ML061770135

VYNPS Application for NPDES Permit Renewal 2006-2010, No. VT0000264, September 29 2005

ML061770135
Person / Time
Site:	Vermont Yankee
Issue date:	09/29/2005
From:	Dewald L, Wender S Entergy Nuclear Operations
To:	Carpenter C Office of Nuclear Reactor Regulation, State of VT
References
Download: ML061770135 (129)

Text

Entergy Nudear Northeast Entey Nudear Operadons. b

-.. Vermont Yankee M2Govejwo Hunt Id.

E n tVernonm VT 05354 Tel 802-257-7711 29 September2005 Carol Carpenter Department of Environmental Conservation Wastewater Management Division Vermont Agency of Natural Resources 103 South Main Street - Sewing Building Waterbury, VT 05671-0405

Reference:

Vermont Yankee NPDES Permit No. VT0000264

Subject:

Application for NPDES Permit Renewal 2006-2010

Dear Carol,

This letter and the attached documents comprise Vermont Yankee's NPDES renewal application. As in past renewal we are requesting authorization to change some of the water treatment chemicals that are used in the service and circulating water systems.

Entergy is moving to a fleet-wide approach as industry continues to improve and change water treatment chemicals. Our current Permit expires on March 31, 2006. The following attachments are included in support of this application:

1. Attachment A: Permit application form WR-82 and Schedule B (WR82B) forms for discharge SN 001 through 012.

2. Attachment B: Requested changes to NPDES Permit.

3. Attachment C: New MSDS Sheets for Ondeo Nalco water treatment chemicals. All Entergy Stations are making an effort to switch over to treatment chemicals man e by Nalco. Vermont Yankee requests the ability to retain a backup treatment chemical in the event those manufactured by Nalco become unavailable. Nalco chemicals will be.used preferentially over the backup chemicals.

4. Attachment D: Expanded statistical analysis, adding the years 2003 and 2004 to the analysis presented in the 2004 316(a) Demonstration.

SEntergy

5. Attachment E: Updated Station flow diagram relative to NPDES discharge points.

Please note also that the renewed permit will need to include an extended submission schedule for Vermont Yankee's submission of a Proposal for Information Collection

("PIC") and a Comprehensive Demonstration Study ("CDS") as required by the CWA section 316(b) Phase H Rule. Entergy requested this extended submission schedule in a letter dated March 7, 2005, and Mr. Kooiker responded by letter on April 22, 2005 indicating that the PIC and CDS would not be required to be made a part of the NPDES renewal application and that a specific extended submission schedule would be considered as a part of the permit renewal process. Entergy previously has delivered entrainment and impingement data collections completed through the end of 2004 to the Environmental Advisory Committee. Entergy will deliver additional and more recent information, as described in the forthcoming PIC, as part of the CDS.

The 100.00 application fee is also enclosed..

Please do not hesitate to call if you require additional information.

Sincerely, Entergy Nuclear Vermont Yankee, LLC Lynn DeWald Samuel A. Wender, IV Environniental Specialist Chemistry Superintend ent

.0 V.S.A. Chapter 47 Permit Application Form WR-82 Page 2

10. Receiving Water for Indirect Discharges: Cannnir'nit River I I. ALL other Pretreatment and Direct Discharges: Using a separate serial number (SIN).

Identify each Independent discharge which will result from the activity described above. Attach a seaamte schedule for each discharge Identified below.

Discharge Receiving Water Latitude/Longitude (optional)

S/N 001 Main Condenser Cooling & Connecticut River at Vernon VT Latitude: 42" 46' 45" Service Water (SW) Lnnitude: 72' 30' 48" S/N 002 Radioactive Luquid" Connecticut River at Vernon VT Latitude: 42" 46' 45*

Lontude: 72" 30' 48" S/N 003 Heating Boiler Blow down Connecticut River at Vernon VT Latitude: 42' 46' 45" Longtude: 72' 30 48" S/N 004 Water Treatment Carbon Connecticut River at Vernon VT Latitude: 42" 46' 45" Filter Backwash Loniltude: 72" 30' 48W S/N 005 mmRservice Water pump - Connecticut River at Vero VT Latitude: 42' 46' 45" Cooling Water* Longitude: 72" 30' 48" S/N 006 North Storm Drain Outfall Connecticut River at Vernon VT Latitude: 42' 46' 45" TLongitude: 72"30' 48W S/N 007 South Storm Drain Outfanl Connecticut River at Vernon VT Latitude: 42" 46' 45"

,, ,

• Lo~n~ltde: 72"W0 48' S/N 008 southeast storm Drain Outianl Connecticut River at Vernon VT Latitude: 42' 46! 45"

• ~~Lr~o de: 72"30' 48*

Si009ner &Travelig screen Connecticut Rtver at Vernon VT Latitude: 42- 46 45" Backwash _n de: 72 30'48" S/N 010 345kV Storm'Draln Outfail Connecticut River at Vernon VT. Latitude: 42" 46 45"

_Longtud- 72' 30' 48" S/N 011 115iV North Storm Drain Connecticut River at Vemon VT Latitude: 42' 46' 45" outan ngitude: 72' 30' 48" I No such discharge has occurred since 1981.

Use an attached sheet for AddiUonal Dlschae

12. 3 V.S.A. Section 2822 Fees: Call 802-241-3822 Iffyouneed assistance calculfa=ng the appllcation review fee.

Administrative Processing Fee: $ 100.00 (does not apply to Emergency Pollution Permits) plus Application Review. Fee: $ 0 (does not apply to renewals)

Total Fee Enclosed: $100.00 I CERTIFY THAT TO THE BEST OF MY KNOWLEDGE AND BELIEF THIS INFORMATION SUBMITTED ABOVE IS TRUE, ACCURATE AND COMPTE. I RECOGNIZE THAT BY SIGNING THIS APPUICATION I AM GIVING CONSENT TO EMPLOYEES OF THE STATE TO ENTER THE SUBJECT PROPERTY FOR TIE PURPOSE OF PROCESSING THIS APPLICATION,.

must be sgnd by the appUcant or an oM=frk the apphcas busbiess, a rmis aMciaL etc. Mm appcation

£JiNQ*be ftged by the appucants attorne, eng~ner ctraor. etc.

Submittal of Application: Attach appropriate schedules, administrative processing and application review fees, plans, specifications and other supporting material. Send application to:

Vermont Department of Environmental Conservation Wastewater Management Division 103 South Main Street - The Sewing Building Waterbury VT 05671-0405 FORM WR-8 Rcv. 7/Ml, Kdln* .Amn\ACAT~~ scd MWR82pd"pd

Attachment A STATE OF VERMONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION WASTEWATER MANAGEMENT DIVISION 10 V.S.A. Chapter 47 Permit.Application Form WR-82 Application For. (Check ( ) one) with Schedule: Action Requeste& (Check ( ) one)

Municipal/industrlal Discharge Permit AorB Orgna1 Permit Emergency Pollution Permit E .Renewal Indirect Dischage Permit I -Amendment Pretreatment Discharge Permit B -Transfer

__ Stormwater Discharge Permit D orF Permit # 3-1199

__ UIC (non-stornwater) Permit SpecialForm Status of Discharge: (Check ( ) one) Nature of Waste: (Check ( ) one)

- Proposed - Sanitary (domestic sewage only)

-4 Existing J.. Non-Sewage/Industrial

_ Stormwater (surface or subsurface disp.)

For DEC Use: PIN Reviewen. Check #:_ _ _ftle 3: Y N

1. Applicant: . PanteVrmmrint Yankep n,1p*r

2. Legal Entity: Limited Liability Company (Individual, corporation, partnership, firm, state agency, municipality, etc.)

3. Mailing Address: 320 Governor Hunt Road Vernon. VT 05354 4.

Contact:

Lynn DeWald Telephone: (802) 258-5526 (Person to contact regarding this application) Fax (optional): (802).258-5865

4. Name of Activity: Vermont Yankee Nuclear Power Station (John Doe residence, SYZ Corp., Clark Lake State Park. Green Motel. etc.)

5. Type of Activity:. Steam-Electrlc Generation (Residential subdfinsion, paper mill, state park, motel. etc.)

6. Description of Waste: See each serial number listed below

7. Name of Landowner: Entergy Nuclear Vermont Yankee, LLC

8. Location: 320 Governor Hunt Road *Town:~Vernon (Number and Street/Road Name)

.9. If this application is for a permit renewal, is the original application still valid in al respects? Yes If not, document changes on a separate attachment.

Pagp I of 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES.

DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTRIAL/COMMERCIAL/INSTITUTIONAL WR-82B CHAPTER47 OF1TMLE I0 VSA-.

DATE. 8/24/05 B-I: APPLICANT: Enter=y Nuclear Vermont Yankee, LLC ACTIVITY: Steam-Electric Generation B-2: DISCHARGES SN: 001 DESIGNATION: Main Condenser Cooling Water B-3: EXACT LOCATION ON RCEIVING WATER (dcsciib and Locate an np): Dischame Stuctre, Vemnt Yankee Nucear Power Statin Latitude: 420 46' 45 Longitd 720 30' 48" 04: MATURE OF ACTIV :Main Codener Coolin (Using Connecticut River Water) 0 P-5:

OINT SOURCE CATEORY (EPA): Transportation & Public Utility 40 CR. SUB-PART:

SIC: 4911 SUBCATEGOOY: Electrical Services PRODUCT: Electricity PRODUCTION PROCESS: E Conversion: Steam-Electric PRODUCTION: N TON/DAY N/A

• a IF THE DISCHARGE IS REGULATED BY EMTER40 CFR PART413 OR40 CFRPART433 (nmtal finishing erelectavohting),

INCLUDE A0O10C OROAINIC MANAGEMENT PLAN NIA 0-6: DESCRIBE WASTES TO BE DSaRGW: Heated Connecticut River water as a result of operation of the Station's Main B-7: EDOSTING DISCHARGE? YES ir -m,. ARE WASTmS BEING TREATED? YES EXPLAIN AND DESCRIBE ANY LESS THAN FuLL'E oPERATION OF TRFA-rmENT FAcuXIrmsE pedinZ on ambient conditions, the n=1anical draft coolina towers am someimes used to remove beat.

IF "WN.GIVE DATE DISCHARGE WIL COMMENCE I WILL WASTES BE TREATED PRIOR TO DISCHARGE? IA E MPAIN AND DESCRIBE ANY LESS THAN RVILL TIME OPERATION OF TREATMENT FACIITIES:

104: ARE NEW TREATMENT FACILITIES OR MODIFICATIONS TO EXISTING FACILJTIES IN DESIGN OR UNDER CONSTRCTION?YES. F SO. DESCRIBE AND PROVIDE SCHEDULE FOR ATTAINMENT OF OPERATIONAL LEVEL'An independent Certificate of Public Good, aflowin! a per uprate has been armMve but contemplates gpeat*I in accordnc with the exsi N-PDE Permit. inludinZ as a result of cwt=n-tower modifications oMnIeWe in 2005.

Page 2 of 3 B-9: IF DESIGN OF PROPOSED TREATMENT FACILITY REQUIRES A PERIOD FOR DATA COULECTION. HOW MUCH TIME IS REQUIRED7 N/A BM.: DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTAKE WATER, OPERATIONS CONTRIBUTING WASTEWATER TO THE EFFLUENT AND TREATMENT FACIMTIES. ATTACH LINE DRAWING.

SHOWING THE WATERFLOW THROUGH THE FACml'Y: See SN-O01Attachment A: "Schematic of Design Maximm Capacity Water flow". Revised May. 2000 and Site Plan- Recognized Environmental Conditions, May 2001.

B-II: VOLUMES OF WASTES. AFTER TREATMENT, IF ANY,TO BE DISCHARGED.

(A)S WEEKDAYS AVERAGE:. N/A (GPD MAXIMUM: NLA& GPD WEEKENDS AVERAOE. N/A = OGD MAXIMUMI*-: - WA _GPD (B) AI.OnTHR WASTES WEEKDAYS AVERAGE: IA . GPD MAXIMUM: 543,000,000 GPD WEEKENDS AVERAGE:- NIA _GPD MAXIMUM: 543.000.000 GPD WILL DISCHARGES IN (B) ABOVE BE ESSENTiAaLY UNIFORM OVER A 12 MONTH PERIOD? NO IF NOTa PROVIDE MONTHLY OR SEASONAL BREAKDOWN:

October 15'-May 15*: relativly uniform (mostly ,o cvcle): May 16' -October 14*: variable (mixed gm hbrid and closed cZlje See SN-O01 Attaciments B and C. providig sematics oft cycles.

B-12: ISTHE PERSON WHO IS,OR WILL BE, RESPONSIBLE FOR OPERATION AND MAINTENANCE OF THE TREATMENT FACILITY CERT BY THE AGENCY OF NATURAL RESOURCES AS A TREATMENT PLANT OPERATOR? NIA B-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLIDS, SLUDGES, FILTER BACKWASH OR OTHER POLXLTANTS REMOVED INTHE COURSE OF T*EATMENT OR CONTOL OF WASTEWATERS. INCLUDE DISPOSAL SITE OR LOCATION: The mnbanical draft cooling towes are used to remove beat from the circulating water discharme Mder certain conditions, The disfsal of c02&gh tower silt And debris from the travein eens is descnrbed on vaae 7 in the existinz Pcnrit issued on 4 October.2004, see items 13 Mad 14,

PAGE 3 OF 3 DESCRIBE THE EFFLUENT CHARACTERITI(S OF WASTES, (B-12(A) AND (B) TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BEVE ARE PRESENT. PROVIDE MAXN.MCENI*TIO OR RAM-*OFCONCEIrTn . IF NO CONSTITUENT OF THE TYPE INDICATED ISADDED, ENTER -NONE ADDED'. "IFCONSTITUENT IS PRESENT INUNKNOWN OR UNCERTAIN AMOUNT ENTER ?RESENm AND DESCRIBE CIRUMSTANCES RELATING TO ITS PRESENCE. INCLUDING AMOUNTS OF KNOWN CONMT-JN UNDER (C)REMARKS BELOW.

A. BIKKOWHNAL AND PHYSEA*LCHAACTERISTICS BODS: not monirtored, mg TOTAL DISSOLVED SOLIDS: none added mg/I COD: not monitored we TOTAL PHOSPHORUS AS P: none added

• mg/I TSS: not monitored n/ TOTAL KJELDAHILNITROGEN (MN; none added ng/*'

TURBIDITY: not monitored JTU COLOR. none added SETILEABLE SOLIDS: none added mg/i MATERIs AFFECTING TASTE AND ODOR none added.

OIL ANDOREASE: none added _m/ TEMPERATURE RANGE: 7( F To10 F (May16-ctober i4)

FLOATABLE SOLIDS: none added mg/ pH RANGE6.5 TO_8,5 Su B. C CON ARSENIC: none added we MlmUy: none added CADMIU- none added _Iz" NIEL: none added CHLORINE (FREE): 0.2 m9/ SELE :UM-none added CHROMUM 0(+6), none added mg/I SILVER: none Wdded m/

CHROMIUM (+3); none added mg/I ZINC: 0.0029 - 2.07 n/

COPPEP 0.0o1 -,09 OTHERS (nldg my ota poiutnt ideatecd a s prt p¢ot by EPA in The NRDC vs. Tn&

CYANIDE, none added taw td==eofJuly, 1976)

IRON:. 0.-5.11m Added Heat from Condenser Cooling

.AD n*one added mg/e Bromine Lfree . 0.2 _g.

MANGANESE: noeadded Mg/I mg/

(C) REMARKS: Data for Total C . Iron, and Zinc was taken from fte Vermont Yankee annual EMnrts 2000 2004: Ecologcal Sies of the Connecticut Riv" Vero Vermont that w re prviouslv submitted to te Agenc.

NOTE: * = maybe pnreent in tra ampunts.

(Instuctions on revers side)

FPar I o 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTRIAIJCOMMERCIAUINSTITUTIONAL WR-82B CHAPTER 47 OFpTInE 10 VSA..

DATE: t24A5 B-t APP-CA. EntergX Nuclear Vermont Yankee. L ACHVI': Steam-Elctric Generation B-2: DISCHARGES SN, 002 DEIGNATION: Radioactive Higlh purity Water 3-3: EXACr LnCATION ON REcm a WATER (desibe aod Loca map) Dischfarf Strcture, Vamnt Yankee Nlear Po Station. ULatitd: 42"_ 46" 45" Longitde: 72" 30" 48" 14;: NATURE OFrAcIInv  : Processin radioactively contaminated water from power plant operation B-5: POmrSOuRCE CATEORYlmA): Tmmxdation & Public Utilit 40o . Stm-PART SC: 4911 SUB CATEGORY: _lectrical Services PODUCr, Electriity PRODUCTIN PROCES= EneD= Converon: Steam-Elecatic PRoDuc  : NA TO AY A 5ca FHE DISCHARGE ISREOU4TED BY EIER 40 CFR PART413 OR 40 CR PART433 (metal finWg ore ctvophling NCWDB A TOX*C ORGA MANAGEMTPLAN. NIA B.6& DSCm WASTES "o0BEDIi ARm : Hih verity water contaiing radiotnclid. mainly tritiun.

B-7: EXISTING DISCHARGEL YES L F YEs. ARE WASIE BEING TREATsD?_YES EXPLN AND DESCRIBE ANY LESS THANHILLTIMOERA*IM OFTREA'IhENTFACuI  : Tratment facilities would always be in service it tis twoe of discbm wmto be sceduI&l The last disch of slfhtl'v radioactive water was in 1981.

,FOX, GIVE DATE DISMMARGE WILL GE.E _ ___.

.. WU.L WASTES BE TREAIE PRIOR TO DICHARGE? NIA . ,XMAAMD DESCRME *YULESm TUA IULLTUM OPERATIO O'Tro AThoEN FAQarrIMS B-k ARME NEW TREATMUMTALUM OR MODIIMATIONS TO EXISTMG FAaUE INDESMIN OR UNDER CONSTRUCT No IFS DESCRIME AND PROVDE S m FOR ATrAM*N*OPOPERATIONAL

-LEVEL

Pap2of3

%IF3-9: I DESIGN OF PROPOSED TREATjMENTPFAOL1Y REQUIRES A PERIOD FOR DATA COLLECTION. HOW MUCH TIME IS B-.O: DESCRIBE FLOW SEQUENCE OF DISCHARGE. PDING SOURCE OF INTAKE WATER, OPERATIONS CONTIBmUTING WASIEWATER To-m *ujENT AND TREATMENT FACurrIES. ATrACH LN DRAWING SHOWING THE WATER FLOW THROUGH Ti FACILTY: See SN-002 Attnament "Schematic of Design Maximum Capacity Water flow". Revised May. 2000 and Site Plan:

B-11: VOLxM-S OF WASmTE, AFERI TREATMENT, IF ANYTO BE DISCHARGED.

(A) SANaT=RY W&T: WEEKDAYS AVERAGE: N/A GP) MAXIMU: A GPID WEEKINDS AVER AOJ GPD MAXIMUM: IVA OH)

(B) AU,.=-&.=* WEEKDAYS AVERAGE WA -GPD MAXIMUM: 10.000 -GD WEEKENDS AVERAGE: NA 0MD MAXWM: .10,0..WD WILL DISCHARGES IN (B) ABOVE BE ESSENTIALLY UNIVORM OVER A 12 MONTH PERIOD? NO IF NOT, PROVIDE MONTHLY OR SEASOAL BREAKDOWN:

Any dischar= of this tYD iud be done on a batch by batch basi and as Stated above. have not been perfsmed since 1981. However, they may occur.

B-12. ISTE PERSON WHO LM OR WL BE. RE NSIBL FOR OPERATION AND MAVINANCE OF THE TREATMENT FACILITY CERTHIiED BY THE AGENCY OF NATURAL RESOURCES AS ATREATMENT PLANT OPERATOR? N/A B-13: DESCRIBE THE PROCEDURES USED RORTHE D*IPOSAL OF ALSOLIODS, SUDM, FILiER BACKWASH OR onIER POU ANTS REMOVED IND4THE COURSE OF'IRBATMIM OR 2ONrhOL OF WASTEWATERS. INQAJD DISPOSAL su OR wOCA'xo -Radioactiwe liouds arMMe thromh the plont Radwate mm= using ion exchange resis.

When these resins become expended t-y,become radioactive waste Which is handled in accordance with NRC and other Federal reglflations.

PAGE 3 OF 3 DESCRIBE THE EFFLUENTCHARACTIMRTICS OF WASTES, (B-12(A) AND (B)TO BE DISCHARGED WHICXH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIMUM C NRAnQTIONS OR RANGE F N s. EF NO CONSTITUENTOFhIE TYPE INDICATED IS ADDED, ENTER IONE ADDED! IFCONMTUENT IS PRESENT INUNKNOWN OR UNCERTAIN AMOUNT ENTER PRESENr AND DESCRIBE CIRCUMSTANCSs RELATINo TO rIS PRESENCE, iCUDIN AMOUNT'S OF KNOWN CONMTWENM UNDER (C) REMARKS BELOW.

A. AK31 lA~l) tS.L(A BEDS: not Imoni~tored ,-g/i TOTAL DISSOLVED SOLIDS: none added mpg/

COD- notnonitored TOTAL HOPHORUS AS p noneadde ,,m/

TOTAL KJEWAHL NITROGEN (TKN); none added .ig/I TURBIDITY -not.monitored_

(XLoR. none added SET7LABLE SOLZDS: none aded MATERIALS AwPP O TASTE AND ODOR.: none added, OLOAND GREASO& __none pdd-ed ,g/ TMAPERANRE RANGE:-4 F TO 113 F FLOATABLE SOLIDS: none added -mo/ pHRANGEh 6_5 To _8.5 SUj B. CHAWAQ=

ARSENIC -none added g MERCURY: none added mg/i CADMIUM: none added mw' NICKEL:

• mg,'

CHLORINE (PREm): none added mo! SELmu. none added mgi OIROMWUM (46): _ m/ SLVER none added mg/I CHROMIUM (+3): ** mg/I ZINC: 0,003 -0099 m/

COPPER 0.0o -0.o9 OTHr (Incrmg any odr pollutant klmid as urdmy pollutant by EPA in the NRDC vs. Train CYANIDEh none amdded mg/I m=dtcno(JolyyS 1976)

]RON:- 0.1--.11 LE- -amne added -jn&n MANGANESE: none added m _9-(C) REWMA  : Data for Total Cooper. Iron. amd Zinc was taken from the Vermont Yankee annual Mpgrt 2000-2004: Eeolopiaal Studies of the Connecticut River. Venomn. Vermont that we previously submitted to the AnenMv.

NOTM: *, may be Resemt in trace amounts (Insmuacdow an rimue sd&)

Papc I of 3 STATE OF VERNIONT

-~AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTRIALCOMMERCIAL1LNSTITUTIONAL WR-82B CHAP 47 OF T 10 VSA..

DATE. S245 B-I: APPICANT: Entergy Nuclear Vermont Yankee. LLQ ACTVT: Steam-Electric Gneation B-2: DISCHARGES SN: 003 DESIGNATION: House Heating Boiler Water B-3: EXACT LOCATION ON RECEIVING WATER (dcsci and Loatc on mxp): Dis.harLe Stuctue Vermont Y]anke Nuclear Power Station, LAtituade: 42 4.6' 4,5" .,_ Loitude: 72r 30' 48" ,.

14: NATURE OF AcTnVrIY: Normal ouertion of the Station's house heting boilers (blowdows. mahinnce etc...

B-5: POINT SOURCE CATEGORY (EPA) T rtaon &Public Ulity 40 CFR. SUB-PAR _

siC: 4911 SUB CATEGORY.: Electrical Services PRODUCTV:Electricity PRODUCTION PROCESS: Eneav Conveion: SteM-Eect c eRODUCmNN:. N/A To DAY._./A FTHE F: DISCHARGE IS REGULATED BY EMIER40 CFR PART413 OR40 CFR PART 433 (nmetI finishng orctroplating),

4w' INCLUDE ATOXIC ORGADfC MAAG&EMT PLAN. U/

B-6: DESCRIBE WASTES TO BE DISCIARGED. House heatingw boiler water- T7e boilers are treated daily from approximately mid October to mid Ma with Betz Costrol mfearr's OS7700.

B-7: EXISTING DISCHARGEYS _ "Y.Es. ARE WASTES BEING A7 No EXPLAINND DESCRIBE ANY LESS THAN FULL IM OPERATION OFP REATMENT FACI'r These are minor discharges of 1.000 to 2.000 zallons mer day which are diluted at a minimý of 1.250 pdor to rachin* the dichar stpctur, IF NW, GIVE DATE DISCHARGE WUIL (MMENCE. l. . WILL WASTES BE TREATED PRIOR TO DISCHARGE? N/A EXPLAIN AND DESCRIBE ANY LESS THAN FULL TIME OPERATION OF TREATWENT FACMLTES:

14: ARE NEW TREATMENT FACILHITES OR MODIFICATh)NS TO EXISTING FACILITIES IN DESIGN OR UNDER CONSMhUCTION  ? *o IF SO. DESCRIBE AND PROVIDE SCHEDULE F)R ATrAD MffT OF OPERATIONAL LEVEL

Page2 of 3 1-/9: IF DESIGN OF PROPOSED TREATMENT FACILITY REQUIRES A PERIOD FOR DATA COLECTION. HOW MUCH TIME IS REQUIRED? N/A B-IO: DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTAKE WATER, OPERATIONS CONTRIBUTING WASTEWATER TO THE EFUENT AND TREATMENT FACILI1E. ATTACH LINE DRAWING SHOWING THE WATER FLOW THROUGH THE FACurIY: See SN-002 Attacment:* Scheatic of Design Maximm Capacity Water flow". Revised May. 2000 and Site Plam B-I1: VOLUMES OF WASTES, AFTER TREATMENT, IFANYTI) BE DISCHARGED.

(A) SATARY WASTFS: WEEKDAYS AVERAGE:, N/A GPD MAXIMUM: N/A GPD WEEKENDS AVERAGE: GA _GPD MAXIMUM: N/A GPD (B)At1AHE&wAsi WEEDAYSAv AVER.A. - 130 GPD MAXIMUM: 2.000 OpD WEEKENDS AVERAGE E130 (PD MAXIMUM 2M000GPD WILL DISCHARGES IN (B) ABOVE BE ESSENTIALLY UNIFORM OVERA 12 MONTH PERIOD? NO IF NOT, PROVIDE MONTHLY OR SEASONAL BREAKDOWN:

Once or twice =r day dring t heating season, tbnicallv mid October to mid May_. At the end of the heatiub esom-each boiler is drained of 2,000 &lAons of water, B-12: IS THE PERSON WHO IS OR WILL BE, RESPONSIBLE FOR OPERATION AND MAINTENANCE OF THE TREATMENT FACIITrY CERTIFIED BY THE AGENCY OFNATURALRESOURCES AS A TREATMENT PLANT OPERATOR? N/A B-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLIDS, SLUDGES, FILTER BACKWASH OR OTHER POLLUTANTS REMOVED IN7M COURSE OF TREATM rOR " CONROL OF WASTEWATERS. INCUJDE DISPOSAL SITE OR LocATIoN: There is no treatment ofthis waste sbtram. T7e boiler water blowdowns contain some solids and residual boiler eatm-ent chemicaL These would Mt be detectable at te Station's discharge astuctum.

PAGE 3 OF 3 B-14: DESCRIBE THE EffU NTCHARACTERISTrCS OF WASTES, (B-12(A) AND (B) TO BE DISCHARGED WHICH YOU KNOWOR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIMUMCONCENTRATIONS OR RANGE OF CONCENTRATIONS. IF NO CONSTITUENT OF THE TYPE INDICATED IS ADDED, ENTER NONE ADDED. IF CONSITIUENT IS PRESENT IN UNKNOWN OR UNCERTAIN AMOUNT ENTER"PRESENT" AND DESCRIBE CIRCUMSTANCES RELATING TO ITS PRESENCE1 INCIUDING AMOUNTS OF KNOWN CONSTITIJENTS, UNDER (C) REMARKS BELOW.

A. BIOCHENICALAIM PHYSICAL ¢CHARACTRSM BODS: not monitored TOTAL DISSOLVED SOLIDS: none added _ g/I COD: not monitored mg/I TOTAL PHOSPHORUS AS P: pone added mg/I TSS: not monitored mg/ TOTAL KJELDAHL NITROGEN (KX none added m&4 TURBIDITY: not monitored JTU COLOR: 3ellow.to slightly brown SETTLEABLE SOLIDS: none added MATiw lS AfFE w TASTE AND ODOR. none adde&

OILAND GREASE., e added .. i TEPERATURE RANGE: 5 F TO 12. F FLOATABLE.SOLIDS: none added pH RANG&~ 8.5 TO 11.0OSU B. CHEMICAL CO ARSENIC: none added Tw MERCURY: none added me CADMIUM: none added mg/I NIKEL*

• mg/I*

CHLORINE "(FR none added uv/

sLVE*, none added mp CHROMIUM (+4 m -.

CH:ROMIUM (+3) one ae ZINC.: .0,0-0.099 _M84 COPPER 0001-0.09 OTILERS (jaculudn ay othe polhluant identified as apriouztypoMlznt by EPA in the NRDC v. Train CYANIDE:~ none ad~de cosent decre ofuly 8, 1976)

IRON: - 0.1 -5 I LEAD: none added *agfl Hvdrouinone 2-40 mg/I MANGANESE: none added .g/_

(C) REMARKS: Data for Total CQp-r, Iron, and Zinc was taken from the Vermnnt Yankee annual reports 2000-2004: EcoloaLcal Studies Ofthe Connecticut River. Vcrnom. Vermont that were vReviously submitted to the Agmncy.

NOTE.:* may be uresent in trace "amoft,.

(Jnitruction an amirirse side)

Page I of 3 STATE OF VERMONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTRIALICOMMERCIALIINSTITUTIONAL WR-82B CHAPTIER 47 OF TITE 10 VSA-DATE: 8/24/05 B-L APPICANT: EnLarm Nuclear Vermont Yankee. LLC ACnVITY: Steam-Electic Generation

-B-2: DISCHARGES SN: 004 DESIGNATION: Carbon Filter Backwsh B-3: EXACT LOCATION ON RECEIVING WATER (dcmaie ad Locate on mnp) P Sftucte. Vermont Yankee Nuclear Pow rae Station titude; 2' 46' 45" LongiNde. 7r 30' 48" 114: NATURE OF ACTIVITY: Carbon filtration of Rotable or river water for non-cooling uses B-5: POINTSOURCECATEOORY(EPA): Transortaton& Public Utility 40CFR.SUB-PART:

SiC: 491.1 SUBCATEGORY: Electrical Services PRODUCT: Elecfrity PRODUCTION PROCESS: Enrgay Conversone Steam-Electric PROD*NU *OIN A TON6AY N/A Sa:. IFTIIEDISCHARGEIS REGULATED BY EMHER40 C RPART413 0R40CFRPART433 (mini finishing orclctopating),

INCWDE A TOXIC ORGALNIC MANAGEMN(TPL4AN.N14/

B-6 DESCRIBE WASTES TO BE DISCHARGED: Solids from the backwash ofpotable or river water carbon &flt B-7: EXISTING DISCHARGE? YES U. "YES. ARE WASTES BEING REATED? No EXPLAIN AND DESCRIBE ANY LESS THAN FULL TIME OPERATION OF TREATMIENT FACIUTIES: Treatment fa&Iity is operated approximately every thre to s wee. ye round.

