SEntergyEntergy Nuclear Generation Company Pilgrim Nuclear Power Station 600 RocKy Hill Road Plymouth, MA 02360

J. F. Alexander Director Nuclear Assessment

ENV 1.00.005 March 16, 2000

Water Technical Unit (SEW) U.S. Environmental Protection Agency P.O. Box 8127 Boston, MA 02114-8127

Massachusetts Dept. of Environmental Protection Southeast Regional Office 20 Riverside Drive Lakeville, MA 02347

Discharge Monitoring Report

Dear Sirs:

Enclosed is the Discharge Monitoring Report for Pilgrim Nuclear Power Station (PNPS), NPDES permit number MA0003557 (Federal) and number 359 (State).

The period covered by this report is February 2000.

Should you have any questions on this report, please direct them to our Principal Marine Biologist, Mr. Robert Anderson, at (508) 830-7935.

Sincerely,

RDA/vc

Attachments: 1. Summary 2. Discharge Monitoring Report

cc: U. S. Nuclear Regulatory Commission Senior NRC Resident Inspector Document Control Desk Washington, DC 20555

U. S. Nuclear Regulatory Commission 475 Allendale Road Region I King of Prussia, PA 19406

Senior Resident Inspector Pilgrim Nuclear Power Station

500006

ATTACHMENT 1 TO ENV LETTER 1.00-005

SUMMARY

PILGRIM I DISCHARGE MONITORING REPORT

In accordance with the Federal Clean Water Act, as amended (33USC 1251 et seg: the "CWA"), and the Massachusetts Clean Water Act, as amended (M.G.L.; Chap. 21, 26-53), regarding effluent limitations, monitoring requirements and other conditions set forth in the Pilgrim NPDES permit (Federal Permit Number MA0003557, and State Permit Number 359), Parts I and II, the following information is submitted for the period February 2000.

Dischargqe Points Covered in this Report

Discharge Point Discharge Identification

001 Condenser Cooling Water

002 Thermal Backwash for Biofouling Control

003 Intake Screen Wash

004, 005, 006, and 007 Yard Drains (April and September)

008 Sea Foam Suppression

010 Service Cooling Water

011 Makeup Water and Demineralizer Waste Discharge

II. Summary and Notes of Discharge Report

A. The flows at points 001 and 010 are calculated from system pump capacity and are equal to the total for all pumps in each system running at full capacity for a 24-hour period. The flow at 011 is measured by noting sump levels before and after discharge. Flow at point 002 is a conservative figure obtained by calculating flow if backwashing took place for 24 hours. Flows at points 003 and 008 are calculated from system pump capacity and mean operating time.

B. The temperatures at points 001 and 002 are measured by resistance temperature detectors (RTD's).

C. Periodically, total residual chlorine (TRC) concentration in the service cooling water (010) exceeds permit requirements (0.50 ppm daily average TRC and 1.00 ppm daily maximum TRC) prior to mixing with any other stream, primarily because of the number of service water pumps in operation. Chlorine injection levels are lowered as a corrective measure. The dilution provided by the PNPS circulating water flow keeps total residual chlorine concentrations discharged to Cape Cod Bay below the NPDES permit limit of 0.1 ppm.

D. For stormwater outfalls 004, 005, 006 and 007, samples are collected by grab sampling.Samples are handled and stored in accordance with 40 CFR 136. No additional inputs to these stormwater outfalls occur downstream of the sampling locations.

500006

E. Intake traveling water screens were operated without dechlorination pumps on one occasion in February. On February 2, 2000, a dechlorination pump did not operate for a period of time due to an equipment problem which has since been identified. An inspection of the intake area revealed no environmental effects.

