ML20100M407
| ML20100M407 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 02/27/1996 |
| From: | Borst F PUBLIC SERVICE CO. OF COLORADO |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| P-96015, NUDOCS 9603050335 | |
| Download: ML20100M407 (1) | |
Text
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16805 WCR 191/2; Platteville, Colorado 80651 i
February 27,1996 Fort St. Vrain P-96015
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U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Attention:
Mr. Michael F. Weber, Chief Decommissioning and Regulatory 1
Issues Branch Docket No. 50-267
REFERENCE:
PSCo letter, Fisher to Weber, dated June 15,1995 (P-95067)
" Proposed Amendment to Fort St. Vrain NPDES Permit"
SUBJECT:
Amendment to Fort St. Vrain NPDFS Pennit
Dear Mr. Weber:
Attached for your information is a copy of an amendment to the Fort St. Vrain (FSV)
National Pollutant Discharge Elimination System (NPDES) Permit, Wastewater Discharge Permit No. CO-0001121. This amendment was requested from the Colorado Department of Public Health and Environment (CDPHE) to support decommissioning and repowering activities, as identified in the referenced letter. The CDPHE approved this amendment as a minor modification, which became effective on September 11, 1995.
Tte attached amendment to the FSV NPDES Permit is provided to the NRC in accordance with Section 3.2.c of the FSV Non-Radiological Technical Specifications, Appendix B to Facility Operating License No. DPR-34. Public Service Company of Colorado acknowledges that this amendment was not provided within 30 days as required, due to an oversight, and actions have been taken to prevent future delayed j
submittals. If you have any questions regarding this information, please contact Mr. M.
H. Holmes at (303) 620-1701.
Sincerely,-
6USiddu Y
Frederic J. Borst Decommissioning Program Director 9603050335 960227
' PDR ADOCK 05000267 i
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9 P-96015 February 27,1996 Page 2 Attachment FJB/SWC cc:
Regional Administrator, Region IV Mr. Robert M. Quillin, Director Radiation Control Division Colorado Department of Public Health and Environment
S~AN 0;: CO10MJO 1
Roy Romer. Covernor Pani Shwayder. Acung Lxecuuve Okector
' Dedcated to pmgecung and imptowng the health and ennronment of the people of Colorado l
l 4300 Cherry Creek Dr.5.
Laboratory Building l
Derwer, Colorado 802221530 421o E.11th Avenue i
Phone (303) 692 2000 Denver. Colorado 80220 37%
0 03) 691-4700 Colorado I
ofPublicHealdi September iI,1995 and Envimament Public Service-Ft. St. Vrain Alan Albrandt, Unit Manager, Environmental Programs P.O. Box 840 (122517th Street, Suite 2000)
Denver, CO 80201 CERTIFIED MAIL NO:
P 533 512 304 RE:
Amended Permit, Colorado Wastewater Discharge Permit System Permit Number: CO-000ll21, Public Service Company of Colorado
Dear Mr. Albrandt:
Enclosed please find a copy of the amended pages of your existing permit which was issued under the Colorado Water Quality Control Act. Your discharge permit requires that specific actions be performed at designated times. You are legally obligated to comply with all terms and conditions of your permit including these changes. It is especially important to note the " EFFECTIVE DATE", not the
" AMENDED DATE", located at the bottom of page two of your rationale. It is illegal to discharge per the new conditions until the effective date.
Please read the amended pages of the permit and if you have any questions contact this office at 692-3590.
Sincerely, g(obert J. Shu h
hief Permits and orcement Section Water Quality Control Division ec: Permits Section, Environmental Protection Agency Regional Council of Government Local County Health Department District Engineer, Field Support Section, WQCD Derald I.ang, Field Support Section. WQCD Permit Drafter, Permits and Enforcement Section, WQCD i
Enclosure PJS/dc i
1 l
COLORADO DISCHARGE PERMITSYSTEM (CDPS)
AMENDMENTNO. 5 - RATIONALE PUBLIC SERVICE COMPANYOF COLORADO
{
FORTST. VRAINSTATION PERMITNO. CO-0001121, WELD COUNTY 1.
