Warbler xBlackpoll Warbler XPalm Warbler xYellowthroat xRed-winged Blackbird X X x xCommon Grackle x XBrown-headed Cowbird XOrchard Oriole xNorthern Oriole XCardinal X XIndigo Bunting x x x xAmerican Goldfinch X X XRufous-sided Towhee x xDark-eyed Junco X x x xChipping Sparrow X xField Sparrow x X XSong Sparrow X X xEastern Phoebe XChimney Swift XTree Swallow- xTree Sparrow x2.2-232 Braidwood ER"OLSTABLE 2.2-124BIRDS OF TRANSECT 4: AGRICULTURAL LAND AND WOODED AREAOBSERVATION DATE (montheyear)COMMONNAME I ___4 5/74 8/74 /74/Blue Goose XMallard XAmerican Widgeon XCanvasback XLesser Scaup XRed-tailed Hawk X XCoopers Hawk XGreen Heron XMourning Dove X X XYellow-billed Cuckoo XBlack-billed Cuckoo XCommon Nighthawk XCommon Flicker XRed-bellied Woodpecker XDowny Woodpecker X X X XRed-headed Woodpecker X XHorned Lark X X X XBlue Jay X X X XAmerican Robin XCommon Crow X XBrown Creeper XCatbird XBrown Thrasher XEastern Bluebird XGolden-crowned Kinglet XStarling XRed-eyed Vireo XBlack and White Warbler XNashville Warbler XYellow-rumped Warbler XMagnolia Warbler XBlack-throated Green Warbler XBlackburnian Warbler XChestnut-sided Warbler XBlackpoll Warbler XPalm Warbler XOvenbird XRed-winged Blackbird X X XCommon Grackle XBrown-headed Cowbird XScarlet Tanager XCardinal X XRose-breasted Grosbeak XIndigo Bunting XRufous-aided Towhee X XDark-eyed Junco x X XChipping Sparrow XField Sparrow X X XFox Sparrow XSong Sparrow X2.2-233 Braidwood ER-OLSTABLE 2.2-125BIRDS OF TRANSECT 6: AREA STRIP-MINED IN EARLY 1960'sOBSERVATION DATE (monthA-ar)3/74 5/74 6,74 7/74 8/74 9/74 10/74 1/75COMMON SPECIESMallardSparrow HawkBobwhiteGreat Blue HleronGreen HeronKilldeerSolitary SandpiperSpotted SandpiperAmerican WoodcockCommon TernMourning DoveBelted KingfisherCommon FlickerEastern KingbirdHorned LarkBank SwallowPurple MartinBlue JayCommon CrowBrown ThrasherAmerican RobinBlack and White WarblerYellow-rumped WarblerMagnolia WarblerOvenbirdWilson's WarblerAmerican RedstartRed-winged BlackbirdCommon GrackleBrown-headed CowbirdIndigo BuntingAmerican GoldfinchDickcisselRufous-sided TowheeLark SparrowField SparrowSong SparrowCooper's HawkxxxXx XK xxxxxKxxxKxxxxxxxxxxxxxKxxxxX X X XXxxxxKxxxxKKxKKxKKxx2.2-234 Braidwood ER-OLSTABLE 2.2-1265ANSFIY 5._ AREA TW l940'RLRANSECT 9: AREA STRIP-MINED IN 1940'sCOKNMfN NAMECanada GooseMallardPintailBlack DuckAmerican WiageonWood luckBobwhiteGreat Blue HeronGrean HlronAmerican BitternAmerican CootKilldeerAmerican WoodcockM)urninq DoveRock Doveyo Iiw-Di 1 1.-d CuckooS,:reech Owlwhi p-poor-wi] 1:jnmuron nighthawkBelted KingfisherCo.-mon FlickerX-ny WoodpeckerEastern KingbirdGreat Crested FlycatcherHorned LarkBlue JayTufted TitmouseCatbirdBrown ThrasherAmerican RobinWood ThrushSwainson'e ThrushVeeryRed-eyed VireoNorthern Parula WarblerYellow-rumped WarblerMagnolia WarblerBLack-throated Green WarblerBlackpoli WarblerOvenbirdYellowthroatCanada WarblerAmerican RedstartRed-winged BlackbirdCosmon GrackleBrown-neaded CowbirdOrchard OrioleNorthern OrioleCardinalRosu-breasted GrosbeakIndigo BuntingAmerican GoldfinchRufous-sided TowheeField SparrowSong SparrowPhiladelphia VireoOBSERVATION DATE lqnth/year)3/74 5/74 6/74 7/74 a/74 9/74 /0/74 1/7jN X Xx x x Xxxxxxxxxx XxXXxxxxxxxxxX XxxxxxxxXxxxxX XX Xx xxxxxxxxxxxxxxx xxxxxxxxxxxxKx xxxxxxxXxK X xx xx xxxxx2.2-235 TABLE 2.2-127OUK02a~y~ MWiwTP AVCrq'V1.rrnT~Th PVf DW'OqTV ATwif hMOUTUT7AlM1 AMfl MWWU UVATTW.7Vfnf CT'STUDYSITEAREA OF LAKESTUDIED (ACRES)AGE2 2 to 5 years6 About 10 years4.0411.24VEGETATIONAverage about 20%ground cover. Somegrasses, manyannuals, a fewshrubs, and smalltrees.Total cover 31%.Some trees present,mostly Populus,grasses and annualspredominate.Total cover 75%.Trees common,particularly cotton-wood with somewillow and blacklocust; shrubs alsocommon, particularlysumac and wild plum.AQUATICVEGETATIONSparse; mostlyThy'ya, with someEguisetum, Scirpus,Juncus.Very sparse; someTypha, Potamogeton.Common; Potamogeton,Chara, Eleocharis,Typha, Phragmites.N)Ni3, 9,COver 30 years39C-0.55-3.67-14.69Note: The area of large study lakes reflects only the portion of the lake studied. Braidwood ER-OLSTABLE 2.2-128ALL REPTILE AND AMPHIBIAN SPECIES OBSERVED ON THE BRAIDWOOD SITEDURING 1974 SURVEYCOMMON NAMEEastern Tiger SalamanderWestern Chorus FrogBlanchard's Cricket FrogAmerican ToadGray Tree FrogBullfrogGreene FrogNorthern Leopard FrogWestern Leopard FrogOrnate Box TurtlePainted TurtleCommon Snapping TurtleBlanding's TurtleSpiny Soft-shelled TurtleSix-lined RacerunnerEastern Hognose SnakeEastern Yellow-bellied RacerBullsnakeWestern Fox SnakeEastern Garter SnakeSCIENTIFIC NAMEAmbystoma tigrinum tigrinumPseudacris triseriatatriseriataAcris crepitans blanchardiBufo americanus americanusHyla versicolor versicolorRana catesbeianaRana clamitans melanotaRana pipiens pipiensRana blairiTerrapene ornataChrysemys picta marginataX belliiChelydra serpentinaserpentinaEmydoidea blandingiTrionyx spiniferusCnemidophorus sexlineatussexlineatusHeterodon platyrhinosColuber constrictorflaviventrisPituophis melanoleucus sayiElaphe vulpina vulpinaThamnophis sertalissemifasciataNatrix sipedon sipedonN.-.Northern Water Snake>2.2-237 Braidwood ER-OLSTABLE 2.2-129REPTILES AND AMPHIBIANS OBSERVED ON THE BRAIDWOOD SITEBUT NOT IDENTIFIED THERE IN THE 1973 ENVIRONMENTAL REPORT0COMMON NAMEEastern Tiger SalamanderGray Tree FrogCommon Snapping TurtleBlanding's TurtleSpiny Soft-shelled TurtleEastern Yellow-bellied RacerBullsnakeEastern Garter SnakeNorthern Water SnakeSCIENTIFIC NAMEAmbystoma tigrinum tigrinumHyla versicolor versicolorChelydra serpentinaserpentinaEmydoidea blandingiTrionyx spiniferusColuber constrictorflaviventrisPituophis melanoleucus sayiThamnophis sertalissemifasciataNatrix sipedon sipedon2.2-238 TABLE 2.2-130REPTILE AND AMPHIBIAN SPECIES KNOWN TO OCCUR IN THE VICINITY OFBRAIDWOOD SITE BUT NOT FOUND IN THE 1974 SURVEYSEiCOMMON NAMENorthern Two-lined SalamanderMudpuppySpring PeeperRed-eared TurtleMap TurtleFalse-map TurtleSlender Glass LizardEastern Milk SnakeSmooth Green SnakePlains Garter SnakeMidland Brown SnakeRed-bellied SnakeGrahiam's Water SnakeQueen SnakeKirtland's Water SnakeEastern MassasaugaSCIENTIFIC NAMEEurycea bislineataNecturus maculosusHyla cruciferPseudemys scripta elegansGraptemys geographicaGraptemys p. pseudogeographicaOphisaurus attenuatusLampropeltis triangulumOpheodrys vernalisThamnophis radixStoreria dekayi wrightorumStoreria occipitomaculataNatrix grahamiNatrix septemvittataNatrix kirtlandiSistrurus catenatusW0I-'00n TABLE 2.2-131NUMBER OF TURTLES COLLECTED PER TRAP HOURIN THREE DIFFERENT-AGED AREAS OF THE STUDY SITECOMMON NAMEPainted TurtleSnapping TurtleBlanding's TurtleSpiny Soft-shelled TurtleArea 2 [1968](156)0.0060.0000.0000.000Area 6 [1962](255)0.0000.0000.0000.000Areas 3,9,C [19401(2520)0.040.0030.00080.0004I'000.00nNote: When the area was mined is in brackets, and total number of trap hours is inparentheses. TABLE 2.2-132EGGS PER CLUTCH, CLUTCHES PER YEAR, AND AN1NUAL REPRODUCTIVE POTENTIALOF SIX PAINTED TURTLES AT THE BRAIDWOOD SITESAMPLINGDATE15 Apr 7428 Jun 7428 Jun 7428 Jun 7416 Jul 743 Aug 74ESTIMATEDNUMBER OFCLUTCHES2POTENTIAL CLUTCHESOFENLARGED FOLLICLES2 (7 & 6 follicles)OVIDUCTALEGGSCORPORA LUTEANEW OLD2327771 (5 follicles)7576551652Mean clutch size (based on follicles, eggs, and corpora lutea) = 6 (5-7)Mean number of clutches = 2 (1-3)Reproductive potential = 12 eggs/femaleper year TABLE 2.2-133LENGTH-WEIGHT RELATIONSHIPS OF STUDYAREA 9 SNAPPING TURTLESINDIVIDUALTAGNUMBER12L8LllR8L8R10L8R1OLlOR12L1IRDATESEX COLLECTEDF 12 May 7328 Jun 74Im 28 Jun 74Im 15 Jul 74F 16 Jul 74M 17 Jul 74Juv 4 Aug 74LENGTH OFCARAPACE(millimeters)257191205258307129ACTUAL WEIGHT(grams)N400016431791,%4000%7000467YNTEMA PREDICTEDWEIGHT(grams)40661117.72159.454111.20668959040.0I'Note: Compared with weights predicted by the formula of Yntema (1970) forNew York and Wisconsin snapping turtles (i.e., weight = 4.586 x 10-4 x L2.80). TABLE 2.2-134RELATIVE ABUNDANCE OF THE SIX-LINED RACERUNM1ER ONSTUDY AREAS 2. 6, 3, AND 9S ITE263DISTANCE IN MILEl8.54. 014.06.0£WALKING INDEXS N.S SEE 950365NO. /MIL0.590.002.570.83TRAP HOURS1860162022802280TRAP INDEXNO. SEEN40114NO./TRAP HOUR0.00220.00000.00480.0018NJN,)NJb0020EnNote: The r-euitTi-- -unAance uf the six-lined racerunner (Cnemidaphflrus sexlineatusi was determined from thewalking index and can traps. Braidwood ER-OLSTABLE 2.2-135INSECTS COLLECTED AUGUST 7, 1974, BY LIGHT TRAPON AN OLD STRIP-MINED AREAORDER SUBORDER SUPERFA!1ILY FA'4ILY StEphemeroptera(Mayflies) EpherieroideaEphemeridaeHeptagenioideaNUMBER OFJ13FAIMILY SPECIMENSa15BaetidaeHydroptilidaeTrichoptera(Caddisflies,water Moths)Coleoptera(Beetles,Weevils)7AdephagaPolyphagaCarabidaeIChrysomeloideaChrysomelidaeHomoptera(Cicadas,Leafhoppers,Aphids)AuchenorrhynchaCicadoideaCicadellidae7Diptera(True Flies) NematoceraTipuloideaCulicoideaTipulidaeChironomidae45NematoceraCulicoideaCeratopogonidaeINote: Major families represented.aper square meter.2.2-244 Braidwood ER-OLSTABLE 2.2-136INSECTS COLLECTED AUGUST 8, 1974, BY LIGHT TRAPON AN OLD STRIP-MINED AREAORDIR SUBORDERTrichoptera(CaddisfliesWater Moths)E:pihemerolitera(Mayflies)NUMBER OFSUBFAMILY SPECIMENSaSUPERFAMlI LY FAMILYHydroptilidae46HeptagenioideaBaetidae31Ilymenoptera(Ants, Bees,Wasps,Sawflies)Coleoptera(feetles,weevils)ScolioideaFormicidae1AdephagaCarabidae1Liptera(TrueFlies)NematoceraCulicoideaTipuloideaCulicoideaPsychodoidea*ChironomidaeTipulidaeCulicidae4871TanyderidaeCulicoideaChaoboridaeMycetophiloideaSciaridae19291CyclorrhaphaChloropoideaPhoroideaChloropidaePhoridae4ematoceraMycetophiloideaCecidomyiidaeINote: Major families represented.aper square meter.2.2-245 Braidwood ER-OLSTABLE 2.2-137INSECTS COLLECTED AUGUST 7, 1974, BY LIGHT TRAPON A RECENTLY STRIP-MINED AREANUMBER OFORDER SUBORDER SUPERFAMILY F'AMILY SUIFAMILY SPECIMENSaTrichoptera(Caddisflies,Water Moths) litydroptilidae 21Leptoceridae 4Ephemeroptera(May Flies)Hemiptera(True Bugs)Homoptera(Cicadas,Leafhoppers,Aphids)IleptagenioideaBaetidae11GeocorizaeMirid'eIAuchenorrhynchaCicadoideaCicadellidae10Diptera(True Flies) NematoceraTipuloideaCulicoidvaMycetophiloideaTipulidaeChironomidaeCccidoniyiidae3+-4361Lepidoptera(Butterflies,Moths)FrenataeNoctuoideaAgaristidae1Note: Major families represented.aper square meter..I2.2-246 Braidwood ER-OLSTABLE 2.2-138INSECTS COLLECTED AUGUST 8, 1974,BY LIGHT TRAP ON A RECENTLY STRIP-MINED AREAORDERColeoptera(Beetles, Weevils)Psocoptera(Booklice, Barklice,Psocids)Thysanoptera(Thrips)SUBORDER SUPERFAMILYNUMBER OFFAMILY SUBFAMILY SPECIMENSaPolyphagaStaphylinoideaStaphylinidae1.EupsocidaTerebrantiaPseudocaeciliidae11Trichoptera(CaddisfliesWater Moths)Ephemeroptera(Mayflies)Diptera(True Flies)Hydroptilidae33HeptagenioideaBaetidaeNematoceraTipuloideaCulicoideaMycetophiloideaTipulidaeChironomidaeCecidomyiidae2-.632Hymenoptera(Ants, Bees, Wasps,Sawflies)ApocritaChalcidoidea1Note: Major familiesaPer square meter.represented.2.2-247 Braidwood ER-OLSTABLE 2.2-139INSECTS COLLECTED IN AUGUST 1974BY SWEEP NET ON STUDY ARE~A 2BY SWEEP NET ON STUDY AREA 2NUMBER OFFAITt.V SURFAMTLY SPECIMENSaORDERNeuroptera'Lacewings,Ant Lions,Mantispids,Snakeflies,Dobsonflies)SURORnEFR SUPFRFAMIrSYPlanipenniaM5'rmeleontoideaMyrmeleontidaeColeoptera(Beetles,Weevils)PolyphagaChrysomeloideaCurculionoideaChrysomelidaeCurculionidaeIIOrthoptera(Grasshoppers,Katydids,Crickets,Roaches,Mantids,WalkingSticks)EnsiferaCaeliferaGryllidaeAcrididaeOecanthinaeaCrytacanthacridinae 18Homoptera(Cicadas,Aphids,Leafhoppers)SternorrhynchaAuchenorrhynchaAphidoideaCicadoideaAphididae4Hemiptera(True Bugs)CicadellidaeMembracidaeCercopidaeMiridaeflcduviidae1410171GeocorizaeNote: Major families represented.aper square meter.2.2-248 Braidwood ER-OLSL'A .31,. ý.2-L40INSECTS COLLECTED [N AUGUST 1974 BYSWEEP NET ON STUDY AREA 3ORDEROrthoptera(Grasshoppers,Katydids, Crickets,Roaches, Mantids,Walking Sticks)SUBORDER SUPERFAMILY FAMILY SUBFAMILYNUMBER OFSPECIMENS88CaeliferaAcrididaeCrytacanth-acridinaeHomoptera(Cicadas, Aphids,Leafhoppers)SternorrhynchaAuchenorrhynchaAphidoideaCicadoideaHemiptera(True Bugs)Odonata(Dragonflies,Damselflies)GeocorizaeAygopteraAphididaeMembracidaeCercopidaeBerytidaeLygaeidaeCoenagrionidae1I112Neuroptera(Lacewings, AntLions, Mantispids,Snakeflies,Dobsonflies)Coleoptera(Beetles, Weevils)Diptera(True Flies)Hymenoptera(Ants, Bees, Wasps,SawEfies)PlanipenniaPo1yphagaHemerobioideaCerambycoideaChrysopidaeICerambycidaeI1AcalyptrataeApocritaScolioideaChalcidoideaApoideaFormicidaePteromalidaeHalictidae421Note: Major families represented.aPer square meter.2.2-249 Braidwood ER-OLSTABLE 2.2-141INSECTS COLLECTED IN AUGUST 1974 BY SWEEP NET ON STUDY AREA 6NUMBER OFORDER SUBORDER SUPERFAMILY FAMILY SUBFAMILY SPECIMENSaOrthoptera(Grasshoppers,Katydids, Crickets,Roaches, Mantids,Walking Sticks)EnsiferaCaeliferaGryllidaeAcrididaeOecanthinae 8Crytacanthacridinae 10Hemiptera(True Bugs)GeocorizaeMiridaeReduviidae61Odonata(Dragonflies,Damselflies)Homoptera(Cicadas, Aphids,Leafhcppers)ZygopteraCoenagrionidae2AuchenorrhynchaCicadoideaMembracidaeCereopidaeCicadellidaeAphididae112StemorrhynchaAphidoideaAuchenorrhynchaFulgoroideaAcanaloniidaeDictyopharidae81Note: Major families represented.aper square meter.2.2-250 Braidwood ER-OLSTABLE 2.2-142INSECTS COLLECTED IN AUGUST 1974 BY SWEEP NET ON STUDY AREA 9NUMBER OFORDER SUBORDER SUPERFAMILY FAMILY SUBFAMILY SPECIMENSaCollembola(Springtails)Entomobryidae 5Hemiptera(True Bugs)Geocorizae'TingidaeCorimelaenidaeLygaeidae111Orthoptera(Grasshoppers,Katydids,Crickets,Roaches,Mantids,WalkingSticks)EnsiferaTettigonidaeConocephalinae3CaeliferaAcrididaeCrytacanthacriditiae3Neuroptera(Lacewings,Ant Lions,Mantispids,Snakeflies,Dobsonflies) PlanipenniaHymenoptera(Ants, Bees,Wasps,Sawflies) ApocritaApocritaHemerobioideaIchneumonoideaIchneumonoideaApoideaChrysopidaeIchneunmonidaeBraconidaeIBraconinae11HalictidaeNote: Major families represented.aper square meter.2.2-251 Braidwood ER-OLSTABLE 2.2-142 (Cont'd)NUMBER OFORDER SUBORDER SUPERFAMILY FAMILY SUBFAMILY SPECIMENSaColeoptera(Beetles,Weevils) PolyphagaChrysomeloideaChrysomelidaeThrsanoptera(Thrips)Homoptera(Cicadas,Aphids,Leafhoppers)11TerebrantiaAuchenorrhynchaSternarrhynchaAuchenorrhynchaDiptera(True Flies)CyelorrhaphaBrachyceraCyelorrhaphaNematoceraCicadoideaAphidoideaFulgoroideaCicadoideaFulgoroideaSyrphoideaEmpidoideaAsiloideaMuscoideaCulicoideaMembracidacAphididaeAcanaloniidaeCicadellidae210192PipunculidaeDolichopodidaeAsilidaeMuscidaeChironomidae45Note: Major families represented.aper square meter.2.2-252 Braidwood ER-OLSTABLE 2.2-143INSECTS COLLECTED ON STUDY AREAS BY SWEEP NETAGE OFSTRIP MINESTUDY AREA (years)MAJORFAMILIESNUMBER OF SPECIMENSPER SQUARE METERIN EACH FAMILY23692 to 5Over 3010Over 3011126112.23.82.920pNote: Figures based on Tables 2.2-139 through 2.2-142.2.2-253 TABLE 2.2-144INVERTEBRATE SPECIES COLLECTED IN CAN TRAPSON STRIP-MINED AREASORDEROrthopteraEphemeropteraColeopteraFAMILYGryllidaeChryomelidaeCarabidalCarabidalCarabidalCicindellidaeBombidaeBombidaeGENUSGryllusChrysochusLarvaeAmphasiaCarabusCicindelaBombusChrysopsSPECIESauratusinterstitialisserratusscuttellarisCOMMON NAMEField CricketMayfly FragmentLeaf BeetleGround BeetlesGround BeetlesGround BeetlesTiger BeetlesBumble BeeDeerflyMU'V-.000,I0(nHymenopteraDiptera0 l4ll11OO9 NOCLIOI GENERATING STATIONIO.OIT9 I & 2!NVIRONMEIMAL REPORT -OPINATING LICENSE STAGEFIGURE 2.2-28GENERALIZED FOOD WEB FORBRAIDWOOD STATION SITE LEGEND:1940's1950's1960 -1962241962 -19651965 -1968 -1968 -1970 2\251970 -1972 2-GRUNDYCOUNTYNOTE:NUMBERS IN 36EACH SQUAREREPRESENTTRACT IDESIGNATIONSAS GIVEN IN ....ILLINOIS.::2*:.ATLAS ANDPLAT BOOKS. .. .... .. .IMILES0 1UEAIDWOOD NUCLEAR GENERATING STATIONUNITS 1 & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 2.2-29AGE OF STRIP MINING IN THEBRAIDWOOD STATION SITE AREA 6 .0 -0!:C - LEGENDUNMINED AREASAGRICULTURE FIELDS(INCLUDES PASTURES)FALLOW FIELDSWOODED AREASOME PLANTED TREES(RESIDENTIAL, CMETRIES,.ORCHARDS, CHRISTMAS L3TREE FARMS)BARE(UNDERGROUND MINE SPOILSAND PITS)STRIP MINE AREAPARTIALLY WOODEDGOOD GROUND-COVER -OCCASIONAL TREESSOME GROUND COVER-TREES WIDELY SCATTERED(MIXED ANNUAL ANDPERENNIAL VEGETATION)MOSTLY BARE(SCATTERED ANNUALSAND SOME RECLAMATIONPLANTINGS)DRAINAGE DITCHES ANDSTREAMSNOTE: NUMBER IN EACH SECTORREPRESENTS LAND TRACTDESIGNATION AS GIVENIN ILLINOIS ATLAS ANDPLAT BOOKS.o -o)rmCm -n>- Pn - YEARS INDICATE AGE OF o/2 1STRIP-MINED AREAS ISCALE OF MILESLEGENDA,B,C "-NEW STUDY AREAS2*, 3*, 4, 6 9* -ESTABLISHED STUDYAREAS-MARSH-POND STUDY AREASBRAIDWOOO NUCLEAR GENERATING STATIONUNITS I a 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 2.2-32SAMPLING AREAS FOR TERRESTRIALBASELINE 1974-1975 SURVEYS .II.... ..... ' fqA100 0 1000SCALE OF FEETWATER D 3URAIDWOOD NUCLEAR GENERATING STATIONWATER .... .' UNITS 1 & 20 PERMANENT PLOT FENVIRONMENTAL REPORT -OPERATING LICENSE STAGEPROPERTY LINE FIGURE 2.2-33TOP OF DIKE-INTERIOR DIKE PERMANENT VEETATIONSTUDY PLOT LOCATIONS 2-4 22-3'-1.-I--'iimii'jellLEGEND0 500 1000SCALE OF FEET-VEGETATIONTRANSECTSBRAIDWOOD NUCLEAR GENERATINO STATIONUNITS I & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 2.2-34MARSH-POND VEGETATION TRANSECTSIN AREA 2 0 300 600SCALE OF FEETLEGEND---VEGETATIONTRANSECTSBRAIIWOOD NUCLEAR GENERA7ING STATIONUNITS 1 & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 2.2-35MARSH-POND VEGETATION TRANSECTSIN AREA 6 STUDY POND 33-A 449-20 300 600LEGEND 1 ý-H LýSCALE OF FEET'- VEGETATIONTRANSECTSBRAIDWOOD NUCLEAR GENERATING STATIONUNITS 1 & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 2,2-36MARSH-POND VEGETATION TRANSECTSIN AREAS 3 AND 9 C- 3C-2C- I0 300 600S C A1 1 1 FSCALE OF FEETLEGEND---VEGETATIONTRANSECTSI111AIWOOD NUCLEAR GENERATING STATIONUNITS 1 I 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 2.2-37MARSH-POND VEGETATION TRANSECTSIN AREA Ci i ii 434241403837as3534333231302725262524a2322cc 215120£alz 171614 E1312109a62 EW S Sm F W S Sm F W S Sm F W S Sm F W S Sm F W S Sm FPlant Site Mined 1040's Mined 1980's Plant Site Mined 1940 's Mined 1960'6DEER MOUSE WHITE-FOOTED MOUSEzL C 0O Interval shown indicates range, of population estimates determined by Schnabel andI Lincoln Indices. Whtefe no animals were captured the estimate Is In the range" :: between zero and lose then one..- -W a winter, S .spring. Sm a summer. F a fall.o :-: C:) cc `z -0Z zLA 4. 0 500 1000SCALE OF FEETLEGENDX- COLLECTING SITEBRAIDWOOD NUCLEAN GENERATING STATIONUNITS I & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 2.2-39MARSH-POND ANIMAL STUDY LOCATIONSIN AREA 2 0 300 600SCALE OF FEETLEGENDX- COLLECTING SITEUCLEAR GENERATING STATIONUNITS 1 & 2REPORT -OPERATING LICENSE STAGIFIGURE 2.2-40MARSH-POND ANIMAL STUDY LOCATIONSIN AREA 6 STUDY PONDSTUDY0 300 600SCALE OF FEETLEGENDX -COLLECTING SITEBRAIDWOOD NUCLEAR GENERATING STATIONUNITS 1 & 2ENVIRONMENTAL REPORT- OPERATING LICENSE STAGEFIGURE 2.2-41MARSH-POND ANIMAL STUDY LOCATIONSIN AREAS 3 AND.9 V/47300 6001 0 300 600SCALE OF FEETII LEGNDCOLLECTING SITEBRAIDWOOD NUCLEAR GENERATING STATIONUNITS I & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 2.2-42MARSH-POND ANIMAL STUDY LOCATIONSIN AREA C STUDY POND 3-STUDYLAKE 9TUDY LAKECLEGENDA,B#X- PAINTED TURTLESC -BLANDING'S TURTLESA_ TURTLE IDENTIFICATIONNUMBER OF TIMES RECAPTUREDO JUNE 27-280 JULY 15-19[] AUGUST 4-8O SEPTEMBER 21-23e- LOCATION OF CAPTURE400Tii0SCALE OF FEETBRAIDWOOD NUCLEAR GENERATING STATIONUNITS I & 2ENVIRONMENTAL REPORT- OPERATING LICENSE STAGEFIGURE 2.2-43TURTLE MOVEMENTS AS DETERMINEDBY RADIO TELEMETRY
IBRAIDWOOD STATIONENVIRONMENTAL REPORTOPERATING LICENSE STAGEVOLUME 2COMMONWEALTH EDISON COMPANY Braidwood ER-OLS AMENDMENT IFEBRUARY 1983establish additional supporting factors for waterfowl feeding andnesting areas.Aquatic mammals, reptiles, and amphibians are also expected toincrease iniipopulation density as a result of the pond formationfor two reasons. First, the pond should provide adequate habitatfor these species, and second, the relatively warm air and watertemperatures may result in increased winter activities.The construction of the essential service water cooling pond andpond screenhouse will have no impact on the local groundwaterregime since the pond and screenhouse will be built within the areasealed off from the sand aquifer by the dike.Dewatering operations consist of pumping only from collectorditches and therefore, do not significantly affect groundwaterlevels. Eight piezometer wells were installed around the BraidwoodStation main building excavation and are being monitored to ensurethat dewatering operations do not affect-local groundwater. De-watering operations have not affected groundwater level or quality(see Subsection 6.1.2).4.1.4 Monitoring Program4.1.4.1 Terrestrial StudiesCECo. conducted 2 years of preconstruction terrestrial monitoringat the Braidwood Station site. The first year (1972-1973) baselineterrestrial surveys began in the fall of 1972 and continued on aseasonal. basis during the winter, spring, and summer of 1973. Theresults and projections of construction impact concluded from these1972 through 1973 studies were included in Subsection 2.7.1 and4.1.5 of the "Braidwood Nuclear Generating Station -Units l&2Environmental Report -Construction Permit Stage" (ER-CPS). Theimpact was assessed in this report and in the "Braidwood FinalEnvironmental Statement" (FES).To augment the 1972 through 1973 baseline survey, a program wasdesigned for the 1974 through 1975 period. The results and conclu-sions presented in the 1974 through 1975 final terrestrial reportfurther support the impact assessment presented in both the ER-CPSand the FES. The 1974-1975 report summaries are included in Sub-section 2.2.5.A comparison of the 1972 through 1973 and 1974 through 1975 ter-restrial survey results indicated no significant differences be-tween these 2 years of baseline monitoring. Similar conclusions4.1-6 Braidwood ER-OLS AMENDMENT 1FEBRUARY 1983resulted in the elimination of a construction-phase terrestrialmonitoring program (see Appendix 4.1A).In order to detect the effects, if any, of filling the Braidwoodcooling pond, a terrestrial monitoring program was developed. Thisprogram consists of vegetation documentation before and after thefilling of the cooling pond. Consequently, any environmental ef-fects that could possibly be due to the filling of the cooling pondwould be detected by the surveys.4.1.4.1.1 Summary of 1979 through 1982 Terrestrial MonitoringCropland is the predominant land use in the vicinity of the Braid-wood Station. Vegetation composed of trees, shrubs and herbaceousplants occurs along roadsides and on the borders of the cropland.For the most part, the cooling pond has utilized the area formerlyused in strip mining. Vegetation around the cooling pond is char-acterized by species which invade disturbed soils. The most promi-nent is cottonwood (Populus deltoides).During the 1979 survey most crops were either harvested or wereready for harvesting. In the following surveys (1980, 1981, 1982)crops were in their late maturation stage.The surveys indicate insect damage and a number of common plantdiseases on the roadside vegetation. None of the diseases areattributed to activities associated with the station. These dis-eases normally Co-exist with the local plant species to some de-gree. The more representative of the damage and diseases duringthe past four years include spider mite injury, oak wilt, Dutch elmdisease, powdery mildew, tent caterpillars, pine-wood nematode andcanker diseases.The crops in the surrounding area exhibited diseases such as Phyto-phythoria root rot and nutrient deficiencies. Also, some crops hadwater related damage. Monitoring of observation wells in the areaconfirm that the slurry cutoff trench method of seepage controlthat was used for dike construction has been effective, therefore,water seepage from the cooling pond is not a suspected cause ofthis problem. Instead above average rainfall and poor farmingtechniques are more likely responsible.Inside the site boundaries, some vegetation displayed injury re-sulting from soil compaction or physical damage. This is attri-buted to station construction activities. Moreover, other vegeta-tion, both on and outside the site, exhibited inury from naturaloccurring wood rot or storm damage. There were some isolated casesoff of the site where vegetation was injured due to farming opera-tions.4. l-6a Braidwood ER-OLS AMENDMENT 1FEBRUARY 1983None of the above diseases or injuries are considered to have beenexacerbated by the filling of the cooling pond. Furthermore, noneof the vegetation problems occurring outside of the stationboundary are considered to be a result of activities associatedwith Braidwood Station.4. 1-6b Braidwood ER-OLSAMENDMENT 1FEBRUARY 1983APPENDIX 4.1A -TERRESTRIAL MONITORING PROGRAM LETTERSTABLE OF CONTENTSPageMay 30, 1975, Letter: George 3. Pliml toS. Stanley KirslisJuly 3, 1975, Letter: George J. Pliml toS. Stanley KirslisAugust 21, 1975, Letter: Daniel R. Mullerto Byron Lee, Jr.July 13, 1978, Letter: W. F. Naughton toDirector of Nuclear Reactor RegulationAugust 10, 1979, Letter: William H. Regan,Jr. to Cordell Reed4. 1A-14.IA-34. IA-74.1A-94. 1A-1l4.1A-i '"Ad!".. Ihplv (t ,,:,,,1,, ICC.,II'IA,,'b1J Braidwood ER-OLSMay 30, 1975D1. S. Stanley KMr:311iU. S. Nuclear r[cgulatory CommissionWashington, D.C. 20555
Dear Dr. lKirslis:
Commonwealth Edison has recently completed its second yearof pro-construction terrestrial monitoring tit the BraidwoodStation site. In view of the similarity betureon the results ofthe two years of monitoring a rostrictod construction phaseterrestrial monitoring nrogra:a. is being forimilated for the re-mainder of the 1975-197 6 period and thru the 5-year constructionphase of plant devclopuient. Our future plans with respect tothe construction phase aquatic monitoring program will be sub-mitted to you when they are developed.As you know, the 1972-1973 baseline terrestrial surveyat the Braidwood Site began in the fall of 1972 and continuedon a seasonal basis durin, the winter, spring and summer of1973. The results and projections of construction impact con-cluded from those studies for the fall, winter and springsurveys have been included in the Braidwood Station EnvironmentalRleport, Vclume I, pp. 2.7-1 thru 2.7-37 nnd Volume II, pp.4.1-3a thru 4.1-6. Tho impact was assessed in the BraidwoodStation Environmental Report and the Brnidwood FinalEnvironmental Statement. A subsequent sumenr survey confirmedthe minimal environmental impact as described in both thePraldwood Envirornmontal Report and Final Environmental Statement.To augment the 1972-1973 baseline study, a program wasdesigned for the 1974-1975 period. The major study objectivesof the 1974-1975 monitoring program were as follows:a.) Documnent existing biota in recently purchasedareas which w.ere not evaluated during earlierbaseline surveys.b.) Further evalunte the biotic components of areasuhich will be subject to construction activityfor plant and switchyard facilities.c.) Observe annual fluctuation in the biologicaldiversity represented within the site.d.) Expand tho biological data base for predictingimpact:; nssociatcd with the site.The re:sults and £conclusionts presented in the 1974-1975final terrostriasl. report furthor support the assdszm:!cnt of iu-pact as presented in both the Br dwood Station Environients.l4. 1A-I Braidwood ER-OLSDr. KirslinMay 30, 1975Page 2Report and the Final Environmental Statement. From a con-parison of the 1972-1973 final report and the 197L4-1975 finalreport, it is evident that no sign'ificant differencesi existbetween the two years of baseline monitoring. Bocauso the.information obtained during these two years of basolinemonitoring is adequate to predict the possible changes thatmight occur during construiction, the construction phansoterrestrial monitoring program will be modified from its on-site ba5eline zcope. The on-site program will be limitedto monitorin;,g the effects of lake filling. Concurrent withthe start of filling Draidwood Lake, a terrestrial i.ionitoringprogram will be developed so as to detect any significantimpacts r3sultizn! from lake filling. According, "to the presentconstruction schedule this on-site program should conmmencoin October of 1979. In addition, a prograin is beinr for-mulatedat the present time to further study the nrchaeological,geological, hydrological and terrestrial characteriazics ofall of our trmismussion line routes from the Braidwood StationSite to tUh points of conmection with our existing transmissionsystem. ThLis prograin will include a further exainination of thelocation and extent of mnrsh arid swanp areas along our trans-mission corridors and the proximity of prairie area boundariesto the transmission line corridor.As indicated in the first paragraph of this letter, ourplans for the construction phase aquatic monitoring programare presently being developed and will be submitted to you assoon as they are completed. Should you have any questions orconcerns regarding this matter, please do not hesitate tocontact me.Sincerely, (, i, /George J. PlimilNuclear LicensingA dtninistratorGJPsJP:gm4. IA-2 Commonwealth Edison lBrai dwood L:R-OLS/"Wt::;l Ada n!,i Chicaqu. Illmi0.sAddress Reply to: Post Office Box 767Chicago, Illinois 60690July 3, 1975Dr. S. Stanley KiralisU.S. Nuclear Regulatory CommissionWashington, D.C. 20555
Dear Dr. Kirslis:
My letter to you dated May 30, 1975 outlined a constructionphase terrestrial monitoring program for the Braidwood Station site.Based upon our telephone conversation of June 2, 1975, it is myunderstanding that you are in agreement with our requested change,provided the staff at Argonne National Laboratory concurs with ourjudgment concerning the two years of baseline terrestrialmonitoring recently completed.Attached for your information and review are copies of the1972-1973 and 1974-1975 Final Terrestrial Monitoring Reports forthe Braidwood Station site.. These reports were submitted .toCommonwealth Edison by Westinghouse Environmental Systems Department(WESD) on December 3, 1973, and March 31, 1975, respectively. Theypresent a two year detailed characterization of the various bioticcommunity types within and in the vicinity of the site.As was stated in my May 30, 1975 letter, a comparison ofthe 1972-1973 final report and the 1974-1975 final report indicatesno significant differences between the two years of baselinemonitoring. For your convenience, a summary of the 1972-1973 and1974-1975 Final Monitoring is presented below. It points out thesimilarities between the two reports and also highlights the resultsand conclusions of each. Of course, some differences were found andadditional species were identified due primarily to differences insampling area locations.I. FloraBoth reports divide the areas of vegetative study at theBraidwood Site into two broad categories, strip-mined and unminedareas. The reports show that biota in the unmined areas areinfluenced by past agricultural practices and soil type9 whilebiotic density and diversity vary in the mined areas with the age ofthe spoil, the nutritional content and texture of the surface material,the configuration of ridges and the type of reclamation undertaken.Both reports further indicate that unmined woodlands and marsh-pondsin the strip mined area have the most diverse plant life whilerecently mined areas show the least species diversity.4 .1A-3 Braidwood ER-OLSDuring the 1974-1975 Terrestrial Monitoring Study, twenty-three flora species were identified that were not recorded in theBraidwood Station Environmental Report. A list of these speciescan be found in Appendix A, Tables A-l, A-2, A-3 of the 1974-1975Final Terrestrial Monitoring Report.II. FaunaA. MammalsA comparison of the 1972-1973 and 1974-1975 faunalsurveys reflect the general principle that species diversityand populations correlate with vegetation and habitatdiversity. Most species identified on-site follow thispatter with the major exception being small mammal popula-tions on the more recently mined areas.During the 1974-1975 terrestrial monitoring study, twonew species of mammals were identified on-site, the otterand gray fox.B. AvifaunaThe more recently mined areas showed the least diversityand as the diversity of vegetative cover increases over timeon the stripped areas, the diversity of avifauna increases.Species identified during the 1974-1975 survey periods,but not observed during the 1972-1973 survey periods,appear in Appendix B, Table B-5 of the 1974-1975 FinalTerrestrial-Monitoring Report.C. HerpetofaunaThe amphibians and reptiles of the site have beendiscussed in the Braidwood Station Environmental Report,Section 2.7.1.7.2. Appendix 2, Table 3 of the 1972-1973Final Terrestrial Monitoring Report lists the herpetofaunaobserved at the Braidwood Site during 1972-1973. All speciesencountered during the 1974-1975 study but not included inthe Braidwood Environmental Report are listed in Table B-16of the 1974-1975 Final Terrestrial Monitoring Report.An indepth survey of herpetofaunal species during the1974-1975 survey period showed that several behavioral anddevelopmental patterns of some species are noticeably alteredin strip mine areas. Among these altered patterns are sloworgrowth rates and delayed maturity (Painted Turtle, Six-linedRacerunner), smaller average size of mature individuals(Painted Turtle, American Toad), below average reproductivepotential (Painted Turtle) and metamorphosis of larvalamphibians at larger than normal size (Eastern TigerSalamander).4. IA-4 -B- Braidwood ER-OLSThirty-seven species (12 amphibians and 25 reptiles)observed or known to occur on the Braidwood Site are listedin Table B15 and B-17 of the 1974-1975 Final TerrestrialMonitoring Report. All but three of the amphibian specieslisted to occur on-site were observed during the 1974-1975survey period. Conversely, only 12 of the reptilian specieslisted to occur on site were observed during the 1974-1975survey period.D. InsectsResults of two years of terrestrial monitoring indicatethat although a diverse insect population may have occurredin areas of the Braidwood site, historically, strippingactivities have removed adequate habitat thus destroying muchof the esisting population. This becomes obvious whenpopulation comparisons are made between recently strippedareas and non-stripped areas or areas stripped in the 1940's.The older strip mined sites have more families representedwhile the newer sites have most of the specimens representingonly a few families. As in the case of avifauna, areas ofmost recent disturbances illustrate the lowest speciesdiversity and population concentration.The species of insects identified during the 1972-1973terrestrial survey period is presented in Appendix 2, Table 4of the 1972-1973 Final Terrestrial Monitoring Report.Appendix B (Tsbles B-22 thru Table B-30) lists the species ofinsects identified during the 1974-1975 survey period.Insects as an important component of the food web are discussedin Section 2.7.1.7.4 of the Braidwood Station EnvironmentalReport, Volume I.III. Conclusions and Projected Impacts of Site DevelopmentA summary of impacts identified during the 1972-1973 and the1974-1975 study periods is presented in Section 2.2, page 2.7 of thelatter report. The only impacts identified in the second study andnot in the first relate to the design change for the cooling lakewhich involves eliminating most of the deep gullies. This changewas discussed and its impact assessed in testimony presented at theBraidwood environmental hearings in Joliet, Illinois on August 2891974.In summary, the results of two years of baseline monitoringwhich are summarized above were the basis for our decision torestrict the construction phase terrestrial monitoring program. Thesimilarity between the two years of monitoring has led Edison'senvironmental staff and our consultant, Westinghouse EnvironmentalSystems Department (WESD) to believe that no significant newinformation can be obtained by monitoring for a third year. However,4. IA--5 IBraidwood !ER-OLSEdison and WESD have identified a few specific areas which mayrequire additional analysis: waterfowl and prairie areas. As Ihave indicated in my letter to you of Nay 30, 1975 a furtherexamination of the prairie area boundaries to the Braidwoodtransmission line corridors will be conducted as part of ourconstruction phase monitoring program. Also, this program willinclude a further examination of the extent of marsh land and swampareas along our transmission corridors. The required additionalwaterfowl studies will be incorporated into the terrestrial monitoringprogram which will be developed concurrent with the start of lakefilling.If you wish additional information or should there be anyquestions on any of the material contained herein, please do nothesitate to contact me.Sincerely,George J. PlimlNuclear LicensingAdministratorGJP:JRP:dsAttachmentscc: Charles Lunar (ANLs w/att.Edward Daniels (IL) w/att.4. IA-6, UJ1110 5IAII; .Braidwood ER-OLSNUCLEAR' HI i'UI.A1 un'v CuMO.R:;:;IuwWAS11IN(;ION, O. C. 20555AUG 2 1 1375Docket Nos. STN 50-456and STN 50-457Comuiionweal th [disnn CnmpainyATTN: Mr. Lbyrnii L.ou, Jr.Vice Pre:; idcntP. 0. Box 767Chicago, Illinois 60690Gentlemen:In your-letter of May 30, 1975, it is proposed that the terrestrialmonitoring program at the Braidwoed Stati on site bz? limited to monitor-ing the effects of lake filling, which is scheduled to commence in thefall of 1979. The reason given for this change is that no significantdifferences were Found between the results of two y,,.rs of baselinemonitoring ini 1972-1973 and 197,1-1975. A condition of the LW.!A-1 forBraidwood SL.aLi;0iissued on January 14, 1975, relfers Lo the t,'.rrestrialmonitorinci described in Section 6.1.4.1 of the Graid',.:ocd FinalEnvironment,:il Suitement, wheere it is further stated that, "Duringconstruction, cionitoring may be modified to somce extent based on newinfonruation obLtined during the preconstruction study."The staff has exmAined the final reports from the two years of monitor--ing, and has concluded that the results provide an adequate baseline toassess the Lerrustrial impact of station construction. Therefore, thestaff conclud'es Utat the intent of Section 6.1.4.1 will have been'carriedout with no further terrestrial monitoring before 1979. The proposedprogram for monitoring the etfects of lake fill.ing should be submittedfor review by the staff in the fall of 19781. In designing this program,consideraLion should be given to an abbreviated study of the site and4. 1A-7 Commonweal th Edison Compaiiy Braidwood ER-OLSAG ,environs in the spring and summer before lakeoff-site areas should also be included in thelake filling. I,.e shall be pleased to discussabout these and other aspects of the proposedfi 1 lnql .ML..' bo i 000 1qmon i tor i ngp iji9 a f torally 1.11C. L t i oils you 'I y. IhaveSincerely,Daniel R. Muller, Assistant Directorfor Envirom:w.ental Projects.Division of Ruactor Licensingcc: Mr. J.ohn 14. RoweIshain, Lincoln & BooleOne First National Plaza42 nd FloorChicago, Illinois 60690Mr. & Mrs. Frederic R. Bushnell, Jr.Box 34Walnut Hill Farm.Stillman Valley, Illinois 61084Eugene Brassfield, Esq.1107 Rockford Trust Bldg.Rockford, Illinois 61101Illinois State ClearinghouseRoom 103 State HouseSpringfield, Illinois 62706Northeastern Illinois Planning Commission400 W. Madison StreetChicago, Illinois 606064 .1A-8 Braidwood ER-OLS0Commonwealth EdisonOne First Nalional Plaza. Chicago. IllinosAddress Reply to: Post Office Box 767..Chicago, Illinois 60690July 13, 1978Director of Nuclear Reactor RegulationU.S. Nuclear Regulatory CommissionWashington, D.C. 20555AMENDMENT IFEBRUARY 1983
Subject:
Terrestrial Monitoring Programat Braidwood StationNRC Docket Nos. 50-456 and 50-457August 21, 1975 letter from Daniel R.Muller to Byron Lee, Jr. concerningthe Braidwood Station TerrestrialMonitoring ProgramReference (a):
Dear Sir:
In Reference (a), the NRC Staff requested CommonwealthEdison Company to submit for review in the Fall of 1978 a pro-posed program for monitoring the effects of lake filling atBraidwood Station. In accordance with this request, a pre-operational and operational terrestrial monitoring program ishereby submitted for your review. *This program has been tailoredto reflect current land use practices and also informationobtained by terrestrial monitoring between 1973 and 1975.The proposed preoperational phase terrestrial ecologicalmonitoring will consist of a fifteen (15) square mile aerialinfrared photogrammetric program which will be implemented on anannual basis using two scales of photography. A scale of 1" to.500" will be employed for detailed examinations and 1" to 2,000'will be used for a comprehensive mosaic of the Braidwood siteenvirons. Ground truthing would verify or discount suspectedareas as determined by photographic reconnaissance.Program objectives include:(1) Identification of ground cover;(2) Detection of diseased, injured and/orstressed vegetation; and4. 1A-9 Braidwood ER-OLS AMENDMENT IFEBRUARY 1983Commonwealth Edison NRC Docket Nos. 50-45650-457Director of Nuclear Reactor RegulationsPage 2(3) Production of a permanent record ofthe condition, quantity and boundaryof each vegetative community.A readily identified ground cover will enable thestation to monitor the revegetation of the dike perimeter,makeup and blowdown corridor, and station areas. Thisphotographic approach will produce a permanent record of therevegetation progress and the status of vegetation in thefifteen (15) square mile area.The proposed program will commence in the Summer of1979 before lake fill and will terminate one (1) year afterUnit 2 begins commercial operation.Please address additional questions which you may haveto this office,One (1) signed original and four (4) copies of thisletter are provided for your use.Very truly yours,W. F. NaughtonNuclear Licensing AdministratorPressurized Water Reactorscc: Region 1110 NRC4. 1A-10 -. ---.Braidwood ER-OLS AMENDMENT IFEBRUARY 1983UNITED STATESro 1' NUCLEAR REGULATORY COMMISSION" iWASHINGTON. D. C. 20555Docket Nos. STN §-456and STU 50-457 AUG 1 0 1979Commonwealth Edison CompanyATTN: Mr. Cordell Reed 7Vice PresidentP. 0. Box 767Chicago, Illinois 60690Gentlemen:In your letter of July 13, 1978, you submitted for our review a pre-operational terrestrial monitoring program to determine the effects of lakefilling at the Braidwood Station site. Our staff has examined your proposedprogram using aerial infrared photography and finds it satisfactory inmost respects. The staff recommends the following clarifications oralterations to your suggested program:1. Colored infrared film should be used, since it producesmore easily interpreted photographs than black andwhite film.2. The annual photographs should be taken at approximately-the same time of year.3. The program, commencing in the summer of 1979, shouldcontinue for two years after Unit 2 begins commercialoperation.With these modifications, the terrestrial monitoring program outlined in* your letter is approved. A description of the results of the program shouldappear in the Annual Reports for Braidwood Station.Sincerely,4~.. A. 'ooH. Regan, ulr., Acting Assistant Directorfor Environmental Projects & TechnologyDivision of Site Safety andEnvironmental Analysis4. 1 A-11 Braidwood ER-OLSbasic population projection model, used for the 10- to 50-mileregion, were:a. Newton County, Indiana, whose entirely ruralpopulation was assumed to remain constant with time,in accordance with census patterns that reveal thatno significant increase in rural populations can beanticipated;b. Chicago, in Cook County, Illinois, whose populationhas actually experienced a decrease in the lastdecade and was assumed to remain constant at the 1970census level; andc. DuPage County, Illinois, whose townships containingsmall and continually declining rural populationswere assumed to exhibit population growth at the samerate as the county population.6.1.4.3 Ecological ParametersThe Braidwood Station site is of ecological interest sinceseveral different ecological communities are represented: openwoodlands, cultivated and fallow fields, local marsh and pondareas, and an extensive area that has been strip-mined over thepast 30 years and reclaimed to varying degrees. Fieldinvestigations were conducted to characterize the vegetation,bird, mammal, and insect components of the Braidwood Stationsite. The following subsections describe the materials andmethods used during the 1972 through 1973 and 1974 through 1975baseline terrestrial monitoring programs.6.1.4.3.1 Materials and Methods for 1972 through 1973Terrestrial Baseline SurveyA literature review of flora and fauna found on Illinois strip-mine spoils preceded field investigations. County, state, andfederal agencies were contacted for data pertinent to the studyarea. Consideration was given to the possible presence of rareor endangered species on site. Surveys were conducted within theperiods of September and October 1972, January 1973, May 1973,and August 1973 along selected transects, both within and nearthe Braidwood Station site, to determine the important flora andfauna present. Onsite transects are shown in Figure 6.1-5, andall transects are described in Tables 6.1-6, 6.1-7, 6.1-8, and6.1-9.6.1.4.3.1.1 Vegetation SamplingTransects for vegetation analyses were selected to represent thevarious ecological communities. Each type of area noted inSubsection 6.1.4.3.1 was represented by at least one transect.Vegetation surveys were conducted by either line or pointintercept analysis depending on the diversity and amount of cover6.1-35 Braidwood ER-OLSpresent. Fifty-foot sections within the transect were pointanalyzed per inch or per foot; line intercepts were analyzed byrunning inches.Estimates of the number of organisms present depended on themethod of observation. Percent of total cover was estimated forplant species on each transect. Vegetation was analyzed byeither the point or line intercept method along 50-foot segmentsat 150- to 250-foot intervals along each transect. Plant specieswithin 5 feet of the transect line not intercepted duringdetailed analysis were regarded as occasional or localizedspecies.During' the summer survey, understory vegetation was analyzed bythe point-intercept method on all transects except Transect 7,which was in the cultivated field, where a qualitative analysiswas conducted. A fixed-radius plot method was used to study theoverstory vegetation in the woodland areas. Areas studied wereareas strip-mined in the 1940's and woodlands on the BraidwoodStation site undisturbed by strip-mining. A circular plot, 8meters in radius, was established every 50 meters alongestablished Transects 3, 4, 8, and 9. The diameters of the treesthat fell within these circular plots were then measured. Ahypsometer was used to determine height by triangulation, and thedistance from observer to the tree was determined using a rangefinder. From the data obtained, frequency, density, dominance,and an importance value for each overstory species wascalculated.Voucher specimens of all flora observed at the Braidwood Stationsite were separately collected and prepared as herbariumspecimens. These collections were donated to the University ofIllinois Herbarium and are maintained under a special filingsystem for future reference and confirmation.6.1.4.3.1.2 Animal SamplingThe presence of birds was noted by binocular observation, birdcalls, and flight patterns. Mammals at the site were determinedby direct observation (sightings and trapping) and secondaryobservations (droppings, tracks, burrows and lodges, treecuttings, slides, and roadside kills). Insects were noted bydirect observation or from their effects, such as falls or leafdamage. Amphibians and reptiles were noted by trapping, visualobservations, and calls.Small-mammal trapping was conducted continuously for from 2 to 4nights at 50-foot intervals along designated transects. Threetraps were placed at each station within 6 feet of a stationmarker. Trap placement locations within transects were alsoselected to sample physical variations of the locality (e.g.,gullies, slopes, ridges, and open and sheltered areasD°6.1-36 Braidwood ER-OLSAbundance of fauna was estimated using recorded observations andliterature reports of studies conducted in similar or associatedlocalities within Illinois. The number of small mammals presenton the site was estimated by comparing the number caught pertotal trap nights with results of other studies.Turtles were also trapped at several ponds in the area strip-mined in the 1940's and 1950's. Oval net traps baited withsardines wrapped in hardware cloth were placed just below thewater surface and tied with a retaining cord. Traps were checkedat 5-hour intervals. Turtles were permanently marked to identifythe location of capture, and sex, size, and relative age wererecorded.6.1.4.3.2 Materials and Methods for 1974 through 1975Terrestrial Baseline SurveyTo supplement the literature survey conducted during the baselinestudy, a further literature review was undertaken for use in the1974 through 1975 terrestrial baseline survey. This reviewconcentrated on flora and faunal species that typified ordirectly related to the general ecology of the Braidwood Stationsite.The scope of the 1974 through 1975 survey was divided into threefield study types: (a) established transect areas, (b) newtransect areas, and (c) marsh-pond area studies (see Figure6.1-6). Surveys were conducted in March, May, June, July,August, September, and October of 1974 and January of 1975.Area numbers corresponded to transect numbers in the 1972 through1973 terrestrial baseline survey. Transects 1, 7, 8, and 10studied during the 1972 through 1973 baseline survey wereeliminated from the 1974 through 1975 surveys because it wasbelieved they :had been adequately characterized for the purposesof the studies. Although Transect 5 was located offsite, it wasmaintained as a sampling transect during the 1974 through 1975surveys because of waterfowl use of the larger ponds within thisstudy area.6.1.4.3.2.1 Vegetation SamplingFloral surveys were conducted on study areas established duringprevious terrestrial monitoring surveys and on areas notpreviously investigated.Surveys were carried out to measure changes in floral compositionand density and to provide a data base for Braidwood Stationimpact prediction. Herbarium specimens of new species werecollected for the University of Illinois and WestinghouseEnvironmental Systems Department herbariums.6.1-37 Bra idwood ER-OLS6.1.4.3.2.1.1 Established Study AreasSpring and fall surveys were conducted in areas previouslycharacterized during the 1972 through 1973 Braidwood Study.Permanent study plots were located on high ridges in Areas 2, 3,and 6. These areas are expected to remain exposed after pondformation. In each area, five plots of 1 square meter wereplaced on sites with vegetation cover. For each plot, specieswere identified, the number of plants counted, and coverestimated. These data were statistically analyzed to determinerelative frequency, relative density, relative cover, andimportance value for each species (Phillips 1959; Smith 1966).Calculations were conducted as follows:Frequency = Number of plots in which species occurredTotal number of plots surveyedRelative Frequency = Frequency. of a given species X 100Sum of frequencies of all speciesRelative Density = Number of stems of a given species x 100Total number of stems of all speciesRelative Cover = Percent cover of a given species X 100Total percent cover of all speciesImportance Value = Rel. frequency + rel.density + rel. cover3In addition, an estimate of abundance was calculated as follows:Abundance = Number of stems of a given speciesNumber of plots in which species occurredStatistical results were evaluated to provide information onsuccessionary trends. The understanding of these trends, as wellas the knowledge of seed dispersal mechanisms of species present,aided in predicting the development of vegetation on pond islandsand the extent of interaction between this vegetation and theBraidwood Station pond environs. The establishment of certainspecies as primary food sources, especially for waterfowl use,was considered an important aspect of this study.6.1.4.3.2.1.2 New Study AreasWooded and strip-mined areas not previously studied werecharacterized using a variety of vegetative methods. Thelocations of new study areas A, B, and C are illustrated inFigure 6.1-6. On the high ridges of Area C, an area strip minedin the 1940's, permanent study plots were established. Themethods, statistical analyses, and evaluations made wereconsistent with the permanent plot studies of the previouslyestablished study areas, with the exception that 0.5 square-meterplots were analyzed.6. 1-3R Braidwood ER-OLSSpring and fall surveys were also carried out in the woodlands ofArea A using the point intercept sampling method. For the pointintercept method, plant species found at specific intervals alongthe length of a transect are identified. For this study, surveypoints were at 1-foot intervals along a 1200-foot-long transect.Frequency of occurrence for each species was calculated asdescribed previously, and vegetation types were characterized andrelated to seasonal variation and food source availability.A variable-radius plot sampling method was also conducted in AreaA in the fall. This sampling method was used to characterize theoverstory community types of this woodland area. The radius ofeach plot established was 26 feet, 3 inches (8 meters) with plotcenters 50-feet apart. A total of 12 plots were sampled. Thediameter at breast height (dbh) and a calculated height wererecorded for each tree with a dbh greater than I inch within thestudy plot boundaries. Relative frequency, relative density,relative dominance, and an importance value were calculated foreach species identified. Relative frequency and relative densitywere calculated as previously described. Relative dominance andan importance value were calculated as follows:Relative Dominance = Basal area (in feet2) of a given species X 100Total basal area of all speciesImportance value = Rel. frequency + rel.density + rel. dominance3In Area B, the point quarter method was used to characterize theoverstory of this more densely wooded site. Fourteen plots weresampled, each plot 50 feet from the next. The distance from plotcenter and dbh were measured for the nearest tree from center ineach of four 900 quadrants (four trees per plot). Relativefrequency, relative density, relative dominance, and animportance value were calculated for each species identified(Phillips 1959; Smith 1966).Relative frequency, dominance, and an importance value werecalculated as previously described. To calculate mean distance,density, and relative density, the following methods were used:Mean Distance = Sum of all distances measuredNumber of distances measuredTotal Density (total number of trees/acre) = 43,560 squre feet/acre(mean distance) ZRelative Density = Number of stems of a given species X 100Total number of stemsDensity = Total density x relative density6.1-39 Braidwood ER-OLS6.1.4.3.2.1.3 Marsh-Pond Study AreasFall surveys were conducted in the Braidwood Station site marsh-pond study Areas 2, 3. 6, 9, and C using the line transectmethod. Spring surveys were conducted in Areas 9 and C onlybecause the raised water table resulting from high springrainfall prevented further sampling. Area 2 was located in oneof the most recently strip-mined sections of the site, and Areas3 and 6 were on land strip mined in the late 1940's and 1960's,respectively. Area 9 was located on land strip mined in theearly 1940's, and Area C was in a different section of land stripmined in the 1940's.short transect lines originated at the shoreline of thedesignated small ponds in each area, with one transect runningout into the water and the second running upslope toward thenearest ridge. Whenever possible, combined transects were auniform 50 feet in length, but were divided into two components,shore-slope and pond, for adequate characterization. Transectswere occasionally shorter than 50 feet because of excessive waterdepth or the absence of any aquatic plant species. Eighttransects (four pond and four shore-slope) were sampled for eacharea in the fall.Sampling techniques and analyses were the same as those describedfor the transect in Area A, with the plant species, if any,identified at 1-foot intervals along the transect. Analysesinvolved the identification of cover types and seed dispersalmechanisms. Special attention was given to successionary trendsusing comparative analysis of the different aged ponds, and thepresence of certain species were evaluated as important wildlifefoods. This information was used to predict floral developmentalong shorelines and littoral zones of the new Braidwood Stationcooling pond and the effects of the pond on the local wildlifefood web.Primary productivity and respiration of fresh-water plankton weremeasured using the light- and dark-bottle method (Odum 1971) infive strip-mine ponds in the study area. The light- and dark-bottles (250 milliliters each) were suspended 0.5 meter below thewater surface near the bank where the water depth was 2 to 3meters. Plastic jug buoys, used as suspension floats for thebottles, were anchored in place with red clay bricks. Threereplicate bottle sets were filled with water from the 0.5 meterdepth at each pond shortly after sunrise (between 6:30 and 8:30a.m.). When the bottles were set in place, records were made ofinitial dissolved oxygen as well as of water and airtemperatures. The final amounts of oxygen in the light- anddark-bottles were measured when the bottle sets were retrievedfrom the individual ponds 12 hours later. All oxygendeterminations were made with a YSI (Yellow springs Instrument)model 54 dissolved oxygen meter with probe. These 12-hour oxygenfigures were later projected to 24 hours during data reduction.6.1-40 Braidwood ER-OLSLight intensities were also recorded at various times during the2-day sampling period (August 7 through 8, 1974).The strip-mine study ponds, or lakes, sampled at the BraidwoodStation site included those in Transects 2, 3, 6, 9, and Area C.These ponds can be divided into three age groups: 30 year -Areas 3, 9, and C; 10 year -Area 6; and 5 year -Area 2.6.1.4.3.2.2 Animal SamplingFaunal surveys were conducted on study areas established duringbaseline surveys and on areas not previously investigated.Surveys were carried out to monitor fluctuations in animalpopulations and further develop a data base for Braidwood Stationimpact prediction.6.1.4.3.2.2.1 Established Study AreasSmall-mammal surveys were conducted on Areas 3 and 6 duringMarch, May, August, and October of 1974. Live trapping wascontinued for 4 nights during each trap period using 3 x 3 x 10-inch live traps set in a 6 x 6-foot grid. This formed a squaregrid 210 feet on a side containing 36 traps. The area covered bythe grid was 1.46 acres. Animals captured were marked by toe-clipping, and their species, vigor, sex, and weight estimateswere recorded.The population estimates based on live trapping were determinedty two mark-recapture methods: the Lincoln index and the Schnabelmethod of estimating populations (Smith 1966). The Lincoln indexinvolved first capturing, marking, and releasing animals withineach grid during a precensus period and subsequently capturingthe animals again during a census period in each grid. Anestimate of the total population of each grid was then computedfrom the ratio of marked to unmarked individuals. The followingequation was used:N:T::n:t or N T T or nT (6.1-27)t/n-where:T = number of animals marked in the precensus period,t = number of marked animals trapped in the censusperiod,n = total animals trapped in the census period, andN = the population estimate.A variation of the Lincoln index, the Schnabel method,accumulates, captures, and recaptures on a daily basis. Schnabelmethod population estimates were calculated using the following*equation:6.1-41 Braidwood ER-OLSN = ZA x B (6.1-28)Cwhere:A = number of animals trapped,B = number of marked animals in area,C = number of recaptures, andN = the population estimate.Havahart mammal traps (7 x 7 x 30 inches) were placed inlocations along Transects 3 and 6 where larger small mammals werelikely to be captured. Traps were left in place for 2 days. Inaddition, mammal species were identified during walking surveysof Transects 2, 3, 4, 6, and 9 from either actual observations orfrom tracks, scats, dens, and other secondary signs.Birds were seasonally observed on all transects. Particularattention was given to spring and fall migrant waterfowl ontransects with large impoundments. Observations were made whilewalking established Transects 2, 3, 4, 6, and 9, and specieslists were supplemented with identifications made during thecourse of other surveys.Reptile and insect species were recorded when new or importantspecies were noted during the course of other observations.No observations were made on Transects 1, 5, 7, 8, and 10,established during the baseline survey, either because otherstudy locations were substituted or because they had already beenadequtely characterized.6.1.4.3.2.2.2 New Study AreasField investigations were undertaken in areas not previouslystudied in detail, such as recently purchased land and landspecifically identified as Braidwood Station construction areas.In Area A, small-mammal live trapping was carried out on a gridand snap trapping on a transect of 10 stations of three trapseach, each station 50 feet from the next. The snap-trap estimatewas presented as a trap-night index, or the percentage ofcaptures based on the number of traps in the field, using thefollowing equation:I = C (6.1-29))6.1-42 Braidwood ER-OLSwhere:TN = total number of trap nights,C = number of captures, andI = trap night index.Species identification, vigor, sex, and weight estimates wererecorded, and relative densities were calculated. Surveys formammals not included in the other studies were conducted duringwalking surveys of the three new transect areas (A, B, and C).Identifications were made from actual observation of a species orfrom tracks, scats, dens, and other signs. The relativeabundance of each was estimated.Birds were observed seasonally during walking surveys oftransects in the three study areas, with special attention givento species present during spring and fall migration periods.Identifications were made by observing individuals andrecognizing calls. Relative abundance, habitat adequacy forwaterfowl, and seasonal fluctuations were estimated forindividual species.Relative use of the new areas was compared with the use of theareas already studied, and the new food chain relationships wereincorporated into the generalized food web established for theBraidwood Station site.6.1-4.3.2.2.3 Marsh-Pond Study AreasConcentrated herpetofauna studies were carried out on marsh-pondsections of Areas 2,.3, 6, and 9. A variety of methods were usedto survey and census herpetofauna. On all trips through studyareas, the species observed were recorded.In order to quantify results for certain species (particularlylizards), surveys were made on each study site during the Junethrough September trips in 1974. The type and number of eachspecies seen were recorded together with the distance walked (asmeasured by pedometer) on each study site.Traps of various types were also used to quantify results. Cantraps, large juice cans buried in the ground beneath a rock withthe opening at surface level, were buried on four study sites forlizards and insects. Can traps were buried on Areas 3 and 9 inJune 19741 and on Areas 2 and 6 in July 1974. Baited hoop trapsand trammel nets were set in study lakes and ponds for aquaticturtles.Collected specimens.were routinely weighed and measured. Smallspecies were weighed on a triple beam balance, and larger specieswere weighed by means of a spring scale that weighed to thenearest 0.S kilogram. The length of species other than turtles6.1-43 Braidwood ER-OLS AMENDMENT IFEBRUARY 1983was measured from snout to vent with vernier calipers for turtles,length was expressed as the length of carapace and/or length of the-plastron.Several turtles were radio tagged and located during several surveyperiods. Birds within sight of marsh-pond areas were observed andrecorded, and comparative presence of waterfowl and habitat use bywaterfowl were noted. Identifications were made through directobservation and animal calls.Insect abundance and availability as a food source for reptiles,fish, and birds were assessed in the marsh-pond areas nearer theBraidwood Station during summer surveys, using insect nets, lighttraps, and can traps.6.1.4.3.3 Methods for 1979 through 1982Terrestrial Monitoring ProgramThis program involves the analysis of low and high level falsecolor infrared aerial photographs (Cibachrome prints). The aerialphotographs cover about 13 square miles in and around Braidwoodsite which is sufficient to document land usage modifications re-sulting from construction activities.The.photographs are examined for dead or dying foliage caused byinjury or disease which is distinguishable from normal foliage onthe basis of signature differences in the photographs. Also, soilconditions which adversely affect vegetation are also discernible.Once the photographs are analyzed a field examination is made ofsuspected vegetation by a plant pathologist.The 1979 and 1980 surveys were performed before the filling of theBraidwood cooling pond. The 1981 and 1982 surveys were performedafter pond filling. The study concentrated on the area in andaround the cooling pond to determine effects, if any, caused bylake fill.The dates pertaining to the taking of the aerial photographs andthe subsequent field examinations are listed below:Photographs Field ExaminationSeptember 4, 1979 September 28-30, 1979July 17, 1980. September 10, 1980July 10,.1981 August 27, 1981July 23, 1982 August 31, 19826.1.44 Braidwood ER-OLSTABLE 6.1-7OF BRAIDWOOD WINTER BASELINE TERRESTRIAL SURVEY TRANSECTS 1972-1973DESCRIPTIONTRAN-SECT AREANUMBER DESCRIPTIONI. Fallow Field2 RecentlyStrip-mined3 Strip-minedin 1940's4 Uncultivatedwoodlands andSoybean Fields5 Strip-minedin 1950's(offsite area)6 7- to 10-year-old Strip-mined Area7 CultivatedCorn Field(of fsite area)8 UncultivatedWoodlands9 Strip-minedin 1940's10 a M4rshland(offsite area)SAMPLE DESCRIPTIONMam.-10 stations, 3Birds-quantitativenights & qual.Mam.-10 stations, 3 nights & qualBirds-quantitativeMam.-10 stations, 2 nights & qualBirds-quantitativeMam.-10 stations, 3 nights & qualBirds-quantitativeMam.-10 stations, 3 nights @ qualBirds-quantitativeMam.-10 stations, 2 nights & qualBirds-quantitativeMam.-9 stations, 3 nights & qual.Birds-quantitativeMam.-10 stations, 3 nights & qualBirds-quantitativeMam.-10 stations, 2 nights & qualBirds-quantitativeOBOLENGTH(ft)5001000500100050020005001000500100050010004501000500100050010005001000L.L.Mam.-10 stations, 3 nights & qual.Birds-quantitativeaTransects 9 and 10 represent new additions to the survey because ofnew land acquisition and the types of habitat represented.6.1-57 Braidwood ER-OLSTABLE 6.1-8DESCRIPTIONOF BRAIDWOOD SPRING BASELINE TERRESTRIAL SURVEY TRANSECTS 1972-1973TRAN-SECTNUMBERAREADESCRIPTIONSAMPLE DESCRIPTION(A) Fallow Field1(B) Fallow Field(newly plowed)2 RecentlyStrip-mined3 Strip-minedin 1940's4 UncultivatedWoodlands andNewly PlowedSoybean Fields5 Strip-minedin 1950's(offsitearea)6 7- to 10-year-old Strip-mined area7 Newly PlowedCorn Field(offsite area)8 UncultivatedWoodlands9 Strip-minedin 1940's10 Marshland(offsite area)Veg.-point intercept in (A) onlyMam.-10 stations, 2 nights in(A) and (B)Birds-quantitative in (A) and (B)Insects and Herpetofauna-qual. in(A) and (B)Veg.-point interceptMam.-10 stations, 2 nights & qual.Birds-quantitativeInsects and Herpetofauna-qual.Veg.-point interceptMam.-10 stations, 2 nights & qual.Birds and Herpetofauna-quant.Insects-qualitativeVeg.-point interceptMam.-10 stations, 2 nights & qual.Birds-quantitativeInsects and Herpetofauna-qual.Veg.-point interceptMam.-10 stations, 2 nights & qual.Birds-quantitativeInsects and Herpetofauna-qual.Veg.-point interceptMam.-10 stations, 2 nights & qual.Birds-quantitativeInsects and Herpetofauna-qual.Mam.-10 stations, 2 nightsBirds-quantitativeInsects-qualitativeVeg.-point interceptMam.-10 stations, 2 nights & qual.Insects and Herpetofauna-qual.Veg.-point interceptMam.-10 stations, 2 nights & qual.Birds and Herpetofauna-quant.Insects-qualitativeVeg.-point interceptMam.-10 stations, 2 nights & qual.Birds-quantitativeInsects and Herpetofauna-qual.LENGTH(ft)500500200020002000500200020007505003000300012505002000200010005001000100020005001000100050020002000200050020001000500200020001000500200020006.1-58 Braidwood ER-OLSTABLE 6.1-9OF BRAIDWOOD SUMMER BASELINE TrRRESTRIAL SURVEY TRANSECTS 1972-1973DESCRI PT IONDESCRIPTIONTRAN-SECTNUMBERAREADESCRIPTIONFallow Field(2 RecentlyStrip-mined3 Strip-minedin 1940's4 UncultivatedWoodlands.and SoybeanFields5 Strip-minedin 1950's(offsitearea)6 7- to 10-year-old Strip-mined area7 CultivatedCorn andBean Fields8 UncultivatedWoodlands9 Strip-minedin 1940's10 Marshland(offsitearea)SAMPLE DESCRIPTIONVeg.-point interceptMam.-10 stations, 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.Veg.-point interceptMam.-10 stations, 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.Veg.-point intercept, fixed radius plotMam.-10,stations, 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.Veg.-point intercept, fixed radius plotMam.-10 stations , 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.Veg.-point interceptMam.-10 stations, 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.Veg.-point interceptMam.-10 stations, 2 nightsBirds-qualitative .Insects and Herpetofauna-qual.Veg.-qualitativeMam.-10 stations, 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.Veg.-point intercept, fixed radius plotMam.-10 stations, 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.Veg.-point intercept, fixed radius plotMam.-10 stations, 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.Veg.-point interceptMam.-10 stations, 2 nightsBirds-qualitativeInsects and Herpetofauna-qual.LENGTH(ft)45050045045010005001000100073550073573510005001000100012305001230123097350097397350050050050094550094594510005001000100085050o8508506.1-59 -0a 4-mu-z*8 U za-;-4= ~6 --mu-a,*--~.=04a Zo *"a!-)*-z-JI- Cd~CflLmJ W~LmJ ~,.- U,-or-U, ICml I-C.J~CD U,.-I--.-JCD W~ U,0~U,4 YEARS INDICATE AGE OFSTRIP-MINED AREASLEGENDA,B,C -NEW STUDY AREAS2*, 3*, 4, 6*, 9* -ESTABLISHED STUDYAREAS-MARSH -POND STUDY AREAST2iSCALE OF MILESBROI'OWOo NUCLEAR GENERATING STATIONUNITS 1 & 2ENVIRONMENTAL REPORT -OPERATING LICENSE STAGEFIGURE 6.1-6SAMPLING AREAS FOR TERRESTRIALBASELINE 1974-1975 SURVEYS
- 6. Describe all land use practices that may impact water quality.* Activities related to electrical generation such as, traffic and construction activity are typical. However,Best Management Practices are always employed as specified in the site State NPDES/Stromwater Permit.Other activities include the treatment of wastewater which is discharged to the lake and regulated by theState NPDES Permit. Lastly, because the lake is used as cooling water for the station, heated water from thestation is discharged to the lake for cooling.7. Is the site in compliance or working towards compliance with all environmental regulations(including the Clean Water Act, Clean Air Act, and Resource Conservation and Recovery Act if thesite is in the United States)? Applicants must be in compliance or working toward compliance with allrules, regulations, and permits required by law through sound environmental control measures.YES8. If the site has any compliance problems or issues, are habitat enhancement projects separate fromareas with these regulatory/compliance issues?YES*. Were any of the habitat projects done in relation to a mitigation project or similar project requiredby a regulatory agency?NOIf you answered yes to the question above, list which project(s) and describe how the scope of theproject(s) exceeds the regulatory requirements.10. Please list the species that have been observed on your site that are considered endangered/threatened(species that fall under the Federal Endangered Species Act or are state protected/listed species if thesite is in the United States).Bald EaglesIn a partnership with IDNR, Braidwood Station donated $25,000.00 to purchase and deploy buoys around theisland on Braidwood Lake to protect the eagles from boat traffic.The eagles have previously nested on Braidwood Lake but have not been nesting at Braidwood Lake for the lastseveral years. They have been using Braidwood Lake as fishing areas during the winter, but no nesting. Buoyswere put out when the eagles were nesting to keep boaters away, but they remained for only I year after that.About six years ago they moved nearby to the east on an adjacent landowners property. The following year (or perhaps previously) the eagles constructed a nest but did not incubate eggs. They remained over the winter fouryears ago, and were seen brooding eggs. Eaglets were produced that year. At least one eaglet was produced, but'vegetation obscured viewing most of the year. The following year, the adults remained in the area all winterand appeared ready to make another attempt at nesting. The last two years, eagles have been seen off and on,but no apparent nesting attempt.While there may not be current nesting that we are aware of, Braidwood lake is still a very important resourcefor local eagles and osprey, especially in the winter when other area waters are likely frozen.11. Please list any other certifications or awards that apply to the site, including dates received.N/A12. Please list green initiatives that are employed at the facility (e.g., recycling programs, watermanagement, energy efficient lighting, etc.).All following activities are associated with the site's Reduce/Reuse/Recycle Program which is part of thesite Environmental Management System (EMS): Recycling batteries, paper, plastics and boxes that can't beused any longer. Reusing and reducing water use through a site water management program, energyefficient lighting program employed, ozone minimization, chemical control program for wasteminimization.p W ILDLIFE AT WORK RECERTIFICATION(FORM R-J) WILDLIFE HABITAT COUNCIU"*Please carefully review the "WaW Recert -Application Instructions"and "WaW Recert -Application Checklist" documents.Applicants must submit this signed form, along with all of the required application pieces listed in thechecklist document, in order to be considered for recertification. Applications that are incomplete or arepostmarked after the late application deadline will not be considered for recertification in 2013.Required Site Information:Company Name: Exelon Generation, LLCSubsidiary Name (exactly as it should appear on certificate): Exelon NuclearSite Name (exactly as it should appear on certificate): Braidwood Generating StationSite's physical address (including street name, city, state, and zip code):Braidwood Generating Station35 100 South Route 53Braceville, 11. 60407Acres actively managed for wildlife through the Wildlife at Work program: 2640Unmanaged acres available as wildlife habitat: 100Ootal site acres (includes buildings, parking lots, and habitat areas): 4320Total number of employees: 750 Number of employees involved with programs: 10Required Certification Contact Information:Contact name: Brittney O'Connor Title: Environmental SpecialistContact mailing address: Braidwood Generating Station. 31500 South Route 53City: Braceville State/Province: 11Zip code: 60407 Country: United StatesTelephone number: 815/417-3257 Email address:Brittney.OConnor@Exeloncorp.com* 1, the undersigned, do hereby release all rights to photographic materials that serve as part of this application for certification. I fullyauthorize the Wildlife Habitat Council (WHC) to keep and use this material in any manner, including media coverage, slidepresentations, and WHC-inclusive documents, with the understanding that due credit will be given to the photographer and companyresponsible for producing the picture. Further, as it pertains to any images of minors included in my application, I acknowledge thatproper and documented permission has been granted by the parent and/or legal guardian to reproduce the image, withoutcompensation, for any distribution, marketing and/or other activities related to the program. (If needed, Video/Photo Release Formsare available online at http:llwww.wildlifehc.orp/,certification/applv).* I also affirm that all material presented iis apcation is accurate and true to the best of my knowledge.Signature: , -Date:
FIGURE 1. OVERVIEW OF BRAIDWOOD STATION FACILITY'PPOOR QUALITY ORIGINAL -FIGURE 2. OVERVIEW OF BRAIDWOOD STATION COOLING LAKE AND FACILITYI POOR QUALrry ORIGINAL I 2013 REFERENCE INTERVIEWQUESTIONNAIREWILDLIFE HABITAT COUNCIL"2013 Reference Interview Questionnaire to be completed by Wildlife at Work ReferencesThe following questionnaire is to be completed by 3 references who are not employed byyour compoany. If desired, references may send this form directly to the Wildlife Habitat Councilat 8737 Colesville Road, Suite 800, Silver Spring, Maryland, 20910; fax to 301-588-4629; oremail certification@wildlifehc.org.REFERENCES, PLEASE COMPLETE THE FOLLOWING:Your name: Rob MillerYour professional affiliation and/or title: IDNR District Fisheries BiologistYour address: 13608 Fox Road, Yorkville, IL 60560Your phone number: 630.553.6680 Your email: rob.miller@illinois.govName of the corporate wildlife site you are affiliated with (company and site name)aBraidwood LakeYour contact at that site: Ray Hall/John PetroPLEASE ANSWER THE FOLLOWING QUESTIONS. YOU CAN USE ADDITIONALSPACE IF NECESSARY. BE SURE TO TYPE OR PRINT CLEARLY.Question 1) How exactly are you involved with the site's Wildlife at Work program?I have been responsible for management of the Braidwood Lake fish population since 1986.Question 2) Is the program benefiting local wildlife? If so, how and which species? If not,why? I am not certain what is meant by local wildlife as it applies to the fishery. The fishpopulation has gone through a series of trends over time and has evolved into one which canexist and withstand the rigors of a cooling lake environment. Most of the fish species present arenaturally reproducing and recruiting but some are augmented or maintained through stocking. Question 3) Is the program benefiting the local community? If so, how? If not, why?* Based on the results of the most recent formal angler creel survey, anglers traveled an average of28 miles to fish Braidwood Lake, expending an estimated 45 hours of angling pressure per acre.The local economies have benefitted through the patronage of bait, shops, restaurants, etc. withinthe vicinity of the lake by the anglers who come to fish the lake.Question 4) Please list and describe at least two recommendations for improving theprogramI. Reduce the thermal load to the lake (not a reasonable/feasible request).2. Continuation of the fish habitat enhancement program.3. The continuation of the supplemental stockings programs is needed for species such asblue catfish, largemouth bass and striped bass hybrid.Question 5) Is there anything else you would like to share with WHC about the program?As previously stated, the Braidwood Lake fishery has undergone several changes over a periodof 25 years. Both the fish population and the fishermen themselves have adapted to thesechanges and the lake remains a very popular and important fishery resource for northeasternf Illinois. Braidwood Station has been very cooperative and supportive of IDNR efforts to enhanceiheargling-oppotuidutics constituents.THANK YOU FOR TAKING THE TIME TO COMPLETE THIS REFERENCE 2013 REFERENCE INTERVIEW hu p~prapQUESTIONNAIRE WILDLIFE HABITAT COUNCIL'2013 Reference Interview Questionnaire to be completed by Wildlife at Work ReferencesThe following questionnaire is to be completed by 3 references who are not employed byyour company. If desired, references may send this form directly to the Wildlife Habitat Councilat 8737 Colesville Road, Suite 800, Silver Spring, Maryland, 20910; fax to 301-588-4629; oremail certification@ wildlifehc.org.REFERENCES, PLEASE COMPLETE THE FOLLOWING:Your name: Bob MasseyYour professional affiliation and/or title: District Wildlife Biologist- Illinois Dept. of NaturalResourcesYour address: 30550 S. Boathouse Rd. Wilmington, [1 60481Your phone number: 816-476-7622 Your email: _bobthebioguy@iilinois.gov ,N ofthe coporate-witdlife site you afftied w thm copany and site name)Excelon Nuclear Power Company -Braidwood Lake State Fish and Wildlife AreaYour contact at that site: Ray Hall/John PetroPLEASE ANSWER THE FOLLOWING QUESTIONS. YOU CAN USE ADDITIONALSPACE IF NECESSARY. BE SURE TO TYPE OR PRINT CLEARLY.Question 1) How exactly are you involved with the site's Wildlife at Work program?The IDNR manages public access of the facility. We provide technical assistance and manpowerfor project and natural resource work on the site to ensure that sound resource managementdecisions are made using BMP's.Question 2) Is the program benefiting local wildlife? If so, how and which species? If not,why?Braidwood Lake is a huge benefit to local wildlife, particularly waterfowl, shorebirds andraptors. Bald eagles, osprey, great blue herons, cormorants, great egrets and a variety of ducksutilize the site throughout the year. This site is especially important during the late winter when other open water areas are frozen Braidwood lake allows waterfowl to stay north to a largerdegree than what they might otherwise be able to, thus saving energy for the return trip north.The open water also allows winter fishing for eagles and osprey. This has helped to attracteagles to the area for nesting which has occurred on site and just off site.Question 3) Is the program benefiting the local community? If so, how? If not, why?Illinois has one of the lowest open space ratings in the country, and Braidwood provides airreplaceable open space opportunity for fishing, hunting and just enjoying being out. With theemphasis nationwide for getting kids reacquainted with the outdoors, this site provides thousandsof man/days of outdoor recreation. Braidwood station, the IDNR and others sponsor a "fishingfor the Cure" charity fishing tournament annually. Also the lake is used as local and regionalhigh school fishing tournament location. Braidwood also provides a huge economic boostthrough direct purchase and taxes on fishing and hunting supplies used by hunters and fishermenQuestion 4) Please list and describe at least two recommendations for improving theprogramI would like to see higher quality habitat placed on the site islands, and some raptor nestingstructures placed on some of the remote peninsulas- However, I realize they are working withinthe constraints of an ooperating industrial facility and both their time and my available time islimited.* Question 5) Is there anything else you would like to share with WHC about the program?The Braidwood facility and Excelon in general have been very valuable partners with the IDNRand the people of Illinois for over a generation. Kids growing up fishing in the area are nowbringing their kids to fish at this facility which shows the commitment of Excelon to share theiravailable resources with the people of Illinois.THANK YOU FOR TAKING THE TIME TO COMPLETE THIS REFERENCE 2013 REFERENCE INTERVIEWQUESTIONNAIRELDLIFHB A IWILDLIFE HABITAT COUNC11L2013 Reference Interview Questionnaire to be completed by Wildlife at Work ReferencesThe following questionnaire is to be completed by 3 references who are not employed byyour company. If desired, references may send this form directly to the Wildlife Habitat Councilat 8737 Colesville Road, Suite 800, Silver Spring, Maryland, 20910; fax to 301-588-4629; oremail certification@ wildlifehc.org.REFERENCES, PLEASE COMPLETE THE FOLLOWING:Your name: Mark MeentsYour professional affiliation and/or title: IDNR Lake KeeperYour address: 30550 S. Boathouse Rd. Wilmington, 11 60481Your phone number: 815/237-0063 Your email: Mark.meents@lllinois.govName of the corporate wildlife site you are affiliated with (company and site name)Braidwood LakeYour contact at that site: Ray Hall/John PetroPLEASE ANSWER THE FOLLOWING QUESTIONS. YOU CAN USE ADDITIONALSPACE IF NECESSARY. BE SURE TO TYPE OR PRINT CLEARLY.Question 1) How exactly are you involved with the site's Wildlife at Work program?I manage the boat docks, ramps, lake dam, and landscaping of Braidwood Lake.Question 2) Is the program benefiting local wildlife? If so, how and which species? If not,why?This program definitely benefits Braidwood Lake. With the fish stocking and artificial habitatthat Braidwood Exelon does, the fish populations are up in numbers. Also, Exelon employeeshave volunteered with local high school students to clean up trash around the lake. This LakeClean Up Day helped the landscape of the lake as a whole. Question 3) Is the program benefiting the local community? If so, how? If not, why?This program is benefiting the community. As I said earlier, the fish stocking and artificialhabitats have interested the local community to fish. An event called Fishing for a Cure is heldannually where locals can participate in a catch and release fish event for charity. This reallygets the community involved and they look forward to it.Question 4) Please list and describe at least two recommendations for improving theprogram1. Plant more invasive species plants around the lake to attract wildlife.2. Continue the artificial fish habitats and the fish stocking.Question 5) Is there anything else you would like to share with WHC about the program?Braidwood does a very good job in managing their lake and keeping it safe for the public. IfBraidwood would have more environmental projects around the lake, it would only benefit theirsite with the public and Exelon nuclear as a whole.THANK YOU FOR TAKING THE TIME TO COMPLETE THIS REFERENCE 2013 Wildlife at WorkMedia Information Sheet.xFFJI:"WILDLIFE HABITAT COUNCI"ICompany Name: Exelon Generation, LLC Site Name: Braidwood Generating StationWould you like Wildlife Habitat Council (WHC) to distribute a press release on behalf ofyour Wildlife at Work program?Yes, I would like WHC to handle the distribution of press regarding my Wildlife at Work program. I listedone (1) internal press contact who will review the press release draft and no more than five (5) externalmedia contacts below.V" No, my one (1) internal press contact, as listed below, will review the press release draft regarding myWildlife at Work program and will handle any distribution of press.Internal Press Contact (required, regardless of which box you checked)Please note that the certification contact listed on the R I form of the application is responsible for reviewing thesite's Wildlife at Work program information. This information will be included in the press release as well as theonline Registry of Certified Programs and Conservation Registry. If the internal press contact does not receive adraft press release by November I"t, please contact WHC's Marketing & Communication Department atpublications@ wildlifehc.org.Name: Neal MillerTitle :Site Communications ManagerDIhr~nae 2 1VAI7-A1 RAPýfl~2 nýoI l ýIlb O AM 01rVName: Neal MillerýJaj "Am11%1441 1 A a a A 1ý1 ý ý A& W .MAMAExternal Media Contacts (required if you checked the first box)Contact #1: Title:Media Group: Email:Contact #2: Title:Media Group: Email:Contact #3: Title:Media Group: Email:Contact #4: Title:Media Group: Email:Contact #5:Title: Media Group: Email: WILDLIFE MANAGEMENT PLAN` Exelon Generation.BRAIDWOOD GENERATING STATION02013Prepared by:BRITTNEY O'CONNOR7 7POOR QUALITY ORIGINAL ] Exeton Generation,WILDLIFE HABITAT COUNCIL:*What is a Wildlife Management Plan (WMP)?A Wildlife Management Plan (WMP) is a comprehensive strategy which outlines goals of the wildlifehabitat program, describes projects to achieve these goals, makes provisions for monitoring projects,and presents implementation and evaluation schedules.A WMP serves as a tool for you to use at the facility. It provides direction and detailed information toguide you through the development of your program and each component is important in its own way.For example, knowledge of the background of the facility, such as historical use and ecologicaldescription, aids in knowing which native plants are best to select for plantings. This way the WildlifeTeam can choose restoration efforts that will most likely provide benefits to wildlife.Keep in mind that a WMP should be a working document; it is intended to be modified as goalschange due to facility conditions and in response to the implementation of your projects. The WMPshould be written so that if a new member joins the Wildlife Team, they would be able to quickly.understand the program.2 'ExetonGeneration,WILDLIFE HABITAT COUNCILVWMP GlossaryProgram -The Wildlife at Work program, encompassing all projects.Mission -The mission is the overarching aim of Wildlife at Work program.Project -A project is a discrete wildlife habitat enhancement venture, meeting the four essentialhabitat components for target wildlife and having one or more objectives.Objective -An objective is a broad action that must be achieved to accomplish a project. Usuallyan objective will have multiple prescriptions.Prescription -Prescriptions are the specific management activities that must be completed toaccomplish an objective. They are narrower than objectives and should be SMART: Specific,Measurable, Achievable, Relevant, and Time-bound.Four essential habitat components -Food, water, cover, and space are four elements essential toall wildlife. Every project must address how these components are being met for the target wildlifespecies, even if not all of the components are directly provided by that specific project.Food -Foliage, nectar, pollen, berries, seeds, and nuts from native forbs, shrubs, and trees areall sources of food for some animals that, in turn, are sources of food for other animals. Nativeplants must be used for a project to qualify for certification. A variety of native plants providea more diverse diet than a monoculture of one species.Water -Water is needed by wildlife for drinking, bathing, and reproduction. A source ofwater must be provided by the project or be located close enough for the species of wildlifeusing the habitat to access. Artificial water sources can include sediment ponds, rain gardens,and bird baths. Naturally occurring water sources can include streams, ponds, rivers, springs,and wetlands. Native plants can also be a source of water, as plant tissue stores water and thewater is released when the plant is digested by wildlife. This can be an important source ofwater for some wildlife in arid environments.Cover -Wildlife need places to hide, rest, sleep, and take cover from environmental stress(sun, rain, wind, etc.). Cover is species-specific. Birds and small mammals can take cover inbushes, thickets, snags, and brush piles. Aquatic organisms can take cover in submerged rockpiles. Native plants can provide cover to insects, mammals, birds, and other wildlife. Artificialsources of cover include structures such as brush piles, bat boxes, and bird houses.Space -Wildlife need space that can encompass the entire life-cycle of the organism, from atadpole to a frog or a caterpillar to a butterfly. The type and size of space that is neededdepends on the species of wildlife. Providing a safe and appropriate place for wildlife toreproduce, raise young and mature is an essential component of a wildlife habitat. Examplesof space are: wildflower meadow, mature forest, forest with vernal pools, and wetland.3 A, Exelon Generation,WILDLIFE HABITAT COUNCIL"Native Species -Native species have evolved complex relationships with other species in the samearea, including plants, bacteria, mammals, birds, reptiles, and amphibians. The members of thebiological community have been evolving together, a process known as co-evolution, for thousandsof years. Native plants are adapted to specific geographic areas depending on environmentalvariables such as soil type, climate, rainfall, pollinators, and seed dispersers.Non-native Species -Non-native species (also called exotic species) are those that evolved in adifferent geographic location and/or environment. These species have developed complexrelationships in their native range, but behave differently, sometimes invasively, when growingoutside their natural range.4 ExelonGeneration,WILDLIFE HABITAT COUNCIL'TABLE OF CONTENTSSUM M ARY ........................................................................................................................................................................ 61. BACKGROUND ................................................................................................................................................... 61. 1. C ORPORATE ENVIRONM ENTAL STEW ARDSHIP ................................................................................... 61.2. W ILDLIFETEAM ............................................................................................................................................... 71.3. FACILITY D ESCRIPTION .................................................................................................................................. 82. ECOLOGICAL C ONTEXT .................................................................................................................................. 82.1. ECOREGION ........................................................................................................................................................ 82.2. W ATERSHED .................................................................................................................................................... I I2.3. LOCAL CONSERVATION C ONTEXT ........................................................................................................ 122.4. ECOLOGICAL C OM M UNITIES ON THE SITE ........................................................................................ 152.5. FACILITY INVENTORY ................................................................................................................................... 153. IM PLEM ENTATION .......................................................................................................................................... 183.1. MISSION OF THE BRAIDWOOD GENERATING STATION WILDLIFE AT WORK PROGRAM ....... 194. EVALUATION AND PROJECT STATUS ................................................................................................... 214.1. TIMELINE OF COMPLETED ACTIVITIES AND FUTURE GOALS ....................................................... 214.2. PROJECT EVALUATION .................................................................................................................................. 214.3. N EW PROJECTS ............................................................................................................................................... 355. D OCUM ENTATION .......................................................................................................................................... 525 Z Exelon Generation.WILDLIFE HABITAT COUNCIL".SUMMARYExelon Corporation's Braidwood Generating Station is located in Will County, Illinois. The siteencompasses a substantial lake that is managed in partner with the Illinois Department of NaturalResources (IDNR). The activities around and within the lake form the basis of the Wildlife at Workprogram. The mission of the Wildlife at Work program at Braidwood Generating Station is toincrease the facility's biological diversity. The individual projects are actively managed andmonitored to ensure that they adhere to this plan. Additionally, the Braidwood Generating Stationprogram provides educational opportunities to Wildlife Team members, Braidwood GeneratingStation employees and the general public. Activities undertaken at the site and explained in moredetail below include: fish habitat creation, fish stocking, recreational angling, shoreline plantingsand extensive fish and water quality monitoring.1. BackgroundExelon Corporation (Exelon) has been a member of the Wildlife Habitat Council (WHC) since2005, a standing that exemplifies its commitment to improving wildlife habitat through theenrichment of pre-existing habitat and the establishment of new habitat on the company'slandholdings. Habitat projects have been implemented on the site with the help of the IllinoisDepartment of Natural Resources for a number of years. The certification of the Wildlife at Workprogram in 2011 is the current goal of the Wildlife Team. The following sections describe thefacility and environmental context of the site.'1.1. Corporate Environmental StewardshipExeloI'n policy states, ainong other' things, that "ExetoI ri-o11it.td-to-eontirn-l-y-improving its environmental performance" and that we will promote a corporate culture where fullcompliance with environmental regulations is the minimum level of acceptable performance. Byoperating beyond minimum requirements in selected environmental areas and using resources moreefficiently, Exelon will:" Reduce our impact on the environment." Conserve natural resources for future generations." Realize reduced operating costs." Improve our relationships with stakeholders." Participate in the development of environmental public policy and regulations." Enhance the reputation of the company." Strengthen customer satisfaction." Offer our employees an environmentally responsible place to build their careers.Since 2004, Exelon has pursued an environmental strategy that builds on four fundamentalelements: regulatory compliance, risk management, resource stewardship and leadership on keyenvironmental issues.