F. No sawdust was applied to seek and seal PNPS condenser leaks in February 2000.

G. Boron and sodium nitrite discharges (ppm) did not occur in February 2000 from discharge point #001.

Date Discharged

Gallons Discharged

Concentration Before Discharge

Concentration Discharged

Boron

None

Sodium Nitrite

None

500006

ATTACHMENT 2 to ENV LETTER 1.00-005

DISCHARGE MONITORING REPORT

500006

PERMITTEE NAIME/ADDRESS (Inchide Facility Nomn Location (f Diffiertnt)"rMmc

ADDRESS

FACILITY

LOCATION

ATTN:

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPOES) DISCHARGE MONITORING REPORT (DMR)

PERMTNNMBER DICARGE NME

Form Approved. rIAR Kr. ')nAn~tnAA4

IMAJORAprvl.eie (SUER S )Aprvlepe F -,, FINAL

s05-31-98ENTERGY NUCLEAR GENERATIOM CO PILGRIM NUCLEAR POWER STATION 60C FOCKY HILL EOAD PIYMOUTH IMA 02360 PILGRIMI NUCLEAR POWER STATION PLYMOUTH MA 02360 WILLIAM J. DiCEOCEPARAMETER (3 Card,4Only) QUANTITY OR LOADING (4 Card Only) 'QUANTITY OR CONCENTRATION

(6_63) (64-611 (36-45) (46-53) (64-61) , NO. FrE-UNC SAMPLE (32-37) EXAAYI TYPE

AVERAGE MAXIMUM rUNITS MINIMUM- AVERAGE:. MAXIMUM ýUNITS, (62.63! .,(64-68) (69- 70)

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PERMITTEE NAME/ADDRESS (Include FacdItyMNmo/Locatlon ifDiffrnt) NAME ENTEEGY NUCLEAR GENERATION CO

ADDRESS PILGRIM NUCLEAR POWER STATION 600 ROCKY HILL ROAD PLYMOUTH MA 02360

FACILITY EILGE1Ii NUCLEAR POWER STATION LOCATION PLYMOUTH MA 02360 .ATTN: WILLIAM J. DICEOCE

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPOESJ DISCHARGE MONITORING REPORT (DMR)

(2-16) (17-19)

'PERMIT NUMBER DISCHARGE NUMBER

MONITORING PERIOD i

MAJOR "(SUER S ) F - FINAL THERMAL BACKWASH

Form Approved. OMB No. 2040-0004 Approval expires 05-31-98

SYEAR MO I DAY I I YEARI MO DAY FROMI VU Z t TO I UZI IV NO DISCHARGE t I

*(20-21) (22-23) (24-25) (26-27) (28-29) (30-31) NOTE: Read Instructions before completing this form.

PARAMETER (3 Card Only) QUANTITY OR LOADING (4 Card Only) QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLE (46-53) (54-61) : (38-45) (46-53) (54-61) " • 'OF (32-37) EX ANALYSS TYPE

AVERAGE MAXIMUM UNITS MINIMUM AVERAGE MAXIMUM UNITS' (62.6,1 (64-68) (69-70)

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AM FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN; AND BASED ON MY INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR

OBTAINING THE INFORMATION, I BELIEVE THE SUBMITTED INFORMATION IS TRUE, ACCURATE AND COMPLETE. I AM AWARE THAT THERE ARE SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBILITY OF FINE AND IMPRISONMENT. SEE 18 U.S.C. 1001 AND 33 U.S.C. 5 1319. (Peneldes under thdw statutes may Include fine& up to $10,000 81 RE.OF PRINCIPAL EXECUTIVE TYPED OR PRINTED ador. npsonamnt ,be•twen 6monthsand5 yearm) MFICER OR AUTHORIZED AGENT AREA NUMBER YEAR MO DAY TYPE ORPRITED F IrCUCODE

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(REPLACES EPA FORM T-40 WHICH MAY NOT BE USED.) 00014/000112-1043 PAGE ILOFEPA Form 3320-1 108-951 Previous editions may be used.

PERMITTEE NAMEIADDRESS (Inckid. FacilIty Nome/Location ifDif"ant) NAME EITEEGI NUCLEAR GENERATION CO

ADDRESS PILGRIM NUCLEAR POWER STATION 600 ROCKY HILL ROAD PLYMOUTH HA 02360

FACILITY PILGEIH NUCLEAR POWER STATION LOCATION PLYMOUTH MA 02360 ATTN: VILLIAM J. DICROCE

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMRJ

(2-16) (17-19)

PERMIT NUMBER I DISCHARGE NUMBER

I MONITORING PERIODI YEARI MO I DAY I

FROMI. UuI UZI (20-21) (22-23) (24-25)