IF -N0',GIVE DATE DISCHIARGE WHLCODMM-N~ WILL WASTES RETREATED PRORTO DISCHARGE? - EXPLAIN AND DESCRIBE ANY LESS THAN FULL M,1 OPERATION OF TREATMENT FACIUlTIES:

8-: ARE NEW TREATMENT FACHIITIE OR MODIFICATIONS TO EXISTING FAC*LITIES IN DESIGN OR UNDER CONSTRUCTION? No IFSO, DESCRIBE AND PROVIDE SCHEDULE FOR ATrAINMENT OF OPERATINAL LEVEL

• Page2 o'3 9: IF DESIGN OF PROPOSED TREATMENT FACILrTY REQUIRES A PERIOD FOR DATA COLLECTION. HOW MUCH ThME IS REQUIRED? N/A 840: DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCUDNG SOURCE OF INTAKE WATER. OPERATIONS CONTRIBUTING WASTEWATER TO THE EFLUENT AND TREATMENT FACILITIES. ATTACH LINE DRAWING SHOWING THE WATER FLOW THROUGH THE FACMSY:e Attcmet "Shmatic of Di Maximum pcit Water flow". Revised May, 2000.

B-11: VOLUMES OF WASTES, AFTER TREATMENT, IFANYTO BE DISCHARGED.

(A) SAfT&RY` WEEKDAYS AVERAGE_ /A .PD MAXIMUM: N/A . GPD WEEKENDS AVERAGE: N/& GPD MAXMUML LN/A GPD (B) ALL O WTWEEKDAYS AVERAGE: N/A GPD MAXIMUM:_10,000 GPD WEEKENDS AVERAGE: NA PPD MAXIMUM 10000 GPD WILL DISCHARGES IN (3) ABOVE BE ESSENTIALLY UNIFORM OVER A 12 MONTH PERIOD? Yes IF NOT, PROVIDE MONTHLY OR SEASONAL BREAKDOWN.:

DiPLchw= are uniform in content but oly occur every thre to six weeks, year round.

kw2: IS THE PERSON WHO IS, OR WILL BE, RESPONSIBLE FOR OPERATION AND MA ANCE OF THE TREATMENT FACILITY CERTIFIED BY.THE AGENCY OF NATURAL RESOURCES AS A TREATMENT PLANT OPERATOR? N/A B-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLIDS, SLUDGES, FILTER BACKWASH OR OTHER POLLUANTS REMOVED IN THE COURSE OF TREATMENT OR CONTROL OF WASIEWATERS. ICLUDE DISPOSAL STE OR LOCA'rtoN The srinde solids (maximum of 8.3 Ro=dts veM day) am backwashed to the plant storm drain sysm and Wulmtely discb to the rier.

PAGE 3 OF 3

ý"* B-14: DESCRIBE THE EFFLUENT CHARACTERISTICS OF WASTES. (B-12(A) AND (B) TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIMUM CONCENTRATIONS OR RANGE OF CONCENTRATIONS. IF NO CONSTITUENT OF THE TYPE INDICATED IS ADDED, ENTER"NONE ADDED. IF CONSTITUENT IS PRESENT IN UNKNOWN OR UNCERTAIN AMOUNT ENTER "PRESENT" AND DESCRIBE CIRCUMSTANCES RELATING TO ITS PRESENCEi INCLUDING AMOUNTS OF KNOWN CONSTITUENTS, UNDER (C) REMARKS BELOW.

A. BIOCIUM AND PHYSICL CHARACTERSTICS BODS: not monitored g TOTAL DISSOLVED SOLIDS: none added. mgn COD: - not monitored m&4 TOTAL PHOSPHORUS AS P: none added mngI TSSLUQJ-H m94 TOTALKJELDALNIROGENK*N); none added _g%4 TURBDrY: not monitored COLOR& N/A SETTI.ABLE SOLIDS: pom added MATERIALS AFFECTING TASTE AND ODOR: none added.

OIL AND oREASE: none added MzA TEMPERATURE RANGE: F TO L5'F FLOATABLE SOLIDS: none added pH RANGE: 6.TOQ7,iSU B.

ARSENIC. none added mg/i MRCURY: none added .g/I CADMIUM: none added m*I NICKEL none added mgA CHLORINE (RUE om added me SENI  : none added meI CHROMIUM (+6): none added wg SILVER none added CHROMIUM (+3): none a Dg ZN none added _mgI COPPRER none added OTHERS (Including any odwe pollutant Identified as Spriorty polutant by EPA in the NRDC vs. Train CYANME: none added _ mg/ misent dtea ofJuly 8, 1976)

MAW~h. .. AA.A A-dulft 05duRu _ pwl LEAD-- none added MANGANESE: none added mg/I (c) REMARKS:

(hnubzctions on reverse side)

Pap lof 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONNiMEAL CONSERVATION SCHEDULE B: INDUSTRIALICOMMERCIAIaINSTITUTIONAL WR-82B CHAPTER 47 OF ITrME 10 VSA-.

DATE: 824/05 B-L APPLICANT: Enter-a Nuclear Vernont Yankee,. LL ACTIVTY: Steam-Electric Generation B-2: DISCHARGES SN: 005 DESIGNATION: IM ,Service Water Pbnp Cooling Water 3-3: EXACT LOCATION ON RECEING WATER (des'be and Locaft on map. DiscR¢he Structure, Vermont Yankee Nuclear Power Station. Latitude: 42" 46' 45"- *&ngitnde; 72? 30' 48" 34: NATURE OF ACTIVITy: Provides Connectict River water to coml each of the foL RHR service water pun motors.

B-5: P*OirsoURcEcAToRY (EPA): Trannxrtation &Public Utility 40C.SU-PART:

SIC: 4911 SUBCATEGORY: E*ectricl Services PRODUCT: Electricity PRODUCTION PROCESS: Energy Conversion: Steam-Electric PRODUCTION: N/A TON/DAY N/A la: IF THE DISCHARGE ISREGULATED BY EiER40 CFRPART413 OR40 CFRPART433 (net finishing ordctroplating),

qpoý INCLUDE A TOXIC ORGAEM MA%*AEMENT PLAN. M/A B-6 DESCRIBE WASTES TO BE DISCHARGED:-8ightly heated Connecticut River water B-7: EXISTO DISCHARGE? XM IF "YES'. ARE WASTES BEING TREATED? No EXPLAIN AND DESCRIBE ANY LESS THAN FULL "mm OPERATION OFTREATmHENTFACIImmS: No treatment necessary as this is considered a minor coolin water discharge.

IF -'N. GIVE DATE DISCHARGE WILL WILL WASTES BE TREATED PRIOR TO DISCHARGEN/A EXPLAIN AND DESCRIBE ANY LESS THAN FULLTIME OPERATION OF TREATMENT FACILITIES:

B4: ARE NEW TREATMENT FACILHIES OR MODIFICATIONS TO EXISTING FACILITIES IN DESIGN OR UNDER CONSTRUCTION7 No IFSO, DESCRIBE AND PROVIDE SCHEDulE FOR AtTAINMENT OF OPERATIONAL LEVEL k"-I

Pasp2of3

-9: IF DESIGN OF PROPOSED TREATMENT FACILITY REQUIRES A PERIOD FOR DATA COULECTION. HOW MUCH TIME IS REQIRD N/A B-40: DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTAKE WATER, OPERATIONS CONTRIBUTING WASTEWATERTo THIE EFFLUENT AND TREATMENT FACIInrES. ATrACH LINE DRAWING SHOWING THE WATER FLOW THROUGH THE FACILITY: See Attachment "Schematic of Design Maximum Capacity Water flow". Revised May, 2000.

B-11: VOLUMES OF WASTES, AFTER IREATMENT, IF ANYTO BE DISCHARGED.

(A) SANfTARY wAsTFs: WEEKDAYS AVERAGE: _N/A _GPD MAXIMUM: N/A GPD WEEKENDS AVERAGE. N/A GPD MAXIMUM: N/A

• GPD (B) ALL OTHER WASTES: WEEKDAYS AVERAGE: NI/A GPD MAXIMUML-9-H GPD WEEKENDS AVERAGE. N/A & GPD MAXIMUM 0,14 GPD WILL DISCHARGES IN (B) ABOVE BE ESSENTIALLY UNIFORM OVER A 12 MONTII PERIOD? Yes IF NOTt PROVIDE MONTHLY OR SEASONAL BREAKDOWN:

-12: IS TIHE PERSON WHO IS, OR WILL BE, RESPONSIBLE FOR OPERATION AND MAINTENANCE OF THE TREATMENT FACILTY CERTIFIED BY THE AGENCY OF NATURAL RESOURCES AS A TREATMENT PLANT OPERATOR? N/A B-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLIDS, SLUDGES, FILTER BACKWASH OR OTHER PO.UTANTS REMOVED IN THE COURSE OF TREATMENT OR CONTROL OF WASTEWATERS. I2N*LDE DISPOSAL SITE OR LOCATION: NIA.

PAGE 3 OF 3 DESCRIBE THE EFFLUENT aCARACR1STKS OF WASTES, (B-12(A) AND (B)TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELEVE ARE PRESENT. PROVIDE MAX0MUM CONCENONS OR RAGE OF CONCENTRATONS. IF NO CONSTITUENT OF THE TYPE INDICATED ISADDED, ENTER "NONE ADDED'. F CONSTITUENT IS PRESENT IN UNKNOWN OR. UNCERTAIN AMOUNT ENTER *PRESENT' AND DESCRIBE CIRCUMSTANCES RELATING TO ITS PRESENCEI INCLDING AMOUNTS OF KNOWN CONSTfiENTS, UNDER (C)REMARKS BELOW.

A. BIOHENCAL AND PHYSLCHARACTERIS BOD5: not monitored- TOTAL DISSOLVED SOLIDS: none added mw COD: not monitored mg/I TOTAL PHOSPHORUS AS P: none added mgd TSS: not monitored mg/ TOTAL KJEWDAHL NrIROGEN CTKN); - none added _mg TURBIDITY: not monitored fTU COLOR: NIA SETrLEABLE SOLIDS: none tdded _M4/ MATERIALS AFF"CnNG TASTE AND ODOR: none added.

OIL AND GREASE none added _ mn TEMPERAIR RANOR: amount added is inmmeasureable FLOATABLE SOLIDS: none added n_ pH RANGE:- pownaded B. CHEMICALCON ARSEN*C. -none added M94

• MERCURY: none added mg/

CADMiuM: none added _wo NICKEL~ none added mg/I CHLORINE (FREE) none added mg/i SEENIUM: none added mg/I CHROMIUM (+6y p= Egg SaVER: non added mg CHmOMIUM (+3): ,noneadded M 2zNC. one added mn COPPER none added mg/I OTHERS (ihncuding any other pollutant identified as aprkwity pollztznt by EPA in the NRDC vs. Thin CYANIDE. none added "w/l cm.ct dace ofJuly, 1976)

IRON: snone- addeA ý-W.

-V A LEAD- none added ywn, MANGANESE: none added g/

(C) REMARKS:

(hI~nsla~cs on reverse side)

I

Page 1of 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTIALL/COMMERCIAI/INSTITUIMONAL WR-82B CHAPTER47 OF TITLE 10 VSA_

DATE 8/2405 B-L APFlCANT:.Entekr Nuclear Vermont Yankee, LL ACTIVITY: Steam-Electric Generation B-2: DISCHARGES s: 006 DESIGNATION: North Stormviater System B-3: EXACT LOCATION ON RECEIVING WATER (desc'be and Lowet on mapp Approximtely 200 ads north of Station's iftke srcture Lattde: 42 46' 45" Lont&u: 7? 30' 48" B4: NATURE OF ACTIVITY: Stolmwater and surface water runoffi B-5: POINTSOURCE CATEGORY (EPA) Transpratioa &oPublic Utility 40CFR. SUB-PART:_

SIC: 4911 SUB CATEGORY: Electrical Services PRODUCT: Electricity PRODUCTION PROCESS: Fev Conversion Steam-Electric PRODucfioN: NIA TON/DAY N/A

~5w. IF THE DISCHARGE IS REGULATED BY EIThER 40 CFR PART413 OR40 CFR PART 433 (metl finishing ereletolating)

INCLIDE A TOXIC ORGANIC MANAGEMENT PLAN. /Ar 1-6: DESCRIBE WASTES TO BE DISCHARGED. Stormwater and smrfaoe water runoff.

3-7: EXMISTNo DISCHARGE? Y IF ES'. ARE WAmS BEING TATED? No IEXPL.AIN AND DESCRIBE ANY LESS THAN FULL TIME OPERATION OF TREATMENT FACITES: No tratmnt reonired.

IF O', GIVE DATE DSCHARGE WILL.COMMENCE. / /.._. WILL WASTES BE TREATED PRIOR TO DISCHAR O NIA 7 EXPLAIN AND DESCRIBE ANY LESS THAN FUILTD4E OPERATION OF TREATMENT FACILITIES:

B4: ARE NEW TREATMENT FACILTIE OR MODIFEATIONS TO EXISTING FACILIIES INDESIGN OR UNDER CONSTRUCWTON? No F SO, DESCRIBE AND PROVIDE SCHEDULE FOR ATFAINMENT OF OPERATIONAL LEVEL

Page 2 of 3

IF DESIGN OF PROPOSED TREATMENT FACILITY REQUIRES A PERIOD FOR DATA COLLECTION. HOW MUCH TIME IS REQUIRED? N/A B-I): DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTAKE WATER, OPERAIJONS CONMRMU1NCO WASTEWATER TO THE EFLUENT AND TREATMENT FACILmES. ATrACH ,NEDRAWING SHOWING THE WATER FLOW THROUGH THE FACILIY: See Attachmet:. "Schematic of Design Maximum Capacity Water flow". Revised May, 2000.

B- 11: VOLUMES OF WASTES, AFTER TREATMENT, IF ANYTO BE DISCHARGED.

(A) SANffARY WASTFS: WEEKDAYS AVERAGE., NA GPD MAXIMUM: N/A GPD WEEKENDS AVERAGE: A GPD MAXIMUM: N/A GPD (B) ALL WATES WEEKDAYS AVERAGE: -N/A GPD MAXIMUMNA& GPD WEEKENDS AVERAGE IA. GPD MAXIMUM NA& GPD WIILDISCHAROES IN (B) ABOVE BE ESSENTIALLY UNIFORM OVER A 12 MONTH PERIOD? Yes IF NOT1 PROVIDE MONTHLY OR SEASONAL BREAKDOWN.

2: IS THE PERSON WHO IS,OR WILL BE, RESPONSIBLE FOR OPERATION AND MAINTENANCE OF THE TREATMENT FACILITY CERTIFIED BY THE AGENCY OF NATURAL RESOURCES AS A TREATMENT PLANT OPERATOR? N/A

• B-13: DESCRIBE THE PROCEURER USED FOR THE DISPOSAL OF A.L SOLIDS, SLUDGES, FILTER BACKWASH OR OTHER POLLUTANTS REMOVED IN THE COURSE OF TREATM OR CONTROL OF WASTEWATERS. INCLUDE DISPOSAL SITE OR LOCATION:jjý

PAGE 3 OF 3 B-14: DESCRIBE THE EFENT CHARACTERISTICS OF WASTES, (B-1 2(A) AND (B) TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIMUM CONCENRATIONS OR RANGE OF CONCENTRATIONS. IF NO CONSTITUENT OF THE TYPE INDICATED ISADDED, ENTER'NONE ADDED". IF CONSITrUENT ISPRESENT IN UNKNOWN OR UNCERTAIN AMOUNT ENTER 'PRESENT' AND DESCRIBE CIRCUMSTANCES RELATING TO ITS PRESENCE1 INCLUDING AMOUNTS OF KNOWN CONSTITUENTS. UNDER (C) REMARKS BELOW.

A. BLOCHENICAL AND PHYSICA CHIARACTERISTICS BODS: not monitored mg/I TOTAL DISSOLVED SOLIDS: none added ng/I COD: not monitored mg/I TOTAL PHOSPHORUS AS P: none added Me TSS: not monitored TOTAL KLDAI-L NITROGEN UMN) none added _me TURBIDITY: not monitred u COWMR .jNA SETILEABLE sousD:, aded mg* MATERIALS AFFECTING TASTE AND ODOR. noe added.

oIL AND OREAS . adde _n TEMPERATURE RANGE. none added FLOATABLE SOulbS: none added -n,&4 pH RANGE. none added B. CHEMICAL CONSTITUENT ARSENiC none added ?T10 MERCU RY: none addeidmg CADMIUM: none added NpKEL rone added mg/I CHLORINE "REE). Mn added m&4i sELENIUM : Done added w4 CHROMIUM (+6): none added m&4I SILVER.: none added CHROMIUM (-3): W ad m/ 2Nc. non added . ,/I COPPER one dded m OTHERS (inClud&ng any odw polubtnt identified as spri typollutmtby EPA in IhcNRDC vL Train CYArnTP- mw"-.S -11 0on11! -eF Pofiuly 9, 1976)

IRON: - now ad,dmd mo LEAD-. none added .me MANGANESE: none added mg/I (c) REMARKS:

(histuedord On rcvms Side)

Pagce I of 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTRIAIJCOMMERCLALINSTITUTIONAL WR-82B CHAPri 47OF7MT1 I0VSA-DATEvM24105 B-k APPUCAMF Enter=v Nuclear Vermont Yankee. LLC AC..Iwy: Steam-Electric Generation B-2. DISCHARGES SN: 007 DESIGNATIONm South Stormwater System B-3: EXAC LOCATION ON REcEivING WATE (desidbe and Locate nap): Station's S discharge structure Latitude: 42w' 46' 45" Lonfitude: 72* 30' 48" B4: NATURI OFACIWITY: Stormwater aMd.surface water runoff for the sod n ortion of t site.

B-5: POINT SOURCE CATEOORY(EPA): TIxxtion & Public Utility 400M 1SUB-PART_.

SIC:4911 SUB CATEGORY: _iectrical Services PODUC.rElectricity PRODUCIONPROC Conve*ion: Steam-Electric PRODUCI1ON: N/A TON/DAY N/A

.5a: IFTHB DISCHARGE IS REGULATED BY E1MIE 40 C0 PART 413 OR 40 CR PART433 (metal .flnisbig orekcctwphfin)

INCWJDE A TOXIC ORGADIIC MANAGEMfr PLAN. NIA B-6. DESCRIBE WA87W TO BE DISCHARGED Stormwater and surface Water runff.

B-7: EXISTING DISCHARGE? Y-S p_ "YES. ARE WAmEs BEINGUEA1 370 EXPLAIN AND DESCRIBE ANY LESS HNm FUJL~wBopERA1Tso oPTEEAmwFTA(LTI1- NoftratmentrEgunited.

F -NO.,GIVE DATE DISCHAGE WAEL'COMM .,_J. WILL WASTES BE TREATED PRIOR TO DISCHARGE? NIA EXPLAIN AND DESCRIBE ANY LESS THAN FULLThME OPERATION OFWT TMENT FACRIITIS:

B4k ARE N1W TREA M7ENTPFACUIES OR MODIICATIONS TO EUTNG FACIIZJIBS IN DESIGN OR UNDER CNSTUCTION?. FSO, DESCRIBE AND PROVIDE SCHEDULE FOR ATrAINMENT OF OPERATIONAL.

LUrEL

Page 2 of 3 B-9: IF DESIGN OF PROPOSED TREATMENr FAClY REQUIRES A PERIOD IOR DATA COLECTION. HOW MUCH TIME iS REQUIRED? N/A B4o:. DESCRIBE FLOW sEQUENC OF DISCARGE. INCLVDING SOURCE OF n'AKE WATER. OPERATIONS CON'mtmNo WASTEWATER7 TOE EFRLUEN AND iREATmENT FALuIE. ATrAcH LN DRAWING SHOWING THE WATER PLOW THROUGH THE ACaLnY:. See Attahmet "Schematic of Design Maximum Capacity Water flow". Revised May, 2000.

B-I1: VOLUMES OF WASTES, AF*ER TREATMI , IF ANY,'O BE DISCHARGED.

(A) SMMY WAM WEEKDAYS AVERAOGEhj:GPD MAXIMUM: N/A m WEEKENDS AVERAGEL. N/A GPD MAXIMUM; _WA G

-=wa . IA_

mys~ER~a:_ PD A~ammN&GPD WEEKENDS AVERAGM GPD MAXMUM M WILL DISCHARGES IN (B) ABOVE BE ESSENTiALLY UNMORM OVER A 12 MONTH PERIOD? Yes IF NOTI PROVIDE MONTHLY OR SEASONAL BREAKDOWN:

• 2* IS THE PERSON WHO IS, OR WILL BE. RESPONSIBLE FOR OPERATION AND MAINTENANC. OFTHE TREATENT FACILTY CERTIFIED BY THE AGENCY OF NATURAL RESOURCES AS AIREAAmhEFPLANT OPERATOR?2&A B-13: DESCRIBE TIlE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLIDS, StJJDGES, FILTER BACKWASH OR OTHER POLLUTANTS REMOVED IN THE COURSE OF iREATMENT OR COmIOL OF WASTmWAms. INWUDE DISPOSAL SITE OR LOCATION: NI

PAE3 OF 3 DESCRIBE THE E UEff HAR ERISCTIMOF WASIES. (B-12(A) AND (B)TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXMUM CONM AN OR RANGE OF CONCEN O IF NO CONSiT r OF THE TYPE INDICATED IS ADDED, ENTER NONE ADDED!. IF CONSTITUENT IS PREWST IN UNKNOWN OR UNCERTAIN AMOUNT ENTER 'PRESENT" AND DESCRIBE CIRCUMSTANCES RELATRNG TO nIS PRESINCEI INCLUDING*

AMOUNTS OF KNOWN CONISIIUENMS, UNDER (C) REMARKS BELOW.

A. BIOC(ENICAL AND PHYSCALJ*(RAQERT BODS: not monitoe 'isg/l TOTAL DISSOLVED SOLIDS: noýe added COD. not monitored mgJ TOTAL PHOSPHORUS AS P. none added .Mg/l TSSý not onitored mgf TOTAL KJ ilA,NrrROGEN (oKN) neadded mg,'

TuRmmY: not monitored ____ CILOR. N/A SET*nBABiz soum o added mc MATRAs AFfwpm TASTE AND ODOR: 3no added.

OILAND GREASE o added_ TMPATuRE RANOGR none added FLOATABLE, SOLIDS: non added mg/l pH RANGE: none added B. CN ARSENIC: -none added MCA MERCURY: -none added4_m_

CADMIUM- none added me NiCKEL- none added m&4 CIUORINB (FREE)- none added wagh sEUmm -none aded mgn coromwm (+6): none added ,mv SILVER: none added mpi'l CHROMIUM (+3): Mw Wo4~ mg/I ZN: none added _ m&.*

COPPER none added mffi OanERS Cmdwdng any otherpollutant idetifd as s pidity poutant by EPA in the NRDC wL Trin CYANIDE. none added consent dmweo(Jn*y8, 1976)

IRON! ionn rfnf N .. T w*

ttlAr%. ý *AA.A -- I' L-- - - -w.

MANGANESE: none added .mg/

(C) REMARKS:

(buctions on revese si)

Pap I of 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTRIALICOMMERCIAL/INSITIUTIONAL WR-82B CHAPTER47 OFTITLE 10 VSA.

DATE: 8/24/05 B-L- APPUCANT: Emter=v Nuclear Vermont Yankee, LLC ACnVfIY: Steam-Electric Generation B-2: DISCHARGES SN: 008 DESIGNATION: Southeast Stormwater System B-3: EXACT LCAION ON RECEIVING WATER (de&r=ue ad Locae on trp. Southeast cme of site prot (50 ft southeast of southfield ,oundwater monitoring well WVN 0204 (residuals Mgt moitoing well)

Wutitkd 420 46--45" Lntd-72" 30' .48" B4: NATURE OF ACTIVITY: Stornwater and surface water runoff for the southern portion of the site, B-5: POINT SOURCE CATEGORY (EPA). Trja orton &.PublicUtility 40CFR.SUB-PART:_

SIC: 4911 SUB CATEGORY: Elecical Services PRoDUCT: Electricity PRODUCTION PROCESS: EnMv Convesion: Steam-Electric PROyDucN: N/A TONDAYEA_

B-Sa: IF THE DIS CHARGE ISREGUIATEDY ETIER40 CFRPART413 OR40 CFRPART433 (mea finihg oreiectophtingl INCLUDE A TOXIC OROMAiC MANAGEMNUPLAN.NIA I-6: DESCRIBE WASTES TO BE DISCHARGED:. Storngwater and Surface water rnooff.

B-7: EXISTING DISCHAROG YES IF YES'. ARE WASTES BEING TREATED? No EXPIJJN AND DESCRIBE ANY LESS THAN FUL TIME OPERATION OF TREATMENT FACInIES: No teatnent reourd.

IF NO-, GIVE DATE DISCHARGE WILL COMMENCE:. / I . WILL WASTES BE TREATED PRIOR TO DISCHARGE?. /A EXPLAINAND DESCRIBE ANY LESS THAN FULLTIME OPERATION OFTREATMENT FA.CUIJTIES:

4-8: ARE NEW TREATMENT FACILTiES OR MODIFICATIONS TO EXISTING FACMrILES IN DESIGN OR UNDER CONSTRUrIION? N IF SO, DESCRIBE AND PROVIDE SCHEDULE PORATrAINMENT OF OPERATIONAL LEVEL

Page 2 of3 B-9: IF DESIGN OF PROPOSED TREATMENT FACILITY REQUIRES A PERIOD FOR DATA COLLECTION. HOW MUCH MME ZS REQUIRED? N/A a-1O: DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTAKE WATER, OPERATIONS CONTRIBUTING WASTEWATER TO THE EFFLUENT AND TREATMENT FACxnEs. ATTACH LINE DRAWING SHOWINGT-E WAERM FLOW THROUGH THE FACILnI: See Attacnt "Schematic ofDesisn Maxmm Caacit Water flow". Revised May. 2000.

B-1l: VOLUMES OF WASTES, AFTER TREATMENT, IF ANY,TO BE DISCHARGED.

(A) SAfAR FS: WEEKDAYS AVERAGOE _. N/A GPD MA)XIM: N/A GPD WEEKENDSAVERAGE: N/A ,GPD MAXIMUM: N/A GPD (8) A WEEKDAYS AVERAGE N/A GPD MAXIMUM. & GPD WEEKENDS AVERAGE: N/A GPD MAXIMUM N/A GPD WILL DISCHARGES IN (B) ABOVE BE ESSENTIALLY UNIFORM OVER A 12 MONTH PERIOD? Yes IF NOTI PROVIDE MONTHLY OR SEASONAL BREAKDOWN:

B-12: ISTHE PERSON WHO IS,OR WILL BE, RESPONSIBLE FOR OPERATION AND MAINTENANCE OF THE TREATMENT FACILITY CERTIFIED BY THE AGENCY OF NA'WURAL RESOURCES AS A TREATMENT PLANT OPERATOR? N/A 13-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLIDS, SLUDGES, FILT BACKWASH OR OTHER POLLUTANTS REMOVED IN THE COURSE OF TREATME OR CONTROL OF WASTEWATERS INCJDE DISPOSAL SITE OR LOCATION: N/A.

PAGE 3 OF 3 B-14: DESCRIBE THE EFFLUENT CHARAC IS OF WASTES, (B-12(A) AND (B)TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIMUM CONCENTRATIONS OR RANGE OF CONCENTRATIONS. IF NO CONSMTFUENT OF THE TYPE INDICATED IS ADDED, ENTER 'NONE ADDEID. IF CONSTITUENT IS PRESENT INUNKNOWN OR UNCERTAIN AMOUNT ENTER "PRESEN AND DESCRIBE CIRCUMSTANCES RELATING TO ITS PRESENCE, INCLUDING AMOUNTS OF KNOWN CONSTIMENTS, UNDER (C) REMARKS BELOW.

A. BD:CHENICAL AND PHYSIA CHARACTERISTICS CODS: not monitored TOTALDISSOLVED SOLIDS: none added m/

COD. not monitored / nI TOTAL PHOSPHORUS AS P: none added TSS:*not monitored mg/I TOTALKI)DARLNrrROGEN (TrKN none added mng TURBIDITY: not monitored 7r COLOR:- NA SErTEABLE SOI.DS: none added -mo - MATEPIAS AFFECTING TASTE AND ODOR: none added.

OIL AND GRE - none added mI TEMPERATURE RANGE: none added FLOATABLE SOLIDS: none added mg/i pH RANGE: none added B. CEIACE~iET ARSENIC: none added u*/ MERCURY: none added mg/I CADMIUM: none added .. gI NICE none added mg/I a*omnm (apR.E): noe ,Wded mo SELEIUM: none added mg/W CHROMmiJM (+6): none added ng/ S-Vm- none added mg/I CHROMIUM (+3): one added me ziNC non added rag/n COPPER none added mg/l TER (including any oder pollutant idmetied as apdory pollutant by EPA in fhe NRDC vs. Train CYANIDE._ nonepadded mg/I consent decree of July S, 1976) 1D^Iky.

nowu omij I LEAD- none added _ Mg/

MANGANESE: none added mg/I (C) REMARKS:

(huct'ons on reveme side)

PweI of 3 STATE OF VERMIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENMVONUMEAL CONSERVATION SCHEDULE B: INDUSTRIAL/COMMERCIAI/INSTITUTIONAL WR-82B CHAPTER 47 OF TITLE 10 VSA-.