TYPE OFPERMIT:
Industrial-Minor Modsfcation 11.
FACILITYINFORMATION:
A.
Faciuty Type Category 8. Subcategory 4 - Powr Plants: Process Waterfrom 1.0 to and Fee Category:
4.999 MGD - Currentfee $4568 per yearfor the process related permit; and Category 24, Subcategory 2 - IndividualIndustrial Storm Water Permits: Ten Acres or More - Currentfee $300/ year per CRS 25-8-502.
Totalfee = $4868/ year.
B.
SIC No.:
4911 (Electric Services)
C.
Legal Canteet:
Alan Albrandt, Unit Manager, Environmental Programs, Public Service Conpany of Colorado P.O. Box 840 (122517th Street, Suite 2000)
Denwr, CO 80201 (303)+294-2978 D.
Facshty Contacts
- Alan Albrandt, Unit Manager, Environmental Programs (See abovefor address and phone number)
Mary Fisher, Decommissioning Program Director PSC Fort St. Vrain Station (303)+620-1009 i
E.
Facility Location:
The Public Service Company Fort Saint Vrain Station is located approximately 3.5 miles nonhwest of Platteville, Colorado in Section 3.
T3N, R67W: and Sections 34 and 35, T4N, R67W; 6th Principal Meridian, as shown infgure 1 and 2 of the perrmjt.
t' F.
Discharge Points:
See renewal rationalefor thisfacilityfor description of all the outfalls 1
(discharge points 001A, 0018, 002, 003, 004, 005, 006. 007, and monitoring point 008) at this facility.
Outfall 001A - the outfall 001 overflowfrom thefarm pond at the Parshallfiume, which is prior to entering the South Platte River, as shown infgure 3 of the permit.
G.
Facshty Flows:
Ihefollowingflowsfor 001A are unchangedfrom the previous rationale.
001A 2.065 MGD (averagefacilityflow)
=
3.7 MGD (mawnum flow) i
=
00!A 30 Day Average Flow Range: 1.03 - 2.88 MGD 001A Daily Mawnum Flow Range: 1.280 - 5.250 MGD (from Discharge Monitoring Reponsfrom 1-194 through 6-301995)
See prenous renewal rationalefor the other dischargeflows.
CO ORADO DEPARTMENTOF PUBLIC HEALTH AND ENVIRONMENT, Water Quality Ccatrol Division Rationale, Amendment No. 5 Page 2 Permit No. CO-000ll21 til.
RECEinNG STREAM:
Outfalls 001A and 003 go to the South Platte River (segment 1, Middle South Platte River subbasin); 001B is located in the Goosequiu Ditch Stub, which then goes to Goosequiu Ditch, which is tributary to the South Platte Rinr (Goosequin Ditch is in segment 3, Middle South Platte Rinr subbasin); and outfalls 002, 004, and 005 go to St. Vrain Creek (segment 3 St. Vrain Creek subbasin). Outfaus 006 and 007 are internal disdarge pomts which do not discharge direaty to any surface waters. Dete two internal outfalls enntually contribute to discharger at 001A, 001B, and/or 002. See the previous renewal rationale (February 8,1993)forfunher detaus.
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IV, PURPOSE OF AMENDMENT:
his amendment includes details of some of the more sigmpcant modspcatums to the Fon St. Vinin CDPS permit whid are needed to suppon decommissioning and repowring activitier at thisfaality. Dese changer as part of the Phase 1A aaivities arefunher discussed in thefollowing section.
V.
DISCUSSION OF AMENDMENT:
In a letter dated May 15,1995, Public Service Conpany of Colorado (PSC) submitted a summary ofmore i
sigmpcant upcoming danges to the Fon St. Vrain stanon which are needed to suppon dew
- '?? - _4 and repowenng aaivities at thisfacility. Dese activitier were previously discussed in a meetmg betwem PmMic Service Conpany and the State of Colorado Water Qualtty ControlDivision (WQW) on Mard 7,1995, and later summarized in a letterpom PSC dated March 10,1995. Defollowing paragraphs indicate the danger to the i
facility that wiu be included in Phase IA.