* Regulatory Compliance Exelon's environmental strategy begins with a commitment to bein compliance with environmental laws and regulations 100% of the time. Our regulators,our investors, our customers, our employees and the communities where we operate expectAdik us to meet the requirements of the law and we expect no less of ourselves.6 m Exeton Generation.WILDLIFE HABITAT COUNCIL* Risk Management Exelon has legacy environmental issues that we must effectivelymanage, such as polychlorinated biphenyls (PCBs)-contaminated oil management and theclean-up of manufactured gas plant sites. We identify and address these historic issues,while also taking action to prevent and minimize the risks that may arise from of our currentoperations.* Resource Stewardship Through more efficient use of natural resources, we also lower thecost to produce and deliver our energy products. Our in-house energy efficiency andrecycling programs are examples of our efforts on this strategy component." Leadership Our focus is on significant environmental issues for Exelon including climatechange, renewable energy, energy management and the future of nuclear power.FIGURE 1: FRAMEWORK FOR ENVIRONMENTAL STRATEGYFramework for Environmental StrategyIBeyond Corn plianceALeadershiptResaourcdeStewardshipHow Exelon creates a competitive advantageHow exelon reduces casts andI.vZ.\ creates financial valueComplianIce/Risk ManagementComplianceOur obligationThe continued enhancement of the land and water adjacent to the Braidwood Generating Stationwill not only provide a benefit to wildlife and the community, but will assist in meeting theenvironmental goals of Exelon.1.2. Wildlife TeamThe Braidwood Station Environmental Stewardship Team has had up to 10 employees and hassuccessfully enlisted as many as 36 additional site employees for specific projects. The team hasalso enlisted the help off-site volunteers, professionals and community members on a frequent basis.7 ' Exelon Generation.WILDLIFE HABITAT COUNCIL* 1.3. Facility DescriptionExelon's Braidwood Generating Station is located on approximately 4,457 acres in Will County,Illinois. The Braidwood Generating Station, which is about 20 miles southwest of Joliet and about60 miles southwest of Chicago, employs approximately 750 permanent employees and 140permanent contractors. Braidwood facility employees participate in various local and nationalfundraising programs and sponsorships, including annual hosts of Fishing for a Cure event thatraises money to aid efforts regarding suicide prevention among teens.The facility reports a total net power generation of approximately 2,360 megawatts from its tworeactors. The facilities two reactors, Unit 1 and Unit 2, are licensed to operate until 2026 and 2027respectively. Unit I went into production in July of 1988, while Unit 2 began operation in Octoberof that year.The Braidwood Generating Station's 2,640 acre cooling lake was created by flooding portions of aformer strip mine operation. The lake is now managed jointly by Exelon and Illinois DNR.2. Ecological ContextThis section is designed to provide an understanding of the larger context that your habitatenhancement goals will fit into. The objectives and projects must be compatible with theenvironment and landscape (ecoregion) in which they are proposed. When completing the"Reasoning Behind Project" section later in the WMP, this information will be the backbone of the.reasoning. Understanding the larger environmental characteristics of the region is vital to having astngJildlife_at Work program with successful pmjects. The infnrmatinn ted-inihi.i-sectionincludes descriptions of the regional and local climate, terrain, species and other uniqueenvironmental characteristics.2.1. EcoregionThe U.S. Department of Agriculture (USDA) and Forest Service (USFS) use a land classificationsystem of terrestrial ecoregions as described by Robert G. Bailey. This classification of terrestrialecoregions is hierarchical, and is based on elements of climate, geology, topography and vegetation.This widely recognized system separates the United States into large domains, followed bydivisions in which provinces are described. Ecoregions are a geographically based system fororganizing our knowledge about ecosystems and ecosystem responses to our management. Theyprovide a framework for prioritizing land conservation, preservation and restoration projects. TheUSFS National Hierarchy is a classification system that includes eight levels of nested map units ofwhich 4 are commonly used in facility habitat projects: domain, division, province and section.The Braidwood Generating Station is located within the Prairie Division of the Humid TemperateDomain. The Humid Temperate Domain is a middle latitude domain affected by both tropical andpolar air masses, resulting in pronounced seasons, and strong annual cycles of temperature andprecipitation. Winter frost determines six divisions within this domain (Bailey 1995). The PrairieDivision is dominated by tall grasses with subdominant broad-leaved plants (forbs). Trees aremostly absent in this division, except in the transitional belt of prairie and broadleaf forest along the.division's eastern edge. Rates of precipitation and evapotranspiration are roughly equal in thisdivision (Bailey 1995).8 ' Exelon Generation.WILDLIFE HABITAT COUNCIL"The Prairie Division is further subdivided into two provinces based on climate- the Prairie Parkland(Temperate) Province and the Prairie Parkland (Subtropical) Province. The Braidwood GeneratingStation is located within the Prairie Parkland (Temperate) Province (see Figure 2). The gentlyrolling topography of this province extends from Canada to Oklahoma and consists primarily ofalternating prairie and deciduous forest (Bailey 1995). The terrain consists mainly of plains withareas of low hills (McNab et al. 2005). The climate within the Prairie Parkland (Temperate)Province consists of hot summers and cold winters, with average annual temperatures ranging from400 to 60* Fahrenheit. Precipitation occurs in moderate amounts, ranging from 20 to 40 inchesannually, with most falling during the growing season (Bailey 1995; McNab et al. 2005). Thevegetation of the province is considered to be forest-steppe, which is an intermingling of prairieswith intermittent groves and strips of deciduous trees. In the western portion of the province, treesare found primarily near rivers and streams as well as on north-facing slopes where soil moisture ishigher. Trees are more prevalent in the eastern portion of the province. Tree species of this provinceare primarily oak and hickory, with a wider variety occurring in floodplains and moist hillsides.Species such as cottonwood, black willow and American elm can be found in western portions ofthe province. Typical grasses are warm-season clump grasses, such as the bluestems, switchgrassand Indiangrass, with a great diversity of forbs and legumes intermixed. Little intact habitat remainswithin the province, as the favorable conditions of soil and climate have made this highlyproductive region prime for conversion to agricultural crops. In addition, with the absence ofdisturbance regimes, such as fire and grazing by herds of bison and elk, prairies and savannas of thisdivision have succumbed to natural succession. As a result, many prairies that still remain havebecome overgrown with woody vegetation (trees and shrubs), and no longer resemble prairiehabitat, or support prairie fauna (Bailey 1995).9 AaýANIVAMWExelon Generation,WILDLIFE HABITAT COUNCIL"Figure 2: Prairie Parkland (Temperate) ProvinceMap by WHCData sources: Bailey (1995); ESRI Online; USDA Forest ServiceThe Prairie Parkland (Temperate) Province is further delineated into seven sections, with theBraidwood Generating Station located within the Central Loess Plains Section (see Figure 3). Thissection is composed of smooth and irregular plains covered with loess, which is made up of depositsof fine-grained silt or clay formed by the wind. Historically, the section featured prairie potholesand small marshes, but most were drained as the land was converted to agricultural use. Today,approximately 60% of the section's land is used for crops and 25% is used for grazing. Americanbison were once numerous, and pronghorn could be found in this section as well. Currently, white-tailed deer are the most common large mammal. Other common mammals include predators such asthe coyote, swift fox, kit fox, and bobcat; and smaller mammals such as jackrabbits, cottontailrabbits, the Virginia opossum, and a variety of rodents. Birds occurring in this section include thenorthern bobwhite, horned lark, eastern and western meadowlarks, Cooper's hawk, barred owl, andlong-eared owl. Reptiles such as the common snapping turtle, box turtle, ringneck snake and bullsnake, as well as amphibians such as the American bullfrog, also inhabit this section (McNab &Avers 1994). Black crappie, a fish that has been widely introduced throughout the American westand Canada, is native to this section; other typical fish include largemouth bass and catfish species(McNab & Avers 1994; NatureServe 2009).10I POOR QUALITY ORIGINALI AgwýAwr1AMWExelon Generation,WILDLIFE HABITAT COUNCILMap by WHCData sources: Bailey (1995); ESRI Online; USDA Forest Service2.2. WatershedIn addition to being located in the Prairie Parkland Province, Exelon's Braidwood GeneratingStation is situated within the Kankakee River Watershed. Figure 4 provides an example of theappearance of the Kankakee River where it is adjacent to Braidwood Generating Station property.The Kankakee River, which is approximately 90 miles long, is one of the major tributaries of theIllinois River. The Kankakee River was reportedly 240 miles long until the early portion of the 19"hcentury, when 99 percent of the area's natural swamplands and marshes were drained and the riverwas channelized to facilitate agricultural development. Currently, less than one percent of theoriginal swampland that was located around the river system remains.POOR QUALITY ORIGINAL!1 AMMýAMMVExelon Generation,WILDLIFE HABITAT COUNCILVFIGURE 4: KANKAKEE RIVERThe Kankakee River has a watershed of approximately 5,280 square miles, of which 3,125 squaremiles are in Indiana and 2,155 are in Illinois. In Illinois, the Kankakee River's watershed includesportions of Kankakee, Iroquois, Grundy, Vermillion, Ford and Will counties. According toinformation compiled by the Illinois Department of Natural Resources Division of Fisheries, theKankakee is "predominantly a clear, shallow stream with gravel-rubble riffles, sand bottom poolsand swampy-marshy areas along its upper portion. Larger pools are formed by the Momence,Kankakee and Wilmington dams and by the Dresden lock and dam on the headwaters of the IllinoisRiver."2.3. Local Conservation ContextThe Braidwood Generating Station is located in Will County. The northern portion of Will Countyis comprised mainly of suburban Chicagoland neighborhoods, while the southern portion of thecounty features less urban development and more agricultural development. The propertiessurrounding the Braidwood Generating Station are described as agricultural and include some areasof rural residential development.12 POOR QUALITY ORIGINAL~ m' Exelon Generation,WILDLIFE HABITAT COUNCIL"Will County agricultural lands include predominantly corn, oat and soybean crops; however, othercrops planed in the county include wheat and winter wheat According to information availablefrom the U.S. Census Bureau, the county has a total land area of about 837 square miles, and totalwater area of about 12 square miles, making the total water area of the county approximately 1.47percent. As of the 2000 census, the county had 502,266 people or approximately 167,542households.The initial conversion from prairie and savannah to agricultural development significantly reducedthe open space of Will County. Currently the conversion of open space and agricultural land tourban and suburban development is placing additional strain on the wildlife and habitats of WillCounty.2.3.1. Will County Land Resource Management PlanThe Will County Land Resource Management Plan, which was compiled and approved by theCounty Board, states that "agriculture land, rivers and stream corridors, natural habitat areas, parksand other open space resources are key too Will County's character and quality of life." In order tocharacterize and protect these resources, Will County has developed a list of six initiatives for thelong term protection and preservation of open space within the county. These initiatives areimperative because, "although the county as a whole is still largely (80%) undeveloped, projectionsindicate that the current developed area could as much as double by the year 2020."The six initiatives governing future preservation of open. space are as follows:* Protect critical lands along the Des Plaines, DuPage and Kankakee River systems andidentify othe, fipaiian Luidois ind Will Countf y ['otection." Establish riparian buffers around all stream corridors in Will County to protect water qualityand prevent streambank erosion.* Protect all environmentally sensitive lands and ecosystems.* Formally designate trail corridors and loops throughout the County to provide clear, safeconnections among Will County's existing and future open spaces." Focus acquisition efforts in areas of the County currently under the greatest threat of loss ofopen lands to ensure the equitable distribution of open space across the county.* Identify lands along rail corridors and potential brownfield sites that may be converted toopen space.These six initiatives have been developed in order to provide residents of the county, current landmanagers and potential future developers with information pertaining to the county's open space,and desired uses of open space. Braidwood Generating Station land managers should keep theseinitiatives in mind when developing habitat management and enhancement plans for portions of theproperty within the county, as these initiatives are helping county officials shape available openspaces. The Will County Land Resource Management Plan is available on line by accessing thefollowing web link: hhttp://www.willcountylanduse.com/AdminDiv/Documents/LRMP/index.html.13 Aaý)jUnrAvowExelon Generation,WILDLIFE HABITAT COUNCIL* 2.3.2. Forest Preserve District of Will CountyExelon has an ongoing relationship with the Forest Preserve District of Will County that includesdonating money for the management and restoration of the Braidwood Dunes Savannah and NaturePreserve. The Forest Preserve District works to conserve and restore open space for wildlife andrecreation. Currently approximately 21,000 acres are managed or protected by the Forest PreserveDistrict. Figure 5 shows the conservation areas near the Braidwood Generating Station. Much ofthe land in the conservation areas consists of prairie, savannah and dune habitat, similar to thehabitats found at the site. The enhancement of the land and lake at the site will help to increase theoverall habitat at the landscape level. The Wildlife Team will work to increase the informationalexchange and partnership between Exelon and the Forest Preserve District.FIGURE 5: CONSERVATION AREASPreserve District of Will CountyPOOR QUALITY ORIGINAL]14 'Exelon Generation,WILDLIFE HABITAT COUNCIL2.3.3. Midewin National Taligrass PrairieIn addition, representatives from the Midewin National Taligrass Prairie, which provides anotherexample of relevant habitat restoration efforts in the ecoregion, may be able to assist BraidwoodGenerating Station land managers in evaluating and enhancing early successional habitats at theBraidwood site. According to information available in the Midewin Land and ResourceManagement Plan, the Midewin National Tallgrass Prairie "provides habitat for a rich assemblageof plants and animals, including over twenty species listed by the State of Illinois as watch list,threatened, or endangered species. Over 100 bird species nest and breed at Midewin, and anadditional 68 bird species utilize the habitat either during migration or as a winter range. Fifteenreptiles and eight amphibian species have been inventoried, with 27 mammal species, both gameand non-game and a total of 53 fish species. The diversity of flora includes at least 600 plant speciesidentified and documented including a number of invasive and/or exotic plant species." Landmanagers at the Midewin National Tallgrass Prairie have identified the following challenges asbeing critical to current management strategies:" Reducing habitat fragmentation." Restoring shortgrass habitat for upland sandpipers.* Providing a balanced mix of habitat types." Proving seeds of native prairie plants for other restoration projects." Managing watersheds and aquatic resources.* Restoring disturbed landscapes.* Providing for human health and safety." Enhancing water quality.V Cunducting -all activities withlin a fi [Unlewuik of adaptive nTanagemuneit.Land managers at the Braidwood Generating Station will investigate opportunities to work withpartners from the Midewin National Tallgrass Prairie and from other restoration programs whenformulating overall site management objectives to ensure site goals fit with local and regionalconservation and remediation goals.2.4. Ecological Communities on the SiteWithin Exelon's corporate landholdings at the Braidwood Generating Station, there are a diversityof habitat types including old field and early successional grasslands, Lake Shoreline, andunderwater habitat. The focus of the management efforts have been on the fish and underwaterhabitat and the shoreline. However, the old field and early successional grassland habitat could bemore actively managed by the Wildlife Team. The addition of this type of habitat would expand thescope of the current Wildlife at Work program.2.5. Facility InventoryConducting a thorough inventory of the plants and animals present at the facility is a priority of theWildlife Team, as an inventory helps to become familiar with the plants, animals and habitats foundat the facility. The wildlife inventory is an ongoing process. The goal is to understand the facility'shabitats by compiling a list of resident and transitory species, using seasonal inventories conductedin the spring, summer and fall.The following web sites are used to identify species found on the site: www.itis.gov,www.wildflower.org/explore, www.invasive.org, and www.plants.usda.gov.15 AN Exelon Generation,WILDLIFE HABITAT COUNCIU"On September 29,2005 Wildlife Habitat Council Biologist visited Braidwood Station and conducteda site assessment that included a species inventory that is listed below in Table 1.TABLE 1: SPECIES LISTDATE FIRST DATE LASTTYPE COMMON NAME SCIENTIFIC NAMEOBSERVED OBSERVEDPlants Silver maple Acer saccharinum 9/2005Yarrow Achillea millefolium 9/2005White snakeroot Ageratina altissima 9/2005Nodding wild onion A Ilium cernuum 9/2005Big bluestem Andropogon gerardii 9/2005Giant reed grass Arundo donax 9/2005Milkweed Asclepias syriacA 9/2005 3/2011Sideoats grama Bouteloua curtipendula 9/2005Sedge Carex spp. 9/2005Plants Partridge pea Chamaecristafasciculata 9/2005Oxeye daisy Chrysanthemum leucanthemum 9/2005Chicory Cichorium intybus 9/2005ThistleCirsium spp.9/20054 1 I I I ___________Tall coreopsisCoreopsis tripteris9/2005Jimson weed Datura stramonium 9/2005Queen Anne's lace Daucus carota 9/2005Tick trefoil Desmodium illinoense 9/2005Purple conflower Echinacea purpurea 9/2005Daisy fleabane Erigeron annuus 9/2005Swamp sunflower Helianthutv angustifoliu 9/2005Sunflower Helianthui spp. 9/2005Eastern red cedar Juniperutv virginiana 9/2005 3/2011Junegrass Koeleria macrantha 9/2005Yellow sweet clover Melilotus officinalis 9/2005Prickly pear cactus Opuntia spp. 9/2005Switchgrass Panicum virgatum 3/2011Purple prairie clover Petalostemum purpureum 9/2005Common reed Phragmites australis 9/2005 3/2011American pokeweed Phytolacca Americana 9/2005Cottonwood Populus deltoids 9/2005Burr oak Quercutv macrocarpa 9/2005.-Oaks Quercus spp. 9/2005 3/201116 A' Exeton Generation,WILDLIFE HABITAT COUNCIL1DATE FIRST DATE LASTTYPE COMMON NAME SCIENTUFIC NAMEOBEVDBSR DOBSERVED OBSERVEDPrairie coneflower Ratibida columnifera 9/2005Raspberry Rubus rosifolius 9/2005Blackberry Rubus spp. 9/2005Black eyed Susan Rudbeckia hirta 9/2005Willow Salix spp. 9/2005Little bluestem Schizachyrium scoparium 9/2005Foxtail Setariafaberi 9/2005Goldenrod Solidago spp. 9/2005Prairie dropseed Sporobolus heterolepis 9/2005Common dandelion Taraxacum officinale 9/2005Tall spiderwort Tradescantia ohiensis 9/2005Eastern gamma grass Tripsacum dactyloides 9/2005Cattail Typha spp. 9/2005Mammals Red fox Vulpes vulpes 9/2005White-tailed deer Odcoileus virginianus 9/2005Raccoon Procyon lotor 9/2005Gray squirrelSciurus carolinensiv09/20053/2011a -3 I IChipmunkTamias striatus9/2005Skunk Mephitis mephitis 9/2005Groundhog Marmota monax 3/201 1Birds Red-winged 9/2005 3/2011blackbird Agelaius phoeniceusBlue-winged teal Anas discors 9/2005Mallard Anas platyrhynchos 9/2005Gadwall Anas strepera 9/2005Great blue heron Ardea herodias 9/2005 3/2011Egret Ardea spp. 9/2005Canada goose Branta canadenmis 9/2005 3/2011Red-tailed hawk Buteojamaicensis 3/2011Red-shouldered hawk Buteo lineatus 9/2005Turkey vulture Cathrtes aura 9/2005 3/2011Northern Cardinal Cardinalis cardinalis 3/2011American crow Corvus brachyrhynchos 9/2005White egret Egretta alba 9/2005American kestrel Falco sparverius 9/200517 A' Exelon Generation.WILDLIFE HABITAT COUNCILVDATE FIRST DATE LASTTYPE COMMON NAME. SCIENTIFIC NAME OBSERSE OBSEOBSERVED OBSERVEDBald eagle Haliaeetus leucocephalus 9/2005Barn swallow Hirundo rustica 9/2005Red headed 9/2005woodpecker Melanerpes erythrocephalusWild turkey Meleagris gallopavo 9/2005Song sparrow Melospiza melodia 9/2005Mockingbird Mimus polyglottos 9/2005 3/2011Osprey Pandion heliaetus 9/2005White Pelican Pelecanus erythrorhyncho 3/2011Brown pelican Pelecanus occidentalis 9/2005Purple martin Progne subis 9/2005Eastern bluebird Sialia sialis 9/2005Tree swallow Tachycineta bicolor 9/2005Mourning dove Zenaida macroura 9/2005Insect Common wood Cercyonis pegala 9/2005nymph Iercyonis IegalaPearly crescent Phyciodes tharos 9/2005 1MI 1 4r~fn%WIILIIýý5 risp aUJJL."71 £UUJFish Largemouth bass Micropterus salmoides 9/2005Walleye Stizostedion vitreum 9/2005Catfish Ictiobus bubalus 9/2005Smallmouth bass Micropterus dolomieu 9/20053. ImplementationThis section describes the mission, projects, objectives and prescriptions of the BraidwoodGenerating Station Wildlife at Work program. This part of the Wildlife Management Plan answersthe following questions for each project: WHY, WHAT, and HOW.18 ' Exeton Generation,WILDLIFE HABITAT COUNCII:3.1. Mission of the Braidwood Generating Station Wildlife at Work programThe mission of the Braidwood Generating Station Wildlife at Work program is to increase thefacility's biological diversity. Individual projects will be actively managed and monitored to ensurethey adhere to this plan. Additionally, the Braidwood Generating Station program provideseducational opportunities to Wildlife Team members, Braidwood Generating Station employees andthe general public.> Project 1. Braidwood Lake Habitat and Fishery Management.Reasoning Behind Project: Braidwood Lake is a 2,640 acre lake was created in 1981when several old strip-mine pits were flooded with water pumped from the KankakeeRiver. The current use of the lake is a major improvement from the degraded strip mineit once was. The lake supports a diverse fish population, provides vital habitat for birdsand is important for recreation. Maintaining the quality of the habitat will allow thecommunity to benefit from the recreational opportunities and continue to support localand migratory wildlife.Project's Background Information: Fisheries management activities have taken placefor decades and the lake has been supplementally stocked with a variety of warm- andcoolwater fish species. These included largemouth and smallmouth bass, blue catfish andred sunfish. The lake is an important recreational area for fisherman and waterfowlhunting due to the quality and management of the habitat. The lake also supports otherspecies such as eagles and osprey. Eagles have previously nested at the lake and areoften seen in the area feeding. Ospreys also use the lake routinely for feeding. Migratorybirds such as white pelicans and great blue herons, among many other species, also makeusesof the lake fnr ferding- and sitariovr habitat Fixelon IDNR and laral fishermen hayepartnered to add underwater fish habitat and host an annual fishing event to raise moneyfor charity.Essential Habitat Components: The fish stocking, shoreline restoration and willowplanting create a well-rounded lake management project. The planting of water willow(justicia Americana) will provide important spawning sites for fish species and habitatfor invertebrates once established on the lake shore. These smaller fish and invertebratesform the basis of the food chain in the lake, supporting the larger forms of life, includingthe largemouth bass, heron, turtles, eagles and osprey. The lake is sufficient size to allowfor fish spawning and avian reproduction. The underwater habitat is enhanced by theaddition of the fish habitat modules.Objective 1. Fish Population Management.o Prescriptions:* Continued evaluation of habitat.* Conduct water temperature/dissolved oxygen profiles during the summer.* Conduct spring trap net survey.* Conduct biennial fall fish population survey.* No modifications to the present fish harvest regulations for 2011.* Continue fish Stockings: Additions of largemouth bass and blue catfishfingerlings have been requested. Hybrid striped bass have also beenapproved for stocking in 2011.19 Exelon Generation.WILDLIFE HABITAT COUNCILo Monitoring: The [DNR routinely monitors the area and the above prescriptionsresult in various types of data being collected. The fish population surveyprovides details on the species, size and number of fish in the lake. The watertemperature and dissolved oxygen provide details about the potential survival offish in the lake during the summer.Objective 2. Underwater Habitat Restoration.o Prescriptions:" Continue the placement of underwater PVC fish habitat modules." Identify priority locations and coordinate with IDNR and other groups toplace the habitat modules in the lake." Consider using other materials such as old Christmas trees as underwaterhabitat. These could be collected from site employees after the holidayseason. They can be bundled together and tied to a concrete block or thebase of the tree can be placed in concrete." Consider using old wood pallets for fish habitat. Three pallets can beattached to create a pyramid or triangle structure and then this can be sunkwith concrete blocks.o Monitoring: Monitoring these structure's direct effectiveness is difficulthowever the fish population numbers and recreational harvest provide evidencethat the structures are benefiting fish. These indirect measures will continue tobe used to assess the effectiveness of these structures.-O ---- -- O-Objeetive-Shoreliie-Restoraeion.o Prescriptions:" Evaluate the potential for additional shoreline plantings of water willow(justicia Americana)." Consider planting other native shoreline plants in consultation with theIDNR." Evaluate the potential for controlling and removing some of the non-nativeinvasive common reed (Phragmites australis) with mechanical methodsand aquatic safe herbicide.o Monitoring: The original planting of water willow occurred in 2008. The areasplanted will be visually assessed to determine the establishment of theplantings.* Objective 4. Community Outreach.o Prescriptions:" Continue the "Fishing for a Cure" event." Continue to support the recreational fishery." Engage the community in restoration projects such as the fish habitatmodules and shoreline restoration." Encourage other groups to use the lake, such as local birding groups, todocument the number and species of birds at the lake.o Monitoring: The amount of money raised and turnout for the "Fishing for aCure" event is used to gauge the success of the event. Also, the addition of newpartners to the lake restoration projects will also be used a measure of success.20 Ae. Exelon Generation.WILDLIFE HABITAT COUNCILV4. Evaluation and Project StatusExelon's commitment to Braidwood Lake and the community have resulted in numerous successes,for wildlife and for people. The fishing events raise money for charity and engage people in theoutdoors, and projects like the habitat modules introduce the community to innovative habitatrestoration projects.4.1. Timeline of Completed Activities and Future Goals2007 2008 2009 2010 2011 2012June -Planted Placed 88 fish Placed 80 fish Placed 88 fish Placed 68 fishStocked 73,692 2,000 water habitat modules habitat modules habitat modules habitat moduleslargemouth bass willows in lake in lake in lake in lakePlaced fish Placed fish Stocked 18,158 Stocked 46,160 Stocked 87,733 22,782 Stripedhabitat modules habitat modules largemouth bass largemouth bass largemouth bass Bass Stockedin lake in lakeMay -Fishing Stocked 9,280 Stocked 32,642 Stocked 9,812 Stocked 25,324 May- Fishing forfor a Cure blue catfish a CureTournamren blue catfish blue catfish blue catfish ToureTournament TournamentMarch/April -June -electro May-Fishing for April-IHSA BassStocked 112,724 trap net fish fishing sampling a cure fishinglargemouth bass survey conducted Tournament tournamentconductedStocked 32,387red sunfishAugust -Watertemperature andDO surveyMay -Fishingfor a CureTournamentStocked 75,743Redear Sunfish04 4 4 4 4
- 1May -Fishingfor a CureTournamentBiennial fishpopulationsurveyconductedStocked 47,299Striped Hybridbass4 4 4 4 4May -Fishingfor a CureTournamentBiennial fishpopulationsurveyconducted4.2. Project Evaluation* Project 1: Braidwood Lake Habitat and Fishery Management.o Date the project was started:" Fish stocking and population management -1980's." Fish habitat modules -2006." Shoreline restoration -2008." Partners and organizations involved with the lake project are as follows; IllinoisDepartment of Natural Resources (IDNR), American Bass Anglers, Bass PAC,Illinois Valley Bass Masters (IVBM) and site volunteers.I Partners for the "Fishing for a Cure" events have been numerous, as well as thecharities benefiting from the event. Examples of partners include American BassAnglers, Godley Park District, Conetsoga Rovers and Associates, "D" Construction,ESPN Radio and several other local businesses. Charities include Cystic Fibrosis21 Exeton Generation.WILDLIFE HABITAT COUNCILFoundation, Yellow Ribbon Suicide Prevention Center, Multiple Sclerosis Society,Autism Speaks and several site volunteers, 36 total.o Explain whether native plantings are being used: Native water willow was used in theshoreline restoration.o Explain whether non-native invasive species are being controlled: non-native invasivespecies are not currently being controlled, but the control of common reed will beinvestigated.The Braidwood Generating Station employees have taken considerable action with their partners inthe last few years to improve the habitat of the lake. In short, more than 400 fish habitat moduleshave been placed in the lake, approximately 27,000 water willows have been planted andapproximately 55,000 largemouth bass and 40,000 blue catfish have been stocked in last two years.2008In June 2008, Exelon, IDNR and community volunteers came together to restore and enhance theshoreline at Braidwood Lake. Under the technical guidance of the IDNR water willow (justiciaAmericana) was planted along the shoreline. Early observations indicated minimal survival andobservations of all planting sites as of 2009 failed to produce a single plant. Fluctuating waterlevels, high turbidity, competition from common reed (phragmites austalis) and deer depredationare all possible reasons for the apparent failure of these plants. It is hoped that a few of these plantsthat were uprooted have taken hold at an alternate location.T he shoreline habitat restoration ties into the underwater habitat restoration that began in 2006.T. e American n-ss A-nlr-2n-e-_ý o!f!!,l_! tion_ Committee. haveworked together to place more than 400 PVC fish habitat modules within the lake. The modulesmimic natural habitat features and provide habitat for fish of all sizes. Exelon and the partnersadded more PVC habitat modules throughout the lake in 2008.2009In 2009 largemouth bass and blue catfish fingerlings were stocked by the IDNR and no major fishlosses were reported.Stocking numbers:0 18,158 largemouth bass fingerlings (8/acre) with average length at stocking ranging from2.6 to 5.1"e 32,642 6-inch blue catfish fingerlings (14.6/acre)In late March and April 2009 eight trap nets were fished for a two night period in locations similarto the 2007 survey. High winds precluded the safe running of nets on day one but nets were liftedand most were devoid of fish. Day two brought better weather but few fish were collected. Thefollowing fish were actually processed: 4 channel catfish, 2 largemouth bass and 12 bluegills. A fewcommon carp were also captured but were not measured or weighed. Catch totals for this surveypaled in comparison to that of 2007 which saw a total of 132 channel catfish caught in 18 net-nightsof effort. No crappie or blue catfish were collected. Surface water temperature was 58*F comparedto 70°F in 2007.22 Amw ExetonGeneration,WILDLIFE HABITAT COUNCIL"Water temperature and dissolved oxygen (DO) profiles were conducted in late August 2009. A totalof seven locations were tested. At the one-foot level, water temperatures ranged from 390 C/102.2°Fto 34°C193.2*F. On the warm side of the lake, DO readings of nearly 6 ppm were observed near thesouth boat ramp. At this location, water temperature showed a gradual decline, falling to310C/87.8°F in 45 feet of water. Dissolved oxygen fell below 4 ppm at 9 feet. The area located nearthe old fish rearing cove was somewhat cooler (34.5°C/94.1°F at one foot) but DO fell below 4 ppmat 5 feet. At a location near the north boat ramp, water temperature was 34°C/93.2°F at one foot andDO remained above 4 ppm to a depth of 21 feet (water temperature of 32.5°C/90.50F).The IDNR conducts a Fish Population Survey every two years at Braidwood Lake and the resultsfrom 2009 are discussed below.Sampling effort consisted of 485 minutes (16.2 hours) of DC daylight electro fishing, an increase of24.4% over the previous survey. The first day of the survey was conducted in high winds whichhampered sampling effort. Surface water temperature ranged from 30.50C/86.90F to 18.8°C/65.80F,which on average was 3.90C lower than the 2007 survey. Total alkalinity readings remainedconsistent at 239.4 mg/I while conductivity ranged from 952 j.mhos/cm to 1069 [imhos/cm.Largemouth bass were collected at the rate of 0.65/min. (315 total collection) which is a very slightdecline from the previous survey. Nearly one-half of the 2009 collection was comprised of bass 6inches and less which indicates the influence of stocked fish. Improvement to the bass populationwas observed by all population structural indices, e.g. the number of quality size and larger bass (12inches-plus) nearly tripled from 2007 figures. Body condition for all length groups of largemouthhas sampled was very gnod with the average relative weight valet for ba... 6 inches and larger Lwslightly in excess of 104.The impact of the restrictive harvest limit (18-inch minimum, one fish per day creel) is observed inrelative stock density values (Relative stock density (RSD) refers to the percentage of bass whichare a designated size in relation to the stock length. For example, RSDI6 is the percentage of basswhich are at least 8 inches in length which meet or exceed 16 inches.) The RSD16 improved from7.7 in 2007 to 16.8 in 2009 and the RSDI8 value for 2009 was 3.8. No largemouth bass 18 inchesor larger were collected in 2007.Channel catfish were collected at a markedly lower rate than the previous surveys (0. 19/min. in2009, 0.58/min. in 2007, 0.25/min. in 2005). After showing steady improvement for the past severalyears, the average length for channel catfish collected in 2009 declined to its lowest point in 10years, falling slightly below the long-term average (308mm/12.0").Three blue catfish were collected, suggesting the presence of multiple year classes. Three flatheadcatfish were collected ranging from 29 to 31 pounds.The threadfin shad were more prevalent than gizzard shad. Bluegills continued to be very prevalentalong rip rapped shores of cooler portions of the lake. Larger bluegills (>180mm/7.0") were notcommon as the average size fell below the long-term average (128mm/5.0"). The average length forcommon carp reached an all-time high (512mm/20.0") while their body condition fell belowstandard. Spotfin shiners were extremely prevalent in this collection. Western mosquito fish(Gambusia affinis) and mimic shiner (Notropis volucellus) were collected for the first time.23
' Exeton Generation,WILDLIFE HABITAT COUNCIL'.In early April 2009, 88 fish habitat modules were positioned in groups throughout the lake,continuing the effort to provide more underwater structure. The structures are installed with the helpof volunteers and their boats that are used to carry the fish habitat modules throughout the lake.2010In 2010 the fish stocking efforts were continued and some monitoring was conducted. The IDNRstocked largemouth bass and blue catfish. There were no major fish losses in 2010. Stockingnumbers:* 46,160 4-inch largemouth bass fingerlings (20.6/acre)* 9,812 5.3-inch blue catfish fingerlings (4.3/acre)In early June the DC electrofishing unit was utilized at settings which have been shown effective forthe collection of blue and flathead catfish. The following settings were used to obtain amperageclose to one: pps -7.5, "high" setting @ of roughly 15-20%. Approximately two hours of effortwere expended with no blue or flathead catfish collected. The unit did succeed in bringing smallchannel catfish skittering along the surface. Water temperature ranged from 88 to 95°F. Skies weremostly sunny with air temperatures in the upper 80's. Areas selected for sampling included thechannel leading towards the lake intake, obvious current breaks in the cooler portion of the lake, the"Arrowhead" area and the lake make-up, which was receiving water. The poor results are felt to bea function of the high water temperatures.I-n 20!10 an-additional 80 fish habitat-od.les-wre-places ntoa the lake-with the help- ofthe DNR,American Bass Anglers, and the BASS Political Action Committee.24 'Exelon Generation,WILDLIFE HABITAT COUNCIL"2011Braidwood Station Cooling LakePeriod of Reporting: 1/10-12/11 Date of Report: 2/2/2012District Fisheries Biologist: Rob MillerManagement Activities Completed:4/9/2010 and 6/29/2011 -Installed M.E.H.S. (Marine Eco-Habitat System) units.6/10/2010 -Blue catfish survey.10/4-6/2011 -Completed biennial standardized fish population survey.Supplemental stockings: The following list summarizes fish stockings which occurred during thisreporting period.-Blue catfish: 25,324 fingerlings ranging from 5.0 to5.3"-Largemouth bass: 87,733 fingerlings ranging from 3.5" to 4.2"-Redear Sunfish: 75,743 1-inch fingerlings-Bluegill: 133,403 1-inch fingerlings-Striped bass hybrids: 47,299 1.7-inch fingerlings-Diseussion-of-Biologieal-Surveys-Completed: S2011 marked the fifth consecutive year that the fish habitat enhancement project has beencompleted. An excellent example of cooperation between constituents and cooperating partners,the IDNR and Exelon has joined with several representatives of local bass clubs to install artificialhabitat units at various locations throughout the lake. These units, which were purchased byBraidwood Station, were generally placed in 8 feet of water at locations identified by members ofbass clubs and to date over 400 of these units have been deployed.In early June, 2010, the DC electro fishing unit was utilized at settings which have been showneffective for the collection of blue and flathead catfish. The following settings were used toobtain amperage of close to one (1): pps -7.5, "height" setting @ of roughly 15-20%.Approximately two hours of effort were expended with no blue or flathead catfish collected. Theunit did succeed in bringing small channel catfish skittering across the surface. Watertemperature ranged from 880 to 950F. In early October 2011, blue catfish were captured at therate of nearly one per minute during ancillary sampling to target this species. At that time, the sameelectro fishing rig was used but at the following settings: 60 pps, low range setting at 21% drawing7-8 amps.In late July, 2011, a consultant retained by Exelon conducting zebra mussel surveillance on thelake had reported a fair number of threadfin and gizzard shad were dying and floating up alongthe area of the south boat ramp. Surface water temperatures were in the mid-90's F whiledissolved oxygen readings ranged from 4 to 7 ppm. No fish losses were reported after that and noother species were involved in this particular loss.25 M Exelon Generation@WILDLIFE HABITAT COUNCILThe fall complete (standardized) fish population survey was conducted October 6-8, 2011 withsampling effort consisting of 470 minutes (7.8 hours) of DC daylight electro fishing, a decreaseof 3.1% from the previous survey. Electro fishing runs in the warm pool were reduced due toextremes in water temperature which in some cases approached 105°F/40.60C. D C electro fishingeffort yielded a total of 2,447 fish representing 25 species and one hybrid. This represents a55.6% reduction from the total number of fish which were collected in 2009. However, the 2009collection was heavily influenced by large numbers of bluegills and spotfin shiners, both ofwhich were subsampled which results in expanded numbers. While some sub-sampling occurred in2011, it was not done to the extent it was in 2009.TABLE 1. 2011 FISH COLLECTION SUMMARYNO. COLLECTED BY GEAR TOTAL NO. TOT. WT.SPECIES .TYPE COLLECTED (LBS.)--TCOLLECTEDEF GN TN______LARGEMOUTH BASS 352 352 405.27BLUEGILL 794 794 84.56GREEN SUNFISH 18 18 1.27LONGEAR SUNFISH 21 21 0.86REDEAR SUNFISH 2 2 0.36HYBRID SUNFISH 5 5 0.55ORANGESPOT SUNFISH550.29-I I -- 1 _______________CHANNELCATFISH210210135.23BLUE CATFISH 56 56 70.42SMALLMOUTH BASS 4 4 6.72FRESHW ATER DRUM 1 I 0.98YELLOW BULLHEAD 8 8 1.14CARP 191 191 635.17GIZZARD SHAD 320 320 109.52THREADFIN SHAD 263 263 8.2SPOTFIN SHINER 113 113 0.2BLUNTNOSE MINNOW 19 19 0.01FATHEAD MINNOW I I 0.01BULLHEAD MINNOW 3 3 0.01GOLDEN SHINER I 1 0.03MOSQUITO FISH 4 4 0.01SAND SHINER 23 23 0.02EMERALD SHINER 4 4 0.01MIMIC SHINER I I 0.01SPOTTAIL SHINER 27 27 0.09BROOK SILVERSIDE I I 0.01TOTAL 2447 2447 1460.9526 AdNMFAWAVAWWExelon Generation@WILDLIFE HABITAT COUNCIVPercent contribution to the total fish collection by each species, Braidwood Lake 2011 fall fishpopulation survey. Minnow species (not including common carp) excluded.I POOR QUALITY ORIGINALI27 M Exelon Generation,WILDLIFE HABITAT COUNCIL"BRAIDWOOD LAKE2011 COLLECTION by NUMBERMinnow Species except Carp0 0.5%E SPOTFIUSHINuR" BLUNT NOSE MINNOW* FATHEAD MINNOW* BULLHEAD MINNOW* GOLDENSHINERa MOSQUITO FISHo SANDSHINBEo EMERALOSHINERt MIMICSHINERo SPOTTAIL SHINERa 6lOOK LVERMIoE034Percent contribution to the total fish collection by minnow species (excluding carp), BraidwoodLake 2011 fall fish population survey.I POOR QUALITY ORIGINAL I28 AdýAINEYAMWExelon Generation,WILDLIFE HABITAT COUNCILSBRAIDWOOD LAKE2011 COLLECTION by WEIGHTexcluding Minnows except carp0.6%/43.5~*LAAGDflOUTHBASS*BLUEGILL*GREDISUNFGHOLONGEARSUNFIS"* REDEARSUNFBM* HYORIDSUNFISHU ORANGESPOT. SUNFES* CHANNEL CATFISHcoSLUECATFSH*$MALLMOUTH BASSoFRBNWATEROtORUM32YELOW SULU14EADCARPoGIZZARDSMAD-HREADFINSHADL610: 0.1%0.1%0.0%0%on0.0%1.'-.- II +4V..L7b -'LO.1I%Common carp and gizzard shad accounted for more than one-half the total biomass sampled in2011, although the sport fish contingent remains strong. It is very possible that as the blue catfishpopulation expands and if striped bass hybrids recruit favorably, a greater percentage of the lake'sproduction will be in sport fish. The chart above does not take into account the contribution of theeleven (1I) minnow species which were collected. These fish, however, would not make anappreciable contribution to the overall amount of fish biomass which was collected.POOR QUALITY ORIGINAL29 -- Exeton Generation.WILDLIFE HABITAT COUNCILTABLE 2.2011 FISH COLLECTION by STATIONSPECIES COLLECTION BY STATION TOTALS1 2 3LARGEMOUTH BASS 16 135 201 352BLUEGILL 126 191 477 794jREENSUNFISH 2 2 14 18LONGEAR SUNFISH 1 6 14 21REDEAR SUNFISH 1 1 21-IYBRID SUNFISH 1 1 3 5)RANGESPOT. 5 5SUNFISHCHANNELICATFISH 32 65 113 210BLUE CATFISH 55 1 563MALLMOUTH BASS 4 4FRESHWATER DRUM I IYELLOW BULLHEAD 8 8CARP 49 89 53 191OIZZARD SHAD 28 220 72 320rTJR Af11INJ Q14Afl9I977I --_______I~t~~+/- ISPOTFIN SHINER19589113BLUNTNOSE 2 17 19WINNOWFATHEAD MINNOW I IBULLHEAD MINNOW 3 3SOLDEN SHINER I IMOSQUITO FISH 3 I 4SAND SHINER 22 I 23EMERALDSHINER 4 4MIMIC SHINER I ISPOTTAILSHINER 7 20 27BROOK SILVERSIDE I ITOTAL 368 772 1307 2447As was stated previously, some electro fishing runs in Station I were abbreviated due to extremelywarm water temperatures. Two historical electro fishing runs were also eliminated for like reasons.As illustrated in Table 2, catch rates increased from Station 1 to 3 as water temperaturesmoderated. However, some species like blue catfish were collected predominantly from Station 1.Channel catfish exhibited an opposite trend. Gizzard shad were collected in higher numbers atStation 2 while threadfin shad showed an affinity for the somewhat cooler water of Station 3.30 Z Exelon Generation.WILDLIFE HABITAT COUNCILAQUATIC VEGETATION: Rooted aquatic macrophytes remain nearly non-existent due to thepreponderance of phytoplankton. No evidence of water willow, which was introduced in 2008, wasobserved during this survey.The following water chemistry parameters were obtained during the course of the three-day survey:Parameter Sta. I Sta. InDate 10/4 10/5Time (hr) 0908 1040Air Temp. 70.0°F/21. 1°C 73.0°F/22.80CWater Temp. 84.50F/29.40C 80. 1 °F/26.70CConductivity (Itmhos/cm) 1027 1016pH 9.12 9.02Secchi (ft.) 1.2 1.0SPECIES ACCOUNTS:Refer to the Fish Collection Summary table and graph, as well as the Fish Population Analysis(F.M. 12.0) for additional information.Largemouth Bass: Results from the 2011 biennial fall survey were very encouraging as ,electrOafishing catc-h _rates(CPE) improved-toIlevek not seen in yearsC tPFfr Al qi7 t e. .combined approached one per minute (0.72 bass/minute) which exceeds the long-term average.And while bass less than 6 inches were well-represented (31% of total bass collection), theprevalence of larger, older bass indicates favorable recruitment of stocked fish. Since 2006,stocking rates have been variable with as many as 112,724 stocked in 2008 to as few as 18,158stocked the following year. Stocked bass have averaged 4 inches in length and are generallyreleased in August. Stocking rates for bass for the last two years have been fairly comparable atroughly 20 per acre. The YAR value declined from 1.8 in 2009 to 0.8 in 2011 as bass 6 inchesand under fell by 26.5% between the two surveys. However, the increased number of stock sizebass also influenced this index. Recruitment success is also reflected by an increase in theaverage size bass collected in 2011 in comparison to the previous survey and at 10.6" (269 mm)is very close to the long-term average. Other population structural indices improved as well; thepercentage of adult bass which were 15 inches and larger improved greatly over the 2009 survey tothe point of exceeding the long-term average. Nearly 45% of the adult bass collected in 2011 metor exceeded 15 inches. The density of legal size bass (18 inches plus) remained relativelyunchanged but favorable recruitment should equate to improved densities of legal size bass in thecoming years. The fall 2011 survey resulted in a total collection of 352 largemouth bass whichrepresents a 10.5% increase over the previous survey and continues an upward trend in the totalnumber of bass which are collected in the main fall survey. Largemouth captured in the fall 2011survey ranged from 110mm/4.3" to 50mm/20.1." As expected, the majority of all bass collected(95.5%) were captured from areas of the lake which typically have more suitable watertemperatures. Population parameters reflect the increase in the collection of larger bass as PSDand RSD values show. The continued effect of the restrictive angler harvest regulation isreflected in RSD values as the percentage of 15 inch and larger fish increased by 50%.31 AmwýAJONMrExelon Generation.WILDLIFE HABITAT COUNCILThere is every indication that the largemouth bass population will continue its steadyimprovement as the overall condition of the population was very good; no length groupsurveyed exhibited relative weight values below the 100 percentile and bass 6 inches and largerhad an average Wr (Relative weight) value of 107.POPULATION STRUCTURAL INDICES -LARGEMOUTH BASSCPE STOCK SIZE YAR AVERAGE PSD RSD-15 RSD-18(bass/mmn.) LARGER LENGTH1996 0.7/min. 110 2.9 data unavailable 79 171997 0.4/main. 176 0.1 336mm/13.1" 87 37 91999 1.32/min. 155 5.1 154mm/6.0" 67 37 42001 0.64/min. 326 0.1 317mi/12.4" 54 29 32003 0.62/min. 217 0.5 290mm/i 1.3" 87 56 52005 0.17/min. 69 0.2 316mm/12.4" 86 44 42007 0.69/min. 52 5.8 158mm/6.2" 64 23 02009 0.64/min. 131 1.8 221imm8.6" 66 30 42011 0.72/main. 192 0.6 269mm/10.6" 93 45 3Average, ,96-,,09 0.65/min. 155 2.1 256nun/10. 1" 74 34 4Stock size = 8 inchesQualit. size = 12 inchesDesirable YAR = 1 -10Desirable PSD = 30% -60% (quality/stock)wDesirable UPE = I bass perfishingminute of electro Desirable R."D 5 = 107b -20%Smallmouth Bass: This species has never been collected in any appreciable number in any DNRsurvey, the greatest collections coming in 1991 and 1997 at 42 fish. A total of four (4)smallmouth bass were collected in 2011 ranging from 230mm/9.1" to 449mm/17.7". All fish werecollected in close proximity to the lake's water make-up structure which is a strong indication thatsmallmouth bass are introduced into the lake via make-up water which originates from theKankakee River.Redear Sunfish: A total of just two redear sunfish were collected measuring from 152mm/6.0" to172mm/6.8". Redear sunfish have been stocked on several occasions, most recently in 2011. Theyhave never been collected with any regularity or in any significant number nor were any recordedduring the 2007 creel survey.Bluegill: The collection of this species has been greatly influenced by sub-sampling which hasaffected the values for both number collected and catch rate. In 2011 no sub-sampling for bluegillsoccurred so the number of fish listed is what was actually collected; a total of 794 bluegills werecaptured ranging from 20mm/0.8" to 189mm17.5". The density of larger bluegills fell from theprevious survey as evidenced by declines in both PSD and RSD indices. Most all length groupssurveyed exhibited fair body condition with an overall average Wr of 98.32 ExelonGeneration,WILDLIFE HABITAT COUNCILPOPULATION STRUCTURAL INDICES -BLUEGILLYEAR- CPE(bluegill/mm.) STOCK SIZE & AVERAGE PSD RSD-8____EA___. _P_(bui_____ LARGER LENGTH *__RD996 0.6/min. 141 data unavailable 14 01997 0.4/min. 221 12m1 rm/4.71" 21 01999 1.77/main. 835 I 15mm/4.5" 13 02001 3.2/rain. 1462 123mm/4.8" 27 02003 2.58/min. 1325 151 mm/5.9" 62 0.72005 2.54/min. 1303 131 mm/5. I" 24 0.12007 7. l/min. 2526 13m1 rm/5. I" 33 02009 4.70/min. 1376 108mm/4.2" 40 0.42011 1.69/min. 783 134mm=5.3" 22 0Average, 096-,,09 2.86/main. 1148 126mm/4.9" 29 0.1Stock size = 3 inches Desirable PSD = 20% -40% (qualit y/stock)QualitY size = 6 inches Desirable RSD-8 = 5% -10%Blue Catfish: Stocked for several years, blue catfish had been eluding collection in fall surveysuntil 2011 when they were captured with some regularity. As stated in the opening remarks of thisreport, most all fish were collected in the warmest section of the lake and at DC settings thought tobe too high to effectively sample this fish. The fall survey yielded a total of 56 ranging in lengthfrom 200mm/7.9" to 819mm/32.3". Many more fish were observed than were actually collected.Additional collection eftort was expended on October 6 which indicated that the fish had apreference for the warmer water areas; CPE fell appreciably in the cooler sections of the lake. Inwater that was 93°F/33.9°C CPE eclipsed one per minute with fish collected ranging from221mm/8.8" to 777mm/31.1" and averaging 485mm/19.4". Many more fish were brought to thesurface, as is their typical reaction to the electrical current, but without the aid of a chase boatavoided capture. This appears to be a successful stocking program.Channel Catfish: Following one of the poorest collections in many years, the 2011 surveyprovided much better results in terms of the number of channel catfish which were collected.Combined electro fishing effort yielded a total of 210 fish ranging in length from 90 mm/3.5" to699mm/27.6". CPE was more than double from the previous survey and actually exceeded the long-term average and while electro fishing is generally not considered a reliable gear type for theevaluation of catfish, it is used exclusively in DNR fall surveys due to high mortalities ratesassociated with gill netting. If necessary, netting data can be obtained from the private consultantpresently employed by Exelon to conduct additional fish population analyses. The average sizechannel catfish collected in fall surveys has trended downward since 2005 and the average size fishcollected in 2011 was nearly one full inch shorter than the long-term average. Less than 5% (3.8) ofthe population met or exceeded what is considered "preferred" size or 24 inches. Despite theapparent abundance of small fish, body condition values did not indicate a major forage problem.With the exception of a few length groups, most exhibited Wr values which exceeded the 90percentile. The overall average relative weight value for channel catfish 8 inches and larger was 97.33 AMý411111mrAlmorExelon Generation.WILDLIFE HABITAT COUNCILPOPULATION STRUCTURAL INDICES -CHANNEL CATFISHCPE-GNYEAR (catfish/gill CPE-EF STOCK SIZE AVERAGE PSDnet) (catfish/mai.) & LARGER LENGTH1996 33.3/net data unavailable 148 data unavailable 401997 11.3/net 0.09/min. 35 254mm/9.9" 231999 37.6/net 0.0 1/min. 151 300mm/I 1.7" 382001 93.0/net 0.05/min. 197 264mm/IO.3" 312003 NA 0.71/min. 341 356mm/13.9" 212005 NA 0.25/min. 117 364mm/14.2" 212007 NA 0.58/min. 145 336mm/13.2" 412009 NA 0.19/min. 28 300mm/ 1.8" 642011 NA 0.4/min. 53 290mm/I 1.3" 60Average, ,,96-,,09 43.8/net 0.27/min. 145 31 imam/12.2" 35Stock size = II inchessize = 16 inchesDesirable PSD = 50% -70% (qualityv/tock)CPE = 4.0 fish collected per overnight gill net(250') setCrappie: No crappie of either species was collected.Threadfin Shad: Threadfin shad were initially stocked in the earlvy lQ80's to augment the forapeUbase. These stockings largely failed to recruit due to winter mortalities as the lake at that time wasambient in nature prior to Braidwood Station coming on-line. Following a large collection in 1981,threadfin shad disappeared from DNR survey collections. In 2002, 2,500 adults from LakeSpringfield were stocked and these fish have reproduced and recruited. In 2011 a total of 263 wascollected ranging from 80mm/3. I" to 149mm/5.9" averaging 106mm/4.2".YEAR A VERAGE LENGTH2003 1 lOm/4.3"2005 l!0mm/4.3"2007 122mm/4.8"2009 117mm/4.6"2011 106mrr4.2"yve. ,,03-,,09 I 15mm/4.5"34 lawýAmorlANEIVExeton Generation,WILDLIFE HABITAT COUNCILGizzard Shad: Accounting for slightly over 13% of the total fish collection, gizzard shadcaptured in the fall 2011 survey ranged from 70mm/2.8" to 399mm/15.7". Smaller fish were slightlymore prevalent than observed in 2009 and gizzard shad 6 inches and less comprised 28.4% of thecollection. Most all length groups exhibited excellent body condition with Wr (Relative weight)values which consistently exceeded the 100 percentile. Body condition decreased slightly for thelargest fish.YEAR A VERAGE LENGTH1997 270mm/10.6"1999 202mm/7.9"2001 233mm/9.1" 12003 224mm/8.7"2005 200mm/7.8"2007 241 mm/9.4"2009 243mm/9.5"Ave. ,97-,,09 228mm/8.9"2011 209mm/8.2"Carp: Common carp collected in 2011 ranged from 330mm/13.0" to 649mm/25.6". A continuingtrend, most all length groups sampled exhibit below average relative weight values, the overallrelative weight value of 76. This condition has remained unchanged from the 2005 survey.Common earm were mollected with frtnieonenv thrnorbhlit the lkek hut were 'lightlv mnre~Sprevalent at Station 2, which accounted for 46.6% of all carp which were captured.YEAR % of TOTAL BIOMASS AVERAGE LENGTHCOLLECTED1997 59.7 270mrm/10.6"1999 47.9 384mm/1 5.0"2001 64.6 438mm/17.1"2003 55.9 445mm/17.4"2005 56.5 494mm/I9.3"2007 67.9 482mm/I8.9"2009 65.0 512mm/20.0"2011 43.0 497mm/ 9.6"2012 Fish Stockings:* 22,728 2.0-inch striped bass hybrid fingerlings were released.* No largemouth bass were stocked in 2012 as all supplemental bass stockings are nowconducted on an alternating year schedule.0 Blue catfish were not stocked in 2012. The usual out-of-state provider failed to produce asufficient number of fertilized eggs for the IDNR hatchery to rear to fingerling size.35
- ExeIon Generation,WILDLIFE HABITAT COUNCIL.2012 Field Activities:" In what has become an annual event, MEHS fish habitat units purchased by Exelon'sBraidwood Generating Station were placed at various locations throughout the lake? Acooperative effort, this project has helped to solidify a working partnership between Exelon,IDNR and local bass fishing clubs. A total of 68 units were placed in groups at previouslyselected locations throughout the lake.* The summer of 2012 will be remembered as one of the hottest and driest periods ever recorded,the impacts of which affected Braidwood Lake. During the first week of July, the lake wasmonitored on several occasions to record water temperature, dissolved oxygen levels and forthe appearance of a fish loss. The warmest water temperature recorded was at the south boatramp on July 6 as a reading of 104.00F/40.4°C was obtained. On this day dissolved oxygenlevels (taken in the morning) ranged from 3.0 to 4.7ppm. By July 10 temperatures hadmoderated but dead fish were observed at several locations. Fish observed were in varyingstages of decay and carcasses could be seen on the bottom. Species observed included (inapproximate order of abundance) gizzard and/or threadfin shad, channel catfish, blue catfish,largemouth bass, common carp and hybrid striped bass." Ancillary sampling was completed in the fall, 2012 to evaluate the impact of the severeconditions Braidwood Lake experienced during the excessive heat of the summer. Catch rates(CPE) for largemouth bass at nearly all of the selected sampling locations equaled or exceededCPE values from the preceding year. One location in particular, had catch rates which weremore than double and 42% of those bass collected were 15 inches and larger with manye.ceeding --iinches. Almost without excextion,-l6 gemouth bass-colUcted-in-this-s wveyexhibited excellent body condition which should bode well in terms of over-winter survivaland result in excellent angling opportunities in 2013. Both gizzard and threadfin shad, twospecies which comprised the majority of the fish event, were fairly common at most electrofishing runs. Spotfin shiners were also very abundant. Blue catfish were not collected to anygreat extent in this survey, but high winds prevented sampling at some of the better locations.Several hybrid striped bass were collected and these fish ranged from 13.4" to 18.5", averagingnearly 17". Very good growth in light of the fact that they were first stocked as 2-inchfingerlings in 2011.* The IHSA held the sectional bass fishing qualifier at Braidwood Lake in late April with 13teams competing. All teams were successful in weighing in fish and limit weights rivaled someof the best sectional lakes state-wide. It is anticipated that Braidwood will be a preferredsectional location in the coming year.36 M Exelon Generation,WILDLIFE HABITAT COUNCIL2013 Braidwood Lake Proposed Fisheries Field Activities:Fish Stockings:Additions of fingerling largemouth bass, striped bass hybrid and blue catfish fingerlings will berequested.Field Activities:* Continuation of habitat enhancement project, in concert with Braidwood site staff." Continued evaluation of habitat.* Conduct water temperature/dissolved oxygen profiles during the summer." Conduct the biennial fall survey.* No modifications to the present fish harvest regulations for the upcoming year.* New fishing regulation signs are still needed.4.3. New ProjectsThe Wildlife Team is considering adding another project in the future, Avian Management andMonitoring. There are existing songbird nest boxes around the perimeter of the lake that could berepaired, catalogued and monitored. Additionally, the Wildlife Team could utilize Exelonemployees and other groups to monitor the bird use of the lake and surrounding habitat. This couldhelp to guide future restoration work to enhance the lake and surrounding area for birds.S37
'ExelonGeneration,WILDLIFE HABITAT COUNCIL5. Documentation:The following documentation supports the Braidwood Station projects that have earned certificationfrom WHC and demonstrates that the projects are ongoing. The Lake Management project is closelymonitored and managed by Exelon in partnership with IDNR, with continuing community outreachinitiatives such as the Fishing for a Cure and the State IHSA Bass fishing tournament. Thecontinued enhancement of the land and water adjacent to the Braidwood Generating Station will notonly provide a benefit to wildlife and the community, but will assist in meeting the environmentalgoals of Exelon.IDNR and Exelon Meeting NotesReview of Braidwood, Clinton and LaSalleLake Fishery and Land Management PlansFebruary 22, 2012Meeting Notes:On February 22, 2012 the following attendees met at the American Fisheries Society Meeting heldO at Starved Rock State Park to review the 2011 fishery and land management accomplishments forBraidwoodStation,_Clinton Statioaaid LaSalleCo un. Sationcling lakes and the planned 2012fishery and land management plans for these same cooling lakes:" Dan Sallee, IDNR" Rick O'Neil, IDNR* Rob Miller, IDNR Braidwood Lake Fishery Biologist" Mike Garthaus, IDNR Clinton Lake Fishery Biologist" Ken Clodfelter, IDNR LaSalle Lake Fishery Biologist" Rick Bushman, IDNR LaSalle Fish Hatchery" Mike Conlin, Retired IDNR Fisheries Chief" Jeremiah Haas, Quad Cities Station* Keith Volker, Clinton Station* John Petro, Exelon GenerationHighlights of the February 22nd discussion for Braidwood are as follows:Braidwood Lake" The plan going forward is to continue to stock blue catfish from the State's Fish Hatchery" IDNR intends to continue to work with Neal Miller at Braidwood Station to build/place morefish cribs throughout the lake.* IDNR plans to investigate stocking more hybrid stripers (47,299 1.7-inch fingerlings werestocked in 2011* April 20th- 2012 IHSA Bass Fishing State Tournament38 Exelon Generation, bJL F FJIiWILDLIFE HABITAT COUNCIL"May 191h -Fishing for a Cure Fishing TournamentBraidwood Station Cooling LakePeriod of Reporting: 1/10-12/1 1 Date of Report: 2/2/2012District Fisheries Biologist: Rob MillerManagement Activities Completed:4/9/2010 and 6/29/2011 -Installed M.E.H.S. (Marin Eco-Habitat System) units.6/10/2010 -Blue catfish survey.10/4-6/2011 -Completed biennial standardized fish population survey.Supplemental stockings: The following list summarizes fish stockings which occurred during thisreporting period.-Blue catfish: 25,324 fingerlings ranging from 5.0" to 5.3"-Largemouth bass: 87,733 fingerlings ranging from 3.5" to 4.2"-Rede Suih ,743 !-inch fng4inrgs-Bluegill: 133,403 1-inch fingerlings-Striped bass hybrids: 47,299 1.7-inch fingerlingsDiscussion of Biological Surveys Completed:2011 marked the fifth consecutive year that the fish habitat enhancement project has beencompleted. An excellent example of cooperation between constituents and cooperating partners, theIDNR and Exelon has joined with several representatives of local bass clubs to install artificialhabitat units at various locations throughout the lake. These units, which were purchased byBraidwood Station, were generally placed in 8 feet of water at locations identified by members ofbass clubs and to date over 400 of these units have been deployed.In early June, 2010, the DC electro fishing unit was utilized at settings which have been showneffective for the collection of blue and flathead catfish. The following settings were used to obtainamperage of close to one (1): peps -7.5, "height" setting @ of roughly 15-20%. Approximately twohours of effort were expended with no blue or flathead catfish collected. The unit did succeed inbringing small channel catfish skittering across the surface. Water temperature ranged from880 to 950F. In early October 2011, blue catfish were captured at the rate of nearly one per minuteduring ancillary sampling to target this species. At that time, the same electro fishing rig was usedbut at the following settings: 60 pps, low range setting at 21% drawing 7-8 amps.39 AMNýAmacyAMWExelon Generation,WILDLIFE HABITAT COUNCILIn late July, 2011, a consultant retained by Exelon conducting zebra mussel surveillance on the lakehad reported a fair number of threadfin and gizzard shad were dying and floating up along the areaof the south boat ramp. Surface water temperatures were in the mid-90's F while dissolved oxygenreadings ranged from 4 to 7 ppm. No fish losses were reported after that and no other species wereinvolved in this particular loss.The fall complete (standardized) fish population survey was conducted October 6-8, 2011 withsampling effort consisting of 470 minutes (7.8 hours) of DC daylight electro fishing, a decrease of3.1% from the previous survey. Electro fishing runs in the warm pool were reduced due to extremesin water temperature which in some cases approached 105*F/40.6*C. DC electro fishing effortyielded a total of 2,447 fish representing 25 species and one hybrid. This represents a 55.6%reduction from the total number of fish which were collected in 2009. However, the 2009 collectionwas heavily influenced by large numbers of bluegills and spotfin shiners, both of which weresubsampled which results in expanded numbers. While some sub-sampling occurred in 2011, it wasnot done to the extent it was in 2009.TABLE 1. 2011 FISH COLLECTION SUMMARYNO. COLLECTED BY GEAR TOT. WT.F ___________________ __________________T________ TOTAL NO. T T TSPECIES TYPE COLLECTED (LBS.)EF GN TN COLLECTEDLARGEMOUTH BASS 352 352 405.27BLUEGILL79479484.56BLEIL79 45GREEhN SUN FISH18181 .27LONGEARSUNFISH 21 21 0.86REDEAR SUNFISH 2 2 0.36HYBRID SUNFISH 5 5 0.55ORANGESPOT SUNFISH 5 5 0.29CHANNELCATFISH 210 210 135.23BLUE CATFISH 56 56 70.42SMALLMOUTH BASS 4 4 6.72FRESHWATER DRUM 1 I 0.98YELLOW BULLHEAD 8 8 1.14CARP 191 191 635.17GIZZARD SHAD 320 320 109.52THREADFIN SHAD 263 263 8.2SPOTFIN SHINER 113 113 0.2BLUNTNOSE MINNOW 19 19 0.01FATHEAD MINNOW 1 1 0.01BULLHEAD MINNOW 3 3 0.01GOLDEN SHINER I 1 0.03MOSQUITO FISH 4 4 0.01SAND SHINER 23 23 0.02EMERALD SHINER 4 4 0.01MIMIC SHINER I i 0.0140 Exelon Generation,WILDLIFE HABITAT COUNCIL"SPOTTAILSHINERBROOK SILVERSIDETOTALBRAIDWOOD LAKE2011 COLLECTION by NUMBERexcluding Minnows except Carp*LARGEMOUTH BASS* BUEGIL.*GREENSUNFISH*LONGEARSUNIFIH" REDEARSUNFISH* WOYRIDSU~fSH* OR1AIGespol. SUNFISH" CHANNEL CATISBH" BLUE CATFIKHU SMALLIJOSJTH BASS" FRESHWATER DRUMo YELLOW BULLHEAD.//I-//au CARP0 GIZZARD SHAD.THREADFIN SHAD!N 0.25C3 2.5%110-21 3 .1 ,U9%N. 9 10.8%Percent contribution to the total fish collection by each species, Braidwood Lake 2011 fall fishpopulation survey. Minnow species (not including common carp) excluded.POOR QUALITY ORIGINAL'I41 ZM Exelon Generation,WILDLIFE HABITAT COUNCILBRAIDWOOD LAKE2011 COLLECTION by NUMBERMinnow Species except CarpD3 0.5%ESPOTFIMSHINERNO8LUNTNO eMINMOWn FATHEAD MINNOWO BULLHEAD MNNOWo GOL DEN SHINERMIVIOSQUITO FISHo SANDSHINERo EMERALDSHINMEa MIKICSHINERaSPOTTAIL SHINERa BROOKSILVERSIDE03Percnt ontrbuton o th toal fsh ollctio byminnw secis (ecluing arp, lraidoodLakPercent contribution to the total fish collection by minnow species (excluding carp), Braidwood Lake2011 fall fish population survey.POOR QUALITY ORIGINAL42 --" Exelon Generation.WILDLIFE HABITAT COUNCIL"BRAIDWOOD LAKE2011 COLLECTION by WEIGHTexcluding Minnows except carp0.6%---" 7.5%/,///0 LARGENOUIM BASS0 BLUEGILLa GREENSUNFISH* LONGEARSUIJFSH* RWEARSUNFISH* KYBRIOSUMNF"* ORANGESPOT.SUNFS"* CHANNEL CATFISH* BLUE CATFISHNSMALLMKIC)TH BASSoIRESMAT ER DRUMoVELLOW BULLHEAD* ýCARP* GIZZARD SHAD,43,5%\0 , 1%ýý Q0.1%____0.0%\1_0.0%14~ -u-0.1% -'0O.%T. HREADFIN SHADCommon carp and gizzard shad accounted for more than one-half the total biomass sampled in 2011,although the sport fish contingent remains strong. It is very possible that as the blue catfish populationexpands and if striped bass hybrids recruit favorably, a greater percentage of the lake's productionwill be in sport fish. The chart above does not take into account the contribution of the eleven (11)minnow species which were collected. These fish, however, would not make an appreciablecontribution to the overall amount of fish biomass which was collected.I "ORQUAL11y ORIGINAL43 'M Exelon Generation,WILDLIFE HABITAT COUNCIL"TABLE 2.2011 FISH COLLECTION by STATIONSPECIES COLLECTION BY STATION TOTALS1 2 3LARGEMOUTH BASS 16 135 201 352BLUEGILL 126 191 477 794GREEN SUNFISH 2 2 14 18LONGEAR SUNFISH 1 6 14 21REDEARSUNFISH I I 2HYBRID SUNFISH 1 I 3 5ORANGESPOT SUNFISH 5 5CHANNEL CATFISH 32 65 113 210BLUE CATFISH 55 I 56SMALLMOUTH BASS 4 4FRESHWATER DRUM I IYELLOW BULLHEAD 8 8CARP 49 89 53 191GIZZARD SHAD 28 220 72 320THREADFIN SHAD 35 21 207 263SPOTFIN SHINER 19 5 89 113BLUNTNOSE MINNOW21719BLUNTNOSE MINNOW 2 17 19________________________________ a __________ a aFATHEAD MINNOWIIBULLHEAD MINNOW 3 3GOLDEN SHINER I IMOSQUITO FISH 3 I 4SAND SHINER 22 I 23EMERALD SHINER 4 4MIMIC SHINER I ISPOTTAIL SHINER 7 20 27BROOK SILVERSIDE I ITOTAL 368 772 1307 2447As was stated previously, some electro fishing runs in Station 1 were abbreviated due to extremelywarm water temperatures. Two historical electro fishing runs were also eliminated for like reasons.As illustrated in Table 2, catch rates increased from Station I to 3 as water temperatures moderated.However, some species like blue catfish were collected predominantly from Station 1. Channelcatfish exhibited an opposite trend. Gizzard shad were collected in higher numbers at Station 2while threadfin shad showed an affinity for the somewhat cooler water of Station 3.AQUATIC VEGETATION: Rooted aquatic macrophytes remain nearly non-existent' due to thepreponderance of phytoplankton. No evidence of water willow, which was introduced in 2008, wasobserved during this survey.44 Exelon Generation,WILDLIFE HABITAT COUNCILThe following water chemistry parameters were obtained during the course of the three day survey.Parameter Sta. I Sta. IllDate 10/4 10/5Time (hr) 0908 1040Air Temp. 70.00F1/21. 10C 73.0017/22.80CWater Temp. 84.50F/29.40C 80.1 °F/26.70CConductivity (g.mhos/cm) 1027 1016pH 9.12 9.02Secchi (ft.) 1.2 1.0SPECIES ACCOUNTS:Refer to the Fish Collection Summary table and graph, as well as the Fish Population Analysis (F.M.12.0) for additional information.Largemouth Bass: Results from the 2011 biennial fall survey were very encouraging as electrofishing catch rates (CPE) improved to levels not seen in several years. CPE for all sizes combinedapproached one per minute (0.72 bass/minute) which exceeds the long-term average. And whilebass less than 6 inches were well-represented (31% of total bass collection), the prevalence oflarger, older bass indicates favorable recruitment of stocked fish. Since 2006, stocking rates havebeen variable with as many as 112,724 stocked in 2008 to as few as 18,158 stocked the following pyear. Stocked bass have averaged 4 inches in length and are generally released in August. Stockingrates for bass for the last two years have been fairly comparable at roughly 20 per acre. The YARvalue declined from 1.8 in 2009 to 0.8 in 2011 as bass 6 inches and under fell by 26.5% between thetwo surveys. However, the increased number of stock size bass also influenced this index.Recruitment success is also reflected by an increase in the average size bass collected in 2011 incomparison to the previous survey and at 10.6" (269 mm) is very close to the long-term average.Other population structural indices improved as well; the percentage of adult bass which were 15inches and larger improved greatly over the 2009 survey to the point of exceeding the long-termaverage. Nearly 45% of the adult bass collected in 2011 met or exceeded 15 inches. The density oflegal size bass (18 inches plus) remained relatively unchanged but favorable recruitment shouldequate to improved densities of legal size bass in the coming years. The fall 2011 survey resulted ina total collection of 352 largemouth bass which represents a 10.5% increase over the previoussurvey and continues an upward trend in the total number of bass which are collected in the mainfall survey. Largemouth captured in the fall 2011 survey ranged from I IOmm/4.3" to 509mm/20.1".As expected, the majority of all bass collected (95.5%) were captured from areas of the lakewhich typically have more suitable water temperatures. Population parameters reflect theincrease in the collection of larger bass as PSD and RSD values show. The continued effect of therestrictive angler harvest regulation is reflected in RSD values as the percentage of 15 inch andlarger fish increased by 50%.There is every indication that the largemouth bass population will continue its steady improvementas the overall condition of the population was very good; no length group surveyed exhibited45 'Exeton Generation,WILDLIFE HABITAT COUNCILrelative weight values below the 100 percentile and bass 6 inches and larger had an(Relative weight) value of 107.POPULATION STRUCTURAL INDICES -LARGEMOUTH BASSaverage WrYEAR CPE STOCK SIZE YAR AVERAGE PSD RSD""5 RSD18(bass/min.) & LARGER LENGTH D RS1996 0.7/min. 110 2.9 data unavailable 79 17 ?1997 0.4/min. 176 0.1 336mm/13.I" 87 37 91999 1.32/min. 155 5.1 154mnV6.0" 67 37 42001 0.64/min. 326 0.1 317mm/12.4" 54 29 32003 0.62/mn. 217 0.5 290mm 11.3" 87 56 52005 0.17/min. 69 0.2 316mm/12.4" 86 44 42007 0.69/min. 52 5.8 158mm/6.2" 64 23 02009 0.64/min. 131 1.8 221 mm/8.6" 66 30 42011 0.72/min. 192 0.6 269mm 10.6" 93 45 3Average, ,,96-,,09 0.65/min. 155 2.1 256mm/10.1" 74 34 4Stock size = 8 inchesQualif. size = 12 inchesDesirable CPE = I bass per minute ofIArnt Desirable YAR = / -10Desirable PSD = 30% -60% (qualii /stock)Desirable RSD-15 = 10% -20%vSmallmouth Bass: This species has never been collected in any appreciable number in any DNRsurvey, the greatest collections coming in 1991 and 1997 at 42 fish. A total of four (4) smallmouthbass were collected in 2011 ranging from 230mm/9.1" to 449mm/17.7". All fish were collected inclose proximity to the lake's water make-up structure which is a strong indication that smallmouthbass are introduced into the lake via make-up water which originates from the Kankakee River.Redear Sunfish: A total of just two redear sunfish were collected measuring from 152mm/6.0" to172mm/6.8". Redear sunfish have been stocked on several occasions, most recently in 2011. Theyhave never been collected with any regularity or in any significant number nor were any recordedduring the 2007 creel survey.46 E o,AMW Exelon Generation,WILDLIFE HABITAT COUNCILVBluegill: The collection of this species has been greatly influenced by sub-sampling which hasaffected the values for both number collected and catch rate. In 2011 no sub-sampling for bluegillsoccurred so the number of fish listed is what was actually collected; a total of 794 bluegills werecaptured ranging from 20mm/0.8" to 189mm17.5". The density of larger bluegills fell from theprevious survey as evidenced by declines in both PSD and RSD indices. Most all length groupssurveyed exhibited fair body condition with an overall average Wr (Relative weight) of 98.POPULATION STRUCTURAL INDICES -BLUEGILLYEAR CPE STOCK SIZE & AVERAGE PSD RSD4YEAR_____ (bluegill/min.) LARGER LENGTH PSD _SD-81996 0.6/min. 141 data unavailable 14 01997 0.4/min. 221 121 mm/4.7" 21 01999 1.77/min. 835 I 15mm/4.5" 13 02001 3.2/min. 1462 123mm/4.8" 27 02003 2.58/min. 1325 151 rmm/5.9" 62 0.72005 2.54/min. 1303 131mm/5.1" 24 0.12007 7. I/min. 2526 13 rmm/5. I" 33 02009 4.70/min. 1376 i108mm/4.2" 40 0.4a-,nl ILI--.. --11A/. I I I II[01 o*uj 6Average, ,96-,,09 2.86/min. 1148 126mm/4.9" 1 29 0.1Stock size = 3 inchesQuality size = 6 inchesDesirable PSD = 20% -40% (quality.stock)Desirable RSD-8 = 5% -10%Blue Catfish: Stocked for several years, blue catfish had been eluding collection in fall surveys until2011 when they were captured with some regularity. As stated in the opening remarks of this report,most all fish were collected in the warmest section of the lake and at DC settings thought to be toohigh to effectively sample this fish. The fall survey yielded a total of 56 ranging in length from200mm17.9" to 819mm/32.3". Many more fish were observed than were actually collected.Additional collection effort was expended on October 6 which indicated that the fish had apreference for the warmer water areas; CPE fell appreciably in the cooler sections of the lake. Inwater that was 93°F/33.9°C CPE eclipsed one per minute with fish collected ranging from221mm/8.8" to 777mm/31.1" and averaging 485mm/19.4". Many more fish were brought to thesurface, as is their typical reaction to the electrical current, but without the aid of a chase boatavoided capture. This appears to be a successful stocking program.Channel Catfish: Following one of the poorest collections in many years, the 2011 survey providedmuch better results in terms of the number of channel catfish which were collected. Combinedelectro fishing effort yielded a total of 210 fish ranging in length from 90 mm/3.5" to 699mm/27.6".CPE was more than double from the previous survey and actually exceeded the long-term averageand while electro fishing is generally not considered a reliable gear type for the evaluation ofcatfish, it is used exclusively in DNR fall surveys due to high mortalities rates associated with gillnetting. If necessary, netting data can be obtained from the private consultant presently employed47 'Exelon Generation.WILDLIFE HABITAT COUNCILby Exelon to conduct additional fish population analyses. The average size channel catfish collectedin fall surveys has trended downward since 2005 and the average size fish collected in 2011 wasnearly one full inch shorter than the long-term average. Less than 5% (3.8) of the population met orexceeded what is considered "preferred" size or 24 inches. Despite the apparent abundance of smallfish, body condition values did not indicate a major forage problem. With the exception of a fewlength groups, most exhibited Wr values which exceeded the 90 percentile. The overall averagerelative weight value for channel catfish 8 inches and larger was 97.POPULATION STRUCTURAL INDICES -CHANNEL CATFISHCPE-GN CPE-EF SIZE AVERAGEYEAR (catfish/gill (catfish/ain.) SIZE & LENGTH PSDnet) LARGER1996 33.3/net data unavailable 148 data unavailable 401997 11.3/net 0.09/min. 35 254mm=9.9" 231999 37.6/net 0.01/min. 151 300mm/i 1.7" 382001 93.0/net 0.05/min. 197 264mmn/10.3" 312003 NA 0.7 I/min. 341 356mm/13.9" 212005 NA 0.25/min. 117 364mm/14.2" 212007 NA 0.58/min. 145 336mm/13.2" 41!2009 NA 0.19/min. 28 300mm/I 1.8" 642011 NA 0.4/min. 53 290mm/I 1.3" 60Stock ize I incheA4l QI01-A' "11171;IAC'211 retail"1 "1nnvw..ia~N.. ..U~..7 ~rJ.U~uIIfl. u.s. ,,a,,u.. _____________________ ii. **I~IU *L.L ________________________Stock size = I1I inchesQuality size = 16 inchesDesirable PSD = 50% -70% (qualit./stock)CPE = 4.0 fish collected per overnight gill net(250') setCrappie: No crappie of either species was collected.Threadfin Shad: Threadfin shad were initially stocked in the early 1980"s to augment the foragebase. These stockings largely failed to recruit due to winter mortalities as the lake at that time wasambient in nature prior to Braidwood Station coming on-line. Following a large collection in 1981,threadfin shad disappeared from DNR survey collections. In 2002, 2,500 adults from LakeSpringfield were stocked and these fish have reproduced and recruited. In 2011 a total of 263 werecollected ranging from 80mm/3. I"to 149mm/5.9"averaging 106mm/4.2".YEAR AVERAGE LENGTH2003 11 Omr/4.3"2005 1 10mm/4.3"2007 t22mm/4.8"2009 117mmn/4.6"2011 106mm/4.2"Ave. ,,03-,09 115mm/4.5"48 Am Exeton Generation,WILDLIFE HABITAT COUNCILGizzard Shad: Accounting for slightly over 13% of the total fish collection, gizzard shad captured inthe fall 2011 survey ranged from 70mm/2.8" to 399mm/15.7". Smaller fish were slightly moreprevalent than observed in 2009 and gizzard shad 6 inches and less comprised 28.4% of thecollection. Most all length groups exhibited excellent body condition with Wr (Relaive weight)values which consistently exceeded the 100 percentile. Body condition decreased slightly for thelargest fish.YEAR AVERAGE LENGTH1997 270mni/10.6"1999 202mm/7.9"2001 233mnm9. I"12003 224mm/8.7"2005 200mm/7.8"2007 241 mmI9.4"2009 243mm19.5"Ave.,,97-,,09 228mzn/8.9"2011 209mm/8.2"CMa: Common carp collected in 2011 ranged from 330mm/13.0"to 649mm/25.6".A continuingtrend, most all length groups sampled exhibit below average relative weight values. The overallweight value of 76. This condition has remained unchanged from the 2005 survey. Common carpwere collected with similar frequency throughout the lake but were slightly more prevalent at9-WVfhtL k:'h~llttt fltkf ett UP3t, Pi .f lA % t.fl PrP .2U,.I wCC Mttt*.....% of TOTAL BIOMASS AVERAGECOLLECTED LENGTH1997 59.7 270mm/10.6"1999 47.9 384mm/15.0"2001 64.6 438mm/17.1"2003 55.9 "45Vm/17.4"2005 56.5 494mm/19.3"2007 67.9 482mm/18.9"2009 65.0 512mam/20.0"2011 43.0 497mm/19.6"49 Zm Exeton Generation,WILDLIFE HABITAT COUNCIL"IDNR and Exelon Meeting NotesReview of Braidwood, Clinton and LaSalleLake Fishery and Land Management PlansMarch 6, 2013Meeting Notes:On March 6, 2013 the following attendees met during lunch at the American Fisheries Society (AFS)Meeting held at Rend Lake Conference Center to review the 2012 fishery and land managementaccomplishments for Braidwood Station, Clinton Station and LaSalle County Station cooling lakesand the planned 2013 fishery and land management plans for these same cooling lakes:" Rob Miller, IDNR Braidwood Lake Fishery Biologist" Mike Garthaus, IDNR Clinton Lake Fishery Biologist" Ken Clodfelter, IDNR LaSalle Lake Fishery Biologist* Jeremiah Haas, Quad Cities StationHighlights of the March 6, 2013 discussion for Braidwood are as follows:Braidwood LakeNothing unusual to report outside of those notes already submitted. Rob would be interestedin if itihy wore available as well as hybrid striped bass if they are not availablefrom state hatcheries. Discussed lake fish monitoring programs that ended in 2012 (conductedby HDR Engineering).Braidwood Station Cooling LakeIDNR District Fisheries Biologist: Rob Miller2012 Fish Stockings:* 22,728 2.0-inch striped bass hybrid fingerlings were released.* No largemouth bass were stocked in 2012 as all supplemental bass stockings are nowconducted on an alternating year schedule.* Blue catfish were not stocked in 2012. The usual out-of-state provider failed to produce asufficient number of fertilized eggs for the [DNR hatchery to rear to fingerling size.2012 Field Activities:* In what has become an annual event, MEHS fish habitat units purchased by Exelon'sBraidwood Generating Station were placed at various locations throughout the lake. A1cooperative effort, this project has helped to solidify a working partnership between Exelon,IDNR and local bass fishing clubs. A total of 68 units were placed in groups at previouslyselected locations throughout the lake.50 Exelon Generation.WILDLIFE HABITAT COUNCIL" The summer of 2012 will be remembered as one of the hottest and driest periods everrecorded, the impacts of which affected Braidwood Lake. During the first week of July, thelake was monitored on several occasions to record water temperature, dissolved oxygen levelsand for the appearance of a fish loss. The warmest water temperature recorded was at thesouth boat ramp on July 6 as a reading of 104.0°F/40.4°C was obtained. On this day dissolvedoxygen levels (taken in the morning) ranged from 3.0 to 4.7ppm. By July 10 temperatures hadmoderated but dead fish were observed at several locations. Fish observed were in varyingstages of decay and carcasses could be seen on the bottom. Species observed included (inapproximate order of abundance) gizzard and/or threadfin shad, channel catfish, blue catfish,largemouth bass, common carp and hybrid striped bass." Ancillary sampling was completed in the fall, 2012 to evaluate the impact of the severeconditions Braidwood Lake experienced during the excessive heat of the summer. Catch rates(CPE) for largemouth bass at nearly all of the selected sampling locations equaled or exceededCPE values from the preceding year. One location in particular had catch rates which weremore than double and 42% of those bass collected were 15 inches and larger with manyexceeding 18 inches. Almost without exception, largemouth bass collected in this surveyexhibited excellent body condition which should bode well in terms of over-winter survivaland result in excellent angling opportunities in 2013. Both gizzard and threadfin shad, twospecies which comprised the majority of the fish loss event, were fairly common at mostelectro fishing runs. Spotfin shiners were also very abundant. Blue catfish were not collectedto any great extent in this survey, but high winds prevented sampling at some of the betterlocations. Several hybrid striped bass were collected and these fish ranged from 13.4" to18.5". averaging naty_ VJery godgrnwth in light aLthefacLthat they e r-e-fst.soekedas 2-inch fingerlings in 2011.* The IHSA held the sectional bass fishing qualifier at Braidwood Lake in late April with 13teams competing. All teams were successful in weighing in fish and limit weights rivaledsome of the best sectional lakes state-wide. It is anticipated that Braidwood will be a preferredsectional location in the coming year.2013 Braidwood Lake Proposed Fisheries Field Activities:Fish Stockings:Additions of fingerling largemouth bass, striped bass hybrid and blue catfish fingerlings will berequested.Field Activities:0 Continuation of habitat enhancement project, in concert with Braidwood site staff.* Continued evaluation of habitat.0 Conduct water temperature/dissolved oxygen profiles during the summer.0 Conduct the biennial fall survey.* No modifications to the present fish harvest regulations for the upcoming year.0 New fishing regulation signs are still needed.51 Exelon Generation,WILDLIFE HABITAT COUNCILCommunity Outreach Documentation:(See attachments)52 WILDLIFE HABITAT COUNCILVOctober 18, 2013 NON-EXELON
Dear Ms. O'Connor:
Congratulations! The Wildlife Habitat Council (WHC) commends the wildlife team at ExelonCorporation's Braidwood Generating Station on achieving Wildlife at Work recertification.You can remain Wildlife at Work certified until 2015 if you continue to maintain and documentthe program as you have so successfully done to date. We encourage you to contact ShelleyCabrera (scabrera amwildlifehc.org), WHC Midwest Regional Biologist, for recommendations onmaintaining and expanding your program.To further congratulate you on a job well done, we would like to invite you to take part inWHC's 25th Annual Symposium on November 13-14, where you will be presented with yourcertificate and recognized at an Awards Banquet. Please note that the outcome should not beshared outside of your company until November l4th.In addition to the award ceremony, Braidwood Generating Station's efforts will be recognizedthrough press releases and inclusion in WHC's Registry of Certified Programs. The program willalso be recognized on the Conservation Registry and LandScope, on-line resources throughwhich various stakeholders can collaborate on conservation efforts. Drafts of the programdescription that will be used in the press release and included on these websites will be sent toyour media contact for review and approval.Congratulations again and thank you for your participation in WHC's Wildlife at Work program.Sincerely,Margaret O'GormanPresidentWildlife Habitat Council/socc: Melanie Dickersbach, Jim Bolte, Christina Xydis Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: TE-3 Category: Terrestrial EcologyStatement of Question:Provide the following information:(a) The May 31, 2013, Wildlife at Work recertification application and enclosed WildlifeManagement Plan that was discussed with the NRC staff for review during the site auditin response to TE-3 (Environmental Report, Section 2.4, Page 2- 30, paragraph 4).(b) The October 18, 2013, letter from Margaret O'Gorman, Wildlife Habitat Council, toBrittney O'Conner, Exelon, that was discussed with the NRC staff for review during thesite audit in response to TE-3 (Environmental Report, Section 2.4, Page 2 -30,paragraph 4).(c) During the site audit, Exelon staff indicated that Exelon intends to continue to maintain itsWildlife at Work Certification throughout the proposed license renewal term. Pleaseconfirm that this statement is true.Response:(a) The requested document is attached to this response.(b) The requested document is attached to this response.(c) Since 2004, Exelon Corporation has pursued an environmental strategy that buildson four fundamental elements: Regulatory compliance, risk management, resourcestewardship and leadership on key environmental issues. Since 2005, ExelonCorporation has been a member of the Wildlife Habitat Council (WHC), which is anonprofit group of corporations, conservation organizations and individuals dedicatedto restoring and enhancing wildlife habitat. The WHC's Corporate Wildlife HabitatCertification/International Accreditation Program recognizes commendable wildlifehabitat management and environmental education programs at individual sites, andWHC certification adds value to programs by providing third-party credibility and anobjective evaluation of projects. Exelon's partnership with the WHC emphasizes thecorporation's commitment to environmental stewardship and leadership.Exelon Generation encourages and supports its generating stations in their individualvoluntary efforts to attain WHC Wildlife at Work Certifications, which signify anintention to exceed regulatory requirements. Braidwood Station has achieved theWHC Wildlife at Work Certification and intends to seek funding for continuedimplementation of wildlife protection programs into the future. Exelon Generationexpects to support this goal, but cannot confirm that funding will be available for thisactivity throughout the proposed license renewal term.1 of 2 List Attachments Provided:1. The May 31, 2013, Wildlife at Work recertification application and enclosed WildlifeManagement Plan that was discussed with the NRC staff for review during the site auditin response to TE-3 (Environmental Report, Section 2.4, Page 2- 30, paragraph 4).2. The October 18, 2013, letter from Margaret O'Gorman, Wildlife Habitat Council, toBrittney O'Conner, Exelon, that was discussed with the NRC staff for review during thesite audit in response to TE-3 (Environmental Report, Section 2.4, Page 2 -30,paragraph 4).2 of 2 Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: LU-1 Category: Land UseStatement of Question:The June 20, 2013, final rule that amended 10 CFR Part 51 revised the scope of the transmissionline review for license renewal to be those "transmission lines that connect the nuclear power plantto the substation where electricity is fed into the regional power distribution system and transmissionlines that supply power to the nuclear plant from the grid" (see 10 CFR Part 51, Appendix B toSubpart A, Table B-i, Footnote 4). Please provide the following information:(a) Identify the name and location of the substation that connects Braidwood to the regionalgrid.(b) Clarify which portions of the transmission lines described in Section 3.1.6 of the ER arein scope for the license renewal review according to the revised definition.(c) Confirm that the following statement regarding transmission lines that supply power toBraidwood remains true under the revised transmission line scope (ER Section 3.1.6,Page 3-14, Paragraph 2): "No separate transmission lines exist for the purpose ofsupplying power to Braidwood from the grid (off-site power)."Response:a. Braidwood is connected to the regional grid at the on-site 345-kV Braidwood Stationswitchyard.b. Electricity generated at Braidwood Station is transformed from generator voltage to anominal 345-kV transmission system voltage by the main power transformers. The mainpower transformers are connected via intermediate, on-site transmission lines to the on-site 345-kV Braidwood Station switchyard. The location of the intermediate transmissionlines on the site property is shown in Braidwood UFSAR, Figure 8.2-7. For ease ofreference, a copy of the figure is attached to this response. Based on this informationand that there are no other transmission lines that would be dismantled or otherwisedecommissioned as a result of terminating operations at Braidwood, Exelon concludesthat, under the revised regulations, the intermediate, on-site transmission lines are theonly in-scope transmission lines for the Braidwood license renewal environmentalreview. These transmission lines are located entirely within previously disturbed areason the Braidwood site.Under the prior regulations and guidance, the in-scope transmission lines for Braidwoodlicense renewal included one transmission line that was constructed with the station toconnect it to the regional electricity grid. That line, which is owned and operated byCoinEd, is identified in the Braidwood License Renewal ER as the "Braidwood-to-Crete(retired) Transmission Line" (345-kV line on double-circuit towers). Under the 2013definition of in-scope transmission lines, this transmission line is no longer in-scope forthe Braidwood license renewal environmental review. This conclusion is discussed infurther detail in Exelon Generation's response to Request for Additional Information CR-7.1 of 2
- c. The statement in the Braidwood License Renewal ER regarding transmission lines thatsupply power to Braidwood Station remains true under the 2013 definition of in-scopetransmission lines. A description of the offsite electric power system that supplies powerfor safety functions is provided in the Byron/Braidwood UFSAR (Exelon Nuclear 201 Oa),section 3.1.2.2.8 (pp. 3.1-8 and 3.1-9) and Chapter 8.List Attachments Provided:1. Braidwood Station UFSAR Figure 8.2-7, Property Plan.2 of 2 REVISION 8DECEMBER 2000UNIT IEASTMAIN COOLING PONDTOLA SALLESPILLWAY-800 Xm m 40SCALEURAIDWOOD STATIONUPDATED FINAL SAFETY ANALYSIS REPORTFIGURE 82-7PROPERTY PLAN Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: LU-2 Category: Land UseStatement of Question:Does Exelon intend to 'perform any construction or land-disturbing activities during the proposedlicense renewal period that would be unrelated to refurbishment activities?Response:At present, no construction or land-disturbing activities are planned that would be unrelated tothe activities described in the Braidwood License Renewal ER as hypothetical refurbishmentactivities.List Attachments Provided:None Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ-2 Category: Aquatic EcologyStatement of Question:Provide the following reference:HDR Engineering, Inc. (HDR). 2008. Investigations to Determine Presence of State-ListedSpecies of Fish and Freshwater Mussels in the Kankakee River near the Braidwood NuclearStation Warm-water Discharge Channel. October 2008.Response:The requested document is attached.List Attachments Provided:* HDR Engineering, Inc. (HDR). 2008. Investigations to Determine Presence ofState-Listed Species of Fish and Freshwater Mussels in the Kankakee River nearthe Braidwood Nuclear Station Warm-water Discharge Channel. October 2008.
Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ-3 Category: Aquatic EcologyStatement of Question:Provide the following references:(a) Exelon's Incidental Take Permit regarding construction of the new dischargestructure.(b) Exelon Nuclear (Exelon). 2010. Final Report: Unionid Relocation near theBraidwood Nuclear Station Kankakee River Discharge Location. September 2010.Response:The requested documents are attached.List Attachments Provided:1. Authorization for Incidental Take and Implementing Agreement regardingconstruction at Braidwood Station of a new outfall and multiport diffuserimpacting the Kankakee River in Will County, Illinois. December 17, 2009.2. Exelon Nuclear (Exelon). 2010. Final Report: Unionid Relocation near theBraidwood Nuclear Station Kankakee River Discharge Location. September2010. Mostardi PlattJanuary 18, 20101520 Kensington Road, Suite 204Oak Brook, Illinois 60523-2139Phone 630-993-2100Fax 630-993-9017www.mbstardiplattenv.comJoseph A. KathEndangered Species ManagerIDNR -Office of Resource ConservationOne Natural Resources WaySpringfield, IL 62702-1271Re: Threatened and Endangered Species Issues -Incidental Take Authorization (ITA)Exelon Nuclear Braidwood Station River Diffuser Project
Dear Mr. Kath:
Attached is the signed "Authorization and Implementing Agreement",for the Exelon NuclearBraidwood Station River Diffuser Project. The ITA Agreement was signed by Mr. Lawrence M.Coyle, Plant Manager. For reference, the U.S. Army Corps of Engineers permit number is LRC-2008-340 and the IDNR permit application number for the cofferdam construction is IDNR2009107.Thank you for your continued assistance with this project. Please contact me at 630-993-2127 ifthere are any questions.Respectfully submitted:!ý405 I PL T ENVIRONMENTALJoseph J. Macak IIIPrincipal. ConsultantEnclosurescc: Mr. Lawrence Coyle, Exelon NuclearMr. Raymond Hall, Exelon NuclearMr. Dominic Imburgia, Exelon NuclearMr. John Petro, Exelon NuclearMr. Bryan Risley, Exelon NuclearMs. Kate Bliss, Project Manager, Chicago District USACE'LRC-2008-340Ms. Jeannette Schiller, IDNR Bartlett Office, IDNR 2009107 Ill"n°osDepartment ofNatural Resources: http:?1dnr.stdteJ1LiusOne Natural Resources Way Springfield, Illinois 62702-1271December. 17, 2009Mr. Thomas I. Hebe.rt'Mostardi. Platt Environmental.1520Kensington Road -Suite 204Oak Brook, Illinois 60523-2139RE: Exelon.' Braidwood Nuclear Generating Station -.Plant outfall and Muitiport diffuserKankakee River, Will County, IllinoisThreatened and Endangered Species Issues -Incidental Take Authorization,:
Dear Mr. Hiebert:
Pursuant to the Illinois Endangered Species Protection Act (520 ILCS 10/51.5) the Exel0n/Braidwood%Generating Station outfall and. multiport diffuser.(new outfall and multiport diffuser) for the incidentaltake, of the:State threatened black sandshell mussel (Ligumia recta),:purp!e wartyback mussei(Cyclonadi tuberculaya), shieepnose mussel (Plethobasus cyphys), spike, mussel (Elliptio dilatata),.pallid shiner fish (Hybopsis amnis), river.redhorse fish (Moxo stoma.darinatum), and the weste.n sand'.darter (Ammorcrypta clar.io) impacting the Kankakee River in Will County, Illinois is hereby granted,subject. to the terms and.conditions described in the attached Authorization and ImplementingAgreement. The Illinois Department of Natural Resourcesthas :determined that this authorized take isincidental to the construction ofra new .outfall andmultiport diffuser impacting the. Kankakee River inWill County, minois.Please have an authorized Exelon/Braidwood Official(s) sign the lastpage of both copies of the*Authorization .and ImplementingAgreement and return onecomplete copy.to my the attention. Uponreceipt by. the Department, this authorization. shall be effective.Thank you for your cooperation and .assistance during the incidental take preparation. andreview process.Please do. not hesitate.to contact. our office at (217)782-6384 withany questionsl or comments you mayhavexregarding this authorization agreement.Sincerely,.Jopseph X Kath"'Endangered Species ManagerIDNR-Office of Resource Conservation:..Enclosures'Printed on recycled. and recyclable.Otock Authorization for Incidental Take and implementing Agreement:Pursuantto the illinois Endangered .Species Protection Act (520 LCS. 10/5.5) the Exelon/BraidwoodGenerating Station:outfall and multiport diffuser (new outfall and multipart diffuser) for the inciden.tal1take of the State threatened black sandshell mussel (Ligumia recta), purple wartyback mussel(Cyclonaias tuberculaa), sheepnose mussel (Plethobasus cyphys)., spike, mussel: (Ellip ., dilatata),pallid shiner fish (Hybopsis amnis), river redhorse fish(Moxostoma carinatum), and the western sanddarter (Ammorcrypta clarum) impacting the: Kankakee River in Will County, Illinoisi 0(described/shown in the conservation plan received by the.Department on 11 May,. 2009) is herebygranted, subject to the terms and conditions described in the attached Authorization and ImplementingAgreement. The Illinois Department of Natural Resources has determined that this authorized take.isincidental to the.construction of a new oUtfall and multiport diffuser impacting the Kakee River i"Will County, :finois.Procedural HistoryMostardi PlattEnvironmental.(MPE), %acting as environmentail consultant.foi the Exelon.Nuclear-Braidwood Generating Station prepared a conservation plan as described by the Illinois EndangeredSpecies Protection Act (520 "LCS 1015.5). That.plan and MPE's request for authorizationsfor incidentaltake of the State threatened'black sandshell mussel.(Ligumia recta); purple wartyback-mussel,(Cyclonaias tuberculaya), sheepnose mussel (Plethobasus: cyphys), spike mussel.. (Elliptio, dilatata),pallid.shiner fish (Hybopsis amnis), river redhorse fish (Moxo stoma carnatum), andthe western sanddarter. (Amzorcrypta clarum) were receiyed by the Illinois Department of Natural.Resources."(Department) on 11 May, 2009. 'Public, notice of MPE's request for authorization.of incidental. take .ofthese listed specipes was published in the Northwest Daily Herald .(Official State:newspaper) and:theBraidwood/Free Press (Braidwood, Wilimington, and Coal City, IlInois) on August 21, 26, and 28, 2009as well as September 2, 4, and 9, 2009. Public comments on MPE's conservation plan were accepted bythe Department until October 9, 2009. No comments were received by the public during, the period ofAugust 21 through October 9, 2009.Exelon Cbrporation, Brnidwood Generating Station: (Braidwood) will behinstalling a multiport diffuser inthe Kankakee River that would more than likely result. in. significant. env-ironmental benefits.over the..existing river ouffall that would* continue operation only as back-up to the diffuser. This project will have.anin-stream construction zone of approximately 132feet by. 24.feet.The Braidwood' Generating Stati0n isa nominal 2,362 MW. base Joad generating facility located in WillCounty,.illinois, apprOximately 20 miles south- of Joliet, Illinois..The facility, which serves northeasternIllinois, consists of two Westinghouse pressurized water reactors.. Unit 1 began operation on July.2, 1987,and Unit 2 began operation on May 5,4 988. Commercial. operation began in.May and October 1988,.respectively., Thelicense expiration date isOctober 17, 2026 for.Unit.1, andDeember 8,2027 Ifo Unift2.Printed on recycled and recyclable'sllck Braidwood is owned:by Exelon Corporation, and operated by one of its business units-Exelon Nuclear..Braidwood is built on. a 4,457-acre site, and its 2,537-acte cooling pond was formed. from scarred farmingland and an/old ýstrip mine.Braidwood has been coordinaig this project with MOSTARDI PLATT ENVIRONMENTAL (MPE) as,thelead consultant dealing with: U.S. Army Corps of Engineers (UFSACE) permitting, IllinoisDepartment of Natural Resources (IDNR) incidental take permitting,llinois Environmental ProtectionAgency (IEPA) NationalPollutant Discharge Elimination System (NPDES) permit modifications and 401Water Quality Certification, and the IllinoisHI-istoric Preseryation Agency (-HPA) for .impact on cul.tural*and historical resources.The location of the existing cooling l'ake.outfall is shown below. Two (2) recent biological surveys ofthe proposed in-river construction site have been conducted-.: HDR Engineering, Inc. (HDR) performed, a.survey for fish and mussels in August 2008.:Ecological Specialists, Inc. (ESI) conducted a more:comprehensive follow-up mussel survey in October. 2008. The surveys identified two (2) State listedT&E fish species and three (3) State listed T&E mussel speciesand one (1) species of special concemr tthe project area.Printed oni retycled and ticyclable stock A preliminary review .of fish and freshwater mussel studies conducted in this general reach of the riverindicated thait fish monitorinig, including the proposed area for diffuser.pipe placement, has beenconducted annually for the past 30,years,(with the exception of 1980)(HDRILMS; 2008); but that, whileseveral freshwater mussel surveys had been conducted in thexriver between Kankakee and.Wilmington.inrthe past, none had been conducted at the proposed site.Compliance with the Endangered, Species Protection ActThe Illinois Endangered Species Protection Act includes six (6).criter.iaw.hichmust.be met for theauthorization of incidental take of an endangered or threatened species. These: criteria and theDepartment's determination for each: criteria are listed below.,L. The taking will not be the purpose of, .but will only be incidentalto,the Carrying out of an otherwise.lawful The stated and apparent purpose. of this proposed action is to construct a new outfall andmultiport diffuser for "Braidwood"'mpacting a poron of the Kankakee River in Will County,Illinois. This portion of the Kankakee River potentially contains habitat for.freshwater mussels,and fish, including State listed species. In. the course of these construction activities, HDR andor.*ESI (acting as. subcontracting enviromental consultants), shall relocate all: observed/capturedmussels and fish (listed or non-listed species) disturbed by construction, hence:a technical"taking".' of these species. Such. taking is not the purpose: of the activities proposed by.Braidwoodbut is incidental to the carrying out of a .ve.. ...eexstnOverall, Braidwood is proposing to replace the existg Braidwood Nuclear Station% CoolingPond .discharge (shoreline discharge channel) with. a diffuser pipe,-placed.on the bostom oftheKankakee River.extending across the river near the locationr of the current'discharge channel..A preliminary review of fish and freshwater mussel studies conducted in: this general,'reach of.theriverindicated that fish monitoring, including theoproposed area for diffuser pipe placement, hasbeen conducted annually for the past.30 years (With the exception of 1980)(HDRILMS6 2008);but that, while severalfresihwater musselsurveys had been conducted in the river betweenKankakee and Wilmington .in the past, none had been conductedat the proposed site.In retrospect, the.Kankakee River supports some of Illinois'.most diverse and abundant musselpopulations with 27 extant:and 40.historical species. It was surveyed: several times for mussels. in.the :20th. century. Some regard. the mussel populations of the: K.,eeRiver to be of national,importance. Several freshwater mussel species currently listed as either endangeredorlthreatenedýby the State"of Illinois! were collected during. these earlier surveys. No freshwater .mUssel speci.escurrently listed as threatened. or: endangered:by the Federal government have been reported in this-reach of the Kankakee River.pinted on reyclei ~d~I ý recycbl. stock To limit impact onmthe unionid community, the multiport diffuser will be placed in. an area of theriver known to be nearly devoid of mussels and from which no specimens representing State-listed species:were taken.:Because the diffuser will only traverse a nominal 60% of the KankakeeRiver, there will. likely be minimal impact on the unionid population known to inhabit. the near-shoreline opposite and downstream of the existing outfall and new diffuser installation site.Early diffuser designs studied by Braidwood included diffusers crossing the entire: width of theriver. The, final design mmmized the width by locating the multiport diffuser in a 20 metersection of the deepest, middle portion of the river. By: minimizing the. width, the diffuser can beconstructed with one:(1) singlescofferdam installationwand avoid thedarea on the oppositeshoreline where mussel species had a higher density.2. The parties to the conservation plan will, to the.maximum extent practicable, minmize and mitigate,the impactpcause'dby the taking.Theý Braidwood conservation plan .stated that freshwater mussel6 and fish sur.vey.s, and subsequentrelocations, shall be conducted prior to initiation of in-stream construction and. most likely duringthe: spring/summer while water temperatures. are at or above 50. degrees Fahrenheit.-Allnmussells"and fish observed/captured (listed ornon-listed. species) are to. be relocated in order to minimize,impacts. Mussel surveys shal be conducted using standard survey techniques includingsearching by: feel to methodically cover the area to be disturbed.by the project (viewing boxes,.wadingin shallow water, SCUBA indeeper water-if applicable). All mussels found will be:identified to species. Mussels. shall be relocated into areas of suitable habitat, in the samestream/river, preferably upstream of the construction site. Specifically, the transplant site will beclose to the collection: area and. have similar to0better water quality and.substrate. Thevproposedcontractor isEcological Specialists, Inc..(ES]) that has worked. on several similar projects andhave extensive experience with Midwestern mussels. Braidwood shall provide the Department(Atthi: Joseph Kath) with a report detailing the.results of all.mussel, surveys and relocation.effortswithin 45 days of all surveys/relocations.In addition, all fish retained within the cofferdam during dewatering shall beq netted andimmediately returned to: the river as addressed in the 2009 Conservation, Plan. Overal, mussel'and fish surveys-and related relocations shall occur only after Departmentauthorization. and priorto any construction activities.The river diffuser project will require the constructiona ofa temporary cofferdam:approximately:1i32feet by 245 feet. The cofferdam will consist of sheet:pile withrockbackfill After thecofferdam is. constructed, the area will be dewatered to allow for construction ofthe. riverdiffuserbeneath the river bottom. Upon completion. of the construction program, the sheet pileand temporary rock backfill will be removed from the river and the area will return to its naturalstate. In: the. absence ofany. conservation plan, there would be the potential for mussel and fishspecies to be adversely impacted or. killed since the area would, be temporarily drained and fdiled(gravel.).'Printed on.recycled and recyclable stock. FisheriesTwo (2) state protected species of fish, the pallid shiner and river redhorse, were taken during the:survey conducted August 2008. None of the state-listed specimens were taken in the inimediateproximity of the proposed project and are not expected to pose a regulatory effect on the:permitting process. Fish are motile and often occupy: different afeas under varying flow and.environmental conditions. Project related effects to-state-listed fishspecies are ýepected to beminimal if any. Fish would most. likely not be attracted to the construction activity anddaytimenoise associated with shleet pile driving.The mitigation of incidental take of fish dug construction should more than likely be fairlysimple. The IDNR fisheries specialists shall be notified: (per their request) of the dewatering ofthe. cofferdam area following its construction. The water contained within the cofferdam will bepumped back to the river. As the water leveIlrecedes, all fish retained within the cofferdam will,be netted and safely/humanely returned to the iiyer. No construction.shall take place during thespawning season of the'last three weeks of May, and first week of June. This activity will be:photographed and documented in aformal diffuser construction report and shall be madeavailable to theDepartment upon request.MusselsTwo (2) ilinois protected species C. titbe rculata, E. dilitata) andq one (1) Illinois Special.Concern species (V. ellipsifonnis) and the Federal Candidate species P.,cyphyus wereepresent.Habitat within the survey area is, hottypically ideal for unionids within the Kankakee River. Runhabitats within the Kankakee River, like the habitat within the survey area, are not known tofoster abundant and species-rich unionid communities. Other:Kankakee River surveys haveshown thatuinionid communities in pools or runs generally ranked low in abundance anddiversity compared to areas withýriffles or dam tall waters. Although the survey area appears to.contain a relatively moderateýto high species richness, unionid density was relativelylow andunionids were scattered throughouit the survey 'site.In-stream construction activity may: disrupt the substrate and,.consequently, the animals living inthe substrate. Unionids withinlte areawdirectly affected by% construction could be crushed byequipment or permanently buried under excavation 4oiL Disruption of the substrate could:resultindisplacement ofumionids to unsuitable habitat, which could lead to reduced fitess or death.Construction activities could also lead to altered flow patterns that may increase sedimenitation,.which is a putative source of unionid declines throughout North America. Construction impactsto unionids have successfully been mitigated by miinizing the area used for constructing andrelocating unionids from areas of unavo.idable impacte.t.Exelon Nuclear/Braidwood shallýperform a pre-construction mussel survey, coordinated:by a:qualified diver(s), to locate and move/relocate any and all mussels within the impactareain thedeeper portions of the river, or through wading in the shallower portions of the river. This surveyshall :be performed within 30 daysof the start of construction..Printed. on recycled and recyclable siack Mussels in the construction area will be relocated to areas of suitablehabitat. The relocation sitewill be located in the Kankakee River, relatively close to the project site upstream of theconstruction activities. It will coniain similar or better water quality and substrate, An area has.:been identified approximately 1,000 feet upstream of the proposed construction. area known tocon taina relatively dense, mussel population. This area will be considered for the relocation site,The IDNR. shall be notified 14 days prior to the start of this survey activity.:Themussel survey and. relocation, activity shall. also. be documented in a formal. diffuserconstruction report.: The report will discuss. the methods of the. mussel relocations, and 'include.a.quantification of the relative number and species of mussels relocated. The report. will also .identify any state-listed speciesmthat arel relocated, if any. This report shall be made available tothe Department upon request.To minimize the..extent and duration of project-related disturbance to the. Kankakee River andaY potential for.indirect impacts on.mussels or mussel. habitat, Braidvood shall implementsediment control and construction management measures during construction. These measureswill include use. ofthe cofferdami, plus silt fencing or other sediment control measures to limitdownstream sedimentation during construction. The in-stream construction will take.approxhmtely 150 days and any potential short-term effects will be limited to this time period.3. The parties to the conservation plan will ensure that adequate funding for the conservation plan will beprovided:Braidwood Station confirms that adequate funding exists to support and implement all(mitigation) activities described in the official 2009. Conservation Plan. Braidwood Iascommitted to budget and authorize, during their Fiscal Year 2009-2010 budget appropriationordinance, adequate funding to provided for project construction: activities and implementation ofall, mitigation activities required and described in the. official conservation plan.:4. Based on the. best available scientific- data, the Department.has determined, that the: taking. will not.reduce the likelihood of the survival or recovery: of the endangered species or threatened species in thewild in illinois, the biotic community of which: the species is a part, or the habitat essential to the species'existence i Construction and operation of Braidwood's multiport diffuser project-in Will County', inoiswill more than likely not reduce the likelihood of the survival of state-isted threatened or'endangered mussels in illinois.:For the purposes of comparison, HDR Engineering, Inc. (HDR) completed aninvestigation of fish and ,freshwater mussel studies in the river and, proposed diffuser. area inAugust 2008. Inaddition, Ecological Specialists, Inc. (ESI) completed a characterization ofunionid'communities near Braidwood's diffuser project to investigate freshwater mussels in the.proposed diffusert area inOctober.2008.Plint6d on rixycl and recyclable stock. For the. purposes of bioibgical comparison, it should be noted that the freshwater mussel and fish-fauna of the. Kankakee.River,.HDR identified 212 live mussels from 15 species in August 2008and ESI identified 126.live mussels and 13 species in. October 2008. Three.(3) purple wartybackmussels were collected upstream of the discharge channel with one. (1) fresh dead sheepnoseshell and relic.spike and sandshhdl.muSsels by HDR.HDR.identified 1,308 fish 45 taxa (43, species) dominated by longer sunfish(26.5%),. spotfi.n. shiner (13.1%), bluntnose minnow (11.7%), rock bass (5.3%), smallmouth bass:(4.8%) and largemouth bass (4.8%) from electroshocking. HDR alsocompleted seining whichincluded 686 fish comprised of 22 taxa (20 species) dominated by spotf'm:shiner (36.2%),.bluntnose minnow .(15.3%). striped shiner (11.7%), sand shiner (9.0%), andJo..hny darter(8.3%). According to HDR, none of the three (3) state listed fish species were taken-within theimmediate proximity of the proposed diffuser.The black sandshefllmussel (Ligumia recta) is.listed as threatened4n. Illinois because of its: andcit-was formerly widespread in the statewhere it was found.din medium to large river systems,Although it is possible thatlive: individuals of the black sandshell are present in the project area,itis unlikely due. to. the fact:that only one (1) was found alive in August 2008 and one (1) wasfound. dead in October 2008.The purple wartybacklmussel (Cycdonaias tuberculata) is.listed as threatened in Illinois and wasonce.widespread. in Illinois: includitg the Kankakee. River. It is possible that live individuals ofthe. purple..wartyback are present in the project area, since, three. (3) were found aliVe in August2008 and one, (1) alive in October 2008..%The :sheepnose mussel (Plethobasw. cyphyus) -is listed as endangered in illinois because its rangeand abundance: have declined in recent decades.. It was formerly widespread in.the state where itwas fond in medium tolarge river systems. Currently, it isfound popull.ations.'in rivers imcluding~the KankakeeRiver. Although it is possible. that live .individuals of the.sheepnose at' resent in the project area, it.is unlikely due to the fact one (1) was found dead inAugust:2008 andinone (0) were found dead in October 2008.mussel (Elliptio dilatata):is listed as threatened in Illinoisbecause.it was formerlywide spread inMllinois, including. theKankakee River. Although it is possible that liveindiYiduals of the spike are presentfinthe~project area,.it is unlikely-due to the fact that asrelic.shell was: in August 2008 and two (2).were.collectedalive in October:2008.The phllid shiner fish(Hybopsis amnis) is listed as threatened in Illinois and. found inWmedium.tolarge rivers and streams. Commonly, this fish is found in the sand and mud in shallow, slow-moving, moderately clear, warm, and well-oxygenated: waters. Two (2):were identified by HDR,in 2008 downstream from the discharge channel, near a sand bar dropoff.onrecycled and recyilable Stock: The river redhorse fish (Moxostoma carinatum) is listed as threatened in Illinois and is found inswift waters of large rivers,. lower portions of main tributaries, reservoirs, and pools over. cleangravel and rubble. One (1) was identified by HDR in 2008 collected upstream from the discharge.channel.The western sand darter fish (Ammocrypta clatum) is listed as threatened in Ilinois and is foundin: medium to large.streams with sandy. areas and moderate current. HDR identified no (0)western.sand.darter fish in August 2008.Any lie animals:.that are overlooked during therelocation effort could be at risk of injury or".death as a resultof construction activities. The relocation of all mussels and fish encounteredwill iake it unlikely that a significant number. of individuals will be:exposed to threats. related tothe Exelon Nuclear.plant outfall and multiport diffuser project.in Braidwood, Illinois. Relocationcan be used to recoloifize areas where previous populations were extirpated, to remove musselsfromproposed construction sites, .to .boost numbers of endangered species..The -survival, ofrelocated mussels is closely linked to habitat quality.As stated in the official conservation plan, Braidwood shall implement sediment..control andconstruction. management measures to minimize the extent and duration of project related.disturbance to the: Kankakee River and any potential for direct/indirect impacts on musselsand/or mussel habitat These measures will include the use of cofferdams, silt fencing, or othersediment control'm'easures:to limit downstream sedimentation during: construction. The in-streamconstruction will take approximately 150 days and any potential short-term affects will mostlikely. be linited to this time period. All mussels shall be relocated from the outfall. mixing, zone,limiting long-term operational effects.For further purposes of Statewide biological comparison, it should be noted that the freshwatermussel~fauna of theFox River and its tributaries inillinois and Wisconsin were surveyed byDepartment staff during the summers: of 997-2001. A total of 3,585 live individuals comprisedof 23 .species were collected from 96 sampling stations.. Of this total, 60 spike mussels (Elliptio:dilatata) and four (4) black :sandshell mussels. (Liguwnia recta) were qoilected.Thezblack sandshell mussel (Ligumia recta)is. listed as threatened in Illinois because its. range,and abundance have declined in. recent decades. This species: was once fairly widespread in thestate where it was. found.in most. of themaj or river systemsibut is now.known from less than25%, of the counties with. historic records. Althoughitis possible thatflive individuals of theblack sandsheli are present in. the project area, it is unlikely dueto the fact that.only one (1) dead,.weathered shell of spike and black sandshell mussels were found inthe project area. Any liveanimals that are overlioked during the relocation effort could be at risklof injury or death as a'result of construction activities. The relocation of all mussels enoun.tered will make it unlikeythat a significantnumber of individuals will be exposed.to threats related to the Braidwood plantoutfall and multiport diffuser project in Will County, Illinois.Printed on recycled.and recyclable stock,: As stated, in .the April 1996 fclinical Report (working draft) titled -"Measures tominimizeharm: to.. Lampsilis: higginsi [federally endangered Higgins Eye mussel] caused by passage of.commercial navigationv. essels in the upperMssissippi River':" [prepared by the US. Army Cors.of Engineers-Waterways.Experiment Station].: Relocation. is one of several methods that can beused to protect freshwater mussels. Relocation can be used to recolo&ize areas where previouspopulations:were.extirpated; to: remove mussels from proposed construction sites, to boost:numbers of 'endangered. species, or to protect agist high densities of the zebra mussel(Dreissena polymorpha). The survival of relocated mussels is closely linkedto habitat quality;.Relocation sites should havethe:same conditions of substratum type and stability, and watervelocity. as.the originalbhabitat.. Research fromthe federally endangered Higgins Eye mussel(Lampsilis higginsi) .recovery team, under the guidance:of the United States Fishand WildlifeService, has deterbined thatnminimal mortality (<12%)'and high recovery rate-(>88%) wereshown when aerial exposure: of mussels was less than four (4). hours and when relocations wereconducted .inrspring or autumn when air (1.2-18 C) and water temperature (15-23 C) were.moderate.5. Any measures required under Section 5.5 of the Illinois Endangered SpeciesProtection Act [520 ULCS1.0/5.5 -17 IL,.Adm, Code Part 1080.40(b)], Will be performed:Additional measures are listed below under ".Authorization." This authorization is, by definition,subject to those: terms.and conditions and official Exelon CobrOration/Braidwood. Generating..Station signature(s):onSthis authorization indicates-their commitnenttoftp.erforming thosemeasures.6. The public hasreceived notice of the application and has had the opportunity~to comment before the;Department made any decisionregarding the application:Mostardi Platt Environmental (MpE), acting as environmental consultant for the Exelon Nuclear-Braidwood Generating Station prepared aa conservation plan as described by the IllinoisEndangered Species Protection Act (520 ILCS 10/5.5). Thatplan and MPE' s request forauthorization for incidental take of the State threatenedblack sandshell mussel (Ligumia recta),purple wrback mussel (Cyclonaias tubercuiaya), sheepnose mussel(Plethobasus cyphys),spike. musse.l dilatita), pallid shiner fish (Hybopsis amnis), river'redhorse fish.(Moxostoma carinatum), and the western sand darter (Amnnorcrypta"clarum)ý were received by:the Illinois Department of Natural Resources (Department):on 11 May,2009. Public notice ofMPE's, request for authorization of incidental: take of: these listed species ..was published in the.- -Northwest Daily Herald (Official- State newspaper) and the Braidwood/Free Press (Braidwood,Wilimington, and Coal City, Illinois) on August 21, 26,. and 28, 2009 .as well as September 2, 4,and:9,.2009:.. .Printed on.recycled and mcyclable stock Publiccoimments on MPE' s conservation plan were acceptedby the Department until'October 9,2009. No commentswere received by:.the public duing the period of August 211 through October9, 2009..Authorization.Itis the: determination of the Departmnentthat.the measures to beeimplemented by Mostardi PlattEnvironmental. (MPE), acting as environmental consultant for the Exelon Nuclear-B raidwood Generating:Station , would adequately minimize and. mitigate for the anticipated taking (relocation) of a smallnumber of the State threatened black sandshell mussel (Ligumia recta), purple wartybackmussel-"- * (Cyclonaias tuberculaya)," sheepnose mussel (Plethobaius cyphys), spikemussel (Elliptio dilatata),pallid shiner fish (Hybopsis amnis), river redhorse fish (Moxostoma carinatum), and/or the western sanddarter (Ammorcrypta clarum) impacting the Kankakee River in WillUCounty. Further, it is our opinionthat the take. (relocation) authorized herein would not diminish the likelihood'of the survival of theabovelisted species in, the wild within the State of Illinois, the biotic community of which the species isa apart.or the habitat essential to the species' existence in Illinois.Pursuant. to Section 5.5 of thelfinois Endangered Species Protection Act [520 ILCS W0/5.5 -17'IL. Adm. Code Part 1080.40(b)], this authorization is issued subject to the following additional,terms and conditions:.1. This authorization is effective upon..signature by theDepartment and shall remain ineffect fozra period of five.(51'.years after completion of the construction of a multiport diffuserimpactingthe Kankakee River in Will County, Illinois, unless terminated as pursuant to Section.5.5 oftheIllinois Endangered.Species Potection Act [520 ILCS 1015.5 -17 IL..Adm. Code Part 1080.80],2. Freshwatermussel surveys shall be conducted prior to construction activities (relatedto a new multiport diffuser impacting ther Kankakee River) in the area(s) of direct impact, as wellas the immediate downstream reaches (100 feet downstream). All mussels observed (listed ornon-listed species) are to be relocated in order to zinimiZeimpacts. Mussel surveys will beconducted using standard survey techniques including searching by feel to methodically coverthe area to be disturbed by the project (vieWing boxes, wading in shallow water, SCUBA indeeper water-if applicable). All mussels found will be identified tospecies" Mussels shall berelocated into areas of suitable habitat, in the same stream, preferably upstream of theconstruction sitem. Specifically, the transplant: sitewill be close to the: collectionarea and havesimilar to betterwater quality and substrate. MPE7(or another qualified ecological consultant),shall provide the Department with areportdetailing the results of all musselsurveys andrelocation efforts within 45 days of completing all surveyslrelocations.,:IPinted on recycled and recyclable stock.:
- 3. Regardless. of whether any live black sandshell (Ligumia recta), purple wartyback(Cyclonaias tuberculata), sheepuose (Plethobasus cyphryus),and/or spike (Elliptio dilatata) livemussels ad/or any other live Federal or State endangered or threatened mussels are removed:and/or relocated within: the Will County, Illinois construction.zone (approximately *132 feet by245**feet). at Brai.dwood, either~solely and/or through a qualified environmental consultant(s),'Exelon Nuclear-Braidwood shall perform (or cause to be perfoiried),a survey of the entifeconstruction~zone +4.. 300 feet'in the (fifth) 5 11 yearfollowing initial operation of the. riverdiffuser. The.purpose..of the,,survey is to determine if these listed speciesý havecolonized/redolonized areas directly.impacted by the river diffuser construction and operation..Again this survey shall be.conducted'atfive :(5) years after the.start of the riverdiffuser.. Braidwood,. eitherpsolely or through its environmental consultant, shall provide a copyof these survey reports to the Department within, 45 days.of.survey completion. In addition,.Braidwood shall continue to perf0rm their annual fisheries surveys in order: to document thatilte..river diffuser project: had no adverse impact on the aquatic environment- TheSe annual fisheriesreports shall be made:.avaiabie to the DepartmentuponPrequest.4. All mussels encountered withinthe,.State of ]ilinois during this.project shall be subject to thegeneral U.S. Fish and Wildlife Service handling protocol -for dete ng presence/absence ofspecies as found in "Section HI' of the, attached Federal Fish and Wildlife document.5. The mitigation ofincidental f fish during BraidWood construction shall involve thefollowing; The local. IDNR fisheries specialist(s) shall be notified prior todewatering.of thecofferdam area following its construction. The water contained withinthe cofferdam.will bepumped back to the river.. As the water-level recedes, %all fish retainedmwithin, the cofferdam will.be netted. and:safely/humanely returned to the river..No.construction shall takeý place during he::spawping. season. of the last three weeks of May, and. first week of June. This. dewatering activitywill be photographed and -documented in.a formal diffuser construction report rand shall.be madeavailable to the Department upon request.6. The effective period of this authorization may be altered*by mutual. agreement between ExelonNuclear-Braidwood Generating Station and the Depa nt only.7. Thisauthorization may be,revoked pursiuantto0Section 5.5-ofthe Illinois Endangered SpeciesProtection Act [520 ILCS,10/155 -17 !L. Adm. Code Part 1080.80] if theDepartment finds thattheExelon Nuclear-Braidwood Generating:Station has failed to comply with any of these termsand conditions.ahd/or his been. responsible for the unauthorized taking (relocation) of the Statethreatened black sandshell mussel (Ligumia recta), purple wartyback mussel (Cyclonaiastuberculdya), sheepnose mussel (Plethobasus cyphys), spike mussel (Eliipodila.tata), pallidshinerlfish (Hybopsis amnis),, river redhorse fish (Moxostoma caritm), and/or the westernsand darter (Ammorcryptacldarum) impacting the Kankakee River in Will, County,,linois8. TheExelon Nuclear-Braidwood Generating Station.Official(s) identified below is authorizedto execute.th.s agreement Execution by such Exelon Nuclear-Braidwood Generating StationOfficial(s) hindicates acceptance of all termsand conditions described inthis agreement.Printed on recycled and recyclable stock llin oi sI Department ofNatural ResourcesOne Natural Resources Way -Springfield, Illinois 62702-"h Up://dnratof e.I. usFor the. ITL.. Department of Natural .ResourcesDate Signed". ,v ...'.. 6?.. i Please print.dnam. andofficialDam Sighed =!Printed on and recyclable stock Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ-4 Category: Aquatic EcologyStatement of Question:Section 3.1.3 of the ER describes grills, trash rakes, and traveling screens within the lakescreen house and the river screen house. Provide the following information:(a) Describe the mesh size of traveling screens at the lake screen house.(b) Describe the through-screen velocity at the traveling screens at the lake screenhouse.(c) Clarify whether the intake houses include any fish return structures. If fish returnstructures occur, discuss estimates of survival rates for fish that go through thereturn structure.(d) Describe the cleaning and maintenance procedures at the river screen house anddischarge structure, including the frequency of dredging, physical cleaning, andother maintenance procedures.Provide the following references:(e) Exelon Generation (Exelon). 2009. Letter from Exelon Generation (L. Coyle) toU.S. Army Corps of Engineers (K. Bliss) regarding Regional Permit #8 Utility LineApplication to Dredge the River Inlet to the Intake Forebay of the BraidwoodGenerating Station's River Screen House on the Kankakee River. February 3,2009.(f) U.S. Army Corps of Engineers (ACOE). 2009. Letter from U.S. Army Corps ofEngineers (K. Wozniak) to Exelon Corporation Braidwood Nuclear GeneratingSystem (L. Coyle) regarding authorization to proceed with proposed dredging.June 11,2009.(g) Exelon Generation Procedure CR-BR-120-4130, Braidwood Lake MicrobiologicalStrategic Plan.(h) CW-2, Circulating Water Training Figure 39-3, Lake Screen House Sectional(June 13, 2013, Rev. 1).Response:a) Lake screen house traveling screen mesh size = 3/8 inchb) Lake screen house traveling screen intake velocity = 2.37 fps (100% cleanscreen @ low water depth of 20.7 ft)c) Neither the lake screen house traveling screen nor the river screen housetraveling screen has a fish return system.d) Cleaning and maintenance procedures at the river screen house and dischargestructure are as follows:1 of 3
- 1. River Screen HouseThe potential need for cleaning and maintenance at the river screen house intakewould be first identified through routine- surveillance activities and may resultfrom the any of the following causes:* excessive sedimentation in the intake structure forebays* macro-biological fouling in the intake structure forebays" silt accumulation on the Kankakee River bottom in front of the bar grillsOnce a potential need has been identified, further inspection by divers is initiatedto evaluate whether an action level identified in procedure BwMP 3300-092,River Screen House Diver Related Inspections, has been exceeded. If an actionlevel has been exceeded, appropriate cleaning activities are initiated. There is noestablished frequency at which these as-needed activities occur.In the cases of excessive sedimentation in the intake structure forebays and siltaccumulation in front of the bar grills, maintenance dredging may be necessary.A description of the most recent maintenance dredging activity to remove siltaccumulation in front of the bar grills is provided in the attached application to theU.S. Army Corps of Engineers dated February 3, 2009 for a regional dredgingpermit and in the resulting permit.2. River Discharge StructureThe Braidwood diffuser discharge structure, which began operating in lateDecember 2010, consists of seven diffuser nozzles inside a concrete diffuserspillway buried flush with the river bottom in the deepest part of the river. Thediffuser nozzles are inspected annually by a diver to evaluate the need formaintenance. If an inspection indicates that maintenance is required, ExelonGeneration expects that divers will be able to complete the necessary workwithout impeding normal flow in the Kankakee River or impacting aquaticspecies. Also, Exelon Generation does not expect to conduct maintenancedredging in the vicinity of the diffuser because operation of the diffuser nozzlesflushes sediment away from the spillway structure. The previously existing riverdischarge canal, which releases to the river at surface elevation, remains as abackup discharge system. Maintenance dredging also has not been necessaryin the vicinity of the previously existing discharge canal outfall.e) The requested document is attached.f) The requested document is attached.g) A summary of Exelon Generation Procedure CR-BR-120-4130, Braidwood LakeMacrobiological Strategic Plan, is attached instead of the procedure itself perclarification received from NRC staff subsequent to issuance of this request foradditional information.h) The requested document is attached.2 of 3 List Attachments Provided:1. AQ e) Exelon Generation (Exelon). 2009. Letter from Exelon Generation(L. Coyle) to U.S. Army Corps of Engineers (K. Bliss) regarding RegionalPermit #8 Utility Line Application to Dredge the River Inlet to the IntakeForebay of the Braidwood Generating Station's River Screen House on theKankakee River. February 3, 2009.2. AQ f) U.S. Army Corps of Engineers (ACOE). 2009. Letter from U.S. ArmyCorps of Engineers (K. Wozniak) to Exelon Corporation Braidwood NuclearGenerating System (L. Coyle) regarding authorization to proceed withproposed dredging. June 11, 2009.3. AQ g) Summary of Exelon Generation Procedure CR-BR-120-4130,Braidwood Lake Macrobiological Strategic Plan4. AQ h) CW-2, Circulating Water Training Figure 39-3, Lake Screen HouseSectional (June 13, 2013, Rev. 1).3 of 3 EN-AA-105Revision 4Page 14 of 14Attachment 2Example Verification Completion FormPage 1 of IVerification DocumentationCorrespondence/Letter number: WI .- OriginaiAgency/External Stakeholder: uS Anal &,,, -SubmittRecipient of Correspondence: Mlv.6. M-vt..,(name and title if known)Purpose of Submittal: Pe-m: I A0,14 vt "10 i .Originating Office: 0 Cantera E3 Kennett Square IPreparer: _ Rn4 j iýL, AJ-IL /I (print) If ,(sign)Peer Reviewer: /L3a, ,4,- Q(print) (sign)Certified Mail Return Receipt Requested: 0 Yes 0 NoApprovals (check box if applicable)tion Date: I/A109____al Due Date:~iSit'(specify)"(date)'(date)Applicable Date Review Signature of Reviewer Date of_ Needed ReviewSite Departments ,_Chemistry ___I___ 1______-_Operations 03Engineering 13Regulatory Assurance oq L3 .2 ; ::A2e.-OOther: ________(specify) 0CorporateSite Management _ _,Plant Manager eport Signed and ApprovedSite Vice President 03Attach additional page for comments.TSP ATi", 0 K Exelon Generation Company, LLC www.exeloncorp.com NuclearBraidwood Station Nuclear35100 South Route 53, Suite 84Braceville, IL 60407-9619February 3, 2009BW090016Ms. Kate BlissRegulatory Branch, Permits SectionUnited States Army Corp. of EngineersChicago District111 North Canal Street, 61h FloorChicago, Illinois 60606-7206Re: Regional Permit #8 Utility Line Application to Dredge the River Inlet to the IntakeForebay of the Braidwood Generating Station's River Screen House on theKankakee River
Dear Ms. Bliss:
Please find enclosed a Regional Permit #8 Utility Line Application for the Exelon GenerationCompany, LLC (EGC) Braidwood Generating Station. EGC is proposing to dredge the riverinlet to the intake forebay located on the Kankakee River. Make-up water to Braidwood'scooling pond is pumped from the river screen house on the Kankakee River to the northeastcomer of the cooling pond. The dredging is necessary to maintain adequate make-up waterflow to the station's cooling pond.We are available to respond to questions at any time during your review process. Shouldyou have any questions or require additional information, please contact Raymond Hall at(815) 417-3203.Respectfully,Lawrence M. CoylePlant ManagerBraidwood Generating StationEnclosure cc: Illinois Environmental Protection AgencyIlinois Department of Natural Resources TABLE OF CONTENTSSection I -Completed Joint Application Form* Clear project purpose and need statement (Exhibit I A)* Acreage to be impacted and quantity of dredged materials (Exhibit I1B)* Map showing the area of the project (Drawing 1)* Latitude and longitude (Drawing I)* Photographs of the site (Exhibit IC)* Tax parcel map and adjoining properties (Drawing 3)* Project drawings (Drawings and 2)* Activity schedule (Page I of joint application form)* Compensatory mitigation plan (Exhibit I D)Section 2 -Regional Permit #8 Utility Line ProjectsSection 3 -Wetland Delineation ReportSection 4- SESC Plan (titled Environmental Management Plan)Section 5 -United States Fish and Wildlife Service Letter Section 1 -Completed Joint Application FormIncludes the following as noted on the application checklist:" Clear project purpose and need statement (Exhibit IA)" Acreage to be impacted and quantity of dredged materials (Exhibit I B)" Map showing the area of the project (Drawing 1)" Latitude and longitude (Drawing 1)* Photographs of the site (Exhibit IC)" Tax parcel map and adjoining properties (Drawing 3)" Project drawings (Drawings I and 2)" Activity schedule (Page 1 of'joint application form)" Compensatory mitigation plan (Exhibit I D) JOINT APPLICATION FORM1. Application Number (to be assigned by Agency) 2. Date 3. For agency use only (Date Received)February 3, 2009Mounth /Day / Y'cra4. Name and address of applicant S. Name. address, and tit e of authorized agentExelon Corporation Raymond HallBraidwood Nuclear Generating System Environmental Supervisor35100 S. Rt. 53 Suite 84 35100 S. Rt. 53 Suite 84Braceville, IL 60407 Braceville, IL 6047Telephone no. during ( )417-2000 Telephone no. during ( 815 ) 417-3203business hours 8 business hoursinclude area code ( ) include area code6. Project Description and Remarks: Describe in detail the proposed activity, its purpose, and intended use. AlSO indicate me drainage area at the watershedto the downstream limit. Use attachments if needed.See attached "Project Description"7. Names, addresses, and telephone numbers of all adjoining and potentially affected property owners, including the owner of the subject property if diferentfrom applicant.See attached "Adjoining Property Owners"S. Location of activity Legal Description:13 32N 9E 3RDKankakee River 1/4 Sec Twp. Rge P.M.Name of waterway at iocatlan of the activity UTM (Universal Transverse Mercator): IfavailableAddress: Along Illinois Highway 113 Zone North EastStreet, road, or other descriptive locationCuster Park Custer ParkIn or near city or town Name of Local Governing CommunityWill County, Illinois 60481County State Zip Code9. Date activity is proposed to commence April 2009 Estimated Time of Construction One week10. Is any portion of the activity for which authorization Is sought now Yes r No r' If answer Is "Yes" give reasons in item 6.complete?Month and Year the activity was completed Indicate the existing work on drawings.11. List all approvals or certifications required by other federal, interstate, state, or local agencies for any structures, construction, discharges, deposits. or otheractivities described in this application. If this form is being used for concurrent application to the Corps of Engineers, Illinois Department of Natural Resources, andProtection Agency, these agencies need not belisted. Issuing Agency Type of Approval Identification No. Date of Application Date of Approval12. Has any agency denied approval for the activity described herein or for any Yes I (fYes,activity directly related to the activity described herein? No I I explain in item 6.):. Application is hereby made for authorizationsof the activities described herein. I certify that I am --x x,,famillar with information contained In the 4 y I ,, clklapplication, and that to the best of my knowledge Signature of Applicant or Authorized Agent,iid lielief, such information is true, complete, Lawrence M. Coyle -Plant Manager.ind accurate. I further certify that I possess the ____ __ __ __ __ __ __ ___ofApplicantorAuthorizedAg enttuthotity to undertake the proposed ' '-P~int~d"ame- Applicant or Authorized AgentNCR"FORM 42608 AUG 02 Mx CORPS OF ENGINEERS COPY -l IDNR/OWR COPY F" IEPA COPY -- APPLICANT'S COPY LOR UALITYORIGINALU~J~J'i~II9.**1~Al4* *, 1 'I:...*~ I;..1/4,A~-~Properfty- Boun da ry- jLEGEND:Sraidw.3,,O Srati-m0+1(ing P(,-,je.--tLI1i.Dewatering -LOCATIOiN:Dredge AreaSuaidtwood Stati.:.Siao:eville, IL.Dredge AreaLocation: Lot 41.250896 Long -88.132915Drawing,!1M.A.UG 02 *CORPS ...F EN'3INEERSC'OPY DRCRCP' ( EACP 'PLCrISCP(] I DNWOWR COPY '- C] IEPA COPY[].APPLICANTS COPY of ConcreteExcavation to Extend 80Feet from Center of BarRackNormal Pool............' *'". ."'............... ... " ."" "'lmen.* V.. .. .... .. .533.0SE.DI.M-E'" N.. ..TS ;". " '. * , 1., * .......-t-'o, -, *530*.0'* , ..,,.-,-. ;. :' -12;9.BottomRacksEli +1oiunq fr'rj.--:tLO-CATIO"N:E:,ac"e-ille, ILDrawing 2*.G AUG 02 CORPS OF ENG INEERS -OPY[:] I ONRAMR COPYC] IEPA COPY C:] AP PLICANTS COPY POUORQALITY ORIGINAL I--II. -J340101LIST OF ADJACENT PROPERTY OWNERSNO. NAME1. See Attached SheetADDRESS'I2.3.4.08 AUG 02AU CORPS OF ENGINEERS COPY[] IDNRIOIiVR COPY[] IEPA COPYE] APPLICANT'S COPY Exclon Braidwood Station Dredging Project Adjacent Property OwnersSite PIN Name Address Mailing Address, if Sourcedifferent1 01-24-13-401-006-0000 Lester Erdmann 21730 US Rt. 113 RecorderWilmington, IL 604812 0 1 -24-13-401-012-0000 Custer Township 21750 Highway 113 Recorder_ Volunteer Fire Custer Park, IL 604813 01-24-13-401-011-0000 Exelon Generation Co W Rt 113 Recorder__ LLC (site) Wilmington, IL 604814 01-24-13-401-002-0000 Ronald and June 21860 and 21864 Rt. 113 Worth Bank Trust RecorderSoutherland and/or Wilmington, IL 60481 Trust 1886Worth Bank 6825 1111h St.Trustl886* Worth, IL 604825 01-24-13-404-006-0000 Brian and Cynthia 21926 W Rt. 113 RecorderLewis Wilmington, IL 604816 08-25-18-300-041-0000 Donald Vana S Peterson Ln. 34901 South Peterson Lane RecorderI Wilmington, IL 604817 08-24-13-402-016-0000 William and Patricia 34911 S Wurtz Rd. RecorderDel Fiacco Wilmington, IL 604818 08-24-13-402-011-0000 Ann Lynch S Wurtz 1713 Avalon Avenue RecorderWilmington, IL 60481 Joliet, IL 604359 08-24-13-402-010-0000 John and Mary Paris S Wurtz 228 Southeast Circle Drive RecorderWilmington, IL 60481 Joliet, IL 6043310 08-24-13-402-009-0000 James Joyce, Robert 34858 S. Wurtz Rd. RecorderJoyce, and Mary Wilmington, IL 60481KonradI1 08-24-13-402-018-0000 Julianne Hish 34832 Wurtz Rd. 1476 Eastwood Avenue RecorderWilmington, IL 60481 Highland Park, IL 6003512 08-24-13-402-007-0000 Gregory Fritz 34818 S Wurtz Recorder08-24-13-402-015-0000 Wilmington, IL 6048108-24-13-402-017-0000 _ _ 1 Exelon Braidwood Station Dredging Project Adjacent Property Owners13 08-24-13-402-006-0000 Sergio and Maria S Wurtz 1106 Bristol Bend RecorderZoruba* and/or Wilmington, IL 60481 Orland Park, IL 60467Marquette Bank Trust1239914 08-24-13-402-005-0000 Kathleen Kennedy 34780 Wurtz Rd. RecorderWilmington, IL 6048115 08-24-13-402-004-0000 Basil and Arlene Hicks 34754 S Wurtz RecorderWilmington, IL 6048116 08-24-13-402-003-0000 Michael and Susan 34738 S Wurtz Rd. RecorderEsposito Wilmington, IL 6048117 08-24-13-402-002-0000 Robert and Susan Darin 308 Kankakee River Dr. 500 N. Prairie Avenue RecorderWilmington, IL 60481 Joliet, IL 6043518 08-24-13-402-001-0000 Michael Skinner 21727 Angle Dr. RecorderI , Wilmington, IL 60481*Deed in Trust; property tax bill sent to this party Exhibit IA -Joint Application Form Item #6 Project DescriptionThe applicant proposes to mechanically dredge approximately 1,000 cubic yards ofaccumulated river sediments from in front of the existing Braidwood Generating StationLake Make-Up River Screen house. Approximately 0.14 acres will be affected bydredging activities. The purpose of the dredging is to reestablish a channel in the riverbottom that was excavated as part of the screen house's original construction.The dredging operation shall consist of the removal of approximately 1,000 cubic yardsof sand and sediments from the front of the River Screen House (see attached drawingsand calculations). The sediments will be removed by mechanical methods. These mayinclude the use of a dragline, dredge barge and/or the use of a 'vacuum' type truck. Thedredged material and any water removed will be transported to a holding pond fordewatering. The holding pond shall be constructed at the River Screen House. Theholding pond or 'intermediate' pond shall be approximately 100' x 150'. The "pond"will be excavated to a depth of approximately 2.5 feet. The sides of the pond will bebermed with sides 2 feet high. The berms shall be constructed in such a way to minimizeseepage through the walls. The sediments will remain within the bermed area of theintermediate pond until dried at which time it will be removed and transported to anupland storage area.Existing slopes at the River Screen House may be re-rocked to minimize erosion and theroadways may be improved to facilitate easy access to the river by the dredgingequipment. All materials will be acceptable to applicable standards. Exhibit I B -Dredge Area/Volume CalculationBraidwood Station Intake Dredging 2009* "-teZ5' ~--- IWidth(0t)Height(ft)Area(ft2)Avg. Depth ofMaterial to beDredged (ft)DredgedMaterialVolume(ft3)8,470.0Volume(cubic yards)AreaA121262640 2,420B(I)B(2)404040205205202,7606802,0803.53.53.56.55313.767.467.41,820.01,820.0C/DD AloneC Alone69344,420.010,400.0163.7385.2997.4Total Area =6,2200.14ft2acres Exhibit ICV--.1*- --.~"ZV" "; 4.4b29, JJXý, -mvqb-U003,~0a0-IG)I-2I-Braidwood Nuclear Station and River Intake/Discharge Location Map. .,.ý-U00~0cI-0~-I-42I-Braidwood Nuclear Station River Intake and Discharge (Close Up). ...-- -. -- .._ _° : _', -_- -_ _ _,_ : 'I' ... -..-i .- .-.z...- --.. ... *._ = =_ ._ .. ....-".: ... ..... -= *_.-.-*- .-.-- ..-.. -Art'.. 7f.-2..;_.. -- ~~~~~... ... ..-.-.--.-..-...0Braidwood Nuclear Station Intake Structure on the Kankakee River (View to Northwest) [POR QUALITYORIGINAL3L --- ---- ----.~ ~ W... ..7I q4 icc~4 Exhibit 1D -MitigationPer the USACE guidelines, projects that impact greater than 0.10 acre of wetland or impact aHigh Quality Aquatic Resource (HQAR) and/or and Advanced Identified (ADID) wetland willrequire mitigation. If mitigation is necessary, the project manager in your county is to becontacted to discuss mitigation options.There are three options for mitigation; applicants may propose using a combination of any optionnoted below:I. Purchase mitigation credits from a mitigation bank, if appropriate and available.2. Provide on-site mitigation and/or provide restoration/enhancement to on-site and/or off-site resources.3. Provide permanent protection and management for a unique existing natural resource.The dredge area is 0.14 acres and will remain a wetlands area. The dewatering area (approx. 0.3acres) for the dredged material will be left to function as a wetlands area after completion of thedredging project. Section 2- Regional Permit #8 Utility Line Projects
- i. The permittee is required to restore the construction area to pre-constructionconditions, including grading to original contours and revegetating disturbedareas with native vegetation (or other vegetation approved by the District)immediately upon completion of the project. A restoration plan that includes a1-foot contour topographic map, shall be submitted with the notification.8. UTILITY LINE PROJECTSRP8 authorizes the construction, maintenance and repair of utility line activitiesand associated facilities in waters of the United States. This includes trenchingand backfilling activities for utility lines and fill activities for construction ofsubstations and related appurtenances (temporary and permanent access roads,construction pads, stormwater management facilities, fencing, parking lots, etc.),poles, pads, anchors, outfall structures, and foundations for overhead utility linetowers, utility lines under (e.g., through directional drilling) or over navigablewaters (regulated under Section 10 waters only), and outfalls and associated intakeswhich are authorized, conditionally authorized, specifically exempted, or areotherwise in compliance with the National Pollutant Discharge Elimination Systemprogram (Section 402 of the Clean Water Act). Authorization under RP8 is subject tothe following, which shall be addressed in writing and submitted with thenotification:a. Projects that impact no more than 0.5 acres of waters of the U.S., and do notimpact any high-quality aquatic resources, will be processed under Category I.b. Projects that impact over 0.5 acres and up to 1.0 acres of waters of the U.S.,and/or impacts high-quality aquatic resources, will be process under CategoryII.c. The impact to waters of the U.S. shall not exceed 1.0 acres. For projectsthat impact over 0.10 acres of waters of the U.S., the permittee is required toprovide compensatory mitigation.d. Authorization under RP8 is subject to Individual water quality certificationunder Section 401 of the Clean Water Act in the following waters:1) Chicago Sanitary and Ship Canal2) Calumet-Sag Channel3) Little Calumet River4) Grand Calumet River5) Calumet River6) Chicago River (main stem)7) South Branch of the Chicago River (including South Fork)8) North Branch of the Chicago River (including East and West Forks and SkokieLagoons)9) Lake Calumet10)Des Plaines Riverll)Fox River (including the Fox Chain of Lakes)12)Lake Michigan13)Pettibone Creek14)All Public and Food Processing Water Supplies with surface intake facilities(as specified in the LEPA's List of Public and Food Processing WaterSupplies Utilizing Surface Wate;)23
- e. For a project site adjacent to a conservation area, the permittee shallrequest a letter from the organization responsible for management of theconservation area, which recommends measures to protect the area from potentialimpacts that may result from construction activities. A copy of the requestand any response received from the organization shall be submitted to theDistrict with the notification.f. Stormwater management facilities shall generally not be constructed in alinear body of water such as a river, or perennial, intermittent or ephemeralstream or creek.g. The project should be designed such that stormwater does not directlydischarge into waters of the U.S. All water shall be infiltrated or detainedand treated prior to discharging into waters of the U.S. In addition,stormwater should be discharged using methods that promote infiltration andwater quality treatment, such as level spreaders, infiltration trenches andvegetated swales.h. The permittee shall establish and/or enhance an upland buffer of native plants(or other appropriate vegetation approved by the District) adjacent to allcreated, restored, enhanced or preserved waters of the US., including wetlands,rivers, streams, creeks, ponds and lakes etc. However, the installation ofunderground and/or overhead utility line towers, poles, footings and anchorsare exempt from the buffer requirement.i. The permittee is required to restore the construction area to pre-constructionconditions, including grading the disturbed areas to original contours andrevegetating (with native vegetation or other appropriate vegetation approvedby the District) all disturbed areas immediately upon completion of theproject. The restoration plan, along with a 1-foot contour topographic map ofthe project area, shall be submitted with the notification.j. The waters of the U.S. to be impacted shall be limited to the minimumnecessary to construct the utility line.k. The construction area for linear utility line projects shall be limited to awidth of 50 feet, except in farmed wetlands where there is an establishedAgricultural Impact Mitigation Agreement with the Illinois Department ofAgriculture. All designated work area(s), including construction staging areas,shall be drawn onto the submitted construction plans and clearly labeled.1. Any mechanized clearing of vegetation in the utility corridor shall bescheduled no more than seven (7) calendar days preceding installation of theutility line in that segment of the corridor. In no case shall vegetation. inthe entire corridor be cleared prior to installation of the utility line.m. For utility line projects, directional drilling (regulated in Section 10waters only) or dry crossing techniques, such as fluming, shall be used if thewaterbody to be crossed contains perennial flow. The construction drawings andproject narrative shall depict the location of all construction access areas,dewatering pit(s), jacking and receiving pits, and shall discuss the potentialneed for "utility checks within the regulated area, and for the removal anddisposal of bentonite slurry (by-product).n. If the project involves the use of directional drilling in navigable waters(Section 10 waters only) notification shall include a contingency plan. Thecontingency plan shall discuss actions to stabilize the work area, to employalternative construction methods, and the process to obtain additional permitsnecessary to complete the project.o. Material resulting from trench excavation may be temporarily (up to 30 days)sidecast into waters of the U.S. provided that the material is not placed insuch a manner that is dispersed by currents or other forces and is containediýsing approved soil erosion and sediment control measures.24
- p. Utility lines shall not adversely alter existing hydrology of waters of theU.S., including wetlands. In wetland areas, utility line trenches shall belined with clay, or other impervious materials or structures (such as cut-offwalls) to ensure that the trench through which the utility line is installeddoes not drain waters of the U.S. In order to prevent a french drain effect;gravel bedding cannot be used as backfill material in the trench. The methodchosen to prevent the draining of wetlands shall be drawn onto theconstructions plans and clearly labeled.q. In wetland areas, the trench shall be backfilled with topsoil excavated fromthe trench in the same stratification in which it was removed.r. All temporary construction activities shall be constructed in accordance withthe requirements of RP7, which adhere to items c through i, as listed in underRegional Permit 7, "Temporary Construction Activities" which shall be addressedin writing and submitted with the notification.s. All disturbed areas of the project (utility corridor, construction access andstorage areas, disturbed slopes and streambanks, etc.) shall be stabilized(e.g., blanketed and seeded) immediately upon completion of constructionactivities in any one segment of the project. In no case shall soilstabilization be delayed until the project is completed.Note: Overhead utility lines constructed over Section 10 waters and utility linesthat are routed in or under Section 10 waters without a discharge of dredged or fillmaterial require a Section 10 permit (except for pipes or pipelines used totransport gaseous, liquid, or liquefiable slurry substances over navigable waters ofthe United states, which are considered to be bridges, not utility lines, and mayrequire a permit from the U.S. Coast Guard pursuant to Section 9 of the Rivers andHarbors Act of 1899). Any discharges of dredged or fill material associated withsuch pipelines will require a Corps permit under Section 404.9. MAINTENANCERP9 authorizes:1. Repair or rehabilitation of any previously authorized, currently serviceable,structure or fill, provided that the structure or fill is not to be put to usesdiffering from those uses specified or contemplated for it in the original permit orthe most recently authorized modification. Minor deviations in the structure'sconfiguration or footprint including those due to changes in materials, constructiontechniques, or current construction codes or safety standards which are necessary toimplement the repair or rehabilitation are permitted, provided the environmentalimpacts resulting from such repair or rehabilitation are minimal. This permitauthorizes the repair, rehabilitation, or replacement of those structures destroyedby storms, floods, fire or other discrete events, provided the repair orrehabilitation is commenced or under contract to commence within three years of thedate of their destruction or damage. Maintenance dredging and beach restoration arenot authorized by this permit. All projects meeting these requirements shall beprocessed under Category I.2. Maintenance of existing flood control facilities, retention/detention basins,and channels that were constructed by the Corps and transferred to a local sponsorfor operation and maintenance. Maintenance is limited to that approved in amaintenance baseline determination made by the District. This determination will bebased on the approved plans, the facility actually constructed, maintenance history,present versus original flood control needs, and presence of sensitive/uniquefunctions and values of aquatic resources that may be adversely affected.Applicants are encouraged to meet with the District to establish the maintenancebaseline prior to notification. This RP does not authorize the removal of sedimentand associated vegetation from natural watercourses. All projects meeting theserequirements shall be processed under Category II.25 Section 3 -Wetland Delineation ReportWetland Delineation report prepared for area surrounding the project. No wetlands wereobserved during the time of the site visit. The project area is located in "Forested Wetlands" asobserved on the National Wetland Inventory Map.
"" -J o rta) '(Ji Platt'] 1520 Kenslnolon Road, Suite 204.., .Oak Brook. Illinois 60523-2139Phone 630-993-2100Fax 630-993-9017wvrimmostardiplallenv.comAugust 27. 2008Mr. Bryan RisleyProject ManagerExelon Nuclear -Braidwoocl Generating Station35 100 S. Route 53Braceville, Illinois 60407Re: Wetlands Delineation Report for Braidwood Station River Outfall
Dear Mr. Risley:
In support of the evaluation of river outfall modifications, MOSTARDI PLATTENVIRONMENTAL (MPE) perlbf'ned a wetlands delineation of the land surroundingthe area. This report contains the results of the wetlands delineation.Project ProfessionalsThe wetlands delineation was conducted by Mr. Claude Mays of MPE, with support byMr. Jeffirey Meyerhoff (August 4, 2008) and Mr. David Osadjan (August 6. 200S).Delineation DatesThe wetlands delineation was pcrformed on Monday, August 4, 2008, but work wasinterrupted clue to the occurrence of a thunderstoni. The delineation field work resumedon August 6, 2008.Location for DelineationThe delineation was conducted at the existing Kankakee River eflfluent discharge andintake house property, which was constructed in 1976, localed approxinmlately 3.75milessouth-soutlheast ofidowntown Wilmington, Illinois and approximately 4.9 miles east ofthe Exclon Braidwood Nuclear Power Facility Property. The property is on the southbank of the Kankakee River in the southeast quarter of Section 13 in 'rownship 32 North,Range 9 East in unincorporated Will County, Illinois (Attachment A). Exclon Nuclear -Braidwood StationRiver Discharge Wetlands DelineationAugust 2S, 2008Page 2Background DataDuiing the completion of this wetland assessment and delineation, MPE performled abackground data review and a preliminary site inspection. The background data reviewincluded the review of available infomlational publications to assist in determining iheprescncc of the mandatory wetland criteria (i.e., hydric soils, wetland hydrology,and hydrophytic vegetation) using the procedures outined in the USACE' WetlandsDelineation Manual (Environmental Laboratories, 1987). vIVPE performed a site wetlanddelineation assessment using standard delineation methodology described in the 1987USACE Wetland Delineation Manual in an effort to confinr the background datainformation and to identify any wetland2 areas on the above referenced property notidentified in the background data review that exhibit the three mandatory wetland criteriaindicated above. The following sections describe our procedures, findings, andobservations for the background data review and t[e site wetland assessment.Standard of CareMPE conducted this wetland assessment and delineation in accordance with generallyaccepted practice-in a manner consistent with that level of care ordinafily exercised bymembers of the industry currently performing wetland assessments in the same locality andunder similar conditions of time and accessibility of information. No othcr representations,expressed or implied, and no warranty or guarantee is included or intended to be part of thiswetland assessment or report.Limitation of UseThis report has prepared it for Exelon Nuclear for use in river discharge permittingactivities. Wilh the exception of regulatory agencies, no additional party may use theinformation contained in this report without MPE's and Exelon Nuclear's writtenpermission. MPE's duties and obligatioits extend to Exelon Nuclear and to no other party.This report must. le read and interpreted as a whole. Individual sections of this report andits allachnienls are dependent upoit the balance of this rcport, and upon the terms,L)nitcd States Army Coijp. ni" Engineers"T"hose areas thai are inmidaled or saturated by surrace or grniumdwater ai a Ir'equency and duralionsul'fhcient it) support, and that trader normal circuLMstncCs do support, a INre-:1nCIIC nIf vegetaliOn typ)icallyadap11ted 6i.r lif*C in sll l'a O ite soil cS o riditions.I1 Exelon Nuclear -Braidwood StationRiver Discharge Wethinds DelineationAugust 28. 2008Pauc 3conditions, and stipulations contained in the proposal, the report, and any writtenani:ednients accepted by M PE.Background Data ReviewMPE reviewed and utilized the following documents and publications in an effort toestablish the previous and current conditions that exist on the referenced properties and toidentify areas along (he referenced properties that may exhibit wetland conditions:* Previous Christopher B. Burke Engineering, Ltd. wetland assessmentreport prepared for Exclon and dated February 13, 2008.*e United States Geological Survey (USGS) Topographic Map(Wilmington. Illinois Quadrangle, Photo Revised 1973).* United States Department of Agriculture (USDA) Soil ConservationService Soil Smiey' of HI.ill County, Illinois (1985).* United States Department ofthe Interior National Wetland Inventory(NWI) Maps (Essex and Wilmington, Illinois, 1981).The following sections describe MPE's review of the aforementioned documents andpublications.Topographic Hap ReviewnAccording to the Wilmington topographic map, the Exelon river discharge area is locatedin Will County, Illinois:Exelon Kankakee River Discharge Location SummaryCounty Location Description\Will County "-Southeast quarter Section 13 in Township 32 North. Range 9 East Exclon Nuclear -Braidwood SlalionRiver Discharge Wetlands DelineationAuguist 28, 2008Page 4Based on our review of the topographic map. NIPE identified the following drainagefeatures that lie adjacent to or on the above referenced Property thai may exhibit potentialwetland condilions. The following feature is shown in blue on the topographic mapincluded in Attachment B:, Kankakee River -Northeast side of the Property in Section 13 in Township 32 North,Range 9 EastBraidwood Station's discharge channel to the Kankakee River is not shown on thetopographic map.MPE's review of the topographic map identified the topography of the river dischargearea as relatively flat with the exception of a portion of the project area located on thewestern side near the discharge bWilding (Attachment B). Specifically, the topographicmap indicates an elevation of approximately 550 feet above mean sea level (msl) for thearea adjacent to the discharge building and an elevation of approximately 535 feet abovemsl ror the Kankakee River bank river discharge area boundary which slopes towards thenortheast.Based on our review of the topographic map, the regional surface water flow in the areaof the Property appears to be in a northeasterly direction. Based on MPE's review of thetopographic map, MPE identified no apparent areas on the Property that would exhibitsuspect wetland conditions. MPE did identify the Kankakee River along the northeasternboLundary that exhibit wetland conditions.Coumiti, Soil Survej, ReiewvMPE's review of the soil survey of Will County, Illinois (Soil Surveys) identified thepresence of hydric soils3 and non-hydric soils on that portion of Property on concern. Thefollowing table summarizes the hydric soil on the Property.' %:\ ytvdi soil is a soil thal is saIIrailc(l, hlntiluct. or pontdd long.! e ligh dull'Ing 2he glowing Sason 1itde Velp anacrobic ctnditions Io the su.rtatce. Exclon Nuclear -Braidwood StationRiver Discharge Wetlands DelineationAugust 28, 2008Page 5Hydric Soils SummaryHydric SoilSeries' Soil Series Description Soil Series LocationSawmill Poorly drained soil located on The entire river discharge area hIlls within thisSilty Clay lloodplains that are subject to mapped soil series.Loa m. 0-2'h fr'equent flooding during Novemberslope, Ilrough June. Silty clay loam soil ii(3 107A)" the upper 17 inches exhibits a verydark gray color and exhibits dry,moderate medium granular stnrcturethat is friable with a few subroundedpebbles I to 3 mm in diameter.Hydric soil series listed on (ie Illinois hydric soil list prepared by the NRCSSoil Series Identification NumberBased on our review of the Soil Survey, the river discharge work area will be located inlan area identified containing a hydric soil. The location of the hydric soil is labeled inorange with the soil series identification number on the Soil Survey map included ilAttachment C.MPE's review of the Soil Survey also identified the presence of perennial streams thatintersect and flow along the Property (i.e.,,Kankakee River and Exelon discharge channelto the Kankakee River). The presence ofa hydric soil, and perennial stream on oradjacent to the Property as shown on the Soil Survey included in Attachment C suggeststhat wctland conditions may be present. However. the aforementioned areas would alsorequire the presence of hydrophytic vegelalion and welland hydrology in order to satisfythe USACE's definition of a wetland. Therefore, IVMPE perforned a wetland sitedelineation assessment in order to identify the presence of the three mandatory wetlandCriteria.iVationtl IJIetiaud In ventorJ, iaps ReviewIVlPE's review of the NWI. Map indicates thai identified wetlands are located on or nearthe Property. Hlowever, according to the United States Fish and Wildlile Service, the NWIMaps arc prcpared with the usc of aerial photographs and not by field observations.Additionally, idewtified wetlands on the NWI Map are based on vegetation, visiblehydrology, and geography during the specific season and year of the aerial photographs.Therelbrc, the NWI Map generalizes the ldcntified wetland area locations a:nd may not Exelon Nuclear -Braidwood StationRiver Discharge Wellands DelineationAugust 28, 2008Page 6include small isolated wetlands or wellands obscured in the aetial photographs by densevegetative cover. A wetland site delineation assessment would be necessary to confirm(lie presence of hydric soils. wetland hydrology, and hydrophytic vegetation and to verifythe background data information.The following table summarizes the identified wetland areas located along or near theProperty (luring the NWI Map review. The identified wetlands are highlighted ill blue (forwatcr) or green (for land-based wetland) on the NWI Map included in Attachment D.National Wetland Inventory Map SummaryWetlandArea Description Classifications Wetland Type'Discharge Channel to Kankakee River Not Mapped Lower Perennial StreamKankakee River R2UBI-I1 Lower Perennial StreamProperty PFO I A' Forested WetlandIllinois Department of Conservation publication titled A Field Guide to Wedtands in Illinois, (198S)-Lower perennial stream with an unconsolidated bottom, permanently flooded, excavatedForested area with brief periods of flooding during the growing seasonMPE's review of the NWI Map indicated that wetlands are present in certain locations onand adjacent to the river discharge area. Since the NWi Map identified wetlands adjacentto and in close proximity to the river discharge area, the potential may exist for wetlandsto be present in those areas. The identified welland areas on the NWI Map closelyresemble the potential wetland areas identified during MPE's review of the topographicmap with the exception of [he discharge channel to the Kankakee River.Additionally, hydric soil is present in all of the NWI identified wetland areas whichsuggests that wetlands are likely to be present in those areas.A.erial Photograplh ReviewMPE's review of available aerial photographs Ibr the Property. which are included inAttachment E, indicates that the Exeldn property is surrounded by a community park to1hc so0tlh (i.e.. Custer Park), agricultural land to the west, rural residences to the north,and the Kankakee River to (lie east wilih residences lining the far bank. Based oln ourreview of ihe aerial photographs, MPE identified potential welland areas on and along the Exelon Nuclear .- Braidwood StationRiver Discharge Wetlands DelineationAugLust 28, 20708Page 7Property that closely resemble tile infornation contained in the topographic map and theNWI Map as summarized in the previous sections, which includes the presence ofprominent drainage features (i.e., Kankakee River and discharge channel to the KankakeeRiver).MPE also noted during the aerial photograph review an area southeast of the proposedriver discharge area that contains two man-made surface impoundments within anenclosed fence area that do not appear on the topographic map. These impoundmentswere not addressed for this wetland delineation assessment since they are out of the riverdischarge area.Wetland Site Delineation, AssessmentOn August 4 and 6, 2008 1M1PE performed a wetland site delineation assessment of theriver discharge area to confirm the background data infornation and to assess thepresence of the three mandatory wetland criteria of hydrophytic vegetation, hydric soil,and wetland hydrology. The project area appeared to be generally flat and consistedprimarily of unimproved land along the Kankakee River.The curient conditions of the project area closely resemble the condition of the projectarea as shown in the aerial photograph suggesting that normal circumstances4 exist at theproject area with the exception of the of the parking area located south of the dischargebuilding. In the 1999 aerial firom TerTa Server, the parking area extended further to thenortheast than what is shown in the Google 2005 aerial. It appears that the northeasternportion of the parking lot area was not maintained and vegetation grew into the area.During the wetland site delineation assessment, MPE performed a visual soil, vegetationand wetland hydrology survey along on the Property containing the river discharge projectarea that exhibited apparent hydric soil, hydrophytic vegetation and wetland hydrology asindentified from the NWI, aerial and topographic maps, and soil survey.NIPE used the methodology as outlined in the 1987 USACE Wetland Delineation Manualto perform the wetland delineation. As a result. MPE identified andlor confirmed tileprcsence of wctlands on the areas oftlhe project area which are summarized in theIbllowing table and shown on an aerial photograph in Attachment F. A copy of the aerial'N mal I SIlICCS .i (h olste Cull diio;ls thalt would exist il' y i l'ihiC three mandclatory weth.tid cri .eriahad not been altered o r reiinved within tile pas4 rive years. Exelon Nuclear -Braidwood SlationRiver Discharge Wetlands DelineationAugust 28. 2008Page 8photograph showing the locations of each wetland delineation sampling point is includedin Attachment G. Copies ofthe routine wetland deternination data form, as specified inthe 1987 USACE Wetlands Delineation Manual, are contained in Attachment H. Selectphotographs documenting MPE's wetland site delineation assessment are included inAttachment 1.Wetland Delineation Assessment SummaryExelon River DischargeWetlandLocationldentification Wetland Location Wetland ApproximateLocation Number Description/Characteristics Type SizeSection 13, I Kankakee River and river bank (sloped) Lower 0.07 mile wideTownship Perennial32 North, StreamRange 9EastSection 13, 2 Discharge Channel to K.ankakee River Lower 300 ft long andTownship and adjacent channel bank (sloped) Perennial 50 fl wide32 North, StreamRange 9EastConclusionsIn summary, MPE's background data review and wveland delineation assessment, whichdescribes conditions for a narrowly defined time period, on the river discharge areaidenti fled only 2 areas that exhibited wetland conditions on and along the project area asdescribed in the aforementioned sections. Installation of the new river discharge in theseareas may potentially impact the idcntifled wetland areas. The area delineated for theproposed access road and crane pad, and potential new river discharge route runs througha forested welland identified from the NWI map, and based upon IVMPE's delineationassessment, this portion of the project area does not meet tie vegetation and hydrologycriteria for a welland. -t -Int'ilo I-na"' :JFxelon Nuclcjr3" -Braiidwood StationRiver Discharge Wetlands DelineationAugust 28, 2008Page 9If unavoidable impacts are proposed for any of the wetlands, permits or exemptions mustfirst be obtained from the proper agencies. These could include: Local Governmental Unit(City), State (DNR). Federal (Army Corps of Engineers), and/or other applicable entitiesneed to be obtained before impacts occur.I hope that the information provided in this letter will prove sufficient for your needs. Ifyou have any questions or require additional assistance, please feel free to contact me at630-993-2106.Sincercly,MOSTAR.DI PLATT ENVIRONMENTAL.Claude E. Mays, 11; CHItMM .REPSenior Project Manager ATTACHMENTSAttachment A: Exelon Nuclear -- Braidwood Station Intake and DischargeProperty LocationAttachnient B: USGS Topographic MapAttachment C: Will County, Illinois Soil Survey MapAttachment D: National Wetland Inventory MapAttachncnt E: Aerial PhotographsAttachment F: River Discharge Area Identified WetlandsAttachment G: Wetland Delineation Sample PointsAttachment H: Routine Wetland Determination Data FormsAttachment 1: Select Wetland Delineation Photographs., Attachment AExelon Nuclear- Braidwvood Station Intake and Discharge Property Location -.C0and Discharge Property Boundaryk Boundaryr-Exelon Intake and Discharge Property and Diffuser Project Area -LExelon Braidwood IntakeDiffuser Pipe Proiect Area Attachmenit Buscs Topographic MaIip
Attichment Cwill County, Illinois Soil Survey Map Soil Map-Will County, Illinois(River Intake and Dischauge Location -Soil Map)-u00gO!Cl>1I 401-4I-4CA1mete3a040so160240~euI1I0300000LISD, Natural Resources2 Conservation ServiceWeb Soil Survey 2.0National Cooperative Sol Survey812712008Page 1 of 3 Soil Map-Will County, Illinois(River Intake and Discharge Location -Sail Map)MAP LEGENDArea of interest (AOR)LM Area of Iuas (AOl)SoilsSoil Map UnitsSpeclal Point FeaturesBlowoutBorrow PitX. clay spot# Closed DepressionGravel PitGravelly SpotL Landfillk Lava Flow*l&. MarshMine or Quarry@ Miscellanaou WaterPerennial Waterv Ro& Outcrop+4" Saona SPots Sanw spotSeverely Eroded Spot0 Shilhole] Slide or SUp0 Sodic Spot= Spoil Areao Sltny Spot4Z Very Stony Spot' wet SpotA, OtherSpecial Una FeaturesGuwyShor, swap slope"- OtherPolitical FeaturesMunictpallitts0 WaesWater Features[I oceansStreams end CanalsTsrampflatlonRajsýRonds,%interstate, Hig~hwaysUS RoutesState SLoca Roadsr Other ReadsMAP INFORMATIONOriginal soll survey map shetls were prepared at publication scale.Viewing scale and prnting swale. however. may vary from theoriginal Please rely on the bar scale on each map sheet for propermap measurements.Source of Map: Natural Resources Conservation ServiceWeb Soil Survey URL htlp'Jlwebsoilsurvey.nrcs.usda.govCoordinate System: UTM Zone 16NThis product Is generated from the USDA-NRCS certified data as ofthe version date(s) listed below.Sol Survey Area: Will County, IllinoisSurvey Area Data: Version 5. Jan 3,2007Date(s) aerial images were photographed: 1998The orthophoto or other base map on which the soil lines werecompiled and digitized probably differs from the backgroundImagery displayed on these maps. As a result some minor shiftingof map unit boundaries may be evidenLUSDA Natural Resourcesa Conservation ServiceWeb Seol Survey 2.0National Cooperative Soil Survey8/2712008Page 2 of 3----a--- Soil Map-Will County, IllinoisRiver Intake and Discharge Location -Soil MapSoil Map-Will County, Illinois River Intake and Discharge Location -Soil MapMap Unit LegendWill County, Illinois (IL197)Map Unit Symbol Map Unit Name Acres In AO Percent of AOl53102 Markham silt loam, 6 to 12 1.2 7.3%percent slopes, eroded719A Symerlon One sandy loam, 0 to 0.1 0.3%2 percent slopes7198 Symerfon One sandy loam, 2 to 0.1 0.4%5 percent slopes719C2 Symerton fine sandy loam, 5 to 4.9 30.7%10 percent slopes, eroded3107A Sawmill silty clay loam, 0 to 2 9.7 60.7%percent slopes, frequentlyfloodedW Water 0.1 0.5%Totals for Area of Interest (AOl) 15.91 100.0%j1J Natural ResourcesConservation ServiceWeb Soil Survey 2.0Cooperative Soil Survey8/2712008Page 3 of 3 Attachiment DNatioll-If Wetlanid Invyen tory Alap River Intake and Discharge Property -NWI MapU 20W88 10 W88 0 W88 0WzLnU..zIQ* NNJ~vppO1A~N.JGL-.AI..zaAI~ .UszNzIRIllinois'R2U WBi N7. *~~*1*i:frL.zLegendOhloweLscanC3QIl*Out of rangeInterstateMajor RoadsOther RoadInterstateSat/Sue hignaSuas highwayRoadso CUlesUSGS Quad Index 24KLower 48 Wetland PolygonsEsaurlnne and Miating Deepwatlr*. Fstuarifn gnd Martng Waetand.-aFmshwmar Emergent Welland1'3 Freshwutgr Wetlandr-ushwatr PondZf Other(3 RhvdngLower 48 Available Welland DataHen431gitalDeligalNo cab,, NHD Stmeamso3 Counties 110Ko States 108Ko3 South Americar- North America Scale: 1:6.433iz-Iz~-- I.7:AI*, _ ,-rAz88 20 W881--10 W88-1.0 W85 50 WMap center-. 41* 15' 4.9" N. 88 8W 2.8" WThts map is a user generated static output from an Internet mapping site and is for generalmWerance only. Data layers that appear on this map may or may not ho 8mate. ctment orreitala. THIS MAP IS NOT TO BE USED FOR NAVIGATION. Attaehmenit EAerial Photograplhs 10000"4I--42"-4Intake and Discharge Property -March 24, 1999 Aerial from Terra Server 5 .I-. I.CtitIntake and Discharge Property -2002 Aerial from Terra Server1-1729M-ý__,..ý--- joU0SI-b-4Intake and Discharge Property -April 2005 Aerial from Google Attachmnent FRiver Discharge Area Identified Wetlands River Discharge Area Identified Wetlands('-...4 .: ;.u c -z 9 " *4I-.... ....IdentifiedWetland-IPOOR QUALITY ORIGINALIlI g* " i J1-. *.-.--~. £~.A "i:,~ ~I".;'I0Aý.4""Fi:.r~II j~1-tn~.~f' VtI,it}{I A,.4.*11 H. j~CK.&V ao doa__ ~ -:MI.I--c-Q000G~)zI-[ii; Attach menit GWetland Delineation Sample Points River Discharge Area Wetland Delineation Sample Points-~~-~-- -~. A(.tclihment 1HRoutine Wetland Deliication Data Forms Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Sitc: River Discharge Area Date: 8/4/2008Applicant/Owner: Exelon Nuclear -Braidwood Station Nuclear -Cotuty WillBraidwood StationInvestigator: C. E. Mays, 11. and J. Meyerhoff State: IllinoisDo Nomial Circumstances exist on the site? No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes (0 Transect [D:Is tie site area a potential Problem Area? No(If needed, explain on reverse.) -Plot ID: AVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator1. Arrhlnathertnt aladius Herb FACU 6.(Oat Grass)2. Dactylisglonierata L Herb FACU 7._(Orchard Grass)3. Poa sylvestris Herb FAC(Woodland Bluegrass)4. rlmbrasia artemnsilfolla Herb FACU 9.(Common Rngweed)5. Erlgeron strigosus Herb FAC- 10._(Daisy Flenbane)Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 1/4 or 25%Remarks: Overhanging tree branches from ENE, but no trees Wiin 15 yards.FAC neutral test- 1 wet:3 non -ivet.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksToNo Drift LinesField Observations: No Sediment DepositsNo Drainage Patterns in WetlandsDepth of Surface Water: None (in.) Secondary Indicators (2 or more required):No Oxidized Root Channels in Upper 12Depth of Free Water in Pit: None (in.) No Water-Stained LeavesYes Local Soil Survey DataDepth to Saturated Soil: >1.2 (in.) NoFAC-Neutral TestOther (Explain in Remarks)Remarks:No moist soil observed within upper 12 inches.a Mapped soil type listed on Will County hydric soil list and exhibits a seasonal highwaiter table at thiesurface unless drained during .Jan -May.~l. SOILSMap Unit Name Snwmillsilty clay loam, 0-2% slope Drainage Class(Series and Phase): (3107A) Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic i-aplaquoll Confirm Mapped Type: (9 NoProfile DescriptionDepth Matrix Color Mottle Colors Motl 'rexture, Concretions,(inclies) Hrzon (Munsell Moiti (Munsell Moist) Abundancc/ContraMt Structure. etc.Silty clayloam,0 to 6 Ap 10 ArR 3/2 friable, dry with fineroo tsSilt clay loam,6 to 12 Al 10 YR 511 --friable, dry, with fewfine rootsHydric Soil Indicators:__Histosol __ Concretions(-Tisfic Epipedon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils_ Aquic Moisture Regime X Listed on Local Hydric Soils ListReducing Conditions __ Listed on National Hydric Soils ListX Gleyed or Low-Chroma Colors -Other (Explain in Remarks)Remarks:o Noted low-chroma colors throughout soil profile.* Soil profile closely resembled Sawmill soil series (hydric soil), whilch is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMIENATIONfydrophytic Vegetation Present? Yes ( (Circle) (Circle)Wetland Hydrology Present? Yes tiffs Sampling PointHydric Soils Present? (SD No Within a Wetland YesRemarks:o Soil pit located approx.iuantely41* 15.108', 88" 08.060'° NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/'92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/4/2008Applicant/Owner: Exclon Nuclear-Brnidwaod Station County WillInvestigator: C. E. Mays, Ell and J. Meyerhoff State: IllinoisDo Normal Circumstances exist on the site? No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes ( Transect ID: IIs the site area a potential Problem Area?(If needed, explain on reverse.) 6 No Plot iD: BVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Ihdicator1. Arrhlnathcrum elatlus Herb FACU 6.(Oat Grass)2. Daciyfis glomerata L Herb FACU 7.(Orchard Grass)3. Ilicfa americaina Herb Not 8.(American vetch) Assigned4. Lotus coraiculata L Herb FAC- 9.(Bird's Foot Trefoll)5. Erigeron stHigesus Herb FAC- 10.(Daisy Flenbane)Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 0/5 or 0%Remarks: NOTE: American vetch has no wetland indicator status assigned per USDA PLANTdatabase.FAC neutral test -NOTE: 1 unassigned and 2 neutral. thus, 0 wet:2 non-wetHYDROLOGYRecorded Data (Describe in Remarks):Stream, Lake, or Tide GaugeAerial PhotographsOtherX No Recorded Data AvailableWetland Hydrology Indicators:Primary Indicators:No InundatedNo Saturated in Upper 12 InchesNo Water MarksNo Drift LinesNo Sediment DepositsNoR Drainage Patterns in WetlandsSecondary Indicators (2 or more required):No Oxidized Root Chmanels in Upper 12Noo Water-Stained LeavesYes Local Soil Survey DataNo FAC-Neutral Test-Other (Explain in Remarks)Field Observations:Deptl of Surface Water:Depth of Free Water in Pit:Depth to Saturated Soil:None (in.)None (in.)>12 (in.)Remarks:a No moist soil observed within upper 12 inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal Iighwnter table at thesurface unless drained during Jan -May. SOILSMap Unit Name(Series and Phase): Sawmill silty clay loam, 0-2% slope Drainage Class(3107A) Poorly DrniuedField ObservationsTaxonomy (Subgroup): Cumullc flaplaquoll Confirm Mapped Type: ' NoProfile DescriptionDeptlh Matrix Color Mottle Colors motle Texture, Concretions,rinclcs) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure. etc.Oto 6 Ap 10 YR 3/2 -Silty clayloam, friable,dry with fine roots6 to 12 Al 10 YR 511 Silt clay loam, friable,6 to12 A l0YR 51 ,dry, with fcw fiuc roots-I-ydric Soil Indicators:Histosol __ ConcretionsFlistic Epipedon -High Organic Content in Surface Layer in Sandy Soils_ Sulfidic Odor -Organic Streaking in Sandy SoilsAquic Moisture Regime _.Listed on Local Hydric Soils List-Rcducing Conditions _ Listed on National l-[ydric Soils List.XGlcyed or Low-Chronma Colors -Other (Explain in Remarks)Remarks:o Noted low-chroman colors throughout soil proride.* Soil prufile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes o (Circle) (Circle)Wetland Hydrology Present? Yes Is this Sampling PointHydric'Soils PresentI Dj No Within a Wetland Yes ONRemarks:" Soil pit located approximately4l1 15.111', 88* 08.060'" NOTE: NW! Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92.1 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Aren Date: 8/4 & 6/2008Applicant/Owner: Exclon Nuclear -Braidwood Station County WillInvestigator: C. Mays, Ill & J. Meyerhoff(8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on tie site? &Y e No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes S Transect ID: 2Is tie site area a potential Problem Area? No Plot IDA(if needed, explain on reverse.) I Plot ID:VEGETATIONDominant Plant Species Stratum Indicato Dominant Plant Species Stratum IndicatorI .Elyrls virqncus 6. Toxcadendron.Virgenin Wild Rye) Herb FACU radicans (neggcundo) Vine FAC+(VirginiaWildRye)_ (Eastern Poison Ivy)2. Dactylls glomerata L Herb FACU 7. fitis riparia Vine FACW-(Orchard Grass) (Riverbank Grape)3. Verbesina virginiea Uerb FACU- 8.(W.LIte crownbeard)4. Campanulasltr 9.a,,ericamum (American Herb FACBellflower)5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 3/6 or 50%Remarks: FAC neutral test: 3 wet:3 non -wetNot considering vegetation dominant, must be >50%JI-YJ)ROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: Nione (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (iii.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >12 (in.) __ Other (Explain in Remarks)Remarks:* No moist soil observed within upper 12 inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal highwnater table at thesurface unless drained during Jan -May. I -SOILSMap Unit Nand he Sawmill silty clay loan, 0-2% slope Drainage Class(Series and Phse): (3107A) Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Haplaquoll Confirm Mapped Type: n NoProfile DcscriptionDepth Mvlatrix Color Mottle Colors t Tcxture, Concretions,i~nch_ Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure. etc,Siltyclay loam, friablewith fine roots, pebbles0 to 7 Ap 10 YR 3/1 1-3 mm din.at 6-7inches, smoothboundary7 to 12 Al 10 YR 3/1 Siltyclay loam, friablewith fine rootsHydric Soil Indicators:_-listosol __ Concretions__ Histic Epipedon -High Organic Content in Surface Layer in Sandy Soils_ Sulfidic Odor
- Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydric Soils List__ Reducing Conditions -_ Listed on National Hydric Soils ListX Gleyed or Low-Chroma Colors -Other (Explain in Remarks)Remarks:" Noted low-chroma colors throughout soil profile.o Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes (s (Circle) (Circle)'Wetland Hydrology Present? Vag Is this Sampling PointHydric Soils Present? 0 No Within a Wetland YesRemarks:" Soil pit located approxinintely41*15.110', 88U 08.055'." On 814/2008 -pulled off job at about 9:45 AM due to thunder storm.* NOTE: N',V1 Map indicnted forested area with brief periods of flooding during the growsing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: liver Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exelon Nuclear -Braidwood Station County WillInvestigator: C. Mays, Ui1 & J. Meyerhoff (8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? (-3 No Community [D:Is the site significantly disturbed (Atypical Situation)? Yes (RD Transect ID: 2Is the site area a potential Problem Area? No(If needed, explain on reverse.) Plot ID: BVEGETATIONDor.inant Plant Species Stratum Indicator Dominant Plant Species StraLu orndicatI .Frtialus peInsjylvalica Tree FAC+ 7.(Cottonwood)2. Elyumus sirgincus Herb FACU 8.(Virginia Wild Rye)3. DactjIisglomerata L. Herb FACU 9.(Orchard Grnss)4. 10.5. II.6.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 1/3 or 33%Remarks: FAC-Neutral test = 0 wet species: 2 non-wet speciesHYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Strean, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No Inundated__Other No Saturated in Upper 12 InchesX No Recorded Data Available No. Water MarksNo- Drift LinesField Observations: No Sediment DepositsDepth of Surface Water: None (in.) No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):No Oxidized Root Channels in Upper 12Depth of Free Water in Pit: None N"-f Water-Stained Leaves(ill.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >15 (in.) Other (Explain in Remarks)Remarks:a No moist soil observed within upper 15 inches.Mapped soil type listed on Will County hydric soil list and exhibits a seasonal highwater table at thesurface unless drained during Jan -May.SOILS Map Unit Ndame): Sa:wmiil silty clay loam, 01-2% slope Drainage Class(Scrics and Phase): (31 07A) Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Haplnquoll Confinn Mapped Type: (NoProfile DescriptionDepth Matrix Color Mottle Colors Mottle Texture, Concretions,(inches Horizon (Munsc1l Moist) (Munsell Moist) Abundancc/Conlrast S.pt',jCte. cc.Silty clay loam, fewsubronded pebbles 1-0 to 7 Ap 10 YR 3/1 3 nun in diameter atabout 6-7 inches,smooth boundarySilty clay loam, fineI to 15 Al 10 YR 3/1 roots, masses ofoxidized iron in matrixat about 14 inchesHydric Soil Indicators:1-listosol __ Concreliuns__ Histic Epipedon H High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streuldag in Sandy SoilsAquic Moisture Regime jListed on Local Hydric Soils ListReducing Conditions __ Listed on Notional Hydric Soils List,Gleyed or Low-Cliroma Colors -Other (Explain in Remarks)Remarkls:o Noted low-chroma colors throughout soil profile.o Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic .Vegetation Present? Yes '"N (Circle) (Circle)Wetland Hydrology Present? Yes Is this Sampling PointHydric Soils Present? (Y No Within a Wetland YesRemarks:o Soil pit located approximately41* 15.110', 88' 08.052'" NOTE: NWI Map indicnted forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exclon Nuclear -Braidwood Station County WillInvestigator: C. Mays, M & J. Meyerhoff (8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? No Comniunity ID:Is the site significantly disturbed (Atypical Situation)? Yes '06 Transect ID: 3Is the site area a potential Problem Area? No(If needed, explain on reverse.) _,-Plot ID: AVEGETATIONDominant Plant Species Stratum. Indicator Dominant Plant SpIecies Stratum Indicator1. FraxinuspTree FAC+ 6.(Cotlonwoad)2. Aver negunde L Tree FACW- 7.(Box Elder) Tree_ _ACW-3. Elyrnus s-irghticus Herb FACU 8.(Virghida Wild Rye)4. Dctj'liisglonmrata L Herb FACU 9.(Orchard Grass)5. Aral niaudleagdos L Herb FACU 10.(Wild Sasnparilla})Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 316 or 50%Remarks: FAC-Neutral test -2 wet species: 3 non-wet speciesNot considering vegetation dominnnt, must be >50%HYDROLOGY__ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators:__ Stream, Lake, or Tide Gauge Primary Indicators:-Aerial Photographs No Inundated_ Other No Saturated in Upper 12 InchesNo Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None(in.) Yes Local Soil Survey DataNoFAC-Neutral TestDepth to Saturated Soil: >14 1 (in.) _ Other (Explain in Remarks)Remarks;* No aloist sail observed within upper 14 inches.o Mapped soil type listed on Will Cotinty hydric soil list and exhibits a seasonal higbwnter table at thesurface unless drained during Jan -May.
