ML20138H697

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Mnps Monthly Discharge Monitoring Rept for March 1997
ML20138H697
Person / Time
Site: Millstone  Dominion icon.png
Issue date: 03/31/1997
From: Scace S
NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES SERVICE CO.
To:
CONNECTICUT, STATE OF
References
SES-97-GN-060, SES-97-GN-60, NUDOCS 9705070253
Download: ML20138H697 (46)
v • d • e


Text

Northeast 207 Se d** S*'*** 8*'lia, cr o6037 Utilities System w tae. s,* comp.oy P.O. Box 270 r Hanford, Cr 06141-0270 April 30,1997 (860) 665-5000 SES-97-GN-060 D10979 DMR Processing Department of Environmental Protection Water Management Bureau 79 Elm Street Hartford, CT 06106-5127

Reference:

Letter (C04876), NPDES Permit No. CT0003263, Millstone Nuclear Power Station, Northeast Nuclear Energy Company, dated December 14,1992.

Millstone Nuclear Power Station Monthly Discharge Monitoring March 1997 Paragraph 3 of the referenced NPDES Permit requires that discharges from the permitted facility be monitored according to a specified schedule and results be reported to the Water Management Bureau by the end of the month after the month in which samples are taken. Northeast Nuclear Energy Company (NNECO) herein submits the attached report for the month of March 1997.

Any variations from the permit are explained in the section headed "Results and Discussions" enclosed.

Additional samples taken at NPDES locations and analyzed with approved methods are included on Tables 3,4 and 5.

Should you have any questions or require further information, please call Mr. Paul Jacobson, Northeast Utilities Service Company, Environmental Services-Nuclear at (860) 447-1791 ext.

2335.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY

)

'}w f ,

S. E. icace M

Director - Nuclear Engineering Programs i

i Enclosure 070027

, cc: Ms. Michelle DiNoia i NRC ll ll lll ll Ill,I,1ll 9705070253 970331 PDR ADOCK 05000245 R PDR

l l

  • DMR Processing D10979/ Enclosure SES-97-GN-060  !

! April 30,1997 Millstone Nuclear Power Station Northeast Nuclear Energy Company l Results and Discussions NPDES Monthly Report - March 1997 Introduction This report fulfills the monitoring requirements for Millstone Nuclear Power Station, NPDES Permit No. CT0003263, renewed December 14,1992.

As requested in Form Letter, DEP to each NPDES facility, dated January 1,1988 (C01988), and reco;aizing DEP's requirement to submit data to EPA, NNECO will make every effon possible to submit the DMRs by the 20th of the month. However, in cases where the required data are not available, the DMRs will be submitted no later than the last day of the month in which they are due.

Results and Discussions Results of the continuous, weekly and monthly monitoring programs are summarized on the DMR sheets attached. With the exception of hydrazine, ethanolamine and boron, all sampling and analyses were conducted in accordance with approved procedures set forth in EPA Publication 600/4-79-02. Northeast Nuclear Energy Company submitted its own analysis procedures for these exceptions (D10309) for DEP approval on October 4,1996. l l

The computerized data logging report of the continuous monitoring program is included as  !

Table 1 for each month. This report is included because it provides data for the daily range of j pH, temperature and flow, a requirement of the NPDES permit. The DMR form does not have l

provisions for daily ranges. These data are computer-generated summaries of 15 minute sample averages.

< General Note - DMR Forms The DMR forms have some errors, omissions, and incorrect reporting requirements when compared to the permit requirements. They are included and def'med on Table 2.

i l

l I

1 I

DMR Processing '

D10979/ Enclosure '

SES-97-GN-%0 l April 30,1997 Ilvdrazine Removal Prior to Discharge via DSN 001C-2 l 1

On the dates listed below, wastewaters containing small amounts of hydrazine were detected in l one of the High Level Waste Drains Tanks (HLWDT) associated with DSN 001C-2. Consistent j with the manner in which similar wastewater has been previously handled, and as described in correspondence (D10682, D10715 and D10751) to the Department, the wastewaters in the HLWDT were processed through the demineralizers and filters associated with DSN 001C-2 prior to discharge from the Waste Test Tanks. These wastewaters met all limits associated with !

DSN 001C-2. Further, no hydrazine above detectable limits (< 5 ppb) using spectrophotometry j was found. The dates and volumes discharged are provided below. These discharges were '

previously reported in writing (D10873 and D10959) to the Department.