DAMI* 8/24/05 B-I: APPucANT: Ent=r~y Nuclear Vermont Yankee, LLC ACTIVITY: Sten-Electric Generation B-2: DISCHARGES SN: 009 DESIGNATION: Strainer and Travelinm Screen Backwash B-3: EXACT LOCATION ON RECEIVING WATER (desci'bc and Loca on nap): Station's Intake StructUre

_Latitude:42" 46' 45" Long tde: 72 30' 48" 114: NATURE OF AcTIVITY: Backwashin? of coolin! water intake structu traveling screens using Connecticut River water B-5: POINTSOURCE'CATEGORY(EPA) Tran tion & Public Utlt 40 CFR. SUB-PART:

SIC: ,4911 SUB CATEGORY: Electrical Services PRODUCT: lectri c y PRODUCTION PROCESS: EnerDy Conversion Steam-Elecric PRODUCTIN: N/ATO ONAY N/A

-Sa: IF THE DISCHARGE ISREGUlATED BY EIlTHE 40 CFR PART 413 OR 40 CFR PART 433 (metal finishing or lectroplating),

,INCLDE ATOXIC ORGMNIC MANAGEMENT PLAN. MIA B-6: DESCRIBE WASTES TO BE DISCHARGE! Connecticut River water used to backwash seice water stainers and circlating water fraveling reens that could contai a mi*natl concentration of NPDES Permit amnve*d pnenetrant/biodisVersent B-7: EXSTG DISCHARGE? _IF "YES'. ARE WASTES BEING TREATED *oEXPLAIo AND DESCRIBE ANY LESS THAN FRLL TIME OPERATION OF TREATMENT FACIUIES: No trtment rereMd IF NNO. GIVE DATE DISCHARGE WILL COMMmENCe / / WILL WASTES BE TREATED PRIOR TO DISCHARGE? N EXPLAIN AND DESCRIBE ANY LESS THAN FULL TIME OPERATION OF TREATMIEN FACIUTIEs: There are no treatment facilities for the removal of the insiMificant amount of the venetrant/biodisMersnt used to reduce biofoulina of Station piping. All discharges via SN 009 pass tin-ouch a retention basket with 3/8 in. mesh renin= desiggnd to remove debris ixnined on the traveling screens, including leaves, wood, and rss,. All debris is d'tsosed of according to state and federal reukerNts.

84: ARE NEW TREATMENT FACILTIES OR MODIFICATIONS TO EXISTiNG FACRITIES INDESIGN OR UNDER CONSTRICTIONM No IF SO DESCRIBE AND PROVIDE SCHEDUM FOR ATTAIMEýT OF OPERATIONAL LEVEL

Page 2 of 3 B-9: IF DESIGN OF PROPOSED TREATMENT FACILMY REQUIRES A PERIOD FOR DATA COLLECTION. HOW MUCH TIME IS REQUIRED? VA B4oO: -DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTiAKE WATER, OPERATIONS CONTRIBUTING WASTEWATER TO "7EEFFLUENT AND TREATMENT FACIITlIES. ATTACH LINE DRAWING SHOWING THE WATER FLOW THROUGH THE FACILITY: Serce water prons use river water to sME&ly water to the strainer and traveling screen backwash e.ui"mmnt Backwashed water goes to a retention basket which drains via ra vity back to the river at the Station's intake sticture. See

Attachment:

"Schematic of Desigg Maxinmm Capacity Water flow".

Revise*d May. 2000.

B.11: VOLUMES OF WASTES, AFTER TREAT-EN, IFANYTO BE DISCHARGED.

(A) ,SANir,SWASFS: WEEKDAYS AVERAGE. N/A GPD MAM : VA GPD WEEKENDS AVRAE," _N/A GPD MAXIMUM; N/A GPD (B)&LOTEWAS WEEKDAYS AVERAGE. 17)000 GPD MAXMUM GPD WEEKENDS AVERAGE:- 17,000 GPD MAXIMUM SM GPD WILL DISCHARGES IN (B)ABOVE BE ESSENTIALLY UNIFORM OVER A 12 MONTH PERIOD? No. Straine and traveling sreen backwashes are more fe.nqent during R-riods of higb flow and debris loads (fall leaf drop for example)

F NOTPROVIDE MONTiY OR SEASONAL RLAKDXWN Seasonal breakdown: Backwashes are more frM.q t during spm runoff whe biah river flows carry large vohmes of debris down the river and again in the fall when deiduous btees shed their leaves.

B-12: IS THE PERSON WHO IMOR WILL BE. RESPONSIBLE FOR OPERATION AND'MAINTENANCE OF THE TREATMENT FACILITY CERTIFIED BY THE AGENCY OF NATURAL RESOURCES AS A TREATMENT PLANT OPERATOR? N/A B-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLIDS, SLUDGES, FILTER BACKWASH OR OTHER POUITANTS REMOVED IN THE COURSE OF TREATMENT OR CONTROL OF WASTEWATERS. INCLUDE DISPOSAL SITE OR LOCATION: Debris from this pocess is collected in the intake structure's retention basket The contents of this basket is routinely cleaned out and all debris is deosited into a dumneter for diLspWo at a waste diM facility.

PAGE 3 OF 3

ýý B-14: DESCRIBE THE EFFLUENT CHARACTERISTICS OF WASTES, (B-12(A) AND (B)TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIMUM CON TTIONS OR RANGEOF CONCENTRATIONS. IF NO CONSTITUENT OF THE TYPE INDICATED ISADDED, ENTER -NONE ADDED". IF CONSTITUENT IS PRESENT IN UNKNOWN OR UNCERTAIN AMOUNT ENTER -PRESENr AND DESCRIBE CIRCUMSTANcES RELATING TO ITs PRESENCEt INCLUDING AMOUNTS OF KNOWN CONSTITENTS, UNDER (C) REMARKS BELOW.

A. BIOCHWNICAL AND PHYSICAL CHARACTERISTICS BODS: not monitored mg/ TOTAL DISSOLVED SOLIDS: none added , ,4 COD: not monftored me TOTALtPHOSPHORUS AS P. none added g/

TSS: not monitored m/

TOTALKIELDAHL NTROGEN (TKN) none added.mg/

TURBIDITY: ,notmonitored fTU COLOR. N SETTLEABLE SOLIDS: none added _gi& MATERAImAS FFECTING TASTE AND ODOR. none added.

OIL AND GREASE. none added mgA TEMPERATURE RANGE- 35F to 82F FLOATABLE SOLUS: none added mg/A pH RANGE 6.0 - 7.5 Su B. CA NSTrTI ARSENIC: none added .mll MERCURY: none added mg/I CAhmm: Rmnone added m/ NCKEL: pone added mg/

C*R* (FEM: none added mgI ssLwum:nol'added m/

CHROMIUM (+6) none added Tg/ SILVER:-pojk 44ded CHROMIUM (+3): Done added mg/I .nq none added m,,

COPPER, none added we OTHERS (Cmduing any o pollutant idenified as s priorty pollutant by EPA in the NRDC vs. Train

-a -- ý -- -- --- - "wl I consat dcne ofJuzy S, 1976)"

IRDN:- pone addedl _vwq Pcretent/DiodiWMc! Max = 30 MWL LRAD)_

M-All MANAE: pone added mz/

((Asbnctions on rTs side)

Pape of 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTRIAI/COMMERCLAIJINSITUTIMONAL WR-82B CHAPTER 47 OF TITLE 10 VSA.

DATE. 824/05 B-L APPLIANT: Enter Nuclear Vermont Yankee. LLC ACflrTY: Steam-Electric Generationi B-2: DISCHARGES SN: 010 DESIGNATION: 345 KV Switchyard Stormwater Discharge 3-3: EXACr LOCATION ON RECEIVING WATER (dse'be amw Locate on map): AMproxmitely 300 yards north of the Station's discharge struct=. Latitude: 42' 46. 45" Lonaitude: 72' 30' 48" 34: NATURE OF ACTIVITY: Storrwater rtnoff from 345 switcylard.

B-5: POINTSOURCECATEGORY(EPA): .Transrtation&.PubcUtility 40cOR. SUB-PART:

SIC: 4911 SUB CATEGORY: Electrical Services PRODUCT: Electricity PRODUCTIONPROCESS: FrlergY Conversion: Steam-Electric PRODUCTION: N/A TON/DAY N/A sa: IF THE DISCHARGE IS REGULATED BY EMHER40 CFRPART413 OR40 CFRPART433 (meta findshing orelectrplating),

INCLUDE A TOXIC ORGADEIC MAXAUEMENr PLAN. NMA B-6: DESCRIBE WASTES TO BE DISCHARGED. Stormater rtmoff.

8-7: EXISTING DISCHARGE? YS IF . ARE WASTEs BEING TREATED? No EXPLAIN AND DESCRIBE ANY LESS THAN FULL TIME OPERATION OF TREATENT FACuTIES: No treatnent rmreu .

IF -NO', GIVE DATE DISCHARGE WILLCOMMENCE: I I . WILL WASTES BE TREATED PRIOR TO DISCHARP.ENIA EXPMAIN AND DESCRIBE ANY LESS THAN FULL TIME OPERATION OF TREATMENT FACILITIES:

-84: ARE NEW TREATMENT FACILITIES OR MODIFICATIONS TO EXISTING FACIITIES IN DESIGN OR UNDER CONSTRUCTION?7*No IF SO. DESCRIBE AND PROVIDE SCHEDULE FOR ATTAINMENT OF OPERATIONAL

• LEVEL

Pagc2 of 3 B-9: IF DESIGN OF PROPOSED TREATMENT FACILITY REQUIRES A PERIOD FOR DATA COLLECTION. HOW MUCH TIME IS REQUIRED? N/A B-K): DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTAKE WATER. OPERATIONS CONTRIBUTNG WASTEWATER TO THE EFFLUENT AND TREATMENT FACILITIES. ATTACH LINE DRAWING SHOWING THE WATER FLOW THROUGH THE FACILITY: See Agachment: "Schematic of Design Maximm Capacity Water flow". Revised May, 2000.

B-I1I: VOLUMES OF WASTES, AFTER TREATMEINT, IF ANYTO BE DISCHARGED.

(A) SANffARy wAsTFs: WEEKDAYS AVERAGE_ NIA, GPD MAXUM: NIA G PD WEEKENDS AVERAGE: N/ApGPD MAXIMUM: N/A GPD (B)A*L QTR WASTES EKDAYS AVERAGE:- NIA GPD MAXIMUM N/A GPD WEEKENDSAVERAGE._ N/A GPD MAXIMUM nA GPD WILL DISCHARGES IN (B) ABOVE BE ESSENTIALLY UNIFORM OVER A 12 MONTH PERIOD? Yes IF NOT, PROVIDE MONTHLY OR SEASONAL BREAKDOWN:

'-12: IS THE PERSON WHO IS, OR WILL BF. RESPONSIBLE FOR OPERATION AN) MAINTENANCE OF THE TREATMENT FACILITY CERTIFIED BY THE AGENCY OF NATURAL RESOURCES AS ATREA7MEN PLANT OPERATOR? N/A B-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLID, SLUDGES, FILTER BACKWASH OR OTHER POLLUTANTS REMOVED IN THE COURSE OF TREATMENT ORCONTROL OF WASTEWATERS. INCLUDE DISPOSAL SITE OR LOCATION: N/A.

PAGE 3 OF 3 DESCRIBE THE EFFLUENT CHARACTERISTICS OF WASTES, (B-12(A) AND (B)TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIMM CONCNTRATIONS OR RANGE OF CONCEWMTIONS. IF NO CONSTITUENf OF THE TYPE INDICATED IS ADDED, ENTER -NONE ADDED'. IF CONSTITUENT ISPRESENT IN UNKNOWN OR UNCERTAIN AMOUNT ENTER "PRESENT AND DESCRIBE CIRCUMSTANCES RELATING TO ITS PRESENCE1 INCLUDING AMOUNTS OF KNOWN CONS ,UNTS0 UNDER (C) REMARKS BELOW.

A. BnoYtmoCAL AND CHRAC-TRISTICS mIgIYS/AL BOD5: not monitored mI TOTAL DISSOLVED SOLIDS: none added rmg/

COD: not monitored m TOTAL PHOSPHORUS AS P: none added mg/I TSSo ntored m TOTAL KMDAHLrTROM (TN; noneadded _nv/

TumBmrY: not montored COLOR:. R!A sETrLEABLE SOLIDS: none added mg MATERIAL~S AFFECTING TASTE AND ODOR.EMWe OIL AND oREAs - none dded TEMPERATURE RANGE none added FLOATABLE SOLIDS: none added mg/I pH RANGE. none added B. CHEMIALCO0V ARSENIQC ione added mg/I MERCURY: none added ng/I CADMIUM: none added _n*/ NICKEL none added ng.

CHLORINE 4_msnon addevd mAg SELENIUM: onw ijded To.9g CHROMIUM (+6 oe MWadded mg/ SILVERL none added mn/I iNu:. none added mgn CHROMM (+3): none added me COPPEk none added mv/I OTHERS (inc'lding any ofhe pollutant idntifie as s primdty pollutant by EPA in the NRDC vY.Train CYANIDE. .none added -Me consent decr ofJuly 8, 1976)

IRON: none added ý mg/

LEAD: none added m MANGANESE: none added mel (C) REMARKS:

(lnstztons on reveme side)

Plg I of 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTR AICOMMERCIAL/INST1TUTIONAL WR-82B CHAPTER 47 OF TIThE 10 VSA..

DATE. 8124105 B-I: APPLICANT: Entermy Nuclear Vermont Yankee. LL. ACnivY:. Steam-Electric Generation B-2: DISCHARGES SN: 011 DESIGNATION: 115 KV Switchard Stormwat'r Discharge B-3: EXACT LOCATION ON RECEIVING WATER (descnbe and Locate on mp): Aproxim-t*ey 350 yards north of the Station's discbare structure. Latitude: 42 46' 45" Longude: 72* 30' 48" 14: NATUJRE OF ACTIVITY: Stormater ruoff from I15 switchyard.

B-S: POINT SOURCE CATEGORY(EIPA) TJMnotation &PublcUtilitV 40 CFR. SUB-PART:

SiC: 491L -SUB CATEGORY: Electrical Services PRODUCT: Electricity PRODUCT;ON PROCESS: ee C.onvRMgion. Steam-Electric PRODUCnON: N/A TON/DAY N/A 5a: IFTHE DISCHARGE ISREGULATED BY EMIER40 CFR PART413 OR40 CFR PART433 (metal finishing orclrpblating),

INCLUDE A TOXIC ORGAfNIC MANAGEMENTPLAN. N/*A B-6: DESCRIBE WASTES TO BE DISCHARGED: Stormwater rnmoff B-7: EXSTING DISCHARGE? YES W YES'. ARE WASTES BEING TREAT No -EXPLAIN AND DESCRIBE ANY LESS THAN FULL T.ME OPERATION OF TREATMENT FACMLTIES: No treatment rectuired.

IF NOR, GIVE DATE DISCHARGE WILL.. COMMENCE: I I . WILL WASTES BE TREATED PRIOR TO DISCHARGE? N/A EXPLAIN AND DESCRIBE ANY LESS THAN FULLThME OPERATION OF TREMENT FACILITIES:

B48: ARE NEW TREATMENT FACILITIES OR MODIFICATIONS TO XISTING FACIKIIMES IN DESIGN OR UNDER CONSTRUCTION? No IF SO, DESCRIBE AND PROVIDE SCHEDULE FOR ATTAINMENT OF OPERATIONAL LEVEL

Pa2 of 3

• -9: IF DESIGN OF PROPOSED TREATMENT FACILTY REQUIRES A PERIOD FOR DATA COLLECTION. HOW MUCH TIME IS REQUIRED? N/A B-10: DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTAKE WATER. OPERATIONS CONTRIBUTING WASTEWATER TO THE EFUjENT AND TREATMENT FACILITIES. ATTACH LINE DRAWING SHOWING THE WATER FLOW THROUGH THE FACILITY: See

Attachment:

"Schemtic of Design Maximum C~aacity Water flow". Revised May. 2000.

B-I1: VOLUMES OF WASTES. AFTER TREATMENT, IFANYSTO BE DISCHARGED.

(A) s WEEKDAYS AVERAGE: N/A GPD MAXIMUM: N/A GPD WEEKENDS AvERAOh N/A .GPD MAX* IM: NA .GlD (B) ALL OTHER WASTES: WEEKDAYS AVERAGE- N/A GPI) MAXIMUMN GPD WEEKENDS AVERAGE. N/,A .GPD MAXIMUM N9A GPD WILL DISCHARGES IN (8) ABOVE BE ESSENTIALLY UNIFORM OVER A 12 MONTH PERIOD? Yes IF NOT: PROVIDE MONTHLY OR SEASONAL BREAKDOWN:

,2: IS THE PERSON WHO IS, OR WILLBE, RESPONSIBLE FOR OPERATION AND MAINTENANCE OF THE TREATMENT FACILITY CERTIFIED BY THE AGENCY OF NATURAL RESOURCES AS A TREATMENT PLANT OPERATOR? N/A B-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSAL OF ALL SOLIDS, SLUDGES FILTER BACKWASH OR OTHER POLLUTAIM REMOVED IN'THE COURSE OF TREATMENT OR CONTROL OF WASTWA"RS. INCLUDE DISPOSAL SITE OR LOCATION: N/A.

PAGE 3 OF 3 DESCRIBE THE EFFLUENT CHARACTIJUSTICS OF WASTES, (B-12(A) AND (B)TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIMUM CONCENTRATIONS OR RANGE OF CONCENTRATIONS. IF NO CONSTITUENT OF THE TYPE INDICATED IS ADDED, ENTER "NONE ADDED". IF CONSTTIUENT ISPRESENT IN UNKNOWN OR UNCERTAIN AMOUNT ENTER "PRESENTl AND DESCRIBE CIRCUMSTANCES RELATING TO ITS PRESENCE, INCUnDING AMOUNTS OF KNOWN CONSIT-UENTS, UNDER (C) REMARKS BELOW.

A. BIOCHITCAL AND PHYSICAL CHJRACTSICS BOD5: not monitored mI TOTAL DISSOLVED SOLIDS: none added mg/

COD: not monitored ngI TOTAL PHOSPHORUS AS P: none added mI TSS: not monitored mg/I TOTAL KJELDAHL NITROGEN (IKN); none added mg/o TURBIDfTY: not mntoroed mJ COLOR: N/A SETrEABLE SOLEDS: none added mg/I MATERIALS AFFECTING TASTE AND ODOR:.none added.

OIL AND GREASE. none added _me/ TEMPERATURE RANGE: none added FLOATABLE SOLIDS: none added mg/I pH RANGE. none added B. CHEMI"ALCONSIrU'r ARSENIC none added ngI MERCURY: none added mg/I CADMIUM: none added nM&I NICKEL none added gI CHLORINE (FREE):* one added mg4 SELNum: none added mg4 CHROMIUM (+6) none added mg/I SILVElt none added mgA CHROMIUM 0+3): none added mg/i ZINC: none added mg/

COPP none added Wl OTHERS (rmcxding any odw pollutant kdntified as s pririty poldtant by EPA in ft NRDC vs. Trin CYANIDE: none added A csnt de==e of Jtly , 1976)

IfmA. i g",

AA.-A LEAD: n.ne we I MANGANESE: none added mgA (C) REMARKS:

(nstructos on revese side)

Pao: I of 3 STATE OF VERNIONT AGENCY OF NATURAL RESOURCES DEPARTMENT OF ENVIRONMENTAL CONSERVATION SCHEDULE B: INDUSTRIAPLCOMMERCIALANST1TUTIONAL WR-82B CHAPTER 47 OF TITLE 10 VSA..

DATE: 8/24/05 B-I: APPUCANT: Entera Nuclear Vemont Yankee. LLC AcIvlry: Steam-Electric Generation U-2: DISCHARGES SN: 012 DESIGNATION: Stormwater runoff from new Raryel Iardng lot B-3: EXACT LOCATION ON RECEIvONG WATER (descmbe and Lca* on map): Approximately 500.yards north of the Stato's dischrge strucýre, Latitude: 42 46' 45" Longaitde: 72r 30' 48" 4.& NATURE OF ACTVITY:.Stm*o ter runoff from 115 sfwitchcrd.

B-5: POINTSOURCE CATEGORY (EPA): "rastMtion &Publi Utfity 40 CR. SUB-PAR __

sic 4911 sUBCATEoORY: Electrical Services PRODUCT: lecMcity.

PRODUCTION PROCESS.: FaM Con on Steam-Electic PRODUCTION: N/A TON/DAY N/A iI-S*: FTHE DISCHARGE ISREGULATED BY EITHER 40 CFRPART413 OR40 CFR PART 433 (recta finishing orcecoplating)

INCLUDE A TOXIC ORARN MANAG4ENT PL*A,. NIA 8-6: DESCRIBE WASTES TO BE DISCHARGED: -Srmmgtrnmof B-7: EXISTING DISCHARGE? YES jF -YES*. ARE WASTES BEING TREATED? No EXPLAIN AND DESCRIBE ANY LSS TAN FUL TM OPE.AION OF TRFAENT FAC  : No treatment required.

IF 14O0, GIVE DATE DISCHARGE WILL COMMENCE- I I . WILL WASTES BE TREATED PRIOR TO DISCHARGE.? N, EXPLAIN AND DESCRIBE ANY LESS THAN FULL TIME OPERATION OF TREAldNT FACUlTES:

4-8: ARE NEW TREATMENT FACKIZI OR MODIFICATIONS TO EXISTING FACTXLIIES IN DESIGN OR UNDER CIONSTRRUMON? No IF SO. DESCRIBE AND PROVIDE SCHEDULE FOR ATTAINMENT OF OPERATIONAL LEVEL

Pagc 2 of 3 B-9: IF DESIGN OF PROPOSED IREATMENT FACILITY REQUIRES A PERIOD FOR DATA COLLECTION. HOW MUCH TIME IS REQUIRED? N/A B-4O: DESCRIBE FLOW SEQUENCE OF DISCHARGE. INCLUDING SOURCE OF INTAKE WATER, OPERATIONS CONTRIBUTING WASTEWATER TO THE EFFLUENT AND TREATMENT FACILITIES. ATTACH LINE DRAWING SHOWING THE WATER FLOW THROUGH THE FACu-LIY: See Attachment "Schematic of Design Maximum Capacity Water flow". Revised May, 2000.

B-I 1: VOLUMES OF WASIES, AFTER TREATMENT, IF ANY,TO BE DISCHARGED.

(A) SANfTARY WASTES: WEEKDAYS AVERAGE, N/A GPD MAXIMUM: N/A GPD WEEKENDS AVERAGE: .... NJA GPD MAXIMUM:. N/A GPD

• (B) &.LOTElASThS WEEKDAYS AVERAGE: NIA GPD MAXIMUM A GPD WEEKENDS AVERAGE. N/A GPD MAXIMUM LVA GPD WILL DISCHARGES IN (B) ABOVE BE ESSENTIALLY UNIFORM OVER A 12 MONTH PERIOD? Yes IF NOT, PROVIDE MONTHLY OR SEASONAL BREAKDOWN:

8-12: IS THE PERSON WHO IS, OR WILL BE, RESPONSIBLE FOR OPERATION AND MAINTENANCE OF THE TREATMEýNT FACIITIY CERTIFIED BY THE AGENCY OF NATURAL RESOURCES AS A TREATMENT PLANT OPERATOR? N/A B-13: DESCRIBE THE PROCEDURES USED FOR THE DISPOSALOF ALL SOLIDS, SLUDGES, FILTER BACKWASH OR OTHER POLLUTANTS REMOVED INTHE COURSE OF TREATMENT OR CONTROL OF WASTEWATERS. INCLUDE DISPOSAL SITE OR Loc.mom N/A.

PAGE 3 OF 3

ýýB-14: DESCRIBE THE EFUJENT CHARACTERISTrCS OF WASTES. (B-12(A) AND (B)TO BE DISCHARGED WHICH YOU KNOW OR HAVE REASONS TO BELIEVE ARE PRESENT. PROVIDE MAXIWMMCON RATIONS OR RANGE OFCONCENTRA'IONS. IF NO CONSIUENT OF THE TYPE INDICATED IS ADDED, ET "NONE ADDED". IFCONSTITUENT ISPRESENT INUNKNOWN OR UNCERTAIN AMOUNT ENTER PRESENT" AND DESCRIBE CIRCUMSTANCES RELATING TO ITS PRESENCE, INCLUDING AMOUNTS OF KNOWN CONSiTITENTS, UNDER (C) REMARKS BELOW.

A. BMOMMAND PHYSICAL CHARAMTEICST BODS: not monitored - mg/I TOTALDISSOLVED SOLIDS: none added rng/

COD: not monitored mg/I TOTAL PHOSPHORUS AS P: none added mg/l TSS: not monitored mg/I TOTAL KJELDAHL NITROGEN (KN); none added -mg/

TJRBIDrFY: not monitore n-u COLOR:-N/A SETTLEABLE SOLI: none add _m&/I MATERIALS AFFECTING TASTE AND ODOR: none added.

OIL AND oRAS., none added me/. TEMPERAT*RE RANGM: none added FLOATABLE SOLIDS: none added mg/I pH RANGE none added B. 09N ONSIUMT ARSENIC- none adde*d MERCURY: none added ,mg/

CADMIUM: none added . mg4 N.M none added mg/I CHLORINE (FREE): none added rm SELENRIUM: none added mg/I CHROMIUM (+6) none added mgI siLvER. none added mg CHROMIUM (+3): noe added m*4 ZINC none added m&g4 COPPER none added m-/W OTHERS (including any oda pollutant idenbW as Spdrity pollutznt by EPA in the NRDC vs. "Wn CYANIDE: none added _n consent deom ofJluly 8, 1976)

IRON: none added fl,,t LEAD: e none m added I

• nwMA w* i MANGANESE: none added m/

(C) REMARKS:

(Instructions on evers side)

Attachment B NPDES No. VT0000264 Permittee: Entergy Nuclear Vermont Yankee, LLC 320 Governor Hunt Road Vernon, VT 05354 Entergy Nuclear Vermont.Yankee requests the Vermont Department of Environmental Conservation, Wastewater Management Division consider the following requested.

changes to the Station's NPDES Permit at this time of renewal.

Change No. 1. -SIN 001 Circulating water discharge/main condenser cooling and service water.

At the bottom of Page 2, change footnote "b" to read "Oxidant or chlorine injection is limited to discharge during closed cycle only and detectable residuals are not to exceed'2 hour2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />s/day with the exception that the service water system may be treated during open/hybrid cycle with no detectable oxidant being measured at the discharge structure".

Reason for requested'change: Since the NPDES Permit stipulates that no oxidant or chlorine can be detected at the discharge structure during service water treatments, VY is requesting that the limit on treatment duration, for service water only*be removed. This provides flexibility to the Station in combating biofouling of the service water system while maintaining the intent of the permit by continuing to not allow any discharge of oxidant to the river.

Change No. 2. Delete SIN 005 - Minor Cooling Water from Residual Heat Removal Service Water Pump motors - from the NPDES Permit, page 4. naramraph 5.

Permit Basis and Explanation for requested change: SIN 005 is a minor cooling water sipiply to 4.motors in the Residual Heat Removal Service Water (RHRSW) system.

The motors, in turn, are coupled to pumps whichprovide cooling water to the Residual Heat Removal Heat Exchangers. The cooling water to the motors is limited to 46,500 gpd. The water runs through the motor coolers continuously. The purpose of the cooling water is to cool the motor bearing oil within the motor and extend the life of the bearings.

While the cooling flow is continuous, the motors are operated infrequently. For example, for the preceding 12 months, these 4 pumps combined have less than 300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> of.

operation. Any thermal input is insignificant and would be immeasurable at the outfall, which is the Station's discharge structure and in any event is accounted for in SIN 001 as part of the Permitted thermal discharge to the River.

Additionally, it is important to clarify that the water supplied to S/N 005 RHRSW motors is extracted from the flow stream from the service water pumps at the Station intake which is allowed a maximum of 14.4 mgd of water. Thus, the supply source of S/N 005 is already a controlled volume of water supply. Also, the discharge from the SIN 005

RHRSW motors is via S/N 007 discharge to the outfall. This internal discharge will not increase the total discharge through the discharge forebay (SIN 001 and 007). It is simply a re-routing of water from one part of the facility to the RIHRSW pumps.

No effluent limits or monitoring is required for this waste stream which discharges though S/N 007 to the Station's discharge structure until it combines with S/N 001. This requirement is unchanged iom the existing permit.

Change No. 3. On page 5. item 7 (stormwater runoff) add S/N 012 treated stormwater runoff from a gravel parkidn lot.

Exylanation for requested change: With the recent construction of a new overflow gravel parking lot, the Station applied for and received a Stormwater General Permit (3653-9015) covering the discharge of treated runoff from this parking lot. The stormwater is first treated via either of two micropool extended detention ponds prior to discharging to an unnamed tributary of the Connecticut River approximately 500 yards north of the Station's Intake Structure. Since other stormwater discharges for the Station are captured within the NPDES Permit, this one should also be noted there for completeness.

Change No. 4. On page 8, Following Cortrol OS7700, add a second boiler treatment chemical Conguor CNOR 3588.

Explanation for requested change: Conquor CNQR3588 is an oxygen scavenger and pH control agent containing Diethyl-Hydroxyl-Amine (DEHA) as the oxygen scavenger.

DEHA has been shown to have a lower toxicity than hydroquinone which is a constituent in Cortrol OS7700. This new chemical would be used preferentially at Vermont Yankee in the house heating boiler, however, we request retaining Cortrol OS7700 as an option for backup in the event Nalco is unable to provide Conquor CNQR 3588. Boiler discharges would be limited to 30 p*im as DEHA. (MSDS Is attached).

Change No. 5. On Rage 8, delete Bulab 7034 and change the name of Depositrol BL5303 to Scaletrol PDC 9329 (industry change.

The title should also be changed to read "Scaletrol PDC 9329 is a carbon steel corrosion control inhibitor used during system lay-up". Sealetrol PDC 9329 would be used at a concentration of 30 ppm (MSDS attached)

Change No. 6. On page 8 add the following additional chemicals manufactured by Nalco.

Cl-103, manufactured by Nalco, is a non ionic surfactant for use in the Service Water System at a maximum concentration of 10 ppm.

PCL-401, manufactured by Nalco is a copolymeric anionic dispersant for use in'the Service Water System. The maximum concentration if used as a slug feed 1-2 hours per day is 20 ppm. For continuous feed the Service Water System maximum concentration is 2.0 ppm.

CL-50, manufactured by Nalco, is a corrosion inhibitor that contains 35% poly I phosphonate. This product would be used at a concentration of 15 ppm (MSDS attached).

Change No. 7. On page 6. item 10 a-f. replace the langua~e in bullets a-f only to reflect that Entergy Vermont Yankee may only discharge radioactive liquid effluents in compliance with the NRC limits.