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Approved. No. 2040-0004

oval expires 05-31-98

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EPA Form 3320-1 108-951 Previous editions may be used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED.) 00026/000112-1043 PAGE 10F

COMMENTS AND EXPLANA I OUN UO ANY VIOLA I IUN1 rireference at, artacnments nerel THE TEMPERATURE OF THIS DISCHARGE SHALL AT NO TIME EXCEED THE TEMPERATURE OF THE INTAKE WATERALL FISH SHELLFISH AND OTHER ORGANISMS-COLLECTED OR TRAPPED ON INTAKE SCREEN SHOULD BE RETURNED TO WATER OF AMBIENT TEMP. SUFFICIENTLY DISTAN FORM INTAKE STRUCTURES TO PREVENT REIMPINGEMENT.

EPA Form 3320-1 108-951 Previous editions may be used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED.) 00026/000112-.1043 PAGE 10F

PARAMETER • / (3 Card Only) QUANTITY OR LOADING f4 Card Only) QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLE (3R-ETE (46-53) (54-61) (38-45) (46-53) (54-61) OEX AY4S TYPE

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RTHE POSSIBILITY OF FINE AND IMPRISONMENT. SEE 10 U.S.C. 1 1001 AND 33

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PERMITTEE NAME/ADDRIESS (Include Facility NcmelLcation (fDwrumno NAME £ENERGY NUOCLEAR GENERATION CO ADDRESS PILGRIM~ NUCLEAR POWER STATION

600 ROCKY HILL RO0AD PLYMOUTHI MA 02360

FACILITY PILGEII NUCLEAR POWERi STATION LOCATION PLYM1OUTH MA& 02360 ATTN: WILLIAM1 J. DICROCE

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPOES) DISCHARGE MONITORING REPORT (DMRI

PEMTNUMBER DICAGENME

MONITORING PERIOD

Form Approved..

M~AJOR OMB No. 2040-0004

(SUBB S )Approval expires 05-31-98

F -FINAL

SEA FOAfl SUPRESSION DISCIHARGE

FROM TO E4~IODSIAG '

(2021)(2223/(2426) (2627/(2829)(3031) NOTE: Read Instructions befor( ~ting this form.:

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AVERAGE MAXIMUM UNITS MINIMUM' AVERAGE MAXIMUM UNITS. (62.63) (64_6) (69-70) FLOWI, IN CONDUIT OR~ SAMPLE .4(03) THIUJ TRiEATM~ENT PLAN! MEASUREMENTTo, 50050 1 0 0 PERMIT :ý*7 0: 7:5 1

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NAME/TITLE PRINCIPAL EXECUTIVE OFFICER I CERTIFY UNDER PENAL.TY OF LAW THAT I HAVE PERSONALLY EXAMINED AND TLPOEDT AM FAMILIAR WITH THE INFORMATION SUBMITTED HEREIN; AND BASED ON TLPOEDT MY INQUIRY OF THOSE INDIVDUAL.S IMMEDIATELY RESPONSIBLE FOR

60, f~ IT. ?0 C OBTAINING THE INFORMATION, I BELIEVE. THE SUBMITTED INFORMATION IS TRUE. ACCURATE AND COMPLETE. I AM AWARE THAT THERE ARE

PI-APT mm~cp- SIGNI*FICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING l THE POSSIBILITY OF FINE AND IMPRISONMENT. SEE 18 U.S.C. 1 1001 AND 33

ED ~U.S.C. I 1319. (Perwtidea urdor the setatutes may Includ* fines up to $70o,000 SI ATURE OF PRINCIPAL EXECUTIVE ARAi f && TYPED OR PRINTE an1d Or maXIMrn n bPdArWne f beween 6mondia and 5ywr.1jJ FFICE ORCTOIZDAETD UE R YERM A

COMMENTS AND EXPLANATION OF ANY VIOL ,ATIONS (Reference e// attachments here), IE RATOIE GN UBR IERM A

EPA Form 3320-1 (08-95) Previous editions may be used. IREPLACES EPA FORM T-40 HICH MAY NOT BE USED.) 000116/000112-1043 PAGE 10F

PERMITrEE NAME/ADDRESS (Inckid FacdhtyNomILoatio (fDiffreun)

NAME ENTERGY NUCLEAR GENERATION CO ADDRESS PILGRIM NUCLEAR POWER STATION

600 ROCKY HILL ROAD PLY1OUTH M.A 02360

FACILITY PILGRIM NUCLEAR POWER STATION LOCATION PLYMCUTH MA 02360 ATTN: WILLIAM J. DICROCE

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMRj

(2-16 77-79

00035E5701 PERMIT N U0 DISCHARGE NUMBER

MONITORING PERIOD

Form Approved.