As has been previously indicated, the nuclear reaaor and associatedpower generatmg equipmat at ne Fort St.
Vrain Power Plant (FSV) have been shutdown since 1989, and the plant has been in the pmcess of i
decommissioning since 1991. Work is now underway to repower this plant using two nanual gaspred Combusnon Turbines (CT's) and two Heat Reconry Steam Generators (HRSG's) in a combined cycle operation, with the equipment to be instaued in three phases (Phase IA,1B, and 2). GeneraHy Phase 1A inwiver constmaion and instaRation of thefrst Combustion Turbine (CT) unit (6-95 through 4-96) and Solar System (8-95 drough 6-97);
Phase IB inwives construction and installation of theprst Heat Recovery Steam Generator (HRSG) (2-97 through 5-98); and Phase 2 includes construction and installation of the second HRSG and the second CT units (2-98 through 5-99). Funker details ofspeapc items in Phases IA, IB, and 2 were included in handout sheetsfrom the i
i meeting of March 7,1995 and in the letter of March 10,1995; this information is included in the permitfle.
Disfollowing amendment discussion addresses only those changes resultingfrom the construction and operation of Phase 1A andfrom the completion of decommissioning; Phase 1A installs theprst CT only. Construction commenced on June 1,1995, with processpows and pre-operational testing to stan January 2,1996. Commercial operation is sdeduledfor April 30.1996.
lE New water quauty control equipment which wiR be installed to suppon the repowering project includet:
I
- 1) installation of an 'oiUwater" (0/W) separator whid wiH receive drainagefrom the CTarea drams and the main auxaiary and generator step up transformer area drains. De separator wiH han a arpaaty of 20,000 gaRont of oil and water, and is designed to meet the limit of 10 mg/l of oil and grease in the eptuent.
r Manmum dischargefrom the OIW separator is estimated to be 2,000 gauons per day (gpd) and wiu be routed to a wastenater collecnon sunp. (Note: All transformers in this area are cemped Non PCB by the l
l.
rnanufacturer.)
4
- 2) Instauation of a 'wartewater co!!"i= sunp' with a manmum aspaaty of 6,400 gauont, and an estimated maximum disdarge rate of 2,000 gpd. Wattewater dischargedfrom the sump will be routed to the north yard drains where it wiU be combme with service water cooling tower blowdown and sewage traannat eBluent prior to discharge to esther outfan 001A or 002.
te-n
COLOR 4DO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT, Water Quakty Ccntrol Division
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Rationale, Amendment No. S Page 3 Permut No. CO-000!121
[
V.
DISCUSSION F AMENDMENT: (Cont.)
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- 3) Installation of a "conpressor msk skid" and a 2.000 gauon "washwater holding tank". De conpressor l
- wash skid willprovide a high pressure msk of the turbine blades utilizing demineralized water and l
l detergent to remove combustion residue introducedfrom the natural gas and combustion air. Discharge from the wshwater holding tank is estimated to aurage 200 gpd and will be routed the ' South emperation i
Pond'.
Public Service Conpany of Colorado has inspected the South emperation pond liner integrity. Dit inspection and thefoHow-up report unfying the liner integrity has been submstted to the WQCD.
}
Additional changa whids may impact water usage and discharge rates include:
- 1) A decrease in service water cooling wagefor reactor building equipment due to decomnusssoning.
Commenesng on approximately January 2,1996, a service weer cooling blowdown rate of appronunately 4,000 gpd wiu be occurring to support cooling of the CT. De overaR net efect of these tw changes i
should not modsfy the previous renewal rationale, on page 6, of the FSV discharge permit, whids indicated a i
mazunum blowdown rate of 25,000 gpdfor the service wter cooling tower.
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- 2) ne Nuclear Regulatory Commission (NRC) licensing reqmrementfor the 1,100 gym bypass water during radionain liqmd waste discharger, wiu remann in efret unta tenmnation of the license by the NRC.