Explanation for requested change:

Retain the paragraph on page 6 that is currently item number 10 and add the following to the end of that paragraph: "Jurisdiction to regulate radioactive materiýls in water discharge permits is held by the Nuclear Regulatory Commission (NRC) under the Atomic Energy Act, 42 U.S.C. 2021, et seq. Therefore, the Permittee must comply with radiation standards established and regulated by the NRC".

Attachment C MATERIAL SAFETY DATA SHEET PRODUCT o gONDEO 0 Nalco CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC I 1. I CHEMICAL PRODUCT AND COMPANY IDENTIFICATION 7]

I PRODUCT NAME: CONQUORO CNQR3588 APPLICATION: CORROSION INHIBITOR COMPANY IDENTIFICATION: Ondeo Nalco Company Ondeo Nalco Center Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S): (800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 313 FLAMMABILITY: 212 REACTIVITY: 010 OTHER:

0= Insignificant I =Slight 2 = Moderate 3= High 4= Extreme

.2. -COMPOSTONIINFORmATION ON INGREDIENTS Our hazard evaluation has Identified the following chemical substance(s) as hazardous. Consult Secti/n 15 for the nature of the hazard(s).

V" Hazardous Substance(s) CAS NO  %(w/w)

Cydohexylamine 108-91-8 10.0 - 30.0 Methoxypropwamine 5332-73-0 10.0-30.0 Diethyl-Hydroxyt-Amine 3710-84-7 1.0-5.0

3. HAZARDS IDENTIFICATION "EMERGENCY OVERVIEW*

DANGER Corrosive. Combustible. May cause tissue damage. Harmful if absorbed through skin. Vapors may have a strong offensive odor which may cause sensory response including headache, nausea and vomiting.

Do not get in eyes, on skin, on clothing. Do not take internally. Use with adequate ventilation. Keep away from sources of ignition - No smoking. Keep away from heat Keep container tightly closed and in a well-ventilated place. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water.

Wear b face shield. Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots.

Combustible Liquid; may form combustible mixtures at or above the flash point May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) under fire conditions. May evolve ammonia (NH4) under fire conditions. Empty product containers may contain product residue. Do not pressurize, cut, heat, weld, or exoose containers to flame or other sources of lanition.

PRIMARY ROUTES OF EXPOSURE:

Fve, Skin, Inhalation Ondeo Nalco Company Ondeo Nalco Center- Naperville, Illinois 60563-1198 (630)305-1000 1/10

MATERIAL SAFETY DATA SHEET o 0 ONDEo PRODUCT H NaRco CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC HUMAN HEALTH HAZARDS - ACUTE:

EYE CONTACT:

Corrosive. Will cause eye bums and permanent tissue damage.

SKIN CONTACT:

May cause severe irritation or tissue damage depending on the length of exposure and the type of first aid administered. Harmful if absorbed through skin.

INGESTION:

Not a likely route of exposure. Corrosive; causes chemical bums to the mouth, throat and stomach.

INHALATION:

Irritating, in high concentrations, to the eyes, nose, throat and lungs. Vapors may have a strong offensive odor which may cause sensory response including headache, nausea and vomiting.

SYMPTOMS OF EXPOSURE:

Acute:

A review of available data does not identify any symptoms from exposure not previously mentioned.

Chronic:

A review of available data does not Identify any symptoms from exposure not previously mentioned.

'GGRAVATION OF EXISTING CONDITIONS:

kwreview of available data does not identify any worsening of existing conditions.

14. -1FIRST AID MEASURES EYE CONTACT:

PROMPT ACTION IS ESSENTIAL IN CASE OF CONTACT. Immediately flush eye with water for at least 15 minutes while holding eyelids open. Get immediate medical-attention.

SKIN CONTACT:

Immediately flush with plenty of water for at least 15 minutes. For a large splash, flood body under a shower.

Remove contaminated clothing. Wash off affeced area immediately with plenty of water. Get immediate medical attention. Contaminated clothing, shoes, and leather goods must be discarded or cleaned before re-use.

INGESTION:

DO NOT INDUCE VOMITING. Ifconscious, washout mouth and give water to drink. Get immediate medical attention.

INHALATION:

Remove to fresh air, treat symptomatically. Get medical attention.

NOTE TO PHYSICIAN:

Probable mucosal damage may contraindicate the use of gastric lavage. Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 2110

MATERIAL SAFETY DATA SHEET PRODUCT" o ONDEO

° Natco CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC

56. FIRE FIGHTING MEASURES FLASH POINT: 158 -F 170 °C ( PMCC)

EXTINGUISHING MEDIA:

Dry powder, Carbon dioxide, Foam, Other extinguishing agent suitable for Class B fires, For large fires, use water spray or fog, thoroughly drenching the burning material.

Keep containers cool by spraying with water.

FIRE AND EXPLOSION HAZARD:'

Combustible Liquid; may form combustible mixtures at or above the flash point. May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) under fire conditions. May evolve ammonia (NH4) under fire conditions. Empty product containers may contain product residue. Do not pressurize, cut, heat weld, or expose containers to flame or other sources of Ignition.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING:

In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.

6. ACCIDENTAL RELEASE MEASURES OERSONAL PRECAUTIONS:

.,,,restrict access to area as appropriate until lean-up operations are complete. Ensure clean-up is conducted by trained personnel only. Ventilate spill area if possible. Do not touch spilled material. Stop or reduce any leaks if it is safe to do so. Remove sources of ignition. Use personal protective equipment recommended'in Section 8 (Exposure Controls/Personal Protection). Notify appropriate government, occupational health and safety and environmental authorities.

METHODS FOR CLEANING UP:

SMALL SPILLS: Soak up spill with absorbent material. Place residues in a suitable, covered, properly labeled container. Wash affected area. LARGE SPILLS: Contain fquid using absorbent material, by digging trenches or by diking. Reclaim Into recovery or salvage drums or tank truck for proper disposal. Wash site of spillage thoroughly with water. Contact an approved waste hauler for disposal of contaminated recovered material. Dispose of material In compliance with regulations Indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.

7. HANDUNG AND STORAGE HANDLING:

Do not get in eyes, on skin, on clothing. Do not take internally. Do not breathe vapors/gases/dust Use with adequate ventilation. Avoid generating aerosols and mists. Keep away from acids and oxidizing agents. Do not use, store, spill or pour near heat, sparks or open flame. Keep the containers closed when not in use. Have emergency equipment (for fires, spills, leaks, etc.) readily available.

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 3/10

MATERIAL SAFETY DATA SHEET PRODUCT o ONDEo 0 Nalco CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC STORAGE CONDITIONS:

Store the containers tightly closed. Store away from heat and sources of ignition. Use proper grounding procedures. Store separately from acids. Store separately from oxidizers. Amine and sulphite products should not be stored Within close proximity or resulting vapors may form visible airborne particles.

8. 'EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS:

Exposure guidelines have not been established for this product. Available exposure limits for the substance(s) are shown below.

ACGIH1TLV:

Substance(s)

Cyclohexylamine TWA: 10 ppm, 41 ragm3 OSHNPEL:

Substance(s)

Cyclohexylamine TWA: 10 ppm, 40 mg/m3 AIHA/WEEL:

Substance(s)

Methoxypropylamine TWA: 5 ppm STEL 15 ppm ENGINEERING MEASURES:

General ventilation is recommended. Use local exhaust ventilation if necessary to control airborne mist and vapor.

RESPIRATORY PROTECTION:

If significant mists, vapors or aerosols are generated an approved respirator is recommended. An organic vapor cartridge with dust/mist prefilter or supplied air may be used. In event of emergency or planned entry into unknown concentrations a positive pressure, full-faceplece SCBA should be used. If respiratory protection is required.

institute a complete respiratory protection program including selection, fit testing, training, maintenance and Inspection.

HAND PROTECTION:

Butyl. gloves;. Most glove materials are of low chemical resistance. Replace gloves regularly.

SKIN PROTECTION:

Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. A full slicker suit is recommended if gross exposure is possible.

EYE PROTECTION:

Wear a face shield with chemical splash goggl6s.

HYGIENE RECOMMENDATIONS:

Eye wash station and safety shower are necessary. If clothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse.

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 4110

MATERIAL SAFETY DATA SHEET

0. PRODUCT'-

o0gONDEO 0 Nalco-CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC

9. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Clear Light yellow ODOR Amine SPECIFIC GRAVITY 0.949 - 0.961 DENSITY 7.9 - 8.01 lb/gal SOLUBILITY IN WATER Complete pH (100 %) 12.8-13.0 VOC CONTENT 46 %

10. STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

1/4ýzardous polymerization will not occur.

CONDITIONS TO AVOID:

Heat and sources of ignition including static discharges.

MATERIALS TO AVOID:

Contact with strong acids (e.g. sutfuric, phosphoric, nitric, hydrochloric, ciromic, suffonic) may generate heat, splattedring or boiling and toxic vapors. Contact with strong oxidizers (e.g. chlorine, pero.xdes, chromates, nitric acid, perchlorate, concentrated oxygen, permanganate) may generate heat, fires, explosions and/or toxic vapors. Avoid contact with S02 or acidic bisutfite products, which may react to form visible airborne amine salt particles. Certain amines in contact with nitrous acid, organic or inorganic nitrites or atmospheres with high nitrous oxide concentrations may produce N-nltrosamines, many of which are cancer-causing agents to laboratory animals.

HAZARDOUS DECOMPOSITION PRODUCTS:

Under fire conditions: Oxides of carbon, Oxides of nitrogen, ammonia

11. TOXICOLOGICAL INFORMATION No toxicity studies have been conducted on this product.

SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial

• ,.iienists (ACGIH).

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 5/10

MATERIAL SAFETY DATA SHEET PRODUCT o ONDEONalco CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC MUTAGENICITY:

A mutagenicity test battery on cyclohexylamine was inconclusive. In a short-term test, cyclohexylamine caused mutation in human white blood cells. A bacterial mutagenicity (Ames) bioassay was negative for methoxypropylamine.

12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS:

The following results are for the product.

ACUTE FISH RESULTS:

I Species lRxpoure .1LC50 ~ Test Descriptor Fathead Minnow 96 hrs 220 mg/I Product Rating: Essentially non-toxic ACUTE INVERTEBRATE RESULTS:

Species Exposure LC50 EC50 I Tst Descriptor Ceriodaphnia dubia 48 hrs . 157 mg/I Product Daphnia magna 48 hrs 274 mg/ Product

,ating: Essentially non-toxic Ifreleased into the environment, see CERCLAISUPERFUND in Section 15.

13. DISPOSAL CONSIDERATIONS If this product becomes a waste, it could meet the criteria of a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261. Before disposal, it should be determined if the waste meets the criteria of a hazardous waste.

Hazardous Waste: D002 Hazardous wastes must be transported by a licensed hazardous waste transporter and disposed of or treated in a properly licensed hazardous waste treatment, storage, disposal or recycling facility. Consult local, state, and federal regulations for specific requirements.

114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading) specific to an order. Please note that the proper Shipping Name I Hazard Class may vary by packaging, properties, and mode of transportation. Typical Proper Sfiipping Names for this product are:

LAND TRANSPORT:

Proper Shipping Name: AMINES, UQUID, CORROSIVE, N.O.S.

Technical Name(s): CYCLOHEXYLAMINE, METHOXYPROPYLAMINE UN/ID No: UN 2735 Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 6110

MATERIAL SAFETY DATA SHEET PRODUCT o 4ONDEO 0Nalco CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300(24 Hours) CHEMTREC Hazard Class - Pdrmary: 8 Packing Group: III Flash Point: 70OC /158 F AIR TRANSPORT (ICAO/AATA):

Proper Shipping Name: AMINES, LIQUID, CORROSIVE, N.O.S.

Technical Name(s): CYCLOHEXYLAMINE, METHOXYPROPYLAMINE UN/IDNo: UN 2735 Hazard Class - Primary: 8 Packing Group; III IATA Cargo Packing Instructions: 820 IATA Cargo Aircraft Umit: 60 L (Max net quantity per package)

MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name: AMINES, LIQUID, CORROSIVE, N.O.S.

Technical Name(s): CYCLOHEXYLAMINE, METHOXYPROPYLAMINE UN/ID No: UN 2735 Hazard Class - Primary: 8 Packing Group: III

ý.wi6. I REGULATORY INFORMATION I NATIONAL REGULATIONS, USA:.

OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, the following substance(s) in this product is/are hazardous and the reason(s) is/are shown below.

Cyclohexylamine" Corrosive, Flammable Methoxypropylamine: Corrosive, Flammable Diethyl-Hydroxyl-Amine: Irritant Combustible.

CERCLNSUPERFUND, 40 CFR 117,302:

Notification of spills of this product is not required.

SARAISUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) - SECTIONS 302,311.

312, AND 313:

SECTION 302 - EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355):

This product contains the following substance(s) which Is listed in Appendix A and B as an Extremely Hazardous Substance. Listed below are the statutory Threshold Planning Quantity (TPQ) for the substance(s) and the Reportable Quantity (RQ) of the product.

Extremely Hazardous Substance TPQ Cyclohexylamine 10,000 lbs 10,000 lbs Ondeo Nalco Company Ondeo Nalco Center

• Naperville, Illinois 60563-1198 (630)305-1000 7110

MATERIAL.SAFETY DATA SHEET o

• ONDEO PRODUCT 1 0Natco CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC SECTIONS 311 AND 312 - MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370):

Our hazard evaluation has found this product to be hazardous. The product should be reported under the following EPA hazard categories:

X Immediate (Acute) Health Hazard Delayed (Chronic) Health Hazard X Fire Hazard Sudden Release of Pressure Hazard Reactive Hazard Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely

• hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 - LIST OF TOXIC CHEMICALS (40 CFR 372):

This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA):

The substances in this preparation are Included on or exempted from the TSCA 8(b). Inventory (40 CFR 710)

FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307, 40 CFR711formerly Sec. 311 :

• ,)ne of the substances are specifically listed in the regulation.

CLEAN AIR ACT, Sec. 111 (40 CFR 60, Volatile Organic Compounds), Sec. 112 (40 CFR 61, Hazardous Air Pollutants), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

This product contains the following substances listed In the regulation:

Substance(s) Ciation Cyclohexylamine: Sec. 111 CALIFORNIA PROPOSITION 65:

This product does not contain substances which require warning under California Proposition 65.

MICHIGAN CRITICAL MATERIALS:

None of the substances are specifically listed in the regulation.

STATE RIGHT TO KNOW LAWS:

The following substances are disclosed for compliance with State Right to Know Laws:

Cyclohexylamine 108-91-8 Methoxypropylamine 5332-73-0 NATIONAL REGULATIONS, CANADA:

WORKPLACE HAZARDOUS MATERIALS INFORMATION SYSTEM (WHMIS):

This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS contains all the information required by the CPR.

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 8110

MATERIAL SAFETY DATA SHEET o -"

ONDEO

.Nalco CONQUOR PRODUCT CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC WHMIS CLASSIFICATION:

B3 - Combustible Liquids, E - Corrosive Material CANADiAN ENVIRONMENTAL PROTECTION ACT (CEPA):

The substances in this preparation are listed on the Domestic Substances List (DSL), are exempt, or have been reported in accordance with the New Substances Notification Regulations.

116. _ OTHER INFORMATION This product material safety data sheet provides health and safety information. The product is to be used in applications consistent with our product literature. Individuals handling this product should be informed of the recommended safety precautions and should have access to this information. For any other uses, exposures should

be evaluated so that appropriate handling practices'and training programs can be established to insure safe workplace operations. Please consult your local sales representative for any further information.

REFERENCES.

Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight# CD-ROM V.rsion), Ariel Research Corp.,

Bethesda, MD.

lazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS# CD-ROM taerslon), Micromedex, Inc., Englewood, CO.

IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.

Integrated Risk Inf6rmation System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, CO.

Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.

Title 29 Code of Federal Regulations, Part.1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight# CD-ROM Version), Ariel Research Corp., Bethesda, MD.

Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, CO.

Ariel Insight# (An integrated guide to industrial chemicals covered under major regulatory and advisory programs),

North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight# CD-ROM Version), AMel Research Corp., Bethesda, MD.

The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS# CD-ROM Version),

Micromedex, Inc., Englewood, CO.

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 9110

MATERIAL SAFETY DATA SHEET PRODUCT 0.

CONQUOR CNQR3588 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC Prepared By: Product Safety Department Date issued: 04/17/2000 Replaces: 06/25/1996 Ondeo Nalco Company Ondeo Nalco Center. Naperville, Illinois 60563-1198 (630)305-1000 10/10

MATERIAL SAFETY DATA SHEET o ;ONDEO PRODUCT Natco PCL-401 EMERGENCY TELEPHONE NUMBER (800) 424-9300 (24 Ho~urs) CHEMTREC

1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: PCL-401 APPLICATION: WATER TREATMENT COMPANY IDENTIFICATION: ONDEO Nalco Company ONDEO Nalco Center Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER: (800) 424-9300 (24 Hours) CHEMTREC NFPA 704MHMIS RATING HEALTH: 0/1 FLAMMABILITY: I /I REACTIVITY: 0/0 OTHER:

0= Insignificant 1 = Slight 2 = Moderate 3= High 4=-Extreme

12. 1COMPOSITION/INFORMATION ON INGREDIENTS Based on our hazard evaluation, none of the substances in this product are hazardous.

k." 7HAZARDS I IDENTIFICATION "EMERGENCY OVERVIEW" CAUTION May cause irritation with prolonged contact Do not get in eyes, on skin, on clothing. Do not take internally. Wear suitable protective clothing. Keep container tightly dosed. Flush affected area with water.

May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) and sulfur (SOx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE:

Eye, Skin HUMAN HEALTH HAZARDS - ACUTE:

EYE CONTACT:

May cause irritation with prolonged contact SKIN CONTACT:

May cause irritation with prolonged contact INGESTION:

Not a likely route of exposure. No adverse effects expected.

ONDEO Nalco Company ONDEO Nalco Center, Naperville, Illinois 60563-1198 (630)305-1000 118

0 MATERIAL SAFETY DATA SHEET o ONDEO PRODUCT oNatco PCL-401 EMERGENCY TELEPHONE NUMBER (800) 424-9300 (24 Hours) CHEMTREC INHALATION:

Not a likely route of exposure. No adverse effects expected.

SYMPTOMS OF EXPOSURE:

Acute:

A review of available data does not identify any symptoms from exposure not previously mentioned.

Chronic:

A review of available data does not identify any symptoms from exposure not previously mentioned.

AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

4. FIRST AID MEASURES EYE CONTACT:

Flush affected area with water. If symptoms develop, seek medical advice.

SKIN CONTACT:

Flush affected area with water. If symptoms develop, seek medical advice.

INGESTION:

lo not Induce vomiting without medical advice, if conscious, washout mouth and give water to drink. Ifsymptoms Zveiop, seek medical advice.

INHALATION:

Remove to fresh air, treat symptomacally. If symptoms develop, seek medical advice.

NOTE TO PHYSICIAN:

Based on the individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

56. FIRE FIGHTING MEASURES FLASH POINT: >200°F!>93C()

EXTINGUISHING MEDIA:

This product would not be expected to bum unless all the water is boiled away. The remaining organics may be ignitable. Use extinguishing media appropriate for surrounding fire.

FIRE AND EXPLOSION HAZARD:

May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) and sulfur (SOX) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING:

In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit ONDEO Nalco Company ONDEO Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 218

MATERIAL SAFETY DATA SHEET PRODUCT 0

0 0 -ONDEO Natco PCL-401 EMERGENCY TELEPHONE NUMBER (800) 424-9300 (24 Hours) CHEMTREC

16. ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Do not touch spilled material. Restrict access to area as appropriate until clean-up operations are complete. Use personal protective equipmerit recommended in Section 8 (Exposure Controls/Personal Protection). Stop or reduce any leaks if it is safe to do so. Ventilate spill area ifpossible.

METHODS FOR CLEANING UP:

SMALL SPILLS: Soak up spill with absorbent material.. Place residues in a suitable, covered, properly labeled container. Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal. Contact an approved waste hauler for disposal of contaminated recovered material. Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.

7. HANDLUNG -AND STORAGE HANDUNG:

Avoid eye and skin contact. Do not take internally. Ensure all containers are labelled. Keep the containers closed i.;,en not in use.

STORAGE CONDITIONS:

Store the containers tightlý dosed.

18. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS:

This product does not contain any substance that has an established exposure limit.

ENGINEERING MEASURES:

General ventilation is recommended.

RESPIRATORY PROTECTION:

Respiratory protection is not normally needed.

HAND PROTECTION:

Neoprene gloves, Nitrile gloves, Butyl gloves, PVC gloves SKIN PROTECTION:

Wear standard protective clothing.

EYE PROTECTION:

Wear chemical splash goggles.

ONDEO Nalco Company ONDEO Nalco Center' Naperville, Illinois 60563-1198 (630)305-1000 3/8

o ONDEO

• "0 -° Nalco MATERIAL SAFETY DATA SHEET PCL-401 PRODUCT EMERGENCY TELEPHONE NUMBER (800) 424-9300 (24 Hours) CHEMTREC HYGIENE RECOMMENDATIONS:

Keep an eye wash fountain available. Keep a safety shower available. Ifclothing is contaminated, remove clothing and thoroughly wash the affected area: Launder contaminated clothing before reuse.

9. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Liquid APPEARANCE Light yellow ODOR None SPECIFIC GRAVITY 1.16 - 1.20 SOLUBILITY IN WATER Complete pH () 4.2 -5.0 VISCOSITY 20 - 160 cps FREEZING POINT 25 F I VAPOR PRESSURE Same as water

.VOC CONTENT 0.00 %

'D STABILITY AND REACTIVITY STABILITY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.

CONDITIONS TO AVOID:

Freezing temperatures.

MATERIALS TO AVOID:

Strong oxidizing agents HAZARDOUS DECOMPOSITION PRODUCTS:

Under fire conditions: Oxides of carbon, Oxides of nitrogen, Oxides of sulfur 11.. TOXICOLOGICAL INFORMATION The following results are for the product ACUTE ORAL TOXICITY:

Species LD50 Tested Substance Rat 5 glkg Product Rating: Non-Hazardous ONDEO Nalco Company ONDEO Nalco Center Naperville, Illinois 60563-1198 (630)305-1000 418

MATERIAL SAFETY DATA SHEET PRODUCT 0

PCL-401 EMERGENCY TELEPHONE NUMBER (800) 424-9300 (24 Hours) CHEMTREC ACUTE DERMAL TOXICITY:

Species LD50 tested Substance Rabbit 2 g/kg Product Rating: Non-Hazardous SENSITIZATION:

This product is not expected to be a sensitizer.

CARCINOGENICITY:'

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).

12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS:

The following results are for the product.

ACUTE FISH RESULTS:

Species Exposure LC50 Tested Substance Rluegil Sunfish 96 hrs > 5,000 MO/Il .Product' jinbow Trout 96 hrs 4,900 mg/1 Product raing: Essentially non-toxic ACUTE INVERTEBRATE RESULTS:

ISpecies I Exposure ILC50 IEC50 ITested Substance Daphnia magna 48 hrs 2,800 mg/I Product Rating: Essentially non-toxic If released into the environment, see CERCLINSUPERFUND in Section 15.

13. DISPOSAL CONSIDERATIONS 77 If this product becomes a waste, it Is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.

As a non-hazardous waste, it is not subject to federal regulation. Consult state or local regulation for any additional handling, treatment or disposal requirements. For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facility.

114. I TRANSPORT INFORMATION-The Information In this section is for reference only and should not take the place of a shipping paper (bill of lading) specific to an order. Please note that the proper Shipping Name I Hazard Class may vary by packaging, properties, and mode of transportation. Typical Proper Shipping Names for this product are:

ONDEO Nalco Company ONDEO Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 518

MATERIAL SAFETY DATA SHEET o, °ONDEO PRODUCT 0 Natco PCL-401 EMERGENCY TELEPHONE NUMBER (800) 424.9300 (24 Hours) CHEMTREC LAND TRANSPORT:

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION "AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION MARINE TRANSPORT (IMDGIIMO):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION 115. I REGULATORY INFORMATION I NATIONAL REGULATIONS, USA:

OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, none of the substances in this product are hazardous.

• ,ERCLAISUPERFUND, 40 CFR 117,302:

-fotification of spills of this product is not required.

SARNVSUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE Ill) - SECTIONS 302, 311, 312, AND 313:

SECTION 302 - EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355):

This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 - MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370):

Our hazard evaluation has found that this product.is not hazardous under 29 CFR 1910.1200.

Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 - LIST OF TOXIC CHEMICALS (40 CFR 372):

This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA):

The chemical substances in this product are on the TSCA 8(b) Inventory (40 CFR 710) or are sold commercially under the polymer exemption (40 CFR 723.250).

FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 / formerly Sec. 307,40 CFR I formerly Sec. 311:

None of the substances are specifically listed in the regulation.

ONDEO Nalco Company ONDEO Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 6/8

MATERIAL SAFETY DATA SHEET PRODUCT o ;ONDEO Natco PCL-401' EMERGENCY TELEPHONE NUMBER (800) 424-9300 (24 Hours) CHEMTREC CLEAN AIR ACT, Sec. 111 (40 CFR 60, Volatile Organic Compounds), Sec. 112 (40 CFR 61, Hazardous Air Pollutants), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

None of the substances are specifically listed in the regulation.

CALIFORNIA PROPOS111ON 65:

This product does not contain substances which require warning under California Proposition 65.

MICHIGAN CRITICAL MATERIALS:

None of the substances are specifically listed in the regulation.

STATE RIGHT TO KNOW LAWS:

None of the substances are specifically listed in the regulation.

NATIONAL REGULATIONS, CANADA:

WORKPLACE HAZARDOUS MATERIALS INFORMATION SYSTEM (WHMIS):

This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS contains all the Information required by the CPR.

WHMIS CLASSIFICATION.:

Not considered a WHMIS controlled product 116. IOTHER INFORMATION This product material safety data sheet provides health and safety information. The product is to be used in applications consistent with our product literature. Individuals handling this product should be informed of the recommended safety precautions and should have access to this information. For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations. Please consult your local sales representative for any further Information.

REFERENCES Threshold Limit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight# CD-ROM Version), Ariel Research Corp.,

Bethesda, MD.

Hazardous Substances Data Bank, National Library of Medicine, Bethesda, Maryland (TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, Co.

IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.

Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES CPS# CD-ROM Version), Microfnedex, Inc., Englewood, CO.

Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services,

"',blic Heath Service.

ONDEO Nalco Company ONDEO Nalco Centers Naperville, Illinois 60563-1198 (630)305-1000 7/8

MATERIAL SAFETY DATA SHEET 00 PRODUCT ONE PCL-401 EMERGENCY TELEPHONE NUMBER (800) 424-9300 (24 Hours) CHEMTREC Title 29 Code of Federal Regulations, Part 1910, Subpart 7, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight# CD-ROM Version), Adel Research Corp., Bethesda MD.

Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, CO.

Ariel Insight# (An integrated guide to industrial chemicals covered under major regulatory and advisory programs),

North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight# CD-ROM Version), Ariel Research Corp., Bethesda, MD.

The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS# CD-ROM Version),

Micromedex, Inc., Englewood. CO Prepared By: Product Safety Department Date Issued: 02/10/2000 Replaces: 06118/1999 ONDEO Nalco Company ONDEO Nalco Center- Naperville, Illinois 60563-1198 (630)305-1000 8/8

MATERIAL SAFETY DATA SHEET o °ONDEO PRODUCT.

0 Nalco CL-103 EMERGENCY TELEPHONE NUMBER (800)424-9300 (24 Hours) CHEMTREC

11. 1 CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: CL-103 APPLICATION: DEPOSIT PENETRANT CHEMICAL DESCRIPTION: Polymer, Water COMPANY IDENTIFICATION: ONDEO Nalco Company ONDEO Nalco Center Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER: (800)424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 0 /I FLAMMABILITY: 1/1 REACTIVITY: 0/0 OTHER:

0 = Insignificant I = Slight 2 = Moderate 3 = High 4 = Extreme

12. 1 COMPOSITIONIINFORMATION ON INGREDIENTS

• ,,,sel on our hazard evaluation, none of the substances in this product are hazardous.

13. HAZARDS IDENTIFICATION

.**EMERGENCYOVERVIEW" CAUTION May cause Irritation with prolonged contact Do not get in eyes, on skin, on clothing. Do not take internally. Wear suitable protective clothing. Keep container tightly closed. Flush affected area with water.

May evolve oxides of carbon (COx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE:

Eye, Skin HUMAN HEALTH HAZARDS -ACUTE:

EYE CONTACT:

May cause irritation with prolonged contact SKIN CONTACT:

May cause irritation with prolonged contact INGESTION:

H'ot a likely route of exposure. No adverse effects expected.

ONDEO Nalco Company ONDEO Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 118

MATERIAL SAFETY DATA SHEET PRODUCT

'i ONDEO Nalco CL-103 EMERGENCY TELEPHONE NUMBER (800)424-9300 (24 Hours) CHEMTREC INHALATION:

Not a likely route of exposure. No adverse effects expected.

SYMPTOMS OF EXPOSURE:

Acute:

A review of available data does not Identify any symptoms from exposure not previously mentioned.

Chronic:

A review of available data does not identify any symptoms from exposure not previously mentioned.

AGGRAVATION OF EXISTING CONDmONS:

A review of available data does not identify any worsening of existing conditions.

4. FIRST AID MEASURES.

EYE CONTACT:

Flush affected area with water. If symptoms develop, seek medical advice.

SKIN CONTACT:

Flush affected area with water. If symptoms develop, seek medical advice.

INGESTION:

no not induce vomiting without medical advice. If conscious, washout mouth and give water to drink. If symptoms

,.velop, seek medical advice.

INHALATION:

Remove to fresh air, treat symptomatically. If symptoms develop, seek. medical advice.

NOTE TO PHYSICIAN:

Based on the Individual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

5. FIRE FIGHTING MEASURES FLASHPOINT: >400"FI>200°C(COC)

EXTINGUISHING MEDIA:

This product-would not be expected to bum unless all the water is boiled away. The remaining organics may be ignitable. Use extinguishing media appropriate for surrounding fire.

FIRE AND EXPLOSION HAZARD:

May evolve oxides of carbon (COx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING:

In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit ONDEO Nalco Company ONDEO Nalco Center* Naperville, Illinois 60563-1198 (630)305-1000 2/8

MATERIAL SAFETY DATA SHEET o ONDEO PRODUCT 0Nalco CL-103*

EMERGENCY TELEPHONE NUMBER

.(800)424-9300 (24 Hours) CHEMTREC

6. ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Do not touch spilled material. Restrict access to area as appropriate until clean-up operations are bomplete. Use personal protective equipment recommended in Section 8 (Exposure Controls/Personal Protection). Stop or reduce any leaks if it is safe to do so. Ventilate spill area if possible.