SOILSSrap Unit Name Sawmill silty clay loam, 0-2% slope Drainage Class(Serics and Phase): (3107A) Poorly DrainedField ObservationsTaxonomy (Subgroup): CuniuUc Haplaquoll Confirm Mapped Type: (a)NoProfile DescriptionDepthi Matrix Color Mottle Colors Mol Texture, Concretions,(inches) Horizon (Mlunsell Moist) (Muatsell Moist) Abundance/Contrust Structure. etc.Silty clay loam withfine with roots,0 to 8 Ap 10 YR 3/1 subrounded pebbles 1-3 mm in diameter atabout 6-7 inches8 to 14 Al 10 YR 31i -- _ Silty clay loam withfine with rootsHydric Soil hidicators:lHislosol __ Concretions-Histic Epipedon H High Organic Content in Surface Layer in Sandy SoilsSufidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local E-ydric Soils List-Reducing Conditions _ Listed on National Hydric Soils ListX Gleyed or Low-Chroma Colors -Other (Explain in Remarks)Remarks:* Noted low-chromn colors throughout soil profile.o Soil profile closely resembled Sawmill soil series (hydric soil), which Is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes ( (Circle) (Circle)Wetland Hydrology Present? Yes ) Is this Sampling PointHydric Soils Present? No Within a Wetland Yes (]Remarks:* Soil pit located approximately4l115.119', 88u 08.055'o NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(I.e. potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: Rtiver Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exelon Nuclear -Braidwood Station County WillInvestigator. C. Mlays, ill & J. Meyerhoff (8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? (YeD No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes (S Transect ID: 3Is the site area a potential Problem Area? Plot l':(If needed, explain on reverse.) PlotM__BVE GETATIONDominant Plant Species Stratm Indicator!. E-,mus virginicus Herb FACU 6.(Viruinia Wild Rye)2. Dactyllsghimeralm L. Herb FACU 7.(Orchard Grass)3. Lapartea cnndensis Herb FACW 8.(Wood Nettle)4. Aralia ,ndicaulosL. Herb FACU 9.(Wild Sasnpitrilla)5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 114 or 25%Remarks:" FAC-Neutial test = I wet species: 3 non-wet species" No dominance of lydrophytic vegetation adjacent to soil pit location.ITYDROLOGY_Recorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Prinary Indicators:Aerial Photographs No Inundated__Other No Saturated in Upper 12 InchesX No Rccorded Data Available Nio Water MarksNo Drift LinesField Observations: N.o Sediment DepositsDepth of Surface Water: None (in.) No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):No Oxidized Root Channels in Upper 12Depth of Free Water in Pit: Nou. (in.) No Water-Stained LeavesYes Local Soil Survey DataDepth to Saturated Soil: >14(in.) No FAC-Neutral TestOther (Explain in Remarks)Remarks:o No moist soil observed within upper 14 inches.Mapped soil type listed on Will County hydric soil list and exhibits a seasonal highwater table at thesurface unless drained during Jan -May. I -SOILSMup Unit Name Sawmill silt), clay loam, 0-2% slope Drainage Class(Series and Phase): (3107A) Poorly DrainedField ObservatiohsTaxonomy (Subgroup): Curuulic lhaplaquoll Confirm Mapped Type: NoProfile DescriptionDcptl: Matrix Color Mottle Colors Monki Texture, Concretions,(inches) Horizon (Munscil Moist) (Munsell Moist) AbundancelContrast Stnucture. etc.Silty clay loam withfine roots, subrounded0 to 8 Ap 10 YR 3/1 pebbles 1-3 mm indiameter at a bout 6-7inches, dry, friable0 to 14 Al 10 YR 3/1 Silty clay loam withflue rootsHydric Soil Indicators:Histosol _ Concretions_ Histic Epipcdon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Rcgime X Listed on Local Hydric Soils List_ Reducing Conditions __ Listed on National Hydric Soils List._,.Gleyed or Low-Chroma Colors -Other (Explain in Remarks)Remarks:" Noted low-chrorna colors throughout soil profile." Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.Hydrophytic Vegetation Present?Wetland Hydrology Present?Hydric Soils Present?Is this Samnpling PointWithin a Wetland(Circle)Yes Remarks:* Soil pit located approximately41" 15.104', 88" 08.062'o NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e. notential seasonal wetland)Approved by iiQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/4 & 81612008Applicant/Owncr: Exclon Nuclear- Braidwood Station County WillInvestigator: C. Mays, in & J. Meyerhoff(8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? Y~s) No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes (0 Transect ID: 4Is the site area a potential Problem Area?If needed, explain on reverse.) NoPlot ID: AVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator1. E'ynrus tirgiuicits Herb FACU 6.(Virginia Wild Rye)2. Dts7. Rudbeclda lachliaa L(Drchyli glmCrasa L Herb FACU (Cut-leaved Herb FACW+(Orchard Grass) coneflower)3. Eupatorillat Rugoswn [erb FACU 8.(MWhlte Snakeroot) Herb_ __ _ _4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 1/4 or 25%Remarks: FAC-Neutral test = 1 wet species: 3 non-wet speciesNo dominance of hydrophiytic vegetation adgacent to soil pit location.HYDROLOGY._ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators:_ Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more rcquired):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth orfFree Water in Pit: None (in.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >l4in.) _ Other (Explain in Remarks)Remarks:" No moist soil observed within upper 14 inches." Mapped soil type listed on Will County hydric soil list and exlhibits a seasonal high wvater table at thesurface unless drained during Jan -May. SOILSMap Unit Name Sawmill silty clay loam, 0-2% slope Drainage Class(Series and Phase): Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Eaplaquoll Confirm Mapped Type: G NoProfile DescriptionDepth Matrix Color Mottle Colors Motule Texture, Concretions,(inches) Horizon (Munsall Moistl (Munsell Moist) Abundance/Contrast Structure. etc.Silty clay loam withto10 3/1 roots, dry, friable, fine0 t Ap 10 YR I/ -roots, smoothboundary5 to 14 Al 10 YR 3/1 Silty clay loam withroots, dry, friableHydric Soil Indicators:Histosol _ Concretions-Histic Epipedon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime .Listcd on Local Hydric Soils List-Reducing Conditions _ Listed on National Hydric Soils List.XGleyed or Low-Chromo Colors -Other (Explain in Remarks)Remarks:" Noted low-chroma colors throughout soil profile." Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes 0O (Circle) (Circle)Wetland Hydrology Present? Yes Is this Sampling PointHydric Soils Present? < 51 Within a Wetland YesRemarks:" Soil pit located appro-dmately4l" 15.119', 880 08.047'" NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Aplprovcd by FIQUSACE 2/92 Data FormRoutine Wctland Determination(1987 COE Wetlands Delineation Manual)Project/Site: Rlver Discharge Area Date: 8/4& 8/6/2008Applicant/Owner: Exelon Nuclear -Braidwood Station County WillInvestigator: C. Mays, Ill & J. Meyerhoff (8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? (CVý No Community ID: __IIs the site significantly disturbed (Atypical Situation)? Yes c5 Transect ID: 4Is the site area a potential Problem Area?(Ifneeded, explain on reverse.) ,Plot ID: 0VEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum IndicatorI. Elyims virgiawieis Herb FACU 6.(Virgihia Wild Rye)2. Ii ydlrophilauln 7. fludbeckia laciniata Lvirginiasuma L Herb FACW (Cut-leaved Herb FACW+(Waierlef) coneflower)3. Eupatarithn Rugosutn Herb FACU(White Snakeroot)4. 9.5. I0,Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/4 or 50%Remarks:a FAC-Neutral test = 2 wet species: 2 non-wet species* No dominance of hydrophytle vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:_ Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available N.o Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: N (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: > 18 (in.) __ Other (Explain in Remarks)Remarks:" No moist soil observed within upper 18 inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high wvater table at thesurface unless drained durine Jan -May. SOILSMap Unit Name Sawmill silty clay loam, 0-2% slope Drainage Class(Series and Phase): (3107A) Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Haplaquoll Confirm Mapped Type: NoProfile Description .-Depth Matrix Color Mottle Colors moilI Texture, Concredons,(inches) Horizon (Munsell Moist) (Munsell Moist] Abundance/Contrast Structure. etc,Silty clay loam with0 to 5 Ap 10 YR 3/1 roots, dry, friable, fineroots, smoothboundarySilty clay loam, dry,friable, subrounded5 to 18 Al 10 YR 3/1 pebbles 1-3 mm indiameter at about 6-7inches, large root at 16inchesHydric Soil Indicators:Flislosol Concretions-Histic Epipedon H High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydric Soils List-Reducing Conditions __ Listed oan National Hydric Soils ListX Gleyed or Low-Chroma Colors _ Olher (Explain in Remarks)Remarks:o Noted low-chroma colors throughout soil profile.o Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes ý (Circle) (Circle)Wetlard Hydrology Present? Yes Is this Sampling PointHydric Soils Present? No Within a Wetland Yes "Remarks:o Soil Pit located approximately4l1 15.118', 988 018.053'o NOTE: NWI Map Indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved hy HQUSACE 2/92I Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exelon Nuclear -Braidwood Station County WillInvestigator: C. Mays, lI & J. Meyerhoff (8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? O. No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes ( Transect ID: 5Is the site area a potential Problem Area? No(If needed, explain on reverse.),,.5 Plot ID: AVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicatori. EI)WIW Pirgilnicis Llerb FACUJ 6. Populius dditoides Saplingl FAC+(Virginla Wild Rye) (Cottonwood) Shrub2. DactIls glonterata L 7. Toxicodendron Sapling/9 c 'rs Herb FACU rdbergii Shrub FAC+(Orchard ____Gross)__ (Poison Ivy),h3. Verbeidna virginica Herb FACU- 8.MWhite crownbenrd)4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/5 or 40%Remarks:, FAC-Neutral test- 0 wet species: 3 non-wet species0 No dominance of hydropbytic vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:_ Aerial Photographs No InundatedOther No Saturated in Upper 12 InchcsX No Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Chaimels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: Non. e (in.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >14 (ii.) _ Other (Explain in Remarks)Remarks:" No moist soil observed within upper 14inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water table at the.surace unless drained duriue Jan -Mav. SOILSMap Unit Name s awmill silty clay loam, 0-2% slope Drainage Class(Series and Phase): (3107A) Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic flaplaquall Conflin Mapped Type: 1 NoProfile DescriptionDepti Matrix Color Mottle Colors Moatle Texture, Concretions,fingies Horizon (Munsell Moist) (Munseli Moist) Abundance/Contros Structure, etc,Silty clay loani with0 to 6 Ap 10 YR 3/1 fine roots, smoothboundary6 to 14 Al 10 YR 3/1 Silt clay loamwithrootsHydric Soil Indicators:Histosol _ ConcretionsHistic Epipedon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime ..X.Listed on Local Hydric Soils ListReducing Conditions _ Listed on National Hydric Soils ListX Gleyed or Low-Chrome Colors -Otier (Explain in Remarks)Remarks:a Noted low-chroma colors throughout soil profile.e Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic vegetation Present? Yes Q (Circle) (Circle)Wetland Hydrology Present? Yes Is this Smnpling PointHydrie Soils Present? go Within a Wetland Yes N6Remarks:" Soil pit located approxraately4l* 15.123', 880 08.041'" NOTE: NWi Mnp indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exelon Nuclear -Braidwood Station County WillInvestigator: C. Mays, RfI & J. Meyerhoff (8/4)/D. Osndjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? (y No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes 3N Transect ED: 5Is the site area'a potential Problem Area? No(If needed, explain on reverse.) ' Plot ID: BVEGETATIONDominant Plant Species Stratum indicator Dominant Plant Species Stratum IndicatorI. Elyrus virgiaieu$s Herb FACt 6. Populais deltoides Sapling/ FAC+(Virginia Wild Rye) (Cottonwood) Shrub2. Dacaolis glomerata L Herb FACU 7.(Orchard Grass)3. Rudbeckia lacininta L 8. Elephantopus(Cut-leaved Herb FACW+ carolinianus Herb FAC-coneflower) (Elephant's Foot)4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/4 or 50%Remarks:" FAC-Neutral test = I wet species: 2 non-wet species" No dominance of hydrophytic vegetation adjacent to sofi pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No [nundatedOther N.o Saturated in Upper 12 inchesX No Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >16 (in.) _ Other (Explain in Remarks)Remarks:" No moist soil observed within upper 16inches." Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water table at thesurrace unless drained during Jan -May.:i S6ILSMap Unit Name Sawmill silty clay loom, 0-2% slope Drainage Class(Series and Phase): (31107A) FPoorly DrainedField ObservationsTaxonomy (Subgroup): Cumullc flaplaquoll Confirm Mapped Type:( NoProfile DescrintionDepth Matrix Color Motile Colors Mottle Texture, Concretions,(inches) Horizo (Munscil Moist) (Munsell Moist) Abundance/Contrnst Structure, tc,Silty Clay loam with0 to 8 Ap 10 YR 3/1 flue roots, dry, friable,smooth boundary8 to 16 Al 10 rR 3/1 Silt clay loom withrootsHydric Soil Indicators:Histosol ConcretionsHistic Epipedon -High Organic Content in Surfhce Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy SoilsAquic Moisture Regime _&Listed on Local Hydric Soils ListReducing Conditions _ Listed on National Hydric Soils ListKOGlcycd or Low-Clroma Colors __ Other (Explain in Remarks)Remarks:" Noted low-chromo colors throughout soil profile." Soil profile closely resembled Sawmill soil series (hydric soil) , which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes ( (Circle) (Circle)Wetland Hydrology Present? Yes Is this Sanpling PointHydric Soils Present? (S No Within a Wetland Yes ,-.{NRemarks:" Soil pit located approximately4l1 15.123', 88' 08.044'" NOTE: NWI Map indicated forested area with brief periods of flooding during the growiug season(i.e., potential sesornal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 1/4 & 6/2008Applicant/Owner: Excion Nuclear -Braidwood Station County WillInvestigator: -C. Mays, II & J. Nfeyerhoff (8/4)/D. Osadjau (8/6) State: IllinoisDo Normal Circumstances exist on the site? (ye§) No Community ID:Is tie site significantly disturbed (Atypical Situation)? Yes ( Transect ID: 6Is the site area a potential Problem Area? No(If needed, explain on reverse.) Plot ID: AVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum indicatorI. rlymus virginicus Herb FACU 6. Eupatorhima Rugasunt Herb FACU(Virginia Wild Rye) (White Snakeroot)2. Dartylis gloinerata L. Herb FACU 7. Acer rubumt L Tree FAC(Orchard Grass) (Red maple)3. Jiudbeclia laciniata L 8. Popuhts detoides(Cut-leaved Herb F4A C W+ Sapling/ FAC+coneflower) (Cottonwood) Shrub4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 3/6 or 50%Remarks:r 1AC-Neutral test = 1 wet species: 3 non-wet species* No dominance of hydrophytic vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depdt of Surface Water: Nana (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: Non. e (in.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >15 (in.) _ Other (Explain in Remarks)Remarks:* No moist soil observed within tipper 15 inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water table at thesurface niless drained during .an -May. SOILSMap Unit Name .Sawmill silty clay loam, 0-2% slope Drainage Class(Series and Phase): (3107A) Poorly DrniaedField ObservationsTaxonomy (Subgroup): Cumulic H-anpinquoll Confirm Mapped Type: (9) NoProfile DescriptonDepth Matrix Color Motile Colors Maus Texture, Concretions,Horizon (Maunsell Moist) (Munsell M oisti Abundance/Contrast Structure. etc.Silty clay lonms with0 to 6 Ap 10 YR 3/1 fine roots, dry, friable,smooth boundarySilt clay loam withroots, subrounded6 to 15 Al 10 YR 3/1 pebbles of 1-3 mmdiameter at about 7-8inchesHydric Soil Indicators:Histosol __ Concretions-Histic Epipcdon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydria Soils List-Reducing Conditions __ Listed on National Hydric Soils ListX Glayed or Low-Chroma Colors -Other (Explain in Remarks)Remarks:" Noted low-chrome colors throughout soil profile.o Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhvdrlc soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes N .(Circle) (Circle)WeHand Hydrology Present? Yes N k Is this Sampling PointHyrcSoils Present? (Des No Witdin a Wetland YesRemarks:" Soil pit located approximately4 1'l5.127', 88' 08.025'" NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., p.tential seasonal wetland)Approved by 'IQUSACE 2192Il Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exelon Nuclear -Braidwood Station County WillILvestigator: C. Mays, MU & J. Meyerhoff (814)/D. Osndjan (8/6) State: nlinoisDo Normal Circumstances exist on the site? ( oe No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes O Transect ID: 6Is the site area a potential Problem Area? N(If needed, explain on reverse.) N Plot ID: BVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator1. rElynus virginies Herb FACU 6. Populus deltoides Sapling/ FAC+._(Virginia Wild Rye) (Cottonwood) Shrub2. Impatdenspallida 7. TaxiAWdrndron Sapling/ FAC+(Yellow Jewelweed) Herb FACW rydbargil Shrub________________________________(Poison Ivy)3. Dactylis glnserata L Uerb FACU S. .Ids riparin Vine FACW-(Orchard Grass) (Riverbank Grape)4. __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 9. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 4/6 or 66%Remarks:a FAC-Neutral test = 2 wet species: 2 non-wet speciesa Dominance of hydrophytie vegetation adjacent to soil pit location.HYDROLOGY__ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNRo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) N.o Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: ->I27 (in.) _ Other (Explain in Remarks)Remarks:* No moist soil observed within tipper 15 inches.* Mapped soil type listed on Will County hydric soil list and exhibits it seasonal high water table at thesurface unless drained during Jan -May. SOILSMap Unit Name Sawmill silty clay loam, 0)-2% slope Drainage Class(Series and Phase): Poorly Dr'inedField ObservationsTaxonomy (Subgroup): Cunulic E'aplaquoll Confirm Mapped Type: (9 NoProfile DescriptionDepth Matrix Color Mottle Colors Molls Texture, Concretions,(inch Horizon (Munsell Moist) (Munsell Moisti Abundanee/Contrast Structure, etc.Silty clay loam with0 to 7 10 YR 3/1 roots, dry, friable,smooth boundarySilt clay loam with7 to 17 10 YR 3/1 --rootsHydric Soil Indicators:Histosol ConcretionsHistic Epipcdonn High Organic Content in Surface Layer in Sandy SoilsSulfldic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydric Soils ListReducing Conditions __ Listed on National Hydric Soils ListX Gleyed or Low-Chroma Colors -OtLer (Explain in Remarks)Remarks:a Noted low-chronma colors throughout soil profile.* Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countybydric soil list. Confirmed mapped soil type.WETLAND DETERM1NATIONHydrophytic Vegetation Present? No (Circle) (Circle)Wetland Hydrology Present? S (I Is this Sampling PointHydric Soils Present? No Within a Wetland YesRemarks:" Soil pit located approximately41* 15.125', 88' 08.031'o NOTE: NWI NWI Map Indicated forested area with brief periods of flooding during the growingseason (i.e., potential seasonal wetland)Approved by HQUSACE 2192 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exclon Nuclear -Braidwood Station County WIUInvestigator: C. Mays, I1 & L. Meyerhoff (8/4)/D. Osadjan (8/6) State: filinoisDo Nonnal Circumstances exist on the site? ( No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes S Transect ID: 7Is the site area a potential Problem Area? No(If needed, explain on reverse.) Plot ID: AVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum IndicatorI Elmls Virghius Serb FACU. Toxicodendron Saplingt(Virginia Wild Rye) H boi so vShrub__________________________________(Poisnfl Ivy) F C2. Rudbeckia lacinduta L 6. Popuhls delfoides Snpling/(Cut-leaved Herb FACW+ (Cottonwood) Shrub FAC+coneflower) (Cottonwood)_Shrub3. Acer rubunt L Tree FAC 7.(Red maple)4. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 8. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Percent of Dominant Species that are OB L, FACW or FAC(excluding FAC-). 4/5 or 80%RemarksF IAC-Neutral test = I wet species: 1 non-wet species* Dominance of hydrophytic vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Streamn, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Frce Water in Pit: None (in.) Yes Local Soil Survey DataN.o FAC-Neutral TestDepth to Saturatcd Soil: >1.. (in.) _ Other (Explain in Remarks)Remarks:o No moist soil observed within upper 16 inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water table at thesurface unless drained during Jan -May.[.11 SOILSMap Unit Name Sawmill silty clay loam, 0-2% slope Drainage Class(Series and Phase): (3107A) Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Haplaquoll Confirn Mapped Type: n) NoProfile DescriptionDepth Matrix Color Mottle Colors Motde Texture, Concretions,(inches) Horizon (lunsell Moist (Munseil Moist) Abundance/Contrast Structure. etc.Silty clay loam with0 to 6 Ap 10 YR 3/1 roots, dry, friable,smooth boundary6 to 16 Al 10 YR 3/1 Silty clay lonm withrootsHydric Soil Indicators:Histosol _ ConcretionsHistic Epipedon H- igh Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Surcakiug in Sandy Soils_Aquic Moisture Regime X Listed on Local Ilydric Soils List-Reducing Conditions _ Listed on National Hydric Soils ListX Gleyed or Low-Chruma Colors Otlier (Explain in Remarks)Remarks:o Noted low-chroma colors throughout soil profile.e Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed ma ed soil t, e.WETLAND DETERMINATIONHydrophytic Vegetation Present? VZci No (Circle) (Circle)Wetland Hydrology Present? Yes Is this Sampling PointHydric Soils Present? No Within a Wetland Yes NRemarks:* Soil pit located approximately4115.125', 88' 08.027'" NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by 'IQUSACE 2/92J Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: -8/4 & 6/2008Applicant/Owner: Exelon Nuclear -Braidwood Station County WillInvestigator: C. Mays, 1I & J. Mcyerhoff(8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? (f No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes o Transect ID: 7Is the site area a potential Problem Area? No(If needed, explain on reverse.) I Plot _ D: __ _VEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum IndicatorElymnets 1vilniets 6. Toxicodendroit Sapling/(Virgla Wild Rye) Herb FACU rydbergii Shrub FAC+i(Polso Ivy)S?. 7. Populuis deitoidexv Sapling/ FAC+(Cottonwood) Shrub3. 8.4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/3 or 66%Remarks:a FAC-Neutral test = 0 wet species: 1 non-wet specieso Dominance of hydrophytic vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:-Stream, Lake, or Tide Gauge Primary Indicators:_ Aerial Photographs No Inundated_ Other No Saturpted in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNo. Sediment DepositsField Observations: NoR Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) No- Local Soil Survey DataNo FAC-Neutral TestDeptI to Saturated Soil: >14 (in.) -Other (Explain in Remarks)Remarks:o No moist soil obscn'ed within upper 14 inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water tNbie at the..... unless drained duting~ Jurn -May.ii SOILSMap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrninedField ObservationsTaxonomy (Subgroup): Cumuilic HIaplnquoll Confirm Mapped Type: (! NoProfile DcscriptionDapdt MatrLi Color Mottle Colors Mottle Texture, Concretions,finc-es) [orizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc,Silty clay loam with0 to 6 Ap 10 YR 3/1 roots, dry, friable,clear smooth boundnry6 to 14 A] 10 YR 3/1 Silty clay loam withroots, dry, fiinbleHydric Soil Indicators:Histosol _ ConcretionsF- istic Epipedon -High Organic Content it Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy SoilsAquic Moisture Regime A Listed on Local Hydric Soils List-Reducing Conditions __ Listed on National Hydric Soils ListXGleyed or Low-Chronma Colors -Other (Explain in Remarks)Remarks:" Noted low-chromo colors throughout soil proffle." Soil profile closely resembled Sawmill soil series (hydric soU), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? No (Circle) (Circle)Wetland Hydrology Present? Yes (M) Is this Sampling Pointydric Soils Present? (! No Within a Wetland YesRemarks:o Soil pit located approximately4l' 15.126', 88" 08.030'" River bank location -approximately41 15.127', 380 08.027' which is about 18 feet northeast of 7B" NOTE: NV1 Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92I Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation M%'anual)Project/Site: River Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exelon Nuclear- Brnidwood Station County WillInvestigator: C. Mays, II & J. Meyrhoff_(8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? I No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes (a Transect ID: 8Is the site area a potential Problem Area? No(If needed, explain on reverse.) '-- Plot ID: AVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator.E 6. Toxicodendron Sapling/.mVhgin Wid Rye) Herb FACU rq'dbergii Shrub FAC+('Virginia Wild Rye) (Poison Ivy)2. Verbesina virginiljl Herb FACU- 7. Populhs deltoides Sapling/ FAC+(Wiite crownbeard) (Cottonwood) Shrub3. 8.4. 9.5. t10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/4 or 50%Remarks:o FAC-Neutral test = 0 wet species: 2 non-wet species* No dominance of hydrophytic vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No. Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNoo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) -No Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >I6 (in.) _ Oflter (Explain in Remarks)Remarks:* No moist soil observed within upper 16 inches.* Mapped soil type listed on Will CountSy hydric soil list and exhibits a sea sonal high water table at thesurfaice unless drained during Jan -May. SOILSMap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic [laplaquoll Confirm Mapped Type: Yes NoProfile DescriptionDepti Matrix Color Mottle Colors Mottle Texture, Concretions,(ilclies) Horizo (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.Silty clay loam with0 to 8 Ap 10 Y'R 3/1 roots, dry, friable,clear smooth boundarySilty clay loam with8 to 16 Al 10 YR 3/1 --roots, dry, friable,clear smooth boundaryHlydric Soil Indicators:Histosol _ ConcretionsHistic Epipedon H High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy SoilsAquic Moisture Regime X Listed on Local Hydric Soils List.Reducing Conditions _ Listed on National Hydric Soils ListX Gleyed or Low-Chroma Colors __ Other (Explain in Remarks)Remarks:u Noted low-chroma colors throughout soil profile.a Soil profile closely resembled Sawmill soil series (hydric soil), which is listed oan Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMNIATIONFHydrophytic Vegetation Present? Yes QNJ (Circle) (Circle)Welland Hydrology Present? Yes (S ) Is this Sampling PointHydric Soils Present? '(S ) No Within a Wetland YesRemarks:" Soil pit located approximately4l1 15.126', 880 08.035'" NOTE: NWI Map indicated forested urel with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2J92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 3/4 & 6/2008Applicant/Owner: Excion Nuclear- Braidwood Station County WillInvestigator: C. Mays, 1IH & J. Keyerhoff (814)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the sije? No Community LD:Is the site significantly disturbed (Atypical Situation)? Yes 9 Transect ID: 8Is the site area a potential Problem Area? Po(If needed, explain on reverse.)_ Plot _ 'D: _VEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator6. Toxicodondron Saplingl.VirginiuWis Flerb FACU rydbergii Shrub FAC+('irginia Wild Rye) (Poison Ivy) Shrub2. 7.3. 8.4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 1/2 or 50%Remarks:I* FAC-Ncutral test = 0 wet species: I non-wet specieso No dominance of hydrophytie vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:-Aerial Photographs No Inundated_ Other No Saturated in Upper 12 InchesNo Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) No Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >16 (in.) _ Other (Explain in Remarks)Remarks:* No moist soil observed within upper 16 inches.o Mapped soil type listed on Will Cnitnty hydric soil list and exhibits a seasonal high water table at thesurface unless drained during Jaun -May. SOILSSOILSMap Unit Name Drainage(Scries and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Baplnquoll Confirm Mapped Type: (3e NoProfile DescrintionDepth Matrix Color Motle Colors Mottle Texture, Concretions,(inches) Horizon (Munscll Moist) (Munsell Moist) Structure. etc,Silty clay loam with0 to 8 Ap 10 YR 3/1 roots, dry, friable,clear smooth boundarySilty clay loam with8 to 16 Al 10 YR 3/1 -- -roots, dry, friable,clear smooth boundaryHydric Soil Indicators:Histosol __ ConcretionsFlistic Epipedon -High Organic Cuntcot in Surrace Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy SoilsAquic Moisture Regime X.Listed on Local Hydric Soils List.Reducing Conditions _ Listed on National Hydric Soils List_X Gleyed or Low-Chroma Colors -Other (Explain in Remarks)Remarks:" Noted low-chromn colors throughout soil profile." Soil profile closely rcsemrbled Sawmiil soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMIIATIONHydrophytic Vegetation Present? Yes M (Circle) (Circle)Wetland Hydrology Present? (YeIs this Sampling PointI-ydric Soils Present? No Within a Wetland YesRemarks:" Soil pit located approx-imately4l1 15.126', 880 08.035'* NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Detertinnalion(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8R4 & 6/2008Applicant/Owner: Excion Nuclear -Brnidwood Station County WillInvestigator: C. Mays, MI & J. Meyerhoff(8/4)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? c No Community 0: -IIs the site significantly disturbed (Atypical Situation)? Yes C Transect ID: 9Is the site area a potential Problem Area? %N(If needed, explain on reverse.) No Plot ID: AVEGETATIONDominant Plant Species Stratum Indicator Domilant Plant Species Stratum Tndicator1. EaJimu virghinu ius Herb FACU 6. Acer negunda L Tree FACW-(VlrgIhda Wild Rye) (Box Elder)2. Aftlihlanbergiafrondosa Herb FACW 7.(Common Satin Grass)3. Flarbasin, virginica Herb FACU-(iWile erownbeard)4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/4 or 50%Remarks:FAC-Neutral test = 2 wet species: 2 non-wet species* No dominance of hydrophytic vegetation adjacent to soil pit locatiou.HYDROLOGY__ Recorded Data (Describe in Remarks): Wetland H-lydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: NNone (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) No Local Soil Survey DataNo FAC-Neutral TestDeptlh to Saturated Soil: >14 (in.) __ Other (Explain in Remarks)Remarks:o No moist soil observed within upper 14 inches.o Mapped soil type listed on Will County hydric soil list nncd exhibits a scasonal high water table at thesurface unless drained durine Jan -May. SOILS.lap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Rnplaquoll Confirm Mlapped Type: ( Co) NoProfile DescriptionDepth Matrix Color Mottle Colors Motde Texture, Concretions,(jnj1s Horizon (Munsell Moist) (Munsell Moist) Abundancc/Contrast Structure, etc.Silty clay loam withroots, dry, frinble,0 to 14 A 10 YR 311 clear smoothboundary, subroundedpebbles 1-3 mm in dinat 5 -6 inchesHydric Soil Indicators:Hislosol _ ConcretionsHistic Epipedon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydric Soils List.Reducing Conditions _ Listed on National Hydric Soils List_XGleyed or Low-Chromn Colors -Other (Explain in Remarks)Remarks:a Noted low-chromo colors throughout soil profile.* Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil Ust. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes ( (Circle) (Circle)Wetland Hydrology Present? YO& 3) Is this Sampling PointHydric Soils Present? cY ) No Wiftin a Wetland Yes (Remarks:" Soil pit located approximately 41015.1321, 889 08.040'" Rivel- located approximately 41* 15.132', 880 08.039'" NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/4 & 6/2008Applicant/Owner: Exelon Nuclear- Braidwood Station County Willtnvestigator: C. Mays, Mfl & J. Meyerhoff (814)/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site! (SP No Commununity [D:Is the site significantly disturbed (Atypical Situation)? Yes 6 Transect ID: 10Is the site area a potential Problem Area?(If needed, explain on reverse.) I Plot ID: AVEGETATIONDominant Plant Species Stratumt Indicator Dominant Plant Species Stratum IndicatorI. Eljymns virginiclis Herb FACU 6. Pophids deltaides Sapling/ FAC+(Virginia Wild Rye) (Cotlonwood) Shrub2. 7. Lonicara dioica L Sapling/ FACU(Red honeysuckle) Shrub3. 8. _4. 9.5. 10.Percent of Dominant Species dint are OBL, FACW or FACFAC-). 113 or 33%Remarks:SFAC-Neutrai test -0 wet species: 2 non-wet species.No dominance of hydrophytie vegetation adjacent to sofi pit location.HYDROLOGY_ Recorded Data (Describe in Remarks): Wetland Hydrology Indicators:_ Stream, Lake, or Tide Gauge Primary Indicators:-Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available -No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) No Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >12 (in.) __ Otler (Explain in Remarks)Remarks:* No moist soil observed within upper 12 inches.* Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water table at thesurfaice unless drained during Jan -May.i SOILSMap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (31107A) Class Poorly DrninedField ObservationsTaxonomy (Subgroup): Cumulic Ilaplaquoll Confirm Mapped Type: (ý&b NoProfile DescriptionDepth Matrix Color Mottle Colors Matte Texture, Concretions,(inches) 1orizo (Muusell Moist) (Munsell Moist) Abundance/ConT'ast Stnrcture. etc.Silty clay loam with0 to 12 A 10 YR3/1 roots, dry, friable,clear smooth boundaryRefusal -rip-rap rocks12 from adjacent channieldischargeHydric Soil Indicators:Histosol __ ConcretionsHistic Epipedon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor Organic Streaking in Sandy Soils-Aquic Moisturm Regime X Listed on Local Hydric Soils List-.Reducing Conditions __ Listed on National Hydric Soils ListX Gleyed or Low-Chrome Colors -Odier (Explain in Remarks)Remarks:a Noted low-chrome colors throughout soil profile.-o Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil tpe, in the upper 12 Inches of profile.', TLAND DETERMINATIONHydrophytic Vegetation Present? Yes ( (Circle) (Circle)Wetland Hydrology Present? Yes (I Is this Sampling PointHydric Soils Present? (ý No Wifdin a Wetland Yes('Remarks:o Soil pit located approximately 41" 15.132', 88' 08.044' -No 10 B due to close location to othersampling points* Discharge channel located approximately 41' 15.132', 883 08.048' due west of 10A" NOTE: NWAI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/612008Applicant/Owner: Exeloi Nuclear- Braidwood Station County WillInvestigator: C. Mays, III &/D. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on tie site? 7 No Community ID:oIs the site significantly disturbed (Atypical Situation)? Yes (S Transect ID: 11Is tie site area a potential Problem Area? No(If needed, explain on reverse.) No Plot3: BVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum IndicatorI E inivirginics Hb FU 6. To.x'odendrons Sapling/]" Elgimu$ irgfRye) Herb FACU rydbergil Srb FAC+(Virginia Wild Rye) (Poison Ivy) Shrub2. 7.3. 8.4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 1/2 or 50%Remarks:* FAC-Neutral test = 0 wet species: I non-wet species* No doininauce of hydrophytic vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:_ Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesX No Recorded Data Available Noo Water MarksNo Drift LinesN.o Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: Non_ (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) No Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >14 (in.) __ Other (Explain in Remarks)Remarks:* No moist soil observed within uppcr 14 inches.a Mapped soil type listed on Will County hydric soil list uiid exhibits a seasonal high wvter table at thesurface unless draiued cluring Jan -May.. SOILSS ILSMap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Haplaquoll Confirm Mapped Type: De) NoProfile DescritionDepth Matrix Color Mottle Colors(inches Horizon (NMunsell Moist) (Munsell Moist)MatLUSAbundince/ContrastTexture, Concretions,Structure. etc,Silty clay loam withroots, dry, friable,clear smoothboundary, subroundedpebbles 1-3 rma din. at6-7 inches below ,rade0OtoI14 A 10YR 3/1Hydric Soil Indicators:H-listosol __ CoocredonsSHlistic Epipedon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydric Soils List-.Reducing Conditions __ Listed on National Hydric Soils ListX Gleyed or Low-Chroma Colors _ Other (Explain in Remarks)Remarks:* Noted low-chroma colors throughout soil profile.* Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confinned mapped soil type, in the upper 12 inches of profile.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes(c (Circle) (Circle)Wetland Hydrology Present? (Q a Is this Sampling PointHydric Soils Present? 0c No Within a Wetland YesRemarks:" Soil pit located approximately 41" 15.132', 880 08.049' -No 11 A due to close location of othersampling pointsa NOTE: NWVI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92I' £U¶ Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/6/2008Applicant/Owner: Exelon Nuclear -Braidwood Station County Willhivestigator: C. Mays, 1U &ID. Osadjan (8/6) State: IllinoisDo Normal Circumstances exist on the site'? ( No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes (9 Transect ID: 12Is the site area-a potential Problem Area? No(If needed, explain on reverse.)-.._-_ No Plot ID: AVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator1. Elyns veb6. Toxicodendrons Sapllng/ FAC-( virginica s Herb FACUe rydbergii Shrub(Virginia WVild Rye) (Poison Ivy)92. Populus detoides Sapling/ FAC+ 7. Acr negundo L Sbnpling/ FACW-(Cottonwood) Shrub (Box Elder) Shrub3. 8.4. 9.5. _10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 3/4 or 75%Remarks:o FAC-Neutral test= 1 wet species: 1 non-wet species* Dominance of hydrophytic vegetatiou adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No Inundated_ Other No Saturated in Upper 12 InchesNo Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: Non9e (in.) No Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >12 (in.) _ Other (Explain in Remarks)Remarks:* No moist soil observed within upper 12 inches.o Mapped soil type listed on Will County bydric soil list and exhibits a seasonal high water table at thesurface unless drnined during Jan -May. SOILSMap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrnioedField ObservationsTaxonomy (Subgroup): Cumulic Hnplaquoli Confirm Mapped Type: (e NoProfile DescriptionDepth Matrix Color Mottle Colors mottle Texture, Concretions,(bies Horizon (Mmtsell Moist) (Munsell Moist) Abundance/Contrast Structure. ctc.Silty clay loam with0 to 12 A 10 YR 311 roots, dry, friable,clear smoothboundary,1-Tydric Soil Indicators:.Ifistosol __ Concretions-Histic Epipedon -High Organic Content in Surf'ace Layer in Sandy Soils-Sulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime _&Listed on Local .1-fydric Soils List-.Reducing Conditions __ Listed on National Hydric Soils ListXGleyed or Low-Chroma Color _ Other (Explain in Remarks)Remarks:" Noted low-chroma colors throughout soil profile.o Soil profile closely resembled Sawmill. soil series (hydric soil), which is listed on Will CountyIiydrlc soil list. Confirwedmapped soil type.WETLAND DETERMINATIONFHydrophytic Vegetation Present? C No (Circle) (Circle)Wetland Hydrology Present? Yes Is this SaWepling PointHydric Soils Present? De No Withi~n a Wetland Yes (&No)Remarks:" Soil pit located approximately 41" 15.129', 88" 08.044'o NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved hy HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/6/2008Applicant/Owner: Exclon Nuclear- Braidwood Station County WillInvestigator: C. Mays, [II &/D. Osadjun (816) State: IllinoisDo Normal Circumstances exist on the site? kes No Comrununity iD:Is the site significantly disturbed (Atypical Situation)? Yes S Transect ID: 12Is the site area a potential Problem Area? No(If needed, explain on reverse.) No Plot ID: BVEGETATIONDominant Plant Species Stratum Indicator Domina.t Plant Species Stratum IndicatorI. Elymnus virgincus 6. Toxicodendron Sapling/(Virginia Wild Rye) Herb FACU rydbergii Shrub FAC-(Poison Ivy)2. Jerbasina virgiiica Herb FACU- 7 .4cer negundo L Sapling/ FACW-,Whlite erownbenrd) (Box Elder) Shrub3. S. ___4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/4 or 50%Remarks:o FAC-Neutral test = 1 wet species: 2 non-wet species* No dominance of hydrophytic vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:_ Stream, Lake, or Tide Gauge Primary Indicators:-Aerial Photographs No Inmndated_ Other No Saturated in Upper 12 InchesNo Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) No Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >14 (in.) __ Other (Explain in Remarks)Remarks:q No moist soil observed within upper 14 inches.a Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water table at thesurface unless drained cduring Jan -May. SOILSMap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Haplaquoll Confinr Mapped Type: (9 NoProfile DescriptionDepth Matrix Color Mottle Colors Mottle Texture, Concretions,(inches) Horizon (Munsell Moist) (Munsell Moist) Abundance/Contrast Structure etc.Silty clay loam withroots, dry, friable,0 to 14 A 10 YR 311 clear smoothboundary, sibroundedpebbles 1-3 mm din. At6-7 inches below gradeHydric Soil Indicators:lHistosol Concretions-Histic Epipedon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime XListed on Local Hydric Soils List-Reducing Conditions __ Listed on National Hydric Soils List..Gleyed or Low-Chroma Colors -Other (Explain in Remarks)Remarks:" Noted low-chroma colors throughout soil profile.o Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydrlc soil list. Confirmed mapped soil type.VETLAND DETERMINATIONfHydrophytic Vegetation Present? Yes (No (Circle) (Circle)Wetland Hydrology Present? Yes Is this Stunpling PointHydric Soils Present? No Within a Wetland Yes "f oRemarks:* Soil pit located approximately 41' 15.129', 880 08.047'" NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2192 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/6/2008Applicani/Owner: Exelon Nuclear -Braidwood Station County WillInvcstigator: C. Mays, IM &/D. Osndjan (8/6) State: IllinoisDo Normal Circumstances exist on the site? (D No Community ID: -_ IIs tie site significantly disturbed (Atypical Situation)? Yes (Do Transect ID: 13Is thde site area a potential Problem Area? No(If needed, explain un reverse.) No Plot [D: AVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator1. E-Ijnius I'irinicus 6. To.vicodaendrIn Sapling]" Eginmn$Wild Rye) Herb FACU qydbergii Shrub FAC+(Virghin Wild Rye) (Poison Ivy) Shrub2. 7. Popuhds deltoides Sapling/ FAC÷(Cottonwood) Shrub3. 8.4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/3 or 66%Remarks:'* FAC-Neutral test = 0 wet species: I non-wet specieso Dominance of hydrophytdc vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOtdier No Saturated in Upper 12 InchesX No Recorded Data Available No Water MarksNo Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth ot Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) No Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >13 (in.) __ Otler (Explain in Remarks)Remarks:* No moist soil observed within upper 13 inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water table at thesurface unless drained dnrina Jan -May. SOILSMap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Hnplaquoll Confirm Mapped Type: F )NoProfile DescriptionDepth MatrixColor Moltle Colors Motlk Texture, Concrctions,(L e Horizon (Murisell Moist) (Munsell Moist) Abundance/Contrast Structure, etc.Silty clay loam withroots, dry, friable,0 to 13 A 10 YR. 3/1 clear smoothboundary, subroundedpebbles 1-3 mm din. At6-7 inches below gradeHydric Soil Indicators:Histosol ConcretionsHistic Epipedon -High Organic Content in Surface Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy SoilsAquic Moisture Regime X Listed on Local flydric Soils ListReducing Conditions __ Listed on National Hydric Soils ListX Gleyed or Low-Clroma Colors -Other (Explain in Remarks)Remarks:° Noted low-chroma colors throughout soil profile.* Soil profile closely resembled Sawmill soil series (bydric soil), which is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? No (Circle) (Circle)Wetland Hydrology Present? Y es Is this Sampling PointSoils Present? Within a Wetland Yes ('oRemarks:" Soil pit located approximately 41' 15.125', 88' 08.047'" NOTE: NW! Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands Delineation Manual)Project/Site: River Discharge Area Date: 8/612008Applicant/Owner: Exelon Nuclear- Braidwood Station County WillInvestigator: C. Mays, IU &fD. Osadjau (8/6) State: ulinoisDo Normal Circumstances exist on the site? (ýY) No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes (0 Transect ID: 13Is the site area a potential Problem Area?(If needed, explain on reverse.) No Plot LD: BVEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum IndicatorI Eljntis iirginkias Hb6. Toxcodendron SapPiAC-( sVirg~inWild Rye) Herb FACU rydbergii Shrub(Virginia Wild RyIV)2. J'erbesina virginica Herb FACU- 7. Populus deltaides Snpling/ FAC+(White erownbeard) (Cottoywood) Shrub3. 8.4. 9.5. 10.Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 214 or 50%Remarks:* FAC-Neutral test = 0 wet species: 2 non-wet species* No dominance of hydrophytic vegetation ad.[acent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:-Stream, Lake, or Tide Gauge Primary Indicators:_ Aerial Photographs No InundatedOther No Saturated in Upper 12 InchesNo Recorded Data Available No Water Marks5No Drift LinesNKo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: None (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) No_ Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: ?1.3 (in.) _ Other (Explain in Remarks)Remarks:9 No moist soil observed within upper 13 inches.o Mapped soil type listed on Will County hydric soil list and exhibits a seasonal high water table at thesurface unless drained during Jan -May. SOILSS ILSMap Unit Name Drainage(Series and Phase): Sawmill silty clay loam, 0-2% slope (3107A) Class Poorly DrainedField ObservationsTaxonomy (Subgroup): Cttmulic Fnaplaquoll Confirm Mapped Type: ( NoProfile DescriptionDepth Matrix Color Mottle Colors MoLe Texture, Concretions,(inches) orizn (Munsell 10nist) (Munsell Moist) Abundanc/Contrnst Structure. etc.Silty clay loam withroots, dry, friable,0 to 13 A 10 YR 3/1-- clear smoothboundary, subroundedpebbles 1-3 mm din. At6-7 Inches below gradeHydric Soil Indicators:_Histosol ConcretionsHistc Epipedon -High Organic Content in Surface Laycr in Sandy SoilsSulfidic Odor _ Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydric Soils List-.Reducing Conditions __ Listed on National Hydric Soils ListX Gleyed or Low-Chroma Colors -Odter (Explain in Remarks)Remarks:a Noted low-chroma colors throughout soil profile.* Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countyhydric soil list. Confirmed mpped soil type..WETLAND DETERMiNATIONHydrophytic Vegetation Present? Yes 10) (Circle) (Circle)Wetland Hydrology Present? Y (, ) Is this Sampling PointHydric Soils Present? (Ds No Widtin a Wetland YesRemarks:* Soil pit located approximately 41" 15.124', 880 08.048'o NOTE: NWI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetl:nds Delineation Manual)Project/Site: River Discharge Area Date: 8/6/2008Applicant/Owner: Exelon Nuclear- Braidwood Station County WillInvestigalor: C. Mays, ML& D. Osadjan State: IllinoisDo Normal Circumstances exist on tie site? Q No Community [IE:Is the site significantly disturbed (Atypical Situation)? Yes (S) Transect ID:Is the site area a potential Problem Area? -No(If needed, explain on reverse.) Plot ID: DF1VEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Sp~ccies Stratum IndicatorS. Elymus virguiicus Herb FACU 6. Ppui$s detLidos Tree FAC+(Virginia Wild Rye) (Cottonwood)2. Dactylis glamerata L. Herb FACIJ 7.(Orchard Grass)Elephantopus3. carolintianus I'lld. Hlerb FAC- S.(Elephant Foot)4. 9.5. Trewodendron rydbergi, Shrub FAC 10.(Rydberg's poison Ivy)Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/4 or 50%Remarks:, FAC-Neutral test = 0 wet species: 2 non-wet species9 No dominance of hydrophytic vegetation adjacent to soil pit location.HYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:__ Stream, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOlier No Saturated in Upper 12 InchesNo Water MarksX No Recorded Data Available No Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: Non. e (in.) No Oxidized Root Channels in Upper 12N.o Water-Stained LeavesDepth of Free Water in Pit: None (in.) Yes Local Soil Survey DataNo FAC-Neutral TestDepth to Saturated Soil: >14 (in.) _ Other (Explain in Remarks)Remarks: Soil pit location lacks adequate wetland hydrology indicators. SOILSMap Unit Name Sawmill silty clay loam, 0-21%/ slope Drainage Class(Series and Phase): (3107A) Poorly DrainedField ObservationsTaxonomy (Subgroup): CumIulic nlaplaquoll Confirm Mapped Type: ) NoProfile DescriptionDepth Matrix Color Mottle Colors Mottle Texture, Concretions,(inches) Horizon (Munsell Moist) (Munsell Moist) AhundancelConlrast Structure. etc.Silty clay loam, dry0 to 6 Ap 10 YR 311 and friable, few veryfine rootsSilty clay loam, dry6 to 14 Al 10 YR 3/1 and friable, few flueroots, mod medgranular structureHydric Soil Indicators:Histosol __ ConcretionsHistic Epipedon -High Organic Content in Surrace Layer in Sandy SoilsSulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydric Soils ListReducing Conditions _ Listed on National Hydric Soils ListX Gleyed or Low-Chromu Colors Other (Explain in Remarks)Remarks:" Noted low-chronm colors throughout soil profde." Soil profile closely resembled Sawmill soil series (hydric soil), which is listed on Will Countybydric soil list. Confirmed mapped soil type.WETLAND DETERMINATION[ ydrophytic Vegetation Present? Yes W6 (Circle) (Circic)1Welland Hydrology Present? Y Is this Sampling PointHydric Soils Present? 9 s No Within a Wetland YesRemarks:a Soil pit located approximately41° 15.108', 880 08.072' which is to the south of the rip-rap area fordischarge channel to Kankakce River* NOTE: NWI Map indicated forested area with brief periods of flooding during the growing seasou(i.e., potential seasonal wetland)Approved by HQUSACE 2/92 Data FormRoutine Wetland Determination(1987 COE Wetlands DeLineation Manual)Project/Site: River Discharge Area Date: 8/6/2008Applicant/Owner: Exelon Nuclear- Braidwood Stnaton County WillInvestigator C. Mays, Ill & D. Osadjan State: Ilinois "Do Nonmal Circumstances exist on the site? (ne No Community ID:Is the site significantly disturbed (Atypical Situation)? Yes () Transect ID:Is the site area a potential Problem Area? -111 (If needed, explain on reverse.) No Plot ID: DF2VEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum IndicatorToxicodendran1.Elyaus Virgh tiCtRe Herb FACU 6. radicans (neggcundoj Ville FAC+(Virginia Wild Rye) (Eastern Poison Ivy)2. Dac4,lis gloiiwrata L. Herb FACU 7.(Orchard Grass)3. 8.4. 9.Populus deltoides Tree FAC+ 10.(Cottonwood)Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 2/4 or 50%Remarks:* FAC-Neutn'l test = 0 wet species: 2 non-wet speciese No dominance of hydropliylc vegetation adjacent to soil pit location.IrYDROLOGYRecorded Data (Describe in Remarks): Wetland Hydrology Indicators:_ Strean, Lake, or Tide Gauge Primary Indicators:Aerial Photographs No InundatedOheri No Saturated in Upper 12 InchesSOther No Water MarksX No Recorded Data Available No Drift LinesNo Sediment DepositsField Observations: No Drainage Patterns in WetlandsSecondary Indicators (2 or more required):Depth of Surface Water: Non.e (in.) No Oxidized Root Channels in Upper 12No Water-Stained LeavesDepth of Free Water in Pit: None (in.) Yes Local Soil Survey DataNo FAC-Neutral TestDepthl to Saturated Soil: (La.) __ Other (Explain in Remarks)Remarks: Soil pit location lacks adequate wetland hydrology indicators. SOILSMap Unit Name Sawmill silty clay loam, 0-2% slope Drainage Class(Series and Phase): (31_0 7A) Poorly________________ __ ___7__ __ __ __Poorly DrainedField ObservationsTaxonomy (Subgroup): Cumulic Hapinquoll Confirm Mapped Type: 9 NoProfile DescriptionDeppc Matrix Color Menlc Colors Motlul Texture, Concretions,(inches oz (yunsell MoisO (Munsell Moisti Abundance/Contrast Structure, etc.Silty clay loam, dry0 to 6 Ap 10 YR 3/1 and friable, few veryfine rootsSilty clay loam, dry6 to 14 Al 10 YR 3/1 and friable, few fineroots, mod medgranular structureHlydric Soil Indicators:[-listosol __ ConcretionsHistic Epipedon -High Organic Content in Surface Layer in Sandy Soils_Sulfidic Odor -Organic Streaking in Sandy SoilsAquic Moisture Regime = Listed an Local Hydric Soils List__Reducing Conditions _ Listed an National Hydric Soils ListX Gleyed or Low-Chroma Colors -Other (Explain in Remarks)Remarks:a Noted low-chroma colors throughout soil profile.a Soil profile closely resembled Sawmill soil series (hydric soil), which Is listed on Will Countyhydric soil list. Confirmed mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes cJ (Circle) (Circle)Wctland Hydrology Present? Yes Is this Sampling PointHlydric Soils Present? & No Witdin a Wetland YesRemarks:" Soil pit located approximately41 15.123', 88* 08.057' which is to the south of the rip-rap arca fordischarge channel to Kankakee Rivero NOTE: NWVI Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by HQUSACE 2/92-z Data FormRoutine Wetland Determination(1987 COE WeVtands Delineation Manual)Project/Site: River Discharge Area Date: 8/612008Applicant/Owner: Exelon Nuclear- Braidwood Station County WillInvestigator: C. Mays, M & D. Osadjan State: IllinoisDo Nonral Circumstances exist on the site? ( No Comnmunity ID:Is the site significantly disturbed (Atypical Situation)? (YS) No Transect ID:Is the site area a potential Problem Area? No(If needed, explain on reverse.) No Plot LD: DF3VEGETATIONDominant Plant Species Stratum Indicator Dominant Plant Species Stratum Indicator1. Trifolium pratense Herb FACU+ 6.(Red Clover)2. Trifolium repens Herb FACU+ 7.(White Clover) _3. __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 8._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _4. Popuh1s deltoides Tree FAC+ 9.(Cottonwood)5. SaiLr sepulcralis Tree FACW 10.(Weeping Willow)Percent of Dominant Species that are OBL, FACW or FAC(excluding FAC-). 1/3 or33%Remarks:* Mowed vegetation making identification of dominant herbal plant species In the Immediate location ofthe soil pit difficult due to disturbedl vegetative conditions.HYDROLOGYRecorded Data (Describe in Remarks):Stream, Lake, or Tide GaugeAerial PhotographsOtherX No Recorded Data AvailableField Observations:Wetland Hydrology Indicators:Primary Indicators:No InundatedNo Saturated in Upper 12 InchesNo Water MarksNo- Drift LinesNo- Sediment DepositsNo Drainage Patterns in WetlandsSecondary Indicators (2 or more required):No Oxidized Root Channels in Upper 12No' Water-Stained LeavesYes Local Soil Survey DataNo FAC-Neutral Test-Other (Explain in Remarks)Dcpth of Surface Water:Depth or Free Water in Pit:Depth to Saturated Soil:None (in.)None (in.)>4 (in.)Remarks: Soil pit location lacks adequate wetland hydrology indicators.II.J SOILSMap Unit Ndame Sawmill silty clay loam, 0-2% slope Drainage Class(Series and Phase): Poorly DrainedField ObservationsTaxonomy (Subgroup): Curnulic HaplaquolU Confirm Mapped Type: Yes (Profile DescriptionDepth Matrix Color Mottle Colors Mottle Texture, Concretions,(inches) Horizon (Munsell Moist) tlmunsell Moistl Abundnnce/Contra.t Structure. etc,A 10 YR 311 None None Silty clay loam, dry0to 2 Ap 0R3Neoeand friable2 to 4 Limestone gravel for:2ot: parldngp lotsHydric Soil Indicators:Histosol _ Concretions_ Histic Epipedon -High Organic Content in Surface Layer in Sandy Soils_Sulfidic Odor -Organic Streaking in Sandy Soils-Aquic Moisture Regime X Listed on Local Hydric Soils List-Reducing Conditions __ Listed on National Hydric Soils List_Gleyed or Low-Chronia Colors -Other (Explain in Remarks)Remarks:Potential fill material located at 2 to 4 inches and got refusal.* Does not resemble mapped soil type.WETLAND DETERMINATIONHydrophytic Vegetation Present? Yes (N. (Circle) (Circle)Wetland Hydrology Present? Yes Is this Sampling PointHydric Soils Present? Yes Within a Wetland YesRemarks:o Soil pit located approximately4l1 15.108', 880 08.072'" Noted potentially disturbed or altered vegetation and soil. Due to the lack of a dominance ofhydrophytie vegetation near the soil pit location and (lie lack of adequate wetland hydrologycharacteristics, MPE lists the soil pit as being outside or the approximate wetland boundary." NOTE: NIVJ Map indicated forested area with brief periods of flooding during the growing season(i.e., potential seasonal wetland)Approved by H-IQUSACE 2/92I Attachment ISelect Wetland Delineation Photographs ftf.*?- .. 4* .to :., ...-I ' r .....' ;-" .. .= .. '., .- , .4... -, .* , ..*. ., .. .-v * -, ." .*+ .." : r- j .'- .'". : -.* ..-. .,.. ., ..-- -:..4. * " .. ..,. l -" ' ..... .ll" ;".. t?. *<,l .'I .* "4.-+ ' .*' .: .j .* ' ' ....* ..+ ..... 4 > .; -1 '.. ..,,, " , .--40 ' .* :-.- * , ., .'..,' ...+ " ,.'o -". ..:i<-.+. * .* " :;. ,+* -" " " " ... -" "' " ..""- 'P " " " ":" '1 ;, ... .b' " " '" ' ,O2 % 4 .. .'4+, -: +. -, .Y ...4: : ; , ..,zFacing northeast looking towards delineation points 1A & 1B >- PORQaFIy RGIAIDelineation point 1A -soil and vegetation.1 POrRFQULITYOORGINALJ*rf A .<tit it -..4 ~ 4lit;.. .-Ileiz4t1P ( -I*:. ~ 'i; 9 ~ A1M~2's OV,.4 ,, ,.slit t'S .i-4.. DoI. 1)kv d. r1/4\' p CJ.~(LA.?c4~C4Vt~tb- Soa .i-POOR QUALITY ORIGINAL* II. ,4a ..- or. .6 ..14 t!T C". -17. .-."4 .~m...,...U-WA-'IJ2 F.-3..~"00PO9-0;0G)zrn-II--Looking towards delineation point 9A 4'---r- Tu~,vJ-1 i7l24 t~Iz--'Op Vt-i ~ -*-.-. -*. --C ~ 3WLV -0C>r--I-4I-40x>r'Facing north-northwest showing delineation point 10A- problem area due to buried rip-rapI- .. - ~~4.A .0Facing north-northeast showving delineation points 128 (forgon)lBad9A(akoud ci4-Xgoz3>Showing delineation point DF2 -..rAi ;4-4lilt.' ..? .44~-. -. %- ~ -I*Yr L '0t: y~ jk --7 72 -.Facing North-northeast looking towards delineation point DF3 01li4-er-geAt~A7-44 .On3%.Facig aproxmatly ast howng elinatin pont F3 atyica/prblemare dueto ld rave lo (7.To Section 4 SESC Plan (titled Environmental ManagementPlan) Section 4Environmental Management Plan -Pollution Prevention for the 2009Braidwood Intake Dredging ProjectPrepared by:Braidwood Nuclear StationFebruary 2, 2009
References:
EN-AA- 103 (Environmental Review Checklist) Att. IEN -AA -103- 1000 (Environmental Evaluation) Att. I & 2Department of the Army Authorization to Soil BoreU.S. Army Corps of Engineers " Terms And Conditions"
- 1. IntroductionThe purpose of the Environmental Management Plan is to have in place a pollution preventionplan, to control and maintain fluids necessary to perform the work, and to prevent spills / leaksand the amount of pollutants that may be introduced to the "Wetlands".1.1 Potential impacts to the environment" Potential to release chemicals (e.g., gas, oil, hydraulic fluids, anti-freeze, etc.) to theenvironment / waterways." Disturbing land that would change site storm water runoff and increase the sedimentloading of storm water runoff.This Plan must be kept on the work site throughout the dredging process.2. Components of the PlanAll required surveys, studies, and permit applications have been completed and are in place. Allcompensatory measures and mitigating actions for the work activity are identified. The workrequires preliminary clearing of vegetation and soil for the dewatering area. It also requirespotentially laying down road materials to allow equipment access between the river anddewatering area. Receiving shipment of the dredging equipment and construction of thedewatering area is also included. The plan contains a description of the site and control measuresto prevent or minimize any environmental impacts to the Kankakee River.2.1 Intake Site and Dewatering AreaThe access road is on Exelon property off of State highway Rte. 113 and between the RiverScreen House and the Circulating Water Blow Down Canal. The dewatering area construction(pre-existing dredge dewatering area) involves clearing of vegetation and some regrading.3. Measures and ControlsAny spills or leaks from machinery or stored fuels and chemicals in the vicinity of waterwaysmay result in downstream pollution. Any equipment chemicals/fuels will be stored appropriatelyand in accordance with EPA guidelines (e.g. Bunding).The sides of the dewatering area will be earth-bermed with sides 2 ft. high. The berms shall beconstructed in such a way to minimize seepage through the walls. The sediments will remainwithin the bermed area of the intermediate pond until dried at which time it will be removed andtransported to an upland storage area on the Braidwood Station property.Page I of 2 Existing slopes at the River Screen House will be re-rocked to minimize erosion and theroadways may be improved to facilitate easy access to the river by the dredging equipment.At the perimeter of the clearing and before construction, silt screening shall be installed. TheContractor shall have a recovery plan in place prior to operating equipment for this project. Incase of a spill, the Contractor shall have materials stored at the Job Site to soak up spills. Theequipment will be inspected prior to use and any defects corrected before use.A floating berm will surround the dredging area during operation to minimize the potential forany materials floating on the surface to leave the area.4. Inspection / MaintenancePersonnel from Exelon and/or its contractor, including the Independent Soil Erosion andSediment Control (SESC) Inspector (ISI) will be on hand to witness the inspections andcorrective actions as required, for the duration of the dredging work.5. Records of Dredging ActivitiesA construction log shall be utilized and maintained to document dredging activities. Theconstruction log shall document major activities such as dredged material removal, vegetationclearing, grading and construction of the temporary roadway, if necessary. Any environmentalincidents and corrective action would be documented.6. TerminationThe terms of the Plan and Construction Log shall be met until all construction activity iscomplete, the equipment is out of the water, the work site demobilized of all equipment, and alldisturbed soils have been stabilized and returned to green.Page 2 of 2 Section 5 -United States Fish and Wildlife Service Letter United States Department of the InteriorFISH AND WILDLIFE SERVICEChicago Ecological Services Field Office1250 South Grove Avenue, Suite 103Barrington. Illinois 60010Phone: (847) 381-2253 Fax: (847) 381-2285IN REPLY REFER TO:FWS/AES-CIFO/8-FA.0590 / SL-0498August 20, 2008Mr. Joseph J. Macak 11Mostardi Platt Environmental1520 Kensington Road, Suite 204Oak Brook, Illinois 60523-2139
Dear Mr. Macak:
This responds to your letter e-mail dated August 5, 2008 requesting information on endangeredor threatefied species for the proposed Braidwood discharge into the Kankakee River located atT32N, R9E, Section 13 in Will County, Illinois.In the future, please reference the site location using GPS coordinates in decimal degrees as wellas Township, Range, and Section number as this will expedite the process.The proposed project lies with the range of the freshwater sheepnose mussel (Plet/iobasuscyphlyus) that is declining throughout its national range and is currently a federal candidatespecies. Although candidate species do not receive Federal protection, we recommendconsidering their conservation now to help retain flexibility should the species be listed andreceive protection under the Endangered Specics Act. This species is known to occur in WillCounty. Threats to this species include habitat loss and degradation; many remainingpopulations are small and isolated. Your proactive efforts to conserve this species now may helpavoid the need to list the species under the Endangered Species Act in the future. We encourageearly project coordination to avoid potential impacts to this mussel and/or its habitat.The sheepnose mussel is primarily a larger-stream species occurring mainly in shallow shoalhabitats with moderate to swift currents over coarse sand and gravel. Habitat can include mud,cobble, and boulders as well. Habitat also includes larger rivers with deep runs, while thosespecimens found in streams occur mainly in stable flow refuges with little sediment turbidity.Project evaluations would detennine whether sheepnose mussel habitat occurs within theproposed project boundaries, and whether the habitat is occupied by this mussel. Mr. Joseph J. Macak 112Based on the information provided in your submittal and a review of our records, we do notbelieve that any federally endangered or threatened species occur in the vicinity of the site. Thisconclusion is based on the best available information, including information in your submittal,the scientific and technical literature and our own files. Newer information based on updatedsurveys, changes in the abundance and distribution of listed species, changed habitat conditions,or other factors could change the conclusion. This could become more likely if projectsexperience significant delays in implementation. Feel free to contact us if you need more currentinformation or assistance regarding the potential presence of federally listed species.These comments only address federally listed species. Please contact the Illinois Department ofNatural Resources for information on State-listed species. Also, we may have the opportunity toreview the project for a broader range of fish and wildlife impacts if it requires a Section 404permit. We are willing to work with you in advance of fornal submittal if it would helpstreamline the approval process.If you have any questions, please contact Ms. Cathy Pollack at 847/381-2253 ext.20, orMs. Karla Kramer at 847/381-2253 ext. 12.Sincerely,'0 D. RognerF Supervisor DEPARTMENT OF THE ARMYCHICAGO DISTRICT CORS OF ENIERS, NON-EXELO N111 NORTH CANAL STREETCHICAGO, ILUNOIS 60108.720*REPR.Y TOATTE1 OP. JUN 11 2009Technical Services DivisionRegulatory BranchLRC-2009-00071
SUBJECT:
. Proposed Dredging of River Inlet to the Inlet Forebay of ihe Braidwood GeneratingStation's River Screen House on the Kankakee River, Will County, ILLawrence CoyleExelon CorporationBraidwood Nuclear Generating System35100 S..Rte, 53 Suite 84Bracevilfe, Illinois 60407
Dear Mr. Coyle:
The U.S. Army Corps of Engineers has authorized the above-referenced project underprovisions of Section 10 of the Rivers and Harbors Act of 1899. You are hereby authorized bythe Secretary of the Army to proceed with your proposed activity.This determination covers only your project as described in your notification and. asshown on information submitted to our office. If the design, location, or purpose of the project ischanged, you should contact this office to determine the need for further authorization. Enclosedis your copy of the executed permit which becomes effective on the date of this letter.Please note that this letter does not obviate the need to obtain other Federal, state or localauthorizations required by law. Once you have completed the authorized activity, please signand return the enclosed compliance certification. If you have any questions, please contact KateM. Bliss of my staff-by telephone at 312-846-5542, or email at Kate.M.Bliss{usace.army.miL.Sincerely,Keith L.WozniakChief; West SectionRegulatory BranchEnclosures. DEPARTMENT OF THE ARMY5 Letter of Permission No.. LRC-2009-0071Permittee Exelon Nuclear, Braidwood Generating Station, Lawrence Coyle,Plant ManagerApplication No.- LRC-2009-00071Issuing Office: CHICAGO DISTRICTI U.S. ARMY CORPS OF ENGINEERSDEFINITIONS: The term "you" and its derivatives, as used in this permit, means the permitteeor any future transferee. The term "this office" refers to the appropriate district or division officeof the Corps of Engineers having jurisdiction over the permitted activity or the appropriateofficial of that office acting under the authority of the commanding officer.You are authorized to perform the work in accordance with the terms and conditions specifiedbelow.Project.Description: Proposed Dredging of River Inlet to the Inlet Forebay of the BraidwoodGenerating Station", River Screen House on the Kanakee River, as &scribed in your notificationand is shown on permit application dated February 5, 2009, as prepared by Mostardi PlattEnvironmental. The project includes approximately 1,000 cubic yards of dredged sedimentremovaLProject Location: In the Kankakee River, Will County, IL, Section 13, T 32 N, Range 9E.Permit Conditions:General Conditions1. The~time limit for completing the work authorized ends on June 1, 2011. If you find thatyou need more time to complete the authorized activity, submit your request for a timeextension to this office for considerstion at least one month before the above date isreached.2. You must maintain the activity authorized by this permit in good. condition and inconformance with the terms and conditions of this permit. You are not relieved of thisrequirement if you abandon the permitted activity, although you may'make a good faithtransfer to a third party in compliance. with General Condition A below. Should you wishto cease to maintain, the authorized activity orshould you desire to abandon it without agood faith transfer, you must obtain a modification of this permit from this office, whichmay require restoration ofthe area.0 2O 3. If you discover any previously unknown historic or archeological remains whileaccomplishing the activity authorized by this permit, you must immediately notify thisoffice of what you have found. We will initiate the Federal and state coordinationrequired to determine if the remains warrant a recovery effort or if the site is eligible forlisting in the National Register of Historic Places.4. If you sell the property associated with this permit, you must notify this office in writing,providing the name, address and telephone number of the new owner.5. Ifa conditioned water quality certification has been.issued for your project, you mustcomply with the conditions specified in the certification as special conditions to thispermit For your convenience, a copy ofthe certification is attached if it contgins suchconditions.6. You must allow representatives from this office to inspect the authorized activity at anytime deemed necessary to ensure that it is being or has been accomplished in accordancewith the terms and conditions of your permitSpecial ConditionsI. The permittee understands and agrees that, if future operations by the United Statesrequire removal, relocation, or other. alteation.of the structure or work authorized herein,or i& in the opinion of the- Secretary of the Army or his authorized representative saidstructure or work shall cause unreasonable obstruction to the free navigation of thenavigable water, the permittee will be required, upon due notice from the Corps ofEngineers, to remove, relocate, or alter the structural work or obstructions causedthereby, without expense to the United States. No claim shalt be made against the UnitedStates on account of any such removal or alteration.2. Within 45 days before the start of the project, the permittee. shall conduct a freshwatermussel survey of the area affected.by the dredging and relocate any mussels found withinthe project vicinity to an upstream location. Within 60 days of the movement of mussels,the permittee shall provide a list of the species discovered to the IDNR.3. This authorization is contingent upon implementing and maintaining the Corps approvedsoil erosion and sediment control measures in a serviceable condition throughout theduration of the project4. As part of the soil erosion and sediment control (SESC) process, you are required toretain a qualified Independent SESC Inspector (ISI) to review the project's SESC plansand provide a detailed narrative that explains the measures to be implemented at theproject site. The !SI is also required to perfbrn site 'inspections of the implementedSESC measures to ensure proper installation and regular maintenance of the approvedmethods.
- 35. Throughout the duration of the project you shall comply with the project's soil erosionand sedimentcontrol (SESC) plans and the installation and maintenance requirements ofthe SESC practices on-site. You shall notify this office any changes or modifications tothe approved plan set. Please be aware that field conditions during project constructionmay require the implementation of additional SESC measures for further protection ofaquatic resources. If you fail to implement corrective measures, this office may requiremore frequent site inspections to ensure the installed SESC measures are acceptable.6. You shall retain a qualified SESC inspector to perform periodic inspections of theimplemented SESC measures to ensfre proper installation and regular maintenance of theapproved methods. The contact information forthe.Independent SESC Inspector (ISI)shall be. submitted to this office via e-mail and/or hard copy prior-to the Corps counter-signature on the permit and prior to commencement of the permitted work.7. Provide prior notification to a, representative of this office and to the designatedIndependent SESC kspeom of the pre-construction meeting at least 10 calendar days inadvance. The meeting shall be held to review the Corps approved SESC plans and ifapplicable,, to discuss any necessary changes as required.8. The SESC inspector shall submit digital photographs of-the SESC measures to the Cbrpson a weekly basis during the active and non-active phases of construction that representthe existing conditions of'the site. Photographs shall be submitted at the completion ofthe project once the SESC measures have been removed and the area has been restored, topre-constmuctio conditions.9. You shall contact this office immediately in the event of non-compliance and/or failureand inadequacy of an existing SESC method. Upon direction of the Corps, correctivemeasure shall be instituted at the site to correct the problem along with additional SESCmeasures which may be needed to ensure further protection of the resource and/or torestore the impacted jurisdictional area(s).10. You shall provide written notification to this office-at least ten (10) days prior to thecommencement of work indicating the start date and estimated end date of construction.11. You are responsible for all work authorized herein and for ensuring, that all contractorsare aware of the teums and conditions of this authorization. A copy of this authorizationmust be present at the project site during all phases of construction.12. You shall notify this office of any proposed modifications to the project, includingrevisions to any of the plans or documents cited in this authorization. You must receiveapproval from this office before work affected by the proposed modification isperformed.13. You shall notify this office prior-to the transfer of thi& authorization and liabilitiesassociated with compliance with ita terms and conditions. Thetansferee must-sign theauthorization in the space provided and forward a copy of the authorization to this office.
4Further Information1. Congressional Authorities: You have been authorized to undertake the activity describedabove pursuant to Section 10 of the Rivers and Harbors Act of 1899 (33 U.S.C 403).2. Limits of this authorization.a. This permit does not obviate the need to obtain other Federal, state, or local authorizationsrequired by law.b. This permit does not grant-any property rights or exclusive privilege&e. This permit does not~authorize any injuy to the property or rights of others.d. This permit does not authorize interference with any existing or proposed Federal project.3. Limits of Federal Liability. In issuing this permit, the Federal Government does not assumeany liability for the following:a4 Damageo to the permitted project or uses thereof as a result of other permitted orunpermitted activities or from natural causes,b. Damags to the permitted project or uses thereof as aresult of current or future aqtivitiesundertaken by or on behalf of the United States in the public interest.c. Damages to persons, property, or to other permitted or unpermitted activities or structurescaused by the activity authorized by this permit.d. Design or construction deficiencies associated with the permitted work.e. Damage claims associated with any future modification, suspension, or revocation of thispermit4. Reliance on Applicant's Data: The determination of'this office that issuance of this permit isnot contrary to the public interest was made in reliance on the infbrmation you provided.5. Reevaluation of Permit Decision, This office may reevaluate its decision on this permit atany time the circumstances warrant. Circumstances that could require a reevaluation include, butare not limited to, the following-a. You fail to comply with the terms and conditions of this permitb. The information provided by you in support of your permit application proves to havebeen false, incomplete, or inaccurate. (See 4 above).. 5W c. Significant new information surfaces which this office did not consider ini reaching theoriginal public interest decision.Such a reevaluation may result in a determination that it is appropriate to use the suspension,modification, and revocation procedures contained in 33 CFR 325.7 or enforpement proceduressuch as tUose contained in 33 CFR 326.4 and 326.5. The-referenced enforcement proceduresprovide for the issuance of an administrative order requiring you to comply with the terms andconditions of your permit and for the initiationof legal action where appropriate. You will berequired to payfor any corrective measures ordered by this office, and if you fail to comply withsuch directive, this office may in certain situations (such as those specified in 33 CFR.209.170)accomplish the corrective measures by contract of otherwise and bill you for the cost.6. Extensions. General condition I establishes a time limit for the completion of the activityauthorized by this permit Unless there are circunmstances requiring either a prompt completionof the authorized activity or a reevaluation of the public interest decision, the Corps willnormally give favorable consideration toa request for an extension of this time limit.0 6Your signature below, as permittee, indicates that you accept and agree to comply with the termsand conditions of this authorization.DATEExelon Nuclear, Braidwoo Gen ting Station,.Lawrence Coyle, Plant. ManagerThis authorization becomes e ctive when the Federal official, designated to act for theSecretary of the Army, has signed below.Vincent V. QuarlesColonel, U.S. ArmyDistrict Commander6'- #~ODATEWhen the structures or work authorized by this authorization are still in existence at the time theproperty,is transfrred, the terms and conditions of this authorization will continue to be bindingon the new owner(s) of the property. To validate the transfer of this authorization and theassociated liabilities associatedwith compliance with its terms and conditions, have thetransferee sign and date below.TRANSFEREEDATEADDRESSTELEPHONE Summary of CY-BR-120-4130 Revision 4BRAIDWOOD LAKE MACROBIOLOGICAL STRATEGIC PLANThe overall purpose of the Braidwood Lake Macrobiological Strategic Plan is to establisha program for monitoring and documenting biological conditions in the cooling pond, andto identify early intervention and/or mitigative actions that could deter a significant impacton operation of the plant.Macrobiological challenges at Braidwood cooling pond fall into the following four generalcategories:* Bryozoan deposition and growth* Fish kills" Aquatic plant growth* Biofouling by shellfish (mussels and clams)The following paragraphs summarize the provisions in the Braidwood LakeMacrobiological Strategic Plan that apply to each specific potential macrobiologicalfoulant.BryozoansBryozoans comprise a species of animal (name means "moss animal") that can growrapidly throughout the summer months to form large, interwoven mats, which appear tobe made of plant-like material and can clog water intake structures.At Braidwood, a vendor monitors the growth rate of bryozoans, and an effort has beenmade to integrate historical and current data to provide a computerized early warningtool. This has been difficult, however. Accordingly, divers inspect for and physicallyremove bryozoan colonies from the Lake Screen House forebays once per year.Inspection and cleaning methodologies are changed as needed based on lessonslearned.Fish LossSudden, large fish kills in the cooling pond can be caused by oxygen deficiency, toxicalgae blooms, or disease triggered by such stresses as abrupt temperature changesfollowing shutdown or start-up of both units. When they occur, fish kills may result in somuch accumulating biomass that the screens or pump strainers at the lake screen housebecome overwhelmed.Monitoring and inspections are used to identify conditions that may result in a fish kill,and to provide baseline data on natural fish mortality in the cooling pond to serve as abasis for evaluating the magnitude of fish kills.If the monitoring indicates that dissolved oxygen is less than 3 mg/L (ppm) in the coolingpond and a large fish population exists, particularly if the weather forecast includes anextended period of cloudy weather, proactive mitigation is considered to protect thetraveling screens. If proactive mitigation is deemed necessary, a net crew is put onstandby to deploy a barrier net in the general vicinity of the intake at the first sign of afish die-off in the cooling pond. Coincidentally, the traveling screens would be set toautomatically begin rotating at the fast speed when the pressure differential across the1 of 2 traveling screens reaches a specified procedural limit. The traveling screens wouldcontinue to rotate until the die-off event has ended or the pressure differential hasreturned to an acceptable procedural goal. Once a barrier net has been deployed in thevicinity of the intake, fish accumulating on the upstream side of the net must be removedto prevent the net from failing. At the end of the event, the barrier net would be removedfrom the cooling pond, cleaned, and stored for the next event.To provide warning of possible fish kills from toxic algae blooms, a vendor inventoriesphytoplankton in the cooling pond every month from March through October to check fora bloom of toxic cyanobacteria, or blue-green algae.Aquatic PlantsFloating plants or rooted plants that become dislodged can be transported to the coolingwater intake structure by normal flow patterns. Typically, such plants are picked up bythe traveling screens and removed. However, it is possible for the volume of aquaticplant life to be large enough to exceed the removal capability of the traveling.Traveling screen differential pressure is monitored by operations personnel as a firstindicator that aquatic plants are building up on the traveling screens at the lake screenhouse. In addition, traveling screen differential pressure has an alarm in the ControlRoom. Other factors that are considered potential indicators for concern are volume ofplant life removed from traveling screens, frequency of traveling screen backwashing,and the species-specific potential for explosive population growth.A vendor inspects and inventories aquatic plants in the cooling pond twice each year. Ifthere is any cause for concern, the weed population is controlled or eliminated in anappropriate way.Mussels and Clams -Zebra mussels (Dreissnia polymorpha), Quagga mussels(Dreissnia rostrifornis bugensis), and Asiatic clams (Corbicula fluminea) are invasivespecies that can block intake structures, block heat exchanger tubesheets, and plugpiping.Continuous chlorination is used to prevent Asiatic clams in the piping of certain watersystems. Clam/mussel growth in the forebays of the lake screen house is mitigated byannual physical cleaning of the floors and walls. In addition, a vendor performs monthlysampling for the presence of zebra mussels in the cooling pond, and regular inspectionsof the lake screen house forebays are conducted. If invasive mussels are detected inthe forebays, intervention methods, such as mechanical or chemical cleaning, may beimplemented.2 of 2
Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: AQ-6 Category: Aquatic EcologyStatement of Question:Exelon has conducted biological monitoring in the Kankakee River for over 20 years.Please provide tables that describe the number of fish caught by species at eachmonitoring location and by sampling gear for each year that monitoring has occurred.For 2012 monitoring information, provide Tables 3-3 and 3-4 from the HDR Engineeringreport.Additionally, provide the following references:(a) EA Science and Technology (EA). 1990. Results of entrainment andimpingement studies conducted at the Braidwood Nuclear Station and theadjacent Kankakee River.(b) EA Science and Technology (EA). 1991. Results of a three monthimpingement study at the Braidwood Nuclear Station, April through June 1991.(c) Larimore RW, Peterson JT. 1989. Kankakee River Fishes of the BraidwoodStation Aquatic Monitoring Area, August 1988. Illinois Natural History SurveyAquatic Biology Technical Report. January 1989.(d) HDR Engineering, Inc. (HDR). 2013. Braidwood Station Kankakee River FishMonitoring Program, 2012.Response:The requested references are attached.In the attached document titled "Braidwood Station Kankakee River Fish MonitoringProgram 1991-2013 Tables Requested by the NRC," tables are provided containingthe total number, by species, of fish caught using electrofishing and seining for eachyear from 1991 through 2013. Also, in the same document, tables are providedcontaining the number, by species, of fish caught using electrofishing at each monitoringlocation from 1991 through 2013.List Attachments Provided:1) EA Science and Technology (EA). 1990. Results of entrainment andimpingement studies conducted at the Braidwood Nuclear Station and theadjacent Kankakee River.2) EA Science and Technology (EA). 1991. Results of a three monthimpingement study at the Braidwood Nuclear Station, April through June 1991.July 1991.3) Larimore, R.W. and Peterson, J.T. 1989. Kankakee River Fishes of theBraidwood Station Aquatic Monitoring Area, August 1988. Illinois NaturalHistory Survey Aquatic Biology Technical Report. January 1989.1 of 2
- 4) HDR Engineering, Inc. (HDR). 2013. Braidwood Station Kankakee River FishMonitoring Program, 2012. February 2013.5) HDR Engineering, Inc. (HDR). 2014. Braidwood Station Kankakee River FishMonitoring Program, 1991-2013 Tables Requested by the NRC. January2014.2 of 2 Commonwealth EdisonOne First National Plaza, Chicago. IllinoisAddress Reply to: Post Office Box 767Chicago, Illinois 60690September 13, 1973Mr. J. F. O'Leary, DirectorDirectorate of LicensingRegulationU.S. Atomic Energy CommissionWashington, D.C. 20545
Subject:
Submission of the Braidwood EnvironmentalReport, Project No. 477
Dear Mr. O'Leary:
Pursuant to Mr. Giambusso's letter of August 30, 1973,200 copies of the Braidwood Environmental Report are attached insupport of the Byron/Braidwood application. Several minorcorrections to the report have been included and have beendiscussed with your staff.Due to the fact that the Byron Environmental Reportsare being printed and assembled at another location, theByron-reports are being submitted under separate cover.Very truly ours,B r.Lee,JrVice-President BRAIDWOODSTATIONENVIRONMENTAL REPORTVOLUME "nCOMMONWEALTH EDISON COMPANY CONTENTSVolume II3.0 THE PLANT3.1 External Appearance3.1.1 Structures3.1.2 Arrangement of Structures3.1.3 Architectural Features and AestheticConsiderations3.1.4 Release Points3.2 Reactor and Steam-Electric System3.2.1 System Description3.2.2 Fuel Description3.2.3 Power Output3.3 Plant Water Use3.3.1 General3.3.2 Cooling Water System3.3.3 Service Water Usage3.3.4 Sanitary Water System3.3.5 Makeup Demineralizer System3.3.6 Seepage3.4 Heat Dissipation System3.5 Radwaste Systems3.5.1 General3.5.2 Liquid Radwaste Description3.5.2.1 Radioactive Waste Drains Subsystem3.5.2.2 Steam Generator Blowdown Subsystem3.5.2.3 Laundry Waste Subsystem3.5.2.4 Liquid Radwaste Discharges3.5.3 Solid Radwaste System3.5.4 Gaseous Radwaste Description \3.5.4.1 General3.5.4.2 Gaseous Waste Sources3.5.4.3 System Description3.5.4.4 Gaseous Waste DischargePage3.1-13.1-13.1-13.1-23.1-23.2-13.2-13.2-23.2-23.3-13.3-13.3-23.3-33.3-43.3-43.3-43.4-13.5-13.5-13.5-13.5-13.5-33.5-33.5-43.5-53.5-73.5-73.5-83.5483.5-11M.R.27/73viii Supplement 2CONTENTSPage3.6 Chemical and Biocide Systems 3.6-13.6.1 General 3.6-13.6.2 Cooling Water System 3.6-13.6.2.1 Circulating Water 3.6-13.6.2.2 Non-Essential Service Water System 3.6-33.6.2.3 Essential Service Water System 3.6-3 23.6.3 Makeup Water Treatment System 3.6-3A3.6.4 Potable and Sanitary Water System 3.6-3B3.7 Sanitary and Other Waste Systems 3.7-13.7.1 Sanitary Wastes 3.7-13.7.2 Other Waste Systems 3.7-13.8 Radioactive Materials Inventory 3.8-13.8.1 Cold Fuel Elements 3.8-13.8.2 Irradiated Fuel Elements 3.8-13.8.3 Radioactive Waste Material 3.8-23.9 Transmission Facilities 3.9-13.9.1 Location and Description of Rights-of-Way 3.9-13.9.1.1 Braidwood Station to the Existing 3.9-1Joliet Generating Station3.9.1.2 Braidwood Station to the Existing 3.g-2Crete Transmission Substation3.9.2 New Substations Off Site 3.9-33.9.3 Existing Substations Affected 3.9-33.9.3.1 Crete Transmission Substation 3.9-33.9.3.2 Joliet Generating Station Substation 3.9-3Facilities3.9.4 Radiated Electrical and Acoustical Noise 3.9-43.9.5 Induced or Conducted Ground Currents 3.9-43.9.6 Ozone Production 3.9-43.9.7 Environmental Impact 3.9-6ix M.R.27/731/74 Supplement 4CONTENTS4.0 ENV[RONMENTAL EFFECTS (iF SITE PREPARATION, PLANT ANDTRANSMISSION LINE CONSTRUCTION4.1 Site Preparation and Plant Construction4.1.1 Schedule4.1.2 Plant Construction4.1.3 Pipeline Construction4.1.4 Dike Construction4.1.5 Effects of Lake Construction4.1.5.1 Flora4.1.5.2 Wildlife4.1.6 Miscellaneous Effects4.1.7 Impact on Human Habitat4.1.8 Mitigation or Reversal Measures4.1.9 Possible Beneficial Consequences4.2 Transmission Facilities Construction4.2.1 Total Length of New Lines4.2.2 Access Roads4.2.3 Clearing Methods4.2.4 Installation Procedures4.2.5 Consideration of Erosion Problems4.2.6 Effects on Agricultural Productivity4.2.7 Plans for Wildlife Protection4.2.8 Plans for Disposal of Debris4.2.9 Restoration Plans4.2.10 Environmental Impact4.3 Resources Committed4.3.1 Site Construction4.3.2 Transmission Line Construction4.3.3 Water Resources4.3.4 Mineral ResourcesxPage4.1-14.1-14.1 -14.1-14.1 -lE4.1 -IG4.1-3A4.1-3B4.1-54.1-64.1-74.1-84.1-94.2-14.2-14.2-14.2-14.2-24.2-24.2-24.2-24.2-34.2-34.2-34.3-14.3-14.3-24.3-34.3-3M.R.27/736/74 CONTENTSPage5.0 ENVIRONMENTAL EFFECTS OF PLANT OPERATION 5.1-15.1 Effects of Operation of the Heat Dissipation System 5.1-15.1.1 River Temperature Predictions 5.1-15.1.2 Illinois Thermal Standards 5.1-25.1.2.1 Rules Applicable to the Kankakee 5.1-2River5.1.2.2 Mixing Zones 5.1-45.1.2.3 Acceptance of Standards by EPA 5.1-55.1.2.4 Evaluation of Compliance with 5.1-6Thermal Standards5.1.3 Effects of Heated Plume on Aquatic Life in 5.1-8the Kankakee River5.1.3.1 Fish 5.1-95.1.3.2 Benthos 5.1-135.1.3.3 Phytoplankton 5.1-145.1.3.4 Periphyton 5.1-155.1.3.5 Zooplankton 5.1-155.1.3.6 Macrophytes 5.1-165.1.4 Effect on Thermal Effluent on Aquatic Life 5.1-16in Braidwood Lake5.1.4.1 Before Plant Operation 5.1-165.1.4.2 After Plant Operation 5.1-175.1.5 Plant Shutdown 5.1-235.1.6 Effects of River Intake and Discharge 5.1-23Structures5.1.6.1 Intake Screen Fish Mortality 5.1-245.1.6.2 Scour 5.1-245.1.6.3 Natural Circulation of the River 5.1-255.1.7 Terrestrial Impact of Braidwood Lake 5.1-255.1.8 Cooling LakeEnvironmental Impact 5.1-265.2 Radiological Impact on Biota Other Than Man 5.2-15.2.1 Exposure Pathways 5.2-15.2.1.1 Aquatic Releases 5.2-15.2.1.2 Atmospheric Releases 5.2-2xi M.R.27/73 CONTENTSPage5.2.2 Radioactivity in Environment5.2.2.1 Aquatic Releases5.2.2.2 Atmospheric Releases5.2.3 Dose Rate Estimates5.3 Radiological Impact on Man5.3.1 Exposure Pathways5.3.1.1 Aquatic Pathways5.3.1.2 Atmospheric Pathways5.3.2 Liquid Effluents and Associated Doses5.3.3 Atmospheric Effluents and Associated Doses5.3.4 Direct Radiation5.3.4.1 Radiation from Facility5.3.4.2 Transportation of Radioactive Material5.3.5 Summary of Annual Radiation Doses5.4 Effects of Chemical and Biocide Discharges5.4.1 Cooling Water System5.4.2 The Makeup Water System5.4.3 Potable and Sanitary Water System5.4.4 Compliance With Standards5.5 Effects of Sanitary and Other Waste Discharges5.5.1 Sanitary Wastes5.5.2 Non-Radioactive Gaseous or Smoke Wastes5.5.3 Trash and Miscellaneous Solid Wastes5.6 Effects of Operation and Maintenance of TransmissionSystems5.6.1 Maintenance of Transmission Right-Of-Way5.6.2 Periodic Transmission Line Inspection Programs5.6.3 Operational Aspects5.7 Other Effects of Plant Operation5.8 Resources Committed5.8.1 Resources Committed During Plant Lifetime5.8.2 Irretrievable Commitment of Resources5.2-25.2-25.2-45.2-55.3-15.3-15.3-15.3-2A 125.3-35.3-55.3-55.3-55.3-65.3-85.4-15.4-15.4-25.4-25.4-35.5-15.5-15.5-15.5-25.6-15.6-15.6-15. 6-15.7-15.8-15.8-15.8-2xiiM.R.27/731/74 CONTENTSPage6.0 EFFLUENT AND ENVIRONMENTAL MEASUREMENTS AND MONITORINGPROGRAM6.1Preoperational Environmental Programs6.1.1 Surface Waters6.1.1.1 Physical and Chemical MonitoringProgram6.1.1.2 Biological Monitoring Program6.1.1.3 Previous Environmental Studies6.1.2 Groundwater6.1.2.1 Physical and Chemical Parameters6.1.2.2 Models6.1.3 Air6.1.3.1 Meteorology6.1.3.2 Model6.1.4 Land6.1.4.1 Geology and Soils6.1.4.2 Land Use and Demographic Surveys6.1.4.3 Ecological Parameters6.1.5 Radiological Surveys6.1.5.1 Sampling Media, Location and Frequencj6.1.5.2 Analytical Sensitivity6.1.5.3 Data Analysis and Presentation6.1.5.4 Program Statistical SensitivityApplicant's Proposed Operational Monitoring Programs6.2.1 Radiological Monitoring6.2.1.1 Plant Monitoring System6.2.1.2 Environmental Radiological Monitoring6.2.2 Chemical Effluent Monitoring6.2.3 Thermal Monitoring Program6.2.4 Meteorological Monitoring6.0-16.1-16.1-16.1-26.1-36.1-106.1-106.1-106.1-116.1-126.1-126.1-156.1-186.1-186.1-206.1-266.1-286.1-306.1-306.1-306.1-336.2-16.2-16.2-16.2-56.2-66.2-66.2-8Y6.2xiiiM.R.27/73 CONTENTSPage6.2.5 Ecological Monitoring6.2.5.1 Aquatic Monitoring6.2.5.2. Terrestrial Monitoring6.3 Related Environmental Measurement and MonitoringPrograms6.3.1 Hydrology6.3.1.1 Precipitation6.3.1.2 Streamflow6.3.2 Biology6.3.3 Radiation6.3.4 Federal Environmental Protection Agency6.3.5 Relevance of the Related EnvironmentalMeasurement and Monitoring Programs6.3.6 Exchange of Information7.:0 ENVIRONMENTAL EFFECTS OF ACCIDENTS7.1 Plant Accidents7.1.1 Meteorology-and Model for Dose Calculation7.1.1.1 Meteorology7.1.1.2 Dose Calculation Models6.2-106.2-106.2-106.3-16.3-I6.3-16.3-26.3-26.3-36.3-36.3-36.3-47.1-17.1-17.1 -2a7.1-2a7.1-37.1-47.1-47.1-47.1-47.1-67.1-67.1-97.1-117.1.2 Accident7.1.2.17.1.2.27.1.2.37.1.2.4AnalysesAccidentAccidentAccidentAccident1.0 -2.0 -3.0 -4.0 -Trivial IncidentsSmall Release OutsideContainmentRadwaste System FailureFission Products toPrimary System (BWR)Fission Products toPrimary and SecondarySystems (PWR)Refueling AccidentSpent Fuel HandlingAccident7.1.2.5 Accident 5.0 -7.1.2.67.1 .2.7Accident 6.0Accident 7.0xivM.R.27/73 CONTENTSPage7.1.2.8 Accident 8.0 -Accident Initiation 7.1-14Events Considered in Design BasisEvaluation in the Safety AnalysisReport7.1.3 Summary of Accident Doses 7.1-207.2 Transportation Accidents 7.2-17.2.1 New Fuel Transportation 7.2-17.2.2 Spent Fuel 7.2-17.2.3 Packaged Radioactive Waste 7.2-37.3 Other Accidents 7.3-17.3.1 Cooling Lake Dike Failures 7.3-18.0 ECONOMIC AND SOCIAL EFFECTS OF PLANT CONSTRUCTION AND 8.0-1OPERATION8.1 Value of Delivered Products 8.1-18.2 Estimated Income from Wages and Materials 8.2-18.3 Employment 8.3-18.4 Taxes 8.4-18.5 Externalities 8.5-19.0 ALTERNATIVE ENERGY SOURCES AND SITES 9.1-1.9.1 Alternatives Not Requiring the Creation of New 9.1-1Generating Capacity9.1.1 Purchased Power 9.1-19.1.2 Other Alternatives 9.1-29.2 Alternatives Requiring the Creation of New 9.2-1Generating Capacity9.2.1 System Planning for Candidate Regions 9.2-19.2.2 Recent Developments 9.2-39.2.3 Alternative Fuels 9.2-59.2.4 Future Planning Considerations 9.2-79.2.5 Selection of Candidate Site -Plant Alternatives 9.2-9xv M.R.27/73 Supplement 2CONTENTS9.2.5.1 Alternative I Near Illinois-IndianaBorder9.2.5.2 Alternative II West of Kankakee9.2.5.3 Alternative III on Horse Creek9.2.5.4 Selection of the Braidwood Site9.3 Comparison of Practicable Alternatives and theProposed Facility9.3.1 Site Alternatives9.3.2 Fuel Alternatives9.3.3 Plant Alternatives9.3.3.1 Plant Costs9.3.3.2 Plant Benefits10.0 PLANT DESIGN ALTERNATIVES10.1Cooling System (Exclusive of Intake and Discharge)10.1.1 Cooling System Alternatives10.1.1.1 Direct Dissipation to the KankakeeRiver10.1.1.2 Dry Cooling Towers, Natural andMechanical Draft10.1.1.3 Spray Pond10.1.1.4 Cooling Pond10.1.1.5 Natural Draft Wet Cooling Tower10.1.1.6 Mechanical Draft Wet Cooling Tower10.1.1.7 Other Cooling Systems10.1.2 Economic Costs of Cooling SystemAlternatives10.1.3 Environmental Costs10.1.3.1 Surface Water10.1.3.2 Groundwater10.1.3.3 Air10.1.3.4 LandIntake System10.2.1 Environmental ConsiderationsPage9.2-109.2-119.2-129.2-139.3-19.3-19.3-29.3-49.3-59.3-7A10.0-110.1-110.1-110.1-110.1-210.1-310.1-410.1-510.1-710.1-8lO.l-8A10.1-1010.1-1010.1-1110.1-1210.1-1710.2-110.2-1121210.2xviM.R.27/73174 CONTENTSPage10.2.1.1 Impingement or Entrapment 10.2-110.2.1.2 Transport or Retention 10.2-410.2.2 Environmental Costs 10.2-510.2.2.1 Impingement or Entrapment of Fish 10.2-5.10.2.2.2 Transport or Retention of 10.2-7Phytoplankton and Zooplankton10.2.2.3 Fish Eggs and Larvae 10.2-910.3 Discharge System 10.3-110.3.1 Environmental Considerations 10.3-110.3.2 Environmental Costs 10.3-310.3.2.1 Water Quality Excess Heat 10.3-310.3.2.2 Water Quality, Oxygen Availability 10.3-410.3.2.3 Aquatic Organisms 10.3-410.3.2.4 Wildlife 10.3-510.3.2.5 Fish, Migratory 10.3-510.4 Chemical System 10.4-110.4.1 Environmental Considerations 10.4-110.4.2 Environmental Costs 10.4-210.4.2.1 Chemical Discharge to Kankakee 10.4-2River10.4.2.2 Chemical Discharge to Ambient Air 10.4-410.5 Biocide System 10.5-110.6 Sanitary Waste System 10.6-110.6.1 Environmental Considerations 10.6-110.6.2 Environmental Costs 10.6-210.7 Liquid Radwaste System 10.7-110.7.1 Environmental Considerations 10.7-110.7.2 Environmental Costs 10.7-110.7.2.1 Radionuclides Discharged to 10.7-1Water Body10.7.2.2 Radionuclide Contamination of 10.7-1Groundwaterxvii M.R.27/73 CONTENTSPage10.8 Gaseous Radwaste System 10.8-110.9 Transmission System 10.9-110.9.1 Environmental Considerations 10.9-110.9.2 rransmission Route Selection 10.9-210.9.2.1 Land, Amount 10.9-210.9.2.2 Land Use and Land Value 10.9-210.9.2.3 People, Aesthetics 10.9-210.9.3 Transmission Facilities Construction 10.9-310.9.3.1 Land Adjacent to Right-of-Way 10.9-310.9.3.2 Land, Erosion 10.9-310.9.3.3 Wildlife 10.9-310.9.4 Transmission Line Operation 10.9-310.9.4.1 Land Use 10.9-310.9.4.2 Wildlife 10.9-310.10 Other Systems, Construction and Operation 10.10-110.10.1 Auxiliary Systems and Services 10.10-110.10.2 Plant Construction 10.10-110.10.2.1 People, Amenities 10.10-110.10.2.2 People, Accessibility of 10.10-2Historical Sites10.10.2.3 People, Accessibility of 10.10-2Archaeological Sites10.10.2.4 Wildlife 10.10-210.10.2.5 Land, Erosion 10.10-210.10.2.6 Kankakee River 10.10-310.10.3 Plant Operation 10.10-310.10.3.1 People, Amenities 10.10-310.10.3.2 People, Aesthetics 10.10-410.10.3.3 Wildlife 10.10-510.10.3.4 Land, Flood Control 10.10-510.10.4 Other Impacts 10.10-510.10.5 Combined or Interactive Effects 10.10-5M.R.2xviii 7/73 CONTENTS10.11 The Proposed Plant 10.11-110.11.1 Selection of Plant Design 10.11-110.11.2 Physical Costs 10.11-211.0 SUMMARY BENEFIT-COST ANALYSIS 11.0-111.1 Site-Plant Alternatives 11.1-111.1.1 Site-Fuel Alternatives 11.1-111.1.2 Plant Design Alternatives 11.1-111.1.2.1 Water Use Assessment 11.1-211.1.2.2 Land Use Assessment 11.1-311.1.2.3 Radiological Discharge Assessment 11.1-411.1.2.4 Evaluation of Alternatives 11.1-411.2 Sunmmary Description of the Proposed Plant 11.2-111.3 Important Benefits of the Proposed Facility 11.3-111.3.1 Value of Delivered Products 11.3-111.3.2 Income and Employment 11.3-211.3.3 Taxes 11.3-211.3.4 Basis for Selection of Benefits 11.3-311.4 Balance of Benefits and Costs 11.4-112.0 ENVIRONMENTAL APPROVALS AND CONSULTATIONS 12.0-113.0 REFERENCES14.0 APPENDICES14.0 Appendix 0 -Supplementary Terrestrial Data for 14.0-1the Braidwood Site14.1 Appendix I -Life Histories of Kankakee River Fish 14.1-114.2 Appendix II -Joint Frequency Distribution of 14.2-1Humidity and Temperature, Argonne National LaboratoryMeteorology Observation Site, January 1, 1950,through December 31, 196414.3 Appendix III -Analytical Models for Radiation 14.3-1Dose Assessment14.4 Appendix IV -Radioactivity in Plant Systems Used 14.4-1As Source Terms for Evaluating Environmental Effectsof Accidentsxix M.R.27/73 Supplement 1CONTENTSAppendix IVa -Data for Radioactive Source-Term 14.4-9Calculation14.5 Appendix V -Local Economic Multipliers for Use in 14.5-1Estimating the Impact of a Nuclear Plant14.6 Appendix VI -Illinois Water Pollution Control Rules 14.6-114.7 Appendix VII -An Archaeological Assessment of TheBraidwood Nuclear Station, Will and Kankakee Counti.es,Illinois 14.7-1xxM.R.27/7311/73 LIST OF TABLESTable No. Page2.8-5 Radionuclide Activities in Surface and Well WaterSamples Upstream of Dresden Station 2.8-122.8-6 Radiochemical Activities in Fish Samples Collectedat Dresden Lock and Dam Pool 2.8-132.8-7 Gross Beta Radioactivity in Bottom Sediments andAquatic Biota Collected near Dresden Intake Canal 2.8-142.8-8 Radiochemical Activities in Grass Sample AnalysisCollected in Area of Braidwood Station during 1971-1972 2.8-152.8-9 Radlonuclide Concentration in Milk Samples From DairyFarms North of Dresden Station 2.8-172.8-10 Radiochemlcal Activities in Vegetable Samples from LocalFarms during 1971 2.8-192.8-11 Estimated Average Annual Genetically Significant Doseto the Population in Illinois, 1970 2.8-21Volume II3.0 THE PLANT3.3-1 Seasonal Variations of Cooling Lake System 3.3-63.4-1 Braidwood Station Cooling Lake Evaporation Rate 3.4-53.4-2 Estimated Monthly Variation in Discharge TemperatureCooling Lake Blowdown 3.4-63.5-1 Daily Average and Maximum Waste Stream Flows andExpected Isotopic Analysis Based Upon 1.0 CapacityFactor 3.5-153.5-2 Expected Radioactive Releases from Liquid RadwasteSystem for Two 1100 MWe Units at 100% Capacity Factor 3.5-173.5-3 Total Annual Release by Nuclide at 1.0 Capacity Factor 3.5-203.5-4 Annual Radwaste Releases 3.5-223.5-5 Estimated Annual Gaseous Radwaste System Release PerUnit 3.5-233.5-6 Additional Ventilation Released from Plant by Isotope 3.5-243.6-1 Seasonal Analysis of Kankakee River 3.6-4M.R.2xxix 7/73 Supplement 4LIST OF TABLESTable No. Page3.6-2 Well Water Analysis at Braidwood 3.6-53.6-3 Estimates of Average Effluent Analysis 3.6-6 2,43.6-4 Estimates of Maximum Effluent Water Composition 3.6-73.7-1 Illinois Emission Standards 3.7-33.8-1 Solid Radioactive Wastes 3.8-34.0 ENVIRONMENTAL EFFECTS OF SITE PREPARATION, PLANT ANDTRANSMISSION LINE CONSTRUCTION4.1-1 Phytoplankton, Zooplankton, Periphyton, Benthos and 4.1-9AFish5.0 ENVIRONMENTAL EFFECTS ON PLANT OPERATION5.1-1 Summary of Temperature Characteristics of the Braid- 5.1-29wood Cooling Lake and the Kankakee River Blowdown5.1-IA Estimated Isotherm Areas Resulting From a Discharge 5.1-30Into the Kankakee River, acres5.1-2 Maximum River Temperatures as Specified by Water 5.1-31Pollution Regulations of Illinois5.1-3 Temperature Characteristics of Kankakee River Fish 5.1-325.1-4 Temperature Characteristics for Carp 5.1-345.1-5 Spawning Habits of Selected Indigenous Fish Species 5.1-3Gof the Kankakee River5.1-6 Estimated Time for Cooling to Various Temperatures 5.1-36in Braidwood Lake5.1-7 Dresden Plant Intake Screen Fish Mortality for Species 5.1-37also Found At The Braidwood-Kankakee River Site5.1-7A Monthly Variation in Surface Temperature Profile Of 5.1-38Braidwood Cooling Lake5.1-8 Anticipated Fogging from Braidwood Cooling Lake 5.1-395.2-1 Annual Average Concentration of Radionuclides Dis- 5.2-7charged into Kankakee River in Liquid Effluent fromTwo Units at Braidwood Stationxxx M.R.27/731/746/74 Supplement 2LIST OF TABLESTable No.5.2-2 Bioaccumulation Factors for Radionuclides in Fresh-water Biota5.2-3 Distance to Site Boundary from Release Point.5.2-4 Radionuclides in Gaseous Effluents for Two Units atBraidwood Station5.2-5 Summary of Estimated Radiation Doses to Biota Exposedto Radioactive Discharges of Braidwood Station5.3-1 Estimated Radiation Dose to the Public by DirectRadiation from Braidwood Station5.3-1A Approximate Distance from the Center of the TurbineBuilding to the Nearest Residence and NearestPotential Pasture5.3-2 Summary of Estimated Individual Organ Doses fromOperation of Two Units at Braidwood Station5.3-3 Summary of Estimated Population Dose (Whole Body GammaExposure) from Operation of Two Units at BraidwoodStation5.4-1 Chemical Discharges of the Braidwood Station IncludingLeaching Effects5.4-2 Estimated Concentrations of Chemicals Dischargedto Kankakee River in August5.8-1 Percent of Kankee River Required for Maximum NetUse of 54 CFS Based on Historical River FlowsPage5.2-85.2-95.2-1025.2-115.3-95.3-9A 125.3-105.3-115.4-55.4-65.8-56.0 EFFLUENT AND ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAM6.1-1 Aquatic Analyses for the Braidwood Site Physical and 6.1-34Chemical Parameters6.1-2 Aquatic Analyses for the Braidwood Site Biological 6.1-36Parameters6.1-2A Pre-Operational Aquatic Monitoring Program 1974-75 6.1-38A 26.1-3 Braidwood Aquatic Survey -Biological Methods 6.1-396.1-4 Comparison of Hanford and Pasquill Stability 6.1-41Classification Schemes6.1-5 Description of Braidwood Fall Terrestrial Survey 6.1-42TransectsxxxiM.R.27/731/74 Supplement 4LIST OF TABLESTable No. Page6.1-2a Aquatic Parameters for the Braidwood Site 6.1-38a6.1-2b Marsh/Pond Area Studies (1974-1975), Braidwood StationTerrestrial Monitoring Program Summary 6.1-38f6.1-2c Surmmary of the Terrestrial Monitoring Program for theBraidwood Site 6.1-38g6.1-5a Description of Braidwood Winter Terrestrial Survey 6.1-43Transects6.1-5b Description of Braidwood Spring Terrestrial Survey 6.1-44Transects6.1-6 Preoperational Radiological Sampling Program for the 6.1-45Braidwood Site6.1-7 Typical Analytical Sensitivities for Radiological 6.1-46Monitoring6.1-8 Typical Gamma Spectroscopy Sensitivities 6.1-476.2-1 Proposed Chemical Effluent Monitoring in the Kankakee 6.2-11River6.2-la Summary of Temperature Characteristics of the Braidwood 6.2-13A 4Cooling Lake and Kankakee River Blowdown.7.0 ENVIRONMENTAL EFFECTS OF ACCIDENTS7.1-1 Classification of Postulated Accidents and Occurrences 7.1-217.1-2 Atmospheric Dilution Factors X/Q At The Site BoundaryFor Accident Conditions (PSAR) 7.1-227.1-3 Radiological Data For Gaseous Isotopes 7.1-237.1-4 Summary of Accident Doses and Compariso~n With 7.1-24Regulatory Standards7.1.4a Population Accident Doses 7.1-24A 11,47.1-5 Expected Occurrence of Accidents 7.1-257.1-6 Atmospheric Dilution Factors (X/Q) at 50 Miles from 7.1-27Braidwood Station for Accident Conditions (PSAR)7.1-7 Summary of Accident Doses and Comparison with Regula- 7.1-28tory Standards at 50 miles from Braidwood StationM.R.27/73xxxii 11/736/74 Supplement 4LIST OF TABLESTable No. Page8.0 ECONOMIC AND SOCIAL EFFECTS OF PLANT CONSTRUCTION AND OPERATION8.0 Estimated Annual Harvest and Income From Crops Produced 8.0-5on Agricultural Land Required for Braidwood StationCooling Lake8.1-1 Commonwealth Edison Company Revenue and Megawatt-Hours 8.1-2Sold by Class of Service, 12 Months Ended June 30, 1972xxxiiA46/74 Supplement 3LISTOF TABLESTable No.. Page8.1-2 Braidwood Station Estimated Kilowatt-Hours and DollarValue by Class of Customer 8.1-38.1-3 Benefits from the Proposed Facility 8.1-48.2-1 Estimated Income from Construction and Operation ofthe Braidwood Station 8.2-28.3-1 Estimated Labor Required for Construction of theBraidwood Station 8.3-3*8.3-2 Employment by Industry within .Will County 8.3-48.3-3 Estimated Distribution of Regional Employment withinWill County 8.3-58.3-4 Estimated Braidwood Station Employment Payroll 8.3-68.3-5 Braidwood Station Income and Employment 8.3-78.3-6 Regional Employment due to Operation of BraidwoodStation 8.3-88.4-1 Distribution of Proposed Braidwood Station EstimatedProperty Taxes by Taxing Unit for Tax Years 1976through 1981 (Excluding Real Estate Tax on Land) 8.4-28.5-1 Comparison of Gaseous Sulfur Emissions and ElectricityRequirements in Steelmaking 8.5-68.5-2 Comparison of Air Pollution Resulting from ElectricPowered Trains and Automobiles 8.5-79.0 ALTERNATIVE ENERGY SOURCES AND SITES9.2-1 Estimated Cost Comparison Between Braidwood andAlternative III for Dam Construction and Land 9.2-13B 39.3-1 Environmental Characteristic Comparisons 9.3-89.3-2 Summary of Plant Costs 9.3-1210.0 PLANT DESIGN ALTERNATIVES10.1-1 Braidwood Station Summary of Estimated Costs ofPhysical'Plant Facilities for Cooling SystemAlternatives 10.1-20xxxiii M.R.27/732/74 Supplement 2LIST OF TABLESTable No.10.1-2 Braidwood Station Summary of Physical Facilities Costsfor Cooling Systems Alternatives10.1-3 Braidwood Station Operating Performance and Costsof Cooling System Alternatives10.1-4 Kankakee River Consumptive Water Use By BraidwoodStation10.1-5 Duration of Visible Plume Occurrence for NaturalDraft Wet Cooling Tower System10.1-6 Frequency of Visible Plume Occurrence for NaturalDraft Wet Cooling Tower System10.1-7 Duration Range of Ground Fog Occurrence for NaturalDraft Wet Cooling Tower System10.1-8 Duration of Ground Fog Occurrence for Mechanical DraftWet Cooling Tower System10.1-9 Frequency of Ground Fog Occurrence Mechanical DraftWet Cooling Tower System10.1-10 Chemical Salts Deposition Rates for Natural Draft WetCooling Tower Systems10.1-11 Chemical Salts Deposition Rates for Mechanical DraftWet Cooling Tower Systems10.2-1 Projected Intake Screen Fish Mortality for theBraidwood Station, Large Cooling Lake Alternative10.3-1 Excess Heat to the Kankakee River from CoolingSystem Alternatives10.4-1 Circulating Water Concentration for Cooling SystemAlternatives (concentration in mg/l)10.4-2 Blowdown Concentration at Discharge to River forCooling System Alternatives (concentration in mg/i)10.11-1 Cost Description -Plant Design Alternatives10.11-2 Summary of Data Used in Selection of Plant DesignPage10.1-2110. 1-2210. 1-2410.1-2510.1-2610.1-2710.1-2810.1-2910.1-3010.1-3110.2-1110.3-610.4-610.4-710.11-310.11-7 2xxxivM.R.27/731/74 Supplement 2LIST OF TABLESTable No. Page11.0 SUMMARY BENEFIT-COST ANALYSIS11.2-1 Cost Description of Proposed Facility 11.2-211.2-2 Cost Factors 11.2-5J212.0 ENVIRONMENTAL APPROVALS AND CONSULTATIONS12.0-1 Licenses and Permits Required for Braidwood Station 12.0-2M.R.2xxxv 7/731/74I LIST OF TABLESTable No. Page2.8-5 Radionuclide Activities in Surface and Well WaterSamples Upstream of Dresden Station 2.8-122.8-6 Radiochemical Activities in Fish Samples Collectedat Dresden Lock and Dam Pool 2.8-132.8-7 Gross Beta Radioactivity in Bottom Sediments andAquatic Biota Collected near Dresden Intake Canal 2.8-142.8-8 Radiochemical Activities in Grass Sample AnalysisCollected in Area of Braidwood Station during 1971-1972 2.8-152.8-9 Radionuclide Concentration in Milk Samples From DairyFarms North of Dresden Station 2.8-172.8-10 Radiochemical Activities in Vegetable Samples from LocalFarms during 1971 2.8-192.8-11 Estimated Average Annual Genetically Significant Doseto the Population in Illinois, 1970 2.8-21Volume II3.0 THE PLANT3.3-1 Seasonal Variations of Cooling Lake System 3.3-63.4-1 Braidwood Station Cooling Lake Evaporation Rate 3.4-53.4-2 Estimated Monthly Variation in Discharge TemperatureCooling Lake Blowdown 3.4-63.5-1 Daily Average and Maximum Waste Stream Flows andExpected Isotopic Analysis Based Upon 1.0 CapacityFactor 3.5-153.5-2 Expected Radioactive Releases from Liquid RadwasteSystem for Two 1100 MWe Units at 100% Capacity Factor 3.5-173.5-3 Total Annual Release by Nuclide at 1.0 Capacity Factor 3.5-203.5-4 Annual Radwaste Releases 3.5-223.5-5 Estimated Annual Gaseous Radwaste System Release PerUnit 3.5-233.5-6 Additional Ventilation Released from Plant by Isotope 3.5-243.6-1 Seasonal Analysis of Kankakee River 3.6-4M.R.2xxix 7/73 Supplement 4LIST OF TABLESTable No. Page3.6-2 Well Water Analysis at Braidwood 3.6-53.6-3 Estimates of Average Effluent Analysis 3.6-6 2,43.6-4 Estimates of Maximum Effluent Water Composition 3.6-73.7-1 Illinois Emission Standards 3.7-33.8-1 Solid Radioactive Wastes 3.8-34.0 ENVIRONMENTAL EFFECTS OF SITE PREPARATION, PLANT ANDTRANSMISSION LINE CONSTRUCTION4.1-1 Phytoplankton, Zooplankton, Periphyton, Benthos and 4.1-9AFish5.0 ENVIRONMENTAL EFFECTS ON PLANT OPERATION5.1-1 Summary of Temperature Characteristics of the Braid- 5.1-29wood Cooling Lake and the Kankakee River Blowdown5.1-lA Estimated Isotherm Areas Resulting From a Discharge 5.1-30Into the Kankakee River, acres5.1-2 Maximum River Temperatures as Specified by Water 5.1-31Pollution Regulations of Illinois5.1-3 Temperature Characteristics of Kankakee River Fish 5.1-325.1-4 Temperature Characteristics for Carp 5.1-345.1-5 Spawning Habits of Selected Indigenous Fish Species 5.1-35of the Kankakee River5.1-6 Estimated Time for Cooling to Various Temperatures 5.1-36in Braidwood Lake5.1-7 Dresden Plant Intake Screen Fish Mortality for Species 5.1-37also Found At The Braidwood-Kankakee River Site5.1-7A Monthly Variation in Surface Temperature Profile Of 5.1-38Braidwood Cooling Lake5.1-8 Anticipated Fogging from Braidwood Cooling Lake 5.1-395.2-1 Annual Average Concentration of Radionuclides Dis- 5.2-7charged into Kankakee River in Liquid Effluent fromTwo Units at Braidwood Stationxxx M.R.27/731/746/74 Supplement 2LIST OF TABLESTable No.5.2-2 Bioaccumulation Factors for Radionuclides in Fresh-water Biota5.2-3 Distance to Site Boundary from Release Point5.2-4 Radionuclides in Gaseous Effluents for Two Units atBraidwood Station5.2-5 Summary of Estimated Radiation Doses to Biota Exposedto Radioactive Discharges of Braidwood Station5.3-1 Estimated Radiation Dose to the Public by DirectRadiation from Braidwood Station5.3-lA Approximate Distance from the Center of the TurbineBuilding to the Nearest Residence and NearestPotential Pasture5.3-2 Summary of Estimated Individual Organ Doses fromOperation of Two Units at Braidwood Station5.3-3 Summary of Estimated Population Dose (Whole Body GammaExposure) from Operation of Two Units at BraidwoodStation5.4-1 Chemical Discharges of the Braidwood Station IncludingLeaching Effects5.4-2 Estimated Concentrations of Chemicals Dischargedto Kankakee River in August5.8-1 Percent of Kankee River Required for Maximum NetUse of 54 CFS Based on Historical River FlowsPage5.2-85.2-95.2-1025.2-115.3-95.3-9A 1 25.3-105.3-115.4-55.4-65.8-56.0 EFFLUENT AND ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAM6.1-1 Aquatic Analyses for the Braidwood Site Physical and 6.1-34Chemical Parameters6.1-2 Aquatic Analyses for the Braidwood Site Biological 6.1-36Parameters6.1-2A Pre-Operational Aquatic Monitoring Program 1974-75 6.1-38A 26.1-3 Braidwood Aquatic Survey -Biological Methods 6.1-396.1-4 Comparison of Hanford and Pasquill Stability 6.1-41Classification Schemes6.1-5 Description of Braidwood Fall Terrestrial Survey 6.1-42TransectsxxxiM.R.27/731/74 Supplement 4LIST OF TABLESTable No. Page6.1-2a Aquatic Parameters for the Braidwood Site 6.1-38a6.1-2b Marsh/Pond Area Studies (1974-1975), Braidwood StationTerrestrial Monitoring Program Summary 6.1-38f6.1-2c Summary of the Terrestrial Monitoring Program for theBraidwood Site 6.1-38g6.1-5a Description of Braidwood Winter Terrestrial Survey 6.1-43Transects6.1-5b Description of Braidwood Spring Terrestrial Survey 6.1-44Transects6.1-6 Preoperational Radiological Sampling Program for the 6.1-45Braidwood Site6.1-7 Typical Analytical Sensitivities for Radiological 6.1-46Monitoring6.1-8 Typical Gamma Spectroscopy Sensitivities 6.1-476.2-I Proposed Chemical Effluent Monitoring in the Kankakee 6.2-11River6.2-la Summary of Temperature Characteristics of the Braidwood 6.2-13A 4Cooling Lake and Kankakee River Blowdown.7.0 ENVIRONMENTAL EFFECTS OF ACCIDENTS7.1-1 Classification of Postulated Accidents and Occurrences 7.1-217.1-2 Atmospheric Dilution Factors X/Q At The Site BoundaryFor Accident Conditions (PSAR) 7.1-227.1-3 Radiological Data For Gaseous Isotopes 7.1-237.1-4 Summary of Accident Doses-and Comparison With 7.1-24Regulatory Standards7.1.4a Population Accident Doses 7.1-24A 1,47.1-5 Expected Occurrence of Accidents 7.1-257.1-6 Atmospheric Dilution Factors (X/Q) at 50 Miles from 7.1-27Braidwood Station for Accident Conditions (PSAR)7.1-7 Summary of Accident Doses and Comparison with Regula- 7.1-28tory Standards at 50 miles from Braidwood StationM.R.27/73xxxii 11/736/74 Supplement 4LIST OF TABLESTable No. Page8.0 ECONOMIC AND SOCIAL EFFECTS OF PLANT CONSTRUCTION AND OPERATION8.0 Estimated Annual Harvest and Income From Crops Produced 8.0-5on Agricultural Land Required for Braidwood StationCooling Lake8.1-1 Commonwealth Edison Company Revenue and Megawatt-Hours 8.1-2Sold by Class of Service, 12 Months Ended June 30, 1972xxxiiA46/74 Supplement 3LIST'OF TABLESTable No.. Page8.1-2 Braidwood Station Estimated Kilowatt-Hours and DollarValue by Class of Customer 8.1-38.1-3 Benefits from the Proposed Facility 8.1-48.2-1 Estimated Income from Construction and Operation ofthe Braidwood Station 8.2-28.3-1 Estimated Labor Required for Construction of theBraidwood Station 8.3-3*8.3-2 Employment by Industry within Will County 8.3-48.3-3 Estimated Distribution of Regional Employment withinWill County 8.3-58.3-4 Estimated Braidwood Station Employment Payroll 8.3-68.3-5 Braidwood Station Income and Employment 8.3-78.3-6 Regional Employment due to Operation of BraidwoodStation 8.3-88.4-1 Distribution of Proposed Braidwood Station EstimatedProperty Taxes by Taxing Unit for Tax Years 1976through 1981 (Excluding Real Estate Tax on Land) 8.4-28.5-1 Comparison of Gaseous.Sulfur Emissions and ElectricityRequirements in Steelmaking 8.5-68.5-2 Comparison of Air Pollution Resulting from ElectricPowered Trains and Automobiles 8.5-79.0 ALTERNATIVE ENERGY SOURCES AND SITES9.2-1 Estimated Cost Comparison Between Braidwood andAlternative III for Dam Construction and Land 9.2-13Bj39.3-1 Environmental Characteristic Comparisons 9.3-89.3ý-2 Summary of Plant Costs 9.3-1210.0 PLANT DESIGN ALTERNATIVES10.1-1 Braidwood Station Summary of Estimated Costs of*Physi'cal*Plant Facilities for Cooling SystemAl ternatives 10.1-20xxxiii M.R.27/732/74 Supplement 2LIST OF TABLESTable No.10.1-2 Braidwood Station Summary of Physical Facilities Costsfor Cooling Systems Alternatives10.1-3 Braidwood Station Operating Performance and Costsof Cooling System Alternatives10.1-4 Kankakee River Consumptive Water Use By BraidwoodStation10.1-5 Duration of Visible Plume Occurrence for NaturalDraft Wet Cooling Tower System10.1-6 Frequency of Visible Plume Occurrence for NaturalDraft Wet Cooling Tower System10.1-7 Duration Range of Ground Fog Occurrence for NaturalDraft Wet Cooling Tower System10.1-8 Duration of Ground Fog Occurrence for Mechanical DraftWet Cooling Tower System10.1-9 Frequency of Ground Fog Occurrence Mechanical DraftWet Cooling Tower System10.1-10 Chemical Salts Deposition Rates for Natural Draft WetCooling Tower Systems10.1-11 Chemical Salts Deposition Rates for Mechanical DraftWet Cooling Tower Systems10.2-1 Projected Intake Screen-Fish Mortality for theBraidwood Station, Large Cooling Lake Alternative10.3-1 Excess Heat to the Kankakee River from CoolingSystem Alternatives10.4-1 Circulating Water Concentration for Cooling SystemAlternatives (concentration in mg/l)10.4-2 Blowdown Concentration at Discharge to River forCooling System Alternatives (concentration in mg/i)10.11-1 Cost Description -Plant Design Alternatives10.11-2 Summary of Data Used in Selection of Plant DesignPage10.1-2110. 1-2210.1-2410.1-2510.1-2610.1-2710. 1-2810.1-2910.1-3010.1-3110.2-1110.3-610.4-610.4-710.11-310.11-7 f2xxxivM.R.27/731/74 Supplement 2LIST OF TABLESTable No. Page11.0 SUMMARY BENEFIT-COST ANALYSIS11.2-1 Cost Description of Proposed Facility 11.2-211.2-2 Cost Factors 11.2-5J212.0 ENVIRONMENTAL APPROVALS AND CONSULTATIONS12.0-1 Licenses and Permits Required for Braidwood Station 12.0-2M.R.2xxxv 7/731/74 Supplement 3LIST OF FIGURESVolume IIFigure No. Page3.0 THE -PLANT3.1-1 Braidwood Station Plan 3.1-33.2-1 Schematic Diagram for a Pressurized Water Reactor .3.2-33.3-1 Braidwood Station Water Usage Flow Diagram 3.3-73.4-1 Braidwood Cooling Lake 3.4-73.4-2 Kankakee River Intake Structure 3.4-83.4-3 Braidwood Station Proposed Discharge Structure 3.4-9 123.4-4 Location of Intake and Blowdown Structures on 3.4-10Kankakee River3.4-5 Braidwood Lake Surface Isotherms 3.4-113.5-1 Braidwood Station Liquid Radwaste Flow Diagram 3.5-253.5-2 Braidwood Station Gaseous Radwaste Flow Diagram 3.5-263.5-3. Braidwood Station Ventilation Stack Diagram 3.5-273.5-4 Braidwood Station General Arrangement Roof Plan 3.5-283.9-1 Transmission Lines 3.9-93.9-2 Route Map and Tower Profile, Braidwood -Joliet ROW 3.9-1033.9-3 Route Map and Tower Profiles, Braidwoad -Crete ROW 3.9-l1xxxviii M.R.21/742/74 Supplement 2LIST OF FIGURESFigure No. Page4.0 ENVIRONMENTAL EFFECTS OF SITE PREPARATION,PLANT AND TRANSMISSION LINE CONSTRUCTION4.1-1 Braidwood Site Construction Schedule 4.1-104.1-2 Braidwood Site Dikes and Drainage Pattern 4.1-114.1-3 Pipeline and River Screenhouse Area Plan 4.1-125.0 ENVIRONMENTAL EFFECTS ON PLANT OPERATION5.1-1 Representative Soils in the Lake Area 5.1-40 125.2-1 Schematic Representation of Radiation Exposure Pathways 5.2-12to Biota Resulting from Braidwood Station RadioactiveDischarges5.3-1 Schematic Representation of Radiation Exposure Pathways 5.3-12to Man Resulting from Braidwood Station RadioactiveDischarges5.3-2 Farms, Residences, and Topography within 2 Miles of 5.3-13 12Turbine Building6.0 EFFLUENT AND ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAM6.1-1 Locations of Aquatic Transects and Stations for the 6.1-48Braidwood Site6.1-2 Locations of Terrestrial Transects on Braidwood Site 6.1-496.1-3 Locations of Meteorological Monitoring Stations for the 6.1-50Braidwood Site6.1-4 Radiological Monitoring Stations for the Braidwood Site 6.1-516.2-1 Surface Isotherms from Computer Model for Sample Case 6.2-146.2-2 Surface Isotherms from Laboratory Model for Sample Case 6.2-156.2-3 Estimated Surface Isotherm in Kankakee River During 6.2-16February6.2-4 Estimated Surface Isotherm in Kankakee River During 6.2-17August6.2-5 Meteorological Tower Location 6.2-186.2-6 Annual Wind Rose at Dresden and at Argonne National 6.2-19 2Laboratory6.3-1 Kankakee River Basin Gauging Station 6.3-5M.R.2xxxix 7/731/74 Supplement 3LIST OF FIGURESFigure No.9.0 ALTERNATIVE ENERGY SOURCES AND SITES9.2-la Schematic Location of Inputs to the Metropolitan Area9.2-1 Commonwealth Edison Company Outer Transmission System9.2-2 Alternate Generating Station Sites9.2-:1 Site Alternative I Near Illinois-Indiana Border9.2-4 Site Alternative II West of Kankakee9.2-5 Preliminary Site Development Alternate III, Lake Siteat Horse Creek9.2-6 Preliminary Site Development Atlernate III, Tower Siteat Horse-CreekPage9.2-149.2-159.2-169.2-179.2-189.2-1939 20M.R.27/732/74xl W5.0 ENVIRONMENTAL EFFECTS ON PLANT OPERATION5.1 EFFECTS OF OPERATION OF THE HEAT DISSIPATION SYSTEMTwo nuclear steam electric units rated at 1175 MWe (gross) each will bebuilt at the Braidwood Site. Operating at rated capacity, the thermalload that must be removed by the heat dissipation system is about 4500megawatts; approximately 3250 cfs of condenser cooling water will berequired.The two bodies of water which can be affected by the heated power planteffluent are Braidwood Lake and the Kankakee River; the lake is consideredto be an extension of the plant. It will be operated as a private coolingpond and will not be maintained as a refuge or conservatory. BraidwoodLake interacts with the Kankakee River, a public body of water, and theseinteractions are subject to all applicable regulations.5.1.1 RIVER TEMPERATURE PREDICTIONSThethermal effect that the lake blowdown will exert on the river isdependent on the flow rate and ambient temperature of the river as wellas the temperature of the blowdown stream. These parameters are summarizedon a monthly basis in Table 5.1-1. The distribution of the temperatureperturbation in the river caused by the blowdown discharge has been calcu-lated using the transport and dispersion model described in Section 6.2.3.This was done for the average conditions of each month of the year. Thenumerical results are summarized in Table 5.1-la in terms of thermal plumeareas for various temperature-excess values above the river ambienttemperature in 'F. The plume area is the geometrical area in acres con-tained within the corresponding isotherm (line of constant temperature)and is the area of river surface where temperature is at or above theisotherm temperature.4M.R.25.1-1 7/73 A plot of the thermal plume profile downstream at the discharge to theKankakee River is provided for the month of August in Figure 6.2-3 whichrepresents the period with the highest discharge temperature, highestambient river temperature and lowest average river flow. A correspondingplot (Figure 6.2-3) is provided for the month of February which representsthe period with the maximum differential between discharge temperatureand ambient river temperature. The features of the thermal plume forother months of the year can be obtained from Table 5.1-1a. It should benoted that the maximum area associated with the 5*F isotherm occurs inDecember and has a value of only 0.45 acres.The extent to which the thermal plume (5°F isotherm) is projected into theriver was determined to be 28% of the river width in August, 33% in Septemberand 22% in December.In the following discussions it will be shown that the estimated BraidwoodStation thermal discharges are in compliance with the Illinois WaterPollution Standards.5.1.2 ILLINOIS THERMAL STANDARDS5.1.2.1 RULES APPLICABLE TO THE KANKAKEE RIVERThe Kankakee River is applicable to regulations designated "General UseRule 203 of the Water Pollution Regulations of Illinois dated March1972".