Presently, it is anticipated that this licensing requirement wiR by cancelled by the third quarter of1996.
- 3) Remuting of the Reactor Building Sunp (RBS) to the Turbine Buddmg Sung (TBS), at the conpledon of l
j deconumssionmg, to acconunodate groundwater ingress. De amount ofgroundwater ingress and therefore l
theflow ratesfrom this discharge can not be determined at this time. As agreed to in the meeting of March 7,1995, PSC wiR submit a copy of the radsological analysis of this groundwater prior to rerouang this 1
dischargeflowpath.
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- 4) Outfau 007 (the efluentfrom the Sewage Treatment Plant) flow rates should remainfairly constant due to an influx of repowering personnel, with a simultaneous decrease in decommissioning personnel.
Exceptfor the detergent to be used in the CT compressor wash skid, no new chemicals will be introduced into the l
facility process waters. Copies of the Material Safety Data Sheets (MSDS) for representative CT washwter l
detergents were attached to the letter of May 13.1995.
I Also attached to the PSC letter of May 15,1995 is a copy of the mass balance processflow diagram, the design nier analysis data, and the rationale used to prepare the design water analysis. De design water analysis results are based upon analysis performed by PSC, Calgon and Nalco Chemical Companies, as weu as data provided by the WQCD. From a review of this data, the range of chemical constituents in some areas is extreme. De Carter Lake Treannent Plant win be the source of most of the water neededfor Phase 1A and isfairly consistent in quality. Howwr, the range of the water qualityfor the St. Vrain and South Platte riwr wters may be wriable.
Derefore. PSCplans to monitor the riversfor key parameters on a morefrequent basis and revise the water design analysis as addstional data becomes amilable.
1 l
Since the Combustion Turbine OiUWater Separator wiu be a new contributing source in the Fort St. Vrainfacility, this amendment mciudes sigmpcant changes; howewr, as later discussed, no public notice reqsarements are applicable, ne other more sigmpcant changes in the Pnase 1A activities han been included in the abon discussions of this amendment rationale. Other less sigmpcant changes han been summarized in the letterfrom PSC dated March 10,1995. Dese minor modupcations in pan include: a) instaRation of a pH control system for the Turbine Busidsng Sump; and b) suljkric acid / sodium hydroxide treatment in the Turbine Buddag Sunp and temporary reroutmg of the Nonk Yard draint. Forfunher detaus, see the letter dated March 10,1995.
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COLORADO DEPARTMENT OF PUBLIC HEALTR AND ENVIRONMENT, Water Quakty Control Division Rationale, Amendment No. S Page 4 Permit No. CO-0001121 V,
DISCUSSION OF AMENDMENT: (Cont.)
i ne Division has reeminated the applicable permit limitations as related to the calculatedfederal BPT/BATlimits.
i nefederallimits were recalculated to include the new contnbuting source of treated wastewaterfrom the l
Combustion Turbine, based upon the projected daily maxunum fow of 2000 gpd (or 0.002 MGD). With the i
addition of this new source which is assumed to also be under the low volume waste categoricallimits, au the sources were recakulated based upon the same assumptions as were used in Appendix A and in the ensting i
(1992/1993) renewalpermit rationale. De recalculations, which are summarized in Appendix B in the permitfle, l
l indicate no sigmpcant changesfrom the previous eni~'~%ns of Appendix A and the existing limitsfor outpus 001B and 002for TSS, Oil and Grease, TRC, Total Chromium, and Total Zinc.