METHODS FOR CLEANING UP:

SMALL SPILLS: Soak up spill with absorbent material. Place residues in a suitable, covered, properly labeled container. Wash affected area. LARGE SPILLS:. Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal. Contact an approved waste hauler for disposal of contaminated recovered material. Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAU71ONS:

Do not contaminate surface water.

7. HANDLING AND STORAGE HANDUNG:

Avoid eye and skin contact. Do not take internally. Ensure all containers are labelled. Keep the containers closed

.pen not in use.

STORAGE CONDITIONS:

Store the containers tightly dosed.

8. EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE UMITS:

This product does not contain any substance that has an established exposure limit ENGINEERING MEASURES:

General ventilation Is reconmmended.

RESPIRATORY PROTECTION:

Respiratory protection is not normally needed.

HAND PROTECTION:.

Neoprene gloves, Nitrile gloves, Butyl gloves, PVC gloves SKIN PROTECTION:

Wear standard protective clothing.

EYE PROTECTION:

Wear chemical splash goggles.

ONDEO Nalco Company ONDEO Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 318

. MATERIAL SAFETY DATA SHEET PRODUCT o :ONDEO 0 Nalco CL-103

.EMERGENCY TELEPHONE NUMBER (800)424-9300 (24 Hours) CHEMTREC HYGIENE RECOMMENDATIONS:

Keep an eye wash fountain available. Keep a safety shower available. Ifclothing is contaminated, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse.

19. 1PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Uquid APPEARANCE Clear Colorless ODOR None SPECIFIC GRAVITY 0.99 - 1.03 @ 77 °F 125 -C SOLUBIULTY IN WATER Complete pH (100 %) 6.6-7.0

10. STABILITY AND REACTIVITY STABILITY:

"table under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.

CONDITIONS TO AVOID:

Freezing temperatures.

MATERIALS TO AVOID:

None known.

HAZARDOUS DECOMPOSITION PRODUCTS:

Under fire conditions: Oxides of carbon j 11. I TOXICOLOGICAL INFORMATION The following results are for the polymer.

ACUTE ORAL TOXICITY:

Species LD50 Tested Substance Rat 2.300 - 16,000 mg/kg CARCINOGENICITY:

None of the substances In this product are fisted as carcinogens by the International Agency for Research on Cancer (IARC), the National'Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).

ONDEO Nalco Company ONDEO Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 418

MIKA%,*r T VAIJAQt1l=I 199 °ONDEO 0

PRODUCT

-° Na.[co CL-I03*

EMERGENCY TELEPHONE NUMBER (800)424-9300 (24 Hours) CHEMTREC

12. ECOLOGICAL INFORMATION ECOTOXICOLOGICAL EFFECTS:

The following results are for the product.

ACUTE FISH RESULTS:

Species Exposure LC50 Tested Substance Rainbow Trout 96 hrs > 1000 mg/I Blu ill Sunfish 96 hrs >1,000 mg/

Rating: Essentially non-toxic ACUTE INVERTEBRATE RESULTS:

Species Exposure a1050 EC50 Tested Substance Daphnia magna I 48hrs >1C000 Rating: Essentially non4o)dc If released Into the environment, see CERCLANSUPERFUND In Section 15.

13. DISPOSAL CONSIDERATIONS

' this product becomes a waste, It is not a hazardous waste as defined by the Resource Conservation and Recovery S(RCRA) 40 CFR 261, since It does not have the characteristics of Subpart C, nor is it listed under Subpart D.

As a non-hazardous waste, it Is not subject to federal regulation. Consult state or local regulation for any additional handling, treatment or disposal requirements. For disposal, contact a properly licensed waste treatment, storage.

disposal or recycling facility.

! 14. 1TRANSPORT INFORMATION I The information in this section Is for reference only and should not take the place of a shipping paper (bill of lading) specific to an order. Please note that the proper Shipping Name7 Hazard Class may vary by packaging, properties.

and mode of transportation. Typical Proper Shipping Names for this product are:

LAND TRANSPORT:

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION ONDEO Nalco Company ONDEO Nalco Center- Naper*ile, Illinois 60563-1198 (630)305-1000 518

MATERIAL SAFETY DATA SHEET o °ONDEO PRODUCT a Nalco CL-103 EMERGENCY, TELEPHONE NUMBER (800)424-9300 (24 Hours) CHEMTREC

15. RREGULATORY INFORMATION NATIONAL REGULATIONS, USA:

OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, none of the substances in this product are hazardous.

CERCLAISUPERFUND, 40 CFR 117,302:

Notification of spills of this product is not required.

SARA/SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) -SECTIONS 302, 311, 312, AND 313:

SECTION 302 - EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355):

This product does not contain substances listed in Appendix A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312 - MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370) :

Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

Under SARA 311 and 312, the EPA ha established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), whichever is lower, for extremely a,=,zardous substances and 10,000 pounds for all other hazardous chemicals.

SECTION 313 - LIST OF TOXIC CH-IEMICALS (40 CFR 372):

This product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA):

The chemical substances In this product are on the TSCA 8(b) Inventory (40 CFR 710).

FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act:

When use situations necessitate compliance with FDA regulations, this product Is acceptable under: 21 CFR 173.340 Defoaming Agents, 21 CFR 175.105 - Adhesives, 21 CFR 176.200 Defoaming Agents used in coatings, 21 CFR 176.210 Defoaming agents used in the manufacture of paper and paperboard, 21 CFR 176.300 - Slinicides, 21 CFR 177.1200 - Cellophane, 21 CFR 177.1400 - Hydroxyethyl cellulose film, water-insoluble, 21 CFR 178.1010 -

Sanitizing solutions, 21 CFR 178.3120 - Animal glue FEDERAL WATER POLLUTION CONTROL ACT, CLEAN WATER ACT, 40 CFR 401.15 /formerly Sec. 307, 40 CFR I formerly Sec. 311 :

None of the substances are specifically listed in the regulation.

CLEAN AIR ACT, Sec. 111 (40 CFR 60, Volatile Organic Compounds), Sec. .112 (40 CFR 61, Hazardous Air Pollutants), Sec. 602 (40 CFR 82, Class I and 1.1Ozone Depleting Substances):

None of the substances are specifically listed in the regulation.

CALIFORNIA PROPOSITION 65:

This product does not contain substances which require warning under California Proposition 65.

ONDEO Nalco Company ONDEO Nalco Center

• Naperville, Illinois 60563-1198 (630)305-1000 6/8

MATERIAL SAFETY DATA SHEET PRODUCT O ONDEO

-' Nalco 0

CL-103 EMERGENCY TELEPHONE NUMBER (800)424-9300 (24 Hours) CHEMTREC MICHIGAN CRITICAL MATERIALS:

None of the substances are specifically listed in the regulation.

STATE RIGHT TO KNOW LAWS:

None of the substances are specifically listed in the regulation.

NATIONAL REGULATIONS, CANADA:

WORKPLACE HAZARDOUS MATERIALS INFORMATION SYSTEM (WHMIS):

This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS contains all the information required by the CPR.

WHMIS CLASSIFICATION:

Not considered a WHMIS controlled product 116. 1 OTHER INFORMATION This product material safety data sheet provides health and safety information. The product is to be used in applications consistent with our product literature. Individuals handling this product should be informed of the recommended safety precautions and should have access to this Infonnation. For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe

(ý/orkplaceoperations. Please consult your local sales representative for any further information.

REFERENCES Threshold Umit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight# CD-ROM Version), Adel Research Corp.,

Bethesda, MD.

Hazardous Substances Data Bank, National Ubrary of Medicine, Bethesda, Maryland (TOMES CPS# CD-ROM Version), Micromedex, Inc., Engle-wo, Co.

IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.

Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C.-(TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, CO.

Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.

Tidle 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupational Safety and Health Administration (OSHA), (Ariel Insight# CD-ROM Version), ArMel Research Corp., Bethesda MD.

Regi.sry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS#-CD-ROM Version), Micromedex, Inc., Englewood, CO..

ONDEO Nalco Company ONDEO Nalco Center- Naperville, Illinois 60563-1198 (630)305-1000 718

MATERIAL SAFETY DATA SHEET 0

I CL-1 03 PRODUCT EMERGENCY TELEPHONE NUMBER (800)424-9300 (24.Hours) CHEMTREC Adel Insight# (An integrated guide to industrial chemicals covered under major regulatory and advisory programs),

North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Mel Insight# CD-ROM Version), AMel Research Corp., Bethesda, MD.

The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS# CD-ROM Version),

Micromedex, Inc., Englewood, CO Prepared By: Product Safety Department Date Issued : 04/07/2000 Replaces: 02/19/1997 ONDEO Nalco Company ONDEO Nalco Center- Naperville. Illinois 60563-1198 (630)305-1000 818

MATERIAL SAFETY DATA SHEET PRODUCT o0 ONDEONalco CL-50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC

1. - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION PRODUCT NAME: CL-50 APPLICATION: CORROSION INHIBITOR COMPANY IDENTIFICATION: Ondeo Nalco Company Ondeo Nalco Center Naperville, Illinois 60563-1198 EMERGENCY TELEPHONE NUMBER(S): (800) 424-9300 (24 Hours) CHEMTREC NFPA 704M/HMIS RATING HEALTH: 0I . FLAMMABILITY: 0/0 REACTIVITY: 010 OTHER:

0 = Insignificant 1 = Slight 2 = Moderate 3 = High 4 = Extreme

.2. COMPOSmON/INFORMATION ON INGREDIENTS

• Based on our hazard evaluation, none of the substances In this product are hazardous.

(,w., HAZARDS IDENTIFICATION

• • EMERGENCY OVERVIEW"'

CAUTION May cause irritation with prolonged contact.

Do not get In eyes, on skin, on clothing. Do not take internally. Wear suitable protective clothing. Keep container tightly dosed. Flush affected area with water. Protect product from freezing.

Not flammable or combustible. May evolve oxides of phosphorus (POx) under fire conditions.

PRIMARY ROUTES OF EXPOSURE:

Eye, Skin HUMAN HEALTH HAZARDS - ACUTE:

EYE CONTACT:

May cause Irritation with prolonged contact.

SKIN CONTACT:

May cause irritation with prolonged contact INGESTION:

Not a likely route of exposure. No adverse effects expected.

INHALATION :

a likely route of exposure. No adverse effects expected.

Ondeo Nalco Company Ondeo Nalco Center Naperville, Illinois 60563-1198 (630)305-1000 119

o ONDEO 0

-" Nalco MATERIAL SAFETY DATA SHEET PRODUCT CL-50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC SYMPTOMS OF EXPOSURE:

Acute:

A review of available data does not identify any symptoms from exposure not previously mentioned.

Chronic:

A review of available data does not identify any symptoms from exposure not previously mentioned.

AGGRAVATION OF EXISTING CONDITIONS:

A review of available data does not identify any worsening of existing conditions.

4. FIRST-AID MEASURES EYE CONTACT:

Flush affected area with water. If symptoms develop, seek medical advice.

SKIN CONTACT:

Flush affected area with water. If symptoms develop, seek medical advice.

INGESTION:

Do not Induce vomiting without medical advice. If conscious, washout mouth and give water to drink. If symptorms develop, seek medical advice.

ý'HALATION :

'Remove to fresh air, treat symptomatically. Ifsymptoms develop, seek medical advice.

NOTE TO PHYSICIAN:

Based onthe IndMdual reactions of the patient, the physician's judgement should be used to control symptoms and clinical condition.

5. FIRE FIGHTING MEASURES FLASH POINT: Not flammable.

EXTINGUISHING MEDIA:

Not expected to bum. Use extinguishing media appropriate for surrounding fire.

FIRE AND EXPLOSION HAZARD: I Not flammable or combustible. May evolve oxides of phosphorus (POx) under fire conditions.

SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING:

In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1060 219

MATERIAL SAFETY DATA SHEET PRODUCT o 1u0 - 0NDEO. Nalco CL-50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC

16. 1ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS:

Do not touch spilled material Restrict access to area as appropriate until dean-up operations are .complete. Use personal protective equipment recommended In Section 8 (Exposure Controls/Personal Protection). Stop or reduce any leaks if it is safe to do so. Ventilate spill area if possible.

METHODS FOR CLEANING UP:

SMALL SPILLS: Soak up spill with absorbent material. Place residues in a suitable, covered, properly labeled container. Wash affected area. LARGE SPILLS: Contain liquid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for proper disposal. Contact an approved waste hauler for disposal of contaminated recovered material. Dispose of material in compliance with regulations indicated in Section 13 (Disposal Considerations).

ENVIRONMENTAL PRECAUTIONS:

Do not contaminate surface water.

17. HANDLING AND STORAGE HANDLING:

Avoid eye and skin contact Do not take internally. Ensure all containers are labelled. Keep the containers closed

• e,*hen not In use.

STORAGE CONDITIONS:

Store the containers tightly dosed. Protect product from freezing.

18. 1 EXPOSURE CONTROLSIPERSONAL PROTECTION OCCUPATIONAL EXPOSURE LIMITS:

This product does not contain any substance that has an established exposure limit ENGINEERING MEASURES:

General ventilation Is recommended.

RESPIRATORY PROTECTION:

Respiratory protection is not normally needed.

HAND PROTECTION:

Neoprene gloves, Nitrile gloves, Butyl gloves, PVC gloves SKIN PROTECTION:

Wear standard protective clothing.

EYE PROTECTION:

Wear chemical splash goggles..

Ondeo Nalco Company Ondeo Nalco Center- Naperville, Illinois 60563-1198 (630)305-1000 319

MATERIAL SAFETY DATA SHEET o4F ONDEO PRODUCT -'

0 Natco CL-50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC HYGIENE RECOMMENDATIONS:

Keep an eye wash fountain available. Keep a safety shower-available. Ifclothing Is contamina.ted, remove clothing and thoroughly wash the affected area. Launder contaminated clothing before reuse.

19. PHYSICAL AND CHEMICAL PROPERTIES PHYSICAL STATE Uquid APPEARANCE Colorless ODOR None SPECIFIC GRAVITY 1.37 - 1.42 @ 77 .F 25 -C DENSITY 11.4 - 11.8 Ib/gal SOLUBILITY IN WATER Complete pH (100 %) 6.0-7.0 BOIUNG POINT > 212 OF I> 100 °C VAPOR PRESSURE Same as water EVAPORATION RATE Same as water VOC CONTENT 0.00 %

A0. STABIUTY AND REACTIVTY STABIUTY:

Stable under normal conditions.

HAZARDOUS POLYMERIZATION:

Hazardous polymerization will not occur.

CONDmONS TO AVOID:

Freezing temperatures.

Keep at temperatures above 38 F MATERIALS TO AVOID:

None known HAZARDOUS DECOMPOSITION PRODUCTS:

Under fire conditions: Oxides of phosphorus 1I. TOXICOLOGICAL INFORMATION The following results are for the product Ondeo Nalco Company Ondeo Nalco Center- Naperville, Illinois 60563-1198 (630)305-1000 419

MATERIAL SAFETY DATA SHEET PRODUCT 0 NE CL-50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC ACUTE ORAL TOXICITY:

Species LD50 Test Descriptor Rat > 5,000 mg/kg Product Rating : Non-Hazardous PRIMARY SKIN IRRITATION:

Dmize Score Test Descriptor 0.2 18.0 Product Rating: Minimally irritating PRIMARY EYE IRRITATION:

Dralze Score Test Descriptor 0.0-4 1110.0 Product Rating : Practically non-irritating SENSITIZATION:

This product Is not expected to be a sensitizer.

CARCINOGENICITY:

None of the substances in this product are listed as carcinogens by the International Agency for Research on Cancer (IARC), the National Toxicology Program (NTP) or the American Conference of Governmental Industrial Hygienists (ACGIH).

I ECOLOGICAL INFORMATION I ECOTOXICOLOGICAL EFFECTS:

The following results are for the product.

ACUTE FISH RESULTS:

I Speces I Exposure jLC50 I Test Descriptor Fathead Minnow 96 hrs 1162 mI Product Rating: Essentially non-toxic ACUTE INVERTEBRATE RESULTS:

ISecs I Exposure I LC5O I EC50 I Test Descriptor Daphnia magna 48 hrs > 1,000 mOO fm 910 mgl Product Rating : Essentially non-toxic MOBILITY AND BIOACCUMULATION POTENTIAL High phosphate levels In surface water can cause eutrophication with subsequent algal blooms and oxygen depletion.

If released into the environment, see CERCLAJSUPERFUND In Section 15.

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 519

MATERIAL SAFETY DATA SHEET PRODUCT o -ONDEO 0Nalco CL-50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC 113. I DISPOSAL CONSIDERATIONS I If this product becomes a waste, it is not a hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA) 40 CFR 261, since it does not have the characteristics of Subpart C, nor is it listed under Subpart D.

As a non-hazardous waste, it is not subject to federal regulation. Consult state or local regulation for any additional handling, treatment or disposal requirements. For disposal, contact a properly licensed waste treatment, storage, disposal or recycling facirity.

114. I TRANSPORT INFORMATION I The information in this section is for reference only and should not take the place of a shipping paper (bill of lading) specific to an order. Please note that the proper Shipping Name*/ Hazard Class may vary by packaging, properties, and mode of transportation. Typical Proper Shipping Names for this product are:

LAND TRANSPORT:

Proper Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, UQUID, N.O.S.

Technical Name(s): SODIUM PHOSPHATE, TRIBASIC UN/ID No: UN 3082 Hazard Class - Primary: 9 Packing Group: Ill Flash Point: Not flammable DOT Reportable Quantity (per package): 13,251 lbs DOT RQ Component: SODIUM PHOSPHATE, TRIBASIC AIR TRANSPORT (ICAO/IATA):

Proper Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, UQUID, N.O.S.

Technical Name(s): SODIUM PHOSPHATE, TRIBASIC UN/ID No: UN 3082 Hazard Class - Primary: 9 Packing Group: III IATA Cargo Packing Instructions: 914 IATA Cargo Aircraft Umit: NO LIMIT (Max net quantity per package)

MARINE TRANSPORT (IMDG/IMO):

Proper Shipping Name: PRODUCT IS NOT REGULATED DURING TRANSPORTATION

15. 1 REGULATORY INFORMATION 0'ATIONAL REGULATIONS, USA:

Ondeo Nalco Company Ondeo Nalco Center Naperville, Illinois 60563-1198 (630)305-1000 619

0oMATERIAL SAFETY DATA SHEET ONDE0 PRODUCT CL-50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC OSHA HAZARD COMMUNICATION RULE, 29 CFR 1910.1200:

Based on our hazard evaluation, none of the substances in this product are hazardous.

CERCLAISUPERFUND, 40 CFR 117,302:

This product contains the following Reportable Quantity (RQ) Substance. Also listed is the RQ for the product.

RQ Substance RQ.

Sodium Phosphate, Tribasic 13,250 lbs SARANSUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986 (TITLE III) - SECTIONS 302,311, 312, AND 313:

SECTION 302 - EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355):

This product does not contain substances listed in Appendix-A and B as an Extremely Hazardous Substance.

SECTIONS 311 AND 312- MATERIAL SAFETY DATA SHEET REQUIREMENTS (40 CFR 370):

Our hazard evaluation has found that this product is not hazardous under 29 CFR 1910.1200.

Under SARA 311 and 312, the EPA has established threshold quantities for the reporting of hazardous chemicals.

The current thresholds are: 500 pounds or the threshold planning quantity (TPQ), wfiichever is lower, for extremely hazardous substances and 10,000 pounds for all other hazardous chemicals.

,-CTION 313 - LIST OF TOXIC CHEMICALS (40 CFR 372):

'ig product does not contain substances on the List of Toxic Chemicals.

TOXIC SUBSTANCES CONTROL ACT (TSCA):

The substances in this preparation are included on or exempted from the TSCA 8(b) Inventory (40 CFR 710)

FOOD AND DRUG ADMINISTRATION (FDA) Federal Food, Drug and Cosmetic Act:

When use situations necessitate compliance with FDA regulations, this product is acceptable under: 21 CFR 173.310 Boiler Water Additives, 21 CFR 176.170 Components of paper and paperboard In contact with aqueous and fatty foods and 21 CFR 176.180 Components of paper and paperboard in contact with dry-foods.

NSF INTERNATIONAL:

This product has re'ceived NSF/Intemational certification under ANSIINSF Standard 60 in the corrosion and scale control and sequestering categories. The official name is "Blended phosphates." Maximum product application dosage is : 28 mg/l. Only product manufactured at Plant 11 USA and whose container label bears the ANSI/NSF Mark may be used in potable water treatment applications.

FEDERAL WATER POLLUTION CONTROL ACT. CLEAN WATER ACT, 40 CFR 401.15 formerly Sec. 307,40 C.FR / formerly Sec. 311" This product contains the following substances listed in the regulation:

Substance(s) , Citations Sodium Phosphate. Tnbasic: Sec. 311 CLEAN AIR ACT, Sec. 111 (40 CFR 60, Volabtle Organic Compounds), Sec. 112 (40 CFR 61, Hazardous Air Pollutants), Sec. 602 (40 CFR 82, Class I and II Ozone Depleting Substances):

,neof the substances are specifically listed in the regulation.

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 719

MATERIAL SAFETY DATA SHEET o4K'ON"DEO 0.

PRODUCT 0 Nalco CL-50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC CALIFORNIA PROPOSITION 65 -

This product does not contain substances which require warning under California Proposition 65.

MICHIGAN CRITICAL MATERIALS:

None of the substances are specifically listed in the regulation.

STATE RIGHT TO KNOW LAWS:

The following substances are disclosed for compliance with State Right to Know Laws:

Sodium Phosphate, Tribasic 7601-54-9 NATIONAL REGULATIONS, CANADA:

WORKPLACE HAZARDOUS MATERIALS INFORMATION SYSTEM (WHMIS):

This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations (CPR) and the MSDS contains all the information required by the CPR.

WHMIS CLASSIFICATION:

Not considered a WHMIS controlled product

'.ANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA):

(_.ýie substances in this preparation are listed on the Domestic Substances List (DSL), are exempt, or have been 76ported in accordance with the New Substances Notification Regulations.

16. °THER INFORMATION This product material safety data sheet provides health and safety information. The product is to be used in applications consistent with our product literature. Individuals handling this product should be informed of the recommended safety precautions and should have access to this information. For any other uses, exposures should be evaluated so that appropriate handling practices and training programs can be established to insure safe workplace operations. Please consult your local sales representative for any further information.

REFERENCES Threshold Umit Values for Chemical Substances and Physical Agents and Biological Exposure Indices, American Conference of Governmental Industrial Hygienists, OH., (Ariel Insight# CD-ROM Version), Ariel Research Corp..

Bethesda, MD.

Hazardous Substances Data Bank, National Ubrary of Medicine, Bethesda, Maryland (TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, CO.

IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man, Geneva: World Health Organization, International Agency for Research on Cancer.

Integrated Risk Information System, U.S. Environmental Protection Agency, Washington, D.C. (TOMES. CPS# CD-

• ROM Version), Micromodex, Inc., Englewood, CO.

Ondeo Nalco Company Ondeo Nalco Center - Naperville, Illinois 60563-1198 (630)305-1000 819

MATERIAL SAFETY DATA SHEET PRODUCT o AONDEO 0 Natco CL--50 EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC Annual Report on Carcinogens, National Toxicology Program, U.S. Department of Health and Human Services, Public Health Service.

Title 29 Code of Federal Regulations, Part 1910, Subpart Z, Toxic and Hazardous Substances, Occupatfonal Safety and Health Administration (OSHA), (Ariel Insight# CD-ROM Version), Ariel Research Corp., Bethesda, MD.

Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health, Cincinnati, OH, (TOMES CPS# CD-ROM Version), Micromedex, Inc., Englewood, CO.

Ariel Insight# (An integrated guide to' industrial chemicals covered under major regulatory and advisory programs),

North American Module, Western European Module, Chemical Inventories Module and the Generics Module (Ariel Insight# CD-ROM Version), AMel Research Corp., Bethesda, MD.

The Teratogen Information System, University of Washington, Seattle, WA (TOMES CPS# CD-ROM Version),

Micromedex, Inc., Englewood, CO.

V.

Prepared By: Product Safety Department Date issued: 01/27/2000

'Replaces :- 02/10/1997 Ondeo Nalco Company Ondeo Nalco Center- Naperville, Illinois 60563-1198 (630)305-1000 919

Attachment D ANALYSIS OF INTER-ANNUAL TRENDS IN THE ABUNDANCE OF BENTHIC MACROINVERTEBRATE TAxA AND REPRESENTATIVE IMPORTANT FISH SPECIES SAMPLED BY VERMONT YANKEE'S NPDES PERMIT-REQUIRED MONITORING PROGRAM 1991-2004' SEPTEMBER 2005

ANALYSIS OF INTER-ANNUAL TRENDS IN THE ABUNDANCE OF BENTHIC MACROINVERTEBRATE TAxA AND REPRESENTATIVE IMPORTANT FISH SPECIES SAMPLED BY VERMONT YANKEE'S NPDES PERMIT-REQUIRED MONITORING PROGRAM 1991-2004 Prepared for ENTERGY NUCLEAR VERMONT YANKEE P.O. Box 157, Governor Hunt Road Vernon, Vermont 05354 Prepared by NORMANDEAU ASSOCIATES, INC.

'25 Nashua Road Bedford, NH 03110 R-18980.040 September 2005

.1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Table of Contents Page 1.0 INTRODUCTON......-... . . ... ................ .. .. ............... ............................. .... ... I 2.0 BENTHIC MACROINVERTEBRATES ...... ................. ...........

- 1 2.1 METHODS ......................................................................................................................... 1 2.2 RESULTS ANDDscussON S....................................

........... ..3 3.0 FISH.................... ............ ........................... ......... 4 3.1 MIEH..ODS.................................................................................................................... .4 3.2 RESULTS AND.DISCUSSION................................................................................................ 5 3.2.1 American Sh.................................................

Shad ............................................. 6 3.2.2 Atlantic Salmon ................................................................................... ........ 7 3.2.3 S.........................................

A ttic Salmon.................................................. 7 3.2.4 Smallmouth Bass.................................................................................................. 8 3.2.5 Yellow Perch . ................................................................................................... 8 3.2.6 Walleyec .......... ............................................................................................. 8 3.2.6 Walleeot..................................................................

as =...................................... 8 3.2.7, Largemouth Bass ................................................ 9 3.2.8 FaIlfish. ............................................................................................................. 9 3.2.9 White Sucker ................................................................................................ 010

4.0 REFERENCES

.. . .... .. .. .. .. . ...... ............ .................. ............... ...................... 11

~Iw~

iggl.2004 WY HPOES Peirfft ReawaI-FkWa.doc 9/2815

• iii omneuAscaeI Mormandeau Associates,Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis List of Figures Page Figure 1-1. Connecticut River in the Vicinity of Vernon Pool .................................................... 12 Figure 2-1. NPDES macroinvertebrate rock basket sampling at Stations 227 and 031 .............. 13 Figure 2-2. Scatter plots comparing Crnstacea annual catch (noibasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont. ............................................................................................... 14 Figure 2-3.. Scatter plots comparing Diptera annual catch (nolbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River

.near Vernon, Verm ont ............................................................................................... 14 Figure 2-4. Scatter plots comparing Ephemeroptera annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace ofthe Connecticut River near Vernon, Vermont ..................................................................................... 15 Figure 2-5. Scatter plots comparing Gastropoda annual catch (no.basket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Cmnnecticut River near Vernon, Vermont ...........................................................  ;...................................... 15 Figure 2-6. Scatter plots comparing Oligochaeta annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont. ........... ...................................................................................... 16 Figure 2-7. Scatter plots comparing annual catch (noJbasket*30 days) of other macroinvertebrates for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont ....................................... 16 Figure 2-8. Scatter plots comparing Pelecypoda annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont. .................................................... -. 4................................... 17 Figure 2-9. Scatter plots comparing Trichoptera annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont ............................................................................................... 17 Figure 2-10. Scatter plots comparing Turbellaria annual catch (no/basket*30 days) for rock basket during 1993-2000 in Lower Vernon Pool and 1991-2002 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont ............................... 18 Figure 2-11. Scatter plots comparing total macroinvertebrate annual catch (no.basket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont. .................................................................... 18 Figure 3-1. General and anadromous fish electrofishing sampling stations .............. 21 1991-2004 VY NPDES Pend RenmewaI-F+Wa doc WMM28i0a iff NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Figure 3-2. Scatter plots comparing annual mean catch per hour of all fish species combined (Total) for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Verm ont ........................................................................................................ 22 Figure 3.3 Scatter plots comparing American shad annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) ofthe Connecticut River near Vernon, Vermont .......... 23 Figure 3.4 Scatter plots comparing American shad annual mean catch per hour for general electrofishing during 1991 through 2004 at stations upstream (A) and downstream (B) from Vermont Yankee in Lower Vernon Pool of the Connecticut River near Vernon, Veimont ............................................................... 23 Figure 3-5. Scatter plots comparing spottail shiner annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the

-.Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont.......... 24 Figure 3-6. Scatter plots comparing smaUmouth bass annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont ........... 25 Figure 3-7 Scatter plots comparing yellow perch annual mean catch per hiur for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont .......... 25 Figure 3-8. Scatter plots comparing walleye annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont .......... 26 Figure 3-9. Scatter plots comparing walleye annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool at locations upstream (A) and downstream (B) from Vermont Yankee, and in the Vernon Dam Tailrace near the dam (C) or fiather downriver in a recovery zone (D) of the Connecticut River near Vernon, Vermont. ............................................................. 27 Figure 3-10. Scatter plots comparing largemouth bass annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont ........... 28 Figure 3-I . Scatter plots comparing fallfish annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrae (B) of the Connecticut River near Vernon, Vermont .......... 28 Fzigure 3-12. Scatter plots comparing white sucker annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont .......... 29 Figure 3-13. Scatter plots comparing white sucker annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool at locations upstream (A) and downstream (B) from Vermont Yankee, in Vernon Pool but on 1991-2004 VY NPD ES P'ert Raew- /2mL 8/ 05o iv NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis the New Hampshire (C) or Vermont (D) sides, and in the Vernon Dam Tailrace near the dam (E) or further downriver in a recovery zone (F)of the Connecticut River near Vernon, Vermont ................................................................................... .30 191-2W04 VY NPDES PerrMt Renewal-Fmal.doc SA2M0 v NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis List of Tables Page Table 2-1. Composition of macroinvertetes collected in rock baskets placed in the Connecticut River upstream and downstream of Vernon Dam, 1991 through 2004. Upstream rock basket sampling was discontinued in 2002 ............................... 19 Table 2-2. Summary of the results of a Kendall-Tau correlation analysis oftime series trends in each benthic macroinvertebrate taxonomic grouping collected by rock.

basket sampling in the Connecticut River at Station 2 and Station 3 located downstream from Vernon Dam, 1996-2004 ............................................................... 20 Table 3-1. Summary of the Number*and Percent of Fish Species Collected by General Electrofishing Upstream of Vernon Dam, from 1991 through 2004 ..................... 31 Table 3-2. Summary of the Number and Percent of Fish Species Collected by General Electrofishing Downstream of Vernon Dam, from 1991 through 20041 ................34 Table 3-3. Summary of the results ofa Kendall-Tau correlation analysis of time series trends in each of the nine Representative Important Species (RIS) of fish and for all fish species combined (Total) collected by general electrofihng in the Connecticut River at permit-required Stations located upstream and downstream from Vernon Dam, 1991-2004 .................................................................................... 37 1M-204 vY NPDES PefMt RenewI.f:Ac 9/2/05 Ai NormandeauAssociates, Ind.