(1) The general standards described in Rule 203 are designed to"protect the state's water for aquatic life, agricultural use, primaryand secondary use and most industrial uses, and ensure the aestheticquality of the state's aquatic environment."'(2) Sections pertinent tothermal discharges include the following:"(1) There shall be no abnormal temperature changes that mayadversely affect aquatic life unless caused by naturalconditions.M.R.25.1-2 7/73 (2) The normal daily and seasonal temperature fluctuations thatexisted before the addition of heat due to other than naturalcauses shall be maintained.(3) The maximum temperature rise above natural temperatures shallnot exceed 5°F.(4) In addition, the water temperature at representative locationsin the main river shall not exceed the maximum limits in thefollowing table (Table 5.1-2) during more than one percent ofthe hours in the 12-month period ending with any month. More-over, at no time shall the water temperature at such locationsexceed the maximum limits by more than 3°F.(5) The owner or operator of a source of heated effluent which dis-charges 0.5 billion British thermal units per hour or more shalldemonstrate in a hearing before the Illinois Pollution ControlBoard not less than 5 nor more than 6 years after the effectivedate of these regulations or, in the case of new sources, afterthe commencement of operation, that discharges from that sourcehave not caused and cannot be reasonably expected to cause signi-ficant ecological damage to the receiving waters. If such proofis not made to the satisfaction of the Board, appropriate correc-*tive measures shall be taken within a reasonable time as deter-mined by the Board.(6) Permits for heated effluent discharges, whether issued by theBoard or the Environmental Protection Agency, shall be subjectto revision in the event that reasonable future developmentcreates a need for reallocation of the assimilative capacityof the receiving stream as defined in the regulation above.M.R.25.1-3 7/73 (7) The owner or operator of a source of heated effluent shallmaintain such records and conduct such studies of the effluentsfrom such source and of their effects as may be required by theEnvironmental Protection Agency or in any permit granted underthe Environmental Protection Act.(8) Appropriate corrective measures will be required if, upon com-plaint filed in accordance with Board Rules, it is found at anytime that any heated effluent causes significant ecologicaldamage to the-receiving stream."5.1.2.2 MIXING ZONESIllinois Water Pollution Regulations, Rule 201,(2) pertinent to mixingzones are as follows:"In the application of any of the rules and regulations in this chapter,whenever a water quality standard is more restrictive than its correspond-ing effluent standard, then an opportunity shall be allowed for the mixtureof an effluent with its receiving waters. Water quality standards must bemet at every point outside of the mixing zone. The size of the mixing zonecannot be uniformly prescribed. The governing principle is that the pro-portion of any body of water or segment thereof within mixing zones must bequite small if the water quality standards are to have any meaning. Thisprinciple shall be applied on a case-by-case basis to ensure that neitherany individual source nor the aggregate of sources shall cause excessivezones to exceed the standards. The water quality standards must be metin the bulk of the body of water, and no body of water may be used totallyas a mixing zone for a single outfall or combination of outfalls. More-over, except as otherwise provided in this Chapter, no single mixing zoneshall exceed the area of a circle with a radius of 600 feet. Single sourcesof effluents which have more than one outfall shall be limited to a totalmixing area no larger than that allowable if a single outfall were used.M.R.25.1-4 7/73 In determining the size of the mixing zone for any discharge, the followingmust be considered:(1) the character of the body of water,(2) the present and anticipated future use of the body of water,(3) the present and anticipated water quality of the body of water,(4) the effect of the discharge on the present and anticipatedfuture water quality,(5) the dilution ratio, and(6) the nature of the contaminant.In addition to the above, for water designated for aquatic life (GeneralStandard), the mixing zone shall be so designed as to assure a reasonablezone of passage for aquatic life in which the water quality standards aremet. The mixing zone shall not intersect any area of any such waters insuch a manner that the maintenance of aquatic life in the body of wateras a whole would be adversely affected."5.1.2.3 ACCEPTANCE OF STANDARDS BY EPAThe Illinois Standards entitled "Water Pollution Regulations of Illinois"have, as pertaining to the Kankakee River, been approved by the FederalEnvironmental Protection Agency in full.(2a)M.R.25.1-5 7/73 5.1.2.4 EVALUATION OF COMPLIANCE WITH THERMAL STANDARDSOperation of the Braidwood cooling lake will be in compliance with eachof these rules as follows:(1) The effects on aquatic life of the temperature perturbationsalready discussed are treated in detail in Section 5.1.3.Based on the material contained in that Section, it is con-cluded that the requirements of Paragraph (1) will be met.(2) The seasonal variations of temperature in the Kankakee Rivercover a range from 33.50F in December to about 79.5°F inAugust, for a total change of 46 Fahrenheit degress (Table 5.1-1).The lake temperature is governed by the same meteorologicalconditions and varies by about the same amount and in about thesame phase. The lowest blowdown temperature of 550F occurs inJanuary and the highest temperature of 91gF occurs in July andAugust, with a total change of 360F. Thus similar seasonaltemperature changes occur even inside the plume mixing zone.As seen from Table 5.1-1, the fully-mixed temperature excesscaused by the blowdown is never more than O.01F which isnegligible. It is expected that short term daily variationsin temperature will also be of similar magnitude for the lakeand the river, responding in like fashion to changes in solorenergy impact and atmospheric conditions. It is thus concludedthat normal plant operation is in compliance with their rule.(3) The limit of 50F above natural temperatures, as interpretedaccording to Rule 201, applies to all regions outside a mixingzone of area 25.95 acres (the area of a 600-foot circle).Referring to Table 5.l-la,the largest area within the 50Fisotherm (for the month of December) is only 0.45 acres.Thus this rule is satisfied with ample margin of safety.M.R.25.1-6 7/73 As may be seen from Table 5.1-1, the fully mixed temperature, asmay occur for downstream of this discharge, is always less than0.01F above ambient temperature. This results in part from avery large overall dilution ratio.As noted in Section 5.1.1, the mixing zone is narrow comparedto the width of the river and will not present a barrier tothe passage of aquatic life.(4) The plume temperature distributions discussed above apply toaverage or normal river and operating conditions. The upperlimits on discharge temperatures of 90°F in summer and 60°Fin winter (Table 5.1-2) are not to be exceeded outside a 26acre mixing zone more than 1% of any continuous 12 monthperiod.As may be seen from Table 5.1-1 the most limiting time of theyear, with regard to this rule, is August. It is during thismonth that the average river temperature is highest (79.5*F) andthis temperature approaches closest to the upper limit listedin Table 5.1-2. The effluent temperature (91gF) is the highestrelative to the upper limit and the river flow available fordilution is the lowest (1409 cfs).Under these average conditions, a temperature increase of 1l.50Fis allowable before the 90OF limit (Table 5.1-2) at representa-tive locations in the main river is reached. As shown inTable 5.1-la,the area occupied by the 10OF isotherm is esti-mated to be only 0.01 acres. Hence, the region of the riversubjected to this level of temperature rise above ambient issufficiently localized that representative locations in the mainriver will fall well below the 90OF limit. The small area ofthe 10'F isotherm (0.01 acres) with respect to the allowableM.R.25.1-7 7/73 mixing zone (26 acres) also implies a large margin availableto accomodate transient conditions leading to higher rivertemperature. Compliance with thermal standards will beensured by thermal monitoring of the discharge area as des-cribed in Section 6.2.3.(5) A continuing monitoring program will be conducted to verifythe favorable predictions discussed in this report (seeSection 6.2.3). No difficulty is anticipated in providingthe proof required by Paragraph (5).(6) It is planned that all required records will be kept and thatall required studies will be conducted.(7) Edison intends to comply with established regulations.5.1.3 EFFECTS OF HEATED PLUME ON AQUATIC LIFE IN THE KANKAKEE RIVERTemperature affects all organisms. Temperature not only defines thedistribution of organisms, it is an important controlling factor inreproduction and growth. The range of temperatures at which life canexist is enormous, however, most animals are confined to a range of32°F to 1040F,(3) and even then not all species can survive the entirerange of these temperatures and their range of survival temperatures isstill smaller. This small, well-defined temperature range for eachspecies can be further divided into sub-components. For example, anadult of an aquatic species may survive at temperatures of 35-90gF butmay spawn only between 40-50°F. Similarly, the eggs may develop onlyat temperatures of 45-550F. Since the success of a species is obviouslydependent on the completion of all phases of the life cycle, failureof any one phase will result in unsuccessful completion of the lifeM.R.25.1-8 7/73 cycle. An examination of the temperatures at which an animal candevelop should therefore focus on the particular phase of the life cycle(spawning, egg or larval development, etc.) which is the least resistantto thermal alteration of its normal temperature regime. Regrettably,this type of information is exceedingly sparse and the complete thermalrequirements are known for very few organisms.5.1.3.1 FISHThe thermal effects of blowdown discharge upon Kankakee River fish wereanalyzed for July-August conditions. In August, the average riverwater temperature is highest (79.5°F)(4) and in July and August the averagetemperature of the lake blowdown is at its maximum (91*F) in Table 6.2-la.The major conclusion of the analyses, discussed in the following sections,is that the fish in the Kankakee River would not seriously be jeopar-dized by the thermal effluent from Braidwood Lake. This conclusion isbased upon two observations: (1) the temperature which fish prefer isdependent upon the previous acclimation temperature, i.e. their previousthermal history, and (2) fish exposed to high temperatures would beexpected to move away to lower temperature regions.5.1.3.1.1 THERMAL EFFECTSThe effects of temperature have been reported for several of the morecommon species of fish collected at the Braidwood Site (See Section2.7.:2.2.5). Lethal temperatures were determined in cases where previousacclimation temperature was known. Preferred and spawning temperaturesare also shown (Table 5.1-3). The results from several experiments havebeen reported for some of the species. Differences in lethal temperaturesfor similar acclimation temperatures may occur because differentexperimenters conducted the research under different laboratory conditionsor used different criteria for determining "lethality".M.R.25.1-9 7/73 Supplement 2Data in Table 5.1-3 suggest that, under August blowdown conditions(91°F), fish would be at lethal temperatures if acclimated at45°-50*F. For example, white suckers acclimated at 45°F have an LD50 (thetemperature which is lethal to 50 percent of a test group of organismsin a 24-hour period) of 86°F. Channel catfish acclimated at 45°Fhave an LD50 at 91°F; Bluegill acclimated at 45°F have an LD50 at89°F, etc. However, the data in the table also suggest that, at leastto a point, as acclimation temperature increases, so does the temperatureat which fish die. For example (Table 5.1-3), carp acclimated at 50°F J2have a "lethal" temperature (where some fish are observed to die in a24-hour period) of 63°F. Acclimation at 77*F raises the lethaltemperature to 88'F. Acclimation temperature acts in a similar fashion j2upon preferred temperatures. Thus carp (Table 5.1-4) acclimated at50°F, offered a gradient of temperatures, preferred 61.3°F ; thoseacclimate at 770F preferred 87.8°F. These data also suggest thatpreferred temperatures may be very close to lethal temperatures and onlysmall increments of temperature change are necessary to make the trans-formation.At Braidwood, under August blowdown condition, the acclimation temperaturewould be that of the ambient river water which is 770F. The temperaturesat which fish might experience mortality (travelling into the heatedplume from the ambient river) would thus be higher, relative to thosetemperatures cited in Table 5.1-3 when fish were acclimated to 450F.Bluegill acclimated at 76-79°F have lethal temperatures of 98-1030F. Thesetemperatures would never be experienced within the heated plume. Rock Bassacclimated at 751F have lethal temperatures of 98-100'F. Channel catfishacclimated at 720F had a lethal temperature of 950F. No information isavailable concerning lethal temperature for smallmouth bass or for blackcrappie and white sucker with acclimation temperatures near 77°F. Data forcarp (Table 5.1-3) show that lethal temperatures vary from 88-96°F foracclimation temperatures of 77-790F.The results of a previous study indicate that fish will avoid highM.R.25.1-10 7/731/74 temperatures if given a selection of temperatures with a wide range.In a study of the behavioral thermo regulation of various species ofgamefish at a power plant on Lake Monona, Wisconsin, (8) it was foundthat certain species of'fish avoided the thermal discharge area altogetherin which extreme temperatures reached as high as 95°F. Several otherspecies were positioned in the outfall area relative to certaintemperatures. It appeared from the study, that fishes were distributedwithin the outfall area according to their different temperaturepreferences.IPreferred temperatures presented in.Table 5.1-3 were also derived fromexperiments or from field observations in which a range of temperatureswere available to the fish. Without exception, all of the preferredtemperatures reported in Table 5.1-3 are below the August blowdown temp-erature of 91'F. On the basis of this data and on the results ofthe thermo regulation study cited earlier, it is expected that within theplume at Braidwood, fish would remain in or near their preferred temp-eratures. If the temperature at the discharge were above the preferredtemperature, it would be expected that they would move out of the plumeinto cooler waters.5.1.3.1.2 SPAWNINGSome spawning temperature data was available for all fish species inTable 5.1-3 except the white sucker. Some species (smallmouth bass,channel catfish, black crappie, bluegill and rock bass) build well-defined nests (Table 5.1-5) while others (carp, sucker) scatter eggsover sand, gravel or over beds of aquatic plants. The fish completemost spawning in the spring or early summer from April to June.Temperatures at the lake blowdown during those months would vary from680F. in April, 780F. in May, to 860F. in June. Temperatures of 680F.in April would probably be favorable for spawning of carp, rock bassand possibly smallmouth bass and black crappie (Table 5.1-3). DischargeMR.25.1-11 7/73 Supplement 2temperatures of 780F in May would probably not be detrimental to thespawning of channel catfish or bluegill. However, those temperaturescaused by the June blowdown (860F) may, with the exception of the channelcatfish, .be too high to allow fish to spawn within those higher temper-ature areas. The exclusion of spawning fish from the area affected bythe warmer temperatures of the thermal plume is not considered criticalto the over-all success of fish spawning. A survey of potential spawninggrounds in tile Kankakee Ri.vewr in the. vicinity of the Braidwood AquaticStudy area indicated that the area immediately downstream to the dischargeis not unique in regards to spawning, and that spawning probably occursalong both sides of the river both up and downstream relative to thelocation of the proposed discharge. A discussion of the spawning surveyis contained in Section 14.1 (Appendix I). Actual sighting of fish nests 2could not be accomplished because of poor visibility.Entrainment of fish eggs and larvae in the heated plume during July andAugust when temperatures are highest is not expected to be a seriousproblem. The reasons for this are: (1) the short time of entrainmentin the plume (if entrained); (2) the observation that most of the majorfish at Braidwood either lay adhesive eggs in well-defined nests orscatter semi-buoyant eggs over the bottom. Fish eggs, then, would notpredominate in the plankton and few would be entrained and (3) by Julyand August, many of the young fish would have developed to an activelyswimming stage and thus might be better capable of avoiding a heated plume.5.1.3.1.3 MIGRATIONThe thermal plume in to the Kankakee River is not expected to interferewith the migration or movement of Kankakee River fish. Not more than 33percent of the width of the river will be within the plume (Figures 6.2-3and 6.2-4), leaving a considerable width for migration of fish. Thosefish which do encounter the plume would be expected to swim around orunder it if temperatures are too high.M.R.27/735.1-12 1/74 5.1.3.2 BENTHOSBenthic organisms are considered to be excellent indicators of environ-mental changes because of their relatively long life cycle and immobility.The crayfish, Orconectes propinquus, is a common food item in the dietof several of the fish at Braidwood (Section 2.7.2.5). Experiments onOrconectes rusticus, a closely related species, showed that crayfishcollected in the field at temperatures of 70-79gF lived for-at leastten days at 95*F, but for not more than 6 hours at 98.6°F.(5) Anotherspecies of crayfish, Faxonella clypeata (not found at Braidwood) couldtolerate temperatures of 97.8°F for 12 hours before some died. Thesecrayfish were reported to show a decrease in the thermal threshold whenwinter populations of crayfish were studied.(g)Caddis flies (Hydropsyche, Cheumatopsyche) and mayflies (Potomanthus,Stenenema, Tricorythodes) formed a large portion of the macroinverte-brates collected at the downstream station in the area of the proposeddischarge at Braidwood. Several studies have been made of insectpopulations living in waters as warm as 106.50F.(01) In a study ofseveral species of mayflies and stoneflies which normally preferredcooler water, addition of heated water from a power plant caused nodetectable mortality.(ll) The temperature in the river ranged from320F to 770F. Walshe's work(12) on 7 species of larval midge flies showsa range of LD50 from 850F to 1020F.Stangenborg and Pawlaczyk(13) found benthic invertebrates decreased innumber when the water temperature exceeded 86°F. Invertebrate biomasswas reduced in the summer in the Delaware River when heated water reachedtemperatures of 950F.(14) Wurtz and Renn(15) studied the composition ofbenthic invertebrate populations and their response to sustained hightemperatures. Persistent exposure to 95°F over 24 hours brought aboutchanges in the composition.No effect of the thermal plume on the benthos in the Kankakee River isM.R.25.1-13 7/73 Supplement 2expected outside of the warmer mixing zone. Within the mixing zone,three cases must be considered: (1) the effect of plant startup;(2) the effect of normal plant operations; and (3) the effect of plantshutdown, discussed in Section 5.1.5.The startup of the plant will occur in a stepwise manner (Figure 4.1-1),the first unit to precede the second by approximately 12-14 months.Startup of each of the units is expected to produce a gradual increasein temperature within the mixing zone. Blowdown of heated lake effluentfrom the first unit will not be discharged to the Kankakee River untilabout 12 days after startup. The temperature of the blowdown will notbe as great as those listed in Table 5.1-1 due to additional coolingwhich will occur during the extended time for passage from the plantoutlet to lake discharge; normal passage time is 3.9 days. 4L5.1.3.3 PHYTOPLANKTONThe thermal effluent from Braidwood Lake is expected to have littleeffect upon phytoplankton in the Kankakee River, a consequence of the ex-pected relatively short exposure time to heated effluents and the relativelyj2M.R.25.1-14 7/731/74 Supplement 2low increase in water temperature. Entrainment time was calculatedfor the month of August, when the average monthly river flow rate (16)is lowest (Table 2.5-2) and the average monthly lake blowdown temper-ature highest (Table 3.4-2). Combined, these conditions represent themost severe exposure of Kankakee River plankton to the thermal plume. 2The entrainment time was estimated to be 1 minute.The model used for the calculation considers that plankton mixes withthe blowdown at the discharge point and remains within the thermalplume to the farthermost limit of the 5 degree isotherm, about 700 feet j2(Figures 6.2-3 and 6.2-4). The river velocity used in the calculationwas derived from nearshore measurements at Transect 3. The measuredvalues, reduced in proportion to the U.S.G.S. actual river flow rateson the measurement days, gave the estimated average August nearshoreflow rate of 1.2 fps.15.1.3.4 PERIPHYTONThe thermal plume is expected to influence the periphyton population(Section 2.7.2.2.2) of the Kankakee River but only in the vicinity ofthe discharge-point. At Connecticut Yankee, a study revealed(17) anoticeable shift in periphyton populations from diatoms to blue-greenalgae in the area of the discharge. The changes were confined to themixing zone.5.1.3.5 ZOOPLANKTONCrustaceans predominated many of the collections of zooplankton madeduring the Braidwood Aquatic Study (Section 2.7.2.2.3). Cyclops,Eucyclops ( a cladoceran) were among the most common of the crustaceanscollected. Experiments indicate a lethal temperature for Cyclopsquadricornis of 970F. Lethal temperatures for various species ofDaphnia ( a species of cladocera similar to Bosminia) range from 860M.R.25.1-15 7/731/74 (long-range exposure) to lll°F (death occurred within 1 minute).(18)In view of the brief exposure (13 minutes) of the zooplankton totemperatures within the heated plume above 86*F., significant thermalimpact will occur.5.1.3.6 MACROPHYTESMacrophytes are present along the river's edge within the thermal plume.No specific temperature data are available for the seven species noted inthe macrophyten study (Scurpus and Hibiscus) in Section 2.7.2.2.5.Growth of these plants is largely controlled by temperature and macrophytesnormally begin to grow along the banks of rivers in the spring. It isquite likely that the warmer temperatures present in the discharge areawould allow these plants to begin growth earlier in the spring than isnormally possible.5.1.4 EFFECT OF THERMAL EFFLUENT ON AQUATIC LIFE IN BRAIDWOOD LAKE5.1.4.1 BEFORE PLANT OPERATIONWater for establishing Braidwood Lake will be withdrawn from the KankakeeRiver; the maximum volume to be withdrawn in any month will not exceed10% of the low-flow river volume (Table 2.5-2) of that month.Intake screens will exclude most large river fish from the lake but notsmaller fish or other organisms. Water used for filling the lake andlater, for makeup, is expected to include components of the ecologicalcommunity such as:(1) protozoa -flagellates, ciliates.(2) bacteria.(3) phytoplankton -green algae, blue-green algae, diatoms.M.R.25.1-16 7/73 Supplement 2(4) zooplankton -copepods, amphipods, ostracods,cladocerans, rotifers, gastrotrichs.(5) benthic invertebrates -larval and nymphal insectsundergoing-stream "drift" such as mayflies, caddisflies, stoneflies -flatworms such as Dugesia,nematodes, annel i ds.(6) larval (glochidea) and egg stages of bivalve mollusks,larval crustacea, eggs of gastropods.(7) a few fish eggs and larvae.These organisms from the Kankakee River eventually would be expected toform an ecological community in the cooling lake. However, it is notexpected that a community would develop immediately nor can it bepredicted how extensive it would be before operation of the plant.5.1.4.2 AFTER PLANT OPERATIONAny ecological community which exists in Braidwood Lake will undergocertain changes after the power plant begins operating and heated wateris discharged to the lake. In addition, transit of organisms throughthe condenser cooling system of the plant will expose them to certainstresses such as: (1) high temperatures and (2) mechanical forces dueto passage through the condenser cooling pumps.5.1.4.2.1 AQUATIC ORGANISMS TRANSPORTED THROUGH THE PLANTOrganisms contained in the condenser cooling water will experience thegreatest stresses as a consequence of transit through both the plant andthe cooling lake during the summer months when the water temperaturesare highest. The combined mechanical and thermal stresses occurring inthe plant will occur during the approximately 12.3 seconds required for 2the cooling water to pass through the condenser. Thermal stresses inthe cooling lake, however, will ocour over a much longer time than inM.R.27/735.1-17 1/74 Supplement 2the plant because of the long time required for the heated water to cool(Table 5.1-6) and the exposure period to excessively high temperatureswill be hours, not minutes. Exposures exceeding 900F are expected tooccur during May, June, July, August, September and October.The cooling times given in Table 5.1-6 were calculated from a model whichconsiders the average time for a slug of plant discharge water to make acomplete trip around the lake. The computer program used in the tran-sient lake performance evaluation is a one-dimensional heat-and-massbalance model, i.e., the temperature distribution in the lake does nothave a vertical gradient from the surface to the bottom of the lake, andalso no temperature gradient at any cross-section perpendicular to thedirection of flow. The lake is assumed to be represented by a long plug 2flow channel which has a rectangular cross-section with a constant depthfrom plant discharge to plant intake. Weather conditions used for thelake performance are taken from the historical records of a major weatherstation near the plant site. These weather data are stored on tape andare read by the program. The model also considers the fraction of thelake within particular isotherms. The lake average recycle time (T) isobtained from:VT = (dA/dt)where V is the volume of the lake water, obtained from a surface area of2640 acres and an average depth of 9.5 feet. The plant discharge rate, 12dA/dt, is that from the two nuclear units and is 3250 cfs. The resultantaverage recycle time is 3.9 days. The time for the water to cool to the 12temperatures indicated in Table 5.1-6 is obtained from:x lake area within desired isothermtotal lake areaThe simplified model used to estimate the time required for a "slug" ofhot water to cool down following discharge from the condenser coolingsystem into the cooling lake was derived from the lake thermal analysis 2described in Section 3.4 and Section 6.2.3. Hence, the same basicassumptions discussed therein that led to the lake temperatures presentedin Figure 3.4-5 and Table 5.1-7a constitute the ultimate bases behind theM.R.27/735.1-18 1/74 Supplement 2cooling-time analysis. The area ratio approach to obtaining coolingtime was chosen because the lake thermal analysis (Figure 3.4-5) assumes 2a constant temperature perpendicular to the direction of flow. Studiesindicate that blue-green algae are able to withstand exposure to highertemperatures, and that green algae are more tolerant than diatoms. Ingeneral, blue-green algae have more species which prefer temperatures of95°F and higher, whereas the green algae have a relatively large numberof species that grow best in temperatures ranging up to 950F. Most ofthe diatom species prefer temperatures below 85°F.(19) These commentsrefer, however, to the temperatures at which these organisms can survivefor long periods of time. Little is known about the temperature "shock"from cooling system transit and the mortality incurred by such transit.Miquel,(20) in a series of experiments on mixed algal cultures, foundthat at 980F, all "large" diatom species were killed but some "smaller"species persisted. At 1070F, some green algae were still alive.M.R.25.1-18A 7/731/74 Several studies have been conduted to show that productivity (theamount of inorganic carbon fixed by the plant into organic carbon perunit time) may either be increased or decreased by the heated water,depending on the season.While phytoplankton may survive passage through the cooling systemduring January, February, March, November and December (maximumtemperatures reach about 850F at the condenser), greater mortalityis expected during the other months of the year. Diatom species ofCocconeis, Navicula and Nitzschia are normally found in cooler watersof 50-98°F. Maximum growth for Nitzschia filiformis and N. linerarisis between 72-79°F. Growth for these species is reduced or inhibitedat 86-99°F. The green algae, Euglena, has an upper lethal temperatureof 98-111°F (depending on the species). Some species of Oscillatoria(a blue-green algae) are found at temperatures as high as 116°F.Generally, it would be expected that most diatoms would not survive thecooling system transit. However, at least some of the more heat toler-ant green and blue-green algae would be expected to survive the passage.The impact of cooling system transit on zooplankton may be considerablymore severe. For example, in a study of zooplankton passing througha power plant cooling system, no organisms were alive when temperaturesreached 98°F.(21) In another experiment of a similar design, 17-19percent of copepods and cladocerans were dead with temperatures of 77°F(ambient temperature was 590F).(22) Another study of zooplankton duringthe summer showed that nearly all zooplankton species were reduced innumber when temperatures reached 100F.(23) Preliminary studies atTurkey Point in Biscayne Bay showed that 80 percent of the zooplanktonwere dead at discharge temperatures of 104*F.(24) Temperature criteriafor individual species have already been indicated in Section 5.1.3.4.From these data, it is concluded that, at least during the warmer monthsof the year, no zooplankton would be expected to survive the coolinglake transit.M.R.25.1-19 7/73 Few fish eggs should be drawn into the intake at Braidwood Lake and,consequently, into the nearby plant intake. With the exception of thecarp and sucker, all of the common fish at Braidwood lay adhesive eggsin well-defined nests. This type of eggs is not normally a constituentof the plankton. The eggs of the carp and sucker, while not placed innests, are non-buoyant and would also not be considered a normal partof the plankton.5.1.4.2.2 AQUATIC ORGANISMS IN BRAIDWOOD LAKEField observations have shown that biological communities can grow andincrease in numbers in cooling lakes(25) which reach temperatures ashigh as 1070F. In a recent study(26) of a cooling lake at the Dresdenpower plant complex (a plant located near the confluence of the Illinoisand Kankakee Rivers which draws water from the Kankakee River), sixteenspecies of fish were collected. The greatest diversity of fish wereobserved near the condenser discharge where temperatures were about97-98OF when sampling was conducted. The most common species werelargemouth bass, sunfish, carp, goldfish and gizzard shad. All of thesefish are typical of warmer waters.At Dresden, benthic invertebrates were uncommon, a fact which may beattributable to the relatively short interval between fill-up of thelake and the field observations (about 9'months). The distribution ofbenthic organisms is influenced greatly by bottom sediment types andthere may not have been sufficient time for the bottom to "age". Inthe Dresden study, numerous species of diatoms, green and blue-greenalgae were also collected. The greatest number of algae occurred atthe cooler end of the lake.It is an unexpected observation that, in the Dresden Lake study, greaterfish diversity occurred in the higher temperatures of the lake. It maybe that fish move into these warmer areas primarily to feed, especiallyM.R.25.1-20 7/73 if zooplankton and phytoplankton are killed by transiting the coolingwater system. The study on the thermo regulation of fish in the area ofthe heated effluent from a power plant showed that, while some species offish tended to remain in specific areas of temperature preferences, theywould move into very high temperature regions to feed.(5)The average temperature in the Braidwood Lake is expected to be as highas lll*F at the condenser end and 91°F at the far end in the summer. InJanuary, the average temperature will be 740F at the condenser and 55°Fat the far end of the lake. Thus, the temperature range experienced atthe far end of the lake, 55°-91°F, is far more compatible with the thermalpreferences of most organisms and biological communities that may beexpected to develop. During the warmer months of the year, plankton maynot be important ecosystem components but may add energetically to thesystem if they are killed upon passage through the cooling system andmade available as food to other organisms in the lake.The fish species which might develop in the lake would be expected to besimilar to the Dresden Lake, since it also is supplied water from theKankakee River. Based upon the relationships between acclimation temp-erature and preferred temperature (Section 5.1.3.1), it would be expectedthat fish would tend to move toward the warmer end of the lake in thecolder months of the year. Fish will move away from this end in thesummer months when the plant outlet water is too warm, but, as in theDresden Lake, might be expected to be found at temperatures as high as97-98°F.In the colder months, planktonic species would be expected to thrive bestat the plant outlet end of Braidwood Lake, but not in the summer monthswhen the temperature in this area will be too high.It is unlikely that benthic invertebrates would contribute substantiallyto the energetics of the ecosystem until the bottom community is welldeveloped. This would not occur to any extent before several years.M.R.25.1-21 7/73 Supplement 2s.1ince the cooling lake is expected to attract some migratory waterfowl,.the possible nutrient contribution to the lake community energetics asa result of this indirect effect should be considered.In comparison to the estimated 95 days/acre/year waterfowl use at theproposed Braidwood cooling lake (Section 2.7.1.7.5), the LakeChautauqua National Wildlife Refuge near Havana, Illinois, has had anIaverage waterfowl day use in the years 1968-1972, of 1900 per acreyear.(26a) Although no current studies have been conducted at LakeChautauqua, it was estimated in 1954 and 1955 that waterfowl added thefollowing amount of nutrients to the lake per acre each year: 12.8pounds of nitrogen, 17.1 pounds of total phosphate, of which 8.1 poundsis soluble.(26b)During 1954'and 1955, the waterfowl use at Lake Chautauqua amounted to2200 duck days per acre per year. (26b) The Braidwood lake usage is abou't4 percent of this value. It is, therefore, projected that waterfowluse of the Braidwood cooling lake would add per acre year: 0.51 poundsof nitrogen and 0.68 pounds of phosphate, of which 0.32 pounds would besoluble.It is concluded that nutrients added to the Braidwood cooling lake andblowdown to the Kankakee River would be negligible.5.1.4.2.3 Predictive Lake EcologyAnalyses and expected cooling lake ecological characteristics have beenidentified in Sections 2.5, 2.7, 4.1,'5.1, and 6.1. The following is asummary of those analyses and expected characteristics. 2A study was conducted to identify problems associated with lake waterchemistry. The objectives of the study were:1. To classify the mine spoils into soil types and collectsamples for analysis from selected areas to represent eachsoil type. M.R.25.1-22 71731/74 Supplement 22. To analyze typical soil samples to determine theirleaching characteristics.3. To predict the water chemistry of the cooling lake.4. Determine if areas exist that require special treatmentor isolation to prevent undesirable contamination of thecooling lake water.The representative areas of the site are shown in Figure 5.1-1. Pro-files were sampled at the points shown on Figure 2.5-ld at four inchintervals to at least one foot in depth and each sample was describedas to soil texture and color. Soil pH and electrical conductivity testswere conducted. An approximate 1:1 soil-water ratio was used for thesoil pH test. Specific conductivity (EC) was determined on the super-natant liquid from the same samples prepared for pH analysis. Watersamples were collected near the location where a soil sample was taken.Each water sample was analyzed for pH and salt concentration.The conclusions of the initial survey were that the original soil and 2rock profile was similar over the entire area that had been strip mined.Several different methods of mining have been used and this is a defi-nite factor affecting the residual mixture of sand and shale. Oldermined spoils have been converted into soil as weathering and revegeta-tion of spoils continue. Profiles are most evident in stabilized areaswhere erosion is minimized. The observations show that a well-established vegetative soil cover will assist in making these minespoils a desirable and more efficient cooling lake by reducing therate of rain runoff and erosion of soil into the lake.Over a period of several years, evaporation of water has probably hada significant influence on increasing the dissolved salt content in thestagnant pools. However, newly formed ponds from recent rain have arelatively low salt content. Waters from ponds in the oldest minedsection, the northeastern part of mine area 11 has the lowest saltconcentration among the existing established bodies of water. Thecombination of many years of leaching and established vegetation has5.1-22A9/II/ /I+ Supplement 2allowed a reduction of salt in the impounded water in mine area 11.When the proposed area is developed into a cooling lake, the volume ofwater utilized is expected to reduce the soluble salt concentrationsubstantially below its present concentration in existing bodies ofwater.Intermediate SurveyA laboratory procedure was developed to obtain saturated soil extractsfrom reduced soils because the soil will be submerged and subjectedto a reduced condition. Soil samples were taken from the initial fieldsurvey location but each profile was divided into two depths: zero tosix inches, and six to twelve inches. Saturated solid extracts wereobtained and the quantity of each soil constituent leached from the soilis expressed as a percent of the total of that constituent in the soil.This ratio is used to calculate the amount of mineral extracted.A breakdown of leached soil components is shown on Tables 2.5-3a and2.5-3b. To estimate the quantity of soil constituents in the cooling 2lake, three factors are considered: (1) the average quantity of thechemical constituent in the make-up water in the vicinity of the intakelocation from the Kankakee River, (2) the amount of leached soil con-stituents in cooling lake water and (3) the concentration of salts dueto' evaporation of water from the lake. Table-2.5-3c describes theestimate of cooling lake water quality using these three factors.According to the results of the baseline aquatic monitoring survey,no significant differences in turbidity can be shown to exist among thethree Kankakee River transects. The turbidity at the intake locationis not unusual and exhibits, along with other transects studies, aseasonal range in turbidity. The greatest seasonal range in turbidityvalues for the river occurred in the spring, seemingly as a result ofthe variable and elevated river flows at these time periods. Thesmallest range occurred in the summer period, probably in response tothe relatively stable river flows. No serious problem with turbidityis expected to result from the use of Kankakee River water for5.1-22B1/74 Supplement 2Braidwood Lake. Dresden Lake, part of the cooling system for DresdenNuclear Station, was filled using Kankakee River water and no seriousproblem has resulted in this regard.According to the results of the baseline aquatic monitoring survey, atall sampling periods the dissolved oxygen concentrations were abovethe minimum standard (5.0 mg/l) set by the State of Illinois. Thephysical data obtained from Dresden Lake shows dissolved oxygen concen-trations above the minimum standard set by the State of Illinois. Noevidence of low dissolved oxygen has been attained in the studies atDresden Lake.Based upon the nutrient loading anticipated for this lake and experiencewith other lake reservoirs, e.g. Sangchris Lake, Dresden Lake, PowertonLake, no significant depletion of oxygen is anticipated in BraidwoodLake.The total number of coliforms in the Kankakee River reaches its highestlevel during January, June and September. Fecal coliforms in the riverfollowed a similar seasonal pattern. Results of the baseline programshow that 50 percent of the samples from the Kankakee River exceededfecal coliform standards of the State of Illinois and correspondingly23 percent exceeded the Federal guidelines for fecal coliform. Resultsalso show that 30 percent of the river samples exceeded Federal guide-lines for total coliform. While state and federal guidelines wereexceeded on occasions, the values do not approach the concentrationsof fecal coliforms found in the 1970-1971 Des Plaines-Kankakee Studywhere fecal coliforms reached 20,000 per 100 milliliters.The bacterial quality of the Braidwood Lake will be similar to that ofthe Kankakee River. A reduction of coliform organisms may be antici-pated since (1) there is no additional source of sewage in the lake and(2) the lake will act as a buffer to further reduce the sewage indicatororganisms from the Kankakee River.5.1-22C1/74 Supplement 2The phosphorus level will exceed the threshold that might be expectedto produce a nuisance condition (0.01 milligram per liter); nitrogenlevels for such a condition (0.30 milligram per liter) will also beexceeded.(30) The levels have been described in pages 2.5-7 and 2.5-8.Data from Dresden Lake indicates that it contains a higher concentrationof phosphorous and nitrogen than Braidwood Lake is expected to containand no algal blooms have been experienced in Dresden Lake, thereforeblooms are not anticipated for Braidwood Lake.Studies at Sangchris Lake have shown that less than 1% of the ffshexhibit external diseases. Additionally, in Diseases of Fish and theirPotential Incidence in Thermally Enriched Ecosystems, by Limnetics,Inc., it is concluded that on the basis of evidence from actual field 2studies, there is no evidence to suggest that the incidence of diseasedfish in artificial cooling lakes is greater than the incidence innatural water. The development of fish diseases in Braidwood Lake isnot anticipated, based on this and operational experience at DresdenLake.There is no reason to expect that the reservoir has a potential forwaterfowl and wildlife diseases. The studies at Dresden, Sangchris andPowerton Lakes have not exhibited any potential for waterfowl and wild-life diseases.The studies at Dresden, Sangchris and Powerton Lakes have not exhibitedany operational problems with mosquito larvae or other pests. Thereis no reason to expect that the Braidwood Lake has a potential forproblems with mosquito larvae or other pests.5.1-22D1/74 Supplement 25.1.5 PLANT SHUTDOWNAlthough the specific schedule for plant shutdowns for refueling opera-tions is unknown, it is anticipated that refueling of each nuclear unitwill occur every 12 months. Only one unit at a time will be shut down.It is anticipated that a shutdown will occur every six months; the dura-tion of each will be approximately one month.When one of the units is shut down, the flow of condenser cooling waterfrom that unit will stop and thereby reduce the total flow of coolingwater in Braidwood Lake to one-half the normal value. Reduction of theflow rate causes an increase in the time for traveling from the plantoutlet to the lake discharge from 3.9 days to 7.8 days. During this J2period, the temperature of the blowdown into the Kankakee River willgradually decrease, a consequence of the additional cooling occurringduring the increased time required for plant outlet water to reach thelake discharge.The gradual reduction in temperature of the blowdown will occur over along enough period, approximately 7.8 dhys, that no significant thermal j2cold shock to organisms in the Kankakee River is expected.5.1.6 EFFECTS OF RIVER INTAKE AND DISCHARGE STRUCTURESThe intake structure will consist of two 14-foot wide channels with thebottom elevated 8.5 feet below normal river level. Intake water velocityfor 2 units is about 0.5 fps.A vertical traveling screen will be constructed at the intake for makeupwater from the Kankakee River. Fish and other debris collected fromthe traveling screens will be disposed of by a commercial scavengerservice.Braidwood I and 2 will discharge its blowdown into the Kankakee-Riverthrough an open-channel which will be located approximately 500 feetdownriver of the intake. The width of the outfall will be 15 feet andthe depth 1.45 feet at normal pool stage. The discharge velocity willbe 2 fps. The outfall is placed at an angle to the river and has char-acteristics similar to those shown in Figure 3.4-4. M.R.25.1-23 7/731/74 5.1.6.1 INTAKE SCREEN FISH MORTALITYIntake screen fish mortality is a function of many factors such asintake velocity, intake screen location, fish species and season ofplant operation. Additional unknown factors make quantitative andqualitative predictions of intake screen mortality difficult. However,intake screen mortality data obtained at the Dresden plant (Table 5.1-7)in September of 1972 provides some indication of what can be expectedat Braidwood. The Dresden Plant is located on the Illinois River nearits confluence with the Des Plaines River but the plant intake is locatedon the Kankakee River about 11 miles downstream from Braidwood. Shadwere by far the most numerous fish on the intake screens at Dresden.Shad were also collected upstream at Braidwood but formed a very smallpart of the fish population. The presence of the dam at Wilmingtonprevents upstream migration and therefore, few shad should be entrappedat Braidwood. In addition, the proposed intake velocity of 0.5 fpsat Braidwood is considered to be low enough to avoid serious fish intakescreen mortality.5.1.6.2 SCOURThe Kankakee River bottom in the vicinity of the lake discharge iscomposed of gravel. Most of the high silt load of the river is derivedfrom agricultural activities and does not settle out in the dischargearea but remains suspended due to the higher velocity of the river inthis area, caused by its constriction. The relative shallow discharge(Section 3.4) should cause a minimum of scour and, therefore, a mini-mum of additional turbidity. Any turbidity introduced is expected tobe slight compared to that existing in the river.M.R.25.1-247/73 5.1.6.3 NATURAL CIRCULATION OF THE RIVERThe plant will not influence the natural circulation of the KankakeeRiver because of the.low lake intake and discharge velocities relativeto the total flow of the river.5.1.7 TERRESTRIAL IMPACT OF BRAIDWOOD LAKEThe impact of the heat dissipation system on the terrestrial ecology ofthe area is due to the presence of the lake rather than the operation ofthe cooling condensers. For this reason, the impact of the lake onterrestrial systems is discussed in Section 4.1.4, Effects of Lake Con-struction.M.R.25.1-25 7/73 5.1.8 COOLING LAKE ENVIRONMENTAL IMPACTWater evaporated from the cooling lake into the atmosphere will at timesbe sufficient to saturate the atmosphere and cause fog. The fog that istransported by the wind can be a potential hazard to ground, air andwater transportation, and can become a nuisance to the immediate neigh-borhood. As a means of evaluating the fogging potential, calculationshave been performed to obtain estimates of the ground level concentrationof water vapor at selected distances from the edge of the cooling lake.These values are compared to the ambient moisture saturation values fromwhich the saturation deficit (excess of water vapor concentration abovethat at saturation conditions) to determine the frequency of fog.Evaporation flux from the lake surface was calculated by using the LakeColorado formula(28) and lake temperatures provided in Table 5.1-7a.The effective water surface area of the lake will be 2400 acres sized todissipate 15.65 x l09 Btu/day, the waste heat from two units. Totalmonthly evaporation will vary by a factor of two from winter to summerconditions, being highest in the summer. The total evaporation for themonth of January will be 2.1 x lO7 gal/day and will be about 4.5 x lO7gal/day in the month of August. However, the ability of the atmosphereto hold water increases rapidly as the air temperature increases,resulting in a net decrease in the number of added fog hours betweenwinter and summer conditions.Mathematical models appropriate for use in this analysis are summarizedin Section 6.1.3.2. The source term for water vapor to be used in thediffusion equation is the flux of water vapor times the distance tra-versed over water. Therefore, the source term varies as the fetch ofthe wind across the lake varies. For this 2640 acre lake, maximum fetchof 2.8 miles occurs with winds from 1750 to 3550. The least fetch con-sidered is for a west or east wind, a distance of 1.5 miles.M.R.25.1-26 7/73 Supplement 2The 15-year summary of temperature and humidity statistics for theweather station at Argonne National Laboratory(29) was used to calcu-late frequencies of the saturation deficit. These data are provided 2in Appendix II. IAreas of potential environmental concern due to fogging and icing includethe town of Godley,the switchyards east of the plant and state roads 53and 129 which pass within 2000 feet of the northwest edge of the coolinglake. Table 5.1-8 summarizes the fog frequency at these locations atvarious periods of the years. When a particular wind direction and theassociated wind frequency are considered, the number of fog hours decreasesignificantly. During the winter months with below freezing temperatures,the fog will form hoarfrost and deposit rime ice when coming in contact withvertical surfaces. The switchyards located east of the plant are about2000 feet from the waters' edge and will experience about one-half hourper year of added fog. From the meteorological view point, this amountof added fog is within the normal variability of natural fog and shouldnot be detectable.The town of Godley located about 2000 feet from the northwest corner of thecooling lake is also expected to experience less than one hour of added fogwhich is non-detectable in meteorological terms. The fog is estimated topersist for 10 to 15 minutes during a winter occurrence.Highways 53 and 129 located 0.38 miles from the cooling lake are subject tovery small increases in fogging with a reduction in visibility of about 0.5miles. The calculated values sum to only 0.2 hours per year--an increasethat is not detectable compared to the natural variability of naturallyoccurring fog. Average daily traffic volume along highway 53 near Godleyis 12,000 vehicles. This is about nine vehicles per minute. With inter-mittent fog occurring for an average of 5 minutes, about 40 to 50 vehicleswould notice the brief stretch of fog along the road which is not signifi-cant to reduce visibility to a large extent and-hence is not considered aM.R.25.1-27 7/73T/74 significant impact. Icing potential of highway 53 and 120 is not consideredto increase above the natural frequency of icing occurrence since the numberof hours of excess moisture during the winter months is about 0.15 hours--nine minutes. No airports or navigational streams are within the foggingarea from the cooling lake.Based upon the specific evaluations discussed above, it is concluded thatthe slight increase in atmospheric moisture due to the proposed coolinglake and the resulting fogging or icing are small compared to the naturaloccurrence of fog and ice and will not be a significant nuisance exceptfor some localized effects in the immediate vicinity of the lake.M.R.25.1-28 7/73 Table 5.1-1SUiMMAIRY OIUFTEMPERA\TtIRE CHARACTERISTICS OF THE BRAIDWOOD COOLING LAKEAND THE KANKAKEE RIVER BLOWDOWN(Two nuclear units, 100% load factor)Braidwood LakeTemperature *FPlant Inletand LakeMonth Outlet Blowdown.Jan 74 55.-Feb 75 56Mar 80 60Apr 88 68May 97 78June 106 86July ill 91Aug ill 91.Sept 104 85Oct 96 75Nov 85 65Dec 77 57Kankakee RiverAverageTemperatureOF36.5'33.942.1,," 54.162.170.9' 77.279.5* 69.1,' 60.150.5*,': -33.5AverageFlow rate*cfs3840'53685869737562883196244414091531182321213889FullyMixedTemperatureExcess0.0050.0040.0030.0020.0030.0050.0060.0080.0100.0080.0070.006* Kankakee River at Wilmington, Water Resources Data State of Illinois,1963-1971.IM.R.27/735.1-29 Table 5.1-laESTIMATED ISOTHERM AREAS RESULTING FROM A DISCHARGE INTO THEKANKAKEE RIVER, acresmonth excess isotherms, OF200 150 100 50 40 30 20January 0.01 0.05 0.30 0.47 0.95 2.60February 0.02 0.07 0.29 0.43 0.78 1.94March 0.01 0.04 0.18 0.28 0.48 1.05April 0.01 0.10 0.15 0.26 0.52May 0.02 0.13 0.20 0.35 0.74June 0.03 0.21 0.35 0.65 0.92July 0.02 0.20 0.34 0.75 2.4August 0.01 0.16 0.29 0.59 1.42September 0.05 0.38 0.64 1.38 3.95October 0.05 0.37 0.71 1.64 5.4November 0.03 0.26 0.48 1.03 3.12December 0.01 0.03 0.10 0.45 0.72 1.52 4.58R .R.27/73 Table 5.1-2MAXIMUM RIVER TEMPERATURES AS SPECIFIED BYWATER POLLUTION REGULATIONS OF ILLINOIS*(2)Month Temperature, 'FJanuary 60February 60March --90-- 4April 90May 90June 90July 90August 90September 90October 90November 90December 60* Main river temperatures are temperatures of those portions ofthe river essentially similar to and following the same thermalregime as the temperatures of the main flow of the river.M.R.25.1-31 7/73 Table 5.1-3TEMPERATURE CHARACTERISTICS OF KANKAKEE RIVER FISH(degrees farenheit)Black CrappieBluegillRock BassCarpMortalityAcclimated Lethal PrefE45 *84(15) 83(45 *89(15) 50 *82(28b) 85-8;52 *95(15) 90(59 88(18)68 90(18)70 102(15)76 *98(15)76 99(15)79 *103(15)86 93(18)86 97(28b)45 *85(15) 58-7(52 *87(15) 8175 98-100(15)50 63(15) 6859 77(15) 8168 81(15) 8768 *88-93(15) 9077 88(15)79 96(15)86 90(15)95 90(15)? **l00-102(small carp)** 95-97(large carp).rred8,28a),(28a)7(8):15)Spawni ng58-64 (28a)80 (28)68-72( 15)60-68( 28a))(15)(8)(28a)(15)(8)(15)(Continued)5.1-32 Table 5.1-3(Continued)MortalityAcclimated LethalSpeciesPreferred57-65(15)SpawningWhite sucker41455052596879(15)*86(15)82(15)*88(15)85(15)86(15)No data availableSmallmouth bassChannel catfishNo dataavailable455259727786No dataavailable*91(15)*95(15)*86(28b)95(15)*93(28b)95(15)60_70(28a)68-71 (15)80(28a)55-60(l15)> 6 2a70-85(28a)* Lethal temperatures reported as LD -the temperature which is lethalto 50 percent of a test group of onanisms during a 24 hour trial.Other lethal temperatures refer to the temperature at which mortalityis first observed, usually in a 24-hour period.** The highest temperature which results in death, no matter what thetemperature by acclimation.5.1-33 Table 5.1-4TEMPERATURE CHARACTERISTICS FOR CARP (15)Temperature, OFAcclimationPreferred Average5059687761.375.978.887.8M.R.27/735.1-34 Table 5.1-5SPAWNING HABITS OF SELECTED INDIGENOUS FISH SPECIESOF THE KANKAKEE RIVER(29)CarpWhite Crappie*Rock BassSmallmouth BassSuckerBluegillChannel CatfishScatters eggs over aquatic plantsCircular nest in mud, silt or sandCircular nest in mud, silt or sand-occasionally gravelCircular nest in gravel bottomScatters eggs over sand or gravelCircular nest in mud, silt or sandA tunnel in the bank of the river* Nesting habits are similar to the black crappie.M.R.27/735.1-35 Supplement 2Table 5.1-6ESTIMATED TIME FOR COOLING TO VARIOUSTEMPERATURES IN BRAIDWOOD LAKEMonthJanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecemberAveragePlant CondenserCooling WaterExit Temp., *F7475808897106illill104968577Time for Water toCool to Indicated Temp.,* days850F 90OF 950F 100OF 1050F0.42.0(3.9)(3.9)(3.9)3.91.81.02.7(3.9)(3.9)2.30.90.31.62.72.71.40.10.71.61.60.50.10.70.72*Values in parentheses indicates that the lake water does not cool tothe indicated temperature.5.1-36M.R.27/731/74 Table 5.1-7DRESDEN PLANT INTAKE SCREEN FISH MORTALITY FOR SPECIES ALSO FOUNDAT THE BRAIDWOOD-KANKAKEE RIVER SITENumber ofWater Pumps0e9p+/-*F Operating*Caught on Intake Screen"Time. Shad Blue Gill Pike Sunfish 3malamouth Bass Sucker Carp Catfishhours No. Len. No. Len. No. Len. No. Len. Len_ No_. Len. No. Len. No. Len.U,-aDate9/1/729/8/729/15/729/22/729/29/729/1/729/8/729/15/729/22/729/29/727770696757.6655524241214185163224875765542.53.12.32.72.2I022.02.53.02.0Number Caught Per 24 Hour BasisI002000306.06.040000400002.5I5000I003.06.07606376010410.113.311 .B12.6121020412104058.59.515.07.716670271522166705426293.45.95.46.83.6516322974987736I0221* Pumping rate is 157,000 9pm.** Lengths are average values. in inches.M.R.27/73 0Table 5.1-7aMONTHLY VARIATION IN SURFACE TEMPERATURE PROFILE OF BRAIDWOOD COOLING LAKEEffective AreaFrom Discharge,acres0 (Plant Discharge)240720120016802400 (Plant Inlet)LAKE TEMPERATURE -OF% Area Jan. Feb. Mar. Apr May June July Aug. Sept. Oct. Nov. Dec.0 74 75 80 88 97 106 111 111 104 .96 85 77.10 72 73 77 85 94 102 107 107 101 93 82 7430 67 68 72 80 89 97 102 102 96 88 77 6950 63 64 68 75 85 93 98 98 92 84 73 6570 59 60 65 72 82 90 95 95 88 80 69 62100 55 56 60 68 78 86 91 91 85 76 65 57M.R.200Assumptions:1. 2 -1100 NWe Units2. Effective Area 2400 Acres (Total Area 2640 Acres)3. 100% Load Factor7/73 Table 5.1-8ANTICIPATED FOGGING FROM BRAIDWOOD COOLING LAKECalculated Hours of Fog Discrete LocationsJanuary May August October AnnualHighways 53 & 129(winds from 1650) 0.03 <0.01 0.01 <0.01 0.2Switchyards(winds from SSW-SSE) 0.1 0.01 0.04 0.02 0.6Godley(winds-SE) 0.1 0.01 0.05 0.01 0.7M.R.27/735.1-39 T.32 NIE3 5)CED section linesFigure 5.1-1 Representative Soils in the Lake Area1/745.1-40 6.0 EFFLUENT AND ENVIRONMENTAL MEASUREMENTS AND MONITORING PROGRAMThe purposes of this Section are to describe in detail the means bywhich the Commonwealth Edison Company obtained the baseline datapresented in the earlier Sections and to describe the Company's plansand programs for monitoring pertinent environmental parameters so thatestimates of environmental impacts of site preparation, plant construction,plant operation and plant maintenance can be made.Section 6.1 is addressed to the measurement of "pre-existing" character-istics of the site and the surrounding region. In this context,"pre-existing" refers (at least) to the preoperational state of thesite and the specific environmental effects evaluated are those specifiedby the "Guide to the Preparation of Environmental Reports for NuclearPower Plants" USAEC, August 1972. Section 6.2 deals with specificprograms for monitoring environmental parameters that will providethe data needed in the operational stages for reasonable estimationsof impact. Section 6.3 identifies and reviews related environmentalmeasurement programs that are not directly supported by the applicant.The remainder of the biological program data and evaluation will beM.R.2forwarded by November 15, 1973.6.0-1 7/73 6.1 PREOPERATIONAL ENVIRONMENTAL PROGRAMSPreoperational programs conducted on the site are aimed at describingthe existing characteristics of the surrounding region for the purposeof establishing a baseline for environmental assessment. The specificareas include surface water, ground water, air, land and radiologicalsurveys. The Braidwood aquatic and terrestrial assessment programincorporates measurements of physical, chemical, biological andecological parameters and was initiated in October 1972.6.1.1 SURFACE WATERSThe Braidwood" Site is located southwest of the Kankakee River in thesouthwest-corner of Will County. A 2640 acre cooling lake made by M.R.2diking off a "mined-out" coal strip-mine area will become the primarywater body on the-site when completed.Pre-existing (preoperational or background) aquatic conditions.ofsurface waters in the area chiefly reflect those of the Kankakee River.Water is to be drawn from this stream to fill the lake and later toreplace evaporative and seepage losses from the lake. Backgroundaquatic studies and inventories prior to plant operation, therefore,deal primarily with the Kankakee River. and smaller tributaries of theKankakee and Illinois Rivers in the vicinity of the site.The major emphasis of the aquatic studies will be centered on the KankakeeRiver and Horse Creek where four permanent transects (numbers 2, 3, 4 and5) will be located as follows:(1) Approximately 1.5 miles above the area of proposedintake to the cooling lake(2) In the area ofthe proposed discharge to the river(3) Approximately one mile downstream of the discharge(4) On Horse Creek, 300 feet upstream from the confluenceof Horse Creek.and the Kankakee River.6.1-17/73 Other stations selected for aquatic monitoring are two strip-mine Iponds lying within the boundaries of the cooling lake. M.R.2The locations of the aquatic program monitoring transects and stationsare shown in Figure 6.1-1. A summary of the field data collection pro-gram is shown in Tables 6.1-1 and 6.1-2.6.1.1.1 PHYSICAL AND CHEMICAL MONITORING PROGRAMThe physical and chemical measurements to be made in the Kankakee Riverand Horse Creek are summarized in Table 6.1-1. Samples will be takenat surface, mid and bottom depths whenever possible at each of fivestations along the four permanent river transects. Figure 6.1-1 illus-trates the transect locations.Chemical parameters will be analyzed by Standard Methods authorizedby the American Public Health Association and American Water WorksAssociation. Sample analyses will be made on a regular basis by acompetent laboratory and checked periodically by a second laboratory.The list of routine chemical analyses include those items generallyaccepted by state and federal regulatory bodies as a measure of basicquality of the water and basic biological nutrients.The routine water analyses will be conducted on mid-stream surface.duplicate samples collected at each of the four permanent river transects.In addition, water samples wil.l be analyzed quarterly for heavy metals.These metals include iron, manganese, cobalt, nickel, chromium, mercury,zinc, copper, lead and cadmium as shown in Table 6.1-lbAdditional samples will be taken routinely in two strip-mine ponds (onestation each). Figure 6.1-1 illustrates the station locations. All IM.R.2ponds will be analyzed forsulfides whenever appropriate.6.1-27.73 6.1.1.2 BIOLOGICAL MONITORING PROGRAMThe biological monitoring program in the Kankakee River and Horse Creekis designed to inventory the present aquatic and terrestrial biota ofthe environs. The primary emphasis of the program is to identifyexisting biological conditions of the phytoplankton, zooplankton, fishlarvae, macrophyton,.periphyton, benthic invertebrate and fish communities.The physical and chemical water quality monitoring programs provide datato assist in biological interpretation.Sampling transects and methods are consistent at all locations to allowcomparative analyses to be made. The locations of these transects areshown in Figure 6.1-1.Ecosystems always consist of a number of interacting biological communitieswhich are composed of a group of different species. Each of the specieshas different patterns of reproduction and population growth. They formfood chains or webs with other species by their mutual dependency onother species for food.In order to clearly establish the comparison of the existing ecosystemand its primary or most important species it is necessary to monitorall major groups of organisms through a period of at least one year.Monitoring through four seasons provides information on seasonal variationand the natural patterns and functioning of the food web.The sampling program for the Kankakee River and Horse Creek is summarizedin Table 6.1-2 and a summary of the methodology to evaluate the biologicalsamples throughout the study is presented in Table 6.1-3. Some explana-tory remarks relative to the sampling program are found in the followingparagraphs.M.R.26.1-3 7/73 6.1.1.2.1 BACTERIAThe evaluation of bacterial populations in an ecosystem is necessary since(1) they are important ecologically because of their role in the degrada-tion of organic material and (2) they can be used as an indicator of waterquality of the river. Such indicator organisms as Escherichia coli oftenreach high concentrations in river systems that are used as a depositoryfor untreated domestic or municipal wastes. Consequently, bacterialanalysis in the river downstream of the discharge from the cooling lakeis an important baseline analysis to make. The baseline program forbacteria is also discussed in Section 2.7.2.6.1.Bacteria samples are taken monthly from mid-river samples at each ofthe Kankakee and Horse Creek transects. Two samples from each transectare collected using sterile, standard bacteriological collection bottles.The bottles are opened and closed under water to prevent introductionof airborne bacteria. Innoculations are made on the same day assamples are collected. Counts are made of total bacteria, coliformbacteria and fecal streptococcus. As with other biological information,the data are interpreted in relation to water quality in the KankakeeRiver. A concurrent study includes standard water chemistry at the timeof monthly collection.6.1.1.2.2 PHYTOPLANKTONThe ecological contribution that phytoplankton make to an ecosystem isoften difficult to illustrate clearly. However, since the flow of energyand nutrients in any biological community begins with the phytoplankton,some estimate of their numbers, biomass and species composition must bemade. The sampling program for any community of organisms must includea frequency and pattern that reflects changes due to seasonal and spatialvari ati ons.6.1-4 Two one-liter Van Dorn water bottle dip samples collected at the surfaceof each four transects are preserved in Lugol solution. The samples areexamined for species composition, relative abundance, species diversity,biovolume and biomass.The ancillary physical measurements taken at the time of phytoplanktonsampling (river depth, temperature, and velocity) relate biologicalobservations to physical and chemical features of the environment atthe time of the study. The baseline program for phytoplankton is alsodiscussed in Section 2.7.2.2.1.6.1.1.2.3 PERIPHYTONThe contribution the periphyton make to the energetics of some riverecosystems may be greater than that of the phytoplankton. The photo-synthetic components of this community include many species of algae and M.R.2diatoms that colonize nearly every type of substrate available in theriver. They also provide a source of nutrients to many types of bottom.feeding organisms. The spatial and temporal variation may resemble thatof the phytoplankton.The periphyton are collected on two types of artificial substratediatometers, designed by Ruth Patrick: (1) a diatometer, consisting ofa series of glass microscope slides and (2) a piece of drain tilemounted on a concrete block. These two types of substrate offer avariety of culture base for the periphyton. In this arrangement, theslides and tile are protected from the high water velocities by aplexiglass shield. Two of these diatometers are placed at each of thefour river transects, one approximately 20 feet from either shore.The slides and tile are analyzed for species composition, relativeabundance, biovolume and biomass, with emphasis placed on the diatomsegment of the periphyton. Special attention will be paid to thepresence of indicator organisms for water quality. Ancillary measurements6.1-57/73 include river depth, temperature, turbidity and velocity that will betaken at the time the diatometer slides and tile are collected. Thebaseline program for periphyton is also discussed in Section 2.7.2.2.2.6.1.1.2.4 ZOOPLANKTONThe zooplankton are an important trophic link between the primary pro-ducers (phytoplankton) and carnivores (fish) in an aquatic system andmay be entrained in power plant cooling systems. The seasonal pattern IM.R.2of zooplankton development may resemble that of the phytoplankton andperiphyton. The zooplankton samples are collected with surface towsusing a metered plankton net. The plankton net is 202 p mesh withmaximum neck opening of a 0.5 meter and a number 20 standard cod end.Flow meters attached to the net will enable quantitative evaluation ofthe zooplankton collections taken at each of the four river transects.Analyses of the zooplankton will include species composition, relativeabundance and total counts. Special note will be taken of organismsthat are indicators of water quality. Cyclic or seasonal trends willbe established so that water quality at the sampling sites can be com-pared with water quality during the operational phases. The ancillarymeasurements in conjunction with the zooplankton sampling are riverdepth, temperature, turbidity and velocity.6.1.1.2.5 FISH EGGS AND LARVAEThe condenser entrainment or exposure of young fish to thermal effluentsmay ultimately affect the population of the fish community by causingmortality among the heat-sensitive young. Because of this it is impor-tant to know if fish eggs and larvae are present in the area of the powerplant river intake structure or area influenced by an appreciable thermalplume. Two surface metered tows will be collected per transect using thezooplankton net described above. Samples will be examined for totalorganism concentration and identification of life stage wherever poss- IM.R.2ible. Ancillary measurements will include water depth, temperature andvelocity.6. 1-67/73 6.1.1.2.6 MACROPHYTONThe aquatic rooted plants (macrophyton) not only provide a substrate,forage and habitat for a number of organisms including invertebratesand fish but also provide a constant nutrient source to the water andbottom sediments as they die and decay. They may also play an importantrole in modifying the physical-chemical environment of the river locallythroygh absorbing pollutants and refreshing the water. The zones inwhich macrophytes are found will be mapped on a seasonal basis. Theanalysis of field data will involve species composition and relativeabundance.6.1.1.2.7 BENTHIC INVERTEBRATESFreshwater benthic analyses are concerned with determ-in-ing the concentra-tions of those invertebrates, primarily annelids (worms) and arthropods(insects), living on or in the bottom substrate of rivers or lakes. Thebenthic community is a key link in the food network web of the fish popu-lation. Benthic animals are one of the best indicators of water qualityin aquatic ecosystems and are characterized by their slow turnover rate,high substrate selectivity and differential tolerance to environmentalstresses. Hence, when acute or chronic stresses occur, changes in theecological characteristics of the benthic community can be noted. Temporalvariation can be monitored by less frequent sampling than for planktonbecause of the longer life cycles and fixed positions. M.R.2River bottom substrates will be sampled at each of the three KankakeeRiver transects with three Ponar dredge samples from each of five.stations spaced across the river. This will ensure that the riverbottom substrate is sampled sufficiently to map gross substrate differ-ences. Horse Creek sampling entails only three stations with four Ponardredges per station. This stream is smaller and this coverage densityshould be similar to that of the Kankakee River. When the benthos arecollected, depth, temperature and water velocity will be recorded.6.1-77/73 Supplement 4The substrate sediments will be sieved to concentrate the organisms downto a number 30 sieve. The benthos then will be sorted, preservedyandanalyzed. Analysis of benthic samples will include species composition,relative abundance, species diversity, and dry-weight biomass. Theorganisms will be identified to species level when possible. Specialnote will be made of species that may be useful indicators of waterquality. In addition to the Ponar dredge samples, Hilsenhoff basketsamplers will be placed at the near shore benthos sampling locations inMarch 1974 for removal in May 1974 and in June 1974 for removal inAugust 1974. Species that attach to the substrate will be identified,enumerated per unit area, and analyzed for dry weight biomass. The pur- 4pose of the Hilsenhoff samples is to add information on the aufwuchscommunity to the already existing data obtained through the use of thePonar dredge. The addition of this technique will provide more informa-tion for characterizing the benthic, or macroinvertebrate, community interms of variation in species, total biomass, and diversity among samp-ling transects on a year-to-year basis. The baseline program forbenthos is also discussed in Section 2.7.2.2.4.6.1.1.2.8 FISHThe effects of power plants on fish are of major concern.- They representthe highest trophic level in most aquatic ecosystems and as such hold aconspicuous position in being indicators of the general condition of theaquatic ecosystem. Environmental stresses upon lower trophic levelseventually may be reflected in this fish population "structure."Fish usually receive more attention by the public in power plants mattersthan other biological considerations. Fish collection methods are oftenselective with respect to species and size of individuals. In mostmethods of capture, the fish collected represent only a very small por-tion of the total population because of behavioral differences among thefish species. The differences may exist in accordance with sex, size,habitsi and time of day or season. A fish survey will be conducted onthe Kankakee Riyer to determine species composition, relative abundance,size, biomass, ratio of forage to sport fish, presence of endangeredsspecies (if any), stomach contents, length-weight ratios and condition6.1-86/74 Supplement 4factor of selected "key" species. Collection will be primarily byelectro-shocking at each of the four river transects. When fish are col-lected, water velocity, temperature, turbidity, and depth will berecorded.The baseline data will provide information necessary to evaluate theimpact of the plant on species composition. Length-weight and condi-tion factor data (for the five most important species) will be used todocument the size of fis/t in the Kankakee River. The baseline programfor fish is also discussed in Section 2.7.2.2.5.Analyses of stomach contents will provide information on food sourceand availability in the river. If gross changes in water quality occurlater, there should be noticeable changes in food composition. Impor- M.R.2tant organisms of the biological community may be found in fish stomachs.If it is concluded the power plant construction or operation will affectfish, these data will be important for minimizing the damage.16.1.1.2.9. SPECIES DIVERSITYNatural variations in biological communities may be observed by com-parison of numbers or biomass in monthly or weekly samples, by changein species composition or relative abundance because of hatching, andby peak production period or other seasonal conditions. The conceptof the community diversity index indicates changes in species andnumbers of organisms. When associated with monthly or weekly analyses,seasonal and water quality changes may be identified. Specifically,the community diversity index that will be used in this study is the"mixed-species population," developed by Margalef,(1) Patten(2) andWilhm. (3) This index is defined by the following equation:d= -(ni/n) log2 (ni/n) 1M.R.2Where: d is the diversitys is the number of taxan is the number of organisms per taxan is the number of organisms counted.6.1-9 7/736/74 4,In addition to the species diversity index, the concept of "key" indicatororganisms will be used to evaluate water quality. The abundance-of certainspecies or organisms may be related to certain "types" of water. Forexample, certain species of worms are very tolerant of organically enrichedmatter and may be found in exceedingly high numbers in water polluted byhuman sewage.6.1.1.3 PREVIOUS ENVIRONMENTAL STUDIESFour important environmental studies were conducted on the Kankakee Riverprior to the Braidwood Study (refer to References 27,28,29,30 inSection 2.7). The results of these studies were used in this Report for M.R.2a more complete evaluation of the ecosystem of the Kankakee River. Inthese studies, river samples were analyzed for phytoplankton, periphytonand benthos as well as for chemical constituents.For the phytoplankton analysis samples were taken with a Kemmerer samplerfrom a depth of approximately three feet and preserved in a formalinsolution. The benthic organisms were collected with a Ponar dredge,one grab sample being taken per sampling location. Sediments werescreened through a standard 30 mesh sieve and preserved in a formalinsolution. Fish sampling was accomplished by shoreline seining with a25-foot, 3/8-inch-mesh seine. The chemical analyses were performedaccording to the methods described in "Standard Methods".6.1.2 GROUNDWATER6.1.2.1 PHYSICAL AND CHEMICAL PARAMETERSThe properties and configuration of the local aquifers are described inSection 2.5. The following Section describes methods for obtainingpreoperational information on groundwater levels and quality character-istics which might be affected by site preparation, plant construction,and operation. These characteristics will serve as a base in monitoringof future conditions. The program discussion is confined to technicaldescriptions of sampling design, frequency and methodology.6.1-107/73 Table 6.1-1AQUATIC ANALYSES FOR THE BRAIDWOOD SITEPHYSICAL AND CHEMICAL PARAMETERSParameter AnalysisPhysicalVelocityTemperatureDissolvedOxygenpH'TurbidityDepthInstrumentor MethodGurleyYSIYSIpH-meterSecchi discRoss FathometerLocationKankakee River and Horse Creek5 stations each of 3 transectson Kankakee River.3 stations on-l transect onHorse Creek.Site Ponds,2 ponds (1 ea.)mýScheduleBiweekly -October'72.November '72;Monthly -December '72 toSeptember '73Monthly -October '72 toSeptember '73Biweekly -October '72,November '72;Monthly -December '72 toSeptember '73Monthly -October '72 toSeptember '73ARemarks MeVelocity, tem-perature andDissolved Oxygen:0.2 and 0.6 ofwater column depth.Temperature,Dissolved Oxygen:top, mid and bottomof water column.NoneAncillaryeasurementsNoneM. IF.ChemicalTotal Solids, StandardTotal Volatiles MethodsTotal Organic Carbon,Total SuspendedSolids.Turbidity, colorBOD, DO, pHHardness, Alkalinity,ConductivityS0O+, NO-, NO-, NH.SiOZ, Na+, KCa,++3Mg+, Total PO 4Ortho PO43, S-2 (if applicable)Kankakee River and Horse CreekMidstream on each of 3 tran-sects on Kankakee River, and.of I transect on Horse Creek.Site Ponds,2 ponds (I ea.)Duplicate surfacesamples using 3-literVan Dorn bottleSingle surfacesamples withVan Dorn bottleTemperature,DissolvedOxygen, DepthTemperature,DissolvedOxygen, pH,Depth7/7.2(continued) Table 6.1-1 (continued)Parameter AnalysisInstrumentor MethodLocationScheduleRemarksChemical(cont'd)and the ions:Fe,(total),Mn, Co, NM,Cr, Hg, Zn,Cu, Pb, CdKankakee Rivertand Horse CreekMidstream on each of 3 tran-sects on Kankakee River, andon 1 transect on Horse CreekQuarterly -October '72,January '73,April '73,September '73Quarterly -October '72,January '73,April '73,September '73duplicatesurfacesamplessinglesurfacesamplesAncillaryMeasurementsTemperature,DissolvedOxygen, pH,DepthTemperature,DissolvedOxygen, pH,DepthSite Ponds,2 ponds (1 ea.)M.R. 2CAUN17/73 Table 6.1-2AQUATIC ANALYSES FOR THE BRAIDWOOD SITEBIOLOGICAL PARAMETERSAnalysisInstrumentcr MethodAncillaryMeasurementsLocationScheduleRemarksKankakee River and Horse Creek(only)Mid stream on each transect.BacteriaON'PhytoplanktonPeriphytonTotal bacteriaTotal ColiformFecal StreptococcusFecal ColiformSpecies CompositionRelative AbundanceSpecies DiversityBiovolume (Lackey)BiomassSpecies Composition(R. Patrick)Relative AbundanceSpecies DiversityBiovolumeBiomassMid stream on each transect.2 Diatometers on each tran-sect with accompanying tiles,approximately 20 feet fromeither shore.Monthly -October '72 toSeptember '73Biweekly -October '72,November '72;Monthly -December '72 toSeptember '73Biweekly -October '72,November '72,April '73,September '73;Monthly -December '72 toMarch '73Duplicate.one literdip samples fromsurface. Lugol SolutionpreservativeArtificial substratediatometer anddrain tilesDuplicate sterilebacteria bottlesDepth,Temperature,Velocity,TurbidityDepth,Temperature,Velocity,Turbidity(continued) Table 6.1-2 (continued)Instrumentor MethodAncillaryMeasurementsAnalysisLocationScheduleRemarksZooplankton Species CompositionRelative AbundanceTotal PlanktonCount (Sedgewick-Rafter Cell)Kankakee River and Horse Creek(contd).Mid stream on each.transect.Each transect at 0:1 and o.gof the stream width.(A~sJFish Eggs& LarvaeTotal numberorganisms; stagesof life cycle(as possible)Biweekly -October '72,November '72;Monthly -December '72 toSeptember '73Weekly inOctober. '72and March 15 toMay 15, '73Biweekly -October '72;Monthly -April '73,July '73,September '73Metered surface towswith 202 W plankton net,#20 cod end. 1:10 forma-lin preservative.Pseudoplankters countedas part of total plank-ton. Cyclic and sea-sonal trends noted.Metered tows with202 u mesh, #20 cod end.Depth,TemperatureVelocity,TurbidityDepth,TemperatureVelocityDepth,Temperature,VelocityMacrophyton Species CompositionRelative AbundanceGeneral mapping of emergentvegetationGrab samples(continued) Table 6.1-2 (continued)Ana lysi sBenthicInverte-bratesIns trumentor MethodSpecies CompositionRelative AbundanceSpecies DiversityBiomassSpecies CompositionRelative AbundanceSizeBiomassForage/SportLength/WeightCondition factorsStomach content(on a total of 50fish, 5 key species)LocationOn Horse Creek, 4 samples onstations located 0.2, 0.5 and0.8 of the stream width. OnKankankee River, 3 samples onstation located 0.1, 0.3. 0.5,0.7, and 0.9 of the streamwidth. Sampling-is doneusing power dredge.Kankakee River and Horse CreekFishScheduleBiweekly -October '72,Novenmer '72;Monthly -December '72 toSeptember '73Biweekly -October '72;Monthly -March '73 toSeptember '73Monthly -October '72,November '72,Quarterly -1973AncillaryRemarks MeasurementsIndicator species Depth,noted Temperature,VelocityCollections by DC Depth,Electroshocker. Temperature,Catch per unit effort Velocity,noted. Turbidity00~Fi shKankakee River and Horse CreekCollections by DCElectroshocker.None. Table 6.1-2aAQUATIC PARAMETERS FORTHE BRAIDWOOD SITEParameterMacrophytonSampling FrequencyOnce each month inMay and AugustSampling MethodHapping by the transectsystemCollection of plantsby quadratAnalysesSpecies identification whenplants are developed sufficientlyto allow itRelative abundance (percentcoverage)Standing crop -expressed asg dry wt/m2.Plants are dried at1050C before being weighedSampling LocationMacrophyte map for areafrom Transect 2 to 5,including Horse CreekStanding crop estimatesmade at regular inter-vals along both sides ofriver and Horse CreekBenthos(Dredging)Once each month inMarch, May,July, August,Novemberahdd MarchPonar or Smith-Maclntyre DredgeSpecies identification, whenpracticalRelative abundance (Number ofindividuals of a particularspecies/number of individualsof all species)Collections will bemade at Transects2, 3. 5. and 6 atstations .1, .5, and.9;at Transect 4, station.5/coWaDensity (Number of organisms/unit area)General bottom type (mud, mud-sand, gravel, etc.)Species diversity (Shannon-Weaver)Benthos Once each month in Chicken wire Species identification, when On both sides of the(Artificial March, May, July, baskets filled with practical river at TransectsSubstrate) August, November, substrata similar to abundance (Number of 2, 3, and 5 (stationsand March that of the Kankakee individuals of a particular 0.0 and 1.0);River bottom species/number of individuals Transect 4 in theBaskets placed of all species) center of the creekalong shore-line Density (Number of organisms (.5)per basket)Species diversity (Shannon-Weaver)(Continued)Lf-"C"mz.rt Table 6.1-2a (Continued)Parameter Sampling FrequencyAdult Fish(Electro-shocking)Stomach andParasiteAnalysesOnce each month duringMarch, May, June, July,August, November,andMarchSampling Method240 volt DC, 12 Amp.electroshocking ap-paratusAnalysesSpecies identificationStandard-length (to the nearestmm) and weight (to the nearest 0.5 g)Relative abundance (Number ofindividuals of a particular species/number of individuals of all species)Condition factor for all fishweighed and measured of the six majorspeciesSpecies diversity (Shannon-Weaver) oStomach contents -identificationof food organisms to species, ifpracticalEctoparasite infestation -identi-fication of external parasites tospecies, if practicalSampling LocationOn both sides of the river,from points 500 feetupstream to 500 feet down-stream of transects in theriver, along shorelineHorse Creek -1000feet upstream on creek frommouthQuarterlyorSex determination of all fishexamined for stomach content,providing fish are sexuallydevelopedSeining Once during June, July, 50-100 feet seine Same as numbers 1-5 above On both sides of the river,and August with 1/4 inch bar from points 100 feet up-mesh stream to 100 feet down-stream in the riverIn Horse Creek, four col-lections within the areawhere electroshocking isconductedBaited Hoop Once during June, July, Anchored nets placed Same as numbers 1-5 above Center of the riverNets and August parallel to river (station .5) at river Tran-flow sects 2, 3. and 5Gill Nets One during May, June,and JulyExperimental gill net;125 feet with five 25foot panels. Meshsizes range from 3/4-2 inchesSame as numbers 1-5 aboveTwo locations. across themouth of Horse Creek andat Transect 4 in HorseCreekInr-a-a'U'U(Continued) Table 6.1-2a (Continued)ParameterFish Popula-tion EstimateSampling FrequencyOnce during May andAugustSampling MethodDC ElectroshockingEquipmentAnalysesMark -recapture: combination-of DeLury and Peterson methods.Sampling LocationTwo locations: at orbelow Transect 3 and onelocation in the shockingarea of Horse Creek.Fish Eggs and Once.each week during Metered stationary tows Count of eggs and larvae "Stationary tows -surfaceLarvae May and June and first using #0(5690) mesh plank- Identificationof life stage and bottom at Transectstwo weeks in July ton net d 2, 3, and 5, stations .1Submersible pump with 'and .9; at Transect 4 inwater filtered through Horse Creek, station .5a #O(569p) plankton net Submersible pump -bottomsamples only at the abovelocationsPhysical Once each time a field Field measurements River velocity as feet/second- Transects 2 and 3 attrip is conducted measured by Gurley velocity meter stations .1, .5, and .9at 20% and 60% of riverHydrolab Temoerature as degrees Cen- depth; Transect 4 andtigrade, oxygen as mg/i, pH as pH 5 at mid-river at depthunits, conductivity as umho- aboveall measured by HydrolabBacteria Once each month during' Sterilized bacteriological Total plate count Surface samples atMarch, May, August, bottles Total coliform Transects 2, 3, 4, and 5November, and March station .5Fecal coliformFecal streptococcusAll counts expressed as colonies/100 ml(.)n(Continued)rt4-- Table 6.1-2a (Continued)ParameterRoutine WaterChemistrySampling FrequencyOnce each month duringMarch, May, June, July,August. November, andMarchSampling MethodCollection made byVan Dorn bottleAnalysesTotal.sol ids (mg/i)Total dissolved solids (mg/1)Total volatile solids (mg/1)Total suspended solids (mg/l)Total alkalinity as CaC03 (mg/1)Hardness as CaCO3 (mg/I)Turbidity (JTU units)Color (color units)N02-H (mg/i)NOi-N4 (mg/1)NH3-N (mg/l)Total PO4-P (mg/1)Ortho P04-P (mg/1)S04 (mg/I)Si02-Si .(mg/1)Ca (mg/i)Mg (mg/l)Na (mg/1)K (mg/1)BOD (mg/i)COD (mg/1)Sampling LocationTransects 2, 3, 4, and5 at station 0.5; surfacecollectioncoC.Heavy MetalsOnce each month during PVC collection bottleMarch, May, August,November, and MarchTotalMn asCo asNi asTotalHg asZn asCN asPb asCd asFe as mg/lmg/img/ 1mg/1Cr as mg/iPg/img/img/Img/img/iSurface samples at Transect3,and 4, station .5UI.m(Conti nued) Table 6.1-2a (Continued)Parameter Sampling FrequencyPesticides Once each month inMay and AugustSampling MethodsPVC collectingbottleAnalysesTwo pesticides and one herbicide,dieldren, DDT and silvex,respectively were selected forstudy. The selection was basedon those pesticides andherbicides in common usage onagricultural lands borderingthe Kankakee River and HorseCreekSampling LocationSurface samples atTransects 3 and 4,station .5Crayfish Once each month in Specially Species Identification Shoreline stationsStudy May, June, July,and constructed Sex (0.0 and 1.0) atAugust wire-iesh trap Transects 2, 3, 4,and 5Biomass (wet weight ingrams)00MoME[340'-:. Table .-2bMARSH/POND AREA STUDIES (1974-1975)BRAIDWOOD STATION TERRESTRIAL MONITORING PROGRAM SUMMARYSamplingFrequencySamplingMethodSamplingLocationOo-hParameterVegetativeSurveyAmphibianandReptileSurveyBirdSurveyInsectSurveyTwo surveys peryear (spring andfall seasons)Five surveysduring warmermonthsMay-Sept.Once each monthfor five daysMay-Sept.Once each monthfor five daysLine transects onpond banks and onslope gradientsCollection byloop traps,trammel nets,and hand.Biotelemetry,dissection, andgonadal examina-tionDirect observa-tion and calls(no head counts)Direct observa-tion qualita-tiveLight trappingSelected marsh/ponds in tran-sect Areas 2, 3,6, 9, and CSame locationsas used forvegetationalanalysesSame locationas used forvegetationalanalysesSame locationas used forvegetationalanalysesCalculation of rela-tive cover, density,and importanceCalculation ofscute-body length,growth rates, homerange, and relativeabundanceRelative on-siteabundanceRelative abundancefor major typesStatisticsAnalysesIdentification ofvarious cover, suc-cessionary trends,seed dispersal mech-anisms, and primaryfood source adequacyfor waterfowl andother water associatedorganismsSpecies identification,limiting factors,habitat suitability,migration, and re-establishment poten-tial of turtlesSpecies tabulationand habitat adequacyfor waterfowl utili-zationFood source diversityfor fish, amphib-ians, reptiles, andbirds4=, Table 6.1-2cSUMMARY OF THE TERRESTRIALMONITORING PROGRAM FOR THE BRAIDWOOD SITE(1974-1975)ParametersVegetativeSurveySampl i ngFrequencyTwo surveysper year(spring andfall seasons),SamplingMethodPermanent studyplotsSamplingLocationOn high ridgesand slopes onTransects 2,3, 6, andArea CStatisticsCalculations todetermine rela-tive frequency,density, andimportanceAnalyses_Identification ofvarious cover,successionarytrends, seeddispersalmechanisms, andprimary foodsource adequacy(0Two surveysper year(spring andfall)One survey(summer)Quarterly(to includemajorseasons)MammalSurveyLine transectsFixed radiusplotLive trapping(random andgrid) forsmall mammals.Direct obser-vation andsecondarysigns such asdens, scats,and tracksArea AAreas A, BTransects3 and 6for live trapstraps.Transects 2,3, 4, 6, and 9for walkingobservationalroutesCalculationsto determinerelativepopulationestimatesSpecies identifica-tion, vigor, sex,weight, migratorypotential, andannual speciesfluctuation'I,-o*00*rt4b Table 6.l-2c (Continued)Sampl ingFrequencySampl ingMethodSampl i ngLocationParametersStatisticsAnalysesSmall mammal snaptrapping (lineplacement),direct observa-tion,- andsecondary signsDirect observa-tion and sec-ondary signsDirect observa-tion and calls(no headcounts)Transectestablishedwithin Area ATransectsestablishedwithinAreas B and C2, 3, 4, 6, 9and Areas A,B, and CBirdSurveyCoQuarterly(to includemajorseasons andmigratoryperiodsRelative on-siteAbundanceSpecies tabula-tion, habitatadequacy forwaterfowl, utili-zation, andannual speciesfluctuations.VfaIS Table 6.1-3BRAIDWOOD AQUATIC SURVEY -BIOLOGICAL METHODSParameterBacteriaPhytopl ank ton0~~MethodMillipore membrane filtration. APHA (1965)American Public Health Association et al.(1965).Standard Methods for the Examinationof Water and Wastewater, includingBottom Sediments and Sludges, 13thedition. American Public HealthAssociation, New York.Concentrated raw water samples wereexamined following the Lackey (1938)microtransect method.Lackey, J. B. (1938), The manipulationand counting of river plankton andchange In some organisms due to form-alin preservation. U. S. Public HealthReports, 53, 2080-2093.Acid digested, artificial substrate sampleswere enumerated following the line transectmethod of Hohn and Hellerman (1963).Hohn, M. H. and J. Hellerman (1963), TheTaxononmy and structure of diatom pop-ulations from three eastern NorthAmerican rivers using three samplingmethods. Trans. Amer. Microscop. Soc.82:250-329.Major Taxonomic ReferencesPennak, R. W., (1953) Fresh-waterInvertebrates of the United States.Ronald Press, New York.Ward, H. B. and G. C. Whipple (1965)Fresh-water Biology Ed. W. T.Edmondson, 2nd ed. John Wiley andSons Inc.. New York.Prescott, G. W. (1962), Algae of theWestern Great Lakes Area (rev. ed.)Wm. C. Brown Co., Dubuque, Iowa.Tiffany, L. H. and M. E. Britton (1952)The Algae of Illinois. Hofner Pub-lishing Co., New York.Hustedt, F. (1930), Bacillariophyta(Diatomeae), In A. Pascher. DieSusswasser-Flora Mitteleuropas.Volume 10, 466 p. Jena.---- (1927-1930) Die KieselalgenDeutschlands, Osterreichs und derSchweiz mitBeruchsichtigung derubrigen Lander Europas Sowie derangrenzenden Meeresgebeite.In L. Rabenhorst. Kryptogamen-Flora77 Part I, 925 p. Leipzig.---- (1931-1959). (Ibid). Part II,845 p. Leipzig.Per phyton(continued) Table 6.1-3 (continued)ParameterMethodMajor Taxonomic ReferencesBenthicInvertebratesPonar dredge samples.American Public Health Association et al.(1965).Standard Methods for the Examinationof Water and Wastewater, includingBottom Sediments and Sludges, 13thedition, American Public HealthAssociation, New York.ElectroshockingAPHA (1965) Standard MethodsAmerican Public Health Association et al.(1965). Standard Methods for theExamination of Water and Wastewaterincluding Bottom Sediments and Sludges.13th edition, American Public HealthAssociation, New York.Total sample count of tow samples.Pennak, R. W. (1953), Fresh-waterInvertebrates of the United States,Ronald Press, New York.Ward, H. B. and G. C. Whipple (1965)Fresh-water Biology Ed. W. T.Edmondson, 2nd ed. John Wiley andSons, Inc., New York.Eddy, S. (1957), How to Know theFreshwater Fishes, Wm. C. Brown Co.,Dubuque, Iowa.FishCDZooplanktonPennak, R. W. (1953), Fresh-waterInvertebrates of the United States,Ronald Press, New York.Ward, H. B. and G. C. Whipple (1965)Fresh-water Biology Ed. W. T. Edmond-son, 2nd ed., John Wiley and SonsInc., New York.Fish eggs andLarvaeMacrophytonTotal sample count of tow samples.Line transect mapping of macrophytes asdescribed by Wood (1970).Wood, R. H. (1970), Hydrobotanical Methods.University of Rhode IslandFassett, N.C. (1957), A Manual ofAquatic Plants, The University ofWisconsin Press, Madison, Wisconsin. BLOWDOWN DISCHARGEINTAKE MAKEUPTh r IAi' tuF PIT IfPARKMILES0L -KANKAKEE RIVER AND HORSE CREEK TRANSECTS0 SITE- PNO STATIONSFigure 6.1-1 Locations of Aquatic Transects and Stations forthe Braidwood SiteN. N .,Z7/736.1-48 ILLINOIS RNDEPARTMENT OFNATURAL RESOURCES ?oOcOffice of Water Resources524 South Second Street, Springfield 62701-1787 George H. Ryan, Governor 0 Brent Manning, DirectorDecember 20, 2000
SUBJECT:
Permit No. NE2000125Proposed Operation and Maintenance of theBraidwood Nuclear Station Cooling Pond DamWill CountyExelon Generation Company, LLC1400 Opus Place Suite 900Downers Grove, Illinois 60515-5701Gentlemen:Enclosed is Illinois Department of Natural Resources, Office of Water ResourcesPermit No. 0S2000237 authorizing the operation and maintenance of theBraidwood Nuclear Station Cooling Pond Dam, an intermediate-size Class I (highhazard). This permit does not supersede any other federal, state or localauthorizations that may be required for the project.Please note that special condition f. below requires Exelon Generation Company,LLC to develop an acceptable emergency action plan (EAP) by July 31, 2001.However, in an effort to facilitate the permit process we have issued youroperation and maintenance permit with a special condition to address this matter.An acceptable format for an EAP may be found on the FEMA website at(www.fema.aov/mitleap toc.htm). Please feel free to contact Mr. Paul Mauer ofthis office if you have any questions regarding the EAP format. Mr. Mauer will bepresenting a training session for the development of EAPs in the spring of 2001.In addition to the general conditions of the permit, this approval is subject to thefollowing special conditions:a. The Permittee authorizes the Department of Natural Resources, Office ofWater Resources, In the event that the dam is found to be in immediatedanger of failure, to enter upon the dam property, if necessary, to prevent oralleviate any dam breach damage. The Permittee agrees to compensate theOffice of Water Resources for costs reasonably incurred by such emergencyaction;b. The Permittee shall operate, inspect, and maintain the dam andappurtenances in accordance with the approved plans and in accordance withthe latest edition of the "Rules for Construction and Maintenance of Dams"adopted by the Department of Natural Resources. If the approved operation,inspection and maintenance plans are not complied with by the Permittee, thispermit shall cease and be null and void;[printed on recyced and recyclable paperj 0Exelon Generation Company, LLCPage 2December 20, 2000c. The Permittee grants the Department of Natural Resources, Office of WaterResources, the right of access to inspect the dam site and immediate vicinitybeginning from the date of this permit, for the life of the dam andappurtenances;d. There shall be no deviation from the plans submitted and hereby approvedunless the proposed change in plans shall first have been submitted to andapproved, in writing, by the State of Illinois acting by and through itsDepartment of Natural Resources, Office of Water Resources;e. The Permittee shall have the dam and appurtenances inspected annually byan engineer or other qualified personnel as defined in Section 702.20 of the"Rules for Construction and Maintenance of Dams" and shall have theengineer or qualified personnel prepare and submit an inspection report~onforms provided by the Department of Natural Resources to the Department ofNatural Resources, Office of Water Resources. The first inspection reportshall be submitted within one year of the date of this permit; andf. The Permittee shall develop and have an approved Illinois Department ofNatural Resources Emergency Action Plan for the dam in place by July 30,2001.Please be advised that the Illinois Department of Natural Resources, Office ofRealty and Environmental Planning (OREP) participates in the regulatoryprograms of the U.S. Army, Corps of Engineers (USCOE) and may review thisproject if a USCOE Section 10 or 404 permit is required. Issuance of a permit bythe Office of Water Resources does not preclude OREP's provision of commentsand/or recommendations, primarily related to biological effects of the proposedaction, to the USCOE and other federal agencies concerning your project.Upon receipt and review or this permit and all of its general and special conditions,please properly execute and return the attached acceptance blank within sixty (60)days from the date of the permit.If any changes in the plans or location of the work are found necessary, revisedplans should be submitted promptly to this office so that they may receiveapproval before work thereon is begun. When the work is done, please providewritten notification that the project has been completed in accordance with theapproved plans and conditions of the permit. Exelon Generation Company, LLCPage 3December 20, 2000Please feel free to contact Robert Giesing of my staff at 217/782-3863 if you haveany questions concerning this authorization.Sincerely,Robert H. Dalton, P.E.Chief, Downstate Regulatory ProgramsRHD:RCG:crwEnclosurecc: USCOE (Chicago District)IDNR/OREPIllinois Environmental Protection AgencyIDNR/Schaumburg (Gary Jereb) PERMIT NO. NE2000125DATE: December 20, 2000State of IllinoisDepartment of Natural Resources, Office of Water ResourcesPermission is hereby granted to:EXELON GENERATION COMPANY, LLC1400 OPUS PLACE SUITE 900DOWNERS GROVE, ILLINOIS 60515-5701for the operation and maintenance of the Braidwood Nuclear Station Cooling Pond Dam andppurtenances, an Intermediate-size Class I (high hazard) dam located In portions of Sections 19 thru.1 and 28 thru 33, Township 32 North, Range 9 East of the 3rd Principal Meridian near Braceville,Illinois In Will County,In accordance with an application dated October 16, 2000, and the plans and specifications entitled:PROPOSED OPERATION AND MAINTENANCE OF THEBRAIDWOOD NUCLEAR STATION COOLING POND DAMRECEIVED OCTOBER 19,2000.Examined and Reco ApRobert H. Dalton, Chief Donald R. Vonnahme, DirectorDownstate Regulatory Programs Section Office of Water ResourcesA ved:Brent Manning, D ector rMyNADepartment of Natural ResourcesThis PERýMIT isuetto the terms and secial conditions contained herein. PERMIT NO. NE2000125'THIS PERMIT IS SUBJECT TO THE FOLLOWING CONDITIONS:1) This permit is granted in accordance with the Rivers, Lakes and Streams Act "615 ILCS 5."2) This permit does not convey title to the permittee or recognize title of the permittee to any submerged or other lends,and furthermore, does not convey, lease or provide any right or rights of occupancy or use of the public or privateproperty on which the activity or any part thereof will be located, or otherwise grant to the permittee any right orinterest in or to the property, whether the property Is owned or possessed by the State of Illinois or by any private orpublic party or parties.3) This permit does not release the permittee from liability for damage to persons or property resulting from the workcovered by this permit, and does not authorize any Injury to private property or invasion of private rights.4) This permit does not relieve the permittee of the responsibility to obtain other federal, state or local authorizationsrequired for the construction of the permitted activity; and if the permittee Is required by law to obtain approvalsfrom any federal or other state agency to do the work, this permit Is not effective until the federal and state approvalsare obtained.5) The permittee shall, at the permittee's 6wn expense, remove all temporary piling, cofferdams, false work, andmaterial Incidental to the construction of the project. If the permittee fails to remove such structures or materials,the Department may have removal made at the expense of the permittee.6) In public waters, if future need for public navigation or other public interest by the state or federal governmentnecessitates changes in any part of the structure or structures, such changes shall be made by and at the expenseof the permittee or the permilttee's successors as required by the Department or other properly constituted agency,within sixty (60) days from receipt of written notice of the necessity from the Department or other agency, unless alonger period of time is specifically authorized.7) The execution and details of the work authorized shall be subject to the review and approval of the Department..Department personnel shall have the right of access to accomplish this purpose.-4 .) Starting work on the activity authorized will be considered full acceptance by the permittee of the terms andconditions of the permit.9) The Department in issuing this permit has relied upon the statements and representations made by the permittee; ifany substantive statement or representation made by the permittee is found to be false, this permit will be revoked;and when revoked, all rights of the permittee under the permit are voided.10) In public waters, the permittee and the permittse's successors shall make no claim whatsoever to any Interest in anyaccretions caused by the activity.11) In Issuing this permit, the Department does not ensure the adequacy of the design or structural strength of thestructure or improvement.12) Noncompliance with the conditions of this permit will be considered grounds for revocation.13) If the construction activity permitted Is not completed on or before NIA, this permit shaM cease and be null and void.When all work Is constructed, the permittee shall notify the Department so that a final inspection can be completed.THIS PERMIT IS SUBJECT TO THE ATTACHED SPECIAL CONDITIONS SPECIAL CONDITIONSEXELON GENERATION COMPANY, LLCPERMIT NO. NE 2000125a. The Permittee authorizes the Department of Natural Resources, Office of Water Resources, inthe event that the dam is found to be in immediate danger of failure, to enter upon the damproperty, if necessary, to prevent or alleviate any dam breach damage. The Permittee agrees tocompensate the Office of Water Resources for costs reasonably Incurred by such emergencyaction.b. The Permittee shall operate, inspect, and maintain the dam and appurtenances In accordancewith the approved plans and In accordance with the latest edition of the "Rules forConstruction and Maintenance of Dams" adopted by the Department of Natural Resources. Ifthe approved operation, Inspection and maintenance plans are not complied with by thePermittee, this permit shall cease and be null and void.c. The Permittee grants the Department of Natural Resources, Office of Water Resources, the rightof access to inspect the dam site and Immediate vicinity beginning from the date of this permit,for the life of the dam and appurtenances.d. The Permittee shall remove the entire dam and appurtenances no later than 20 years from thedate of this Permit unless an extension Is granted by the Department of Natural Resources,Office of Water Resources.e. The Permittee shall have the dam and appurtenances Inspected annually by an engineer orother qualified personnel as defined in Section 702.20 of the "Rules for Construction andMaintenance of Dams" and shall have the engineer or qualified personnel prepare and submitan inspection report on forms provided by the Department of Natural Resources to theDepartment of Natural Resources, Office of Water Resources. The first inspection report shallbe submitted within one year of the date of this permit.f. The Permittee shall develop and have an approved Illinois Department of Natural ResourcesEmergency Action Plan for the dam In place by July 30,2001. PERMIT NO. NE2000125PERMIT ACCEPTANCEThis Acceptance must be signed and returned to the address below to validate this permit. SeeCondition No. 8.ILLINOIS DEPARTMENT OF NATURAL RESOURCESOFFICE OF WATER RESOURCES524 South Second StreetSpringfield, Illinois 62701-1787The undersigned permittee, personally, or if a corporation by its duly authorized officers, herebyaccepts the permit bearing the above serial number subject to all conditions named therein, on thisday of .20.By.ByIf a corporationaffix seal here. Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: GW-4 Category: GroundwaterStatement of Question:Discuss what impact on groundwater flow, either recharge to or discharge from the coolingpond has on aquifers around the sides of the pond.Response:The cooling pond is designed to have none or minimal influence on the uppergroundwater aquifer (the shallow sands of the Equality Formation) and on the underlyingdeeper regional bedrock aquifers. This is accomplished by keeping the surface waterseparate and distinct from the surrounding groundwater so as to insure the necessaryvolume of water and quality of water for Braidwood Station cooling systems. The coolingpond is built with a slurry trench (slurry wall or cut off wall) installed from the top of thewater table and anchored 2 feet into the underlying Wedron Clay Till aquitard. This slurrytrench is constructed of a soil bentonite material and has a permeability averagingaround 6 x 10- cm/sec. As such, it becomes a barrier against lateral flow of groundwaterin to the cooling lake and flow of surface water out to the groundwater. The slurry trenchextends around the perimeter of the cooling pond.In addition to subsurface barriers that keep groundwater out, the cooling pond wasdesigned with a dike on top of the slurry trench location (or nearby) and extending aspecific distance above the cooling pond water surface and the natural ground surface.This dike prohibits surface water flow into the cooling lake up to an amount that wouldresult from the assumed probable maximum precipitation event, as discussed in section2.4.8.2 of the Braidwood Updated Final Safety Analysis Report (UFSAR). Therefore, thesurrounding groundwater in the shallow sand aquifer is protected from surface wateroverflows from the cooling pond, except in extreme conditions. It should also be notedthat the bottom of the cooling pond is constructed into either the Wedron Clay Till or intothe underlying Francis Creek Shale Formations. Both of these geologic units arerecognized aquitards and as such they would prevent any significant flows of coolingpond water vertically into the underlying deep regional aquifer systems (i.e., the Galenaand Platteville Groups or the deeper St Peter Sandstone Formation). The dike and theSlurry Trench for the Braidwood Station are inspected routinely to ensure their integrity.Attachment No. 1 to this response provides pertinent sections from the BraidwoodUFSAR; specifically sections 2.1.1.1 and sections 2.4.13.2.3. These Sections furtherdiscuss the conditions of the cooling pond described above. Attachment No. 1 alsopresents some figures from the UFSAR and other reports which present information onthe Slurry Trench, the dike and the cooling pond.List Attachments Provided:1' Attachment No. 1 Attachment No. 1Response to NRC Question GW-4C ONESTOMMýROVERS& &ASSOMATES08454SMemc-1
- OVERFLOW/SPILLWAY!-/3000 0 3o00SCALE IN FEETBRAIDWOOD STA71OHUPDATED FINAL SAFETY ANALYSIS REPORTFIGURE 2.4-34LOCATION OF DIKE REACHES FORWIND WAVE ANALYSIS
BRAIDWOOD-UFSAR2.4 HYDROLOGIC ENGINEERING2.4.1 Hydrologic Description2.4.1.1 Site and FacilitiesThe site is located about 4 miles southwest of the KankakeeRiver near the town of Custer Park in a strip-mined regionpresently characterized by many water-filled trenches andponds. Cooling water for the plant is supplied by a coolingpond which covers one of these strip-mined areas. (Note: thecondenser water cooling facility at Braidwood Station-isreferred to as a cooling pond rather than as a cooling lake asin the PSAR. This is consistent with the definition of "pond"in EPA Effluent Guidelines and Standards for Steam ElectricPower Generation, 40 CFR 423, Section 432.11, Item m, whichbecame effective in 1974.) The pond has an average depth ofapproximately 8.21 feet at its normal pool elevation of 595feet MSL (all elevations refer to USGS 1929 datum), with asurface area of 2475 acres or 3.87 mi2 and a storage volume of22,300 acre-feet at normal pool elevation. The water surfacearea is 73% of its total drainage area of 5.3 mi2.The surfacearea of the pond at normal pool elevation, as measured from theas-built topographic maps, is 2537 acres or 3.96 mi2.This isnot significantly different from the area used for analysis.The pond is contained by dikes having a top elevation of 600feet, except for that portion of the dike just south of theplant, which has a top elevation of 602.5 feet. The dikesystem is not a Seismic Category I structure.Seismic Category I buildings include the containment building,the auxiliary building, and the fuel handling building. Inaddition, the portion of the lake screen house housing theessential service water (ESW) intake, the essential servicecooling pond (ESCP), and the ESW intake and discharge pipes,are classified as safety Category I facilities. The gradefloor elevation of these buildings is at 601.0 feet. SeismicCategory I structures are shown in Figures 2.4-1, 2.4-26through 2.4-29, and 2.4-47.The essential service cooling pond is located in thenorthwestern corner of the cooling pond in an area excavatedbelow the surrounding pond bottom, to an elevation of 584 feet.The ESCP has a surface area of 99 acres and a depth of 6.0 feetat a pool elevation of 590.0 feet (see Figure 2.4-47).1The essential service water cooling pond survey is a hydrographicsurvey incorporating precision water depth measurements. Thesemeasurements are performed with a survey fathometer, whichproduces a continuous chart recording of water depth. Slopedefinition as well as pond bottom survey is obtained atapproximately 100-foot-wide tracklines. The initial pond surveywas performed on October 21, 1981. Subsequent surveys will beperformed once every 18 months;2.4-1REVISION 2 -DECEMBER 1990 BRAIDWOOD-UFSARmunicipal water supply from the glacial drift is Mazon. Thesix Mazon wells have an average capacity of 37 gpm each from asand and gravel aquifer within the glacial drift.A tabulation of the location, users, type, depth, water level,elevation, yield, and usage of private water wells within a2-mile distance from the site boundary is given in Table2.4-23, and the locations of these wells are mapped on Figure2.4-42. Wells shown on this figure within the site boundarieswill be abandoned. These exhibits are based on research ofwell records and a field survey of the area.A total of 180 wells were identified in 124 locations in theinvestigated area. Additionally, 35 locations in the areaprobably have wells. These "unidentified" sites were notinventoried because the occupant could not be located. (Theyinclude summer residences, abandoned farmsteads, or otherlocations where no occupant could be located.) Approximately70 sandpoint wells located in the town of Godley were notinventoried individually, but a general summary of the range ofcharacteristics was obtained from a local official.Well-log data for the sand aquifer in the area indicate thatthe site is a recharge area, with groundwater moving away fromthe site in almost all directions toward the nearby streams andrivers. Local reversals of gradient toward the strip minesoccur where water drains toward the open pits, but beyond thepit edge areas, groundwater flow is toward the major surfacedrainage system. To the east and southeast of the site,groundwater flow is toward Horse Creek, and the gradient in theshallow sand aquifer averages about 12 feet per mile. To thenorth, the groundwater table slopes at a gradient of about 10feet per mile toward the Kankakee River. The gradient is thesame to the west and northwest, where the water table slopestoward the Mazon River. To the south, the water table slope isminimal, since the recharge area continues in that direction.2.4.13.2.2 Site Hydrogeologic Conditions2.4.13.2.2.1 PermeabilityPermeability values for the various hydrogeologic units at thesite were determined from laboratory tests on soil samples,field permeability tests conducted in the ESCP area, and waterpressure tests in the bedrock. These tests are described inSubsections 2.5.4.6 and 2.5.6.Laboratory permeability test results, reported in Table 2.5-35,show the permeability of the sand deposits to range from 3.66 X10-4 cm/sec to 7.32 X 10-2 cm/sec. For the evaluation ofseepage from the ESCP, an average value of 6 X 10-3 cm/sec wasused. The average permeability of the till was found to be 2.6X 10-6 cm/sec. For discontinuous, well-graded gravel and silts2.4-29 BRAI DWOOD-UFSARwithin the glacial drift at a depth of 35.5 to 40.5 feet inBorings H-I and H-3, the permeability was found to average 8.4X 104 cm/sec.The results of the water pressure tests conducted in bedrockare presented in Tables 2.5-28 through 2.5-31 and on boringlogs presented in Figure 2.5-159. Water pressure tests wereperformed in the Pennsylvanian-age Carbondale and SpoonFormations and in the underlying Brainard Shale and FortAtkinson Limestone of the Ordovician-age Maquoketa ShaleGroup. No water losses were recorded in 20% and 50% of thetested intervals in the Carbondale and Spoon Formations,respectively, or in 40% of the tested intervals in theMaquoketa Shale Group. In those intervals in which waterlosses were recorded, permeabilities ranged from 1.93 X 10-6 to4.92 X 10-4 cm/sec in the Carbondale Formation, 1.76 X 10-6 to6.20 ýX 10-4 cm/sec in the Spoon Formation, and 2.33 X 10-6 to4.58 X 10-5 cm/sec in the Maquoketa Shale Group. Thesepermeability values probably reflect secondary permeabilityalong infrequent joints and fractures within these formationsrather than intergranular, primary permeability of the rockmass. In addition, the upper tested intervals of the boreholesgenerally had higher permeabilities than those at greaterdepths, probably reflecting the effects of weathering on thestrata.2.4.13.2.2.2 Groundwater LevelsGroundwater levels at the time the borings were drilled in theplant area (January 1973 to April 1973) were at approximatelyelevation 595 feet. Groundwater levels recorded in piezometersinstalled during the site investigations are presented in Table2.5-32. Locations of these piezometers are shown on Figure2.5-14.Eight observation wells were installed in the glacial driftaround the power block excavation and outside the slurry trenchin late 1975 to monitor groundwater levels during construction.These observation wells were installed in pairs at varyingdistances away from the slurry trench. The locations of theseobservation wells are shown on Figure 2.4-36, and atypical detail of an observation well is shown on Figure2.4-43. Groundwater levels measured in these observation wellsare shown on Figure 2.4-44.Seepage from the sand aquifer into the power block excavationwas limited by a slurry trench installed from approximatelyelevation 595 feet MSL to 2 feet into the till underlying thesand aquifer. The combined quantities of seepage andprecipitation were controlled using a sump pump. Forapproximately 77% of the measurements, groundwater levels werehigher in the outer observation well of each pair, indicatingsome decline of groundwater levels immediately adjacent to theslurry trench due to seepage into the excavation. The averagedifference in2.4-30 BRAIDWOOD-UFSARgroundwater levels between pairs of observation wells was 0.7foot. The slight decline in groundwater levels and the smallvolume of seepage into the excavation indicate that groundwaterlevels in the sand aquifer were affected only in the immediateproximity of the power block excavation.Groundwater levels have also been measured since July 1973 inseven shallow observation wells installed around the coolingpond (Figure 2.4-45). Average monthly groundwater levels havebeen plotted from July 1973 through December 1978 for eachobservation well on Figure 2.4-45. In general, the highestgroundwater levels were observed from January through June, andthe lowest groundwater levels from July through December.These seasonal variations are not as evident in observationwell LW-I because the groundwater levels were influenced bywater levels in a nearby ditch which carries water pumped froma gravel pit located offsite. Infiltration from the ditchresulted in temporarily high groundwater levels during thesummer months of 1974, 1975, and 1976. Over the period ofrecord, groundwater levels in the pond observation wellsfluctuated within a range of 0 to 9 feet below the groundsurface, except in observation well LW-I, where the groundwaterlevel ranged from 7.5 feet to 14.8 feet below the groundsurface. The difference in groundwater elevations between theobservation wells can be attributed to the varying groundsurface elevations, local drainage patterns, and other factorsrelating to man's activities, such as pumpage from nearby minepits.2.4.13.2.3 Effects of Seepage from Cooling PondSeepage from the cooling pond should have minimal effect ongroundwater levels around the site. Seepage to theCambrian-Ordovician Aquifer is limited by the relativelyimpermeable Pennsylvanian-age shales of the Carbondale andSpoon Formations and by the Ordovician-age shales of theMaquoketa Shale Group. Seepage to the sand aquifer will belimited by a slurry trench cutoff, constructed through thecooling pond dike and generally extending 2 feet into the tillor onto Pennsylvanian-age bedrock. The cooling lake perimeterdike slurry trench is continuous around the perimeter of thecooling lake and, therefore, continuous along the north andwest sides of the essential service cooling pond (ESCP). Planviews of the ESCP and perimeter dike along the north and westsides of the ESCP are given in Figures 2.4-26 through 2.4-29.Sections of the perimeter dike and slurry trench are given inFigure 2.4-35. The slurry trench along the ESCP is asoil-bentonite backfilled slurry trench extending fromelevation 597 feet to the top of the till and, in most cases,is keyed into the till. As-built profiles are provided inFigures 2.4-49, 2.4-50 and 2.4-51. The slurry trench will be acontinuous seepage cutoff around the entire perimeter of thepond. However, the design of the ESCP does not rely on the2.4-31 BRAIDWOOD-UFSARslurry trench as a seepage barrier. The ESCP seepage has beenconservatively determined (see Subsection 2.5.6) assuming thetrench does not exist.As part of the design evaluation for the slurry trench cutoff,a prototype slurry trench test section was constructed in thecooling pond area. The test consisted of several pumping teststo determine the average permeability of the in-place soil-bentonite and cement-bentonite backfill materials. The resultsof these tests were used in the design of the slurry trenchcutoff and the cooling pond dike (Subsection 2.5.6). Themaximum permeability values determined for the in-place slurrytrench test section are as follows:Soil-bentonite (using naturalonsite soil) 6.0 X 10- cm/secCement-bentonite 4.4 X 10-6 cm/secBased upon these permeability values, the amount of seepagethrough the entire length of the cooling pond dike is estimatedto be less than 5 cfs (Subsection 2.5.6). Therefore, whenconsidering the approximately 10-mile perimeter of the coolingpondý the effect on local groundwater levels in the sand aquifershould be very small and restricted to the immediate perimeter ofthe cooling pond.Temperature and total dissolved solids concentration of the pondwater may exceed those of the groundwater in the sand aquifer.However, any effects of seepage of water of different temperatureor chemistry into the sand aquifer should be minimal due todilution of the small quantity of seepage in the rainfall-recharged aquifer. Dissolved solids concentration in the pondwill be held below effluent discharge standards by blowdown tothe Kankakee River.2.4.13.2.4 Seepage from the Essential Service Cooling PondThe results of a seepage analysis performed to determine theseepage losses from the ESCP in the unlikely event of a failureof the main perimeter cooling pond dike and loss of all pondwater above elevation 590 feet MSL are presented in Subsection2.5.6.2.4.13.3 Accident EffectsAs described in Subsection 2.4.12, the largest tanks which arelocated outside the containment building and contain radioactiveeffluents are the boron recycle holdup tanks. Each of thesetanks has a capacity of 125,000 gallons. The floor and roofelevations of the concrete cells in which these tanks are locatedare 546.0 and 583.0 feet, respectively. The plant gradeelevation is 600.0 feet.2.4-32 Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #:' GW-7 Category: GroundwaterStatement of Question:Provide the following references:(a) (Exelon Generation 2011) Exelon Generation Company, LLC. 2011.Hydrogeologic Investigation Report- Fleetwide Assessment- BraidwoodGenerating Station, Braceville, IL, Revision 1. Braceville, IL. December 2011.(b) (IEPA 2013a) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 1 Completion Report.Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.(c) (IEPA 2013b) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 2/3 and Pond AreaCompletion Report. Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.(d) (IEPA 2013c) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 4 Completion Report.Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.(e) Letter to I EPA, "Final Plan Completion Report for the VB-1, VB-2!3, and Pond,and VB-4 Areas", dated January 16, 2013.(f) Plan Completion Report for the VB-1 Area, Braidwood Generation Station,Braceville, Illinois, October 2012.(g) Plan Completion Report for the VB-2/3 and Pond Area, Braidwood GenerationStation, Braceville, Illinois, December 2012.(h) Plan Completion Report for the VB-4 Area, Braidwood Generation Station,Braceville, Illinois, October 2011.(i) Plan Completion Report for the VB-6 Area, Braidwood Generation Station,Braceville, Illinois, August 2009.(j) Plan Completion Report for the VB-7 Area, Braidwood Generation Station,Braceville, Illinois, February 2010.Response:The requested documents are attached.List Attachments Provided:1. (Exelon Generation 2011) Exelon Generation Company, LLC. 2011.Hydrogeologic Investigation Report- Fleetwide Assessment- BraidwoodGenerating Station, Braceville, IL, Revision 1. Braceville, IL. December 2011.