Desefederallimits were also recalculated based upon the addition of the Combustion Turbine unit treated wastewater and an assumedplure deletion of the PCRV wastewater source. Presently, the PCRV nstemater source has been reduced to only a minimal amount of groundwter seepage; the exact amount of this senpage is not known. Bis additional reentuation, which is also included in Appendix B, again showed no sign $ cant changefrom the previously calculated numbers or the existing limitsfor outfaR 001B. nus, there has been no change in the permit limitations for these parameters at this time.
l
^ However, with thefuture addition of other contributing wastewater sources or additionalpowsfrom a Heat Reconry Steam Gineratorfor CT-1A and the second Combustion Turbine with its associated Heat Reconry Steam Generator, there Linutatums wiu need to be reeminated and may need to be redetermmed.
j Also, some water quauty data ws included in attachments to the amendment request letterfor certam of the contributing wastewater streams, as weH asfor background stream data (indicated as ' design concentratsonspr
+
l water analysis'). nis data was not used at this timefor thefederallimits recalculatsons, mainly because not ad of the data for the contributing wastewater sources included in Appendsx A and B were indicated. Also, with the later inclusion of additional contributing wastewater sources (suds as the second Combustion Turbine unit, the two Heat Recovery Steam Generators, and possibly the Main Cooling Tower Blowdown source), tids data may be more appropriate to include at that time and/or at the time of the nen permit renewal. De background stream data submitted win be considered at the time of the next permit renewal.
4 De only change that has been made in the permitfor this amendment is the addition offgure 8 on page if of 19.
Figure 8 shows the Water Mass Balance Diagram which was submitted as part of this permit amendment.
Since there have been no sigmpcant major modspcations to the permit (i.e., no change in permit limits or monitoring requirements), public notice requirements are not applicablefor this amendment. Bis minor i
modtpcation was reviewed by PSC, and some changes were made to the preceeding text by the Division on September 1,1995.
Don Holmer August 23,1995 Revised September I,1995 l
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- OUTPALLStetA WATER BRASS BALA80CE 3 CYCLES OF COffCENTRAYtOH Pierd Waeleaseter Dacharge 932 Te Soust Ptgittftsuer PHASE 14 NOTE: All flowrates are gleen les 1.000 gyd, esed are annual meerage dally Rows based on the assurnpdene IIsted herein.
5f tt!95 Rev 4 Amended 09/11/t Effective 09/11/95 t'- - - - -
.,cait No.:
CO-0001121 County: Wald AUTHORIZATION TO DISCHARGE UNDER THE COII)RADO DISCHARCE PERMIT SYSTEM In compliance with the provisions of the Colorado Water Quality Control Act, (25-8-101 et. seq., CRS, 1973 as amended) and the Federal Water Pollution Control Act, as amended (33 U.S.C. 1251 et, seq.; the "Act"),
PUBLIC SERVICE COMPANY OF COII)RADO is authorized to discharge from the Fort St. Vrain Station, located in Section 3, T3N, R67U; and Sections 34 and 35. T4N, R67W; 6th Principal Meridian, as shown in figure 1, to the South Platte River, St. Vrain Creek, and natural and man-made tributaries of these two streams, in accordance with effluent limitations, monitoring requirements and other conditions set forth in Part I, and II hereof. All discharges authorized herein shall be consistent with the terms and conditions of this permit.
The applicant may demand an adjudicatory hearing within thirty (30) days of the issuance of the final permit determination, per Regulation for the State Discharge Permit System 6.8.0 (1).
Should the applicant choose to contest any of the effluent limitations, monitoring requirements or other conditions contained herein, the applicant must comply with Section 24-4-104 CRS 1973 and the Regulation for the State Discharge Permit System.
Failure to contest any such effluent limitation, monitoring requirement, or other condition, constitutes consent to the condition by the Applicant.
1 This permit and the authorization to discharge shall expire at midnight, January 31, 1998.
Issued and Signed this 19 t hday of F' b r u a r y, 1993 CERTIFIED LETTERIntNNN COLORADO DEPARTMENT OF HEALTH DAE SIGNED A4 #93 '
gag /U6 EFFECTIVE DE J. David Holm, Director
- /
1 Water Quality Control Division Amended 06/30/93 Effective 08/01/93 Amended 17/nt/o, Effective n.,, n,
,n, Corrected 12/23/93
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Amended ii/30/94 Effective 01/01/95 Amended 12/14/94 Ef fective 02 /01/95 Code:
i 1
Date:
2 84, revised 1-89 AMENDED 09/11/95 EFFECTIVE 09/11/95