1991-2004 Vermont Yankee NPDES Permit Renewal Trend Analysis

1.0 INTRODUCTION

Vermont Yankee's 316(a) Demonstration Report April 2004 (Normandeau. 2004) demonstrated that a balanced indigenous community of aquatic biota has been maintained inthe vicinity of Vermont Yankee during the many years of plant operation and will be maintained under the proposed changes in thermal discharge limits described in the Demonstration Report. This conclusion was reached in part by statistical analysis of the results of NPDES permit-required biological monitoring programs that were performed io quantify the year-to-year (inter-annual) trends in abundance of benthic macroinvertebrates and fish populations during 1991 through 2002. Two more years of NPDES permit-required monitoring have occurred since issuance of the 316(a) Demonstration Report (2003 Wad 2004), and the purpose of this report is to add these newest data and extend the previous statistical analysis to the 1991-2004 time series.

The Connecticut River study area where NPDES permit-required biological monitoring programs were performed during the 1991-2004 period includes areas both upstream and downstream of Vermont Yankee within the lower Vernon Pool, and in the tailrace waters immediately below Vernon Dam (Figure 1-1).

Vernon Dam divides the study area into two primary habitat types, lentic and lotic. The slow-flowing or ponded areas of the Connecticut River found in lower Vernon Pool represent the lentic habitat. The rapid-flowing or turbulent areas of the Connecticut River found in the Vernon Dam tailrace represent the lotic habitat. The fish and benthic macroinvertebrate communities in the Connecticut River study area are characterized by diversity, presence of food chain as well as predatory species, and non-domination by pollution-tolerant species. Although certain fish species have been introduced to the study area by human activities over the years (i.e., via fish ladder installation), none of these species can be characterized as heat-tolerant, such that they will benefit by the thermal discharge and therefore either could cause the.

t displacement of endemic species or become so numerous as to constitute a nuisance. The biological community has changed somewhat over the years in terms of relative abundance of various species, but this variabiliy has been relatively minor and is consistent with natural variation. Both the fish and benthic macroinvertebrate community structures are diverse and resilient and do not resemble a simplei successional stage than is natural for the locality. Continued thermal discharge has not reduced successful completion of life-cycles of the indigenous species or those re-introduced migratory species. Furthermore, the thermal discharge has not eliminated any established or potential economic or recreational use of the River. Thus, the.available biological monitoring data demonstrates the requisite assurance of the protection and propagation of the balanced indigenous aquatic community of the Connecticut River in the vicinity of Vermont Yankee.

2.0 BENTHIC MACROINVERTEBRATES 2.1 METHODS Macroinvertebrate samples were collected at four locations in the Connecticut River from 1991 through 2001. Two locations (Stations 2 and 3) are downstream from Vernon Dam and two (Stations 4 and 5) are upstream from the Dam (Figure 1-1). The two sampling methods used from 199 1through 2001 were grab sampling (Ekman grab prior to 1996; Ponar grab 1996 to present) and "rock basket" colonization

.sampling. Beginning in 2002, and continuing to present, changes in the benthic macroinvertebrate monitoring program were requested by the Vermont Agency of Natural Resources (VANR) and implemented by Vermont Yankee. The revised benthic macroinvertebrate program beginning in 2002 deployed rock basket colonization samplers at two locations in the Vernon Dam tailwaters downstream 191-2004 vY NPODES emet *enewa-1-na.socw2OS I NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis from Vernon Dam, Stations 2 and 3 (Figure 2-1). No grab sampling was required by VANR after 2001, and no benthic macroinvertebrate sampling was required by VANR in the Connecticut River upstream from Vernon Dam (Stations 4 and 5). Since the data analyzed in the 316(a) Demonstration Report April 2004 (Normabdeau 2004) from 1991-2002 includes all of the permit-required grab sampling effort and all of the permit-required rock basket samples collected in the Connecticut River upstream from Vernon Dam, this report will present the inter-annual trend analysis based on the addition of the new data collected in 2003 and 2004 by rock basket sampling from the two locations (Stations 2 and 3) found downstream from Vernon Darn.

Sampling effort has varied during the 1991-2004 period due to equipment loss, .changes in gear, and changes in permit monitoring requirements. In an attempt to adjust or standardize these data for the sampling gear and deployment variability, count data from rock basket samples were standardized as the number of invertebrates collected per rock basket per 30 days of deployment. However, these adjustments do not fully standardize for the gear differences (Appendix 4 of the 316(a) Demonstration Report, April 2004; Normandeau 2004) so statistical trend analysis of the rock basket data presented in this report was only performed using the 1996 through 2004 data collected by Normandeau using fully documented procedures (Normandeau 2005a).

Rock basket samples were collected after 30 to 60 days (average 48 + I, N=77) Connecticut River exposure on two occasions during the interval June through October in each year, except from 2001 to present when VANR directed in the current NPDES permit that an additional sampling effort be undertaken at Stations 2 and 3, and that sampling at Stations 4 and 5 be eliminated. Each rock basket sample was transported in an individual bucket to the laboratory where the samplers were disassembled and the rocks were rinsed over U.S. Standard No. 30 sieves. From 2001 on, samples were rinsed and

• ,' preserved in the field with 70% ethanol for later identification. All organisms found attached to the rocks in each sample were removed and preserved along with the sample residue retained on the sieves. The residue from one of each pair of rock basket samples collected at each station per sample date was randomly selected for macroinvertebrate sorting under 2X magnification from 1996 to 2000 6nd extrapolated to 2 baskets. From 2001 until present, each rock basket was sorted and identified in its entirety. At least 100 macroinvertebrates were sorted from each sample (if present), and the sorted organisms were examined with a stereomicroscope, identified, and enumerated. Counts by taxon were

• extrapolated to total numbers for entire samples based on the fraction of each sample analyzed.

The macroinvertebrates in each sorted fraction were identified to the lowest practical taxonomic level, given their life stage and condition, using dissecting (45X magnification) and compound (1,00OX magnification) microscopes. Chironomids and oligochaetes were separated by subfamily, tribe, or

.recogni.ible type prior to identification to the genus/species level. All or representative subsamples from each grouping were prepared by clearing and mounting, and identified with a compound microscope.

Where subsampled, the number of specimens identified to genus/species was used to proportion the remaining individuals from each group into specific taxa. In instances where chironomids or Oligochactes could be identified to genus or species without the aid of a compound microscope, no preparation was necessary.

A nonparametric Mann-Kendall test was used to examine the 1996-2004 annual time series of each major grouping of macroinvertebrate CPUE for significant inreasing or decreasing trends (Helsel and Hirsch 1991, Chapter 12). The field sampling design has consistently sampled Stations 2 and 3 in the Connecticut River downstream from Vernon Dam during the same months in each of the nine most recent consecutive years in the rock basket time series (1996-2004), making annual mean CPUE the appropriate 1991-2004 VY NPDES P t Rean waI-uinal.doc 9/28/05 2 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis response variable in the time series analysis. All invertebrates for a given year were grouped into nine S major taxonomic groupings (Crustacea, Diptera, Ephemeroptera, Gastropoda, Oligochaeta, Other, Pelecypoda, Trichoptera, and Turbellaria) at the request of VANR. Rock basket effort was standardized across samples by converting total abundance of a major taxonomic grouping in a year to numbers of that taxon per basket per 30 days of deployment. The Mann-Kendall test is robust with respect to parametric assumptions of data normality and variance heterogeneity (Helsel and Hirsch 1991; Siegel 1956), and was performed on untransformed data. The null hypothesis was that there is no statistically significant (p<0.05) trend in a taxon's abundance during the period analyzed as measured by the Kendall Tau b correlation coefficient. If a statistically significant negative (decreasing) trend is observed, it will be interpreted with respect to whether Vermont Yankee's thermal discharge may be a contributing factor.

Finding no significant trend over time or finding a significant increasing trend will be considered to statistically support a finding of"no prior appreciable harm."

2.2 RESULTS AND DISCUSSION The benthic macroinvertebrate community present in the River upstream and downstream of Vernon Dam is representative of a balanced indigenous population not adversely affected by operation of Vermont Yankee. Fourteen years of permit-required monitoring produced samples that contained a diverse mixture of taxa, including invertebrate species considered sensitive to poor water quality or habitat disturbance, therefore demonstrating that such conditions exist below detectable levels affecting populations.

Although the numbers of individuals, numbers of taxa, and taxonomic composition varied year to year, the observed shifts were well within the range of natural stochastic and response processes affecting invertebrate populations.

Total numbers of macroinvertebrates collected in rock baskets and sample composition based on higher taxonomic groups (Order and above) are presented in Table 2-1. Total number of macroinvertebrates collected in rock baskets ranged from.50 individuals at Station 2 in 1997 to 9,181 individuals at Station 3 in 2001. Total numbers excbcded 1,000 individuals in nine out of fifty station by year comparisons.

There is no discernable relationship between station location and total numbers of macroinvertebrates collected.

The identity of the higher taxonomic groups collected in greatest numbers by rock basket sampling varied greatly from year to year at most stations. The exception was Station 5, where Diptera and Crustacea were collected in greatest numbers in 10 of 12 years of sampling. This variability is likely due to the microhabitat that the rock baskets were deployed in, for instance whether they were deployed in sand or gravel substrates at a station with diverse microhabitats. Other faciors that may influence the colonizing taxa are the amount of organic material captured by the rock basket, the degree of primary production during incubation, and the availability of colonizing taxa from surrounding substrate. These factors are all influenced by the particular timing and microhabitat of deployment with respect to river flow conditions.

Given these and other sources of variation, the rock basket samples doreflect the availability of colonizing taxa, the overall condition of the dominant invertebrate prey taxa, and a gross measurement of abundance. These data can be used to judge not only the presence and maintenance of a balanced indigenous population but also the degree of plasticity in the invertebrate community to adjust to changes in habitat.

Overall community composition and species richness appears to have remained relatively constant k throughout the 1996-2004 time period based on the 20 separate trend analyses completed for each taxon 191.-24 vY NPDES Pern* Renewa-FkaLoc W2OS 3 NormandeauAssociates,Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis and station (Table 2-2, Figures 2-2 through 2-11). No significant (p-values less than 0.05) increasing or

, decreasing trends were among these 20 tests (Table 2-2).

Macroinvertebrate relative species abundance and annual total abundance have remained nearly constant during the annual 1991 to 2004 monitoring programs. Contributions of each taxonomic group to overall

.species abundance has varied little over the monitoring period, allowing for changes in taxonomic scrutiny and gear changes in 1996 and 2000, respectively. Mann-Kendall correlation analyses showed a non-significant but decreasing trend from eight of the twenty analyses conducted, while eleven tests showed non-significant positive trends in catch for certain taxa. The remaining two tests showed no readily discernable overall trends. Therefore, these trend analyses collectively demonstrate that the macroinvertebrate community in the vicinity of Vermont Yankee has maintained a stable community composition and is considered to statistically support a finding of"no prior appreciable harm."

3.0 FISH Nine Representative Important Species of fish (RIS) were identified by VANR using USEPA's criteria and analyzed using the same methods in the 316(a) Demonstration Report April 2004 (Normandeau 2004).

The nine fish species identified as RIS are: American shad (Alosapseudoharengus),

Atlantic salmon (Salmo salar),spottail shiner (Notropishudsonius), smallmouth bass (Microperusdolomieu),

yellow perch (Percaflavescens),walleye (Sander viru formerly Stizostedion.vitreum), largemouth bass (Microperwsalmoides),failfish (Semotilus corporalis), and white sucker (Catdtomus commerson). The lentic guild of fish represents the community inhabiting slow flowing or ponded areas of the Connecticut River like the habitat sampled by permit-required general electrofishing upstream from Vernon Dam in a reach of the Connecticut River referred to as lower Vernon Pool (Figure 3-1).

The lotic guild of fish

• ' represents the community inhabiting the rapid flowing or turbulent areas of the Connecticut River like the habitat sampled by general electrofishing downstream from Vernon Dam in the Vernon Dam tailrace (Figure 3-1). The lentic guild of RIS is represented by largemouth bass and yellow perch, while smallmouth bass and fallfish represent the lotic guild. Walleye, white sucker, and spottail shiner are considered generalists that occupy both lentic and lotic guilds. American shad and Atlantic salmon and are both anadromous species, with the adults passing through both lentic and lotic habitats in the vicinity of Vermont Yankee during the spawning migration, while their egg, larval and juvenile life stages inhabit the lentic and lotic (shad) or lotic (shad and salmon) habitats at certain times of the year until they migrate to the sea.

3.1 METHODS Electrofishing and trap net sampling occurred during May, June, September and October of each year, unless excessively high or low water levels or extremely dense vegetation rendered sampling dangerous or ineffective. Electrofishing was performed throughout the 14-year period, while trap net sampling was discbntinued at the direction of VANR and the EAC after 1999. The data analyzed in the 316(a)

Demonstration Report April 2004 (Normandeau 2004) from 1991-2002 includes all of the permit-required trap net sampling effort and all of the permit-required general electrofishing samples collected in the Connecticut River at permit-required locations both upstream'and downstream from Vernon Dam. Since there is no new trap net data, the analysis of the 1991-1999 trap net tine series will not be repeated here.

This section of the report will present the inter-annual trend analysis of general electrofishing data based on the addition of the new data collected in 2003 and 2004 to represent the 1991-2004 inter-annual time series.

1991-2004 VY NPOES Pemit Renewal-FnaLdoc 9/2805A 4 Normandeau Associates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Electrofishing was performed with a boat electroshocker employing a bow-mounted cathode array and a

~ Coffelt Electronics Model VVP-15 variable voltage pulsator. Sampling was carried out in the evening beginning approximately 0.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> after sunset. Eight stations with a total of 10 sub-locations (six located upstream and four downstream of Vernon Dam) were sampled (Figure 3-1). Electrofishing is an active sampling method wherein the boat moves through a sampling site. Fish encountering the electrical field in front of the boat are stunned, netted from the water, temporarily held in a livewell for proce.sing and then released. Fish collected were identified to species, enumerated, weighed to the nearest gram (wet weight),

and measured for total length to the nearest millimeter. Electrofishing samples represented about 15 or 20 minutes of current applied to the water, and the catch per unit of effort (CPUE) was expressed as the number of fish caught per hour.

4-A nonparametric Mann-Kendall test was used to examine the 1991-2004 general electrofishing time series for significant increasing or decreasing trends (Helsel and Hirsch 1991, Chapter 12) in annual total catch per unit of effort (CPUE expressed as fish caught per hour of electrofishing effort) for the entire fish community (Total) and for each of the nine RIS and analyzed using the same methods in the 316(a)

Demonstration Report April 2004 (Normandeau 2004). The field sampling design has relatively consistently sampled the same stations with the same gear during the same months in each ofthe 14 consecutive years in the electrofishing time series, making annual total CPUE the appropriate response variable in the time series analysis (Appendix 4 in Normandeau 2004). The Mann-Kendall test is robust with respect to parametric assumptions of data nomality and variance heterogeneity (Helsel and Hirsch 1991; Siegel 1956), and was performed on untransformed annual total CPUE. the null hypothesis was that there is no statistically significant (p<0.05) interannual trend in abundance during the period analyzed as measured by the Kendall Tau b correlation coefficient. If a statistically significant negative

, (decreasing) trend was observed, it was interpreted with respect to whether the plant thermal discharge may be a contributing factor by examining the time series trend in a subset of the data representing the population directly exposed to Vermont Yankee's thermal plume compared to the population outside of the influence of the plume. Finding no significant trend over time or finding a significant increasing trend was considered to statistically support a finding of"no prior appreciable harm."

3.2 RESULTS AND DISCUSSION The fish community observed through this permit-required electrofishing program consists of over 35 species, most characteristic of warm-water environments. The Vernon Dam tailwaters provide a lentic (free-flowing) habitat and Vernon Pool provides a lotic (pond-like) habitat for this fish community, and these habitat differences are reflected in the composition of dominant fish species in each location. A total of 12,512 fish specimens representing 36 taxa were obtained in the combinedgeneral electrofishing collections at sampling stations in Vernon Pool located upstream from Vernon Dam during the period 1991 - 2004 (Table 3-1). The most common fishes, making up at least 5% of the combined total electrofishing catch in Vernon Pool over the 14-year period, were yellow perch (35.8%), bluegill (19.5%),

pumpkinseed (9.2%), spottail shiner (8.6%), and largemouth bass (6.7%) (Table 3-1). In the Vernon Dam tailwaters located downstream from Vernon Dam a total of 5,032 fish specimens representing 35 taxa were obtained in the combined general electrofishing collections at sampling stations located in the tailwaters during the period 1991 - 2004 (Table 3-2). The most common fishes, making up at least 5% of the combined total electrofishing catch in Vernon Dam tailwaters over the 14-year period, were smallmouth bass (27.2%), spottail shiner (17.5%), American shad (10.9%), rock bas (8.3%), white sucker

/(7.4%), bluegill (6.2%) and fallfish (6.2%) (Table 3-2). Only one Atlantic salmon smolt was collected 19g1.2004 VY NPOES Permit Renew-F'Ldoc=t2B5 5 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis among the 576 general electrofishing samples taken since 1991, and this one fish was caught in the v Vernon Dam tailwaters in 1995 *(Table3-2). American shad was the most numerous'anadromous fish in both Vernon Pool (1.1 fish/hour, Table 3-I ) and in the Vernon Dam tailwaters ( 10.2 fish/hour, Table 3-2).

Blueback herring was rarely seen. Sea lamprey and American eel were collected fairly regularly, but in very low numbers. Typical cold-water species, other than one brook trout collected downstream from Vernon Darn in 2002, were not collected during the 1991 - 2004 time series and were rarely collected in prior years (Downey et al. 1990).

Overall, general electrofishingCPUE both upstream and downstream of Vernon Dam displayed an increasing trend over the 14-year period (Kendall Tau b = 0.121 for both), although this trend was not significant (p = 0.547 for both for the total of all fish species combined (Figure 3-2).

3.2.1 American Shad The annual catch of American shad by electrofishing from 1991-2004 in lower Vernon Pool (Table 3-1) was highest in 1992 (3.6 fish per hour). No American shad were caught by electrofishing in the lower Vernon Pool in years 1997, 1998, 1999, 2001, 2002, 2003 or 2004. Catch per unit effort of American shad by electrofishing was higher downstream from Vernon Dam (Table 3-2) where the highest annual CPUE was in 1991 (30 fish per hour) and the lowest in 1999 (0.4 fish per hour).

No statistically significant negative (decreasing) trend was observed in American shad annual total CPUE during the 1991-2004 period in the Vernon Dam tailwaters (Figure'3-3B). The blectrofishing time series from the Vernon Dam tailrace area exhibited a Kendall Tau b of -0363 with a probability level of p=0.071 (Figure 3-3B). However a statistically significant decreasing trend was observed in the time series of annual total electrofishing CPUE from lower Vernon Pool, which exhibited a Kendall's Tan b of

-0.652 with a probability level of p=0.002 (Figure 3-3A). A similar decreasing trend in lower Vernon Pool was observed in the 1991-2002 electrofishing CPUE time series in the 316(a) Demonstration Report April 2004 (Normandeau 2004), which was attributed to lower annual fish passage counts in recent years at the Vernon Dam fishway beginning in about 1997 and continuing through 2003.

A closer examination of the significantly decreasing inter-annual trend in juvenile American shad CPUE observed in the general electrofishing program during 1991-2004 revealed that the decrease occurred both at sampling stations upstream from Vermont Yankee's discharge and at stations exposed to the thermal plume in lower Vernon Pool (Figure 3-4). .Stations 5, Rum Point, and the New Hampshire Setback (Figure 3-1) were all upstream from the influence of Vermont Yankee's thermal plume, and the trend in the combined general electrofishing CPUE forjuvenile American shad from these upstream locations exhibited. a significant decreasing treed with a Kendall Tau b correlation coefficient of -0.636 and a significance probability of p=0.004 (Figure 3-4A). Station 4 was within lower Vernon Pool but downstream from Vermont Yankee's discharge (Figure 3-1), and the trend in the combined general electrofishing CPUE for juvenile American shad from this downstream location also exhibited a significant (p=0.024) decreasing trend with a Kendall Tau b correlation coefficient of -0.489 (Figure 3-4B). Therefore, it is-unlikely that the finding of an overall significant decrease injuvenile American shad CPUE from the general electrofishing program conducted in lower Vernon Pool during the period 1991 through 2004 can be attributed to Vermont Yankee's thermal discharge.

The decrease in American shad CPUE observed in the general electrofishing program conducted in lower Vernon Pool during the period 1991 through 2004 is most noticeable beginning in 1996 or 1997 and continuing through 2{004 (Figure 3-3). When Normandeau first began the field program in 1996, our field 1991-2ý04 VY NPDES Permit RC*va-Fimal.docVAM 6 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis biologists observed what appeared to be the ineffectiveness of the electrofishing gear to stun and capture

, juvenile American shad in lower Vernon Pool, while the same gear and deployment practices were effective in capturing juvenile American shad in the Vernon Dam tailrace (Bulletin 71; Normandeau 1998). The observed ineffectiveness applied to both the general electrofishing survey, and to a supplemental survey referred to as the anadromous fish electrofishing survey, which sampled biweekly in the intervening times between the monthly general electrofishing sampling events in each year.

Numerous discussions were held between Normandeau, the EAC, and VANR, and several field evaluations were performed among these parties in a failed attempt to diagnose and remedy the-situation.

Finally, in 2000, and with the concurrence of the EAC and VANR, the anadromous electrofishing program in lower Vernon Pool was replaced with a biweekly program of seining and midwater trawling (Bulletin 76; Normandeau 2001). This biweekly "juvenile shad" program has continued annually to date, with the program sampling exclusively with seines beginning in 2004 (Bulletin 82; Normandeau 2005b).

Standing crop estimates ofjuvenile shad abundance in lower Vernon Pool based on the juvenile shad program have varied by more than an order of magnitude among the five years (2000-2004), and appear related mostly to the number of female American shad passing upstream through the Vernon Dam fishway into Vernoh Pool and spawning there (Bulletin 82; Normandean 2005). Therefore, the significant decrease in American shad annual total CPUE for electrofishing in lower Vernon Pool is most likely due to a change in the collection efficiency of the sampling method beginning in 1996 and not due to any effect of Vermont Yankee.

3.2.2 Atlantic Salmon The restoration program for Atlantic salmon has met with limited success, and very low numbers of adults are re-entering the Connecticut River currently. Atlantic salmon are rarely collected during the Sregular permit-required monitoring program for Vermont Yankee; just three salmon smolts Were collected by trap net and electrofishing combined over the past 14 years between 1991 and 2004. No salmon were collected in lower Vernon Pool by the permit-required electrofishing monitoring (Table 3-1) or by trap netting (Normandeau 2004), and only one salmon smolt was captured (in 1995) by electrofishing downstream from Vernon Dam between 1991 and 2004 (Table 3-2). The remaining two smolts were collected in trap nets fished downstream from Vernon Dam in 1991 (Normandeau 2004). The annual salmon electrofishing CPUE downstream of Vernon Dam in 1995 was 02 fish per hour, which was 0.3%

of the total catch (Table 3-2). The 1991 salmon trap net CPUE and percent composition downstream of Vernon Dam was 0.05 fish per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and 02.% of total catch, respectively (Normandeau 2004). This rare occurrence of Atlantic salmon smolts in the permit-required electrofishing survey performed from 1991 through 2004 precludes any meaningful statistical trend analysis of these data.

3.2.3 Spottail Shiner The annual catch per unit effort (CPUE) of spottail shiner'by electrofishing from 1991-2004 in lower Vernon Pool (Table 3-1) was highest in 1996 (72 fish per hour) and lowest in 2004 (1.5 fish per hour).

CPUE of spottail shiner by electrofishing was similar downstream from Vernon Dam (Table 3-2) where annual CPUE was highest in 1996 (55 fishý er hour) and lowest in 1995 (4.4 fish per hour). No statistically significant trends were observed in spottail shiner annual total CPUE during the 1991-2004 period, supporting a finding of"no prior appreciable harm" to spottail shiner due to Vermont Yankee's continued operation. The time series of annual total electrofishing CPUE from lower Vernon Pool exhibited a Kendall's Tau b of -0.209 with a probability level of p=0.298 (Figure 3-MA), while the 1991.2004 VY NPDES Pemft ReWa-FWlbdoc 128/ 7 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis electrofishing time series from the Vernon Dam tailrace area exhibited a Kendall's Tau b of -0.143 with a

,, probability level of p=0. 44 7 (Figure 3-5B).

3.2.4 Smallmouth Bass The annual catch rate (i.e. total catch per unit effort or CPUE) of smallmouth bass by electrofishing from 1991-2004 in lower Vernon Pool (Table 3-1) was highest in 1998 (6 fish per hour) and lowest in 2004 (0 fish per.hour). The CPUE of smallmouth bass by electrofishing was higher downstream from Vernon Dam (Table 3-2) where annual CPUE was highest in 2001 (73 fish per hour) and lowest in 1992 (14 fish per hour). No statistically significant negative (decreasing) trends were observed in smallmouth bass annual mean CPUE during the 1991-2004 period, supporting a finding of"no prior appreciable harm" due to Vermont Yankee's continued operations. The time series of annual total electrofishing CPUE from ower Vernon Pool exhibited a Kendall's Tau of.-0.l187 with a probability level of p=0.3 52 (Figure 3-6A),

while the electrofishing time series from the Vernon Dam tailrace area exhibited a Kendall's Tau b of 0.319 with a probability level of p=0.1 12 (Figure 3-6B).

3.2.5 Yellow Perch The annual catch of yellow perch by electrofishing from 1991-2004 in lower Vernon Pool (Table 3-1) was highest in 2001 (114 fish per hour) and lowest in 1992 (32 fish per hour). Catch per unit effoit (CPUE.) of yellow perch by electrofishing was lower downstream from Vernon Dam (Table 3-2) where annual CPUE was highest in 1999 (17 fish per hour) and lowest in 2002 (0A fishoper hour). No statistically significant negative (decreasing) trends were observed in yellow perch annual CPUE during the 1991-2004 period, supporting a finding of "no prior appreciable harm" due to Vermont Yankee's continued operations. The time series of annual electrofishing CPUE from lower Vernon Pool exhibited a Kendall's Tau b of -0.011 with a probability level of p=0.956 (Figure 3-7A), while the electrofishing time series from the Vernon Dam tailrace area exhibited a Kendall's Tau b of -0.253 with a probability level of p=0.2 8 (Figure 3-7B).

3.2.6 Walleye Electrofishing CPUE in the Vernon Dam tailrace averaged 1.9 fish per hbur.compared to 1.2 fish per hour in lower Vernon Pool during 1991-2004 (Tables 3-1 and 3-2). The range in annual electrofishing CPUE in the Vernon Dam tailrace was 0.0 fish per hour in 2004 to 4A fish per hour in 1999 (Table 3-2). The range in annual electrofishing CPUE in lower Vernon Pool was 0 fish per hour in 2003 and 2004 to 1.9 fish per hour in 1991 (Table 3-1). The nonparametric Mann-Kendall test used to examine the annual catch rate data for significant increasing or decreasing trends during 1991-2004 revealed a significant, decreasing trend in walleye abundance for the electrofishing time series in both lower Vernon Pool and in the Vernon Dam tailwaters (Figure 3-8). The Kendall Tau b coefficient was -0A64 at a probability level ofp-4.021 for the Vernon Pool time series (Figure.3-8A). The Kendall Tau b coefficient was -0.451 at a probability level of p=0.025 for the Vernon Dam tailrace time series (Figure 3-8B).

The electrofishing time series data for walleye was subject to further analysis by partitioning it into stations in lower Vernon Pool that were exposed to Vermont Yankee's thermal discharge (Station 4; Figure 3-1) and those further upstream and not exposed to the influence of Vermont Yankee's thermal plume (Stations 5, Rum Point, and the New Hampshire Setback; Figure 3-1) to see if the decreasing trend was attributed to proximity to Vermont Yankee's discharge. The electrofishing CPUE time series from stations in Vernon Pool that were upstreamand not exposed to Vermont Yankee exhibited a significant 1991-2004 VY NPDES Permit Renewa-Wal.doc 9/28/05a .8 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES Permit Renewal Trend Analysis (p=0. 3 8 ) decreasing trend with a Kendall's Tau b correlation coefficient of 0A31 (Figure 3-9A), while the time series from stations exposed to Vermont Yankee exhibited no significant decreasing trend (Kendall's Tau b correlation coefficient = -0. 17 1, p=..405; Figure 3-9B).

Partitioning the walleye electrofishing time series data obtained by general electrofishing in the Vernon Dam tailrace into the most upstream sampling stations found between the foot of the dam (Station 2) and Stebbins Island (Figure 3-1), and stations.at least four miles downstream from the dam revealed a significant decreasing trend in' both zones (Figure 3-9C and 3-91)). Stations 0.1 miles south of Vernon Dam, Station 3 and Stebbins Island (Figure 3-1), were all in the most upstream portion of the tailrace and closest to the influence of Vermont Yankee's thermal plume, and the trend in the combined general electrofishing CPUE from these upstream locations exhibited a significant decreasing trend with a Kendall Tau b correlation coefficient of -0.407 and a significance probability of p-0.043 (Figure 3-9C).

Station 2 was located about four miles downstream from Vernon Dam (Figure 3-1), and the trend in the combined general electrofishing CPME from this downstream location also exhibited a significant decreasing trend with a Kendall Tau b correlation coefficient of-0.467 and a significance probability of p=0.029 (Figure 3-91)).