- 2. (IEPA 2013a) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 1 Completion Report.Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.3. (IEPA 2013b) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 2/3 and Pond AreaCompletion Report. Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.4. (IEPA 2013c) Illinois Environmental Protection Agency. 2013. Re: ExelonBraidwood Station NPDES Permit Number IL0048321 VB 4 Completion Report.Letter to J. B. Fewell, and M. E. Kanavos. March 28, 2013.5. Letter to I EPA, "Final Plan Completion Report for the VB-1, VB-2/3, and Pond,and VB-4 Areas", dated January 16, 2013.6. Plan Completion Report for the VB-1 Area, Braidwood Generation Station,Braceville, Illinois, October 2012.7. Plan Completion Report for the VB-2/3 and Pond Area, Braidwood GenerationStation, Braceville, Illinois, December 2012.8. Plan Completion Report for the VB-4 Area, Braidwood Generation Station,Braceville, Illinois, October 2011.9. Plan Completion Report for the VB-6 Area, Braidwood Generation Station,Braceville, Illinois, August 2009.10. Plan Completion Report for the VB-7 Area, Braidwood Generation Station,Braceville, Illinois, February 2010.
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY1021 NORTH GRAND AVENUE EA P.O. Box 19276, SPRINGFIr.D, ILLINoIS 62794-9276- (117)782-2829PAT qUINN, GOVERNOR LISA BONNETr, DIRECTOR .:.. ...March 28, 2013:=.:==::,::::NON'EXELON:::J., Bradley Fewell N N:E E OAssociate General CounselExelon GenerationCo mpany LLC4300 Winfield Road.W~arrenville, IL 60555Mark E. KanavosPlant Manager'Biaidwoo.d Generating Station.35.100 South Rt 53, Suite 84:Braceville, IL 60407-9619Re: Ex. elon Braidwood Station NPDES Permit Number IL0048321VB I Completion Report
The March. 1, 2010. Consent. Order required Exelon to submit a Groundwater ActionPldanto address tritium in groundwater: near: Braidwood Station's::: Vacuum Breaker #1(VB I).- to. the: Illinois Environmental Protection Agency (Illinois EPA). As a result, inJune 2006, ::Exelon submitted a Migration Ctontrou Plan, hereinafler referred to as. the"A~ction Plan!, for the VB I area to the Illinois EPA. Upon our approval, the Action Planwas implemented by Exelon. OnrJainary 16, 2013 the..- Illinois EPA received the PlanCompletion Report For The VB JArea (Completion Report).Upon review of the Completion Report for the VB I Area the Illinois EPA has determinedthat remediation at VB I is complete. Remediation objectives have been met for the VB1 area. Pumping of the Exelon Pond and recovery wells RW-5, RW-6 and RW-7 may beterminated. Sampling of monitor wells listed in Table 5.2 of the Completion Report mayceaseeand. these monitoi wells shall be properly abandoned.WeilsRW-6 and. VB-049D will be monitored until two consecutive sampling eventsindicate .tritium concentrations are below 200 pCi/L. At which time the monitor.: wellswill. be: properly. abadoned:.:. Monitoring results will be reported: in the QuarterlyProgress Reports.12?ýN. Maln St., Roýkford,.IL 61103 (815)987-77 .60 ..4302N~ Min S.. Rddor, IL8110 C819e7-7609511 ) Hairhou, SIL, Des Plain., IL 60016 fB.471294~4000 If there are further questions please contact me at (217) 785-4787.Sincerely,William E. Buscher, P.G.Manager, Hydrogeology and Compliance UnitGroundwater SectionDivision of Public Water SuppliesBureau of Watercc:, Rebecca Burlingham*Charles GunnarsonJames GlasgowRick CobbWill Co. Gen. File,Records0 ILLINOIS ENVIRONMENTAL PROTECTION AGENCY'.o21 NoRTH GRAND AVENUE EAST, P.O. Box 19276, SPRINGFIELD, ILLINOIS 62794-9276 0 (217)782-2829PAT qUINN, GOVERNOR: USA BONNETT, DIRECTOR...... ..:. .........,March 28, 2013:NON-EXELONJ. Bradley FewellAssociate General CounselExelon Generation Company LLC4300 WinfieldRoad .Warrenville, L.... .Mark E. KanavosPlant ManagerBraidwood. Generating Stationf.3.5.100 South Rt 53, Suite 84.Braceville. IL 60407-9619: -..Re: Exelon Braidwood Station NPDES Permit Number IL0048321VB 2/3 and the Pond Area. Completion Report
The March 11,2010. Consent Order required "Exelon to submit: a Groundwater, Action,Plan to address tritium in groundwater near Braidwood Station's: Vacuum Breaker #2and: #3 (VB. 2/3) to the Illinois Environmental Protection Agency (Illinois EPA). As aresult, in June 2006, Exelon submitted a Migration Control Plans, hereinafter referred toas the."Action Plans", for the: VB. 2/3 a to the Illinois. EPA. Upon our approval, theAction Plan was implemented by Exelon. On January 18, 2013 the Illinois EPA. rcivedthe Plan Completion Report For The VE 2/3 and Pond Area (Completion Report.Upon review. of. the Completion Report for the VB 2/3 Area the Illinois EPA hasdetermined that remediation at VB 2/3. is complete. Remediation objectives have been.. met for the VB 2/3 area. Pumpingof the Exelon Pond and recovery wells RW-9 andRW-10 may be terminated. Sampling of monitor wells listed in Table 5.2 of theCompletion Report may cease and these monitor wells shall be properly abandoned..Wells VB 5D, VB 4D, .P-4D, and P-13D will be monitored until two consecutivesampling events indicate tritium concentrations are below 200 pCi/L... At. which time themonitor wells wil be properly. abandoned. Monitoring results for will be reported in theQuarterly Progress Reports...4302 .Main St., Rock4ford, IL 611031615)987.7760 9511 Harris: St., D.s Plalues, IL 60016 (847)294-4000595 S. Sta, Ign IL 60123(847)606.3131 5407N. Univerity St., Arbor 113, P...Ia,. I .61614 (309)693-54622125 S. First Stn, Clialpo leg, IL 61820(217)278-5800 2309"W. Ma, St.. Suite 116, Marion, ' 62959 (618)993-72002009 Mal St., CoftsvH* IL 62234(618)346-5120 100W. Randolph, Suite 10-300, Chcago, IL 60601 (312)814. 6026..PLMA PRtIT ON RcYcLtw PAP. If there are further questions please contact me at (217) 785-4787.Sincerely,William E. Buscher, P.G.Manager, Hydrogeology and Compliance UnitGroundwater SectionDivision of Public Water SuppliesBureau of Watercc: Rebecca BurlinghamCharles GunnarsonJames GlasgowRick CobbWill Co. Gen. File,Records 4.ILLINOIS ENVIRONMENTAL PROTECTION AGENCY1021 NOrTH GRAND AVENUE EAST, P.O. BOX 19276, SPRINGFIELD, ILLINOIS 62794-9276 * (217)782-2829%PAT qUINN, GOVERNOR LISA BONNEiT, DIRECTORMarch 28, 2013J. Bradley Fewell NON-EXELONAssociate General CounselExelon Generation Company LLC.4300 Winfield Road:Warrenville, IL.60555Mark E. KanavosPlant Manager....Braidwood Generating Station%~35 100 South Rt 53, Suite 84Braceville, IL 60407-9619Re: Exelon Braidwood Station NPDES Permit Number IL004832 1.VB 4 Completion Report
.The purpose of this. letter is to inform you that on December 19, 2011 the IllinoisEnvironmental Protection Agency, approved the Plan Completion Report For The VB 4.Area (VS 4-Report). Please see the attached. A letter dated November 8, 2011 from Mr.Kanavos had previously requested Illinois EPA review and approve a VB 4-Report datedOctober 21, 2011. 1 trust this will address the VB 4 Report referenced in the January 16,2013: letter from Mr. Kanavos.If you have further questions please contact me at (217) 785-4787.ISincerely,William E. Buscher, P.G.Manager, Hydrogeology and.Compliance UnitGroundwater SectionDivision of Public Water SuppliesBureau of Water..Inclosure :cc: Rebecca BurlinghamCharles GunnarsonJames Glasgow.:..Rick CobbWill Co. Gen. File,Records.4302 N. Main St., Rockford, IL 61103 (815)987-7760595 S. State, Elgin, IL 60123 (847)608.31312125 S. First St., Champaign, It 61820 (217)278-58002009 Mall St., Collinsville, 1. 62234 (618)346-5120... 9511 Harrfls St, Des Platnek, IL 60016 (847)294-40005407 N. University St., Arbor 113, Peoria, I1 61614 (309)693.54622309 W. Main St., Suit* 116, Marion, IL 62959 (618)993-7200.100 W. Randolph, Suits 10-300, Chicago, IL 60601 (312)814-6026PLEASE PRrr ON RECYCJPI .PAPER: ILLINOIS ENVIRONMENTAL PROTECTION AGENCY1021 North Grand Avenue East, P.O. Box 19276, Springfield, Illinois 62794-9276 i (217) 782-2829lames R. Thompson Center, 100 West Randolph, Suite 11-300, Chicago, IL 60601 a (312) 814-6026PAT QUINN, GOVERNORDecember 19, 2011Mark E. KanavosPlant ManagerBraidwood Generating Station35100 South Rt 53, Suite 84Braceville, IL 60407-9619Re: Exelon Braidwood Station NPDES Permit Number IL0048321VB-4 Plan Completion Reports
The May 24, 2006 Agreed Preliminary Injunction Order required Exelon to submit aGroundwater Action Plan to address tritium in groundwater near Braidwood Station's VacuumBreaker #4 (VB 4) to the Illinois Environmental Protection Agency (Illinois EPA). As aresult, in November 2006, Exelon submitted a Minimize Impairment Plan, hereinafter referred toas the "Action Plan", for VB 4 to the Illinois EPA. Upon our approval, the Action Plan wasimplemented by Exelon. On November 9, 2011 the Illinois EPA received the Plan CompletionReport For The VB 4 Area.Upon review of the Plan Completion Report for the VB 4 Area the Illinois EPA hasdetermined that remediation at VB 4 is complete. Remediation objectives have been metfor the VB 4 area. Sampling of monitor wells at VB 4 may cease and the monitor wellsshall be properly abandoned.If there are further questions please contact me at (217) 785-4787.Sincerely,William E. Buscher, P.G.Supervisor, Hydrogeology and Compliance UnitGroundwater SectionDivision of Public Water SuppliesBureau of Watercc: Rebecca BurlinghamCharles GunnarsonJames GlasgowWill Co. Gen. FileRecordsRockford* 4 102 N. Main St.. Rockford, IL b1103 .1815) 987.7760 Des Plaines e 9511 W. Hdrrison $I, Des Plain.es, It 60016 a (847) 294-4000Elgin
- 595 S. Stale, Elgin. 11. 60121 3 (847) 60F8-3131 Peoria .54 15 N. University St., Peoria, IL 61614 -13109) 693-5463Bureau of Land -Peoria , 7620 N. Univerfily St., Penria, It b161l4
- 1309) 69.1.5462 Champaign .2125 S. First St., Champaign, It 61820 e (217) 278-5800Collinsville .2009 Mail Street, Collinsville, I1 62234 .1618) (46-5120 Marion a 2309 W. Main StL, Suite 116, Marion, IL 62959 .(618) 993-7200 Exelon Generation Company. LeCExelon Generatio .r Nuclear Power Station35100 South Route 53, Suits 84Bracevile, IL 60407-9619www.exeloncorp.comJanuary 16, 2013Bw130003Mr. Bil BuscherIllinois Environmental Protection AgencyBureau of Water, Division of Public Water Supplies1021 North Grand Avenue EastP.O. Box 19276Springfield, Illinois 62794-9276
Dear Mr. Buscher:
Subject:
Final Plan Completion Reports for the VB-1, VB-2/3 and Pond, and VB-4AreasExelon Braidwood Generating Station is submitting the Final Plan Completion Reports forthe VB-1, VB-2/3 and Pond, and VB-4 Areas as outlined in the Consent Order. The plansprovide a summary of the actions taken to remediate groundwater along the BraidwoodStation blowdown line and the actions to terminate this remedlation process.Per your request, Braidwood Station will continue to monitor wells with detectable trfltumconcentration until two consecutive sampling events with non-detect analyses are obtained.The data obtained from this additional monitoring will be provided to the IEPA on a quarterlybasis. Once two consecutive non-detects are obtained on a particular well, it will be notedon the quarterly report for termination of sampling and well abandonmentWith the approval of these reports, Braidwood Station will move to the next phase of ourtritium management strategy. As discussed with you and as outlined in the Plan CompletionReports, fth Station will continue to monitor select monitoring wells located in theremedlatlon areas that are part of its Radiological Groundwater Protection Program.The Station intends to maintain public transparency regarding all actions in these reportsand others associated With follow-up monitoring. If you have any questions or needadditional information, please contact Jamison Rapeport, Chemistry Manager at (815) 417-3200.Respectfully,Mark E. KanavosPlant ManagerBradwond Generating Station Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-1 Category: Surface WaterStatement of Question:Provide the agreement with the Illinois Environmental Protection Agency (IEPA) limitingBraidwood's consumptive use of surface water.Response:Attached is a letter from Illinois Department of Transportation Division of WaterResources (now Illinois Department of Natural Resources) to the U.S. Department of theArmy, dated April 7,1977, which stipulates the conditions, agreed to by CommonwealthEdison Company (now Exelon Generation) regarding withdrawal of water from theKankakee River.Also attached is Permit No. 15039, issued by the Division of Water Resourcesauthorizing construction of the river screen house and blowdown outlet for BraidwoodStation. Special Condition m.1 in this permit requires compliance with the conditionsstipulated in the April 7, 1977 letter from the Division of Water Resources to theU.S. Department of the Army.List Attachments Provided:1. Illinois Department of Transportation Division of Water Resources, 1977. Letter toU.S. Department of the Army, District Engineer regarding Issuance of a permit toconstruct the screen house and blowdown structure for a Commonwealth Edisonplant on the Kankakee River. April 7, 1977.2. Illinois Department of Transportation Division of Water Resources, 1977. Permit No.15039 to construct a river screen house and blowdown outlet on the Kankakee Riverfor the Braidwood Station. April 29, 1977. IllinoisDepartment ofConservation:life ond d togetheDavid KenneyDIRECTOR605 STATE OFFICE BUILDING e400 SOUTH SPRING STREET *SPRINGFIELD 62706CHICAGO OFFICE -ROOM 100. 160 NO. LASALLE 60601April 7, 1977Colonel Andrew RemsonDistrict EngineerDepartment of the Army219 South
Dearborn StreetChicago,
IL 60604NON-EXELON
Dear Colonel Remson:
The Illinois Department of Conservation has completed its discussions with theCommonwealth Edison .Company and its review of their permit applicationa-toconstructa screenhouse and blowdown structure on the Kankakee River near NaidI: d¶The company has agreed to have the following stipulations become part of the permit:1. To limit withdrawal of Kankakee River water to a maximum of 160 cfs.2. To stop withdrawing water from the river when the flow is 442 cfs (the 7-day,10-year low), or less; and not to withdraw water such that the flow of the riveris diminished below 442 cfs.3. To carry out construction of the intake structure in such a manner as to.minimizeimpact on the riffle areas. If dynamite is used during construction, small chargeswill be detonated, to move fish away from the area before heavy blasting is done.The Department of Conservation will be invited to have a representative present.during blasting to offer advice and to make an estimate of fish loss, if any, forthe purpose of determining the dollar value of the fish for reimbursement to theFish and Game Fund.4. To keep disturbance. of the wetland prairie (Sk Sec. 16, T32N, R9E) to a minimum byplacing the pipqline as far north as possible and to maintain the area as a naturalprairie. The Company has also agreed to consider dedicating this area as a NaturePreserve and to fence the work zones to protect the remainder of the prairie duringconstruction.35. Noc to disturb the mussel beds located in the area of Horse Greek.Our objections may be deemed lifted upon your receipt of a letter from CommonwealthEdison agreeing to the stipulations contained in this letter. It should be recognizedthat by lifting its objection, the Department of Conservation gives up none of itsprerogatives for future action. through whatever channels may be available at. the time.Thank you for.your cooperation.BAR:mjkcc: D. Vonnahme, IDOTNuclear Reg. Comm. -Aohn HughesAl HeideckeVic Saulys, U.S. EPAJim Park, Ill. EPABruce Klinel US. FWSSincerely,Bruce A. RogersSupervisorDivision of Long Range Planning -TI7--my Igo ir9"Subject;. Rive Intabu andBpaonom, outletkBiraidiod StationNmusra. J. P.No1aclskyAttached :or Vmw' file Is a okNo. 15033, issued by thie State af flhi1mai7a on1ofWater Reacowees an April 29# l7T7. Butherizing theconfstrucztion or a river marten house and blowdown outlet'a" associat.#* Ire4igatg and excavation along thw southbankc Aj the ý&Atkako NJve at our Braidwood GeneratingStation alito,It is% ow wdrstaindga that the Vi.3. Aramy,corps. of tinive~rs,, has not Issued a pez'mit at tiJts timeubehn me 1* z-ooeived will you pleaw. fa'ar a copy totnis of fice f w our frIle.29. J. NiemeReal Estate DepartimentMB i ;rkvAtt.CC; R.* Cascarano -Attached Is a copy of the above permfitf or yew' Mis. 4~vu6g..IISTATE OFILLINOISPERbfrrN? 15039Pepartinenr of T4ranzortarionVituison of ga~ter R(csurra2100 *0Gth fIkMn :P2ftkWS_ pringkidt DO$ 62761pcniso"M 3s lircb! (rauccd"Is 7729th dw d AprilToCOMMONWEALTH EDISON COMPANYP.O. BOX 767CHICAGO, ILLINOIS 60690ITo construct a river screen house and blowdown outlet and toperform associated dredging and excavation all along thesouth bank of the Kankakee River at the permittee's BraifvoodPower Station in the SE 1/4 of Section 13, Township 32 North,Range 9 East of the 3rd Principal Meridian, Will County,in agos w a dd June 13, 1974 .mdbdo MW =mmdN 46BRAIDWOOD STA. UNITS 1 & 2 -PROPOSED RIVER SCREEN HOUSE AND BLODL WNOUTLET IN THE KANKA~tE RrIVER AT BRAIwooD)POWER STA. 1/19/77 SHUZTS 3 OF 3fil~ed 7rn.h th~e Departlent Of TranUpOrtl*Uon and madte a peet benmf, mand MbJWe to I" tw and mpo"~ OmWdhKO leatbW bsd hEaramined a.em idThief, Pureau~ U Lan~orn1f & rid, &OYi:r .Wis~e, Resource Regulation=-
- 1n acowdan.. with an application dated June 13, 1974 .aaabh adBRAIDWOOD STA. UNITS I A 2 -PROPOSED RIVER SCREEN HOUSE AND SLOWDOWNOUTLET IN THE KANKACEE RIVER AT BRAIDWOODPOWER STA. 1/19/77 SHEETS 3 OF 3f,,e onth the Deparynment o( Tranavartatim and made a OW bnv oa, amd wbjewt to til to ad M boisu de:k-Wise, Reosource RegulationC/ 4 *-V ~ ( , j~~~ALanV7 a ordm.. .. I II Inni ....___ _____ m ~ I/I----This Aceovpsaae Mut Be RLam d Udutm WNS hIsOCrATE 0F IMLA~SIDeparnurnt of TrwEf3t~iion ofr f RCtF imE23W SfOITH DINK5P.N PARKWAN? 15039pmodo ad 0*Th-e undemignad permittee. personally. or if a eorpoat~on by Its doly au~mbAr~same s&-. s number no trhm coupon subjart to all the aondidona named thawsi, on tnu~_U tTUcagoI-FCONMOMWAZAM 10DISO1 CONPANY" ., d~ -vice.-Prealient=
THtU M3UMMIs otiiect to the falieloemad sutionm:(a) Thin per"i Is granted in s1 M mr wit an "kat tled4t "AN ACT in Mlatinn to the regulationsol theriveralakes sAnstream, of the gstts of Illinois." approved June 10, iP1I.(b) This permit does not conv*ey of reengnase any title of the Permittee to atY submerged or other lands, and ftwtberiort-, do"enot convey. lea* or provi1de any rig ht or rights of occuapancy or use of the puhile or private property on which the propmosd pr';frdor amy part thereo( will be located, or otherwise grant to the Penrmitttr any right or interest in or to maid property whether maidproperty is owned or pemins by the State of Illinois or by any private or public party or part!@%.(e) This pe.sit does not In any way release the l'ermittee from any liability fnr damage to persons or prolmrty caused by orre.ultilg from the work covered by this permit, and does not sactlion any Injury to private pruperty or i;wmaiomi or privatp right.. orInfringsenit of my Federal. State or lomI laws or OtfgUatSUoe.(d) The Permittee shall remove all piling, coflerdame, falee work, excavation and the material incident ti tim o.motruction of theproject herein authorimzed, fromn the river, stram or lake in which the work is done, at his own expense. ShLid 4the Pmitttr fail toremove such strmetrm or material, the State reserves the right to have much rpmoval made at t he expe-rnr of the Permrittee. If f utureoperations for public navigation by the State or Fede"al Government or public interests of any crýrrt-.r neemtatat arny changew Ir !he.position of any part of the structure nr structures herein authKmr4.ed, such changes shall be made by and at t he expense of the Permittteor his saemeors in such manner a shall be fixed and detenrined by the State uf Illinois, acting by and through the Drpart,.'nt ,c!Trampottation, or other property coemlituated amgscy. and within sixty (60) das tnrom receipt of wrttsr, notice of such nemeity ruimsaid Departmuet or other properly agmec.(e) If the work here permined is not completed on or , aLbr 31, 1980 -this p urmitmavowm sad be null m&d void.(f) The eoecution mad detali of the work eb mathoed shall be subim to the mpervimm and approvali o the DspsrUtMUtof Trmasportatow-Diision of Water Aeaeurees.(g) Starting work on the comstrucUtioa bereby nthorised "hal be emoldwed full s tasAsm by the Pemitts of all the terma sadeonditioms of this permit however, the attached acemptanm, properly uecuted by the Permitte. must be filed In the offie of theDepartment of Transportation. Division of Water Resource, Springfleld, Illinois, within sixty (601 days of the date Itherof orthim permit shall be null and void.(hb There shall be no deviation from the plans submitted and hereby approved unlm the proposed change in plano shall firsthave been submitted to and approved, in writing, by the State of Illinois acting by and through its Deportment of Transportation.(I) The Depamtment of Transportation in .sulhg this permit has relied upon the statemearit and reprmesntations made by thePenrnittee in hi application therefor, and In ass any statement or repreentatlotn in smld application is found to be false, this permitmay be revoked at the option of the Department of Transportalion, mad when so revoked all Tights, ud the Permittea hereunder shallthereupon and thereby become null and void. 7-)(j) If the Permittee is required by an act of Congress to obtain a permit from any Federal authority for lave to do the thingsgranted by this permit, then such Federal permit shall be obtained before this permit becomm deective.(k) If the project authorized herein is loeated1iin or along a lake, the Permittee or his succors shall make no claim whatsoeverto any right, title or interest in and to any aecretions caused by the construction of said project, and by the acceptance of this permitagrees to remise, convey, release, and quit-claim unto the People of the State of Illinois, for the use and benefit of the public, all rightsto any accretions which may accrue to said real mtate because of Wad project.(1) In imuing this permit, the Department of Transportation shall not be considered as approving the adequacy of the desivn orstructural strengtb of the proposed structure or Improvement.(m) This permit i subject to further special ondltiow as follows:1. This permit is void unless approval for the proposed work issecured from the Corps of Engineers, U.S. Department of theArmy.2. The permittee shall comply with the five stipulations listedin the Illinois Department of Conservation's April 7, 1977letter to the Division of Water Resources.* 1Y *J ~.... ......... 061;'-4.. l I..\vLpg." :ýfs 's* .4 .1I.1.4.1.4 A44 .4.4U4,. 5 ' LA.I.%.4...4-4..t..4'a00;qMAL ' ý4I -..4I'ImrUITC % IA7 PiaI ',-,ulIA'A WoOromat -I~DI *.4. .:'~~ \13 7 41, ý CIL... ... !!n alg.* *ihjso e..'Co P -.AX'-r WLl..&c. 'JIVI-r IL%!A'8c&~g~ ~ AýIiT- -:z..C1 a' d9 F.Jo% uUoCUICPI P~.& -a-it___________2_2E__4 W--------- 4ý45a c-jim,arJ1ý0,116JI'4e.- 1L. jýwcS"T~r 1tillnvil A-Q.100SLW-f COmAW 4.a" %b&-~: 'TLI~I -t'LA~LS.'~.C~ALI. h~1~0' p1.3__EWA.VZ$Frg4:,~EL. 0%* -*4 ~4.*.-. ~nt.*.- "buome We-.a.itC LI. I -, , ( a. .c; 111% 4 -, -11 .1.-Mwn; 5-LL ML_ S2.ThaSr:cT~o~.2_~-A~~5eAs.i~2~!tv~~Cl) C7hh7I~~L ~' ra IIJa&tP4-"1k: -4f .&jj,:.Q 4L 1'L ita j..ErC: c. k! C -C-~- YVal -%: & r- :^vrl,. butpla ~.* flo .ad'sea, Ir 0 54C04Z-, ~~7,ins a 1DAUING NOnl --- --------454 1i " -,.Ii'Its,. Vll.JO LL .IN~~~~1~~ 'A ___Ql fzt - 40.a-i ~ ev bIL'Ib L ..!L3XGOSI CO.r, __________l_-___________LL__.., ~~~~ ~m No , ~ .~~.QP~L~ 104b' OL1&.,';c4 Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-2 Category: Surface WaterStatement of Question:Provide the reference, "Braidwood Storm Water Pollution Prevention Plan."Response:The requested document is attached.List Attachments Provided:1. Exelon Nuclear 2006. Braidwood Station #20, NPDES Permit No. 1L0048321,Storm Water Pollution Prevention Plan, Revision 5, July 2006 SWPPP Revision 5July 2006EXELON NUCLEARBRAIDWOOD STATION #20NPDES PERMIT NO. IL0048321STORM WATER POLLUTION PREVENTION PLANREVISION 5NP *S Coordlnator/Environmental SpecialistEnviroln'ental SupervisorDate:Date: _______.III SWPPP Revision.5July 2006RECORD OF REVISIONSRevision Description of Revision ImplementationNumber Date0 Initial preparation 2/29/961 List Sample dates; clarification; reissued permit 10/30/972 Add gasoline and diesel storage tanks, remove 6/14/99temporary facilities associated with Steam GeneratorReplacement, update Sewage Sludge.Permit No.3 Exelon name change, spill history update, plan 6/12/01_ additions, removal of compliance manager title.4 Text Revision/Addition 9/015 Update plan, Chemical vendor changes 5/06Ii i6 I2 SWPPP Revision 5July 2006STORM WATER POLLUTION PREVENTION PLANINDEXContents SectionStorm Water Pollution Prevention Plan 1Facility and Site Maps 2Sample Data 3Inspection Results 4Storm Water Permit Application 5NPDES Permit: Special Condition No. 8 6Training Documents 73 SWPPP Revision 5July 2006PURPOSEThe purpose of the Exelon Nuclear Braidwood Station #20 Storm Water Pollution Prevention Plan is to complywith Special Condition No. 8 of the Station's NPDES Permit no. IL0048321 (Permit effective date: September 1,1995; reissued August 28, 1997) regarding storm water discharges associated with industrial activity. This plan isapplicable to storm water runoff which is NOT processed by the station's wastewater treatment facilities.FACILITY DESCRIPTIONBraidwood Station is a nuclear powered electrical generating and distribution facility located in northeastern Illinoisapproximately 50 miles southwest of Chicago, 20 miles south-southwest of Joliet and 3 miles southwest of theKankakee River. The former strip mined land provides adequate space for the 4454 acre site. The site is locatedin the southwest comer of Will County, bordered on the west by Grundy County and on the south by KankakeeCounty. For convenience of description the site can be divided into (1) the main site area consisting of 556 acresand (2) the pond area consisting of 3898 acres. (figure 1) Approximately 50% of the main site is impervious tostormwater.All storm water runoff from plant areas associated with industrial activity, which may contain oil, flows through abelow-grade oil separator prior to entering the station's North Site Stormwater Runoff, outfall No. 002. Stormwater from a portion of the main site to the south and to the east of the plant area enters the South SiteStormwater Runoff, outfall No. 003, and the 345KV switchyard area storm water runoff is directed to a below-grade oil separator prior to entering the Switchyard Area Runoff, outfall No. 004.North Site Stormwater RunoffThis drainage includes the main plant area. Inside the main plant area there are several storage areas that havebeen delineated on the prints. The new and used oil storage area is bermed and sloped to direct storm water toan oil separator. The diesel oil storage tanks are located within a bermed area to prevent runoff. The diesel oilunloading station has a bermed concrete pad sloped to a catch basin to collect spillage that may occur during theunloading process. A bulk lime storage silo is located just outside the make-up demineralizer building. Thehousing surrounding the silo has a raised wall to retain any leakage from the silo. Transformers located within theplant area have underdrain systems directed to the oil separator prior to discharge to the North Site StormwaterRunoff.The Mixed waste building located east of the U-1 Transformer area utilizes tubs to contain potential spillage fromwaste which may be stored in the building. Also inside the main plant area are sewage treatment sludge dryingbeds which provide a means of dewatering sewage sludge. The beds are concrete bermed with an underdrainsystem to direct the liquid, including storm water, back to the sewage plant for reprocessing. A gasoline storagetank is located east of the Sewage Treatment Plant. The tank is a double wall tank with leak detentionInstrumentation installed. A fire training area Is located to the north of the main plant area. No products are storedin this area.A spare main power transformer is stored on a new permanent foundation in the main plant area. The foundationhas an oil containment pit and drain sump. The sump has an oil stop valve on the outlet that will allow drainage ofstorm water to the existing site oil separator.This runoff receives flow from the main plant area, which includes warehouses, which may contain inertconstruction products such as lumber and other non-hazardous construction supplies, and remote office facilities.The area north of the plant, which was the old construction parking lot, was excavated, covered with topsoil andre-vegetated following initial construction. This area drains to the North Site Stormwater Runoff.The majority of the land within the main plant area has established vegetation. The roadways have been paved tominimize erosion as noted on the site map.4 SWPPP Revision 5July 2006South Site Stormwater RunoffThis runoff receives storm water from the area south and east of the main plant. The area includes an abandonedconstruction laydown area which has been re-vegetated. A large portion of this area was covered with topsoil andvegetation re-established following construction. Several warehouses were demolished following constructionand the concrete foundations (pads) are used for storage of construction supplies such as lumber, scaffolding andpiping. This area will be monitored for cleanliness.A permanent storage facility for the Old Steam Generators, has been constructed In the South Site Area. Nopotential pollutants will be stored in the area and the contents of the building will not be exposed to storm water.A Gasoline Storage Tank and Diesel Fuel Storage Tank is located In this area. Each tank is double wallconstruction with leak detection instrumentation installed.Chemicals used for treatment of the Circulating Water and Service Water Systems; Sodium Hypochlorite, SodiumBromide, Nalco Corrosion Inhibitor and Nalco Silt Dispersant. Storage Tanks are located outside the Lake ScreenHouse. Each tank is double wall construction with leak detection indication installed.Switchyard Area RunoffThis runoff receives storm water from the 345KV Switchyard. The switchyard area has an underdrain systeminstalled to collect and route stormwater through the switchyard oil separator prior to discharge to an unnameddrainage ditch.Runoff from the North Site Stormwater Runoff, the South Site Stormwater Runoff and theSwitchyard Area Runoff combines to form an unnamed drainage ditch to the Mazon River.POTENTIAL POLLUTANTSSianificant Material StoraaeThe following potential pollutants are stored outside the main buildings at Braidwood Station:Material/StorageLime SiloFuel Oil Storage TanksNew/Used Oil Storage.Unit 1 Transformer AreaUnit 2 Transformer AreaMixed Waste BuildingSpare Main Power TransformerFire Training AreaGasoline Storage TankGasoline/Diesel Fuel Storage TankSodium HypochloriteSodium BromideNalco Corrosion Inhibitor & Silt DispersantPlant LocationWest Side of Turbine BuildingWest of Turbine BuildingWest of Turbine BuildingNorth of Auxiliary BuildingSouth of Auxiliary BuildingEast of Unit 1 Containment BuildingEast of Unit 1 Containment BuildingNorth of the Main Plant AreaEast of Sewage TreatmentSouth of Sewage TreatmentLake Screen HouseLake Screen HouseLake Screen HouseDrawing Location12345678910111213II5 SWPPP Revision 5July 2006Potential Pollutant Sources -North Site Stormwater RunoffThe following are potential pollutant sources to the North Site Stormwater Runoff:MaterialLime SiloFuel Oil Storage TanksNew/Used Oil StorageUnit 1 Transformer AreaUnit 2 Transformer AreaMixed Waste BuildingFire Training AreaGasoline StorageDrawing Location123456786 SWPPP Revision 5July 2006The Fuel Oil Storage Tanks and the New/Used Oil Storage areas are bermed and the Unit I and Unit 2Transformer Areas have underdrain systems to collect leakage. Storm water from these areas are directed to anoil separator prior to discharge to the North Site Stormwater Runoff. These areas are monitored under theBraidwood Station Spill Prevention Control and Countermeasure Plan.The Lime Silo Is located outside the Turbine Building near the make-up demineralizer building. The housingsurrounding the silo has a raised wall to retain any leakage from the silo. The Mixed Waste Building locatedeast of the Unit 1 Containment, utilizes tubs to contain any leakage/spillage from wastes which may be storedinside the building. The mixed waste is not exposed to storm water.The Fire Training Area is used only for training onsite personnel. There are no chemicals or materials stored inthis area. All fuel (propane) is brought in for the training session and removed at the end of each session. Nopotential pollutants are stored in this area.The Gasoline Storage Tank is used to refuel vehicles inside the main plant area. The tank is double wallconstruction with leak detection instrumentation installed.Potential Pollutant Sources -South Site Stormwater RunoffThe following are potential pollutant sources to the South Site Stormwater Runoff:Material Drawinrq LocationGasoline/Diesel Fuel Storage 10Sodium Hypochlonte Tank 11Sodium Bromide Tank 12Nalco Corrosion Inhibitor & Silt Dispersant 13The Gasoline and Diesel Storage Tanks are used to refuel vehicles outside the main plant area. The tanks aredouble wall construction with leak detection instrumentation Installed.The Sodium Hypochlorite, Sodium Bromide and Nalco Corrosion Inhibitor and Silt Dispersant are locatedoutside the Lake Screen House. These tanks are all double wall construction will leak detection equipmentinstalled in each of the tanks.The remainder of this area consists of reclaimed construction laydown area which had vegetation re-establishedfollowing construction. There are some non-hazardous construction supplies stored in the area on existingconcrete foundations which were once warehouses.Potential Pollutant Sources -Switchyard Area RunoffThe six 345KV Oil Circuit Breakers each contain 10,230 gallons of oil and are monitored routinely for oil loss.Any crushed stone surrounding the equipment is to be replaced if it becomes significantly contaminated with oil.The oil circuit breakers are monitored under the Braidwood Station Spill Prevention Control and CountermeasurePlan.7 SWPPP Revision 5July 2006History of ReleasesSpills of potential pollutants associated with the North Site, South Site and Switchyard Area Runoffs are listedbelow:Date12/19/90MaterialQuantityCommentsDiesel Fuel -8000 gal underground supply line leak caused approx. 8000 gal leak -area cleaned & monitored -majority of oil recovered in oilseparator -cleanup activities coordinated through PrairieEnvironmental Specialists8/22/9510/4/951/16/963/20/986/24/00Hypochlorite300 galDiesel Fuel 30 galHypochloriteDiesel Fuel-3500 galUnknown>15 galhose connection on unloading line came apart during receipt ofhypo -most of the spill was contained inside tank berm -remainder was collected and transferred to wastewater treatmentplantdispensing equipment failure, cleaned blacktop with Oil Dri andcontaminated soils collected and placed in drums for disposal.due to an equip failure the Chlorination system injectedhypochlorite Into the circulating water system for approx. 21hours -all hypo was injected into the circ water directly to thelake -based on size, recirc time and demand within the lakethere was no release of chlorine -blowdown was monitored withno detectable chlorine found -this event had no impact on stormwater dischargesresidual contamination found during constructionactivities -excavated contaminated soils for disposalDiesel Fuel -4500 gal Oil separation overflow during extremely heavy rainfall -oilremoved from drainage ditch -oil and sediments removed fromoil separator -Investigation revealed leaking diesel oil transferlines -Ul lines replaced; U-2 lines were removed from service.5/15/034/22/04UnfilteredDrinking Water UnknownUnchlorinatedDrinking Water UnknownLow Conductivity Sump discharge line leak resulting in unfiltereddrinking water running into Runoff.Leak in Ultrafiltered Water Storage Tank inside ReverseOsmosis Trailer. Water ran onto floor of trailer and into stormdrain. Following repair on 4/23/04, the tank leaked again whenthe system was started 4/26/04. Station personnel took promptactions to eliminate leakage on both occasions.Summary of Existing Samoling DataThe following samples were obtained as part of the permit application process. Sample results are included asan appendix in Section 3.Sample DateLocation10/07/9610/07/9610/24/91North Site Stormwater RunoffSouth Site Stormwater RunoffSwitchyard Area Runoff8 SWPPP Revision 5July 2006STORM WATER MANAGEMENTStorm Water Pollution Prevention Plan AdministratorsCompliance with NPDES permit conditions and limitations, including those associated with storm water runoff, isthe responsibility of the Plant Manager. Development and implementation of the Storm Water Pollution PreventionPlan is the responsibility of the NPDES Coordinator. The NPDES Coordinator and the Environmental Supervisorfunction cooperatively to ensure compliance with the conditions and limitations of the station NPDES permit as itapplies to storm water runoff.Storm Water ManaaementEngineering controls employed for the prevention of pollutant spills have been described previously In the'Potential Pollutant Sources' section of this plan, and are summarized below:Material Drawina Location Engineering ControlLime Silo 1 Raised wall (berm) surrounding silo to collect any leakage fromthe siloFuel Oil Storage 2 Tank area Is bermed; leakage collection system at unloadingareaNew/Used Oil Storage 3 Bermed and sloped to direct storm water to oil separatorUnit 1 Transformer Area 4 Underdrain system directs flow to oil separatorUnit 2 Transformer Area 5 Underdrain system directs flow to oil separatorMixed Waste Building 6 Storage inside -not susceptible to storm water. Waste stored intubs to contain spillageSpare Main Power Transformer 7 Sump with Oil Stop ValveFire Training Area 8 No waste products stored on siteGasoline Storage Tank 9 Double wall tank with leak detection instrumentationGasoline/Diesel Storage Tanks 10 Double wall tanks with leak detection instrumentationSodium Hypochlorite Tank 11 Double wall tanks with leak detection indicationSodium Bromide Tank 12 Double wall tanks with leak detection indicationNalco Corrosion Inhibitor andNalco Silt Dispersant 13 Double wall tanks with leak detection indicationAdditionally, the station operation personnel perform daily rounds, which include general area inspections forhousekeeping and hazards such as leaks. As part of this plan the NPDES Coordinator will also perform routineinspections. On-site separators are monitored for oil and sediment levels under the station surveillance program,OBwOS OD-Q1 Oil Separator Oil Level Quarterly Surveillance and OBwOS OD-SAl Oil Separator Residue LevelSemi-Annual Surveillance. The surveillances include levels for corrective actions. Corrective maintenance isperformed under the station's Nuclear Work Request Program.While conducting construction activities, silt fence, or other erosion control measures will be used as necessary toprevent excavated materials from entering storm drains.I9 SWPPP Revision 5July 2006SPill Response and Existing Manaaement PlansSpill response is In accordance with station procedures BwAP 750-4, Hazardous Material Spill Response andBwVP 800-9 Braidwood Station Spill Prevention Control and Countermeasure Plan. The Operating FieldSupervisors are designated as the Hazmat Incident Commanders and are trained in this capacity.The control of chemicals on-site, including storage, handling, disposal and the introduction of new chemicals to thestation, is the responsibility of the Chemical Coordinator. Station procedures EN-MW-501, Chemical Control, andEN-AA-301, Managing Regulated Wastes provides the guidance and instructions for the implementation of theseprograms. These programs are controlled and administered by the Chemistry Environmental Group.Sediment and Erosion PreventionFollowing initial construction, the construction parking lot north of the plant area was excavated, regraded, topsoilapplied and the area was re-vegetated to minimize erosion. The construction supply laydown areas surroundingthe plant were also graded and replanted with vegetation following construction. Most roadways and 'high traffic'areas within the main plant were paved to minimize erosion. The existing gravel parking areas were also paved.While conducting construction activities, silt fence, or other erosion control measures will be used as necessary toprevent excavated materials from entering storm drains.EmlLovee TrainingStation employees receive training on good housekeeping in an industrial environment. Members of the OperatingDepartment, including the Operating Field Supervisors, receive specialized training in hazardous material spillresponse, which includes measures to prevent the spread of hazardous materials into storm water runoff.Individuals responsible for waste water management and chemical control, specifically the EnvironmentalSupervisor and the Chemical Coordinator, will be trained on the contents of this plan. The Operating Field eSupervisors (Haz-Mat Incident Commanders) will also be trained on this plan. Other individuals may also receiveStorm Water Pollution Prevention Plan training as deemed necessary by the NPDES Coordinator. This trainingwill be conducted by the NPDES Coordinator or other qualified designee.Storm Water Pollution Prevention Plan training will be conducted Initially as part of the implementation of this plan.Training should be conducted annually following implementation and when conditions change which may result innew potential pollution sources.10 SWPPP Revision 5July 2006INSPECTIONS, RECORDKEEPING AND REPORTSInspectionsAn annual facility inspection shall be performed to verify that all elements of the Storm Water Pollution PreventionPlan, including the site map, potential pollutant sources, and storm water management practices are as presentedin this plan. The inspection shall include the North Site Stormwater Runoff, South Site Stormwater Runoff and theSwitchyard Area Runoff in addition to the remainder of the main site area. Observations that require response willbe retained as part if this plan along with the appropriate response. An Inspection report will be prepared alongwith documentation of any required responses.Inspections may be required at other times due to incidents such as equipment malfunctions, spills, orconstruction activities. Reports shall be prepared for any additional inspections in the same manner as the annualinspection.Inspections will be conducted by the NPDES Coordinator or qualified designee and documented on the inspectionform contained within this plan.RecgrdkeeoinciThe NPDES Coordinator is responsible for all recordkeeping requirements associated with this plan. Inspectionrecords and spill reports will be available for inspection.ReoQortlnaIn accordance with Special Condition No. 8 of the Braidwood Station revised NPDES permit (issued August 28,1997), an annual report will be submitted to the Illinois Environmental Protection Agency which shall include theresults of the annual inspection. The report shall also include documentation of any event which would haverequired an inspection, the results of the Inspection, and any subsequent corrective actions.If inspections are performed more frequently than required by Special Condition No. 8, the results shall beincluded as additional information in the annual report.11 SWPPP Revision 5July 2006STORM WATER INSPECTION CHECKLISTName of Inspector:Date:Inspection Area Are pollution prevention methods effective?North SiteStormwaterRunoffLime SiloFuel Oil StorageNew/Used OilStorageUnit 1 TransformerUnit 2 TransformerMixed WasteBuildingSpare Main PowerTransformerFire Training AreaGasoline StorageTankSouth SiteStormwaterRunoffGasoline/DieselStorage Tanks'SodiumHypochlorite TankSodium BromideTankNalco CorrosionInhibitor & SiltDispersantSwitchyard AreaRunoff345 KV Oil CircuitBreakersMain Site Area12 SWPPP Revision 5July 2006Are there new potential pollutant sources present?List actions taken/initiated:Do conditions exist which require further action?Does the Storm Water Pollution Prevention Plan accurately describe existing plant conditions?Comments:13 00SWPPP Revision 5July 2006TRAINING RECORDDate Trainee Title Trainer Comments& 4 4 I4. 4. .9 I-t .9 It .t I4 4 It .? I tI i I tT I 4.t .t II .t IT4 4 I II II 1 I tI 1 I 4I I I 47 ¶ IA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _14 Il-ant...1 110fl=~FMion s,/If12ogIgRmincx>S~A C StAtE-----a-- ~1* = -U- .~tZfl¶JtI~tr.L1 4\\\6II' ________L/-j Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-3 Category: Surface WaterStatement of Question:Provide a status summary of issuance of Braidwood's National Pollutant DischargeElimination System (NPDES) permit that expired September 1, 2000.Response:By cover letter to the Illinois EPA, dated February 29, 2000, an application for renewal ofthe existing NPDES permit was submitted. A copy of this letter appears in Appendix Bto the Braidwood License Renewal Environmental Report. Because the NPDES permitrenewal application was filed in a timely manner, Braidwood continues to operate underthe existing permit, which is administratively continued.On June 27, 2013, the Illinois EPA issued a Draft Reissued NPDES Permit No.1L0048321. Comments received on this draft are under consideration by the agency.A copy of the Draft Reissued NPDES Permit No. IL0048321 is attached to this response.List Attachments Provided:1. Draft Reissued NPDES Permit No. IL0048321 for Exelon Generation CompanyBraidwood Nuclear Power Station, June 27, 2013 ExetonGeneration,Exelon Generation Company, LLCBraidwood Nuclear Power Station35100 South Route 53, Suite 84Braceville, IL 60407-9619www.exeloncorp.comMay 31, 2013Bw130053Wildlife Habitat CouncilCertification Department8737 Colesville Road, Suite 800Silver Spring, MD 20910
Subject:
'Wildlife at Work" RecertificationEnclosed please find the paperwork containing the completed.Wildlife Habitat CouncilRecertification Application, Wildlife Management Plan, three completed reference interviewquestionnaires, and photo documentation. Thank you for considering Braidwood Station forthe "Wildlife at Work" Recertification.If you have any questions regarding the above, please contact Brittney O'Connor at (815)417-3257.Respectfully,6h2VMark E. KanavosPlant ManagerBraidwood Generating Station WILDLIFE A T WORKSITE OVERVIEW QUESTIONNAIREWILDLIFE HABITAT COUNCIL"2013 Site Overview QuestionnaireAnswer all questions and return with the required application materials.1. When did your company acquire the property? 19702. What are the major land uses of the site? (past and present) Present: Nuclear Fuel Electric GenerationPast: Strip Mining3. Describe the area surrounding your property. (e.g., rural, urban, residential, etc.)The surrounding area is very much rural. The small town of Braidwood is nearby as is the town of Godley.Farmland occupies most of the surrounding area by far with several small lakes scattered throughout theArea.4. What are the main habitats found on the site? (e.g., grassland, forest, wetland, etc.) Please bedescriptive. If possible, list common or notable species.The primary habitat found on site is Braidwood Lake. This natural lake occupies approximately2640 acres and is open to public fishing. Also found on site is a small area of grassland and forest,approximately 100 acres.Is the Wildlife Team actively managing any of these habitat types? If yes, please list below.Habitat Tyve Acreage actively mananedExample: freshwater wetland 2 acres offreshwater wetland are actively managedFreshwater Lake 2640 acres of freshwater lake are actively managed5. Are there any bodies of water on-site, or running through the site? If yes, please list and describethem.YES-Braidwood LakeThis is a natural strip mining freshwater lake used as cooling water for the two nuclear fueled steamgenerators on site. This lake occupies approximately 2640 acres and is open to the public for fishing. Averagedepth is approximately 15 feet with several deep holes of 30 feet. Several natural islands can be foundthroughout the lake. Fresh Make-up water is pumped into the lake from the nearby Kankakee River as waterfrom the lake is pumped to the Kankakee River as Lake Blowdown. The lake is stocked on an annual basis withfish, managed by a partnership with Braidwood and IDNR personnel. Fish habitat structures have been installedin the lake as well as water willow tree plantings. NPDES Permit No. IL0048321Notice No. JMC:12091801 IL0048321 Exelon Braidwood.docxPublic Notice Beginning Date:Public Notice Ending Date: NO N-EXELO NNational Pollutant Discharge Elimination System (NPDES)Permit ProgramDraft Reissued NPDES Permit to Discharge into Waters of the StatePublic Notice/Fact Sheet Issued By:Illinois Environmental Protection AgencyBureau of Water, Division of Water Pollution ControlPermit Section1021 North Grand Avenue EastPost Office Box 19276Springfield, Illinois 62794-9276217/782-0610Name and Address of Discharger: Name and Address of Facility:Exelon Generation Company Exelon Generation Company4300 Winfield Road Braidwood Nuclear Power StationWarrenville, Illinois 6055 Rural Route 1, Box 84Braceville, Illinois 60407(Will County)The Illinois Environmental Protection Agency (IEPA) has made a tentative determination to issue a NPDES permit to discharge into thewaters of the state and has prepared a draft permit and associated fact sheet for the above named discharger. The Public Noticeperiod will begin and end on the dates indicated in the heading of this Public Notice/Fact Sheet. The last day comments will bereceived will be on the Public Notice period ending date unless a commentor demonstrating the need for additional time requests anextension to this comment period and the request is granted by the IEPA. Interested persons are invited to submit written comments onthe draft permit to the IEPA at the above address. Commentors shall provide his or her name and address and the nature of the issuesproposed to be raised and the evidence proposed to be presented with regards to those issues. Commentors may include a request forpublic hearing. Persons submitting comments and/or requests for public hearing shall also send a copy of such comments or requeststo the permit applicant. The NPDES permit and notice number(s) must appear on each comment page.The application, engineer's review notes including load limit calculations, Public Notice/Fact Sheet, draft permit, comments received,and other documents are available for inspection and may be copied at the IEPA between 9:30 a.m. and 3:30 p.m. Monday throughFriday when scheduled by the interested person.If written comments or requests indicates a significant degree of public interest in the draft permit, the permitting authority may, at itsdiscretion, hold a public hearing. Public notice will be given 45 days before any public hearing. Response to comments will beprovided when the final permit is issued. For further information, please call Jamie Cowles at 217/782-0610.The applicant operates Braidwood Nuclear Power Station which is a nuclear fueled steam electric generating facility located on Route53 in Braceville, Will County, Illinois. Two pressurized water, nuclear fission reactors provide steam to turbine generators with amaximum generating capacity of 2240 MW (SIC 4911). Cooling and service water for station operations is withdrawn from a 2,640 acrecooling pond. Main condenser cooling water and service water is discharged to the cooling pond for dissipation of waste heat and isrecycled. A portion of the recycled water is discharged as blowdown to the Kankakee River. Make-up water is pumped from theKankakee River to the cooling pond to compensate for evaporation and blowdown losses. Make-up water to the sanitary and potablewater supply systems is also withdrawn from the Kankakee River. Station process wastewaters are discharged to the cooling pond orthe cooling pond blowdown line which discharges to the Kankakee River. Station area runoff is discharge via two runoff collection areaoverflow discharges. Stormwater runoff from the station switchyard and from the west side of the plant site is discharged to unnamednatural drainage ditches tributary to the Mazon River. The station area runoff and stormwater runoff combine with the emergencycooling pond overflow in the unnamed ditches tributary to the Mazon River. The sewage treatment plant incoming effluent has beenrerouted to Braidwood Wastewater Treatment Plant. Treated sanitary wastewater discharges will no longer occur from the site. Public Notice/Fact Sheet -- Page 2 -- NPDES Permit No. IL0048321Application is made for the existing discharges which are located in Will County, Illinois. The following information identifies thedischarge point, receiving stream and stream classifications:Outfall Receiving Stream Latitude Longitude Stream Classification Integrity Rating001 Kankakee River 410 15' 00" North 880 08' 00" West General Use and BPublic and FoodProcessing SupplyA01 Kankakee River 410 15' 00" North 880 08' 00" WestB01 Sanitary Waste has been Rerouted to Braidwood Sanitary DistrictCol Kankakee River 410 15' 00" North 880 08' 00" WestD01 Kankakee River 410 15' 00" North 880 08' 00" WestE01 Kankakee River 410 15' 00" North 880 08' 00" West002 Mazon River 410 12' 15" North 880 16' 45" West General Use A003 Mazon River 410 12' 15" North 880 16' 45" West General Use A004 Mazon River 410 12' 15" North 880 16' 45" West General Use ATo assist you further in identifying the location of the discharge please see the attached map.The stream segment (F-16) receiving the discharge from outfall(s) 001, is on the draft 2012 303(d) list of impaired waters and is abiologically significant stream on the 2008 Illinois Department of Natural Resources Publication -Integrating Multiple Taxa in aBiological Stream Rating System.Potential Cause Desiqnated UsePCBs Fish ConsumptionMercury Fish ConsumptionManganese Public and Food Processing SupplyThe stream segment (DV-06) receiving the discharge from outfall(s) 002, 003, and 004 is on the draft 2012 303(d) list of impairedwaters and not is a biologically significant stream on the 2008 Illinois Department of Natural Resources Publication -IntegratingMultiple Taxa in a Biological Stream Rating System.Potential Cause Designated UsePCBs Fish ConsumptionMercury Fish Consumption Public Notice/Fact Sheet -- Page 3 -- NPDES Permit No. IL0048321The discharge(s) from the facility shall be monitored and limited at all times as follows:Outfall: 001 -Cooling Pond Blowdown LineLOAD LIMITS lbs/dayDAF (DMF)30 DAY DAILYAVERAGE MAXIMUMCONCENTRATIONLIMITS ma/I30 DAY DAILYAVERAGE MAXIMUMPARAMETERFlowpHTemperatureTotal Residual ChlorineTotal Residual OxidantREGULATION6-9Standard0.20.05REGULATION35 IAC 304.12535 IAC 302.21140 CFR 423.1340 CFR 125.3Outfall: A01 -Wastewater Treatment Plant EffluentFlowTotal Suspended SolidsOil & GreaseOutfall: B01 -Sewage Treatment Plant Effluent (Removed)Outfall: C01 -Radwaste Treatment System EffluentFlowTotal Suspended SolidsOil & GreaseOutfall: D01 -Demineralizer Regement WastesFlowTotal Suspended SolidsOutfall: 002 North Site Stormwater Runoff BasinFlowOil & Grease1515302035 IAC 304.12440 CFR 423.121515302035 IAC 304.12440 CFR 423.12151530 35 IAC 304.12430 35 IAC 304.124Outfall 002, 003 and 004 will be required to update Stormwater Pollution Prevention Plan.The following explain the conditions of the proposed permit:The draft permit contains several Special Conditions that serve to clarify operating conditions, limitations and monitoring requirements.Additional Special Conditions clarify flow, pH, monitoring locations, discharge monitoring report submission, temperature, stormwater,additives, and total residual chlorine.Braidwood Station's intake structure that is located on the Kankakee River near Custer Park, Illinois consists of three circulating watermakeup pumps, two of which are used for normal operations and one for backup. These three make-up pumps are used to replace Public Notice/Fact Sheet -- Page 4 -- NPDES Permit No. IL0048321water lost from the plant's main cooling lake due to evaporation, seepage and blowdown. Water from the Kankakee River is pumped3.5 miles into a small freshwater holding pond that is located on the northeast shoreline of the cooling lake and from there flows into thecooling pond. Historically, the freshwater holding pond supplied potable and non-safety-related water to the plant, however, in 2010, adeep well was installed that now supplies groundwater for these systems.The intake bays housing the three make-up pumps are protected by bar grills, traveling screens and trash rakes to protect the pumpsfrom ice and debris. Debris from the traveling screens and trash rakes at the river screen house is collected in a trash basket and latertaken offsite by an approved independent contractor for offsite disposal.Each make-up pump's rated capacity is 24,000 gpm. Maximum water withdrawal from the Kankakee River is, therefore, approximately72,000 gallons per minute (gpm) or 160.4 cubic feet per second (cfs). Normal water withdrawal with two pumps operating is 48,000gpm.Water enters the river screen house at a velocity of 0.32 to 0.48 feet per second (fps) depending on river level, when both units areoperating -- a rate that is compatible with the protection of aquatic species.Braidwood Station utilizes a closed-cycle recirculating cooling system, a 2,537 acre cooling pond, for cooling of plant condensers and isdetermined to be the equivalent of Best Technology Available (BTA) for cooling water intake structures to prevent/minimizeimpingement mortality in accordance with the Best Professional Judgment (BPJ) provisions of 40 CFR 125.3 because it allows thefacility to only withdraw the amount of water necessary to maintain the cooling pond level rather than the entire volume used for coolingof the plant condensers. Special Condition 19 requires additional information to be submitted to the Agency pursuant to 316(b), so thatthe Agency can evaluate the potential impacts of the cooling water intake structure operations pursuant to 40 CFR 125.90(b). Public Notice/Fact Sheet -- Page 5 -- NPDES Permit No. IL0048321Exceflon Generefio Comp"nBreklwood Nuclear Power StafwaNPOES Perft No, LWO4=31 Public Notice of Draft PermitPublic Notice Number JMC:1 2091801 IL0048321 Exelon Braidwood.docx is hereby given by Illinois EPA, Division of Water PollutionControl, Permit Section, 1021 North Grand Avenue East, Post Office Box 19276, Springfield, Illinois 62794-9276 (herein Agency) that adraft National Pollutant Discharge Elimination System (NPDES) Permit Number IL0048321 has been prepared under 40 CFR 124.6(d)for Exelon Generation Company, Braidwood Nuclear Power Station, 1411 Opus Place, Suite 250, Downers Grove, IL 60515 fordischarge into the Kankakee and Mazon River from the Exelon Generation Company, Braidwood Nuclear Power Station, Rural Route1, Braceville Illinois 60407, (Will County). The applicant operates the Braidwood Nuclear Power Station which is an existing nuclearfueled steam electric generating facility that generates 2240 MW of energy. The station discharges condenser cooling and servicewater to a cooling pond which then discharges to the Kankakee River. Stormwater runoff discharges to the Mazon River.The application, draft permit and other documents are available for inspection and may be copied at the. Agency between 9:30 A.M. and3:30 P.M. Monday through Friday. A Fact Sheet containing more detailed information is available at no charge. For further information,call the Public Notice Clerk at 217/782-0610.Interested persons are invited to submit written comments on the draft permit to the Agency at the above address. The NPDES Permitand Joint Public Notice numbers must appear on each comment page. All comments received by the Agency not later than 30 daysfrom the date of this publication shall be considered in making the final decision regarding permit issuance.Any interested person may submit written request for a public hearing on the draft permit, stating their name and address, the nature ofthe issues proposed to be raised and the evidence proposed to be presented with regards to these issues in the hearing. Suchrequests must be received by the Agency not later than 30 days from the date of this publication.If written comments and/or requests indicate a significant degree of public interest in the draft permit, the permitting authority may, at itsdiscretion, hold a public hearing. Public notice will be given 30 days before any public hearing.SAK:JMC: 12091801 IL0048321 Exelon Braidwood.docx NPDES Permit No. IL0048321Illinois Environmental Protection AgencyDivision of Water Pollution Control1021 North Grand Avenue EastPost Office Box 19276Springfield, Illinois 62794-9276NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMReissued (NPDES) PermitExpiration Date:Issue Date:Effective Date:Name and Address of Permittee:Exelon Generation Company1411 Opus Place, Suite 250Warrenville, Illinois 6055Discharge Number and Name:Facility Name and Address:Exelon Generation CompanyBraidwood Nuclear Power StationRural Route 1, Box 84Braceville, Illinois 60407Receiving Waters:001A01B01ColD01E01002003004Cooling Pond Blowdown LineWastewater Treatment Plant EffluentSewage Treatment Plant Effluent (Removed)Radwaste Treatment System EffluentDemineralizer Regenerant WastesIntake Screen BackwashNorth Site Stormwater Runoff BasinSouth Site Stormwater Runoff BasinSwitchyard Area RunoffKankakee RiverMazon RiverIn compliance with the provisions of the Illinois Environmental Protection Act, Title 35 of Ill. Adm. Code, Subtitle C and/or Subtitle D,Chapter 1, and the Clean Water Act (CWA), the above-named permittee is hereby authorized to discharge at the above location to theabove-named receiving stream in accordance with the standard conditions and attachments herein.Permittee is not authorized to discharge after the above expiration date. In order to receive authorization to discharge beyond theexpiration date, the permittee shall submit the proper application as required by the Illinois Environmental Protection Agency (IEPA) notlater than 180 days prior to the expiration date.Allen Keller, P.E.Manager, Permit SectionDivision of Water Pollution ControlSAK:JMC\12091801 IL0048321 Exelon Braidwood.docx Page 2NPDES Permit No. IL0048321Effluent Limitations and MonitoringLOAD LIMITSlbs/day30 DAY DAILYAVG. MAX.CONCENTRATIONLIMITS ma/I30 DAY DAILYAVG. MAX.SAMPLEFREQUENCYSAMPLETYPEPARAMETER1. From the effective date of this permit until the expiration date, the effluent of the following discharge(s) shalllimited at all times as follows:Outfall(s): 001 Cooling Pond Blowdown Line* (DAF = 30,000 gpm or 43.2 MGD)be monitored andThis discharge consists of:Approximate Flow1; Condenser cooling water2. House service water3. Essential service water4. Demineralizer regenerant waste5. Wastewater treatment plant effluent6. Radwaste treatment system effluent7. House service water strainer backwash8. Essential service water strainer backwash9. Sewage treatment plant effluent (Removed)10. Water treatment system filter backwashes11. River intake screen backwash12. Cooling pond intake screen backwash11.31 MGD1.3 MGD1.3 MGD0.028 MGD0.079 MGD0.032 MGD0.03 MGD0.017 MGD0.00 MGD0.03 MGD0.112 MGD0.4 MGDFlow (MGD)pHSee Special Condition 1See Special Condition 2See Special Condition 4DailyTemperature1/WeekDaily1/Month1/MonthContinuousGrabContinuousGrab**Grab**Total Residual Chlorine*Total Residual Oxidant-*See Special Condition 13**See Special Condition 50.20.05 Page 3NPDES Permit No. IL0048321Effluent Limitations and MonitoringLOAD LIMITSlbs/day30 DAY DAILYAVG. MAX.CONCENTRATIONLIMITS mo/I30 DAY DAILYAVG. MAX.SAMPLEFREQUENCYSAMPLETYPEPARAMETER1. From the effective date of this permit until the expirationlimited at all times as follows:Outfall(s): A01 Wastewater Treatment Plant Effluent.date, the effluent of the following discharge(s) shall be monitored andThis discharge consists of:Approximate Flow1. Turbine building fire and oil sump*a. Turbine building floor drain tank*i. Turbine building floor drain sumpsii. Essential service water drain sumpsiii.. Condensate pit sumpsb. Turbine building equipment drain tank*c. Units 1 and 2 tendon tunnel sumpsd. Auxiliary boiler blowdowne. Units I and 2 diesel fuel storage tank sumpsf. Oil-water separator No. 1 effluentg. Secondary-Side drain waterh. Miscellaneous non-contaminated auxiliary building drains2. Water treatment area floor and equipment drain sumps3. Water treatment lime-softening blowdown4. Wastewater treatment system sand filter backwash5. Condensate polisher regenerant wastes (alternate route)6. Demineralizer regenerant waste drains (alternate route)0.079 MGDIntermittentIntermittent0.002 MGDIntermittentIntermittentFlow (MGD)See Special Condition 1DailyTotal Suspended Solids15.015.030.020.01/Week1/Month24 HourTotal24 HourCompositeGrabOil and Grease*These wastestreams may be directed to the Radwaste Treatment System depending on the results of the process radiation monitors. Page 4NPDES Permit No. IL0048321Effluent Limitations and MonitoringLOAD LIMITSlbs/day30 DAY DAILYAVG. MAX.CONCENTRATIONLIMITS mq/I30 DAY DAILYAVG. MAX.PARAMETERSAMPLEFREQUENCYSAMPLETYPE1. From the effective date of this permit until the expiration date, the effluent of the following discharge(s) shall be monitored andlimited at all times as follows:Outfall(s): B01 Sewage Treatment Plant EffluentInternal Outfall B01 has been removed from the permit. Sanitary waste is now directed to the Braidwood Wastewater Treatment Plant.Outfall(s): C01 Radwaste Treatment System EffluentThis discharge consists of:Approximate Flow:1.2.3.4.-5.6.7.8.9.10.11.12.Steam generator condensate blowdownCooling jacket blowdownAuxiliary building and turbine building floor drainsLaundry waste treatment system drainsChemical and volume control system drainsBoron recycle system blowdownRadwaste demineralizer regenerant wastes and filter backwashReactor building floor and equipment drainsTurbine building floor drain tank (Alternate Route)Turbine building fire and oil sump (Alternate Route)Turbine building equipment drain tank (Alternate Route)Evaporator wastewaterIntermittentIntermittentIntermittent0.001 MGDIntermittentIntermittent0.002 MGDIntermittentIntermittentIntermittentIntermittentIntermittentFlow (MGD)See Special Condition 1DailyTotal Suspended Solids15.030.01/WeekContinuousDischargeTankCompositeOil and Grease15.0 20.02/Year Grab Page 5NPDES Permit No. IL0048321Effluent Limitations and MonitoringLOAD LIMITS CONCENTRATIONlbs/day LIMITS mg/I30 DAY DAILY 30 DAY DAILY SAMPLE SAMPLEPARAMETER AVG. MAX. AVG. MAX. FREQUENCY TYPE1. From the effective date of this permit until the expiration date, the effluent of the following discharge(s) shall be monitored andlimited at all times as follows:Outfall(s): D01 Demineralizer Regenerant WastesThis discharge consists of Approximate Flow1. Make-up demineralizer regenerant waste-* 0.028 MGD2. Condensate polisher regenerant waste***3. Regenerant chemical area drains4. Portable demineralizer regenerate wastesFlow (MGD) , See Special Condition 1 Daily ContinuousTotal Suspended Solids- 15.0 30.0 1/Week 8 HourComposite***This wastestream may be alternately routed to the wastewater treatment system.Outfall(s): E01 River Intake Screen Backwash**See Special Condition 17 Page 6NPDES Permit No. IL0048321Effluent Limitations and MonitoringLOAD LIMITS CONCENTRATIONlbs/day LIMITS mq/I30 DAY DAILY 30 DAY DAILY SAMPLE SAMPLEPARAMETER AVG. MAX. AVG. -MAX. FREQUENCY TYPE1. From the effective date of this permit until the expiration date, the effluent of the following discharge(s) shall be monitored andlimited at all times as follows:Outfall(s): 002 North Site Stormwater Runoff Basin*This discharge consists of: Approximate Flow:1. Parking lot runoff Intermittent2. Transformer area runoff Intermittent3. North station area runoff Intermittent4. Turbine building, auxiliary building and waste Intermittenttreatment building roof drainsFlow (MGD) See Special Condition 1 1/Quarter Measure WhenMonitoringOil & Grease 15 30 I/Quarter Grab*See Special Conditions 9 and 15Outfall(s): 003 South Site Stormwater Runoff Basin*Approximate FlowIntermittent*See Special Condition 9Outfall(s): 004 Switchyard Area Runoff*Approximate FlowIntermittent*See Special Condition 9 Page 7NPDES Permit No. IL0048321Special ConditionsSPECIAL CONDITION 1. Flow shall be reported as a monthly average and a daily maximum.SPECIAL CONDITION 2. The pH shall be in the range 6.0 to 9.0.SPECIAL CONDITION 3. Samples taken in compliance with the effluent monitoring requirements shall be taken at a pointrepresentative of the discharge, but prior to entry into the receiving stream.SPECIAL CONDITION 4. This facility meets the criteria for establishment of a formal mixing zone for thermal discharges pursuant to35 IAC 302.102. The following mixing zone defines the area and volume of the receiving water body in which mixing is allowed tooccur. Water quality standards for temperature listed in table below must be met at every point outside of the mixing zone.A. The facility has installed a high rate diffuser and has completed a CORMIX model to determine the size of the mixing zone,which is 35 meters wide by 25 meters downstream of the diffuser.B. There shall be no abnormal temperature changes that may adversely affect aquatic life unless caused by natural conditions.The normal daily and seasonal temperature fluctuations which existed before the addition of heat due to other than naturalcauses shall be maintained.C. The maximum temperature rise above natural temperatures~shall not exceed 2.80 C (50 F).D. The water temperature at the edge of the mixing zone defined above shall not exceed the maximum limits in the followingtable during more than one percent of the hours in the 12 month period ending with any month. Moreover, at no time shall thewater temperature at the edge of the mixing zone exceed the maximum limits in the following table by more than 1.70 C (30 F).Jan. Feb. Mar. April May June July Aug. Sept. Oct. Nov. Dec.OF 60 60 60 90 90 90 90 90 90 90 90 60cC 16 16 16 32 32 32 32 32 32 32 32 16Compliance with this part shall be determined by the following equation:TEDGE = 0.25 x (Qus x Tus) + QE x TE / (0.25 X Qus + QE)Where:TEDGE = Temperature at the edge of the mixing zone.Qus = Upstream FlowTus = Upstream TemperatureQE = Effluent FlowTE = Temperature of the effluent.E. The monthly maximum value shall be reported on the DMR form.SPECIAL CONDITION 5. Chlorine or bromine may not be discharged from each unit's main cooling condensers for more than twohours per day. The reported mean concentration and maximum concentration of Total Residual Chlorine/Total Residual Oxidant(TRC/TRO) shall be based on a minimum of three grab samples taken at approximately five minute intervals at Outfall 001. Thetime samples were collected, the time and duration of oxidant dosing period plus the monthly average and daily maximum amountof oxidant applied shall be reported on the Discharge Monitoring Reports. The reported average concentration of TRC/TRO is theaverage of all values measured for a sampling event and the reported maximum concentration is the highest value measured for asingle grab sample. Discharge Monitoring Reports shall indicate whether bromine and/or chlorine compounds were used duringthe month. A discharge limit, as measured at the blowdown to the Kankakee River, of 0.05 mg/I (instantaneous maximum) shall beachieved for total residual oxidant (total residual chlorine/total residual halogen) when bromine biocides are used for condenserbiofouling control.SPECIAL CONDITION 6. There shall be no discharge of polychlorinated biphenyl compounds.SPECIAL CONDITION 7. There shall be no discharge of complex metal bearing wastestreams or associated rinses from chemicalmetal cleaning unless this permit has been modified to include the new discharge. Page 8NPDES Permit No. IL0048321Special ConditionsSPECIAL CONDITION 8. Intake impacts will be reduced by limiting pumping from the river during the peak entrainment period.For a four-week period (last three weeks in May and first week in June), pumping will be allowed only during the day (between onehour after sunrise and one hour before sunset). In addition, during the four-week period, pumping will be minimized during theday. Pumping will occur when needed to fill the freshwater holding pond and to maintain efficient operation of the cooling pond. Inan extreme emergency, and upon immediate notification of the Agency, pumping could occur at night. Such pumping would ceaseas soon as the emergency was over. Records of all pumping during the four-week period will be maintained. Such records willinclude dates, number of pumps operating and start and end times.SPECIAL CONDITION 9.STORM WATER POLLUTION PREVENTION PLAN (SWPPP)A. A storm water pollution prevention plan shall be maintained by the permittee for the storm water associated with industrial activityat this facility. The plan shall identify potential sources of pollution which may be expected to affect the quality of storm waterdischarges associated with the industrial activity at the facility. In addition, the plan shall describe and ensure the implementationof practices which are to be used to reduce the pollutants in storm water discharges associated with industrial activity at the facilityand to assure compliance with the terms and conditions of this permit. The permittee shall modify the plan if substantive changesare made or occur affecting compliance with this condition.1. Waters not classified as impaired pursuant to Section 303(d) of the Clean Water Act.Unless otherwise specified by federal regulation, the storm water pollution prevention plan shall be designed for a storm eventequal to or greater than a 25-year 24-hour rainfall event.2. Waters classified as impaired pursuant to Section 303(d) of the Clean Water ActFor any site which discharges directly to an impaired water identified in the Agency's 303(d) listing, and if any parameter in thesubject discharge has been identified as the cause of impairment, the storm water pollution prevention plan shall be designedfor a storm event equal to or greater than a 25-year 24-hour rainfall event. If required by federal regulations, the storm waterpollution prevention plan shall adhere to a more restrictive design criteria.B. The operator or owner of the facility shall make a copy of the plan available to the Agency at any reasonable time upon request.Facilities which discharge to a municipal separate storm sewer system shall also make a copy available to the operator of themunicipal system at any reasonable time upon request.C. The permittee may be notified by the Agency at any time that the plan does not meet the requirements of this condition. After suchnotification, the permittee shall make changes to the plan and shall submit a written certification that the requested changes havebeen made. Unless otherwise provided, the permittee shall have 30 days after such notification to make the changes.D. The discharger shall amend the plan whenever there is a change in construction, operation, or maintenance which may affect thedischarge of significant quantities of pollutants to the waters of the State or if a facility inspection required by paragraph H of thiscondition indicates that an amendment is needed. The plan should also be amended if the discharger is in violation of anyconditions of this permit, or has not achieved the general objective of controlling pollutants in storm water discharges.Amendments to the plan shall be made within 30 days of any proposed construction or operational changes at the facility, and shallbe provided to the Agency for review upon request.E. The plan shall provide a description of potential sources which may be expected to add significant quantities of pollutants to stormwater discharges, or which may result in non-storm water discharges from storm water outfalls at the facility. The plan shallinclude, at a minimum, the following items:1. A topographic map extending one-quarter mile beyond the property boundaries of the facility, showing: the facility, surfacewater bodies, wells (including injection wells), seepage pits, infiltration ponds, and the discharge points where the facility'sstorm water discharges to a municipal storm drain system or other water body. The requirements of this paragraph may beincluded on the site map if appropriate. Any map or portion of map may be withheld for security reasons.2. A site map showing:i. The storm water conveyance and discharge structures;ii. An outline of the storm water drainage areas for each storm water discharge point; Page 9NPDES Permit No. IL0048321Special Conditionsiii. Paved areas and buildings;iv. Areas used for outdoor manufacturing, storage, or disposal of significant materials, including activities that generatesignificant quantities of dust or particulates.v. Location of existing storm water structural control measures (dikes, coverings, detention facilities, etc.);vi. Surface water locations and/or municipal storm drain locationsvii. Areas of existing and potential soil erosion;viii. Vehicle service areas;ix. Material loading, unloading, and access areas.x. Areas under items iv and ix above may be withheld from the site for security reasons.3. A narrative description of the following:i. The nature of the industrial activities conducted at the site, including a description of significant materials that are treated,stored or disposed of in a manner to allow exposure to storm water;ii. Materials, equipment, and vehicle management practices employed to minimize contact of significant materials with stormwater discharges;iii. Existing structural and non-structural control measures to reduce pollutants in storm water discharges;iv. Industrial storm water discharge treatment facilities;v. Methods of onsite storage and disposal of significant materials.4. A list of the types of pollutants that have a reasonable potential to be present in storm water discharges in significantquantities. Also provide a list of any pollutant that is listed as impaired in the most recent 303(d) report.5. An estimate of the size of the facility in acres or square feet, and the percent of the facility that has impervious areas such aspavement or buildings.6. A summary of existing sampling data describing pollutants in storm water discharges.F. The plan shall describe the storm water management controls which will be implemented by the facility. The appropriate controlsshall reflect identified existing and potential sources of pollutants at the facility. The description of the storm water managementcontrols shall include:1. Storm Water Pollution Prevention Personnel -Identification by job titles of the individuals who are responsible for developing,implementing, and revising the plan.2. Preventive Maintenance -Procedures for inspection and maintenance of storm water conveyance system devices such asoil/water separators, catch basins, etc., and inspection and testing of plant equipment and systems that could fail and result indischarges of pollutants to storm water.3. Good Housekeeping -Good housekeeping requires the maintenance of clean, orderly facility areas that discharge stormwater. Material handling areas shall be inspected and cleaned to reduce the potential for pollutants to enter the storm waterconveyance system.4. Spill Prevention and Response -Identification of areas where significant materials can spill into or otherwise enter the stormwater conveyance systems and their accompanying drainage points. Specific material handling procedures, storagerequirements, spill cleanup equipment and procedures should be identified, as appropriate. Internal notification procedures forspills of significant materials should be established.5. Storm Water Management Practices -Storm water management practices are practices other than those which control thesource of pollutants. They include measures such as installing oil and grit separators, diverting storm water into retentionbasins, etc. Based on assessment of the potential of various sources to contribute pollutants, measures to remove pollutants Page 10NPDES Permit No. IL0048321Special Conditionsfrom storm water discharge shall be implemented. In developing the plan, the following management practices shall beconsidered:i. Containment -Storage within berms or other secondary containment devices to prevent leaks and spills from enteringstorm water runoff. To the maximum extent practicable storm water discharged from any area where material handlingequipment or activities, raw material, intermediate products, final products, waste materials, by-products, or industrialmachinery are exposed to storm water should not enter vegetated areas or surface waters or infiltrate into the soil unlessadequate treatment is provided.ii. Oil & Grease Separation -Oil/water separators, booms, skimmers or other methods to minimize oil contaminated stormwater discharges.iii. Debris & Sediment Control -Screens, booms, sediment ponds or other methods to reduce debris and sediment in stormwater discharges.iv. Waste Chemical Disposal -Waste chemicals such as antifreeze, degreasers and usedoils shall be recycled or disposedof in an approved manner and in a way which prevents them from entering storm water discharges.v. Storm Water Diversion -Storm water diversion away from materials manufacturing, storage and other areas of potentialstorm water contamination. Minimize the quantity of storm water entering areas where material handling equipment ofactivities, raw material, intermediate products, final products, waste materials, by-products, or industrial machinery areexposed to storm water using green infrastructure techniques where practicable in the areas outside the exposure area,and otherwise divert storm water away from exposure area.vi. Covered Storage or Manufacturing Areas -Covered fueling operations, materials manufacturing and storage areas toprevent contact with storm water.vii. Storm Water Reduction -Install vegetation on roofs of buildings within adjacent to the exposure area to detain andevapotranspirate runoff where precipitation falling on the roof is not exposed to contaminants, to minimize storm waterrunoff; capture storm water in devices that minimize the amount of storm water runoff and use this water as appropriatebased on quality.6. Sediment and Erosion Prevention -The plan shall identify areas which due to topography, activities, or other factors, have ahigh potential for significant soil erosion. The plan shall describe measures to limit erosion.7. Employee Training -Employee training programs shall inform personnel at all levels of responsibility of the components andgoals of the storm water pollution control plan. Training should address topics such as spill response, good housekeeping andmaterial management practices. The plan shall identify periodic dates for such training.8. Inspection Procedures -Qualified plant personnel shall be identified to inspect designated equipment and plant areas. Atracking or follow-up procedure shall be used to ensure appropriate response has been taken in response to an inspection.Inspections and maintenance activities shall be documented and recorded.G. Non-Storm Water Discharge -The plan shall include a certification that the discharge has been tested or evaluated for thepresence of non-storm water discharge. The certification shall include a description of any test for the presence of non-storm waterdischarges, the methods used, the dates of the testing, and any onsite drainage points that were observed during the testing. Anyfacility that is unable to provide this certification must describe the procedure of any test conducted for the presence of non-stormwater discharges, the test results, potential sources of non-storm water discharges to the storm sewer, and why adequate tests forsuch storm sewers were not feasible.H. Quarterly Visual Observation of Discharges -The requirements and procedures for quarterly visual observations are applicable toall outfalls covered by this condition.1. You must perform and document a quarterly visual observation of a storm water discharge associated with industrial activityfrom each outfall. The visual observation must be made during daylight hours. If no storm event resulted in runoff duringdaylight hours from the facility during a monitoring quarter, you are excused from the visual observations requirement for thatquarter, provided you document in your records that no runoff occurred. You must sign and certify the document.2. Your visual observation must be made on samples collected as soon as practical, but not to exceed 1 hour or when the runoffor snow melt begins discharging from your facility. All samples must be collected from a storm event discharge that is greaterthan 0.1 inch in magnitude and that occurs at least 72 hours from the previously measureable (greater than 0.1 inch rainfall)storm event. The observation must document: color, odor, clarity, floating solids, settled solids, suspended solids, foam, oil Page 11NPDES Permit No. IL0048321Soecial Conditionssheen, and other obvious indicators of storm water pollution. If visual observations indicate any unnatural color, odor, turbidity,floatable material, oil sheen or other indicators of storm water pollution, the permittee shall obtain a sample and monitor for theparameter or the list of pollutants in Part E.4.3. You must maintain your visual observation reports onsite with the SWPPP. The report must include the observation date andtime, inspection personnel, nature of the discharge (i.e., runoff or snow melt), visual quality of the storm water discharge(including observations of color, odor, floating solids, settled solids, suspended solids, foam, oil sheen, and other obviousindicators of storm water pollution), and probable sources of any observed storm water contamination.4. You may exercise a waiver of the visual observation requirement at a facility that is inactive or unstaffed, as long as there areno industrial materials or activities exposed to storm water. If you exercise this waiver, you must maintain a certification withyour SWPPP stating that the site is inactive and unstaffed, and that there are no industrial materials or activities exposed tostorm water.5. Representative Outfalls -If your facility has two or more outfalls that you believe discharge substantially identical effluents,based on similarities of the industrial activities, significant materials, size of drainage areas, and storm water managementpractices occurring within the drainage areas of the outfalls, you may conduct visual observations of the discharge at just one-of the outfalls~and report that the results also apply to the substantially identical outfall(s).6. The visual observation documentation shall be made available to the Agency and general public upon written request.I. The permittee shall conduct an annual facility inspection to verify that all elements of the plan, including the site map, potentialpollutant sources, and structural and non-structural controls to reduce pollutants in industrial storm water discharges are accurate.Observations that require a response and the appropriate response to the observation shall be retained as part of the plan.Records documenting significant observations made during the site inspection shall be submitted to the Agency in accordance withthe reporting requirements of this permit.J. This plan should briefly describe the appropriate elements of other program requirements, including Spill Prevention Control andCountermeasures (SPCC) plans required under Section 311 of the CWA and the regulations promulgated there under, and BestManagement Programs under 40 CFR 125.100.K. The plan is considered a report that shall be available to the public at any reasonable time upon request.L. The plan shall include the signature and title of the person responsible for preparation of the plan and include the date of initialpreparation and each amendment thereto.M. Facilities which discharge storm water associated with industrial activity to municipal separate storm sewers may also be subject toadditional requirement imposed by the operator of the municipal systemConstruction AuthorizationAuthorization is hereby granted to construct treatment works and related equipment that may be required by the Storm Water PollutionPrevention Plan developed pursuant to this permit..This Authorization is issued subject to the following condition(s).N. If any statement or representation is found to be incorrect, this authorization may be revoked and the permittee there upon waivesall rights there under.0. The issuance of this authorization (a) does not release the permittee from any liability for damage to persons or property caused byor resulting from the installation, maintenance or operation of the proposed facilities; (b) does not take into consideration thestructural stability of any units or part of this project; and (c) does not release the permittee from compliance with other applicablestatutes of the State of Illinois, or other applicable local law, regulations or ordinances.P. Plans and specifications of all treatment equipment being included as part of the stormwater management practice shall beincluded in the SWPPP.Q. Construction activities which result from treatment equipment installation, including clearing, grading and excavation activitieswhich result in the disturbance of one acre or more of land area, are not covered by this authorization. The permittee shall contactthe IEPA regarding the required permit(s).REPORTING Page 12NPDES Permit No. IL0048321Special ConditionsR. The facility shall submit an electronic copy of the annual inspection report to the Illinois Environmental Protection Agency. Thereport shall include results of the annual facility inspection which is required by Part I of this condition. The report shall also includedocumentation of any event (spill, treatment unit malfunction, etc.) which would require an inspection, results of the inspection, andany subsequent corrective maintenance activity. The report shall be completed and signed by the authorized facility employee(s)who conducted the inspection(s). The annual inspection report is considered a public document that shall be available at anyreasonable time upon request. -....S. The first report shall contain information gathered during the one year time period beginning with the effective date of coverageunder .this permit and shall be submitted no later than 60 days after this one year period has expired. Each subsequent report shallcontain the previous year's information and shall be submitted no later than one year after the previous year's report was due.T. If the facility performs inspections more frequently than required by this permit, the results shall be included as additionalinformation in the annual report.U; The permittee shall retain- the annual inspection report on file at least 3 years. This period may be extended by request of theIllinois Environmental Protection Agency at any time.Annual inspection reports shall be mailed to the following address:Illinois Environmental Protection AgencyBureau of WaterCompliance Assurance SectionAnnual Inspection Report1021 North Grand Avenue EastPost Office Box 19276Springfield, Illinois 62794-9276V. The permittee shall notify any regulated small municipal separate storm sewer owner (MS4 Community) that they maintaincoverage under an individual NPDES permit. The permittee shall submit any SWPPP or any annual inspection to the MS4community upon request by the MS4 community.SPECIAL CONDITION 10. Discharge of station cooling pond water to adjacent impoundments owned by the permittee, to replacewater which is withdrawn from these impoundments for station operations during periods of low flows in the Kankakee River when thestation must decouple its operations from the river, is hereby permitted for these emergency periods. No monitoring is required for thispermitted activity. The IEPA shall be promptly notified during such operations.SPECIAL CONDITION 11. The permittee shall record monitoring results on Discharge Monitoring Report Forms using one such formfor each discharge each month.The completed Discharge Monitoring Report forms shall be submitted to IEPA no later than the 28th of the following month,unless otherwise specified by the permitting authority.Discharge Monitoring Reports shall be mailed to the IEPA at the following address:Illinois Environmental Protection AgencyDivision of Water Pollution ControlAttention: Compliance Assurance Section, Mail Code #19Post Office Box 192761021 North Grand Avenue EastSpringfield, Illinois 62706SPECIAL CONDITION 12. The "upset" defense provisions of Title 40, Section 122.41(n) of the Federal Regulations are herebyincorporated into this permit by reference.SPECIAL CONDITION 13. An emergency cooling pond overflow discharges to an unnamed drainage ditch which is tributary to theMazon River. Discharges from this overflow shall be subject to the bypass provisions of 40 CFR 122.41(m).SPECIAL CONDITION 14. For Discharge No. B01, any use of chlorine to control slime growths, odors or as an operational control, etc.shall not exceed the limit of 0.05 mg/I (daily maximum) total residual chlorine in the effluent. Sampling is required on a daily grab basisduring the chlorination process. Reporting shall be submitted on the (DMR's) on a monthly basis. Page 13NPDES Permit No. IL0048321Soecial ConditionsSPECIAL CONDITION 15. The Agency has reviewed the Oil Separator Oil Level Quarterly Surveillance (Document OBwOS OD-Q1)standard operating procedures document.This surveillance in conjunction with effluent limits monitoring requirements shall be conducted as described unless Agency interactiondeems otherwise.Any maintenance activities required as a result of these inspections shall be recorded and submitted to the Agency on a semi-annualbasis with the July and January DMRs for the preceding six-month period.SPECIAL CONDITION 16. In accordance 40 CFR 125.3 it is the Agency's best professional judgment that the intake structure isconsidered the best technology available for minimizing adverse environmental impact because utilization of a closed circuit ponddesignated as Braidwood Lake was considered the best technology available for minimizing adverse environmental impact under thenow remanded rule of 40 CFR 125.94(a)(1)(i).SPECIAL CONDITION 17. Debris collected on intake screens is prohibited from being discharged back to the canal. Debris does notinclude living fish or other living aquatic organisms.. -.. .-SPECIAL CONDITON 18. Blowdown Line Vacuum Breaker MonitoringThe applicant shall conduct monitoring of vacuum breaker(s) as outlined in Consent Order No. 06 MR 248. -SPECIAL CONDITION 19.Braidwood Station utilizes a closed-cycle recirculating cooling system, a 2,537 acre cooling pond, for cooling of plant condensers and isdetermined to be the equivalent of Best Technology Available (BTA) for cooling water intake structures. to prevent/minimizeimpingement mortality in accordance with the Best Professional Judgment (BPJ) provisions of 40 CFR 125.3 because it allows thefacility to only withdraw the amount of water necessary to maintain the cooling pond level rather than the entire volume used for coolingof the plant condensers.In order for the Agency to evaluate the potential impacts of cooling water intake structure operations pursuant to 40 CFR 125.90(b), thepermittee shall prepare and submit information to the Agency outlining current intake structure conditions at this facility, including adetailed description of the current intake structure operation and design, description of any operational or structural modifications fromoriginal design parameters, source waterbody flow information as necessary.The information shall also include a summary of historical 316(b) related intake impingement and/or entrainment studies, if any, as wellas current impingement mortality and/or entrainment characterization data; and shall be submitted to the Agency within six (6) monthsof the permit's effective date. -... -Upon the receipt and review of this information, the permit may be modified to require the submittal of additional information based on aBest Professional Judgment review by the Agency. This permit may also be revised or modified in accordance with any laws,regulations, or judicial orders pursuant to Section 316(b) of the Clean Water Act. Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-4 Category: Surface WaterStatement of Question:Provide a large-scale map or maps depicting NPDES outfall locations.Response:A map depicting NPDES outfall locations is attached.List Attachments Provided:1. Map of NPDES Outfall Locations.
Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-5Category:Surface WaterStatement of Question:As discussed with applicant's staff during the site audit, provide a summary of available historicaland current water quality data for the cooling pond (including temperature), include average ambientvalues and maximum observed values and date of occurrence, if available. Provide a data set thatcovers the last 10 years.Response:Table 1 below shows the annual average water quality results for calcium hardness, pH,conductivity, and total alkalinity. Also the annual average cooling pond temperature is shown.The data were collected in front of the trash racks at the lake screen house intake structure andare provided for years 2004 through 2013.Table 1: Braidwood Coolina Pond Water Qualitv and Temperature Annual AveragesYear Calcium pH Conductivity Total TemperatureHardness PS/cm Alkalinity -C (TF)(ppm) (ppm)2013 187 8.82 1021 245 20.2 (68.4)2012 192 8.84 1064 254 20.8 (69.4)2011 193 8.86 1021 267 20.4 (68.7)2010 176 8.80 958 254 21.8(71.2)2009 191 8.82 991 253 19.6 (67.3)2008 202 8.87 1089 245 20.2 (68.4)2007 249 8.77 1143 257 19.1 (66.4)2006 285 8.84 1157 238 20.1 (68.2)2005 389 8.76 1336 240 21.2 (70.2)2004 430 8.57 1499 317 19.7 (67.5)1 of 2 Table 2 shows the annual maximum values for the same parameters and time period. The dateof the annual maximum measured temperature is also provided. This data set is from analysisof grab samples from the cooling pond, which are obtained several times a week, and the dataset does not include any continuous monitor results.Table 2: Braidwood Cooling Pond Water Quality and Temperature Annual MaximumsYear Calcium pH Conductivity Total Temperature Date ofHardness pS/cm Alkalinity °C (OF) Maximum(ppm) (ppm) Temperature2013 261 9.17 1266 315 37.4 (99.3) 7/19/132012 272 9.09 1209 319 36.8 (98.2) 7/6/122011 263 9.07 1186 324 36.8 (98.2) 8/2/112010 247 9.09 1146 313 34.3 (93.7) 7/11/102009 257 9.20 1182 301 35.5 (95.9) 6/26/092008 278 9.09 1310 315 32.8(91.0) 8/20/082007 330 9.11 1275 319 35.0(95.0) 8/2/072006 385 9.23 1437 313 34.3 (93.7) 7/31/062005 419 9.20 1542 326 37.3 (99.1) 6/29/052004 491 9.00 1645 443 32.5 (90.5) 7/2/04List Attachments Provided:None.2 of 2 Braidwood Environmental Audit -Request for Additional Information ResponseQuestion #: SW-6 Category: Surface WaterStatement of Question:Provide all non-radiological monitoring reports from the last 5 years, including NPDESDischarge Monitoring Reports and surface water withdrawal records/reports.Response:The requested documents are attached.List Attachments Provided:1. Surface Water and Groundwater Withdrawal Recordsa. Annual Illinois Water Inventory -Exelon Braidwood Station, 2008b. Annual Illinois Water Inventory -Exelon Braidwood Station, 2009c. Annual Illinois Water Inventory -Exelon Braidwood Station, 2010d. Annual Illinois Water Inventory -Exelon Braidwood Station, 2011e. Annual Illinois Water Inventory -Exelon Braidwood Station, 20122. NPDES Discharge Monitoring Reportsa. Monthly NPDES Discharge Monitoring Reports 2008b. Monthly NPDES Discharge Monitoring Reports 2009c. Monthly NPDES Discharge Monitoring Reports 2010d. Monthly NPDES Discharge Monitoring Reports 2011e. Monthly NPDES Discharge Monitoring Reports 2012f. Monthly NPDES Discharge Monitoring Reports 2013 (January -May) "ll'nois StateIllinois Water Inventory Program SurEy2204 Griffith Drive Champaign, IL 61820-7495 Tel (217) 333-0239 Fax (217) 244-0777Please return form by 4/23/10Contact Person and Title:19712795 EXELON -BRAIDWOOD STATIONRAY HALL, ENVIRONMENTAL SUPERVISOR Raymond Hall Environmental Sup35100 S. RT 53, SUITE 84BRACEVILLE, IL 60407 Phone (815) 4173203e-mail: raymond.hail@exeloncorp.comWe have records of the following wells and/or intakes for your facility. Please correct inaccuracies and add missing information on this form.Enter water level information on the last page, if available. If reported amounts are not in gallons, please indicate units of measurement.2008 -TOTAL GALLONS PUMPED -WELLS/INTAKESWell orIntake Status Twn Rng Sec Depth Total Annual Gallons WithdrawnSealed 32N 09E 19.2H 1753 02 In-Use 32N 09E i8.1D 1690 2 500 000TRAINING CTR I3 Unused 32N 09E 19.1H 1750 0POTABLE WATERIn-Use 32N 09E 13.1B 14 819 760 000KANKAKEE RIVER2 In-Use 32N 09E 19.3D 671 216 784 000COOLING LAKE686 039 044 000Total Gallons W ithdrawn from All Sources: .......................................Page 1 of 3 19712795 EXELON -BRAIDWOOD STATIONPlease note that any purchased amount needs to be reported in the column Total Gallons Purchased, below. This amount is needed to indicate the wateruse for your location and your future needs.If your facility is not equipped with meters to calculate total water pumpage, an estimated figure or other helpful information (such as staff population andvisitors, acreage flooded, or time used at estimated pumping rate) is acceptable to help us calculate water usage at your facility.1. 2008 TiA. ProcesB. CoolingTotal Gallons Purchasedotal Pumpage:sing/Washing:& Condensing:Type of Cooling System: E Once-through 9j Recirculation II Other (specify):Discharge: ..................................................................................................................................Consum ption: ............................................................................................................................Total Gallons -Wells/Intakes686 039 044 00020 325 000686 010 207 000C. Boiler Feed:D. Employee/Sanitary:E. Hydroelectric Flows:F. Other: Recirculated Flow2. Supplier of PURCHASED GALLONS:3. Average number of employees, patrons, etc. daily:4. (Power Generation Stations) Your total annual powergeneration during 2008:Net Generation: 19,786,160Units: 1kW M MW 0-GW7 550 310 0007 269 450 00050 0005 962 000671 216 784 000NA820Gross Generation: 20,659,944Other (specify):Page 2 of 3 19712795 EXELON -BRAIDWOOD STATIONWell Treatment, Water Levels, Conservation, and DischargeDuring the last year, have any of your wells had treatment or rehabilitation work? (Examples would be:surging, jetting, acidizing, shock chlorination, etc.)YES __ NO X If yes, please list the well numbers and the type of treatment(s) in the following table.Well No. Treatment(s)If pum tests were done on your wells in the past year, please provide the following information:WATER LEVELSWell no. Airline Water Nonpumping Pumpinglength level(f0)V date Hours Gauge Depth to Hours Gauge Depth to Pumpingoff reading Water On reading water rate(ft)** (i) (f)** (f) (gpm)*Samne as pump setting"If gauge reading is in pounds per square inch (psi), indicate that in the column. Please indicate if the gauge is direct reading.During the last year, were water conservation practices requested or imposed? Yes __ No XIf Yes: Because of limited treatment capacity? Yes __ No __Because of limited water availability? Yes __ NoOther reason?Type of restriction: Dates:Are there any plans to increase treatment or supply capacity? Yes __ No XPlans:Do you discharge wastewater? Yes X No -If Yes, indicate discharge route:To a municipal wastewater treatment system __ System name NATo a stream or other surface water body X YourNPDES permit # IL0048321To a septic systemOtherPage 3 of 3 Illinois StateIllinois Water Inventory Program surveytm2204 Griffith Drive Champaign, IL 61820-7495 Tel (217) 333-0239 Fax (217) 244-0777Please return form by 4/23110Contact Person and Title:19712795 EXELON -BRAIDWOOD STATIONRAY HALL, ENVIRONMENTAL SUPERVISOR Raymond Hall Environmental Sup35100 S. RT 53, SUITE 84BRACEVILLE, IL 60407 Phone (815) 4173203e-mail: raynond.hali@exeloncorp.comWe have records of the following wells and/or intakes for your facility. Please correct inaccuracies and add missing information on this form.Enter water level information on the last page, if available. If reported amounts are not in gallons, please indicate units of measurement.2009 -TOTAL GALLONS PUMPED -WELLSIINTAKESWell orIntake Status Twn Rng Sec Depth Total Annual Gallons WithdrawnSealed 32N 09E 19.2H 1753 02 In-Use 32N 09E 28.11 1690 2 500 000TRAINING CTR I3 Unused 32N 09E 19.IH 1750 0POTABLE WATERIn-Use 32N 09E 13.1B 15 935 040 000KANKAKEE RIVER2 In-Use 32N 09E 19.3D 682 653 840 000Total Gallons W ithdrawn from All Sources: .......................................698 591 380 000Page 1 of 3 19712795 EXELON -BRAIDWOOD STATIONPlease note that any purchased amount needs to be reported in the column Total Gallons Purchased, below. This amount is needed to indicate the wateruse for your location and your future needs.If your facility is not equipped with meters to calculate total water pumpage, an estimated figure or other helpful information (such as staff population andvisitors, acreage flooded, or time used at estimated pumping rate) is acceptable to help us calculate water usage at your facility.Total Gallons Purchased1. 2009 TiA. ProcesB. Coolingotal Pumpage:sing/Washing:I & Condensing:Type of Cooling System: Once-through Recirculation E Other (specify):Discharge: ..................................................................................................................................Consum ption: .............................................................................................................................Total Gallons -Wells/Intakes698 591 380 00024 426 000698 555 169 000C. Boiler Feed:D. Employee/Sanitary:E. Hydroelectric Flows:F. Other: Recirculated Flow2. Supplier of PURCHASED GALLONS:3. Average number of employees, patrons, etc. daily:4. (Power Generation Stations) Your total annual powergeneration during 2009:9 407 530 0006 527 510 00050 0009 235 000682 653 840 000NA820Gross Generation: 20,148,604Other (specify):Net Generation: 19; 227, 979Units: Z- kW 91 MW rDOGWPage .2 of 3 19712795 EXELON -BRAIDWOOD STATIONWell Treatment, Water Levels, Conservation, and DischargeDuring the last year, have any of your wells had treatment or rehabilitation work? (Examples would be:surging, jetting, acidizing, shock chlorination, etc.)YES __ NO X If yes, please list the well numbers and the type of treatment(s) in the following table.Well No. Treatment(s)If pumping tests were done on your wells in the past year, please provide the following information:WATER LEVELSWell no. Airline Water Nonpumping Pumpinglength level(f0)V date Hours Gauge Depth to Hours Gauge Depth to Pumpingoff reading Water On reading water rate(ft)** (ft) (ft)** (Mt (gpm)I I 4 4. I I I I 4Same as pump setting*Samne as pumnp setting**If gauge reading is in pounds per square inch (psi), indicate that in the column. Please indicate if the gauge is direct reading.During the last year, were water conservation practices requested or imposed? Yes _ No X__If Yes: Because of limited treatment capacity? Yes NoBecause of limited water availability? Yes _ NoOther reason?Type of restriction: Dates:Are there any plans to increase treatment or supply capacity? Yes __ No XPlans:Do you discharge wastewater? Yes X No If Yes, indicate discharge route:To a municipal wastewater treatment system __ System name NATo a stream or other surface water body X Your NPDES permit # IL004 8321To a septic systemOtherPage 3 of 3 g Illinois StateIllinois Water Inventory Program Survey_.2204 Griffith Drive Champaign, IL 61820-7495 Tel (217) 333-0239 Fax (217) 244"0777Please return form by 41211 IContact Person and Title:19712795 EXELON -BRAIDWOOD STATIONRAY HALL, ENVIRONMENTAL SUPERVISOR35100 S. RT 53, SUITE 84BRACEVILLE, IL 60407 Phone (815) 4173203e-mail: raymond.hall@exeloncorp.comWe have records of the following wells andlor intakes for your facility. Please correct inaccuracies and add missing information on this fornmEnter water level information on the last page, if available. If reported amounts are not in gallons, please indicate units of measurement2010 -TOTAL GALLONS PUMPED -WELLS/INTAKESWell orIntake Status Twn Rng Sec Depth Total Annual Gallons WithdrawnI Sealed 32N 09E 19.2H 17532 In-Use 32N 09E 28.113 1690TRAINING CTR I3 Unused 32N 09E I9.IH 1750 el elPOTABLE WATERI In-Use 32N 09E 131lB l'ý 1 3KANKAKEE RIVER2 In-Use 32N 09E 19.3D woCOOLING LAKETotal Gallons Withdrawn fom All Sours ....................................... 7_0Page 1 of3 1971 Z 195 tIX-LUN -BKAIUWUUU b I A I IUNPlease note that any purchased amount needs to be reported in the column Total Gallons Purchased, below. This amount is needed to indicate the wateruse for your location and your future needs.If your facility is not equipped with meters to calculate total water pumpage, an estimated figure or other helpful information (such as staff population and 'visitors, acreage flooded, or time used at estimated pumping rate) is acceptable to help us calculate water usage at your facility..41. 2010 1A. ProcesB. CoolinTotal Gallons Purchasedrotal Pumpage:ssing(Washing:g & Condensing:Type of Cooling Systemr C Once-through 0 Recirculation E Other (specify):Discharge: ......................................................................................................................C o n su m p tio n: .................................................................. ...........................................................Total Gallons -Wells/Intakes........ , O, MA)AC. Boiler Feed:D. Employee/Sanitary:E. Hydroelectric Flows:F. Other:2. Supplier of PURCHASED GALLONS:3. Average number of employees, patrons, etc, daily:4. (Power Generation Stations) Your total annual powergeneration during 2010:Net Generation: 19 jc7. 7S Gross Generation: -34 k/Units: [] kW C "MW []GW Other (specify):Page 2 of 3 I tf fI ZI t tAtLUI'4- t$tAIUWUUUýoI A IIUNWell Treatment, Water Levels, Conservation, and DischargeDuring the last year, have any of your wells had treatment or rehabilitation work? (Examples would includesurging, jetting, acid izing, shock chlorination, etc.)Yes __ No)( If yes, please list the well numbers and the type of treatment(s) in the following table.Well No. Treatment(s)If your wells were pump-tested dunng the calendar year, please provide the following water level information.Well Airline Water LevelsNo. length Water level Nonpumping PumpingMX date Hours off Gauge Hours on Gauge Depth to Pumpingreading reading Water Rate(ft.)- (f.* (gpm)*Same as pump setting**If gauge reading is in pounds per square inch (psi), indicate that in the column. If the gauge is direct reading, indicatefeet (ft).During the last year, were water conservation practices requested or imposed? Yes _ No -If Yes: Because of limited treatment capacity? Yes _ No __ Because of limited water availability? Yes _ NoOther:Type of restriction: Dates:Are there plans to increase treatment or supply capacity? Yes _ NoPlans:Does your facility discharge wastewater? Yes_ .NoIf Yes: To a municipal wastewater treatment system? -Name of sTo a stream or other surface water body? YS Your NPDTo a septic system?_Other:ystem: AJAESpermit#: .__,__q______Page 3 of 3 LL OA Illinois Water Inventory ProgramILLINOIS STATEY University of Illinois at Urbana-ChampaignWATER SURVEY.............. 2204 Griffith Drive -Champaign, IL.61820-7463:: PRAIRIE RESEARCH INSTITUTE T'217-333-0239 'F 217-244-0777I Please return form by 5/2112Contact Person and Title:19712795 EXELON -BRAIDWOOD STATION JW" le,; 4P-! eN.&;- h,-- IkALI, ENVIRONMENTAL "UPrRA0 -icR35100 S. RT 53, SUITE 84 1r~'ts Vrn)pih W I~BRACEVILLE, IL 60407 Phone (815) J qrl1-3 ZS7e-mail: I@ameada4I(~exeloncorp.com.We have records of the following wells and/or Intakes for your facility. Please correct inaccuracies and add issing Information on this form.Enter water level Information on the last page, If available. If reported amounts are not in gallons, please indicate units of measurement.2011 -TOTAL GALLONS PUMPED -WELLSIINTAKESWell orIntake Status Twn Rng Sec Depth Total Annual Gallons WithdrawnI Sealed 32N 09E 192H 1753 02 In-Use 32N 09E 2&ID 1690 z S'00 000TRAINING CTR I3 In-Use 32N 09E 19.1 H 1750 0,__ 37 , 1..POTABLE WATERI In-Use 32N 09E 13.1B a 001 23-0 00KANKAKEE RIVER2 In-Use 32N 09E 19.3D "71 8 0 0 0COOLING LAKETotal Gallons Withdrawn from All Sources: ......................................._ L, .fIQ...T o L, O'. 'Page 1 of3 19712795 EXELON -BRAIDWOOD STATIONPlease note that any purchased amount needs to be reported In the column Total Gallons Purchased, below. This amount Is needed to indicate the watiruse for your location and your future needs.If your facility is not equipped with meters to calculate total water pumpage, an estimated figure or other helpful information (such as staff population andvisitors, acreage flooded, or time used at estimated pumping rate) is acceptable to help us calculate water usage at your facility.Total Gallons Purchased1. 2011 Total Pumpage:A. Processing/Washing:B. Cooling & Condensing:Type of Cooling System: D Once-through [ Recirculation E] Other (specify):D ischarge: ....................................................... ........ ................ .........................................Consumption: .................... ............................. ............................ ; .........................Total Gallons -Wells/Intakes-7 9NZ, TOO, 0_...1.3 .-000"72., _ , -__1_,L 0006'6-0 '710 600..-. -', oooC. Boiler Feed:D. Employee/Sanitary:E. Hydroelectric Flows:F. Other C L A~t iu2. Supplier of PURCHASED GALLONS:3. Average number of employees, patrons, etc. daily:4. (Power Generation Stations) Your total annual powergeneration during 2011:Net Generation:: q "Unit: D]kWV I MWV [ DGw60 6000__713, 021g,.0.-0, 0o0820Gross Generation ZO. "Z31 U 10Other (specify):Page 2 of 3 19712795 EXELON -BRAIDWOOD STATIONWell Treatnent, Water Levels, Conservation, and DischargeDuring the last year, have any of your wells had treatment or rehabilitation work? (Examples would includesurging, jetting, acidizing, shock chlorination, etc.)Yes No .If yes, please list the well numbers and the type of treatment(s) in the following table.Well No. Treatment(s)If your wells were pump-tested during the calendar year, please provide the following water level Information.*Same as pump setting**If gauge reading is in pounds per square inch (psi), indicate that in the column. If the gauge is direct reading, indicatefeet (ft).During the last year, were water conservation practices requested or imposed? Yes __ NoIf Yes: Because of limited treatment capacity? Yes ___No__ Because of limited water availability? Yes__ NoOther:Type of restriction: Dates:Are there plans to increase treatment or supply capacity? Yes _ NoPlans:.Does your facility discharge wasteweter? Yes X. NoIf Yes: To a municipal wastewater treatment system? -Name of sTo a stream or other surface water body? L Your NPDTo a septic system?Other:ystem:ESpermit#. IL 3Page 3 of 3 -Exelon GenerationOExelon Generation Company. LLCBraidwood Station35100 South Route 53, Suite 84Braceville, IL 60407-9619www.exeloncorp.comApril 12, 2013Bw130039Tim Bryant, CoordinatorIllinois Water Inventory ProgramIllinois State Water Survey2204 Griffith DriveChampaign, IL 61820-7495tbryant@illinois.edu
Dear Mr Bryant:
Subject:
Illinois Water Inventory ProgramEnclosed please find the Exelon Braidwood Generating Station Illinois Water InventoryProgram data for 2012.If you have any questions or need additional information, please contact John Paul Georgiouat (815) 417-3284.Respectfully,Mark E. KanavosPlant ManagerBraidwood Nuclear StationAttachment L S Illinois Water Inventory ProgramTIL L University of llinois at Urbana-ChampaignWATER SURVEY 2204 Griffith Drive. Champaign, IL 61820-7463L PRAIRIE RESEARCH INSTITUTE T 217-333-0239 -F 217-244-0777I Please return form by 616113Contact Person and Title:19712795 EXELON -BRAIDWOOD STATION John Paul GeorgiouPAUL GEORGIOU, ENVIRONMENTAL CHEMIST Environmental Chemist35100 S. RT 53, SUITE 84BRACEVILLE, IL 60407 Phone (815) 4173284e-mall: joh n.georgiou@exeloncorp.comWe have records of the following wells andlor intakes for your facility. Please correct inaccuracies and add missing information on this form.Enter water level information on the last page. if available. If reported amounts are not In gallons, please indicate units of measurement.2012 -TOTAL GALLONS PUMPED -WELLSIINTAKESWell orIntake Status Twn Rng Soc Depth Total Annual Gallons WtIdrawn2 In-Use 32N 09E 28.1D 1690 2 500 000TRAINING CTR I3 In-Usc 32N 09E 19.1 1750 45 023 000POTABLE WATERI In-Use 32N (1E 13.18 18 364 320 000KANKAKEE RIVER2 hi-Use 32N (9e 19.31D 683 600 000 000COOLING LAKETotal Gallons Withdrawn from All Sources: 702 011 843 000Page I of 3 S, , 1971279S EXELON -BRAIDWOOD STATIONPlease note that any purchased amount needs to be reported in the column Total Gallons Purchased, below. This amount Is needed to Indicate the wateruse for your location and your future needs.If your faility is not equipped with meters to calculate total water pumpage, an estimated figure or other helpful information (such as staff population andvisitors, acreage flooded, or time used at estimated pumping rate) is acceptable to help us calculate water usage at your facility.Total Gallons Purchased1. 2012 Total Pumpage:A. ProcessingAWashing:B. Cooling & Condensing:Type of Cooling System:JJ Once-through F7 Recirculation [J Other (specify):Total Gallons -V'llintakes701 966 820 0001 887 000701 954 100 000Discharge: .............................................................C on sum ption: ..............................................................................................................................C. Boiler Feed:D. Employee/Sanitary:E. Hydroelectric Flows:F. Other. Recirculated Flow2. Supplier of PURCHASED GALLONS:3. Average number of employees, patrons, etc. daily:4. (Power Generation Stations) Your total annual powergeneration during 2012:Net Generation: 19,069, 132Units: M-kW -x MW -- GW7 827 900 00010 536 420 00050 0008 283 000683 600 000 000N/A882GrossGeneration: 20,687,736Other (specify):Page 2 of 3 19712795 EXELON -BRAIDWOOD STATIONWell Treatment, Water Levels, Conservation, and DischargeDuring the last year, have any of your wells had treatment or re habilitation work? (Examples would includesurging, jetting, acid izing, shock chlorination, etc)Yes __ No_-X If yes, please list thewell numbers and the type of treatment(s) in the following table.Well No. Treatment(s)If your wells were pump-tested during the calendar year, please provide the following water level information.Well Airline Water LevelsNo. lengthN. lnth Waterlevel Nonpum ping Pumpingdate Hours off Gauge Hours on Gauge Depth to Pumpingreading reading Water Rate(ft. r -Y(ft.)* (gpm)*Same as pump setting"If gauge reading s in pounds per square inch (psi), indicate that in the column. If the gauge isdirect reading, indicatefeet (ft).During the last year, were water conservation pradices requested or imposed? Yes__ No XIf Yes: Because of limited treatment capadcy? Yes -No Because of limited water availability? Yes _NoOther:Type of restriction: Dates:Are there plans to increase treatment or supply capacity? Yes- No _XPlans:Does your facilitydischarge wastewatee? YesX No-If Yes To a municipal wastewater treatment system?_ Name ofTo a stream or other surface water body? X Your NPDTo a septic system?Other:iystem: _ _ _ _ _ _ _ _~ES permit #:__IL0048321Page3 of 3 Exektn,Exelon Generation Company, LLCBraidwood Station35100 South Route 53, Suite 84Braceville, IL 6o4o7-9619www.exeloncorp.comNuclearCERTIFIED MAILFebruary 26, 2008BWO80019Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the January 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Joe Tidmore at (815) 417-2299.Respectfully,Lawrence M. CoylePlant ManagerBraidwood Generating StationEnclosure NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NP JEsOOR QUALITY ORIGINAL IDISCHARGE MONITORING REPORT (DMR) OCR0501PERMrTTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville. IL 60407IL0048321PERMIT NUMBER1001 ADISCHARGE NUMBERMAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT*"
- NO DISCHARGE [" ."MONITORING PERIODYEAR MONTH DAY YEAR MONTH DAYFrom: 08 01 01 -To: 08 1 01 31 dNUTE: Read instnrctions fore completi this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO FREQUENCY SAMPLEPARAMETER OF PEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS E ANALYSISSOLIDS, TOTAL SAMPLESUSPENDED MEASUREMENT ..(62441 04D00530 1 0 0 __ -...-- -, s:-:0 --EFFLUENT GROSS VALUE 'REF IREIMEN!,t .-LBS/DY -Y- D AVG- ' MG/L .. WEEKLY- --fI.....OIL AND GREASE SAMPLEOI-N RAESML ------ (26) ------ 3.69 3.69 (19) 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENT ...... .... () ...6.19250P0T'5.5' -'"0" 1.15.0." -0 200 " M0 .--'ONCEL.'. "" EFFLUENT GROSS VALUE z. REQUIREMENT,, Z -- -"- _" " : AY`AVG A-Y.MAX ___ MONT.' -.,. .FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.044 0.082 (03) ........... 0 135 TM5,.-.PER .,1 -:."0T0. 1-0l0-REPORT-EFFLUENT GROSS VALUE REURMNZ 0DYf DJYMX'.___ ____-.. ,..TTlSAMPLEMEASUREMENT~REOUIREET. -- ~ .___ ~ jfi ~: __ ,SAMPLEMEASUREMENT__ __.__ _ _ --'REOUIR EMENT..' .....-.. ._____ .-: -,:- .....__. ...... ....SAMPLEMEASUREMENT-~. -E.... ,.A --=--*.- .SAMPLEMEASUREMENT____ _"_........_"... EQUIRI. .ENTQ _ t_ .. ... ..-NAMEI1TLE I ceatny under penalty of law that this document and at attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER airection or supervLson in accordance with a system designed to assure that quaffied personnel _"..property gather and evaluate the Ironfration submitted. Based an my Inquiry of the speon or N E 815 417-2000 08 02 26Lawrence M. Coyle persona who manage the system, or those persons directly responsrible for gathering the tntoral ', 08 02 26the intonnation subnitted is. to the best of my knowtedge and betel, true. accurate, and oni :. I _ __ OF PRINCIPLEPlant Manager am aware that there are signftcant penalties for submin false infotmaton, Including the h EXFCU E OFFICER OR AREA NUMBER YEAR MONTH DAYSOR PF --M of fine and itIprisonment for Inowtn vioiatio .Zs.I JUT PRIZED AGENT CODE ___ ____ ___COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF1a POOR QUALITY RIGNNATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt 53, Suite 84Braceville, IL 60407DISCHARGE MONITORING REPORT (DMR)IL0048321 001 13I ,.o.3_ I I ~PERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODYEAR I MONTH DAY YEAR I MONTH DAYFrom: 08 1 01 01 To:L 08 1 01 31OCRO501MAJORII (SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENTS*"* NO DISCHARGE j jNOTE: Read instructions .efore cormo.e.in this formPARAMETER QUANTITY OR LOADING QUANTITY OR CONCENTRATION NO FREQUENCYAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX OF L S APE> ANALYSIS TPSOD, S-DAY SAMPLE(20 DEG. C) MEASUREMENT 0.56 1.37 (26) 5.1 8.2 (19) 0 240 DC00310 1 0 0 4:Rr~. %'30 304.~Z 600.EFFLUENT GROSS VALUE 00AVi "BS/"" "0 ., 0..,, MG/I -""--I.RE E E --y. ..... ..... ..- .... ý' ..... .- -.. _ ...,; .'________ : -~~ ~30DAY'~AVG :-(DAILVYMAX' __ ..: ~ ___PH SAMPLE ___MEASUREMENT ----( 7.43 ......... 7.94 12) 0 240 GR00400 1 0 0 1% E!T~ __ ,~60~ L ~GAEFFLUENT GROSS VALUE ?REOUIREMENT: .*- .MINIMUM-- -'--- MAX-MU- _._.-."E -__.:_,SOLIDS, TOTAL SAMPLESUSPENDED MEASUREMENT 0.69 1.47 (26) 7.8 11.5 (19) 0 240 DC00530 1 0 0 391PER-r 7--'.-- ".30 -'j 139:Oý! .............,"LBS/DY WEEY:' £0MP24EFFLUENT GROSS VALUE -REQUI4 ......... -AIi+/-:MAX B -. -.. -30:DA VGe.! :M-AY MA.....__ ..-FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.014 0.042 (03) ---.--- 0 135 CN50050 1 0 0 MOD -..REP.. :' -; .. :*"" -;--;-"I -"':-" .:EFFLUENT GROSS VALUE R ...-. _..-._ : .DAIL-. SAMPLEMEASUREMENTSAMPLEMEASUREMENT ~- 'ZSAMPLEMEASUREMENT I__ _ __ _ _ __ _ REQUIREMEN' " -' _______ ........ _-__ ....NAMFErlTiL.E ! certify under penalty of law 0a thfis doctauent and all attachments were prepared wider my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER drecton or super~sion in accordance wth a system designed to assure Mt qualiTEed PemPnneLreperlyncerarevaluatethe nfomadw subntted Based Cn my iq~ry of the Pars- Of 815 417-2000Lawrence M. Coyle persons who manage the system, or those perons direcly responsble for gathering the Ionratd s 0N ATURE F INCIPLE 0_ 02_26the aiorntion submitted Is. to the best of my knowledge and berter, true. accurate, and complIete, I _ XEU__OIC__ _ ER_Plant Manager am aware that there are sgrscant penafties for submrt false information, inldin he possbfty EXC T ER OR AREA NUMBER YEAR MOTH DAYSR~t Pre, oo if fine and imprisanrment for knowing violations. AUTHO iZ AGENT CODE YECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachmefte here)EPA Form 3320-1 (Rev 3/99) OR PAGE I OF 1 POOR QUALITY ORIGINALjPERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR) OCROS01MAJOR1L0048321 001 C (SUBR 02)PERMIT NUMBER DISCHARGE NUMBER F -FINALRADWASTE TREATMENT SYSTEMMONITORING PERIOD EFFLUENTYEAR MONTH DAY I I YEAR MONTH DAYFromn:I 08 01 I 01 I To: I 08 01 31 .NO DISCHARGE E]il, lhle lr=rlTINOTE: Read ..fo.. .rmQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF__TYPOAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSISSOLIDS, TOTAL SAMPLE..... TOA(. APE26) ....... .<1 <(19) 0 240(1) CPSUSPENDED MEASUREMENT00530 1 0 0 -'ERITlD- " ... MCA -LSD "-.WE-3M ....EFFLUENT GROSS VALUE .-RE-UIR.-- -T -... ______, _.BS__ -'.<d' 0 M ,.- -_ _:., ...OIL AND GREASE SAMPLE(SOXHLET EXTR.) TOT MEASUREMENT00550 1 0 0 .J PE.... Z~-EFFLUENT GROSS VALUE -- .%: -_.DAIL--L00'"-FLOW, IN CONDUIT OR SAMPLE 0 135 CNTHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 "~.PERMITS ;,ýLREPORTz' rt -REPORTi-,'%,.a~EUIEMNT- , t MGD _ .~DAILY- --CONTINEFFLUENT GROSS VALUE _______ 0DA'VG-DALRMX= MEW- _ -'SAMPLEMEASUREMENT _____RE UIE EN = a ... .. .SAMPLEMEASUREMENT..'Z-PIERMIT--.>; ........ ,-- _:;-" Z' *1.. "'1/2- = " =- ;:--' C.: "-": -_ _--__ REGUIREMENTý --,..... :..-SAMPLEMEASUREMENT... ..... ....... .1.7........,rREQUIRENT '.. ,.-...7*1~ ~ ~ ~ i _________SAMPLEMEASUREMENTNAETE I cantdy under penalty of law tha Offt document anid alt attachments were prepared under myf TELEPHONE DATEPRINCIPAL E.,ECUtVE OFFICER direction or spe ri- in accordance with a system designed to assure that qualified personnel -: -properly gather and evalutate the Information submitted. Based on my mqnyof of the pe1son0orLawrence M. Coyle persons who manage the system. or those persons directty respons~be for gatherng o theIL 0it I22the intormiation submitted is, to the best of my knlowledge and beliet. true. accurate, and .,dGNATUR0OF ICPE________Plant Manager ame aware that there are significant penalties for submtreting false infotrmation, Includling the 00EXECU7V 0 FER OR AREANUBRYA MOTDYTY O ufT ltfine and Imriprsornment for knowm viltos AUTHMIZE IAGENT CODE ______YEA MONTH__ DAY_COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Rederence all attachments here)(1) Samples are taken weekly when discharging. No discharge weeks of 1/1/08,1/7/08. 1/21/08 and 1/28/08.EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF1 PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Fit. 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)=L0048321 001 0PERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODYEAR MONTH DAY I I YEAR MONTH DAYFrom: 08 01 01 1 To:°' 08 01 31POO QULI TYC 0INASPOOR QUALITY OCRO501MAJOR(SUBR 02)F -FINALDEMINERALIZER REGENERANT WSTSEFFLUENT*
- NO DISCHARGENOTE: Read instructions tefom complefinn this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO FREQUENCY SAMPLEPARAMETER X OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSISSOLIDS, TOTAL SAMPLE.... 6 0.6 <1 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 ;,. PERMIT.--~- .. ....15..' .-. ._.LBS/ ++.DY ..MG.L 1.- ..CP.-EFFLUENT GROSS VALUE -.-F IJIREMENT ':. ._______.__ ... ____ '-._---"-_ A-LYMAX __. --...FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.014 0.031 (03) 0 135 CN5-tMGD -.YEi-N-. EPO, --- ""EFFLUENT GROSS VALUE E'UIREilT§ ,3ODAY,'AVG DAL MAX MGD ___ .o ._ ........ ______._._- -.- '_D_,.. NSAMPLEMEASUREMENTSAMPLEMEASUREMENT /___________ U -ktiltT --t.KM-~- __________SAMPLEMEASUREMENT___________ ____________..____ _,__ :R O....NT ' .._.-. .. 7 ... -J 7.~- ~. ---- ...SAMPLEMEASUREMENT _:__ _ _ _ _ _ _ _ 4 E U R M H ~ ~ '.*-- ~ Q s ~ _ _ _ _-,- ,: _,-_.v_ .:-,+-'-" *_.....__ -_--_-___..' "SAMPLEMEASUREMENTNAETE I certify under penatty ot taw that Oth document and atl attachmerta were prepaed wider my TELEPHONE DATEPR1INCIPAL EXECUTIVE OFFICER direction or supervision in accordance with a system designed to assure that qualifed Personnel ____ __property gather arid evaluate the irnformation submitted. Base on my lequtY at the person ofr1514720Lawrence M. Coyle persons who manage the System, or those persons directly responsible for gathertng the W tnt NTRILE0 22PlntMaagr the information submitted a., to the best of my linowledge and belief, true, accrate, and .21 U___EAEANMERYAR MNTAPlat anaer am aware that there are significant penalties ter submittfing (alase informatiotn. Incluiding the poWsa EXECUT E OFFi "E R OR AEof tine arid hImprlsonmnent for (gowngv violaiaons. NUMBE YEARD MONTCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OFi1 NATIONAL POLLUTANT DISCHARGE EUMINATION SYSTEM (NPDIS)POOR QUALITY ORIGINALDISCHARGE MONITORING REPORT (OMR) OCHOuuPERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braveville. IL 60407IL0048321PERMIT NUMBER001 0DISCHARGE NUMBERMONITORING PERIODYEAR I MONTH I DAY I I YEAR I MONTH I DAYIMAJOR(SUBR 02)F- FINALCOOUNG POND BLOWDOWN UNEEFFLUENT.NO DISCHARGEFrom: I 08 011 01 1 To:1 08 I 01 1 31Ii ! f INOTE: Read instrctions bfore COM...e.ino this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION FREQUENCYPARAMETER NO.SAMPLENOAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPETEMPERATURE, WATER SAMPLEDEG. FAHRENHEIT MEASUREMENT ---- --.. .... 62 (15) .0 135 CN00011 1 00 0-'.'PE-MiT'. -" ... -. -÷*-.- ... -EOTEFFLUENT GROSS VALUE AREQ"IREMT -_...,'-__ " -;-F." "-"-'.--j... -: DEG. F , pPH SAMPLEMEASUREMENT ............... 8.27 877 (12) 0 240 GR00400 1 0 0 .. T.Y- _ -,- laý--9'0.s,--.E:REOUF .. :.- .. *MNIM-M ,-.FLUENU GROSS.- VALUE- --.OXIDANTS, TOTAL SAMPLERESIDUAL MEASUREMENT ...... ...... (26) ...-.--- .--- <0.03 (19) 0 285 GR34044 1 0 1 -B.I, MOIL :..-EFFLUENT GROSS VALUE E iilkN f t-._.. .-- L -AYMA.& M-G.L.-M -R. -.NTH.FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 21.65 37.15 (03) ..........0 135 CN50050 1 0 0 --E T_. -. -- RE Pe_ R , .- , ----. .-EFFLUENT GROSS VALUE REOUiREMENT2 _k30DAY.AVG ~ .DIYMX ___ ~ :-#; --~.DIY~CNI.CHLORINE, TOTAL SAMPLE ---- 26) N/A(1) 19 -500 OTRESIDUAL MEASUREMENT ............._26)_.... NA(1) (1)__50O50060 1 0 0 'PEMIT-_I --. ......LBS/DY MOI .... AB~- NEEFFLUENT GROSS VALUE krEQUIRM -' zn--.'ln.- ."ý-.-, Y-'DAiLY-MAX-... -!T .--CHLORINATION DURATION SAMPLENT 110 14) 0 135 MS78739 1 0 0 --.--': REPORTwý --SEE-EFFLUENT GROSS VALUE ý'RECQUIREET, -7 .. -____*f'j ALYMXC-____ JPEMT W 'CHLORINE USAGE MEASUREMENT 1617 1836 26) (19) 0 135 MSEFFLUENT GROSS VALUE 0-REOU5REEV .. -5____'-.__.__ NAMFJTITLE I certify under penalty of law that this document and an altachmwent were prepared under my TELEPHONE DATEPRINCIPAL EXECrIJ~VE OFFICER direction orsuper sion in accor-dance with a system designed to assure that qualified personnel ATpropeiy gather and evaluate the information submitted. Based on my inqury of the person orLawrence M. Coyle perons who manage the system. or those perons direcay responsible for gathering the 41f-200W0 26theinformation submitted is. to the best of my knowledge and beief, true, accurate, and te. I TU EO INCIPLEPlant Manager am aware that them ame significant penalties for submitting false inforeTation, includg the ECUTIVEO FR R OR AREA NUMBER YEAR MONTH DAYTYPED CA PRWEDa o fine and imprisonment for knowing violations. zCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachmente here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3/99) DR PAGE I OFI ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: January 25, 2008Time: 1:15 p.m.0.080.07cc6 _a 0.060.05060.04<0.03510152025Time (Minutes)The Unit I and Unit 2 main cooling condensers will be routinely treated at approximately.1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.January Bromine Usage: 291 lbs. Monthly Average374 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/I'-ý receM. Coyle, Plan anagerBraidwood Nuclear Sta' n.
- " Exe tn.4Exelon Generation Company, LIC www~exelon 4 lI7FBraidwood Station V °C e '5°C°Nuclear35100 South Route 53. Suite 846 Braceville, IL 6o4o7-9619 .MAR31 iBy.Y.CERTIFIED MAILMarch 25, 2008BW080029Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring Report.Enclosed please find the February 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Joe Tidmore at (815) 417-2299.Respectfully,Plant Manager (Braidwood Generating StatioEnclosurea 0 0NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0048321 001 APERMIT NUMBER DISCHARGE NUMBERI MONITORING PERIODYEAR I MONTH I DAY I I YEAR I MONTH I DAYPERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407OCR0501MAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT* *
- NO DISCHARGE ID ...l l l l-....I --IFrom: I 08 1 02I -II01 I To: 1 08 1 02 1 2I l INOTE: Reed instnuctions fore cornletn this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION FREQUENCY SAMPLEPARAMETER ______NO. OAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX A TYPESOLIDS. TOTAL SAMPLE...... (26) 3.8 4.2 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 -EWM_ ~ LBS/DY ~~-~M/EFFLUENT GROSS VALUE tItR. Rt :" ,K., ,_, _' -, " -."OIL AND GREASE SAMPLE 26) 2.97 2.97 19) 0 285 OR(SOXHLET EXTR.) TOT MEASUREMENT (26) 2.97 2.97 (19_028 _ G00550 1 0 0 ....". W .,S- -"FLOW, IN CONDUIT OR SAMPLErHRU TREATMENT PLANT MEASUREMENT 0.049 0.083 ( 03) .........--- *- 0 135 TMEFFLUENT GROSS VALUE ASUR MENSAMPLEMEASUREMENTFLOW IN ONDUT ORSAMPLE0.400803----015TTP MEASUREMENTSAMPLEMEASUREMENT~~~~~ ..~ .~ .-. .._ _ ..~-~NAMErrTrnJE erif une peal o a IM ouetan at] stdnenI were prepared under my ..TEPOEDATEPRINCIPAL EXECUliVE OFFICER iitrect~on or supervsIon in accodance wIth a system designed to assure thai ltted personnel ______Lawrence M. Coyle persore who manage the system, or those pereons directly responsible for gather~ng the sinfta RNCPE0 32Informa-ton .submitted Is. to the best of my krnowltedge and belief. tree, accurate, and comptet N PICILE_ __ _Plant Manager am aware thatfthereareslgstcrtpenaltiesor submitting faleeinformatlon. Includingthe passidF UTIVE OR ARE NUMBER YEAR MONTHDAOR n Intpmionmenrt tor UTNOR AGENT CODE___COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference eli attachments here)EPA Form 3_320-_1 (Rev 3/99) DR PAGEl1OF 1 PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarenviWle, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (OMR)110048321 001 BPERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODOCR0501MAJOR(SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT... NO DISCHARGEI YEAR I MONTHI DAY I I YEAR I MONTHI DAY IFrom: 1 08 I 02I 01 I To: 1 08 I 02 I 29 II I t i[ I I mJ.... .IL* mNOTE:U IR teao Instr.CWoO fe comoletin 'ths formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS TYPEBOD, 5-DAY SAMPLE(20DEG.C) MEASUREMENT 1.03 2-2 (26) ..... 7.6 11.0 (19) 0 240 DC00310 1 0 0 -- ........ ...... _ _ _ M G/I : ._'EFFLUENT GROSS VALUE REQUilMER i AAVG ZiYW _ODKX'4- ______PH SAMPLE 7.34 7.77 (12) 0 240 GRMEASUREMENT __________00400 1 0 0 ýMMIIi~ Rm S_. uEFFLUENT GROSS VALUE 'aRROU 0 *IA --- A. SU 9.SOUDS, TOTAL SAMPLESUSPENDED MEASUREMENT 0.73 1.2 (26) ....... 6.3 8.4 (19) 0 240 DC00530 1 0 0 g~ I~~h$ LWi/DY Aý -C IP24EFFLUENT GROSS VALUE AUREMEN-FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0012 0.028 03) 0 135 CN5W050 1 0 0 _ R.WRT-T ,&BEPORT-, -.,.- ---..< : ' ':EFFLUENT GROSS VALUE EG_SAMPLEMEASUREMENT... .... ....£ --SAMPLEMEASUREMENT ' ..- PRINCIPAL F.XECUTIVE OFFICER rarectirs or supervislon a a cordan~e wit a system desine to zssuwe that qualified peronnl______Le rnceuBCoo 815 417-2000 01 03 0the mlormatlonsutntitted Is. tte best Mmy tncwet~eagnd belef, true, accu~rate. and orptet NATU OFRINCIPLR _c___NMBE YEAR _MNTH_ DAPlant Manager am aware that ier are sigifcnt penalties toe submittig teie Inom~~rint,~ sauetng theEE OFCROR AANUBRYR MNTDYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments he)reEPA Form 3320rO-I (Rev 3/99) DR PAGE 10FoIp S 0 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407I IL0048321PERMIT NUMBER001 CDISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F -FINALRADWASTE TREATMENT SYSTEMEFFLUENT* *NO DISCHARGE- "I MONITORING PERIODYEAR MONTHI DAY I MONTH AYFrom:l 08 I 02I 01 I To: I 08 1 02 I29 1NOUTE: Read instructions feore competin tflhS formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OFP TAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX TYPEAVERAGEANALYSISSOUDS, TOTAL SAMPLE 2 106 14.5 19) 0 240(l) CPSUSPENDED MEASUREMENT ....... ()0_4(1 0 21C00530 1 0 0 .-- Y .MG/ --EFFLUENT GROSS VALUE _ROUFITWN Z ____ ___.~~AGrOIL AND GREASE SAMPLE(SOXHLET EXTR.) TOT MEASUREMENT00550 1 0EW 0 w B/Y 2EFFLUENT GROSS VALUE .E ?AVG, A-_ A MGFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 40 .MGD -, __--c4. 4eoN.fri! "EFFLUENT GROSS VALUE RMEQIRIMNT , ,' M A X MGD_ ______SAMPLEMEASUREMENT'~'pqMt~EASUREMENT~S~_ _ .WN '55 , -; -1~ 5SAMPLEMEASUREMENTSAMPLEMEASUREMENTNAME/Tn.E I certify wnWer penalty of law tat this document ard all ttam were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER carection or supervisio In accordance with a system designed to assutre na qualifed pereonnel __fpropely gather ard evaluate the Ilnformation sumitted. Based on my bIqisry of the person or 815 417-2000Lawrence M. Coyle persons who manage the system, or Itxins persons dreclty responsible for gathering the R P LEthe afomiabon submitted is. to the best of my Ioed and beitef. tnre, accurate, and a.e. IGNA E 0 IPPlant Manager nam aware that there ame significanr pari1ets for submitting false information. including the Ity EXECI CER OR AREA NUMBER YEAR MONTH DAYTrWa OR __tWW of in and Imprsoment for waxing v____ _ _ AUTI_)Ri IED AGENT CODECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments hem)(1) Samples are taken weekly when discharging. No discharge weeks o 2/4/08 and 2/111/08.EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OFI PERMITFEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)1L0048321 001 DPERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODYEAR I MONTHI DAY I I YEAR-I MONTHI DAYOCR0501MAJOR(SUBR 02)F- FINALDEMINERALIZER REGENERANT WSTSEFFLUENT.*. NO DISCHARGEE "From: I 08 I 021 01 ITo: 08 1 02 1 29IaNOTE: Read instuctions before como.etina this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION FREQUENCYPARAMETER EX OF YPOEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSISSOUDS. TOTAL SAMPLESUSPENDED MEASUREMENT ..-..... (26) ...... <1.5 3.6 (19) 0 240 DC00530 1 0 0 Q L.SDY .-- M -EFFLUENT GROSS VALUE Z REQUIUR MG/L -80RD9 OEM-MA~FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT .. 035005 1 0 0 MOD ~ -A~t MRPOEFFLUENT GROSS VALUE ...MGD ~ SAMPLEMEASUREMENTSAMPLEMEASUREMENTSAMPLEMEASUREMENTSAMPLEMEASUREMENT..SAMPLEMEASUREMENT______________ REQUIRMN&4/I, ceIrty under penafty of law that et. documeat and am attachments were prepared under myF TELEPHONE DATEPRINCIPAL EXECUIVE OFFICER direction or superision1 In accordance with a system designed to assure that qualified personnelproperty gather and evaluate te Informatron subnmtted. Based on my Inquay of the person orLawrence M. Coyle persons who manage the system, or those persons directly responsible for gathering the Iti81T 0 08 03 25the Information submitted is. to te best of my Inowledge and belret, true, accorate, and complete.a I NATU F PRINCIPLEPlant Manager am aware that there are sIgntficant penaftles for false inc&dIng the possa. EXEC OFFICER OR AREA NUMBER YEAR MONTH DAY___ OR RTED of fie and imprionRment for WowIng violatons. AUTHORIZED AGENT -CODCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF 1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 0DISCHARGE NUMBER jMAJOR(SUBR 02)F -FINALCOOUNG POND BLOWDOWN UNEEFFLUENT... NO DISCHARGEI MONITORING PERIODYEAR I MONTH I DAY I I YEAR I MONTH I DAYI -- I -: I II -I --IFrom: 1 08 I 02I 01 I To: 1 08 I 02 129!NOTE: Read instructions reore compte this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER _____ ___N. OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPETEMPERATURE, WATER SAMPLE (15) 0 135 CNDEG. FAHRENHEIT MEASUREMENTO 15 0. 0 *R -A T._..00011 1 0 K ,....., DE ." " ' 'r1," mr'eEFFLUENT GROSS VALUE *,REQUIKEMENTf. ýF Wig_ --..-~~___ ___PH SAMPLE .... 8.67 ...... 8.9 (12) 0 240 GRMEASUREMENT00400 1 0 0 ptEýf'~.~-~ ~ ~ ~EFFLUENT GROSS VALUE A -UREEIT~ ____ ___ W~U~_M ~ ~____OXIDANTS, TOTAL SAMPLE (26) < 0.03 (19) 0 285 GRR ESIDUAL M EASU R EM ENT __.. ...__.. _ _ _ _._ _-_ _,__ _ _,,_34044 1 0 1 & P 4-wY smW-G7 A-EFFLUENT GROSS VALUE R+_ IREMV.T N r .____ -- -FLOW, IN CONDUIT OR SAMPLE 19.22 21.29 03) 0 135 CNTHRU TREATMENT PLANT MEASUREMENT ..... -,--- 0'1.5 CEFFLUENT GROSS VALUE ~E~lEE;.DAG _______CHLORINE, TOTAL SAMPLE (26) N/A(1) 19) -5 OTRESIDUAL MEASUREMENT50060 1 0 0 , P "+ LBS/DY MG/. RAS.. ++ o .. ..+mMqEFFLUENT GROSS VALUE ViQ......... ""-rGL0SAMPLE 110 14) 0 135 MSCHLORINATION DURATION .....---MEASUREMENTI .o78739 1 0 0 WE.... ,-. _ INUESEFFLUENT GROSS VALUE FR-OUI _____ ... W=,---:. M.XA , 10 22WCHOIEUAESAMPLE 1334 1466 (26) (19) 0 135 MSCHLORINE USAGE MEASUREMENT ______ ___ _-.- .., .81400 1 0 0 AE .MG1 LBS/DYEFFLUENT GROSS VALUE ROtMt4 A6 LY___ --____NAMErnTLE I certify undar penalty of law that this document an an attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECLTIVE OFFICER drecton or supervisio in accoidance with a system designed to assure that qualfied lpropeity gather and evaluate the information submitted. Based On my of the pesmo or Z/C x- 815 417-2000Lawrence M. Coyle pemrm who manage the system, or tf .,e persons drect/y res. se for gathemng the .o .N OF P 25INCIPLEthe information subrrrtted is, to the best of my wea edge and betel, tum, accurate,"and I ._A. --Plant Manager snaware that there are sqgfiant penalies for submiting false Wormalonn, ntud" the PEXEC IVE 0 CER OR AREA NUMBER YEAR MONTH DAYiof rn and Imprlso for knowing viatis. .AUT. AGENT CODA'CTYPEDOR T AET CDCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3199) DR PAGE i ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: February 28, 2008Time: 1:10p.m.0.080.0700.06* ES0.05I.-0.04<0.03510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.February Bromine Usage: 263 lbs. Monthly Average436 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/I,:aw~eck ol, liýNaeBraiwoodNuclar Sat '
- RPMExelon Generation Company, LLC www.exeloncorp.comNBraidwood Station35100 South Route 53, Suite 84BTaceville, IL 60407-9619CERTIFIED MAILApril 25, 2008BW080043Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the March 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Joe Tidmore at (815) 417-2299.Respectfully,Zawrence M. CoylePlant ManagerBraidwood Generating StatioEnclosure NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exeton Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 ADISCHARGE NUMBERIMONITORING PERIOD[ YEAR MONTH DAY I YEAR MONTH DAYOCRO501MAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT.NO DISCHARGE EJ"From: I 08 I 03 1 01ITo: 08 I 03 1 31I lI i I INOTE: Read instructions eore completin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARAMETER EX OF YMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS, TOTAL SAMPLESUSPENDED MEASUREMENT (26) ...... 3. 4.2 (19) 0 240 DC____~~t 2! --415,-~ U00f00530 1 0 0 GILIT -Olt.LBS/DY P>4.ZL*. MGI-EFFLUENT GROSS VALUE _jE'iUIBEMT: "" -: -,.- --"". ."30 DAY51G 2A"4A .WEIY'. MI'OIL AND GREASE SAMPLE 28) 2.97 2.97 19) 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENTPERtMIT LSD00550 1 0 0 LBID M * ** 15/EFFLUENT GROSS VALUE -REQUiREMENT .._..."_... B Y .-30 DAY.AVG -DAIY/MAX:.. ..MONihFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0 0 050050 1 0 0 :- ýPERMIT REPORT REPORT MD '-- DAILY';" ,{ 24I]EFFLUENT GROSS VALUE ':'--3DAY.AVG DAILYMMA" "_" "-" .-'--'."' __,__"_ ___"""__..TOTALSAMPLEMEASUREMENT~'PERMI-REQUIREMEN'T -_____SAMPLEMEASUREMENT_____PERMIT -SAMPLEMEASUREMENT ____________zrPERMMT_ _ _ _ _ _ _ _ _ -R Q IE E .-_. *. **.," _. ..-"..... .....-'_-_'SAMPLEMEASUREMENT';" ~~.. ........ ...., 2.." ' .-...-..- ." :a,:.-- :REQUIREMENT. zNMnTE I certify under penalty of law that this document and all attachments; were prepared under my TELEPHONE DATEPRINCIPAL EXECUT E OFFICER directi or supervision , i accordance with a system designed to assure that qualified Personnel.property gather and evaluate the information submiftted. Based ot mry inquiry of the person orLawrence M. Coyle persons who manage the system, or those persons directly responsible for gathering the I;'-onn IZ ~ 08 04 25the infornmation submitted is, to the best o1 my Wnowledge and beitel. true, accurate. and met. I' N URI F PRINCIPLE IPlant Manager jam aware that there are significant penalties for submitting false information, inchudng the Iibility CUTIV OFFICER OR AREA N MBER YEAR MONTH DAYTYPED oR PRNE it fine and imprisonment for owxing violations. ANHU GN ~ ____________MEASUREMENTNT OODCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF71 0NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co.. LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 BDISCHARGE NUMBEROCR0501MAJOR(SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT*. "NO DISCHARGE-",IMONITORING PERIODI YEAR I MONTH I DAY I I YEAR I MONTH I DAYI I I II I -I -"" IFrom: I 08 I 03 1 01 I To:I O8 1 03 1 31 INOTE: Read instructions fore completina this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARAMETER_ ______ _________O_______SAMPLEPARAMETER AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX F TYPE________ _________ UNITS_______ ______ _____ ANALYSISBOO, 5-DAY SAMPLE 0(20 DEG. C) MEASUREMENT 073 139 26) 6.8 8.8 (19) 0 240 DC00310 1 0 0 P:-.ERMIT2' i95-s --30o' ..~~ , BA- MG/L -WEEGX:- .,.-*.inc4a,ý-EUI-INT-. .1D LB/D ý.7. -.- LAIL0MA9.rýr-EFFLUENT GROSS VALUE , A (:L -_ _% zPH M EASUREM ENT .---- ----. .7.14 ....... 7.88 ( 12) 0 240 G RSUSPNDEDMEASUREMENT00400 1 0 0 6. P9ERM -.-.60-` --.--EFFLUENT GROSS VALUE ~ROIEET-~- = 4NltMM ______ A(MUSUEEL iSOLIDS, TOTAL SAMPLESUSPENDED MEASUREMENT 0.52 0.95 (26) 4.9 6.0 (19) 0 240 DC00530 1 0 0 --- -PRMT 195ý MGI "WEEKLY. 600M2-,EFFLUENT GROSS VALUE ~REOU REMN 30DY AVG DAL -- -0DYVGIDAYMA M/IWEY CMPi.FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0012 0026 03) 0 135 ON50050 1 0 0 DAILY, PEM IT " :" .... " RE-.RT..EFFLUENT GROSS VALUE REQ '-30DAY'AVG.DAIL MGD .: D Y CSAMPLEMEASUREMENT_~ -'": I I ...... .... .....".. ............. -' .---PERMIT4",.REQUIREMENT, :'.- -".,- .-. ...:... .. .._____ _,.__._SAMPLEMEASUREMENTSAMPLEMEASUREMENT~PERMIT'-"___________ RQ IE E ' -... ...'..% ~. -' ";"-':. -.-______ .-..__ ___"__-. _""__"_::.NAMEIMTLE I certify under penalty of law that this document and al attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervision in accordance with a system designed to assure that qualified personnelproperty gather and evaluate the information Based on my inquiry of the person or 8 7Lawrence M. Coyle persons who manage the system, or those persons directly responsible for gathering the o 815 417-2000 25Plant Manager am aware that there are significant penalties for submitting lalse information, inctling theposs ýC E OFFICER OR AREA NUMBER YEAR MONTHTPED OR PRrED o fine and imprisomnent for knowig violations. TH IZED AGENT CODE NUMBER YEAR MONTDACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF 1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407I IL0048321I PERMIT NUMBER001 CDISCHARGE NUMBERMONITORING PERIODYEAR I MONTH I DAY I YEAR F MONTH DAYOCRO501MAJOR(SUBR 02)F -FINALRADWASTE TREATMENT SYSTEMEFFLUENT.NO DISCHARGEFrom:[ o8 0 83 101 ITo: 1 08 0 03 131NOTE: Read instructions efore cornletin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OFAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS TYPESOLIDS, TOTAL SAMPLE........ TO A(AP E ---26) -----< 2.5 4.3 (19) 0 240 CPSUSPENDED MEASUREMENT00530 1 0 0 .-'PeRwtv1T ~~~- ~.2:z ,. I.---- L..D ..;~ 0 : -:;. .7 1 MG/L >~~EKY bMOEFFLUENT GROSS VALUE iREQUIREM-,EN' '" -.. __ -:-P ,-,A " -.. ' A .': DALYA G --... .-OIL AND GREASE SAMPLE(SOXHLET EXTR.) TOT MEASUREMENT00550 1 0 0 i'l'P,.MIT " ..-. -LB-/DY.. " MG"- ...NCE/"EFFLUENT GROSS VALUE E..M.. ".30DA AVG DAI.Y , -'. .M "'. GR' BFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50060 1 0 0 7:PRIT~pREPOT ~REPOFrT -,..4........EFFLUENT GROSS VALUE , l"REIUIREMENTý 3L0A :A VGMOALYMAX" MGD : --.. " ' ..;' iN.. ........ ..... .. ... __-____._-_.:_-_'__ _.-"__:_.." __.____ f ,-SAMPLEMEASUREMENTSAMPLEMEASUREMENT _____... .. .. .:-a... r"1J.n........... -,.- ....,.. ----.,. -._,", -: ...-f'"': .l:Yin'.: :ar-r ." ..**....SAMPLEMEASUREMENT________ REQUIREMENT. 7.Z~.____ ____ ___SAMPLEMEASUREMENTNAMEMfTLE Icertif under penalty of law that this; document and all attachments were prepared under my TLPOEDATEPRINCIPAL EXEC~tMVE OFIFICEtI direction or supervaiso in accotdance with a system designed to assure that qualified personnel ____property gather end evaluate fth information submiritted. Based on myr srqtary of the person orLawrence M. Coyte persons who manage the system, or those persons directly responsible for gathering the Into- .0 04 2the bInformation subrrfed is, to the best of my knowledge and betlel, true. accurate, and e. NATUR F RINCIPLEPlant Manager am aware that there are significant penalties for subrrsttaig false Information. including tfhe EXEC E 0 CER OR AREANUBRYA MOTTypw~ ~ ORP~f ffine and imprisonmeerti for leiowtng violations. = IEAET IOE UBRYA OT ACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev W/99) DR PAGE 1lOFi1 0NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84IL0048321PERMIT NUMBER001 oDISCHARGE NUMBEROCR0501MAJOR(SUBR 02)F- FINALDEMINERAUZER REGENERANT WSTSEFFLUENT... NO DISCHARGEI MONITORING PERIODI YEAR I MONTH I DAY I I YEAR I MONTHI DAYI I I lI I I IFrom: l 08 0 03 1 01 I To: I 08 I 03 I 31 ]Braceville, IL 60407NOTE: Read instructions before completin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOUDS, TOTAL SAMPLESULIDSP MOTSUREME (26) ..< 1.03 1.6 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 t7'PERMIT .' Y 00" ... .....EFFLUENT GROSS VALUE "'A-*I ilw MG-L -..... WEEKLY. FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0020 0.041 03) --- ------ 0 135 CN50050 1 0 0 C~PR~ _RPRT ..-REPORT.- `--~-- ' -C~f1EFFLUENT GROSS VALUE AREQUIREMIENT%.-: 30DAYAVG DA,' MGD"- .K. -"T z;SAMPLEMEASUREMENT_____________REQUIREMENT_______ ___ ____________SAMPLEMEASUREMENT____________________________________________ RQIREMENT ~-*SAMPLEMEASUREMENT.-,,;-...-___-._____ .-IEO'. .E. .-'.-_:__ ._ -V__._"-_. .._.-_-- .... ......_ ..___..._- .; .;:: --;.. -i .... .-. .....SAMPLEMEASUREMENT__ _ _ _ _ _ _;:EUR M N ___-- __-___ __.. __ _ .___ -___., _._____-' ::___: ____-,_... .-.__ ..... ..,_SAMPLEMEASUREMENT-__ __ _ __ _ __ _ 'E~iEM N ~--,~- -3/4 ,~* *. -,, ....MESUEMENTNAAEMlE I certify under penalty of law that this document and all attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervisionin accordance with a system designed to assure that qualiied personnel 2000_ _ _ _property gather and evaluate the information Based on my Inqudry of the person or 815 417-2000Lawrence M. Coyle persons who manage the system, or those persons directly respeonsile for gathering the 0 PRINCIPLE 1002te information subrrled Is, to the best of my Mowfedge and betr , true, accurate, and complete. -_ .. ...,A____.....Plant Manager am aware ta there are significant penalties for submitting false Information, including the possiblity EXEC IVE ?FFICER OR AREA NUMBER YAR MONTHTYPEDOR PRlrflt I of fine and unpflonfent for knowrng violations. A rHORID AGENT CODEA1HRPAGNT COD____ __R______ ___DCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF 1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMIT'EE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407IL0048321II001 0I PERMIT NUMBERDISCHARGE NUMBERI IIMONITORING PERIODYEAR MONTHI DAY YEAR MONTH DAYMAJOR(SUBR 02)F -FINALCOOUNG POND BLOWDOWN UNEEFFLUENT"
- NO OISCHARGE F-- ...From: I 08 I 031 01 1 To:I1 08 1 03 1 3i1IIIIt i I INUOI : Read nstructions feore COMoletin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPAR AMET R OF TSAM PLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS OF TYPEAVERAGEANALYSISTEMPERATURE, WATER SAMPLE........................ 63 (15) 0 135 CNDEG. FAHRENHEIT MEASUREMENT00011 1 0 0 RMT, -.--.EFFLUENT GROSS VALUE o .... ..0....SAMPLEPH MEASUREMENT ..... 8.02 ..... 891 (12) 0 240 GR004 0 1 0 .-.. : ' :- ; ., ~:--.-."6.O0 .... '" ; -.=;- ... -"90-.0 ' i Y ;!i : ,r,_; 00400 1 0 0 'IERW__zý: ____yEFFLUENT GROSS VALUE 'REQUIREMEN " ... ". .:MINIMUM.- MIM..- .U .--." WEMKLYMv. GRAB.OXIDANTS, TOTAL SAMPLERESIDUAL MEASUREMENT34044 1 0 1 '--PE MIT, -__ __-REG LBS/Y :DAIL' OCEEFFLUENT GROSS VALUE -REQUIREMENT- .=_"_ _"."_ _.__ DAILY MA. MG/I MONT." .FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 .---PE I r-: REP R .EPORTP!-- MGD .A.L.------. -. .,. ..I.- D .. ....EFFLUENT GROSS VALUE 'T.3 DA'Y'V AVG- DAILY ,AX -' ---. _. ___CHLORINE, TOTAL SAMPLERESIDUAL MEASUREMENT50060 1 0 0 :PIEPRMIT 2BS/DY 02-t'EFFLUENT GROSS VALUE "IE .' " -" --'- _____'-_ -__"__ "_ DAILYMAX'" MG/L -.: ,-. 7-RSAMPLE ... 1 1) 0 15MCHLORINATION DURATION MEASUREMENT 110 (14) 0 135 MS78739 1 0 0 %,'PERMIT 5--' 7 REPORT M"_ SEEEFFLUENT GROSS VALUE -R!QUIEME_ 7. YMA _PCHLORINE USAGE SAMPLE 1467 1542 (26) .. (19) 0 135 MSMEASUREMENT81400 1 0 0 --t ,PERMF O"-'REPORT ATREPORT, ..-- ` `...<;P..M "- -: S ---,...EFFLUENT GROSS VALUE ! ln DAILYAX: , S/DY _ -_._.:ý.;. MGI..- ..... SE ...NAMETITLE I certify under penalty of law that this document and all attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECULMVE OFFICER direction or supervision in accordance with a system designed to assure that qualified personnel TLPOEDEproperty gather anid evaluate the information suwtltted Based on my inqusy of the personor I 815 417-200T0Lawrence M. Coyle persons who manage the system, or those persons directly responsible for gathering the inaormation* S 8R15t- PRINCPLE 04 25the information submitted is. to the best of my owledge and besef, true. accurate. and complete. I S. ATUR PRINCLE25Plant Manager am aware that there are significant penalties for subnittng false information, inckding the poesibty EXECUT fE 0 ICER OR AREA NMBJ DI.,- iPr of fine and isonent for nmoing violations. AUTHRIZE AGENT ODE NUMBER YEAR MONTH DAYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF 1S 0 0 ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: March 27, 2008Time: 1:30 p.m.0.070.06C'D00.050.04!--0.03<0.02510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.March Bromine Usage: 236 lbs. Monthly Average277 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.02 mg/IBraidwood Nuclear St io I I i.Exelkn,Exelon Generation Company, LLCBraidwood Station35100 South Route 53. Suite 84Braceville, IL 60407-9619www.exeloncorp.comNuclearCERTIFIED MAILMay 23, 2008BWO80051Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the April 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Joe Tidmore at (815) 417-2299.Respectfully,-L~wrence M, Coyle "Plant ManagerBraidwood Generating StationEnclosure NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville. IL 60407IL0048321PERMIT NUMBER001 ADISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT* *
- NO DISCHARGE EJI MONITORING PERIODYEAR MONTH I YEAR MONTH DAYFrom: I 08 1 04 1 01 1 To: I 08 I 04 I301NOTE: Read instrutions fore comoletino this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF TPAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS Ex ANALYSISOSOUDS, TOTAL SAMPLE ......... (26) 5.0 7.4 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 Z- °E " A .:.. i:- G.--..LBS/DY ""EFFLUENT GROSS VALUE ý EOIREQu IE T- .' ' -: -.. :. ...;- ... DAI'... M-AX -...OIL AND GREASE SAMPLE ------- (26) 4.8 4.8 19) 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENT00550 1 0 0 -tt --'-7÷i ? ---....... .... .... ..EFFLUENT GROSS VALUE EREOUIREMN- -.I- .......ML .iDAIýY W.X--ý-___ __, __,,__ __..__ __, _ _ ___._ _ __, *N~ __FLOW, IN CONDUIT OR SAMPLE 0.059 0.083 03) 0 240 TMTHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 nEPRT -` REP.ORTaL-zW MG __ jfý 24- RmEFFLUENT GROSS VALUE JRQIt)EI ~0IA.'I DAIL M-rý .AL ASAMPLEMEASUREMENT_.... ..... ....... ...... .*-.=., .... .^_..-. .,..= ...SAMPLEMEASUREMENTSAMPLEMEASUREMENT___________ QUIREMENýT ____ f___ 25____ _____ __SAMPLEMEASUREMENTNAA/TITLE I certify under penalty of taw that this document and all attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFRCER direction or supervision In accordance with a system designed to assure that qualified personnel _ __ _ __property gather and evaluate the infonnation submitted. Based on my inquiry of the person or 4 -815 417-2000Lawrence M. Coyle persons who manage the system, or those persons directly resporsbl for gathering m-i l -RE- 08 05 23the information submitted is, to the best of my knowledge and belief, true, accurate, and cFplet. I EPIN IPLPlant Manager e aware wat the aresignificant penalties fr subm fting false informatj~'~iodn gt.=epýýss i~ty / EX O TrVE OFFICER OR AREA N UMB ER Y AMO TD YIYPo OR R of tine and imprisonment for knowing violations. /(VrHORIZED AGENT CODE R Y MONTH DAYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF 1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITrEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 BDISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT* *
- NO DISCHARGE EJ ...MONITORING PERIODYEAR MONTHI DAY I YEAR MONTH DAYFrom:I 08 1 0401 ITo:. 08 1 04 I 30q i I J* ,A ....NUO TE: uead instructions fore completino this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER -OF TYMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX AL TYPE>< ANALYSISBOD, 5-DAY SAMPLE(20 DG. MAME 5.23 12.36 (26) ....... 20.6 39 (19) 0 240 DC(20 DEG. C) MEASUREMENT00310 1 0 0oSI-A/L ..EFFLUENT GROSS VALUE "REQI, k 3ODAYAVGI 'DAIL- X __S_ 3 DAY'AVG " --Y --SAMPLEPH MEASUREMENT ..... 759 8.03 (12) 0 240 GR00400 1 0 0 ..PRUITER r-T ----i- "'--' "U °Y -:A-EFFLUENT GROSS VALUE R EQ ,IIREMENTj ..-- -'- ___IMINMUM -zi .- *-. MAXIMU --.- ___--SOLIDS, TOTAL SAMPLESUSENOEDLMEAME 3.32 6.81 (26) --.......13.5 21.5 (19) 0 240 DCSUSPENDED -MEASUREMENT00530 1 0 0 -PERMf-, ,49.5- -390:-, -. .;300 .60O"--IEFFLUENT GROSS VALUE ARDEQu'flRE ' 30 .YAVG -h.AIYi.- LBS/DY .....FLOW. IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 ' R " .. REPORT. -' REPORT M--.D _-. '" ' -.EFFLUENT GROSS VALUE fRE RMiEN¶. 30 ,DA,.AVG --IL. MAXK _",.;_.__ .-o ----SAMPLEMEASUREMENT" ' " .... ......-.. ..-.-......-.-. .,. ........."-'r_-R__ _ REQUIREMENT' i. --" .. ., ,,A, *..:- ...-,.:SAMPLEMEASUREMENT ....... n,REQ E ---..--. -"- .- ' .-..SAMPLEMEASUREMENT_NAMEFITLE I certify under penalty of law that thits document and all attactmnents were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervision in accordance with a system designed to assure tlat quarrtied personnelproperly gather and evaluate the information submitted. Based on my Inquiry of the person OrLawrence M. Coyle persons who manage the system, or those persons directly responsitile lot gathering the int fI7 08 05 23the Intormation sutintitted is, to the best of my Ivnowledge and beliel, true, accurate, and con e. I1 510KT 0 PRN ILPlant Manager am aware that there are significant penalties for submitting false inffornation. including thre ibifdy I NUMBER YEAR MONTH DAY*YPM O PiNTM of fine and impnsonment for knowing violations. 4 AGENT YEAR MONTHDATYEDowp..soA D GE T CODE _ _ _ __ _ __ _ _ _ _ _ _COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF I PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0048321 001 CPERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODYEAR MONTH DAY I YEAR MONTH DAYIFrom:I 8 I 04 1 01 1 To: I 0 I 04 30 IaOCRO501MAJOR(SUBR 02)F- FINALRADWASTE TREATMENT SYSTEMEFFLUENT... NO DISCHARGE [- *flTIF Re.ad instnrutionsabfr ~m~tn thhi frmii!QUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS, TOTAL SAMPLESUSPENDED MEASUREMENT00530 1 0 0 -EB -: .L- ýz/~ tltjA1 .'* "- MG/L ~ :.EFFLUENT GROSS VALUE -UEQURENT..""-*:*"'."' ____-_ .'----" AX.._____ , .-,,'_..OIL AND GREASE SAMPLE(SOXHLET EXTR.) TOT MEASUREMENT .....-. (26) ...... 1.06 106 (19) 0 285 GR00550 1 0 0 _ '""- -" LBS/DY ...---""'..0NC---0.LWDY ~MG/L LEFFLUENT GROSS VALUE .REQUIREMENT-. 3AIFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 'RE T- ' -.': L: -'- ..'1EFFLUENT GROSS VALUE .:REQUIEE- .A.A" " MGD .,.....SAMPLEMEASUREMENT_-.PER IT'..-- -- .... .M-EUIRE-MENT- ZVý. K-# L ~ i-: ~ i .__ ______SAMPLE-MEASUREMENT_____ ___________ _______________.... .., .. ..-., SAMPLEMEASUREMENT_________ ___,__, QU.REMENT -.- j 2-.,2 .-'., -'--- : .. -,, .-' -,.__ _ '. ..,-....SAMPLEMEASUREMENT______________~MEASUIREMENT z-~~'~ ~-~ .tt.: ' ... ....NA/TITLE I certify under penalty of law that this document and all attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervision in accordance with a system designed to assure that quatited personnel *,..... ,propedy gather and evaluate the Information submitted. Based on my inmtuy of the person or "815 417-T0DLawrence M. Cayle esons who manage the system, or those persons directly responsibte for gathering the 0 , ..t 05 23the information subritted is. to the best of my Imowledge and befet true. accurate. and complete I E P LPlant Manager am aware that there ae signofcant penalties tor submitting false iformation, inctudg the EXE IVE FICER OR AREA NUMBER YEAR MONTHofPO R P'RImEO I tine and imprisonment for knowing violations. AU RI MONTT DAY__________OR_________________ A~O ID DAGENT CODE___ ____I___COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF 1I
- 0 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDESDISCHARGE MONITORING REPORT (DMR)PERMrrIEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceviltle, IL 60407IL0048321PERMIT NUMBER001 DDISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F- FINALDEMINERAUZER REGENERANT WSTSEFFLUENT* *
- NO DISCHARGEI MONITORING PERIODYEARI MONTH DAY YEAR MONTH DAYFrom:l 08 I 04 I01 I To:I 08 I 04 1 30NOTE: Read instructions tefore completin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF .AMOFAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS, TOTAL SAMPLE 2) -- 0.6 <1 19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 -7PIERMIT., %.-. ML EY"'87 1_13SIDY Zý. MG& Y."_" :,COMP.8EFFLUENT GROSS VALUE .. REQUIREMENT- ' -.. -LBS/DY ---i -- .'- " YFLOW, IN CONDUIT OR SAMPLE 0.021 0.036 03) 0 135 CNTHRU TREATMENT PLANT MEASUREMENT 0021 00-6 (0)"--- " 0 35C50050 1 0 0 ,-PERMr--::REPORT-I 'GREPORT, ..- -D -.EFFLUENT GROSS VALUE tREQUIREM -_ODADV MGD ...,, :D*... ..... .....SAMPLEMEASUREMENT_-_.:_.____,___-_______- ,-RE U-ME t: ~ -- ..... , .. , "- ... ..~ .. -'. i...- SAMPLEMEASUREMENT._. .. .-_. ..... ... ..R.QUIREMENT. .. 4,SAMPLEMEASUREMENT-BQ 4EIRr i- --. *SAMPLEMEASUREMENT_______________ REQUIRMNT9 ___SAMPLEMEASUREMENTW =NAME..'TLIE I certify under penalty of law that tis document and an attachments were prepared under my TELEPHONE DATEPRINCIPAL EX]ECL1VE OFFICER direction or supervision in accordance a system designed to assure that qualified personnel Ole _ _ _properly gather and evaluate the information submitted. Based on my inquiry of the person orLawrence M. Coyle persons who manage the system, or those persons directly responsible for gathering therifont, S U F P7 08 05 23the Information submitted is, to the best of my knowledge and belief. true, accurate, and complete.Plant Manager am aware that them are significant penalties for submitting false Information. including the pass i rEC IIVEO FER OR AREA NUMBER YEAR MONTH DAYTYwED OR PRNTM of fine and imprisonment for k v "tn V AUT AGENT COD NUMBER YEA _MNTH DACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF 1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407I IL0048321I 0I DISCHARGE NUMBERPERMIT NUMBERI MONITORING PERIODI YEAR IMONTHI DAY I I YEAR I MONTHI DAYMAJOR(SUBR 02)F -FINALCOOLING POND BLOWDOWN UNEEFFLUENT... NO DISCHARGE "1 "l I I If I I IFrom: 1 08I 9 4 1 1 To: 1 08 I 0430____ ___ Um II: teaa irlunJ tOatefore competin llS tormQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPETEMPERATURE. WATER SAMPLE 76 1 15) 0 135 CNDEG. FAHRENHEIT MEASUREMENT00011 1 0 0 I". L 4.EP._T.:..EFFLUENT GROSS VALUE -EOUI .EMENT:, -W ..t.+_ ._- _ , t. -.DEG. F L.._ :. kr4,, -PH SAMPLE ---.-... ..... ... 8.7 8.97 (12) 0 240 GRMEASUREMENT00400 1 0 0 ..2A.I-.i 1L-_' " ..-- --.-0 ' ....9 ..EFFLUENT GROSS VALUE REOIAEMQUEI N .'..:.--... -- --,MNIMUM-_ .SU.-. ;.U -.- ' ,-R.B,.....__ _ __ _ __ _ .. ... .. _, = _._.. _ -...., ..... ,,,. _ _ 4. .'. .. ,___-_,- _OXIDANTS, TOTAL SAMPLERESIDUAL MEASUREMENT (26) .------ < 0.03 (19) 0 285 GR34044 1 0 1 :-B/-P.EYMIT --' 005 MG/I .-.. ...:-.EFFLUENT GROSS VALUE '-REQUO"IR. , WZ6- '.- -._._- _ -' -'. " .-.X..-'. ___,___FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 21.43 34.64 03) 0_135___50050 1 00 .-PEAM..=-I .REPORT. : RPORT .- .".--o..-,-n--,-.r-.:. ...EFFLUENT GROSS VALUE G ZEIREMEN.'. L-0.-"YAV.: -:AILY .-X MGD .... ...... __y_..-_ -CHLORINE, TOTAL SAMPLE (26) N/A(1) 19) 500 OTRESIDUAL MEASUREMENT50060 1 0 0 PEW4 LB/Y ---- MGI ., GR.,EFFLUENT GROSS VALUE ;R'EOU REENT --. _'. _.. -. __.___ ..' .'D .X-. ............ -; .CHLORINATION DURATION SAMPLE --------.... 110 ( 14) 0 135 MSMEASUREMENT78739 1 0 0 -.7*ý v "RPR SEE,~EFFLUENT GROSS VALUE D.,-,IRE,-N- __ _ _ _ _ _ _ _CHLORINE USAGE SAMPLE 1382 2064 ( 26) ........... (19) 0 135 MSMEASUREMENT81400 1 0 0 .R.PER 3r-' -.....Y .R---: -" -..+ -EE. .EFFLUENT GROSS VALUE s'REUREMENT " MO AVG'-.--,A.D._AIY. __'____ ., : .. " ..* M/ W...,9 .,-NAMEITrLE I certify under penalty of law thal thi document and all attachmnwts were prepared Under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direclion or supervision in accordance with a system designed to assure that qualified personnelproperty gather and evaluate the information submitted. Based on my inquiry of the person or I TLawrence M. Coyle persons who manage the system. or those persons directly responsile for gathering the Indf--m 815 417-20C0 Ithe Information submitted Is. to the best of my knowledge and belief, true, accurate, and cor pet I OF___,_ R___ _0_12Plant Manager am aware that there are signiffcan penalties for submitting false iformation. Inctrng the possl EC VE OF ICER OR AREAlNUMBEATYPD pRINT-D o fine and imprisonment for knowing violations. L- NUMBER YEAR MONTH DAYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF 1 ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date:Time:April 17, 20085:05 p.m.0.080.0700.06'a 0.05I-0.04<0.03510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.April Bromine Usage: 252 lbs. Monthly Average353 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/I\A. Coyle, -P]/t4 VanagerNuclear StV EýqhýnoFxelon Ceiicrat ion Companry. LICtbraidwood Station351('-o Sotith Route 53, Suite 34Braceville, IL 60407-9619www.exeloncorpxcomNuclearCERTIFIED MAILJune 26, 2008BW080066Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the May 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Joe Tidmore at (815) 417-2299.Respectfully,-Plant ManagerBraidwood GeneratingEnclosure NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMIITEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407ILD048321PERMIT NUMBERS 001 AI DISCHARGE NUMBERMONITORING PERIODYEAR MONTH I DAY I I YEAR MONTH I DAYMAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT." *" NO DISCHARGEFrom: I 08I 051 01 I To:I 08 I 05 1 31l lI INOTE: Read instructions felore comoletin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO FREQUENCY SAMPLEPARAMETER ______N. OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOUDS, TOTAL SAMPLE DCSUSPENDED MEASUREMENT(00530 1 0 0 PERMIT :"- LBS/DY 30.0MG/L WEE1I.Y 00MP24EFFLUENT GROSS VALUE REQUIREMENT " ... ..-.- ' -"30 DAY AVG -DAILY MAX ,,_ _....OIL AND GREASE SAMPLE(SOXHLET EXTR.) TOT MEASUREMENT00550 1 0 0 PEI..- : -15.0 .20.0 ONCE/005 100PEMT-*: ". .. 'tBS/DY MG:/.L.. .":.= GRABEFFLUENT GROSS VALUE REQUIREMENT- .LBSY --30"DAY.AVG" DAIL MAX MG/LMONTHFLOW. IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT60050 1 0 0 PERMIT RELPORT REORT___ 24 MREFFLUENT GROSS VALUE REQUIREMENT :30 DAY:AVG -DAILY MAX :MMGD -DAILY TOTALSAMPLEMEASUREMENTPERMIT..'...".REQUIREMENT ..--."SAMPLEMEASUREMENTPERMIT.-. --REQUIREMENrSAMPLEMEASUREMENT ._. _PERMIT " .. .' :"!REQUIREMENT -. .. ._"--___ ... .", _._ .- .. ' -SAMPLEMEASUREMENTPERMIT -.-.REQUIREMENT- .r. .. --:NAMEMTITLE I certify under penalty of law that this dmocument ant at attachments were prepared under MY TELEPHONE DATEPRINCIPAL EX]ECUTIVE OFFICER drmction or supervision i accordance with a system designed to assure th qualified personnel _ ______ __ _ _property gather and evaluate the itonnattion submitted. Based an my inquiry of the person o 815 417-2000Lawrence M. Coyle persons who manage the system. or those persons directly responsible for gathering ft .---"' 08 06 26the information submitted i, to the best ot my knowtedge and bellef, ttue. accurate, and cotplete. I G AfURE)OF PRINCIPLE IPlant Manager am aware trat there are signifcant penatties for subm" false information. inctuding the possif" F-XtCUT OFFICER OR A NB ETMaae ot fine and imprisonment: for liown violations,. ..........R ARE NUMBER YEAR MONTH DAY"WaoED PRi, ,R1 a..0-u A ORIZED AGENT 1COD .COMMENTS'AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF1 0NATIONAL POLLUTANT DISCHARGE EUMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMrTrEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 BDISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT... NODISCHARGE EJ'IMONITORING PERIODYEAR MONTH I DAY I YEAR MONTH DAYFrom: 1 08 I 051 01 1 To:1 08 I 06 I31 Il l l lI I I I-__ _ _NOTE: Read instructions fore comolelina this formPARAMETER QUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS A Y TYPE> < UNITSANALYSISBOD, 5-DAY SAMPLE(2D. MEASUEE 2.06 5.14 (26) -13.6 22 (19) 0 240 DC(20 DEG. C) MEASUREMENT00310 1 0 0 .PERMIT -"."- 39.0 ..30.0 60.0030100PRI195 DIYMX LBS( .T3DAAV MG/I. WEEKLY. COMP24EFFLUENT GROSS VALUE REQUIREMENT .30 DAY AVG .X L .30 Av. "AILY. MAX M-PH MEASUREMENT ..... 7.73 ..7.92 (12) 0 240 GR00400o 1 , 0 PERMIT .8. 9.0 WEEKLY.GRABEFFLUENT GROSS VALUE REQUIREMENT .- -':. .--_ "' MINIMM .. MAXIMUM SU WELY'., .GRASSOUDS, TOTAL SAMPLESUSPENDTDLMEAME 2.06 4.39 (26) 15.4 19.6 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 .PERMIT 19.5 -390 -LBSDY ' -30.0 -60.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG. -WDA .MAX. ..30.DAY.AVG DAILY MAX MGL *COMP24.'FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0021 0.039 03) ----- --0 135 CN50050 1 0 0 -PERMIT REPOT REORT MGD REPO.R--T--" DAIL Co,,rNEFFLUENT GROSS VALUE REQUIREMENT.. 30 DAY AVG: "DAILY MAX .GD. D "...._SAMPLEMEASUREMENTPERMIT :'-_ REQUIREMENT --. " --.. ..SAMPLEMEASUREMENTPERMIT-REQUIREMENT .-'. ... .".'., -.._-.. .:.. .. ..SAMPLEMEASUREMENTPERMIT ' ....-:" -_ __ REQUIREMENT. -_ A _NAM(PTLE I certf under penally of law that thits document and aln attachments were prepared tunder my [TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direcron or superveiin accordance wit a system desq*e to assure that qualifiedpeo e /pe _propetty gather and evaluate the information suOrnmed. Based an my intuiry of the person or815 417-2000 11rLawrence M. Coyle persons who manage thte system. or those persons dirctly for gathring the if , ,,,,^",, " -= ,,,',, ... .. 08 06 26the information submrtted is, to the best of my fknowledge and belef, true, accurate, and complete. I -tIGNATI, E F PRINCIPLE..Plant Manager am aware that there are significant penalties for submitting false information, including the possibity EXEC IVE FFICER OR AREA NUMBER YEAR MONTH DAYrE OR PR1VNT1D of fne and impsonment for know ingED AGENT CO YEAR MONTH DAYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMfTTEE NAME/ADDRESSNAME Exelon Generation Co.. LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84IL0048321PERMIT NUMBERF -001 CI DISCHARGE NUMBEROCR0501MAJOR(SUBR 02)F -FIALRADWASTE TREATMENT SYSTEMEFFLUENT... NO DISCHARGE ..*IMONITORING PERIODI YEAR I MONTH DAY I YEAR IMONTH I DAYFrom:I 08 1 05 1 01 ". I To: I 08 I 05 131 IBraceville, IL 60407NOTE: Read instructions before cornoletin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS PESOLIDS. TOTAL SAMPLE ------- 156 3.0 (19) 0 240(1) CPSUSPENDED MEASUREMENT .000530 1 00 PERMIT. -15.0 --30.0EFFLUENT GROSS VALUE REQUIREMENT -LBS/D,--0 .DAY AVG DAILY MAX .MLWEEKLY " OPOSOIL AND GREASE SAMPLE(SOXHLET EXTR.) TOT MEASUREMENT 26) <1 (19) 0 285 GR15. .- .~2. .O.NC..E.00550 1 0 0 -PERMIT .LBS/Y 15.0 DYAG DIYMX M/ OTEFFLUENT GROSS VALUE REQUIREMENT 20. _____________FLOW, IN CONDUIT OR SAMPLE iTHRU TREATMENT PLANT MEASUREMENT 0.009 0.009 03) ----- -- 0 CN50050 1 0 0 PERMIT R-EPORT
- E_: --. ... DA.... 'N..MGD-MA ' -.." ' "- DAILY *I 'C NIEFFLUENT GROSS VALUE RDAyAVG ALAMEASUREMENTPERMIT--_ _ _ _ _ _ _ _ _ REQUIREMENT .: ,-: -,'"-. :,.'.t: ." I .. .-.__-_.-'.--_... -SAMPLEMEASUREMENT_PERM]T--- -REQUIREMENT _ _ _-SAMPLEMEASUREMENT______________________-PERMITREQUIREMENT. r j_ ___SAMPLEMEASUREMENTPERMITREQUIREMENT :.. --..... .. ...NASAMPLENAME/IiTLE I cerity uindsi penaay of law that mU document and au atachmvnts ware prepared wder myPRINCIPAL EXECUdIVE OFFICER ection or supeisi in accordance with a system designed to assure that quified TELEPHONE DATEL copeuty gatfr and evaluatethe infornnaton submitted eased a nmyW oqLiry a the peson or ILawrence M. Coyl persons who manage the system, or those persons directly responsible for gathering the min8ton N17"2060the ierormatron submitted is. to the best at my and ballet, tu. accurate. and cownp;te. I ""-- NATU t- 0 PRINCIPLE r_ 0I 26Plant Manager am aware that there are significam penaltis for subinstlng false mnomnaion. maidog the possb" EXECU IVE/FFICER OR AREANUBRYA OT DAYTyEO OR PtNED of fine and inronpMment for knowNg violations. AUTHRfIZED AGENT CODENUMBER YEAR MONTH DAYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Samples are taken weekly when discharging. No discharge week of 5/26/08.EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OFI NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 DDISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F- FINALDEMINERALIZER REGENERANT WSTSEFFLUENT"... NODISCHARGE ]MONITORING PERIODYEAR MONTH DAY I IYEAR MONTH DAYFrom: 08 05 01 TjTo: 1 08 05 31 1NOTE: Read instrctin fore compietin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION No.FREQUENCY SAMPLEPARAMETER OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSISSOLIDS, TOTAL SAMPLE.... (26) <0.c.7 < 1 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1.0.0 PERMIT.. "..15.0 -30.0-01050 10 0PERIT. I :, .-. :-i:" ;, --. "77.. 30 DAY AVG "DAILY MAX- MG/LWEKY CM-EFFLUENT GROSS VALUE -REQUIREMENT .---.. DA XE CO:-.FLOW. IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT: RE.RT MGD -...... -" DAILY R EPORTNEFFLUENT GROSS VALUE REQUIREMENT .30.DAY AVG. DAILY MAX. -SAMPLEMEASUREMENTPERMITREQUIREMENT';:SAMPLEMEASUREMENT_____ __________ _____PERMIT.REQUIREMENT L'_________ _____ _____ ____SAMPLEMEASUREMENTPERMIT_.__-i.__-__ _ REQUIREMENT -.:" " 'SAMPLEMEASUREMENT _____ _____ _____ _____ _______.-REQUIREMENT ....._:-. _.._. -_-_"_. ...___ '.'"SAMPLEMEASUREMENTMREQUIREMENT FNAMEfTfLIE I 'sty un~der Penalty o law that this documtenft and atSlSfl atftahets were prepared trledr my TELEPHONE DATEPRINCIPAL EXECULiVE OFFICER &lrectiort or supervision ii accordance with a system designed to u-saws tha qualified personnel________Lawene 4. property gather and evaluate the information suLbrtlted. Based an my inclif of the person or 815 417-200 0 2the inormIation submitted a. to the best of my --owtedge and beief true, accurate, and co.t"pte.NATU CP _ I I., -.. .Plant Manager amaware that there are significant penaltiesa tor submitting flase information, inckxdin the possbilty EXC UlIVE 0 CER OR AREANMBRYA MOTDYlot tine amd ittprmornmrt f0 io'rurng viciatureNUBRYER MNT AiWED OR PRfINTE A ý RIZ AGENT 1CODE ___ _________COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3199) DR PAGElIOF 1 PERMITIEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)11004,321 001 0PERMIT NUMBER DISCHARGE NUMBER[ MONITORING PERIODFr AR I08 DAY I YE MONTH DAYFrom: IO8 O I 01 To: I 08 I 05 I 31OCRO501MAJOR(SuBR 02)F -FINALCOOLING POND SLOWDOWN MNEEFFLUENT* **NO DISCHARGE = ...NOTE: Read instructions fore comptetin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARAMETER OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ALYSIS TYETEMPERATURE, WATER SAMPLE -- ---- -79 (15) 0 135 CNDEG. FAHRENHEIT MEASUREMENT 79_(_15) 0__35_CN00011 1 0 0 PERMIT _' _R .." "- -- DALY CONlINEFFLUENT GROSS VALUE REQUIREMENT.' : -..:-.: ..-DALYMAX DEG.PH SAMPLE ------- 8.64 8.89 (12) 0 240 GRMEASUREMENT00400 1 0 0 PEMT6 ..*.9.0EFFLUENT GROSS VALUE .REQUIREMENT _. -M U.MAxiMUM SUW.E..L, GRA.OXIDANTS, TOTAL SAMPLERESIDUAL MEASUREMENT34044 1 0 1 .PERMIT .. .. LB.-.- 0.05 ONCE/ GRABEFFLUENT GROSS VALUE .,REQUIREMENT .-._.____.... LBS/DY .. :_"-.___.. DAILYMAX: MONT."FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT -150050 1 0 0 PERMIT .REPORT REPORT--LEFFLUENT GROSS VALUE ..REQUIREMENT 30 DAY AVG -DAILY MAX MGD D.AILY-.-": .' " " " ... "o-TCHLORINE. TOTAL SAMPLERESIDUAL MEASUREMENT50060 10 0 PERMIT 7 0ONE-LBSDY GRAB0EFFLUENT GROSS VALUE REQUIREMENT -- .DAILY.MAX.. MG/IL MONTH. GASAMPLECHOIAINDURATION -MEASREMEN ---------- 110 (14) 0 135 MSCHLORINATION MEASUREMENT :__:__""_"__-_ ____T__"___78739 1 0 0 PERMIT- .REPORT MNSSEE-.- .; .-- .-...........-I.NTES.EFFLUENT GROSS VALUE 'REQUIREM4EN[T .- ____ -__ _ DAILY MAREMIT -1 ___SAMPLECHLORINE USAGE SAMPLE 1911 2259 ( 26) ------ .. ...... (19) 0 135 MS81400 1 0 0 PERMrr REPORT. 2REPORT. SEEY Ml.EFFLUENT GROSS VALUE SREQUIEMENT -MOAVG -DAILYKM -PERMITNAMEMTIUh I certify under penalty of law thal Othi document and all attachments were prepared under my TLPOEDTPRINCIPAL EXECUTIVE OFFICER :liretinorSupervision in a ran with asystem designed to assurethimqualiied personnel .,. ;. D Tproperty gather and evaluate the information submitted. Based an my inm ry of the person orLawrence M. Coyle persons who manage the system, o those persons dctly responsde for gathering , ,theino.. 815 417-2000 06 26the information submitted is. to the best of my knowledge and belief, true. accurate. s coand e1' S.GNATUR OF PRINCIPLEPlant Manager am aware that there are signirfcam penalties tor submitting [alse inmfnation. VK hu EXECUTI OFFICER OR AREA NUMBER YEAR MONTH DAY7YPE OR PR,,n'M of fine and imprisonment for knowing violations. AVrO ED AGENT CODACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachmenl 1)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF I ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date:Time:May 30, 20081:31 p.m.0.080.07Cux00.06i, 0.050I-0.04<0.03510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.May Bromine Usage: 292 lbs. Monthly Average382 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/IBraMi N Coylear, S eiBraidwood Nuclear tage FIAttachment 2May 2008 Discharge Monitoring ReportSpecial Condition 7 of our permit imposes pumping restrictions at the RiverScreen House during a four week period (last three weeks of May and the first week ofJune) when pumping will be allowed only during daylight hours. Listed below are thedates and times the make-up pumps were operated during the May 2008 restrictedperiod.Date5/13/085/14/085/15/085/16/085/17/085/18/085/20/085/21/085/22/085/23/085/25/085/26/085/27/085/28/085/29/085/30/085131/08Start Time9:30 a.m.10:30 a.m.9:04 a.m.9:00 a.m.8:42 a.m.8:45 a.m.10:15 a.m.9:00 a.m.10:45 a.m.8:50 a.m.8:40 a.m.9:12 a.m.8:01 a.m.8:10 a.m.9:18 a.m.8:17 a.m.8:15 a.m.Stop Time5:50 p.m.5:48 p.m.5:26 p.m.5:45 p.m.5:25 p.m.5:45 p.m.5:54 p.m.5:20 p.m.5:15 p.m.5:02 p.m.5:30 p.m.5:43 p.m.5:30 p.m.5:30 p.m.5:50 p.m.5:30 p.m.5:20 p.m.# Pumps Operating12222222222222222Lag' nce M. CoylePlant Manager /Braidwood Generating Station0 Nuclear".%I, I .A, i 01 p ,rclb 107CERTIFIED MAILJuly 28, 2008BW080076Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the June 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Joe Tidmore at (815) 417-2299.'Lawrence M. CoylePlant Manager UBraidwood Generating StationEnclosure NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville. IL 60407IL0048321PERMIT NUMBER001 ADISCHARGE NUMBERIMONITORING PERIODI YEAR I MONTH I DAY I IYEARI MONTH I DAY IOCRO501MAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT* NO DISCHARGEl I I lI I : I IFrom: [ 08 0 o6 1401 j To: I 08 L 06j 30 Iq I I INOTE: Read instructions fore comoletina this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARAMETER OFAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS. ( 26) ---------- 4.04 6.25 (19) 0 240 DCSOLIDS. TOTAL SAMPLESUSPENDED MEASUREMENT00530 1 0 0 PERMIT L.BS/DY DA15.0 30.0 M_& WEELY COP2EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MG/L WEEKLY COMP24OLA DG ESSA PE.......... .......... (26) .......... 7.9 7.9 (19) 0 M8 GROIL AND GREASE SAMPLE 5G(SOXHLET EXTR.) TOT MEASUREMENT00550 1 0 0 PERMIT -LBS/DY 15.0 20.0 MG/L ONCE/ GRABEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MONTHFL W NC N UTO A P E0.051 0.081 (03) .....................------ 0 135 TMFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORT MGD ..... DAILY 24 HREFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX TOTALSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENT,PERMITREQUIREMENT ." ,NAMFffITLE I cenity under ponalty of law that this document and all attachments were prepared under my TELEPHONE DATEP R IN C IP A L E X E C U T IV E O F F IC E R d ire c tio n o r s u p e rv isio n in a c c o rd a n c e w ith a s y s te m d e s ig n e d to a s s u re th a t q u a lifie d p e rs o n n e l -. pg a a ee h rs u te o yof n "F 'properly gather and evaluate the informration submitted. Based an my inquity ot the person orLawrence M. Coyle persons who manage rhe system. or those persons directly responsile or gatherng "eI fion. 815 417-2000 08 07 28the intormation subndrnted is. to the best o0 my knowleoge and beliel. true. accurate, and co te. I IPLEPlant Manager am aware trat there are signiticant penalties tor submitling lalse information. including the Ei XECU.(VOFFICER OR AREA NUMBER YEAR MONTH DAYPED onl P RINTED o0 fine and imprisonment for knowing violations. AUTIORqED AGENT COD E NUMBER _ER MO T _ ACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF I PERMITTEE NAME/ADDRESSNAME Exelon Generalion Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RI. 53. Suite 84Braceville. IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0048321 I -001 BPERMIT NUMBER I I DISCHARGE NUMBER4MONITORING PERIODYEAR MONTH I DAY I YEAR MONTH DAYOCR0501MAJORjSUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT* *