MAJOR OMB No. 2040-0004

(SUI S ) Approval expires 05-31-98

F - FINAL PLANT SERVICE COOLING WATER

[YEARI MO I [YEA, MODAYj I I " " FROM JUZ TO I U*I UZI Z f NO DISCHARGE _ 1. •

(20-21) (22-23) (24-25) '(26-27) (28-29) (30-31) NOTE: Read Instructions before completing this form.

PARAMETER(3 Card Only) QUANTITY OR LOADING (4 Card Only) QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLE PARAMETER______3 ______54-61__" _38-_____-_______-61 OF,

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OXIDANTS, TOTAL SAMPLE

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VV1"OA)A,"C'9 SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING ,Al)0 0 THE POSSIBILITY OF FINE AND IMPRISONMENT. SEE 18 U.S.C. 0 1001 AND 33 XECUTIVE U S.C. § 131R. (Penshe#under A eND tIP eSONmyT Sclude fih up.Co.$1O, OI EXEIUIAVE AREA1 D , V

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(REPLACES EPA FORM T-40 WHICH MAY NOT BE USED.), 00058/000112-1L043 PAGE 10FEPA Form 3320-1 108-95) Previous editions may be used.

PERMITTEE NAME/ADDRESS (7nelm FadMyNmeL•ation (fD••no

NAME E?1TERGY NUCLEAR GENERATION CO

ADDRESS PILGRIM NUCLEAR POWER STATION 600 ROCKY HILL ROAD PLYMOUTH MA 02360

FACILITY PILGRIM NUCLEAR POWER STATION LOCATION PLYMOUTH HA 02360 ATTN: WILLIA8 J. DICROCE

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) DISCHARGE MONITORING REPORT (DMR)

(2-16) (17-19)

[ ERMIT NE R MISCHARGE NUMBER

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(. 20-21) (22-23) (24-25)

-IIYEAR I MO I DAY TOI uu1 U21

(26-2 7) (28-29)(33)

Form Approved.

MAJOR OMB No. 2040-0004

(SUBR s ) Approval expires 05-31-9,

F - :FINAL MAKE UP WATER AND DEMINERALIZE

NOTE: DISCHARGE c t NOTE: Read Instructions before, .0 e ing this form.

PARAMETER (3 Cvrd Only) QUANTITY OR LOADING (4 Card Only) QUANTITY OR CONCENTRATION NO. FREQUENCY SAMPLE

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• TRUE. ACCURATE AND COMPLETE. I AM AWARE THAT THERE ARE ,4qA=T7 SIGNIFICANT PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING IC,

THE POSSIBILITY OF FINE AND IMPRISONMENT. SEE 18 U.S.C. 1001 AND 33 5 1 00 63 U.S.C. 1319. (PeneAttee under 64e## gutu•te • fm nclude fine to$ 0,O 0 SIGN INCI L EXECUTIVE AR6

TYPED OR PRINTED ndormxt menrofbetwenmon nd a0 CER OR AUTHORIZED AGENT C UMBER YEAR MO DAY

EPA Form 3320-1 108-951 Previous editions may be used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED.) 00070/000112-1043 PAGE

COMMENIS AND EXPLANA i ION 0l- ANY VIOLA IONS (RNeterence all attachments here) SEE'PAGE 5 OF PERMIT PARAGRAPH N FOR SODIUM NITRATE REPORTING REQUIERMENTS. ATTACH ALL RELATED REPORTS TO THIS FORM

PAGE :1OF

8

EPA Form 3320-1 108-951 Previous editions may be used. (REPLACES EPA FORM T-40 WHICH MAY NOT BE USED.) 00070/000112-104 3