Therefore, it appears that there was an overall decrease in walleye electrofishing CPUE in both lower Vernon Pool and in the Vernon Dam tailwaters during the period 1991 through 2004. However, this decrease could not be attributed to Vermont Yankee's thermal discharge because a significant time series trend was not observed at the sampling locations in lower Vernon Pool in direct contact with the plume.

Therefore, it is unlikely that the finding of an overall significant decrease in walleye CPUE from the general electrofishing program conducted in lower Vernon Pool during the period 1991 through 2004 can be attributed to Vermont Yankee's thermal discharge.

3.2.7 Largemouth Bass The annual catch rate (i.e. catch per unit effort or CPUE) of largemouth bass by electrofishing from 1991-2004 in lower VernonPool (Table 3-1) was highest in 2001 (23 fish per hour) and lowest in 1998 (7 fish per hour). The CPUE of largemouih bass by electrofishing was lower downstream from Vernon Dam (Table 3-2) where annual CPUE was highest in 2001 (3 fish per hour) and lowest in 2000 (0 fish per hour). No statistically significant negative (decreasing) trends were observed in largemouth bass annual mean CPUE during the 1991-2004 period, supporting a finding of"no prior appreciable harm" due to Vermont Yankee's operations. The time series of annual mean electrofishing CPUE from lower Vernon Pool exhibited a Kendall's Tau b of -0.385 with a probability level of p=0.055 (Figure 3-10A), while the electrofishing time series from the Vernon Dam tailrace area exhibited a Kendall's Tau b of -0.221 with a probability level ofp=0.273 (Figure 3-1OB).

3.2.8 Fallfish A total of two fallfish were captured by electrofishing upstream of Vernon Dam from 1991 - 2004 (Table

• 3-1). Catch per unit effort of fallfish by electrofishing was higher downstream from Vernon Dam (Table 3-2) where the highest annual CPUE was in 1999 (31.9 fish per hour) and the lowest in 1997 (0 fish per hour). Falifish were not captured in great numbers above Vernon Dam because they prefer flowing water found in the lotic habitat of the Vernon Dam tailrace. No statistically significant negative trends were observed in fallfish annual total CPUE during the 1991-2004 period. The time series of annual total

(,electrofishing CPUE from lower Vernon Pool exhibited a Kendall's Tau b of -0.398 with a probability lMgt-2004 VY NPDES Permit RenwaW-Fmatdoc 9/2Qn5 9 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES Permit Renewal Trend Analysis level of p1=0. 0 8 4 (Figure 3-11IA). The electrofishing time series from the Vernon Dam tailrace area Sexhibited a Kendall's Tau b of -0.044 with a probability level of p-'0.82 6 (Figure 3-11 B).

3.2.9 White Sucker The annual catch of white sucker by electrofishing from 1991-2004 in lower Vernon Pool (Table 3-1) was highest in 1994 (16.6 fish per hour) and lowest in 2004 (1.0 fish per hour). Catch per unit effort (CPUE) of white sucker by electrofishing was similar downstream from Vernon Dam (Table 3-2) where annual CPUE was highest in 1991 (13.0 fish per hour) and lowest in 2004 (1.9 fish per hour). A statistically" significant negative (decreasing) trend was observed in white sucker annual total CPUE during the 1991-2004 period for electrofishing. General electrofishing CPUE decreased significantly in both lower Vernon Pool and in the Vernon Dam tailrace (Figure 3-12). The time series of annual mean electrofishing CPUE from lower Vernon Pool exhibited a Kendall's Tau b of -0.648 with a probability level ofp=0.001 (Figure 3-12A), while the electrofishing time series from the Vernon Dam tailrace area exhibited a Kendall's Tau b of -0.648 with a probability level of p=0.001 (Figure 3-12B).

Partitioning the white sucker CPUE data obtained by general electrofishing in lower Vernon Pool into sampling stations upstream from Vermont Yankee's discharge and stations exposed to the thermal plume revealed that significant decreasing trends existed in both areas (Figure 3-13). Stations 5, Rum Point, and the New Hampshire Setback (Figure 3-1) were all upstream from the influence of Vermont Yankee's thermal plume, and the trend in the combined general electrofishing CPUE frorpthese upstream locations exhibited a significant decreasing trend with a Kendall Tan b correlation coefficient of -0.626 and a significance probability of p=0.002 (Figure 3-13A). Station 4 was located in lower Vernon Pool but downstream from Vermont Yankee's discharge (Figure 3-1), and the time series in the combined general

\_ electrofishing CPUE from this location also exhibited a significant decreasing trend with a Kendall Tau b correlation coefficient of -0.648 and a significance probability ofp-0.001 (Figure 3-13B). Further partitioning of the Station 4 general electrofishing CPUE data for white sucker into the samples taken along the Vermont shore closest to Vermont Yankee's discharge, and the samples taken along the New Hampshire shore that were downstream but opposite Vermont Yankee's discharge, revealed that both subsets exhibited significant decreasing trends in white sucker CPUE between 1991 and 2004 (Figure 3-13C and 3-13D). Therefore, there was a significant decrease in white sucker CPUE from the general electrofishing program conducted throughout lower Vernon Pool during the period 1991 through 2004 in both areas exposed and not exposed to Vermont Yankee's thermal plume.

Partitioning the white sucker CPUE data obtained by general electrofishing in the Vernon Dam tailrace into the most upstream sampling stations found between the foot of the dam (Station 2) and Stebbins Island (Figure 3-1), and stations at least four miles downstream from the dam revealed a significant decreasing trend nearest to the dam and no trend further downstream (Figures 3-13E and 3-13F). Stations 0.1 miles south of Vernon Dam, Station 3 and Stebbins Island (Figure 3-1), were all in the mostupstream portion of the tailrace and closest to the influence of Vermont Yankee's thermal plume, and the trend in the combined general electrofishing CPUE from these upstream locations exhibited a significant decreasing trend with a Kendall Tau b correlation coefficient of -0.685 and a significance probability of p=0.001 (Figure 3-13E). Station 2 was locaied about four miles downstream from Vernon Dam (Figure 3-1), and the trend in the combined general electrofishing CPUE from this downstream location exhibited no significant trend with a Kendall Tau b correlation coefficient of -0.326 and a significance probability of p=O.l 10 (Figure 3-13F). Therefore, there was a significant decrease in white sucker CPUE from the general electrofishing program in the tailrace area immediately below Vernon Dam during the period 1991-2004 VY NPDES Permit Renewal-nAldoc 9%27/0% 10 NonnandeauAssociates, Inc..

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis 1991 through 2002, but no significant decrease was observed further downstream in upper Turners Falls Pool.

In summary, white sucker has shown a significant decrease in annual total electrofishing CPUE throughout the entire permit-required monitoring area of the .Connecticut River for the time series from 1991 through 2004. This decrease represents a broad decline that was independent of proximity to Vermont Yankee's thermal plume.

4.0 REFERENCES

Downey, P.C., R.C. Binkerd, and DJ. Marx. 1990. 316 Demonstration, Engineering, Hydrological and Biological Information and Environmental Impact Assessment for Vermont Yankee Nuclear Power Corporation. Aquatec, Inc., So. Burlington, VT.

Helsel, D.R. and R.M. Hirsch. 1991. Chapter A3. Statistical Methods in Water Resources. U.S.

Geological survey. 510 p.

Normandeau Associates, Inc. 1998. Bulletin No. 71. Abundance ofjuvenile American shid in the Vernon Pool during 1997.

Normandeau Associates, Inc. 2001. Bulletin No. 76. Abundance ofjuvenile American shad in the Vernon Pool during 2000.

Normandeau Associates, Inc. 2005a. Abundance ofjuvenile American shad in'lhe Vernon Pool during 2004. Vermont Yankee/Connecticut RiVer System, Analytical Bulletin 82.

Normandeau Associates, Inc. 2005b. Entergy Nuclear Vermont Yankee, LLC Environmental Services Quality Program and Standard Operating Procedures for NPDES Permit Monitoring. Revision 2.

Normandeau Associates, Inc. 2004. §316(a) Demonstration in support of a request for increased discharge temperature limits at Vermont Yankee Nuclear Power Station during May through October. April 2004.

Siegel, S. 1956. Nonparametric Statistics for the Behavioral Sciences. McGraw Hill Book company, Inc. New York. 312 p.

1991-2004 VY NPOES Pem*t Renewal-Fial.doc9/r205 1 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Figure I-1. Connecticut River in the Vicinity of Vernon Pool.

1g91-2 004 VY NPOES Pemfd Raw~wal-FraI doe 912S15 112 omneuAscaeI NonnandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Figure 2-1. NPDES macroinvertebrate rock basket sampling at Stations 227 and 031.

191-2004 VY NPOES PemnRenewar-Fia.doc &?2805 13 NormandeauAssociatei, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis Crustacea A. Rock Basket, Vernon Dam Tailrace at Station 2 B. Rock Baskct Vernon Dam Tailrace at Station 3

ýendall Tau Comlaimo Coefficient -0.056 Kendall Tau Cmdation Coefficient -0.167 r0.93S p- 100 p- 0.532 0

40-o0 30'

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V 1996 19ý97 1998 1999 2000 2001 20M2 2003 2004 19*6 197 149 1ý99 2000 2001 2002 2d03 2004 YEAR YEAR Figure 2-2. Scatter plots comparing Crustacea annual catch (no.basket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont.

- Diptera Diptera A. Rock Basket, Vernon Darn Tailrace at Station 2 B. Rock Basket, Vernon Dam Tailrace at Station 3 Kendall Tau Cormo Coeffident 0.278 KendaUl Tan Cmcdation Coefficient 0.167 p-0.297 20 MO.532 n-9 n-9 175 C

40-IL A 125-S30:

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< 01 1996 1997 1998 1999 2600 2001 2002 .2003 2004 1996 1997 19S 1999 2000 2001 2002 2003 2004 YEAR YEAR Figure 2-3.. Scatter plots comparing Diptera annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont 1991.2004 VY NP~ _ES Pern* Renemwa.FmaLdoc 928/0" 14 NormandeauAssociates. r*c.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis Ephemeropterr Ephemeropten A. Rock Basket, Vernon Dam Tailrace at Station 2 B. Rock Basket, Vernon Dam Tailrace at Station 3 Kendall Tau Correlation Coeffiicot: 0.279 100 Kendall ro0-O.44Tau Corrclation Coefficient: 0.319 a In= 9 g40- ' 0ý 030-r.

40° 20:

0-. gS I

Lr 1996 1997 1993 1999 2000 2001 2002 2003 2004 146 197 198 199 2000 20oI 26n io03 2004 YEAR YEAR Figure 2-4. Scatter plots comparing Ephemeroptera annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vemiont.

GastropodsG Gastropods A. Rock Basket, Vernon l~an Tailrace at Station 2 B. Rock Basket, Vernon D~am Tailrace at Station 3 Kendall Tau Correation Cbcca 0.444 1Kendall Tau Corrado Cefficnt.-0.167 V-0.095 lO-p0.532 U-ie9 0 40-9 0

M 36 6ý 4-

• 2 6

- 10-' 2-0 0 0

< 0. 0 0-1996 19971993 1999 2ý0 20I 2002 203 2004. 1996 1997 1998 199 "2000 2001 2002 2003 2004 YEAR YEAR Figure 2-5. Scatter plots comparing Gastropoda annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont.

1991-2004 VY NPOES Permit Renewal-Fnal.doc W&28W0 15 NormandeauAssociates,Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Oligochaetj Oligochaeta A. Rock Basket, Vernon Dam Tailrace at Station 2 B. Rock Basket, Vernon Dam Tailrace at Station 3 Kendall Tau Corrclation Cgcfficient: .0.333 Kendall Tau Correlation Coefficient: -0.085

• 5.0] P0.211 n-9 t.-100 o.7ý3 4.0 0 0

• 2o a

0 . 4L:l

.~1A U 20

<0.0 1996 1997 1998 199 200o 2001 2002 2063 20'0 S 1996 1997 1998 1999 2)00 2001 2002 2003 2004

-YEAR YEAR Figure 2-6. Scatter plots comparing Oligochaeta annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont..

Other Othe A. Rock Basket, Vernon Darn Tailrace at Station 2 B. Rock Basket, Vernon Dam Tailrace at Station 3 8 Kendall Tau Crdalieo Coeffcient 0.000 KendaUl Tau Cnelain Coefficiet .0.389 N-, . -1M p- 0.144 U9 60.

n-0 2 6 20 a,

• 4-U C,

2-0: S

.1996 I1S 997 1999 21000 2001 2002 2003 2004 1996 1997 198 1999 2000 2001 2002 2003 2004 YEAR YEAR Figure 2-7. Scatter plots comparing annual catch (no./basket*30 days) of other macroinvertebrates for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont.

1991.2004 VY NPOES Permit Ra~wwa-Fina.doc 9028/05 16 1 omneuAscaeIc Normandeau Assoclatei, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Pelecypoda Pelecypoda A. Rock Basket., Vernon Darn Tailrace at Station 2 B. Rock Basket, Vernon Dam Tailrace at Station 3 1 Kcndall Tau Currdlation Coefficient: .0.327 Kendall Tau Cofrreation Cocfricicnt: 0.261 5.0 p- o.25q 7 .01 p- 0.357 n.-9 o,19 0 4.0J .0.7 V

0 0.7 0.4

• 4=0.0" -03'9

-202' 10.1

< 0.2-* -

1996 1997 1998 1999 2000 2001 2602 2003 2004 1 1997IM 9 1999 20 2*01 2002 203 2004 YEAR .YEAR Figure 2-8. Scatter plots comparing Pelecypoda annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont.

Trichoptern Trchoptern T

A. Rock Basket, Vernon Dan Tailrace at Station 2 B. Rock Basket, Vernon D5amn Tailrace at Station 3 e ndall Tau Correlation Coefficient 0.500

-1oo0 p-1.oooTau Cooci"on Coefficient 0.000 Keadall P- 0.O61 U-o 60 I,0 200

• 240 "

1 1946 1497 148S 1999 2000 7001 2002 2003 200 1 49 97 i991;;99 2000 26001 2002 '2003 2M0 YEAR YEAR Figure 2-9. Scatter plots cbmparing Trichoptera annual catch (noibasket*30 days) for rock basket during 1996-2004 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont.

1991-2004 VW NPDES Permit Renewal-Flnai.doc 9W2805 17 NormandeauAssociates,Inc.

1991-2004 Vermont Yankee NPDES Permit Renewal Trend Analysis Turbellaria Turbellaria A. Rock Basket, Vernon Dam Tailrace at Station 2 B. Rock Basket, Vernon Dam Tailrace at Station 3

,0! Kendall 6 Tau Correlation Coeflickm: 0.523 Kendall Tau Correlatinn Cocficient: 0,523

! . "p, 0.0Q5 27.100 p0. 65 0.9 n-09

-o

- 0.7i 0.6 90.4 i 0.3- 6ý6 U

0 023 g<0.01*

• 1996 1997 1998 1999 2000 2001 2002 2003 2O04 1996 147 1998 19 2&0 201 2&02 2003 2004 YEAR YEAR Figure 2-10. Scatter plots comparing Turbellaria annual catch'(nolbasket*30 days) for rock basket during 1993-2000 in Lower Vernon Pool and 1991-2002 in the Vernon Dam Tailrace of the Connecticut River near Vernon, Vermont.

Total A. Rock Basket, Vernon Dam Talirace at Station 2 B. Rock Basket, Vernon Dam Tailrace at Station 3

, 0 KedaW Tau Condaom COef¢fide o.2n 0.333 -0.135 Tau,Cotaioc Coefficient 0.056

-*O.p.Kemgh U-10 500 S

• 2S 0 j 141 1;97 1998~ 192000 200! 2602 '20032004 1996 19'97 1498 1999 2000 2001 2002 2003 2004 YEAR Figure 2-11. Scatter plots comparing total macroinvertebrate annual catch (noJbasket*30 days) for rock basket during 1996-2004 in the Vernon Darn Tailrace of the Connecticut River near Vernon, Vermont.

1991-2004 VY NPOES Pem-A Ree*wxa~lnaLdoc OM2805 '18 NormandeauAssociates;'Inc.

(C ( (

Table 2-1. Composition of macroinvertebrates collected In rock baskets placed in the Connecticut River upstream and downstream of Vernon Dam, 1991 through 2004. Upstream rock basket sampling was discontinued in 2002.

I sI% .

INo.

Me IN.I%INo.i 1" I %A . 1N94 .% 0o1jN Io. I 7I6 I

1J37 I . I%

Me1% IN I '%I 11.

N*.[ 20MI%

2002 jl 1 2003

% I No. I % I No. I 1 2004 VQIWISITIEfl OMMio

• 20 28 Cnaslsm.

0.1 107j 10.1 4.8 3A 101 92 5.0 8 1.4 20 14., 4.0 4.7 2 2.4 101 17.7 47 0.0 Y2 5.0 1:4 DIPIOU2.52. 111 4A, 132 23.0 296 307 27.7 1o 66.7' 24 0? 12.1 29.7 10 7.6 2

12.0 200 31.8 10 17..2 13.9 56 1760 137 24.0 144 ISA 540 29.6 98 01 1.

4.7 o9 207 18.7 i1A so 37.3 4.0 11.0 44 0 0.0 I" 25.2 232 29.7 311 17.1 32.0 Is 26 301 3.0 18 1.8 191 0.9 1.5 26 2 '52.0 22 8.7 40 0 0.0 10.0 112 14.31 172 9.4 19.1 Ol0goduets 40.3 1.,.,1 9.2 13 26 2.3 1.0 3.0 26 0.0 1.0 ST 1 0.7 10t .

2.0 6.1 4 6.5 4 10 11.9 11 1.9 7 0.9 0NO Other10320209 43 29 5.3 20 o.51 74s 8.7 10 14 10.4 0 4.0 6.3 22 8.0 0.0 3.8 38 2 3.

7 1.7 142 25.? 1.0 0 22 3.9 36 4.6 30 31.0 6 0.1 0.2 2 1.6 12 0.0 0 0.0 4 .4 .4.8 0.0

- a17 10.6 18,16

.e.ft00 437 0 0.0 0 0 .

14.0 Be, 2TA, 221 34.4 32 23.9 0 24.0 62 32.3 is 7.0 12 14.3 93 16.3 197 25.2 0.0 174 3.4 0.0 At* 'o*3 4lAJ8 274 a"

-0 4MA0.0 37 0 4000 0.0 41,0-h ,I0 0.0 41,1,1 0 0.0 4000 a' 0.0 a 1.1 a 0.8 0.2 Y.h A L2 AfrO 'Wak qfth*; "th MOM_1 I M4 W0a 1~1 4E 10. O18.004it 00 4loe 614 -2

_(sse 1 1.0 94 0.9 41 11.0 30 4A 19 4A i 13.6 0T 0.' 4 2.5282. s4 80.8 47 5 ~*5~. 1T 1.t UlptIf 2 26A.8 91 10.0 65 17. 271 39.9 161 37.2 160 *16.0 11 4.6 a 28.8 10 1.2 4 3.8 .3 1050 30.7 72 207 473 45.5 Ephei W.ffl. 1 9.3 SO 6 3.7 69 1A6 18 1.8 0 0.0 20 6.6 24 27.3 10 9.6 401 Gastropoda 4.4 45 13.2 40 11. 1 18.0 7 7.2 18 2.1 45 12.1 74 10.9 3 0.7 6 0.6 10 4.8 44 1.7 4 4.5 6 5.8 72 0.8 13 0 0.0 10 0.4 2 0.6 .18 1.7 1.9 0 0.0 0 0.0 3 0.7 350 35.5 2 0.9 1.7 a 0.0 0 0.0 19 0.2 2 0.1 8 2.3 43 4.1 t0W 11.3 412 47.8 90 24.1 170 25.0 147 33.9 84 6.4 194 88.2 14 6.9 18 20.5 0 0.0 54 0.0 Pelcypoda 0 0.0 0 0.0 0 0.0 4 0.6 81 2.4 19 5.5 42 4.0 0 0.0 0. 0.0 0 0.0 2 0.8 0 0.0 0 0.0 a 0.1 0 0.0 3' 0.9 1 0.1 Tldchoptw 8 8.2 76 0.8 as 10.9 98 14.4 39 9.0 272. 27.1 4 1.8 118 80.0 2 2.3 0 0.0 7114 77.5 1M22 60.4 139 39.9 224 21.5 Turbulaufa 318 37.1 "1O 11.1 0 0.8 1.2 2 0*. 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 984 Total t 10.7 a8 2.5 4 1.1 41 3.9 7 000 862 100.0 37 100.000.

. 610 1"0.6 433 100.9 12 1.0 220 10100 2S6 .0 68 100.0 104 100.6 19,81 '100.0 3,417 100.0 348 1 00.0 1,040 100.0 cltata , 5 4.81 129 1 156.2 6.9 t42 60 55 14.4 16 4.7 2.002 75.0 8.9 84 * .8 204 o.

Dta 145 39.5 160 24.7 42 10.9 38 17.8 641 20.9 77 2011 72 18.5 205 7.8 180 21.0 18 8.1 102 10. 44 11.5 Epftatioptera 48 15.1 110 16.4 107 49.5 131 6.6 9T 25.3 00 15.4 24 0.9 84 9.* 18 8.1 48 4.9 40 10A Ostv"Ofa 7 1.9 8 1.2 14 6.5 478 20.0 9 2.3 8 2.1 8 -03 38 4A4 20 9.0 50 5.1 00900I0918 61 15.9 0 0.0 112 10.7 3 1A 132 6.5 7 18 26 6.7 140 5.2 90 11.2 28 124 64 6.5 98 25.0 9oe 6 26.2 101 15.1 20 9.3 a0 3.6 42 11.0 12 3.1 92 3.4 06 7.9 40 18.0 484 49.5 50 13.0 a 0 0.0 0 0.0 0 0.0 12 0.6 0 0.0 0 0.0 8 0.3 4 0.5 0 0.0 0 0.0 0 0.0 TrtddxHetu 62 14.2 45 6.7 11 7.9 717 30.1 3 24.3 20 0.7 100 7.0 64 0.3 14 0.3 26 2.7 51 13.3 T~rbal,, 4 1.1 0 0.0 2 0.9 42 to0 ,?O.0 1.8 31 0.0 0 ;00.0 ;660 1s~0.00, Of00.0 0 0.0 2220 0O.00.0 9T3,0 . 0.0 '0 IMOO 0.0 1`6t11 267. 100.01 671 100.0. 216 10. IO Z373 104* 393 100.0 390- 10. .6 00.0 1 1 0. 222 10. 37 100.01 304 10.

1 27 . 4 230 3 083.? 16 40.4 4 52.0 28 7.2 D"-tara 271 31.3 815 68.9 198 38A.4 37 42.A 103 41.1 100 31.6 72 12.1 60 13.6 20 4.2 .44 5.4 63 13.0

'ptworooftro 15 1.7 42 3.0 53 10.3 126 14.0 107 24.0 84 19.0 46 7.7 82 19.7 26 5.5 30 3.7 15 at0Opd. 3.9 18 2.1 4 3.3 8 1.8 22 2.6 17 3A 2.4 26 4A 4 1.0 72 15.1 1 19.9 39 10.0 O1pchaae 7 0.8 48 3.5 0 0.030 3.310 2.226 73. 2 0.3 12. 2.9 0 0.036 4.428 7.2 00 46 6.2 290 21.0 32 0.2 32 3.6 18 4.0 16 4.8 92 15.4 70 10, 36 7A 70 8.0 102 Pl.cypods

• 40.8 0.9 1 0.1 0 0.028 3.1 0 0.0 0 0.0 4.0.7 0 0.0 0 0.0 4 0.8 1 0.3 Tc1opters 325 37.5 122 e.8 81 15.7 248 27.4 81 18.2 32 9.8 34 5.7 24 8.8 22 4.6 46 5.0 43 1.

Tuibeforls 148 17.1 6 0450 9720 22 2 0.4 0.0 n 81,383 01'fl1510 10.

10. 1 I 100.0 817 100.08 445 100.0 3360 0 100.0. _ 5981 100.01 0.0 0 0 100.0 47800.0 ., 0 0 0.0 381.100.00.0

. - 15 100*03209 1000*0 0.

('

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis Table 2-2. Summary of the results of a Kendall-Tan correlation analysis of time series trends in each benthic macroinvertebrate taxonomic grouping collected by rock basket sampling in the Connecticut River at Station 2 and Station 3 located downstream from Vernon Dam, 1996-2004.

Trend Kendall-Tau Taxa Station Direction coefficient p-value Significance Crustacca 2 Decreasing -0.056 0.835 Not Significant Diptera 2 Increasing 0.278 0.297 Not Significant Ephemeroptera 2 Increasing 0.278 0297 Not Significant Gastropoda 2. Increasing 0.444 0.095 Not Significant Oligochaeta 2 Decreasing -0.333 0.211 Not Significant Other 2 None 0.000 1.000 Not Significant Pelecypoda 2 Decreasing -0.327 0259 Not Significant Tricoptera 2 Increasing 0.500 -0.061 Not Significant Turbellaria 2 Increasing 0.523 0.065 Not Significant All Taxa 2 Increasing 0.333 0.211 Not Significant Crustacea 3 Decreasing -0.167 0.532 Not Significant Diptera 3 Increasing 0.167 0.532 Not Significant Ephemeroptera 3 Increasing 0.389 0.144 Not Significant Gastropoda 3 Decreasing -0.167 0.532 Not Significant Oligochaeta 3 Decreasing -0.085 0.753 Not Significant Other 3 Decreasing -0.389 0.144 Not Significant Pelecypoda 3 Increasing 0.261 0.357 Not Significant Tricoptera 3 None 0.000 1.000 Not Significant Turbellaria 3 Increasing 0.523 0.065 Not Significant All Taxa 3 Increasing 0.056 0.835 Not Significant Mgg¶-2004 VY NPOES Permit Reneww-FinaL.doc w2wo5 20 ivormandeauAssoclaiýs, Inc.

1991-2004 Vermont Yankee NPDES Permit Renewal Trend Analysis .

Figure 3-1. General and anadromous fish electrofishing sampling stations.

1-Q9I124 NPDES P ermft Renef.FlmaN.c 8W2W5 21 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PernitRenewal TrendAnalysis ;

Total Total A. Electrofishing, Lower Vernon Pool B. Electrofishing. Vernon Dam Tailrace ruioe Cofriient: 0.121 Kcndabl Tau Cmr, KenmjlI Tau C IflonCkncient: nl.121 p" 0.547 n- 14 n- 14 0

=3 100 B

<S50 < 25 il 92 93 ý4 95 9 i7 S 9 &0 01 02 3 d4 91 92 93 94 959697 98 99 0001 0203 04 YEAR YEAR Figure 3-2. Scatter plots comparing annual mean catch per hour of all fish species combined (Total) for general electraftshing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont..

1991-2004 VY NPDES Peryit Renewa-Fial.doc Mi2=/05 22 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis American shac American shac A. Electrofishing. Lower Vernon Pool B. Electrofishing. Vernon Dam Tailracc KendallI Tau Conclatin Ociridtknt- .U.65! Ken~dallTau Coffelation (iviricicni: -. 3.63 p~ 0.002 ozC ~1p0.0 1 0 8 10 a:~14 4

1~

A 4 04 C.)

0 C

£ 2

0 9 i2 93 94 95 6 i7 98 99 & 0l2 03 4 91 92 93 94 95 96 i7 94899 0 1d2 3 04 YEAR YEAR Figure 3.3 Scatter plots comparing American shad annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont.

American shau American shac A. Upstream & Not Exposed To Discharge B..Upstream & Exposed To Discharge Kendall 0 0 4Tau Comdadon Ccfcg -0.636 K*dlM Tau Cogrcoa Caoefient -0.489 pi . 0 p-n- 14 n- 0.024 24 V 10.

O=

0 0 0

• 0 *. 0 . 0 0 0 0 a ** 0

• 97 9S 99 00 01 02 03 04 i1 929394 9, 96 7 9 99001d 02030d4 YEAR YEAR Figure 3.4 Scatter plots comparing American shad annual mean catch per hour for general electrofishing during 1991 through 2004 at stations upstream (A) and downstream (B) from Vermont Yankee in Lower Vernon Pool of the Connecticut River near Vernon, Vermont.

1991-2004 VY NPDES Penit Renewal-FmM.doc *2*5 23 NormandeauAssociates, Inc..

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Spottail shinci Spottail shinet A. Ekectrofish ing. Lower Vernon Pool 13.Electrofishing. Vernon Dam Taxilracc Kenidall Tou Contlatkm Coirwlient: ANN20 hi (crn6nCoefflkmg: .6.14.%

Kend1l~d21I P. 0.298 100 p- 0.477 a-. 14 a- 14 40v- 6~0

.40 204:

• oj 92 93 94 95 96 97 9899 00 01 02 03 04 91 92 9394 95 96 97 999 00 01 02 03 04 YEAR YEAR Figure 3-5. Scatter plots comparing spottail shiner annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont.

1991-2004 VYNPDES PemAt Renewa~ff*.doC9¢2M052 24 NortnandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Smallmouth bas- Smallmouth bas.,

A. Electrofishing. Lour Vernon Pool B. Elecrofishing, Vernon Dam Talrace Io Kendall Tau COrrldaon Cioeffic: -0.187 Tau Correlation Coeffidcint: (1.319 K.en~dall pa 1J 11-p- 0.112 8

e4 4"

V.

02 0:

92 9'3 94 5 969'7999 00 h 0A20304 9199 4 95 9 97 98 99 00 01 02 03 04 YEAR YEAR Figure 3-6. Scatter plots comparing smallmouth bass annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, .Vermont.

Yellow perDu Yellow prct A. Electrofishing, Lower Vernoa Pool B. Electrofishing Vernon DarnTaitrace Kemdafl T-, Conrcluiao C .cfficie0.011 KealI Tmatadoa Coeffmat -o.253 100- p- 0.956 e. 50 p- 0.203 a-14 a- 14

• 0 40

, 30 go-5 . .. "."

20 0 , . .

S *

• 1 92 i3 94 95 6597 939 00 dl dz 03 0 il h2i3 94 9 96 7 98 9900 di 62 6304 YEAR YEAR Figure 3-7 Scatter plots comparing yellow perch annual mean catch per hour.for general electrofisbing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Darn Tailrace (B) of the Connecticut River near Vernon, Vermont.