- NO DISCHARGE I ""From:[ 80 06 1 01 IT°ol 08 I O6 I30 1NOTE: Read instructions belore complein this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO.- FREQUENCYPARAMETER OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOD. 5-DAY SAMPLE(0D. MEAME 0.69 1.1 (26) ----- 9.1 11.0 (19) 0 240 DC(20 DEG. C) MEASUREMENT00310 1 0 0 PERMIT 19.5 39.0 30.0 60.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILYMAX 30 DAY AVG DAILY MAX MGL WEEKLY COMP24PH SAMPLENT .......... 7.78 .......... 7.94 ( 12) 0 240 GRMEASUREMENT______ ______00400 1 0 0 PERMIT 6.0 9.0EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUMSOLIDS. TOTAL SAMPLESUSPENDEDLMEAME 0.62 1.1 ( 26) .......... 7.7 11.0 ( 19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 PERMIT 19.5 39.0 30.0 60.0LBRS/DY .MG/L WEEKLY 00MP24EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX _ _30 DAY AVG DAILY MAXFLOW, IN CONDUIT OR SAMPLEFL W NC N UTO A PE0.010 0.025 (03) ....................-.......... ..... 0 135 CNTHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORT 'EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXSAMPLEMEASUREMENTPERMITREQUIREMENT *.SAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENT ' " " " GNA____ ___PINAME/TITLE I cenity under penalty (A law that this document and alt attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direciion or supervision in accordance with a system designed to assure that qualified personnelproperty gather and evaluate the information submitted. Based on my inquiry of the person or mLawrence M. Coyle persons who manage the system, or those persons directly responsible tor gatherng the inormai. n. a 08 07 28the information sutrmited is. to the best of my knowledge and betel, true, accurate. and complet I INCIPLEPlant Manager am aware trial there are sigmficant penalties for submitting lalse inlormation. including the O iy EX UTI OFFICER OR AREA NUMBER YEAR MONTH DAYTYPED On PRINTED 01 line and imtpnsonmittent for knowing violations. AHO.ED AGENT CODE_COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF 1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAMEJADDRESSNAME Exelon Generation Co.. LLCADDRESS 4300 Winlield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53. Suite 84Braceville. IL 60407IL0048321PERMIT NUMBER001 CDISCHARGE NUMBERMONITORING PERIODYEAR MONTH DAY YEAR MONTH DAYOCRO501MAJOR(SUOR 02)F -FINALRADWASTE TREATMENT SYSTEMEFFLUENT* "
- NO DISCHARGEFrom: 1 08 I 06 I 01 1 To:I 08 I 06 I30 1I I I II I I lNOTE: Read insttctions fore completing this formQATTORLAIGFREQUE'NCYQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. SAMPLEPARAMETER OFAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS( TOTAL SAM PLE .................... 26) --------- 1.35 1.6 (19) 0 240(1) CPSUSPENDED MEASUREMENT00530 1 0 0 PERMIT 15.0 30 MG/L WEEKLY COMPOSEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXOIL AND GREASE SAMPLE .................... 126) ......... 2.65 2.65 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENT __19)00550 1 0 0 PERMIT -- LBS/DY --15.0 20.0 MG/L ONCE/ GRABEFFLUENT GROSS VALUE REQUIREMENT 309 DAY AVG DAILY MAX MONTHFLOW .IN CONDUIT OR SAMPLE 0.009 0.009 03) ............. .............. 135 CNTI-IRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILYMAXSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENT .SAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENT __NAME/TITLE Iceruy under penalty of law that this document and all attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER directon or Superviston in accordance with a system designed to assure that qualified personnel *__ __ _property gatner and evaluate the infortation Submitted. Based on my inquiry of the person orLawrence M. Coyle persons whrO manage ne system or those persons diry esponsible for gathertng the inlormati G 815 417-2000 00C28the rntormation submitted is. to the best of my knowledge and belief. true. accurate, and complete I 1 GN CIPLEPlant Manager am aware that there are significant penalties for submitting false information. incuding theXUIVEFFCER OR AREA N Y MNof ED O f1 tine and imprisonment lo, knowing violations. n NUMBER YEAR M________________________________E___ AHR ED AGENT COF_ __ _____COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Samples taken weekly, when discharging. No discharge weeks of 6/9/08 and 6/16108.EPA Form 3320-1 (Rev 3/99) DR PAGE I OF I0 p 0 PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winlield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RI. 53. Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0048321 I 001 DPERMIT NUMBERI DISCHARGE NUMBERMONITORING PERIODF YEAR MONTH DAY I YEAR MONTH DAYFrom:l I 0 0 01 ITo. 1 8 06 30OCR0501MAJOR(SUOR 02)F -FINALDEMINERAUZER REGENERANT WSTSEFFLUENT-NO DISCHARGENU I OT: Reao instructions before comolelin this formPR EEQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX TYPEMAXIMM UNIS EX ANALYSISSOUIDS. TOTAL SAMPLE<06SOIS OA APE .......... .......... 1(26) .......... < 0.63 <1 19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 PERMIT --15.0 30EFFLUENT GROSS VALUE REQUIREMENT ,, .30 DAY AVG DAILY MAXFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORT MGD DAILY CONTINEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX _-SAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENT ___NAME[TITLE I cetniy under penariy of law that this document and aJi attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervision in accordance wvth a System designed to assure that qualified personnelproperly gather and evaluate the information sulnrrrted. Based on my inquiry ot the person orLawrence M. Coyle persons who manage the system. or those persons directly responsible for gatherng , 5 417-2i00t .0n PRNCPLEO 72the intormation submitted is. to the oest of my knowtedge and betief. true, accurate, a coLe. S AT 0 P CIPPlant Manager am aware that there are significant penalties tor subnitting lalse including the sbility EXE ,yE 0FICER OR AREA NUMBER YEAR MONTH DAY1YPCD OR PI4NtED of fine and imprisonment lot knowing violations. ALHORIZEI] AGENT CODECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF 1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITrEE NAME/ADDRESSNAME Exelon Generation Co.. LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power SlationLOCATION 35100 S. Rt. 53, Suite 84Braceville. IL 60407IL0048321PERMIT NUMBER001 0DISCHARGE NUMBERIMONITORING PERIODYEAR MONTH I DAY I I MONTH DAYOCRO501MAJOR(SUBR 02)F -FINALCOOUNG POND SLOWDOWN UNEEFFLUENT* *
- NO DISCHARGE ] "From:l 08 I 06 I 01 ITo: 08 1 06 1 30NOTE-: Reaa instructions fetore comoletin tis formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF TPAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSISTEMPERATURE. WATER SAMPLETEMPERATURE.WE.................... ........... 89 (15) 0 135 CNDEG. FAHRENHEIT MEASUREMENT00011 1 0 0 PERMIT REPORTEFFLUENT GROSS VALUE REQUIREMENT DAILY MAX DEG.F DAILY CONTINPH MEASUREMENT .......... 7.66 ..........-8.68 ( 12) 0 240 GR00400 1 0 0 PERMIT 6.0 9.0EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUMOXIDANTS. TOTAL SAMPLE.......... .......... (26) .................... < 0.03 ( 19) 0 285 GRRESIDUAL MEASUREMENT34044 1 0 1 PERMIT LBS/DY 0.05 ONCE/EFFLUENT GROSS VALUE REQUIREMENT " DAILY MAX MONTH GRABFLOW. IN CONDUIT OR SAMPLEFL W NC N UTO A PE9.43 20.5 1(03) ------.......... .......... ..... 0 135 CNTHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORT MGD ..... DAILY CONTINEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX M_...AL COTCHLORINE. TOTAL SAMPLEC L RN .T T LS M L------.......... (26) --------.....--- N/A(1) (19) --- 500 OTRESIDUAL MEASUREMENT50060 1 0 0 PERMIT 0.2 ONCE/EFFLUENT GROSS VALUE REQUIREMENT -- LBS/DY -.DAILY MAX MG/I MONTH GRABCHLORINATION DURATION MEASUREMENT .......... ..... .......... 110 (14) 0 135 MS78739 1 0 0 PERMIT REPORT SEEEFFLUENT GROSS VALUE REQUIREMENT ...... ____DAILY MAX MINUTESPERMITSAMPLECHLORINE USAGE MEASUREMENT 2224 2414 (26) .................... 19) 0 135 MS81400 1 0 0 PERMIT REPORT REPORT LBS/DY __& SEEEFFLUENT GROSS VALUE REQUIREMENT MO AVG DAILY MAX I IMG/L PERMITNAME/TITLE I certify under penalty of law that this document and all attachments were prepared under Myr TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER cirecuton or supervision in accordance with a system designed to assure that qualified personnelproperty gather and evaluate me information submitted. Based on my inquiry of the person orLawrence M. Coyle persons who manage the system. or those persons directly responsible lot gathering the inlt 815 417-2000 08 07 28me mlormation submnitted is. to the best of my knowledge and betief, true, accurate, and comnlp e. I SI ATUA OF PRINCIPLEPlant Manager am aware that there are significant penalties for submit lalse information. incutirlg the bilty EXE I E OFFICER OR AREA DAY'P 2R dl ~tine and unprisonment for n ATH IZED AGENT CODvilains NUMBER YEAR .'MONTH DCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3199) DR PAGE I OFi1 ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: June 26, 2008Time: 1:30 p.m.0.080.07X0E)0.0610.050.04<0.03510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.June Bromine Usage: 387 lbs. Monthly Average569 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/I June 2008 Discharge Monitoring ReportSpecial Condition 7 of our permit imposes pumping restrictions at the RiverScreen House during a four week period (last three weeks of May and the first week ofJune) when pumping will be allowed only during daylight hours. Listed below are thedates and times the make-up pumps were operated during the June 2008 restrictedperiod.0Date6/1/086/2/086/3/086/4/086/5/086/6/086/7/086/8/08Start Time8:18 a.m.9:38 a.m.6:40 a.m.6:33 a.m.6:33 a.m.8:50 a.m.8:55 a.m.8:55 a.m.Stop Time5:20 p.m.6:00 p.m.6:00 p.m.6:00 p.m.6:23 p.m.5:58 p.m.6:00 p.m.6:10 p.m.# Pumps Operatinq22211111'Plant Manager k,,*Braidwood Generating Station Exeio(ýn.xoaldv ("I,1t'.flinn(o nfnv IRO I YL Iil.V 8,www oxc~loncLorp.comnNuclearCERTIFIED MAILAugust 28, 2008BW080084Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the July 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Tim Meents at (815) 417-2880.Respectfully,Plant ManagerBraidwood GeneratingEnclosure NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMIT-EE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winlield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53. Suite 84Braceville, IL 60407I IL0048321PERMIT NUMBERF _ 001 AI DISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT...NO DISCHARGEI MONITORING PERIODYEAR IMONTHI DAY Y I IMONTH D DAYFrom: I 08 I 07 I 01 I To: I 08I 07 I 31 It I I INOTE.: Read instructions before completib this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER EOFAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSISSOUDS, TOTAL SAMPLESUSPENDED MEASUREMENT 2 4.08 520 (19) 0 240 DC00530 1 0 0 PERMIT LBS/DY 15.0 30.0EFFLUENT GROSS VALUE REQUIREMENT -30 DAY AVG DAILY MAX MG/L WEEKLY COUP24OIL AND GREASE SAMPLE(SOXHLET EXTR.) TOT MEASUREMENT (73 (19) 285 GR00550 1 0 0 PERMIT LBS/DY 15.0 20.0 ONCE/EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MG/L MONTH GRABFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORT MGD DAILY 24 HREFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX TOTALSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMIT__REQUIREMENTI cery under penally of law that this document and alt attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervision in accordance with a system designed to assure that qualified persornelproperty gather and evaluate the inlonf onati submitrted. Based on my inquiry of the person orLaw rence M .Coyle persons who manage the system, or those persons d eca y rmsponsi le gor gahering the itn tIf a DPltnrtao subted s. to the bes i my knowlede and bel. true, accurate, and SOFPINCIPL NUMBER YEAR ONntwe OR oUea Fandtmronroene aw sig eelaons. A ORIZED AGENT E YEAR DAYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR -PPPPPP OFP NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMI-TEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, (L 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407S IL0048321I ]001 BPERMIT NUMBERDISCHARGE NUMBERI MONITORING PERIODYEAR MONTH DAY I YEAR MONTh DMAJOR(SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT... NO DISCHARGEFrom: 1 08 I 07I 01 i To:1 08 I 07 I 31I l l lNOTE: Read instructions fefore completinr this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARAMETER ______N. OF SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX OF TYPE_____________ _______________ANALYSISBOD, 5-DAY SAMPLE(20 DEG. C) MEASUREMENT 1.04 3.17 26) 10.88 is (19) 0 240 DC00310 1 0 0 PERMIT 19.5 39.0 30.0 60.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DALY MAX LBS/DY 30 DAY AVG DAILY MAX MG/L WEEKLY COMP24PH SAMPLE 7.80 8.03 12) 0 240 GR-MEASUREMENT __7.8___03 ( 12)0_240_G00400 1 0 0 PERMIT _ 6.0 9.0EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUMSOLIDS. TOTAL SAMPLE 0.40 1.08 1 26) 4.97 6.5 0 240 DCSUSPENDED MEASUREMENT 19)00530 1 0 0 PERMIT 19.5 39.0 30.0 60.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX Y30 DAY AVG DAILY MAX MFLOW. IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.013 0.046 03) 0 135 CN50050 1 0 0 PERMIT REPORT REPORT MGD DAILY CONTINEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMIREQUIREMENT rSAMPLEMEASUREMENTPERMITREQUIREMENT A_ _,,NAMIEf/TLE I certY u'der penalty of law that &Me domunentt andt aln atwuats were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFRCER diectin or SUpereidoi in accordance with a system designed to assure tha qualified personnelpropedy gathier ard evaluate the imormation submitted. Based on my inquiry of the person or 7 417-2Lawrence M. Coyle Persons who manage Uve system. or ftse persons rasponsdile f- gatherng the U 08 08 28the information itted i. to tie best of my knowledge and belief. tre. accurate. and complete i .E F PRINCIPLE 0 80Plant Manager am aware tat0 there are svigrn penalties for srmng false informiaIo n iudg te posilly EXU E OFFICER OR AREA P DAYn, E o OR PRrrM' of rawe and im rs n eZfor Nw v ",iclavons. EA N ER YEARD AGNNH DAYIa knwigvlltORIZED AGENT CD ___ _ ____ICOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF 1 PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Bracevihle, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0048321 001 CPERMIT NUMBER DISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F -FINAL.RADWASTE TREATMENT SYSTEMEFFLUENT.NO DISCHARGEj "MONITORING PERIODYEAR I MONTH DAY YEAR MONTH I DAYFrom-. .08 1 07 01 To:- 08 1 07 131 1NOTE: Read instructions fore comoletina this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS AX YS TYPEANALYSISSOUDS. TOTAL SAMPLE 26_9SUSPENDED MEASUREMENT (26) ( 19)00530 1 0 0 PERMIT LBS/DY 15.0 30.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX M WEEKLY COMPOSOIL AND GREASE SAMPLE 26_9(SOXHLET EXTR.) TOT MEASUREMENT (26) (19)00550 1 0 0 PERMIT -LBS/DY 15.0 20.0 ONCEJEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX 4MONTH GRASFLOW, IN CONDUIT OR SAMPLE (03)THRU TREATMENT PLANT MEASUREMENT ( --50050 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMIT________________REQUIREMENT______ __________NAMEJTTLE I certify under penalty of law that this domoei ard all attachmmer were prepared urtcW rny TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER directlon or supemismo in accordance with a syslem designed to assure tdia quaitied personnel pproperty qather and evaluate the nOrmalion submitted. Based on ray inqur of the persmon orLawrence M. Coyle persons who manage etW system. or ose pers directly resporsile for gatieringto 815 4172000 0the Hormation subndsed is. to the best of my ktowedge and belef, true, accurate NATUR PRINCIPLEPlant Manager am aware that there are sWigicant penaties for surnttn false blomalion, EXECthe EE FFICER OR A NYNp R PNT ofine arid i: entfor o, io. I D NUER YEAR MONTH DAYwPOI- AU D AGENT ICODECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments hem)No discharge during July 2008.EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF 1B NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenvtile, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53. Suite 84Braceville. IL 60407PRI0048321I PERMIT NUMBER001 DDISCHARGE NUMBERI MONITORING PERIODYEAR IMONTH DAY _ I YEAR IMONTHI DAYOCRO501MAJOR(SUBR 02)F -FINALDEMINERALIZER REGENERANT WSTSEFFLUENT.NO DISCHARGEFrom: I 08 I 07I O0 I To: I 08 I 07 I31 1l & l lNOTE: Read instructions (efore comaetin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARAMETER___ _______ _-____OF____SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS OEX TYPE_ _ _ANALYSISSOUDS, TOTAL SAMPLE 2194SUSPENDED MEASUREMENT 0.91 1.90 (19) 0 240 DC00530 1 0 0 PERMIT 15.0 30.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 050050 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTNAhIEtfTLE I erify under penalty of Law tha this document and atl atacmientas were prepre under my /TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or spetsm in accordance with a system designed to assure that quadied persornnelpmpedy gaher and evalute te infomation suttrmtted. eased on ryinqy of ethe person orp5Lawrence M. Coyle persons wtto manage the system, or those persons irecty responsible for gathering ute indonnation, 08 08 28Plant Manager am aware vm tter are signficant penals I for aubnttg fale iomaton, fling the possbity EXE OFFICER OR YAREMTPDOR PPNTEDm of fine and im~risonmerd for krwino volalions. ItTOpDAET CD NUMBER YEAR MONTH DAYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Refmerne all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OFI PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenvigle, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE EUMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0048321 001 0PERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODYEAR MONTH DAY I YEAR I MONTH DAYFrom: I I 07 01 /To: 1 0 07 31OCRO501MAJOR(SUBR 02)F -FINALCOOUNG POND BLOWOOWN LINEEFFLUENT... NO DISCHARGENOTE: Read instnjctions bore comletinb is formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO- FREQUENCY SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPETEMPERATURE, WATER SAMPLEDEG. FAHRENHEIT MEASUREMENT --- 9 (15) 135 CN00011 1 0 0 PERMIT REPORTEFFLUENT GROSS VALUE REQUIREMENT DAILY MAX DSAMPLE 88j)4PH MEASUREMENT -- 8.02 8.94 ( 12) 240 GR00400 1 0 0 PERMIT 6.0 9.0EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUMOXIDANTS, TOTAL SAMPLE 2018RSDAMAURMN --(26) -<'0.03 (19) 0285 GRRESIDUAL MEASUREMENT34044 1 0 1 PERMIT __ LBSDY 0.05 ONCE GEFFLUENT GROSS VALUE REQUIREMENT DAILY MAX MG/M GRABFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORT MGD DAILY OON"INEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXCHLORINE. TOTAL SAMPLE -- (-A(1) 19) 0 500 OTRESIDUAL MEASUREMENT (26)_N/A(1_ (1____O50060 1 0 0 PERMIT _SY0.2 ONCE/EFFLUENT GROSS VALUE REQUIREMENT LBSIDY DAILY MAX MG/L GRABCHLORINATION DURATION MEASRMPENT 110 1(14) 0135 MS78739 1 0 0 PERMIIT -REPORT MNTSSEEEFFLUENT GROSS VALUE REQUIREMENT DAILY MAX MNTSPERMITSAMPLECHLORINE USAGE MEASUREMENT 2210 2414 (26) 19) 135 MS81400 1 0 0 PERMIT REPORT REPORT ____ SEEEFFLUENT GROSS VALUE REQUIREMENT MO AVG DAILY MAX ____D_ I G_ PERMITNAME/TITLE I certify wide? parfty of law that this document and ag attadhments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supevsiort in accordance with a system designed to assure that qusalled personnelproperty gather and evaluate the inftorrnato sutjbritted. Based an my iuqilry of the person orLawrence M. Coyle persons who manage the system, or ttose persons drectly responsdle for gathering the o ,. 815 417-2000 082theInformaon submvited is. to the best of my knowledge ard befte, tre. accurate. and comptet. NA -OF FRINCIPLEPlant Manager am aware that there am pentales tor sub'ihtg false Wirmmon otoudicng the g OFFICER OR AR NUMBER YEAR MONTH DAY,, O R P,.[?fTE of finte and Impriso nme nt for towing vditons. LITHOR ED AGENT CODECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3199) DR *PE1 OF 1 '1ATTACHMENT INATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: July 25, 2008Time: 1:30 p.m.0.080.070.06S0.05I--0.04<1313510152025Time (Minutes)The Unit I and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.July Bromine Usage: 647 lbs. Monthly Average792 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/I AExekni.m'-~oT ....... I km Corn p ny, I ICHr iidwooti StationWOILO Sou'th ROi~tu 53, S"Ite 84Hra'Cevilir. It 60407 961')wwwexeloncorp.cornNuclearCERTIFIED MAILSeptember 26, 2008BW080088Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the August 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Bakari Baker at (815) 417-2299.Respectfully,151ant ManagerBraidwood GeneratingEnclosure NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMnITEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER I001 A dDISCHARGE NUMBERIMONITORING PERIODMAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT... NO DISCHARGE EJIII YEAR I MONTHI DAY1 YEAR IMONTH I DAY Il
- l I tFrom: 1 08 1 08 ' 1 1 1To: 1~ 08 1 0 31 1NOTIE: ead instructions before completin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARAMETER- OF SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX AAS TYPESOLIDS, TOTAL SAMPLE 26) 0294SUSPENDED MEASUREMENT (2 0.80 2.0 (19) 0 240 DC00530 1 0 0 PERMIT LBS/DY 15.0 30.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MG/L WEEKLY I0W24OIL AND GREASE SAMPLE 3.65 3.65 19) 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENT (100550 1 0 0 PERMIT LBSDY 15.0 20.0 MG/L ONCE/ cawEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MONTHFLOW, IN CONDUIT OR SAMPLE 0.35THRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORT MGD DAILY 24 HREFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX TOTALSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTScatI cerwy .er pewaly oat taw ta tehis docuent and a attacturems were wegpaxed Laser my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER &irmction or supervision in accordance with a system designqd to assure thaM qualified persontelproperly gafthe arid evaluate the ill ortnatitir submitted. Based on my inquiry of fth persmor 815 14720Lawrence M. Coyle persors who mnaage the system, or tose perons directly msponsle for gattering the infotm- F 08 09 26the iformation submIted is, to the best of my finowledge and beSef. true, accurate. and I. R INCIPLE YPlant Manager am aware wthtSrem arm s~licat peraltes to' suirdtVtin fas~e inomai inctldcar fte CUTI OFFICER OR AREANUBRYA MOTDYot tine and tiripriorment tor timning violations. M0 UBRYA OT Ao,~~ pp' A IZED AGENT CDJ___COMMENTS AND EXPLANATION OF ANY VIOLA7TiONS (Reference all attachmentS here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF'a a B NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville. IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Ri. 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 1DISCHARGE NUMBEROCRO501MAJOR(SUJR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT*. NODISCHARGE EJMONITORING PERIOD IYEAR I MONTH IDAYI I MO I MONTHI DAYFrom:I 08 I 08 I01 1 To:[1 08 1 08 1 31JNOTE: Read instructions efre cornvlefino mis formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER NO. OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSISBOD, 5-DAY SAMPLE 1.54 2.17 (26) 9.175 13 19) 0 240 DC(20 DEG. C) MEASUREMENT00310 1 0 0 PERMIT 19.5 39.0 30.0 60.0EFFLUENT GROSS VALUE 30 DAY AVG DAILY MAX 30 DAY AVG DAILY MAXSAMPLE 787 8.15 12) 0 240 GRMEASUREMENT _ _7.87 8.15 (1) 0 20G00400 1 0 0 PERMIT 6,0 9.0EFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUMSOLIDS. TOTAL SAMPLESUSPENDEDLMEAME 0.72 1.67 (26) 3.71 5.43 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 PERMIT 195 39.0 30.0 60.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX 30 DAY AVG DAILY MAXFLOW, IN CONDUIT OR SAMPLE 0.35THRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTNAEIITI'.E I cetiuy uneer penajty of law that 0is document and all alladrmets were prepared urder my TELEPHONE DATEPRINCIPAL EXECLmVE OFFICER directiom or supervmson In accordance wih a system designed to assure thal wafll personr_ _property arnd evaluae te informabor isubmited. Based on my nqruW of the persoot or 8 4172000Lawrence M. Coyle persorm who mwang the systea', or those persons directly resportsdible for gafteingf i15417-m 08 09 26ft Unfrmatbon submitted is, to tMe best of my Inowledga anid belief, Mte. acuate, and I NAH F PRINCIPLEPlant Manager im aware that ttere are sgriart penalties for su=Mtting false inormnatmn. mncdg the p..OFFCER OR AREANPlant Manager atm Iire and imprisonmeti tor knowing voiorl. NUMBER YEAR MONTH DAYTYWEDORl5 PRtSEIEI) UTHO 0D AGENT ICOD _______COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachmente here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDESDISCHARGE MONITORING REPORT (DMR)PERMIT'EE NAME/ADDRESSNAME Exelon Generation Co.. LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407ILOO48321PERMIT NUMBER001 CDISCHARGE NUMBERI " MONITORING PERIOD IYEAR I MONTH I DAY I I YEAR I MONTH I DAY IOCRO501MAJOR(SUBR 02)F -FINALRADWASTE TREATMENT SYSTEMEFFLUENT"..NODISCIARGE LIJ'From: I 08 I 081 01 I To:l 08 I 08 131 II I l lNOTE: Read instructions tore comoletin this formC QUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARTAMETER OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS, TOTAL SAMPLE -1 26) 0.80 2.6 19) 0 240(l) DCSUSPENDED MEASUREMENT ( 26)_0.80 _ .6_(___)_24__1)_D _00530 1 0 0 PERMIT LBS/DY 15.0 30.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MGIL WEEKLY COIfqOOIL AND GREASE SAMPLE 1)99 0 285 GH(SOXHLET EXTR.) TOT MEASUREMENT00550 1 0 0 PERMIT -LamY -15.0 20.0 IL ONCE/ GRABEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MONTHFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.01 0.01 (03) -- 135 CN50060 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXSAMPLEMEASUREMENTPEFIMITREQUIREMENTSAMPLEMEASUREMENTRE-Q U RE ME T__ _SAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENT _____ _____ ___I cerly under penay at law that ths docirnent and all attaduneret were prepared under my TELEPHONE DATEPRINCIPAL E)CECUTnVE OFFICER direction of supenision in accordance with a system designed to assure tha quafied personnel TELPHNEATproperly gather a rd eval uate the ior saton subm ited. Based on my rn syiy to the person or ILawrence M. Coyle persons who manage the system, or those persons diectly responsibe for gathering the ifomnatlon. 815 417-2000 08 09 26the frorniatio submittled is. to the best dt my Irnwwedge and belie. truje. accurate, and comptete. 1' SIG URE P IINCIPLE _ _ _ _Plant Manager am aware thatthere arem sqgnia penahm for itoirnaton, ttudiN`tlhe CUT 0FCER OR AREA NUMBER YEAR MONTHlot fare and toprisorunent for knoewinig vrolations. AUMBE YEA AGENT DAYTYPM OR PR~rED oUT FR ad s CODECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Samples taken weekly when discharging. No discharge during the weeks of 8/18/08 and 8/25/08EPA Form 3320-1 (Rev 3/99) DR PAG 1OF I NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDDISCHARGE MONITORING REPORT (DMR)PERMITnEE NAMEIADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suiteb 84Bracaville, IL 60407IL0048321PERMIT NUMBERDISHAGEMUMERIES)OCRO501MAJOR(SUBR 02)F -FINALDEMINERALZlER REGENERANT WSTSI EFFLUENT*"* *NO DISCHARGE ED] ...MONITORING PERIODYEAR MONTH AY YEAR MO DAYFrom:. 08 01 To: 08 08 31NOTE: Read instructions before corn lefin this lormQUANTITY OR LOADING QUANTITY OR CONCENTRATION No. FREQUENCY SAMPLEPARAMiETER __ ___N. OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX OF TYPESOLIDS, TOTAL SAMPLE 26_ 0000SUSPENDED MEASUREMENT (26) -0.5 0.5 (19) 240 DO530 1 0 0 PERMIT LBS/DY -15.0 3MGL WEEKLY COMW-EFFLUENT GROSS VALUE REQUIREE 30 DAY AVG DAILY MAX MWEL__FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.02 0.30 03) 0 5N50050 1 0 0 PERMIT REPORT REPORT MGD DAILY CONTINEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXSAMPLEMEASUREMENTPEIRMITREOUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTNAMFJ'nTLE I certify under penalty of law that thOs document and all attadcrents were prepared under my TELEPHONE DATEPRINCIPAL EX]ECUTIVE OFFICER dleion or superv in acoraance with a systen designed to assure that qualified personnel _00_ TELPHOEIDATproperly gather and evatuate the lornaio subnmitted. Basedon myrtilrlyo1thepersonor -2000Lawrence M. Coyle persons who manage the system, or those person directy responsbte for g0hering the Wa- 815 417-2000 08 09 26Itteormatii submitted is. to the best of nmy lnowledge and betel, tUe, accurate. and I ,0WXNATU PRINCIPLEPlant Manager am aware thal there are penalties for submtfalse fainfoation. inncling the EXEC 0FICER OR AREA NUMBER YEAR MONTH DAYTYPM OR PRMM at fline and errprisonment for knowinig violatione. jfHlZ AET CDCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments hem)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDESDISCHARGE MONITORING REPORT (DMR)PERMIT"EE NAME/ADDRESSNAME Exelon Generation Co.. LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407IL0048321 001 0PERMIT NUMBER DISCHARGE NUMBERMONITORING PERIOD IYEAR- I MONH I _ I 1YEAR ONTHI Y IOCRO501MAJOR(SUBR 02)F -FINALCOOLING POND BLOWDOWN LINEEFFLUENT... NO DISCHARGE E "-dm~nrtnat~raeanan thiq InrmFrom:1 08 1 081 01 ITo:1 08 I 08 1 31 1ATYORLAIGFREQuENcYQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. SAMPLEPARAMETER EX OF TPAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS TYPETEMPERATURE, WATER SAMPLE 912 (15) 0 135 CNDEG. FAHRENHEIT M EASUREM ENT REPORT I _00011 1 0 0 PERMIT REPORTEFFLUENT GROSS VALUE REQUIREMENT ,_IDAILY MAXSAMPLE 7-604PH MEASUREMENT -7.66 8.86 (12) 240 GR00400 1 0 0 PERMIT 6.0 9.0--SU WEEKL~Y GRABEFFLUENT GROSS VALUE REQUIREMENT MINIMUM MAXIMUMOXIDANTS, TOTAL SAMPLE (26) 0.05 19) 0 285 GRRESIDUAL MEASUREMENT (26)_0.05_(_19) 285_GR34044 1 0 1 PERMIT LBS/DY -O5 ONCETEFFLUENT GROSS VALUE REQUIREMENT DAILY MAX MG/L GRABFLOW, IN CONDUIT OR SAMPLE 23..THRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXCHLORINE, TOTAL SAMPLE 2_1 0RESIDUAL MEASUREMENT (6 A1 1) 050O50060 1 0 0 PERMIT LBSDY _ 02 MGI. ONCGAEFFLUENT GROSS VALUE REQUIREMENT DAILY MAX MONTHSAMPLE ___CHLORINATION DURATION MEASUREMENT -...-110 ( 14) 0 135 MS78739 1 0 0 PERMIT REPORT SEEEFFLUENT GROSS VALUE REQUIREMENT _ DAILY MAX MINUTESCHLORINE USAGE SAMPLEMEASUREMENT 2_40 2255 (26)_(19)_ 135 M_81400 1 0 0 PERMIT REPORT REPORT SEEEFFLUENT GROSS VALUE REQUIREMENT MO AVG DAILY MAX BY-MG/L _masEmm-E I cerwy under p" dy law rma M document andt a Sa1naomm- were pPrepared unde! my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFrCE R direction or supervsion i accordance a system designed to assure that quakled personnelproperly gather arnd evaluate the intomration su.mite Based an my inqury of the person or 1 417-2000Lawrence M. Coyle persons who manage ttl system, or th osepersons'iarectly resporsie tar gatherd ngthe PRINCIPLE 08 09 26the bicmanionido submeitted is. to the best of mny knooledge and befief. true. a~carale. and .I TU PRN IL_ _ ___ _ _ _ _Plant Manager am awae ttoaresignifcant fes fo sutnirglalse sicmud- EXECUT^OFFICER OR AREA NUMBER YEAR MONTH DAYiiEDOR PRM offine and Im f APOR DAGENT CODE NUMBE YER _ONHACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3/99) DR PAI_ OF 1 ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORT0Exelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: 8/29/08Time: 13:30 p.m.0.080.070.06E0.050.04<0.03510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.Bromine Usage: 138.1 lbs. Monthly Average174 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/I Exelkn.Exelon Generation Company. LLC www~exeloncorp.com NuclearBraidwood Station35100 South Route 53' Suite 848raceville, IL 60407-9619CERTIFIED MAILOctober 28, 2008BW080106Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the September 2008 Discharge Monitoring Report for Braidwood Stationas required by our Permit #110048321.If you have any questions regarding the above, please contact Bakan Baker at (815) 417-2299.RespectfulRespeLawrence M. CoylePlant ManagerBraidwood Generating StationEnclosure NATIONAL POLLUTANT DISCHARGE EUMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCR0501PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RI. 53. Suite 84Braceville, IL 6040711-0048321PERMIT NUMBER001 ADISCHARGE NUMBERMAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENTNO DISCHARGEIMONITORING PERIODI ...... ..l1 YEAR MONTHFrom: 1 08 09DAY 7 YEARMONTHDAYý01 1 Tw. 108 09 30 1NOTE: Read instructions fore omoIetina this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER AOFAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOUDS, TOTAL SAMPLE 26) 1.28 1.7 19) 0 240 DCSUSPENDED MEASUREMENT ...... _______"."_ ___0__,_,__0v -15. 0 30.000530---MT-- LBSDY WEEKLY oM.:EFFLUENT GROSS VALUE "REQUIREMENT 130 DAY AVG. DAILY MAX .'OIL AND GREASE SAMPLE 26) 148 148 19) 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENT ()_1192500550 1 0 0 PER 's- ., ., :' .6., " ONCE/EFFLUENT GROSS VALUE REQUIREMENT- ' ""' --.30 DAY-AVG .DAILY MAX MG/L -" 'GRA'FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0 -. .-o0050 1 0 0 PERMIT; ..REPOR.T- .REPORT. MGD --DAILY. T MTALEFFLUENT GROSS VALUE .REQUIREMENT 30DAY AVG. DAILY MAX TOTAL___SAMPLEMEASUREMENT.REQUIREMENT " -'.. .... _.." " _ _" -SAMPLEMEASUREMENTPER 7' -*REQUIREMENT --_7,SAMPLEMEASUREMENT*PERMITREQUIREMENT _____ _____ _____SAMPLEMEASUREMENTREQUIREMENT- ____"" __ : _-_- ___-,- _ -". ... ."NAMENITLE I certy under penalty of law that ths docunent and ao were prepared unr ry' TELEPHONE DATEPRINCIPAL EXECU'IVE OFFCER direction or supervnion in accordance with a system desined to asure that quaffied pemonnelproperty gather and evaluate the irifontion nsubmitted. Based on my Inquiry 0f the person orLawrence M. Coyle persons who manage the system., ortnose persons drfectty espornblte for gathenrtIg thWn .N O R IL 815 417-2000 08 10 28the nformation submitted is, to the best of my tknMedge and baele, true. acurmae, aned cRIJte. 1Plant Manager am aware tat there am significant penalties for submttin labse infonnatlon. inuding le EXECU OFFIR OR Z NUMBER YEAR MONTH DAYT W ED OR ;t fne and wnprisonm ent for Wnowing vior ations. A.HW V G NcCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachmenrt here)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF 11 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCROS01PERMITTEE NAMS/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60655FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville. IL 60407I IL0048321II I001 Bl II -PERMIrT NUMBER7 --I[DISCHARGE NUMBERMONITORING PERIODYEAR iMONTH IDAY _j IYEAR A MONTH IDAYMAJOR(SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT... NO DISCHARGE",From:i 08 1 091 ~01 j To:I 1 8 09 1 30INOTE: Read in. , his lormQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UOFTS ANALYSIS TYPEBOD. 5-DAY SAMPLE(2DEG.C) MEASUREMENT339 (26) -- 10.18 14 (19) 0 240 DC00310 1 0 0 ...PERMIT 19.5 '. -. 39.0 -30.0 : .- .60.0,G. .WE .L : '" "EFFLUENT GROSS VALUE REQUIREMENT" 30DAYAVG MDAILYMAX LBS/DY "P 30DAY AVG OILY MAX. MG/LPH SAMPLEPH MEASUREMENT 7.66 8.33 (12) 0 240 GR00400 1 00 , ERM-T I- 6. -.1 9.0 "- ...EFFLUENT GROSS VALUE 'REQUIREMENT --.. ". SU GSOLIDS, TOTAL SAMPLESUSPENDED MEASUREMENT 0.31 0.68 (26) -2.31 4.0 (19) 0 240 DC00830 1 0 0 -PERMIT 1L5 9.0 3.0.060EFFLUENT GROSS VALUE REQUIREMENT :-30:DAYAVG,. -DAILY MAX -I.BY 30 D DLY MAX WEEKLY.- COMP24'... * "30.DAY AVG DAIL.YMAX., PdFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.017 0.059 (03)- --- 0 135 CN50050 1 0 0 .-. PERMIT REPORT... --EORT MG0 ---ATEFFLUENT GROSS VALUE REQUIREMENT 30DAY AVG DAILY MAX'.. '"-" ..." .-IN.SAMPLEMEASUREMENTPERMIT ...REQUIREMENT -_ '_ _ ..- -_" _ -_.__" , -," --"". " ..SAMPLEMEASUREMENTPERMn"ITREQ-AREMENT "*- __-_-t __.__ _, _ _ -" ... -__SAMPLEMEASUREMENTPERMIT ". .'-_ REQUIREME NT -NAMErTLE I c Uner Penal o aw W~S dCUMerd and at agahenents were prepared Under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supesiusro in accordace with a system designed to assure thst qualfied peTsonnE .A.property galhst andi teatuae fte Wamuioatan subrnitted, eased on my irqua[ ofte person ofLawrence M. Coyle persons who manage the system or those persons directy responsae for gatering fe n, srGNA.,., 0. 10 20the intonrmatIo sutbmitted is. to the best of my knowledge and belief, tee. accate, and c ONATURE OF PCIPPlant Manager am aware tat ter are s pfor sub rb. la~ otI ..EXECUTIVE OF R OR AREA NUMBER YEAR MONTH DAY_____________ _____________________________r________. AUTHORIZE 'AGENT/ CODE NUBEAR MOTH DACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here) -EPA Form 3320-1 (Rev 3/99) ODR PAGnOF1Sv NATIONAL POLLUTANT DISCHARGE EUMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITrEE NAMEJADDRESSNAME Exelon Generation Co.. LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84IL0048321PERMIT NUMBERF O( l CI DISCHARGE NUMBERMONITORING PERIODYEAR I MONTH DAY Y EA Y MONT DAYMNOCR0501hMJOR(SUBR 02)F -FINALRADWASTE TREATMENT SYSTEMEFFLUENT.NO DISCHARGE -"*From:1 (8 ( 09 I01 1 TO: 1 081 09 1 30IBraceville, IL 60407NOTE: Read instructions before comipetn this fomtQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY"AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS YANALYSIS TPESOUDS, TOTAL SAMPLESUSPENDED MEASUREMENT00530 1 00 0PERMIT 3.0. .--..15..0 WEEKL .OMPOS.EFFLUENT GROSS VALUE REQUIREMENT. "._ .._ _ ._,__. ..30 DAY AVG DAILY MAX MG& .- , " , ..OIL AND GREASE SAMPLE(SOXHLET EXTR.) TOT MEASUREMENT 1.956 1.95 19) 0 285 GR00550 1 0 0 2 0PERMIT ..,."...15.0. ". .0 ONCE.EFFLUENT GROSS VALUE REQUIREMENT .". , 4 -DAILY MAX MG/L GMRAFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0010 0010 03) 0 135 CN50050 1 0 0 PERMIT REPORT ",REPORT M DALYCTINEFFLUENT GROSS VALUE REQUIREMENTX". 30DAY.AVG. DALY * : -SAMPLEMEASUREMENT .'_PERMITREQUIREMENT .SAMPLEMEASUREMENTREO. UREMENT " -: ,o * -" '" "': " .,, "- .." " """ "SAMPLEMEASUREMENTREQUIREMENT -_" " '" -.. -SAMPLEMEASUREMENT* PERMIT__________ ~REQUIREMENT._ _ _ _ _%%MU I Cefttiy watle penatly oflaw Diat tilt docmorent and ani artacllemets were prepared under mysTEEHNEDTPRINCIPAL EXECUTIVE OFFICER irrecticn or supervrision m accordance wit a system designe to assure that qualW personnet T ____D Eproperlygatter and evakae the Uormiosubmitted. easndmmy oftile .-815 417-2000 10Lawrence M. Coyle persos wio manage the system., o those perO-na erect responsbe for ga0=Wm tg ..E .INCIPLE 0_ 0 24 0ute kdormatwnsutW is. to tw best of rmyi kwwdgeaele, ue, and 1 IPNPlant Manager a-ware tatttem am soncartt periaties for sut sesm t batiuntinxbv9 C FFICER OR AREA NUMBER YEARJ MONTHo rie and WmprsotMeMs for owg AUHR D AGENT COON DAYCOMMENT AND EXPLANATION OF ANY VIOLATIONS (Reference at) alhactimenta here)(1) Samples taken weekly, when discharging. No discharge during the weeks of 9/1/08, 9/8/01 and 9/15)08.EPA Fom" 3320-1 (Rev 3/99) DR PAGE 1 OF1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407PERMIT NUMBER I001 DDISCHARGE NUMBERI MONITORING PERIOD IDA YEAR MO IYA ~NTH IDAY IOCRO501MAJOR(SUBR 02)F- FINALDEMINERALIZER REGENERANT WSTSEFFLUENT... NO DISCHARGE "JFrom: 1 08 1 091 01 I To:- 08 1 09 I 30I..... #' lINOTE: Read instructions fare comnIeti this form~FREQUENCYQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. F SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNTS ANALYSISESOUDS. TOTAL SAMPLE (26) 0.88 1.0 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 .-PERMIT , -.300. -WEEKLYEFFLUENT GROSS VALUE 'REQUIREMENT -.30 DAY AVG` DAILY.MAX MG/L..-...,......... .- .FLOW, IN CONDUIT OR SAMPLE 0.027 0.039 (03) 0 135 CNTHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT .'REPORT-. .REPORT" '. DA.LYEFFLUENT GROSS VALUE REQUIREMENT 30 DAY"AVG DAILYiMAX MGD :.' .Y.
- com .SAMPLEMEASUREMENT-..PERMIT -.REQUIREMENT. ""SAMPLEMEASUREMENT;PERMIT______________ REQIREMENT -SAMPLEMEASUREMENT ______________________.. ...IT> -REQUIREMENT_____ ___________ ________________SAMPLEMEASUREMENTPERMIT-. ---REQUIREMENT __._'_. __ ". -_- ___. _ :"" ___ ._ .." _____.. _.. :._.." "_'SAMPLEMEASUREMENT,S 'PERMIT -REDUIREMENTNAErnLJE I cenity under per6at d Law thi ft document and An atahmerOwre , Prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFRCER diELctiPn or supervDTonEinacoor whasystemnedtoassumthat personnapro"ygather and evawme the adrmon asubmltted. Basec on M mry of 0theperson or 1720Lawrence M. Coyle Perons who manage the system. or those persns dictly respIoe for og te Iformation. 08 10 28the Wormaton suwinteo is. to the best ol my wowedge aend beW. tn.e. accurate, and cmpnate. I /.6I90U RINCIPLEPlant Manager am aware ta them am significa penaties of sublmt tabse inforon. m te ,,4XE 'FGER OR AREA NUMBER YEAR MONTH DAYTW M 0R RLNT ---' m and nm Prtso nm n (o r knww " v d aiot ns. = I- r O.R ý F D A G E NT C O D E "COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3i99) OR0SW PERMITrEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Ri. 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONrTORING REPORT (DMR)IL0048321 001 0PERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODYEAR MONTH DAY YEAR'I MONTH I DAYFrom: 08 09 01 1 To: 08 1 09 L 30 1OCROS01MAJOR(SUBR 02)F -FINALCOOLING POND BLOWDOWN I.NEEFFLUENT* **NO DISCHARGE E- *NOTE: Read instructions fefore completina this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SPARAMETER ___ __N. OF SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ALI TYPE> < AERAG MAXMUM NITSANALYSISTEMPERATURE. WATER SAMPLE 135DEG. FAHRENHEIT MEASUREMENT00011 1 0 0 PERMIT -., REPORTEFFLUENT GROSS VALUE REQU'IREMET "- -* : .... *. DAILY MAX DEG F -LYSAMPLEMEASUREMENT --- 8.88 (12) 0 240 GR00400 1 0 a PERMIT .'.. ' -.6.0. 9 ..EFFLUENT GROSS VALUE REQUIREMENT' " ' SU ' " WEEKLY GRAB"OXIDANTS. TOTAL SAMPLERESIDUAL MEASUREMENT 26) 0.03 ( 19) 0 285 GR3441 1.PERMAIT' .' 0.05 OCELOW -..-.. ..AX MG/ GRA..EFFLUENT GROSS VALUE REQUIREMENT -.I ...-Y. -.-. MFLOW, IN CONDUIT OR SAMPLE 1 3A.30 M3) GRA5THRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT .REPORT REPORT MGD DAILYEFFLUENT GROSS VALUE REQUIREMENT: 30 DAY AVG "DAILY MAX. M' " DAIY CONTINCHLORINE, TOTAL 5AMPLE --.---- (26) N/A(1) (19) 0 500 OTRESIDUAL MEASUREMENT _ --60050100 :PEMIT.- ..`02EFFLUENT GROSS VALUE REQUIREMENT. ..--' DAILY MAX. -ONTECHLORINATION DURATION MSASUREMPLENT ...... 110 (14) 0 135 MSMEASUREMENT_____ _________________ ______78739 1 0 0 PERMIT. -REPORT SEEEFFLUENT GROSS VALUE .REQUIREMENT. -.... *_.____-__ -._'_
- DAILY:MAX MINUTES PERMITSAMPLECHLORINE USAGE MEASUREMENT 2317 2454 (26) 1- (19) 0 135 MS81400 1 0 0 -PERMIT REPORT REPORT SEEEFFLUENT GROSS VALUE RFIREMENT .MO AVG DAILY MAX .MNAMEITLE I certfY wude Denaflty of law itha this domumet and a antauawn were prepared wdear my TELEPHONE DATEPRINCUPAL VI OtFCEt, avecton or sutperism in accomance with a system desipea to asur dai quaffied parsonaelpropedy gather and evaluate the Iomion submtted. Based on my inquM of the person o1Lawrence M. Coyle persons who manage the system, or those perons recty respoarble for gatheSrin the uioriafN 815 417-2000 o8 to 1the iormatbon is, to the best of my IMoletdge and baiet, true. accuate, and comptee. SIGNA1%W F PRINCIPLE J_Plant Manager am aware that there ame sioltr peiafties for submtntg false infTolio lng thexft ibpoat EXECUTIVE OFFICER OR AREA NUMBER YEAR MONTH DAYTYPED OR MiTEDO ire ard sisonrttow irr iong AUTHORIZED AGENT NCUO YEAR MONTH____COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Altachment 1)EPA Form 3320-1 (Rev 3/99) DR PAGE I OFi Pi,ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: September 18, 2008Time: 12:18 p.m.0.080.070.06SS0.050.04<0.03if510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.September Bromine Usage: 813 lbs. Monthly Average1174 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 rewncedM. Coyle, Stati n er...JBraidwood NucleaStiC
,IExelkn.Exelon Generation Company, [[C www.exeloncorp.cor NuceanBraidwood Station35100 South Route 5j. Suite 84Braceville. II. 60407-9619CERTIFIED MAILNovember 25, 2008BW080115Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the October 2008 Discharge Monitoring Report for Braidwood Station asrequired by our Permit #1L0048321.If you have any questions regarding the above, please contact Bakari Baker at (815) 417-2299.Respectfully,Lawrence M. CoylePlant ManagerBraidwood Generating StationEnclosure PERMITrEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt 53, Suite 84Braceville. IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0OO321 001 APERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODo YEAR MONT DAY I YEAR MONTH DAY )From: 08 10 01 ITo: 08 10 31 1OCRO501MAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT.*NO OISCHARGE E *JNOTE: Read instructions fore comoleting this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER N. OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX A Y TYPE>< ANALYSISSOLIDS, TOTAL SAMPLESUSPENDED MEASUREMENT00630EF UN1 GRS0 0 VAUE R RUWEM NT:pR - "'"'." -",":" ." ".- ..LB/D : " '" .." ., ' " '"3'D Y Vo:1.0-. .'b ' D. M X .'0."', -/ ""-" "i _E30..0MP4--6.030. MG/I
- WEEiKLY COMP2EFFLUENT GROSS VALUE REQUIREMENT- "3 DAY AVG DAILY MAX"".____OIL AND GREASE SAMPLE2.89 19) 0 285 R(SOXHLET EXTR.) TOT MEASUREMENT (26)__.89 29(1) 085G00550 1 0 0 -PERMIWT " ..-" 15.0 -.20.0- .I GEFFLUENT GROSS VALUE -REQUIREMENT. .... ._.. '. _ _ _ 30DAY'AVG DAILY MAX " MONTHFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.063 013 (03) ---- 0 135 TM50050 1 0 0 PERrT -':'. .7REPORT:' REPORT MD DAILY. 24HR-EFFLUENT GROSS VALUE 'REQUIREMENT .30.DAY, AVG DAILY MAX M"D -.. " L TOTALSAMPLEMEASUREMENTPERMIT,SAMPLEMEASUREMENT~PERMff- _ _ _ _ _ _ _ _ _ _ _REQUIREMENT " ' "" " ' ' """"'" ""' ' : "SAMPLEMEASUREMENT-PERMIT. -" ."REQUIREMENT ... ,- ..:.... ., .._.SAMPLEMEASUREMENTPERMIT.REQUIREMENT_________ ..____I cer*ty under penalty of taw that this document and au attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER dnltion or" supemilon in a~cordane with a system designed to assure that qualified perweso TELEP--EDATproperty gather and evaluate the rdormation submted. Based on my rKryofthe 417Lawrence M. Coyle persons who manage the system, or those peon directly for gaNAeTUng the PoRIaCIonPL8 11 25the submaitted is. to the best of my Imoedge and bee. true. accurate, and comptete. I AU PRINCIPLE 2Plant Manager am aware that there are sigrfcant penalties for submitting false inf ation. including the ........ EXEC E FFICER OR AREA NdPnED .PRINTEM ofl th ard imprisonmentorx inowiviotins. HO EDAGENT COD NUMBER YEAR MONTH DAYCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OFI NATIONAL POLLUTANT DISCHARGE EUMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITrEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 64Braceville, IL 60407IL0048321PERMIT NUMBERF _ 001 BDISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT... NO OISCHARGEI MONITORING PERIODYEAR IMONTH I DAY I YEAR I MONTH I DAYFrom:1 08 1 101 01 I To:1 08 I 10 I 31II I IINOTE: Read instructions eore completina this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION No. FREQUENCYPARAMETER OF SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPEBOO, S-DAY SAMPLE(20 DEG CAME 0.47 1.0 ( 26) 4.2 7.5 ( 19) 0 240 DC(20 DEG. C) M EASUREMENT_00310 1 0 0 PE 5 39.0 ..-M WLBS/DY GLWEL OP4EFFLUENT GROSS VALUE -REQUIREMENT 30 DAY AVG DAILY MAX. -30 DAY AVG DAILY MAX ._MG/L .-_ --_"-_PH SAMPLEPH MASUEE 7.85 ---- 8.0 (12) 0 240 GRMEASUREMENT00400 1 0 0 PERMIT .. .-.. -9.0--EFFLUENT GROSS VALUE .REQUIREMENT --MINIMUM " -SU WEEKLY GRAB',.SOUDS, TOTAL SAMPLESUSPENDEDLMEASUEE 0.13 0.22 (26) 1.48 2-2 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 PERMIT 19.5 39!0.". LBSIDY 30.0- 60.00EFFLUENT GROSS VALUE .REQUIREMENT 30 DAY AVG DAILY MAX _ , _ 30_DAYAVG DAILY MAX. MG/L WEEKLY -COP2FLOW. IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.010 0.023 (03) .... 0 135 CN50050 1 0 0 PERMIT REPORT- REPORTEFFLUENT GROSS VALUE REQUIREMENT:- '.30 DAY AVG DAILY M MDIY...- .CONTIN'SAMPLEMEASUREMENTREQUIREMENT -...". ,.SAMPLEMEASUREMENTPERMITRIEQUREMENT _____SAMPLEMEASUREMENTPERMIT,:..REQUIREMENT y'- " '.. ""'". " ' "-NAMEMTLE ~I cert" under penialty, of law that tam documrent and alt attacniments were prepared wnder my TLPOEDTPRINCIPAL OFFICER trecli or sneron in accordance with a system designed to assure tt qualified personneTproperty gaýe and evaluae the information submitted. Based on my inquiry of the person orLawrence M. Coyle persmon who manage the system. or Ttoae pearos dire.tt, msponlsl tor gatV toWe 815470 08 11425the Information submitted is, to the best of my Itnowledge and Wlef, true. accurate, and complete. CIPLE"f fnP = ine and Vnnomn for Icnowing violations. .0" A OI#E GN CODE UBRYA OT ACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMIT'TEE NAMEIADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 CDISCHARGE NUMBERMONITORING PERIODYEAR MONTHI DAY Y I MEA I MONTH DAYOCR0501MAJOR(SUBR 02)F -FINALRADWASTE TREATMENT SYSTEMEFFLUENT" "NO DISCHARGE EiJ'I I :From: 08I " 101 01 ITo: 08 1 1031 1NOTE: Read instructionsthis ormQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF TPAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS, TOTAL SAMPLE AN419)I1SUSPENDED MEASUREMENT 1(26) 4.10 10.8 1(19) 0 240(l) CP006Mo 1 0 0 PIERMI 15.0 30ý .: -.-EFFLUENT GROSS VALUE REQUIREMENT .-LBS.DY 30 DAY.AVG, --DAILY MAX M.' WEEK"LY"" .OMPOSOIL AND GREASE SAMPLE -(SOXHLET EXTR.) TOT MEASUREMENT 10 1.0 19) 0 285 GR00550 1 0 0 PERMIT -.-....-20.0-. ONCFJEFFLUENT GROSS VALUE 'REQUIREMENT. --. LBS/DY -30.DAYAVG ... DILYMAX MG/ -: GRAB..FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.009 0009 03) 0 135 CN50050 1 0 0 .PERMIT- REPORT-%' REPOEFFLUENT GROSS VALUE PMEUIREMENT. 30 DAY-AVG DAILY MAX. MWD -~-- -DAILY: : NT. NSAMPLEMEASUREMENT--PERMIT.-REQUIREMEN j. .-SAMPLEMEASUREMENTPERMIT. .._,.... ..-. .... -.... *:: '.-- .. ... ..: .. .._REQUIREMENT " ...... ".-_"__._".,. -. :-- -SAMPLEMEASUREMENT-PERMIT- -.SAMPLEMEASUREMENTPERMIT -_____________REQUIREMENT -% _____ _________NAJAE/1TLE certiy uver penaty ofi law vim this documaet and an attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervision in accordance with a system designed to assvu~re that quaiftied peroweprheygaher andevasuatethe iiormatinsubmtted Based ars my mqrary of the person ornpi tR1 417-S2000Lawrence M. Coyle persarmw~o manage te sysem,-or nse persorm redtly ifemtawe S P.. ----- 08112th bromitimn submited e. to te best ci my knowedg and bee. tue. accuss and cutrpee. -.m, ,,,rPlant Manager am aware th there re significt penalties lor submthing talse bilomaim bioaing the pas e EXECUTOE OF CER OR 1 NME YAR ONTYEDO PRWE of fine and Imprisornment fotarikowing violations. A OR AGENT COD ONH ACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(I)Samples taken weekly, when discharging. No discharge weeks of 10/0(08 & 10/13/08.EPA Form 3320-1 (Rev 3/99) DR PAGE I OFI0 0 0 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMI-TEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 °DISCHARGE NUMBERMONITORING PERIODYEAR I MONTH F DAY I YEAR I MONTH I DAYOCRO501MAJOR(SUBR 02)F -FINALDEMINERALIZER REGENERANT WSTSEFFLUENT... NO DISCHARGE "*From: I 08 j 10 I 01 I To:I 08 I 10 1 31 Il I I Il I l I PERMIT'EE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 606555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL004M321 001 0PERMIT NUMBER DISCHARGENMROCRO501MAJOR(SUBR 02)F -FINALCOOLING POND SLOWDOWN LINEEFFLUENT...NODISCHARGELdnltrc:,R i: n I f- I .MONITORING PERIODII YEAR IMONTHI DAY I I YEAR IMONTHI DAYFrom: 1 08 10 1 01 To: 1 08 10 31NQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OFAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS PETEMPERATURE, WATER SAMPLE so 15) 0 1 CNDEG. FAHRENHEIT MEASUREMENT00011 1 00 PERMIT -- : REPORTEFFLUENT GROSS VALUE RE-QUIREMENT -- .--._7-_. --.DAILY MAX- DEG. F DAILY COT "SAMPLEPH MEASUREMENT 8.71 8.85 (12) 0 240 GR0040100 PER~r __- -.0 ... 9.0. ~ RAS00400 1 0 0 j, .. R T ,.- : *-:!... ...." .: + ::.. \" .WEEKLY':I GEFFLUENT GROSS VALUE REQUIREMENT-. :. .MINIMUM-. '_":_" _ MAXIMUM SUOXIDANTS, TOTAL SAMPLERESIDUAL MEASUREMENT (26) ........ <0.03 (19) 0 285 GR34044 1 0 1 .1 .00.PT" : .- 0.05 ONCEJ.EFFLUENT GROSS VALUE REQUIREMENT -..LBS/DY -DAILY MAX MONTH.: -! .GFLOW, IN CONDUIT OR SAMPLE 34.08 34.99 (03) 0 135 CNTHRU TREATMENT PLANT MEASUREMENT5006 1 0 0 ..MIT REPORT REPO--RDIYTCTNEFFLUENT GROSS VALUE .R66UIREMENT .30 DAY AVG: *.DAILY MAX. .-CHLORINE, TOTAL SAMPLERESIDUAL MEASUREMENT (26) -A(1) (19) -500 OT5006010 00 PERMiT. ... -LB. -0. -, 02 ONCE-. ,EFFLUENT GROSS VALUE REQUIREMENT-. "'_'-" _'___"-" """"r "'__,"'__ DALY MAX" MGL MONTH:CHLORINATION DURATION SAMPLE -- 110 (14) 0 135 MSMEASUREMENT___________________78739 1 00 s ..PERMR' 1- .REPORT SEE .EFFLUENT GROSS VALUE REQUIREMENT --"DAILY'MAX."- PERMIT:":"_.-.... .... ." .,,+, .. _ .... ,-...... + ...:' A Y ..A...+ M INUTES .: ":P R I ' ": .CHLORINE USAGE SAMPLEMEASUREMENT (26)81400 1 0 0 -PERRT. .REPORT -REPORTSEEEFFLUENT GROSS VALUE -REQUIREMENT MO AV,'G. DAILY ." -L PERMITNAMErrITLE I ceriy under penalty of law tha Um documen and al attafchants were prepared under myi TELEPHONE DATEPRINCIPAL EXECUnVE OFRCER direction or in accordance with a system designed toasstme t0t quatled personnelProperty gew and evatuate the lnformaion submitted. on my Inquiry of the person or 816 417-2000Lawrence M. Coyle persors who manage the system, or those persons directy responsrbae for gathering the I 25titommoatnt submitted is, to the best of my iowwede and beliet. Uue, acArte. and s t i,6G RE _.K CIPLEPlant Manager amaware that tee are speficant penalftes for srubitift flale Inuormationr. Tukdig the plssfltty CUTi OFFIC OR AREA NUMBER YEAR MONTH DAYrED OR PrMED at fine and iuprsoment for luommwng vwlatons. AUT IZED ENT CODn NB YRTCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all altachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: October 16, 2008Time: 1:30 p.m.0.0810.07(U-1o0 0.06S0.05i--0.04510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.October Bromine Usage: 466 lbs. Monthly Average680 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/IBadwde NuCoylear tManagerBra'idwood Nuclear n ExeknExelon Generation Company, LLCBraidwood Station35100 South Route S3, Suite 84Braceville. IL 60407-9619www.exeloncorp.comNuclearCERTIFIED MAILDecember 22, 2008BWO80120Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the November 2008 Discharge Monitoring Report for Braidwood Stationas required by. our Permit #1L0048321.If you have any questions regarding the above, please contact Bakari Baker at (815) 417-2299.RespectfullPlant ManagerBraidwood GeneratingEnclosure 0PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPVES)DISCHARGE MONITORING REPORT (DMR)IL0048321 001 APERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODYEAR MONTH DAY I YEA MONTH DAYFrom: 08 11 01 1 To: 08 11 30OCROS01MAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT' NO DISCHARGENOTE: Read instructions before corn pel this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OFAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS, TOTAL SAMPLE (26) -.- -.....1.30 180 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 PERMIT :L15.0 30.0EFFLUENT GROSS VALUE REQUIREMENT ______ 30 DAY AVG DAILY MAX MG/L WEEKLY COMP24OIL AND GREASE SAMPLE 26) <1 .0 119) 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENT00550 1 0 0 PERMIT " _LBS/DY .15.0 20.0 ONCE/EFFLUENT GROSS VALUE REQUIREMENT .*30 DAY AVG
- DAILY MAX MONTHFLOW, IN CONDUIT OR SAMPLE 0.067 0.099 03) ...... .... 0 135 TMTHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORT MGD 2 -DLTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG. DAILY MAX DAILY TOTALSAMPLEMEASUREMENTPERMITREQUIREMENT .... ._*SAMPLEMEASUREMENTPERMITREQUIREMENT .... " "SAMPLEMEASUREMENTPERMITREQUIREMENT "___.___"_.SAMPLEMEASUREMENT _/__"o_PERMITREQUIREMENT AI__________ ___NAMTITLE I certify under penalty of law that tis document and all attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER atirection or supervision in accordance witt a system designed to assure t hai qualifiedl property gather and evaluate the informttion submitted. Based on my inqury of the person orLawrence M. Coyle persons who manage the system. or those Persons directly responsible for gathering the inml 08 12 22the information submitted is, to t he best of my knowledge and be lef, true. accurate, and compi e. I IGNAT OF PRINCIPLEPlant Manager am aware that there are significant penalties lor submitting lalse infomation, includug the briy E I OFFICER OR AREA NUMBER YEAR MONTH DAY"pMEDGoPon E of line and imprisonment for knowing violatlons. ICOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OF1 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMITTEE NAME/ADDRESSNAME Exelon Generation Co.. LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RI. 53, Suite 84Braceville, IL 60407IL0048321PERMIT NUMBERI001 BDISCHARGE NUMBERMONITORING PERIODYEAR I MONTH I DAY I I YEAR I MONTH I DAYMAJOR(SUMR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT' *
- NO DISCHARGEFrom: 1 08 i 11 j 01 1Tol 08 1 1 30NOTE: Read inslructions fore cornletino this formOUANTITYOR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCYPARAMETER ______N. OF SAMPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS TYPEBOD. 5-DAY SAMPLE6.BOD SAMPL(0.57 1.10 26) 3.6 6.0 19) 0 240 DC(20 DEG. C) MEASUREMENT00310 1 0 0 PERMIT 19.5 39.0 30.0 60.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX 30 DAY AVG DAILY MAX MG/L WEEKLY COMP24PH SAMPLE -- --- 7.95 -- 8.10 12) 0 240 GAMEASUREMENT ...... ..... ....... _ .1__2)24_G00400 1 0 0 PERMIT 6.0 9.0EFFLUENT GROSS VALUE REQUIREMENT ...._._MINIMUM _ MAXIMUM SU WEEKLY GRABSOLIDS, TOTAL SAMPLESUSPENDEDLMEAME 0.62 1.16 (26) ........ 2.45 4.2 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 PERMIT 19.5 39.0 LBSIDY 30.0 60.0 MGIL WEEKLY COMP24EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX L 30 DAY AVG DAILY MAXFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MOD ----- DAILY CONTINSAMPLEMEASUREMENTPERMITREQUIREMENT .SAMPLEMEASUREMENTPERMIT*-REQUIREMENT "'SAMPLEMEASUREMENT... ":,NAMErrtTLE I cenity under penalty ol law that this document and all attachmtents were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER directco or supervision in accordance with a system designed to assure thal qualified personnelproperly gather and evaluate the information submitted. Based on my Inquiry of the person or 815 417-2000Lawrence M. Coyle persons who manage the system. or those persons directly responsible for gathering the inf- " T F PRINCIPLE 08 12 22the information submitted is. to the best ol my knowledge and befiel. true. accurate, and acoplete. ___ _ PRICIPEPlant Manager am aware thai there are significant penalties for submitting lalse information, including UTIVE FICER OR AREAN RTtWPED OA PRINTED of fine and imprisonment for knowing violations. UTHUMEEYEAR MONTH DAYUTORZE0 GET CODECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) OR PAGE IOF1 PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarsenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35'00 S. Rt. 53, Sute 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0048321 001 CPERMIT NUMBER DISCHARGE NUMBERI ,MONITORING PERIODFr:1 YEAR MONTH DAY IYEAR MONTH D3AYFrom OB 01 dTo: 108 11 30OCRO501MAJOR(SUBR 02)F -FINALRADWASTE TREATMENT SYSTEMEFFLUENT**'NODISCHARGENOTE: Read instructions belore complelin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS.'TOTAL SAMPLE0SOLIDS,. TOTALSAM-26) ........ 2.95 4.6 19) 0 240(1) CPSUSPENDED MEASUREMENT 1(.0 4.(00530 1 0 0 PERMIT .LBSDY 15.0 30.0EFFLUENT GROSS VALUE REQUIREMENT ---30 DAYAVG DAILY MAX MG/L WEEKLY COMPOSOIL AND GREASE SAMPLE ------ 126) 1.0 1.0 19) 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENT (6. .01(92G00550 1 0 0 PERMIT " " BSY 15.0 20.0 MGIL ONCE/ GRABEFFLUENT GROSS VALUE REQUIREMENT LB..-, 30 DAY AVG DAILY MAX I MONTH GRABFLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 050050 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX MGD "-- -.DAILY CONTINSAMPLEMEASUREMENTPERMITREQUIREMENT ISAMPLEMEASUREMENTPERMITREQUIREMENT *_-SAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTNAME/nTLE I certay under penalty ol taw that this document and al atltachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervision in accor cance with a system designed to assure that quabi iad personnel 0."_n-- propenry gather and evaluate the information submitted. Based on my inquiry of the person orLawrence M. Coyle persons who manage the system, or those persons directly responsible Ior gathering the unlonmt SI5 PICPE000 08 12 22te information submtitted is, to the best of my knowledge and bedepf. true. accurste. and complete I S T R ILPlant Manager am aware that there are significant penalties for submitting fase informtion. includingt R AREA NUMBER YEAR MONTH DAYTYPED OR PRI'tED of tine and imprisonment lot knowing violations. CYDACOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Retsfence all attachments hare)(I) Samples teken weekly, when discharging. No discharge week of 11/10/08.EPA Form 3320-1 (Rev 3/99) OR PAGE I OF 1 PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS. 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDESDISCHARGE MONITORING REPORT (DMR)IL0048321 001 DPERMIT NUMBER DISCHARGE NUMBERMONITORING PERIODYEAR MONTH DAY I EAR MONTH DAYFromi 08 I 01 ITo:_I 08 .I 30,I)OCRO501MAJOR(SUSR 02)F -FINALDEMINERAI.IZER REGENERANT WSTSEFFLUENT* * ' NO DISCHARGELJQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO FREQUENCY SAMPLEPARAMETER OF SMLAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX AN O TYPEUNITS ANALYSISSOLIDS, TOTAL SAMPLE --- --26) -----(26)< 0.75 < 1.0 (19) 0 240 DCSUSPENDED MEASUREMENT00530 1 0 0 PERMIT 15.0 30.0EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAXYFLOW, IN CONDUIT OR SAMPLEFLW NCNUTO APE 0.027 0.056 1 03) ...................... ...... 0 135 CNTHRU TREATMENT PLANT MEASUREMENT 050050 1 0 0 PERMIT REPORT REPORT MGD ----- DAILY CONTINEFFLUENT GROSS VALUE REQUIREMENT 30 DAY-AVG DAILY MAXSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENTSAMPLEMEASUREMENTPERMITREQUIREMENT ._._'_,_.__,-"__.__SAMPLEMEASUREMENTPERLMIT " l"'l-i. ~ ~REQUI ,RE',MENT. l..*- .." ".,' " "NAMErnILE I certity under penafty of law that this document and as attachments were prepared under my -TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direction or supervision in accordance with a system designed to assure that qualifed personnel I______property gather and evaluate the infonnation submitted Based on my inquiry of the person orLawrence M. Coyle persons who manage the system, or those persons directly responsible fo gathering the P I 815 417-2000 E8 12 22the itlorrnaton submitted is. to the best of my knowledge and betief. true, accurate, and comptete I _TPN LPlant Manager am aware that there are significant penalties Ire submitting false inrromnaton, ncluding the = I EXECU'rE O ICER OR AREA NUMBER YEAR MONTH DAYrr.PE-O ow tRItt ut tine and rrprisonmem (or knowing violations. AUTORIZE AGENTMOCOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OFI1ý C" °NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMITTEE NAME/ADDRESSNAME Exeton Generation Co., LLCADDRESS 4300 Winfield RoadWarrenvitle, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Bracevifle, IL 60407MAJORIL0048321PERMIT NUMBERi001 0I (SUBA 02)I DISCHARGE NUMBERIIMONITORING PERIODF- FINALCOOUNG POND BLOWOOWN LINEEFFLUENT.NO OISCHARGE LI" "I YEAR IMONTH IDAYI I YEAR I MONTH I DAY IlFrom: I 08 111 1 01 I To: 1 08 1 11 I 30 I.ýýc M ý; -0 1. _1 .QUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPETEMPERATURE, WATER SAMPLE 71.. ......... 1(15) 0135 CNDEG. FAHRENHEIT MEASUREMENT00011 1 0 0 PERMIT REPORTEFFLUENT GROSS VALUE REQUIREMENT ...._DAILY MAX DEG. F DAILY CONTINPH MEASUREMENT --- 882 ..... 8.98 (12) 0 240 GR00400 1 0 0 PERMIT 6.0 9.0 WEFFLUENT GROSS VALUE REQUIREMENT __ :_"___MINIMUM "__-"- MAXIMUM SUWEEKLY GRASOXIDANTS, TOTAL SAMPLE.E.S...M.NT(26) ,,----- 0.03 (19) 0 285 GRRESIDUAL MEASUREMENT34044 1 0 1 -PERMIT L 0.05 ONCE/EFFLUENT GROSS VALUE REQUIREMENT --- LBS/DY DAILY MAX MG/L MONTH GRABFLOW, IN CONDUIT OR SAMPLE ,, ,,, ,,THRU TREATMENT PLANT MEASUREMENT50050 1 0 0 PERMIT REPORT REPORTEFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX DAILY CONTINCHLORINE, TOTAL SAMPLEMEASUREMENT.... (26) ...N/ACI) (19) -- 500 OTRESIDUAL MEASUREMENT50060 1 0 0 *PERLMIT " B/Y0.2 GLONCE/ RAEFFLUENT GROSS VALUE REQUIREMENT L ,SD DAILY MAX MONTH GRA.SAMPLECHLORINATION DURATION MEASUREMENT ........( 14) 0 135 MS78739 1 0 0 PERMIT REPORT SEEEFFLUENT GROSS VALUE REQUIREMENT '_" " _DAILY MAX PERMITSAMPLECHLORINE USAGE MEASUREMENT 2266 2358 ,26) ...... (19) 0 135 MS81400 1 0 0 PERMIT REPORT REPORT' .* SEEEFFLUENT GROSS VALUE REQUIREMENT MO AVG DAILY MAX _BS_ ..__..PERMIT._,,NAMEMITLE I certiy under penalty of law that this docurnent and alt attachments were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICES direction or supervision in accordance with a system designed to assure that qualfied personnel_property gather and evaluate the informration submitted. Based on my inquiry a1 the person orLawrence M. Coyle persons who manage the System, or those persons directly responsible lor gathering %a irl 815 417-2000 o8 12 22the information submitted is. to the best ot my knowledge and belief, true, accurate, and S. I A OF PRINCIPLEPlant Manager am aware that there are significant penalties for subritting false information. including the y CUTIV OFFICER OR AREA NUMBER YER MONTH1"PED OR PRINTED lt line and imprisonment for knowing violations. -EAUTHORRED AGENT CODECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromide Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3/99) DR PAGE I OF 1 ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 60407Date: November 28, 2008Time: 11:20 a.m.0.080.07X00.06U, E*i 0.05I-0.04<0.039 0 5510152025Time (Minutes)The Unit 1 and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.November Bromine Usage: 410 lbs. Monthly Average558 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mo./I,Lawrence M. Coyfe, /04nt ManagerBraidwood Nuclear taWon ExektnaExelon Generation Company, LLC www.exeloncorp.comBraidwood Station35900 South Route 53, Suite 84Bracevilie, IL 60407-9619January 23, 2009BW090012Illinois Environmental Protection AgencyDivision of Water Pollution ControlCompliance Assurance Section1021 North Grand Avenue EastSpringfield, Illinois 62794-9276Attention: Compliance Assurance Section
Subject:
Monthly Discharge Monitoring ReportEnclosed please find the December 2008 Discharge Monitoring Report for Braidwood Stationas required by our Permit #1L0048321.If you have any questions regarding the above, please contact Raymond Hall at (815) 417-3203.RespectfuLawrence M. CoylePlant ManagerBraidwood Generating StationEnclosure 0PERMITTEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Bracevilte, IL 604070NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)IL0048321 001 APERMIT NUMBER DISCHARGE NUMBERf MONITORING PERIODFR 0 MONTH DAY I I YEAR MONTH DAYFrm:I 8 I12 01 To:1 08 12 31OCRO501MAJOR(SUBR 02)F -FINALWASTEWATER TREATMENT PLANTEFFLUENT.." NO DISCHARGEaNOTE: Read instructions before competino iis formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO F MPLEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS, TOTAL SAMPLE 26) 1(22)2.6-19).019202.6SUSPENDED MEASUREMENT _ __ ()1_2(9 04D-05 1 -.EMT 15.0 93.~00530 1 0 0 PERMIT .LBS/DY -MG/L .WEEKLY COMP24EFFLUENT GROSS VALUE REQUIREMENT .30 DAY AVG. DAY MAXOIL AND GREASE SAMPLE 2.88..(2)28 88 (19) 0 285 GR(SOXHLET EXTR.) TOT MEASUREMENT ._,0055 1 0 50 -z2D 1. ONCEJEFFLUENT GROSS VALUE -REQUIREMENT: *.. '"DAY-AVG DAILYMAX MGNLGRFLOW. IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0081 0106 (03) 0 135 TM50050 1 0 0 -PERMIT REPORT ".-8EFIT, GD '"M i .EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG DAILY MAX TOTAD_ DAILY 24__SAMPLEMEASUREMENT-REQUIREMENT.1' .... Z."____ _____ ___SAMPLEMEASUREMENT-.PERMIT -..REQUI.EMENT' _ ..SAMPLEMEASUREMENT"* .- PERM IT -. -' =" ,, --.-.-.."- :'.". ...."..i : ': -' .-: -.. -, .: .. ....-.. ...............______________REQUIREMENT -______________ __________ ____SAMPLEMEASUREMENT_______________.REQUIREMENT'- ____NAME/TILE I certify uner penalty of law tIat toe documennt and at atachmetsa were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFCER. direction or supervison in accotdance with a systemn feaoned to assure #%at quaTEiLdEPOLropertywrerandeteeinfonmam submitted Based an my imxpm of a* peson or / 815 417-2091Lawrence M. Coyle persans who manage the system, or those persons directly resporaible for gathering the i23fth information stllrtted is, to the beat of my lItnowtedge and beget, true, accurate, ad .NAT E OF INCIPLE____Plant Manager am aware oat the are &gndfcam penares for suLOM EXEC E 0 ICER OR AREA NUMBER YEAR MONTH DAYP~wrandvi prisand d for WnoMMn violatios. CDTYPED OR Pl~Ea~D IraEt~t1dttYktef~AUTt RIZZEYAGENT COD- __ _______COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Forem 3320-1 (Rev 3/99) ODR PAGE 1OF NATIONAL POLLUTANT DISCHARGE EUMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCRO501PERMITrEE NAMEIADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. Rt. 53, Suite 84Braceville, IL 60407IL0048321PEMTNUMBiER001 BDISCHARGE NUMBERMAJOR(SUBR 02)F -FINALSEWAGE TREATMENT PLANTEFFLUENT.. NO DISCHARGE ri°'F11 MONITORING PERIODFrom: 08 12 01 /To:I 08 12 31NOTE: Read instructions fhore completin this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSISBOD, 5-DAY SAMPLE 7BD -ASAPE1.03 2-31 (26) 3.9 7.8 (19) 0 240 DC(20 DEG. C) MEASUREMENT00310 1 00 .ErMI 19.5- 39.0 30.0.' '.-60.0EFFLUENT GROSS VALUE REQUIREMENT :3DDAYAVG'. DAILY MAX ..S/DY 30 DAY AVG DAILY MAX MG/L .YWEELY COMP24PH MEASUREMENT -7.48 7.85 (12) 0 240 GR00400 1 0 0 ~ -..-PERMIT- -0S-EKY GAEFFLUENT GROSS VALUE .REQUIREMENT .-.__. ."-T MIN.IMU S.-"" .". MA."M U ,. ,: .WEEKLY _ __U1SOLIDS, TOTAL SAMPLESUSPENDEALMEAME 0.70 0.90 (26) 2.73 4.0 (19) 0 240 DCSUSPENDED MEASUREMENT005.01. 1 PERM -196 --o 30.0 '0.0EFFLUENT GROSS VALUE 'REQUIREMENT.. .3 DAY AVG DAILY MAX.'._ -: --" 30 DAY-AVG DAILY MAX /,. M .-. WEEKLY COMP24,..FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.022 0.044 (03) .... 0 135 CN500150 1 0 0 --PEMIT .REPORT -REPORT --." .; -.---AEFFLUENT GROSS VALUE REQUIRENT " 30DbAY AVd: -DAILY MAX-- '- MSAMPLEMEASUREMENTPE M I ... .. , .. --." -" "" ..SAMPLEMEASUREMENTREQURE EN .* ,d.:-* 'SAMPLEMEASUREMENTNAMEMTTILJE I certiy under penalty of law dimal ts docimme and al atacmene were prepared under myPR(NCIPAL EXacunvE OFFCER -y~~to ~ ~ pre TELEPHONE DATEPRINCPAL EECUTIE OF irction or supervision in accordfance with a system desiged to assure toa (luahow personneiperty gather and evaluate the intormation subm.itted Based an my nqttry ofthePeer 2000Lawrence M. Coyle perso who manage the system, or the persons directly respetsitile tor 4a0heen t81 417e 01the information sulimitted is. to am best of my imowledge and beief. mire, accurate, and e IN4. PRINCIPLEPlant Manager am aware that ore are sagrutct penalies for submittig false ttotnona rut,:kg tgt eWCUTIE (FICERA OR AREA NUMBER YEAR MONTH DAYo fine and imprisonment for Wowing violations. AODECOMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)EPA Form 3320-1 (Rev 3/99) DR PAGEOF I SNATIONAL POLLUTANT DISCHARGE EUMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCR0501PERMIT'EE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53, Suite 84Braceville, IL 60407IL0048321PERMI NUMBER1 001 oCiDISCHARGE NUMBER-I 0 MONITORING PERIOD IYEAR MO ! DAY I YER M IMoN D IMAJOR(SUBR 02)F- FINALRADWASTE TREATMENT SYSTEMEFFLUENT-NO DISCHARGE E "From: I .I 12 I 01 I To:I 8 I 12 I 31 1NOTE: Read instructions eore compIetino this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION FREQUENCYPARAMETER .._N_._OF SAMPOEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPESOLIDS, TOTAL SAMPLE ,9SUSPENDED MEASUREMENT 2.20 32 (19) 0 240(1) CP00530.... .0 --15.0 "..". .ERM30.0 'EELY..WEKLEFFLUENT GROSS VALUE REQUIREMENT .."_ 3* -.30.DAY"AVG, ,. DAILY-MAX --.-OIL AND GREASE SAMPLE 2012(SOXHLET EXTR.) TOT MEASUREMENT 1.0 1.0 (19) 0 285 GR00550 1 0 0 PERMIT -_ "_.. -"*'5. '"2.0-.-ONC"IEFFLUENT GROSS VALUE REQUIREMENT*--,-LBS/DY .. 306 DAY-A0G AILY1 M-A.X M'G '"FLOW, IN CONDUIT OR SAMPLE THRU TREATMENT PLANT MEASUREMENT 001 001 (03) ...... 0 136 CN50050 1 0 0 .PERMIT REPORT, ORT MGD RENLRT " 7 "O','"EFFLUENT GROSS VALUE "REQUIREMENT. '30 DAY AVG DAILY MAX. MGD... "....... DAIL.' CT.NSAMPLEMEASUREMENT,.,PERMIT. .. ..REQUIREMENT -_ _ _ _SAMPLEMEASUREMENT _____ _____REQUIREMENT __________________ _____SAMPLEMEASUREMENT..PERMIT -_____________REQUIREMENTA 7___ ___ ______SAMPLEMEASUREMENTREQUIREMENT. -.-...,'" : : I --.NAM.EITTLE I cetdy u-der penatly of law that this document and all attchments were prepared Lader my TELEPHONE DATEPRINCIPAL EXECUThVE OFFICER drection or supervision in acconrance with a system designed to assure that qualfied personnelproperty gather and evaluate the rnfonnatin submned. Based on my aiqiw of the persmon or 8 417-20.Lawrence M. Coyle persons who manage the system, or those persorns rectly responsire for gathering t 001m 'the inormation sunatteod is. to the best of my knovAedge and bert, te. acrute. arid e TURE F.PRINCIPLEPlant Manager am aware that there are sigrufwant penaflies for submt= gfalse ltuon. tXCUTIVE FF1CER OR AREA NUMBER YEAR MONTH DAYrPED OR FPvý'Mý o. tme and imprtsonment for knowing violations. AUTHOR D AGENT CODE -COMMENTS AND EXPLANATION OF ANY VIOLAONS (Reference all aDacNmeT O here)(1) Samples taken weekly, when discharging. No discharge weeks of 12/1, 12/22 and 12/29.EPA Form 3320-1 (Rev 3/99) DR PAGE 1 OFI NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)OCR0501PERMITTEE NAMEIADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfietd RoadWarrenville, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION 35100 S. RL 53. Suite 84Bracaville, IL 60407IL0048321PERMIT NUMBER001 0DISCHARGE NUMBERMONITORING PERIODYEAR IMONTH -DAY IYEAR IMONTH (DAY IMAJOR(SUBR 02)F -FINALDEMINERALIZER REGENERANT WSTSEFFLUENT* *
- NO DISCHARGE j "JFrom: I 08 I 12 I 01 I To:1 08 I 12 I31 II I I iNOTE: Read instructions efore cornletin this formPARAETE QUANTITY OR LOADING QUANTITY OR CONCENTRATION No. FREQUENCY SAMPLEPARAMETER..___-__ "--___--___ENO OF SAMPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS ANALYSIS TYPESUSPENDED MEASUREMENT (26) 0.94 2.7 (19) 0 240 DC00530 1 0 0 _ PERMIT- 15.0 -' 30.0 .EFFLUENT GROSS VALUE REQUIREMENT -"- ' 30 DAYAVG .MA MG/L .WEEKLY " COMP8"FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 0.029 0071 103) 0 135 CN50050 1 0 0 PERMIT-:- REPORT. REPORT. .EFFLUENT GROSS VALUE EQUIREMENT -30 DAY.AVG -..MD.':.DAILY ";LTI: D MMGD .-..-...... ......'..,"."-D,..."" ,,,,,,N-SAMPLEMEASUREMENT _____ ______________________-ERMIT._______________REQUIREMENT -SAMPLEMEASUREMENT_____--PERMIT.---_______________REQUIREMENT_____________________SAMPLEMEASUREMENT______ _________________PERMIT_ _ _ _ _ ~~REQUIREMENT_ __ _ _SAMPLEMEASUREMENT___________ _____*'PERMITr____________REQUIREMENT. .____......$..-SAMPLEMEASUREMENTMEAUREMENT -AMfIIE I certify under penalty of law that this doumoent and all attacttvnerts were prepared wodw my TLPOEDTPRINCIPAL EXECUTIVE OFFICER directionr or supennsior in accordance wan a system desmqned to avuse tha quakImed _______ TELEPHONE______DATE_prPerty gathe arid evaluate the infomiation subtirtted. Based an my brqtary of the peaf or 815 417-2000Lawrence M. Coyle persons who manage the system, or .thse persons. directly resoisibe for gathenriga ' .omaton, 09 01 23t ,.b.ted is, to .the best of my wowiedge ard belm. true. acurate, co IrA IGNIAT URE PRI CPE 23Plant Manager am wr ht hr r swiagrnfor penatides for autlrdsn false isomalon.- _0odi HO5 EE OFFIC R OR AREA NUMBER YEAR MONTH DAYof fine and imprlonslient for IoWirig violations. A JT ZED 5EN corfEE CR. MU ... ... do. .. .mom AUH IZD F T C DCOumMNT AND EX(PLANA-noN 5F ANY VIOLATIONS (Retetwnau all attachmnents here)EPA Form 3320-1 (Rev 3/99) DR PAGLIOF 1aSML NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)DISCHARGE MONITORING REPORT (DMR)PERMITrEE NAME/ADDRESSNAME Exelon Generation Co., LLCADDRESS 4300 Winfield RoadWarrenvilie, IL 60555FACILITY Braidwood Nuclear Power StationLOCATION
- 35100 S. Rt 53. Suite 84Braceville, IL 60407IL0048321PERMIT NUMBER001 0 1DISCHARGE NUMBEROCRO501MAJOR(SUBR 02)F -FINALCOOLING POND BLOWDOWN LINEEFFLUENT... NO DISCHARGE ED.MONITORING PERIODYEAR MONTH DAY I YEAR MONTH DAYFrom: 08 12 01 d To: 1 08 [ 12 I 31 [NOTE: Read instructions tefore comoletno this formQUANTITY OR LOADING QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLEPARAMETER OF TYPEAVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS EX ANALYSIS TYPETEMPERATURE, WATER SAMPLEDEG. FAHRENHEIT MEASUREMENT00011 1 0 0 .PERMIT:. ___. REPORT .-MEFFLUENT GROSS VALUE REQUIIEMENTr- -, __ ,:_ .--.DAILY MAX ..F .DI .Co.. ..PHSAMPLE 8.61 8.93 (12) 0 240 GRMEASUREMENT00400100.-EIT .1- ..- -.- 60.9"EFFLUENT GROSS VALUE REQU..E...T- : SU ELGRABOXIDANTS, TOTAL SAMPLERESIDUAL MEASUREMENT (26) <-0.03 (19) 0 285 GR34044 1 0 1 .".PERMIT v3404401 ----- LB/DY. 0.0 ONCE1 -aEFFLUENT GROSS VALUE .REQUIREMENT. '- '-_AI MON. ,_,_"FLOW, IN CONDUIT OR SAMPLETHRU TREATMENT PLANT MEASUREMENT 35.66 36.94 (03) -0 135 CNPRIR50' -0 M ---- ".'.-".DALY ....E- CONT..EFFLUENT GROSS VALUE REQUIREMENT 30 DAY AVG "DAILYMAX .--..."* 'CHLORINE, TOTAL SAMPLE 2_19WRESIDUAL MEASUREMENT (26 N/A(1) (19) --- 500 OT50060 1 0 0 PERMIT" 2. -LB" DY"..D.LY.-"-..ONAEA-. GRA"EFFLUENT GROSS VALUE .REQUIREMENT .'_ ., ". ,LBS/DY e. ., , , ,, .... ' ,..SAMPLECHLORINATION DURATION MEASUREMENT -- -110 (14) 0 135 MS78739 1 0 0 PERMIT .' .REPORT.SEE". -"EFFLUENT GROSS VALUE --DA7LY MAX MINUTES --.. "PERTk _ _..,'.CHLOINE SAGESAMPLECHLORINE USAGE MEASUREMENT 1821 2285 (26) ---.... (19) 0 135 MS81400 1 0 0 7. PERMIT.. .-REPORT-. REPORT L:S/DY '"EFFLUENT GROSS VALUE -REQUIREMENT ---MO AVG. DAILYMAX: 'PER/YT"_"__.NAWrTtTLE I cerltfy under penalty of law tlha this docurmerd and all attacmrenlas were prepared under my TELEPHONE DATEPRINCIPAL EXECUTIVE OFFICER direcion or supmeision m accordance with a system designed to assure thati quairied personneTPropedy gather and evabiae the lnormabon subrted. Based on My InrAWY- Oi the PersonLawrence M. Coyte persons who manage the system. or those pemons drecty responsebe for gathering ther-815 417-2000 0923the mformation suitnutled is. to the best of my Icowle and betef, true. accurate, and g*Oee ,,AIGNATURE.,F IN(IPLEPlant Manager vn theore are sigrificant penasies for suitit false inomiaion. inctuding the EXEC OFFI ER OR AREA NUMBER YEAR MONTH DAY___________ _________________________ UHRZED ENT CODJ___ _________COMMENTS AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)(1) Bromine Biocide used -Reported as Total Residual Oxidants (Attachment 1)EPA Form 3320-1 (Rev 3/99) DR PAGE 1-OFI ATTACHMENT 1NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEMDISCHARGE MONITORING REPORTExelon GenerationBraidwood Nuclear Power Station35100 South Rt. 53 Suite 84Braceville, Illinois 604070.080.07CuV@ 0.06* E0.05I-Date: December 4, 2008Time: 1:35 p.m.0.04<0.0210Time (Minutes)The Unit I and Unit 2 main cooling condensers will be routinely treated at approximately1:00 a.m. and 10:00 a.m. respectively whenever the circulating water systems areoperating.December Bromine Usage: 471 lbs. Monthly Average734 lbs. Daily MaximumTotal Residual Oxidant mean concentration -<0.03 mg/I 1.Managerion
}}