1991-2004 VYNPDES PeMt Rerewai-Fnmadod 9/28/05 25 NormandeauAssociates,Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis Walleye Walleye A. Electrofishing, Lower Vernon Pool B. Electrofishing. Vernon Dam Tailrace 2.01 Ke.dal1 Tau Crcrlation CoefT;Ckw: -0.464 Ken&I Tai Cmrvadipa Cocfficexn*: -,.40I

-0.021 "14 A

,t 114 z0 4-

-0.6 OA.4 04 0.0, *. ° 0-91 92 i3 94 95 96 97 9 99 6D 01 *02 03 04 91 92 93 94 95 96 97 9 99 6D 1 &2 03 04 YEAR YEAR Figur e 3-8. Scatter'plots comparing walleye annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont.

1991.2004 VY NPOES Permit Renewal-F*.adoc 98/2,05 26 NormandeauAssocibies, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis "

Walleyc Wafleye A. Upstrem & Not Exposed To Discharge B. Upstream & Exposed To Discharge

.t end1I Tau Coalrlalion Cc*dkiea: -0.4.1 KedaIZ Tau Cowrdaton C'oefficien: A. 171 p- p.0.3,11 I np 01i n- 14 a* 8 S1.4 x &

0.04 U 4-C S0.6 U 2 0 .

.~0. 5 0.0 . 0- S

• S 92 i3 4 5 96 i 9' o d', d334 9ý1 i2 93 94 9 i7 98 9 0o 01 02 03 04 YEAR MER Walleye Wafleye C. Immediately Downstrem D. In Recovery Zone Kaxda11 Tau Cofongaos Coeffidck -0.407 KCm&H TaMConvlaioa CoefficaW .0.467 10~~p- 0.04 3 10 p- 0.029 11 14 r-14 6ý o

621 4-C C

0 . a0

. 0 0

• 0 9,2.i3 94 is 96 97is9900010 20d30d4 91 929394 956 97 98 99 OD 0 02 0304 YEAR YEAR Figure 3-9. Scatter plots comparing walleye annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool at locations upstream (A) and downstream (B) from Vermont Yankee, and in the Vernon Dam Tailrace near the dam (C) or further downriver in a recovery zone (D) of the Connecticut River near Vernon, Vermont.

1991-2004 VY NPDES Peamit RenewaI-FinaI.doc 928052d 27 NormnandeauAssocikes, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis "

Largernouth bas! Largemouth bas.

A. Electrorasing. Lowecr Vernion Pool B. Electrofishing. Vernon Dam Tailrace 9Knvdaf Cecicam: -.

Tau Condcoa tion Kendall Tim Cofbclvkm Ci.'fficient: .0._21 p, 0.05$ 101 pg,027*

-R4D in!

n: 14 6:

T 36 4-2-

0:

911 9 2 63 9491591691799 91900 0'10'20'3 04 19 2963i945969798 9 000ý1 02063 04 YEAR YEAR Figure 3-10. Scatter plots comparing largeinouth bass annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont.

Fallfish Falibs A. ElectrotfWig. Lower Ver'on Pool B. Electrofisbing, Vernbzi Darn Tajirace K-A-H Tau CcmLWdCacdckw. .0398 Kendafl To CcgvWmao Cod~efdat -0.044 p- 0.26 l04 v- 14 a14

,c40

• .0.9 o30

~04i 820g to 30.21 0.0; 0 0 0 a

• S** 0 0

• 9 0.

91 92 93 94 95 96 97 98 99 0001 02 03 04 91 92939495969798 99 0001 0 03 04 YEAR YEAR Figure 3-11. Scatter plots comparing failfish annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont.

1991-2004 VY NPDES Pdnf Renea al-FNAl.oc W2=5 28 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis -

White suckeo .White suckei A. Electrofishing, Lower Vernon Pool B. Electrofishing. Vernon Dam Tailrace Kendall Tau Correlation Cmcffint: -0.-148 Kecndall Tau Co~rrelation Coe~fficient: .0.649 p, 0.001 n t

214 S0~ A 40 N 34 30i 20 3oý:

S S S 9 9i2 93 94 9s 9 9'7 9'8 99 00 01 0'2 03 04 911 9.2 913 914 9.5 916 97 98900 01 02 0304 YEAR YEAR Figure 3-12. Scatter plots comparing white sucker annual mean catch per hour for general.

electrofishing during 1991 through 2004 in Lower Vernon Pool (A) and the Vernon Dam Tailrace (B) of the Connecticut River near Vernon, Vermont.

1991-2004 VY NPDES Permit Renewaihal.doc 9/22MA 29 NormandeauAssoclat6s, c Im

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis .

White suckei White suckei A. Upstream & Not Exposed To Discharge B. Upstream & Exposed To Discharge Kc*lelI Tau CrrmltioiaCoeffcicni: -6.626

p. 0).001 S*ol p. 0.00 tTmu Caorrdai*n Cocf&cn-: -A)h4 Kwsdll n1l4 p502 0 I0 ". .

U 20O 0

• 0 a

• . ..m . . . . . . . . . . .

92 93 94 9S 96 97 i8 99 00 0l 02 03 04 il 429i39494596979489900 0ý&d2630d4 YEAR YEAR White sucket White sucket C. New Hampshire Side of Discharge D. Vermont Side of Dischauge KendaNl 0 00 4Tau Corrdatio Coeffiden: -0.589 KXadl Tam Corr*eation Coeffc"t -0.-M03 p- . P-0.015 1-4 a- 14

~30- 440 r32o I.

.~10:

. a a 91 992 994 5 96i7 98 61 02 03 04 9 0'0 d1 d20304 YEAR YEAR White s'cke: White suckei E. Immediately Downstream F. In Recovery Zone KMdW TOO Cmdabs OCE*,:ic -0.63US KMdTauTm Cabod Cacffiiwtc -0.326 so p- 0.O0 p-0.110 a- 14 14 10 4~0*

i, 0-91 92 93 94 95 96 97 98 99 00 01 02 03 04 91 92 93 94 95 96 97 98 99 00 01 02 03.04 YEAR YEAR Figure 3-13. Scatter plots comparing white sucker annual mean catch per hour for general electrofishing during 1991 through 2004 in Lower Vernon Pool at locations upstream (A) and downstream (B) from Vermont Yankee, in Vernon Pool but on the New Hampshire (C) or Vermont (D) sides, and in the Vernon Dam Tailrace near the dam (E) or fubiter downriver in a recovery zone (F) of the Connecticut River near Vernon, Vermont.

1991-2004 VY NPDES PirnM Ree*WAFin.doc Ssas 30 NornandeauAssociat *eInc.*

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Table 3-1. Summary of the Number and Percent ofFish Species Collected by General Electrofishing Upstream of Vernon Dam, from 1991 through 20041.

1 993 1994 19951 1996 Species Spcis INN1 I 1992 I N % N %I American eel 7 0.5 2 0.2 8 0.8 4 0.4 2 02 0 0.0 American shad 19 1.3 29 3.3 5 0.5 2 '0.2 24 . 2.4 3 0.3 Atlantic salmon 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Baided killifish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Black crappie 0 0.0 0 0.0 0 .0.0 0 0.0 0 0.0 5 0A Blueback herring 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Bluegill 128 9.0 56 6A 99 10.5 118 11.5 135 13.7 222 19.8 Brook trout 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Brown bullhead 19 1.3 19 2.2 29 3.1 8 0.8 20 2.0 1 0.1 Chain pickerel 17 1.2 29 3.3 5 0.5 4 0A 5 0.5 12 1.1 Common carp 11 0.8 6 0.7 8 0.8 7 0.7 11 1.1 2 0.2 Common shiner 0 . 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 E. silyery minnow 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Fallfish 1 0.1 0 0.0 0 0.0 0 0.0 1 0.1 0 0.0 izzard shad 0 0.0 0 0.0 0 0.0 0 0.0 i 0.1 0 0.0 Golden shiner 74 5.2 70 8.0 16 1.7 41 4.0 46 4.7 39 3.5 Goldfish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Largemouth bass 151 10.6 83 9.5 99 10.5 58 5.7" '69 7.0 44 3.9 Lepomis sp. 0 0.0 1 0.1 1 0.1 12 1.2 49 5.0 0 0.0 Mimic shiner 6 0.4 0 0.0 0 0.0 17 1.7 5 0.5 0 0.0 Northern pike 7 0.5 11 1.3 6 0.6 2 0.2 6 0.6 4 0.4 Notopis sp. 0 0.0 1 0.1 0 0.0 0 0.0 0 0.0 0 0.0 PIupkinseed 157 11.0 94 10.8 144 15.2 97 9.5 68 6.9 109 9.7 Redbreast sunfish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 RDk bass 37 2.6 26 3.0 10 1.1 5 0.5 18 1.8 41 3.7 Sea lamprey 2 0.1 0 0.0 1 0.1 0 0.0 0 0.0 1 0.1 11 1.1 22 2.2 12 1.1 Smallmouth bass 15 1.1 10 1.1 18 1.9 Spotfm shiner 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Spottail shiner 104 7.3 73 8.4 46 4.9 85 8.3 23 2.3 249 22.2 Tessellateddarter 2 0.1 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Walleye is 1.1 1 0.1 12 1.3 12 1.2 13 1.3 6 0.5 White perch 19 1.3 11 1.3 7 0.7 34 3.3 18 1.8 0 0.0 White sucker 121 8.5 86 9.9 75 7.9 108 10.6 73 7.4 22 2.0 Yellow bullhead 5 0.4 4 0.5 5 0.5 4 0.4 7 0.7 2 0.2 Yellow perch 507 35.6 260 29.8 352 37.2 394 38.5 373 37.7 346 30.9 0 0.0 0 0.0 0 0.0 0 0.0 (o o o o nO Unidentifiable Total Number 1424 100 872 100 946 100 1023 100 989 100 1120. 100 No. Collections 24 24 24 24 24 "20 Effort (Hrs) 7.8 8.1 7.9 6.5 8.2 3.5 No. FishlHr. (CPUE) 182.6 107.7 119.7 157.4 120.6 320.0 (continued)

'Data from 1991-2004 were obtained by transcription from annual reports.

2 CPUE is catch per unit of effort expressed as fish per hour.

1991-2004 VY NPDES Permit Renewa3-maW.doc 928J1M5 31 NotrnandeauAssoclatels, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal TrendAnalysis Table 3-1 (Upstream Continued)

.1997 1 198 1999 2000 2001 2002 Species N  % N  % N %I N  % N "% N  %

American eel 0 0.0 2 0.2 1 0.1 0 0.0 0 0.0 0 0.0 American shad 0 0.0 0 0.0 0 0.0 1 0.1 0 0.0 0 0.0 tlantic salmon 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Banded killifish 0 0.0 0 0.0 0 0.0 1 0.1 4 0.3 0 0.0 Black crappie 3 0.5 7 0.8 10 1.2 12 1.5 9 0.7 4 .0.7 3lueback herring 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Bluegill 46 7.2 234 25.8 296 35.2 221 28.4 360 27.8 197 34.1 Brook trout 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Brown bullhead 2 0.3 2 0.2 0 0.0 3 0.4 2 0.2 0 0.0 Chain pickerel 14 2.2 20 2.2 9 - 1.1 12 1.5 11 0.8 5 0.9 Common carp 1 0.2 2 0.2 3 0.4 2 0.3 0 0.0 1 0.2 Common shiner 0 0.0 0 0.0 1 0.1 0 0.0 0 0.0 0 0.0 E. silvery minnow 0 0.0 0 0.0 9 1.1 5 0.6 0 0.0 2' 0.3 Fallfish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Gizzardshad 0 0.0 0 0.0 0 0.0 0. 0.0 0 0.0 0 0.0 Golden shiner 15 2A 74 8.1 66 7.8 24 3.1 55 4.2 29 5.0 Goldfish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Largemouth bass 30 4.7 31 3A .43 5.1 47 6.0 91 7.0 31 5A Lepomissp. 0 0.0 0 0.0 0 0.0 0 0.0. 0 0.0 0 0.0 Mimic shiner 0 0.0 0 0.0 0 0.0 0

• 0.0 0 0.0 0 0.0 Northern pike 0 0.0 0 0.0 0 0.0 4 0.5 1 0.1 1 0.2 Notropissp. 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Pumpkinseed 11 1.7 71 7.8 23 2.7 70 9.0 104 8.0 81 14.0 Redbreast sunfish 1 0.2 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Rock bass 9 1.4 17 1.9 18 2.1 24 3.1 21- 1.6 5 0.9 Sea lamprey 9 1.4 5 0.6 4 0.5 1 0.1 4 0.3 0 0.0 Smallmouth bass 7 1.1 26 2.9 21 2.5 10 1.3 2 0.2 6 1.0 Spotfinshiner 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 .0.0 Spottail shiner 146 22.9 39 4.3 76 9.0 50 6.4 141 10.9 17 2.9 Tessellated darter 0 0.0 2 02 0 0.0 0 0.0 4 0.3 1 0.2 Walleye 7 1.1 6 0.7 3 0.4 2 0.3 7 0.5 2 0.3 White perch 1 0.2 0 0.0 1 0.1 0 0.0 0 0.0 3 0.5 Whit sucker 11 1.7 8 0.9 13 1.5 11 1.4 21 1.6 18 3.1 Yellow bullhead 0 0.0 2 0.2 4 0.5 7 0.9 5 0.4 0 0.0 Yellow perch 324 50.9 360 39.6 240 28.5 272 34.9 454 35.0 175 30.3 Unidentifiable 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Total Number 637 100 908 100 841 100 779 100 1296 100 578 100 No. Collections 24 24 24 24 24 24 Effort (Hrs) 4.0 4.3 4.0 3.9 4.0

• 4.0 No. Fish/Br. (CPUE)2 159.3 211.2 210.3 199.7 324.0 144.5 (continued) 3 Data from 1991-2004 were obtained by hnscription from annual reports.

2 CpLjE is catch per unit of effort exprce as fish per hour.

1991-2004 VY NPDES Pemrin Renewal-FWMaLdoC 9W28/05 "32 NOrmandeauAssoc'iates,Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Table 3-1 (Upstream Continued) 2003 _ 2004 All Years Species I N  % N O"/i N %;CPUE erican eel 0 0.0 1 0.2 .27 02 0.4 American shad 0 0.0 0 0.0 83 0.7 1.1 Atlantic salmon 0 0.0 0 0.0 0 0.0 0.0 Banded killifish 0 0.0 0 0.0 5 0.0 0.1 lack crappie" 13 2.0 9 1.9 72 0.6 1.0 Blueback herring 0 0.0 0 0.0 0 0.0 0.0 Bluegill 202 31.8 123 26.6 2437 19.5 32.8 Brook trout 0 0.0 0 0.0 0 0.0 0.0 Brbwn bullhead 3 0.5 1 0.2 109 0.9 1.5 Chain pickerel 8 1.3 2 0.4 153 1.2 2.1 Common carp 0 0.0 4 0.9 58 0.5 0.8 Common shiner 1 0.2 0 0.0 2 0.0 0.0 E. silvery minnow 0 0.0 0 0.0 16 0.1 0.2 Fallfish 0 0.0 0 0.0 2 0.0 0.0 izzard shad 0 0.0 0 0.0 1 0.0 0.0 Golden shiner 19 3.0 27 5.8 595 4.8 8.0 Goldfish 0 0.0 0 0.0 0 0.0 0.0 Largemouth bass 27 4.2 33 7.1 837 6.7 11.3 pomis sp. 11 1.7 0 0.0 74 0.6 1.0 Mimic shiner 0 0.0 0 0.0 28 0.2 0A Northern pike 0 0.0 0 0.0 42 0.3 0.6 Notropis sp. 0 0.0 0. 0.0 1 0.0 0.0 Pumpkineed 75 11.8 48 10.4 1152 9.2 15.5 Redbreast sunfish 0 0.0 0 0.0 1 0.0 0.0 Rock bass 9 1.4 3 0.6 243 1.9 3.3 4 0.6 0 0.0 31 0.2 0.4 Sea lamprey Smallmouth bass 5 0.8 0 0.0 165 1.3 22 Spotfin shiner 0 0.0 0 0.0 0 0.0 0.0 Spottail shiner 18 2.8 6 1.3 1073 8.6 14.5 Tessellated darter 0 0.0 2 0.4 11 0.1 0.1 Walleye o o.o 0 0.0 86 0.7 1.2 White perch 2 0.3 0 0.0 96 0.8 1.3 White sucker 8 1.3 4 0.9 579- 4.6 7.8 Yellow bullhead 3 0.5 4 0.9 52 0.4 0.7 Yellow perch 228 35.8 194 41.9 4479* 35.8 60A Unidentifiable - 0 0.0 2 0.4 2 0.0 0.0 rotxt Number 636 100 463 100 12512 100 168.6 No. Collections 24. 24 332 Effort (Hrs) 4.0 4.0 742 No. Fish/Hr. (CPUE)2 158.3 115.7 168.6 2

1Data from 1991-2004 were obtained by transcription from annual reports.

CPUE is catch per unit ofteffort expressed as fish Per hour.

19g1-2004 VY NPDES Permit Rer*AlI-F'na~doc 82O5 33 NormandeauAssociates, Inc.

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis ":

Table 3-2. Summary of the Number and Percent of Fish Species Collected by General Electrofishing Downstream of Vernon Dam, from 1991 through 20041.

1 1991 1 1992 1993 1 1994 1 1995 1996 Species I N  % IN , N .% N N %1 N N  %

American eel 13 2.0 1 0.2 10 2A 7 1.6 1 0.3 I 0.2 American shad 166 25.6 37 9.2 82 19.9 43 9.6 59 15.6 10 2.4 4tlantic salmon 0 0.0 0 0.0 0 0.0 0 0.0 1 0.3 0 0.0 Banded killifish 0 0.0 0 0.0 0 0.0 0 "0.0 0 0.0 0 0.0 Black crappie 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Blueback herring 0 0.0 2 0.5 0 0.0 0 0.0 0 0.0 0 0.0 Bluegill 8 1.2 12 3.0. 15 3.6 28 6.3 25" 6.6 37 8.8 Brook trout 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Brown bullhead 1 0.2 1 0.2 2 0.5 0 0.0 5 1.3 0 0.0 Chain pickerel 3 0.5 6 1.5 4 1.0 2 0A 0 0.0 3 0.7 Common carp 3 0.5 1 0.2 3 0.7 4 0.9 7 1.8 4 1.0

ýommon shiner 0. 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 E. silvery minnow 0 0.0 0 0.0 0 0.0 0 0.0 6 1.6 0 0.0 Falfish 49 7.6 22 5.5 11 2.7 27 6.1 9 2.4 6 1.4 Gizzard shad 0 0.0 0 0.0 0 0.0 0 0.0 1 0.3 2 0.5 Golden shiner" 5 0.8 2 0.5 4 1.0 4 0.9 0 0.0 14 3.3 Goldfish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 1 0.2 Imgemouth bass 8 1.2 5 1.2 15 3.6 3 0.7 8 2.1 3 0.7 Lepomis sp. 6 0.9 0 0.0 1 02 0. 0.0 0 0.0 0 0.0 Mimic shiner 15 2.3 0 0.0 4 1.0 6 1.3 1 0.3 0 0.0 Northernpike 2 0.3 7 1.7 0 0.0 6 1.3 10 2.6 3 0.7 otropis sp. 0 0.0 0 0.0 0 0.0 8 1.8 2 0.5 0 0.0 Pumpnseed 11 1.7 3 0.7 3 0.7 4 0.9 4 1.1 5 12 edbreast sunfish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Rock bass 30 4.6 25 6.2 22 5.3 37 8.3 47 12.4 37 8.8 Lea lamprey 0 0.0 1 0.2 3 0.7 0 0.0 0 0.0 7 1L7 mallmouth bass 101 15.6 85 21.2 99 24.0 1 109 24.4 118 31.1 73 17.3 Spotfin shiner 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 pottail shiner 107 16.5 104 25.9 49 11.9 60 13.5 27 7.1 171 40.6 lesated darter 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Walleye 18 2.8 13 3.2 16 3.9 9 2.0 9 2.4 5 1.2 perch 1 0.2 1 0.2 8 1.9 0 0.0 2 0.5 0 0.0 White sucker 73 11.3 62 15.5 40 9.7 71 15.9 30 .7.9 18 43 Yellow bullhead 0 0.0 0 0.0 0 0.0 0 0.0 I 0.3 0 0.0 Yellow perch 28 4.3 I1 2.7 21 5.1 lg 4.0 6 1t 21 S.0 Total Number 648 100.1 401 99.5 412 99.8 446 99.9 379 100.1 421 100.0 No. Collections 20 20 20 20 20

• 16 Effort (irs) j 5.6 5.9 5.7 5.7 6.2 3.1 No. Fish/Hr.(CPUE9 115.7 68.0, 72.3 78.2 61.1 135.8 (continued)

'Data from 1991-2004 were obtained by transcription from annual reports.

2CPUIE is catch per unit of effort expressed as fish per hour.

191-2004 VY NPDES Permit ReihewaI-Fna.doc 9/28/O5 34 NormandeauAssociates, Inc.-

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis S Table 3-2. (Downstream Continued) 1997 1998 - 1999 1 2000 2001 2002 Species . .% N %I N %IN  % N %I N  %

American eel I OA 3 0.8 0 0.0 2 1.0 0 0.0 2 0.9 erican shad 39 16.2 12 3.3 1 0.2 12 6.0 34 7.3 21 9.8 Atlantic salmon 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Banded killifish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 2 0.9 Black crappie 0 0.0 3 0.8 0 0.0 0 0.0 1 02 3 1A Blueback herring 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 luegill 5 2.1 28 7.7 12 2.6 23 11.4 41 8.8 22 10.2 rook trout 0 0U0 0 0.0 0 0.0 0 0.0 0 0.0 1 0.5 rown bullhead 0 0.0 0 0.0 2 0.4 0. 0.0 0 0.0 0 0.0 rhain pickerel 3 1.2 0 0.0 0 0.0 1 0.5 1 02 0 0.0 mmon carp .0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 rommon shiner 0 0.0 0 0.0 21 4.6 1 0.5 1 02 0 0.0 Esilvery minnow 0 :0.0 5 1.4 0 0.0. 0 0.0 0 0.0 2 0.9 alIfish 0 0.0 25 6.8 86 19.0 26 12.9 24 5.2 13 6.0 izzard shad 0 0.0 0 0.0 1 0.2 1 0.5 0 0.0 0 0.0 olden shiner 4 1.7 4 1.1 10 2.2 3 1.5 1 0.2 1 0.5 1oldfish 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 gemouth bass 5 .2.1 3 0.8 5 1.1 0 0.0 8 1.7 1 0.5 X.epomis sp. 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0. 0 0.0 Mimic shiner 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Northern pike 1 0.4 0 0.0 0 0.0 0 .0.0 I1 0.2 0 0.0 otropis sp. 0 0.0 0 0.0 0 0.0 2 1.0. 95 1.9 .0 0.0 10 2.7 5 1.1 10 5.0 1.1 10 4.7 Pumpkinseed 3 1.2 Redbreast sunfish 0 0.0 1 0.3 0 0.0 0 0.0 0 0.0 0 0.0 Rockbass 6 2.5 43 11.8 38 8.4 13 6.5 60 12.9 13 6.0 0 0.0 6 1.6 3 0.7 0 0.0 3 0.6 2 0.9 mallmouth bass 72 29.9 141 38.6 127 28.0 42 20.9 197 42.5 71 33.0 potfin shiner 0 0.0 1 0.3 0 0.0 0 0.0 0 0.0 0 0.0 potail shiner 64 26.6 37 10.1 65 14.3 51 25.4 48 10.3 40 18.6 Ie'ssellated darter 0 0.0 1 0.3 0 0.0 0 0.0 .0 0.0 0 0.0 Walleye 2 0.8 5 1.4 12 2.6 6 3.0 3 0.6 4 1.9 White perch 1 0.4 0 0.0 0 0.0 0 0.0 1 0.2 0 0.0 White sucker 7 2.9 17 4.7 20 4.4 6- 3.0 11 2.4 6 2.8 Yellow bullhead 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 Yellow verch 28 11!.6 20 5.51 45 9.91 2 IAI IS 3.2 1 0.5 rotal Number 241 100.0 365 100.0 453 99.7 201 100.1 464 99.7 215 100.0 No. Collections 16 16 16 16 16 16 Effort (Hrs) 2.7 2.7 2.7 2.6 2.7 2.7 0o.Fish/Hr.(CPUE) 2 j 89.3 135.2 167.8 77.3 171.9 " 79.6 (continued)

'Data from 1991-2004 were obtained by transcription from annual reports.

2 CPUE is catch per unit ofeffort expressed as fiih per hour.

kQ.

1991-2004 VY NPES Permit Re ewW-FinaLdoc Vt2S3o 35 NormandeauAssocite's, Inci

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Table 3-2. (Downstream Continued 2003 2004 All Years Species I N  %. N  % N  % CPUE2 American eel 0 0.0 0 0.0 41 0.8 0.8 American shad 15 -6.8 19 11.6 550 10.9 10.2

)tanticsalmon 0 0.0 0 0.0 1 0.0 0.0 Banded killifish 0 0.0 0 0.0 2 0.0 0.0 Black crappie 1 0.5 1 0.6 9 .0.2 0.2 Blueback herring 0 0.0 0 0.0 2 0.0 0.0 Bluegill 42 18.9 12 7.3 310 6-2 5.8 Brook trout 0 0.0 0 0.0 1 0.0 0.0 Brown bullhead 0 0.0 0 0.0 11 0.2 0.2 Chain pickerel 2 0.9 0 0.0 25 0.5 0.5 Common carp 2 0.9 0 0.0 24 0.5 0.4 oommon shiner 1 0.5 0 0.0 24 0.5 0.4 E. silvery minnow 0 0,0 0 0.0 13 0.3 0.2 Fallfish 6 2.7 8 4.9 312 6.2 5.8 Gizzard shad 0 0.0 0 0.0 5 0.1 0.1 Golden shiner 0 0.0 0 0o0 52 1.0 1.0 oldfish 0 0.0 0 0.0 1 0.0 0.0 Largemouth bass 2 0.9 7 4.3 73 1.5 1.4 Lepomis sp. 0 0.0 0 0.0 7 0.1 0.1 Mimic shiner 0 0.0 0 0.0 26 0.5 0.5 Northern pike 0 0.0 0 0.0 30 0.6 0.6 Notropis sp. 0 0.0 0 0.0 21 0.4 0.4 Pumpkinseed 5 2.3 2 1.2 80 1.6 1.5 Redbreast sunfish 0 0.0 0 0.0 1 0.0 0.0 Rk bass 18 8.1 30 18.3 419 8.3 7.8 Slamprey 1 0.5 1 0.6 27 0.5 0.5 Smalimouth bass 84 37.8 48 29.3 1367 27.2 "25S5 potfin shiner 0 0.0 0 0.0 1 0.0 0.0 Spottail shiner 31 14.0 26 15.9 880 17.5 16.4 tessellated darter 1 0.5 0 0.0 2 0.0 0.0 Walleye 1 0.5 0 0.0 103 2.0 1.9 White perch 1 0.5 0 0.0 15 0.3 0.3 White sucker 7 3.2 5 3.0 373 7.4 6.9 Yellow bullhead 0 0.0 0 0.0 I 0.0 0.0 Yellow perch 2 0.9 5 3.0 223 4.4- 4.2 total Number 222 100.4 164 100.0 032 100.0 93.7 No. Collections 16 16 244 Effort (Hrs) 2.7 2.7 53.7 No. Fish/Hr.(CPUE)2 83.3 61.5 93.7 1Data from 1991-2004 were obtained by transcription from annual reports.

2 CPUE is catch per unit of effort expressed as fish per hour.

36 NVoIrTandeau Associates, Inc.;

1991-2004 VY NPDES Permit RenewaI-Fmal doc 0/253nc

1991-2004 Vermont Yankee NPDES PermitRenewal Trend Analysis Table 3-3. Summary of the results of a Kendall-Tau correlation analysis of time series trends in each of the nine Representative Important Species (RIS) of fish and for all fish species combined (Total) collected by general electrofishing in the Connecticut River at permit-required Stations located upstream and downstream from Vernon Dam, 1991-2004.

Trend Kendall-Tau RIS Location Direction coefficient ip-value Significance American Shad Upstream Decreasing -0.652 0.002 Significant Atlantic Salmon Upstream None N/A N/A NIA Spottail Shiner Upstream Decreasing -0.209 0.298 Not Significant Smallmouth Bass Upstream Decreasing -0.187 0.352 Not Significant Yellow Perch Upstream Decreasing -0.011 0.956 Not Significant Walleye Upstream Decreasing -0.464 0.021 Significant Largemouth Bass Upstream Decreasing -0.385 0.055. Not Significant Fallfish Upstream Decreasing -0.398 0.094 Not Significant White Sucker Upstream Decreasing -0.648 0.001

• Significant Total Upstream Increasing 0.121 0.547 Not Significant American Shad Downstream Decreasing -0.363 0.071 Not Significant.

Atlantic Salmon Downstream None N/A N/A N/A Spottail Shiner Downstream Decreasing -0.143 0.477 Not Significant Smallmouth Bass Downstream Increasing 0.319 0.112 Not Significant Yellow Perch Downstream Decreasing -0.253 0208 Not Significant Walleye Downstream Decreasing -0.451 0.025 Significant Largemouth Bass Downstream Decreasing -0.221 0.273 Not Significant Fallfish Downstream Decreasing -0.044 0.826 Not Significant White Sucker Downstream Decreasing -0.648 0.001 Significant Total Downstream Ineretsing 0.121 0.547 Not Significant g991-2004 VY NPOES Pemit Renew-FhsaLdoc 53c 37 NormandeauAssoclat'e's, Inc..

Attachment E J'

All flows x 10' GOaDay (MGD)

NOTE~ Severs "U" hybleld1d cycle cool~vmod aes am id"Ud RW In Whs

&UMMn,. In htly "'le, "N001 ow" "d ee cwnmt wi Vacy between (o) Open Cycle (1) intermittent Flow (as needed) *Mexfy hall open Wycle to nerdy lull lsd cre U#%- the **ret (c) Closed Cycle (2) Seasonal Flow, (3) Based on a 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> day oe f n of Vales and pumpe.

Schematic of Design Maximum Capacity Water Flow Revised October2005

) )

)

SxNOTE All flows x 106 GalIDay (MGD) Several pjio bywbId cycle cooling ansodes am noLt lcated" In this diagam In hybId cycle, Si 001 flows and heat o*nite wig Vrwnabwen (o) Open Cycle (1) lntennittert FlBow (as needed) r~uly No " cycleW zdyfuld cycleUtwoughWe 501-tow (c) Closed Cycle (2) Seasonal Flow, (3) Based on a 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> day aperalo01 on &W adwpa Schematic of Design Maximum Capacity Water Flow - RHRSW (SNO05) removed Revised Octob er2005

) ) 3