Dals Volume Discharged March 1,1997 18,480 gallons March 15,1997 16,485 gallons March 15,1997 16,380 gallons March 22,1997 16,590 gallons March 29,1997 14,358 gallons Discharae of Unit 2 Reactor Building Closed Coolina Water (RBCCW) Sumo Wastewater NNECO has previously discussed with the Department the discharge via DSN 001B-9 of certain wastewaters due to various activities at Unit 2. Due to these activities, the normal pathway (DSN 001B-5) could not be used, and these wastewaters were directed to the RBCCW sump and discharged from DSN 001B-9. This wastewater was discharged on the following dates through DSN 001B-9 and has been reported previously in writing to the Department (D10962). At tie time of each discharge, hydrazme was not detected (<350 ppb) using the titration method.

Dalg Volume Discharged March 1,1997 2,784 gallons March 2,1997 4,212 gallons March 3,1997 2,556 gallons March 4,1997 7,816 gallons March 24,1997 1,184 gallons March 25,1997 16,548 gallons

! March 26,1997 676 gallons March 27,1997 1,220 gallons March 28,1997 1,332 gallons

March 29,1997 676 gallons March 30,1997 665 gallons March 31,1997 340 gallons 2

DMR Processing D10979/ Enclosure SES-97-GN-060 April 30,1997 On March 29,1997, Unit i began using the Emergency Service Water (ESW) System in place of the normal Service Water System to cool the Turbine Building and Reactor Building heat exchangers. The ESW is sea water taken from the intake structure through backup service water pumps. During plant shutdown ESW backup pumps provide approximately 25% of the flow of normal Service Water. There is temporary chlorination of this system to prevent biofouling. The water is routed from the Main Condenser "D" outlet water box to the Circulating Water discharge tunnel (DSN 001 A) and Service Water discharge tunnel (DSN 001 A-5). Both locations are permitted to discharge up to 0.25 mg/L Free Available Chlorine. The Department was previously notified of this verbally and in writing (D10932).

DSN 001C-6(b) Hvdiazine Exceedance On March 12, 1997, routine analysis of the Unit 3 "A" Auxiliary Boiler showed 92 mg/L hydrazine. The permitted limit for hydrazine in this discharge (DSN 001C-6(b)) is 75 mg/L. On the following day, when the discharge was again sampled, hydrazine was back within permitted limits at 35 mg/L. Included in Table 5 is Auxiliary Boiler monitoring data for the month of March.

Pursuant to a verbal report made to the DEP on March 31, any additional analytical data will be reported as required under a separate cover letter.

i Freon in Unit 3 Closed Cooling Water Systems As reported to the Department by phone on April 9,1997 and in written correspondence (D11003), NNECO has identified the presence of freon at trace levels in the Unit 3 Reactor Plant Chilled Water System. Due to cross ties and historic system leakage, freon may also be present in the Reactor Plant Closed Cooling Water System (RBCCW). At the time of our correspondence, in-house analyticallaboratory analyses i,dicated freon levels of approximately 44.8 ppb and 60.7 ppb in the RBCCW. However, subsequent confirmatory analytical results from an outside laboratory has indicated that the freon concentrations were less than detectable. Additional information on this matter will be provided under separate cover as requested by the Department.

l l

3

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - DischarDe Monitoring Report (DMR)

DATE RECEIVED (STAMPED)

Permit: CT000326 MAJ Dist: 12 Town:152 Loc:003 Facility: MILLSTONE NUCLEAR POWER STA.

Contact:

Paul Jacobson Town: WATERFORD Phone: (860) 447-1791 Ext. 2335 Logged Delivered: OK'd:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow 2738000000 GPD ND = none detected Discharg 0011 Mon Loc- 1 COOLING WATER < 5000 Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

~ ~

50064 121492 0/1 G MG/L CHLORINE, FREE AVAILA ND <0.02 01/07 <0.02 <0.02 0.02 <0.02

~ ~

50060 121492 0/1 G MG/L CHLORINE, TOTAL RESID ND <0.02 01/07 <0.02 <0.02 <0.02 <0.02 50050 121492 Oli i MGD FLOW, IN CONDUIT OR THRU 1313.2 24/01 SEE ATTACHED TABLE 1 00400 121492 0/1 G SU PH 8.0 -

8.2 24/01 SEE ATTACHED TABLE 1 00018 121492 Oli i DEG TEMP DIFF BETWEEN SAMP 0.5 2.2 3.6 02/14 SEE ATTACHED TABLE 1 00011 121492 0/1 1 DEG TEMP. DEG FAHRENHEIT 39.2 41.0 42.7 24/01 SEE ATTACHED TABLE 1 00015 121492 0/1 CA BTU / THERMAL DISCHARGE MILLION 244.1 1141.3 01/01 SEE ATTACHED TABLE 1 KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow. 2738000000 GPD ND = none detected Discharg 0011 Mon Loc- 7 COOLING WATER < 5000 Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

~ ~

00011 121492 0/1 1 DEG TEMPERATURE DEG FAHR 45.0 24/01 SEE ATTACHED TABLE 1 COMMENTS:

Page1

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION - .

Bureau of Water Management - Deschange Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 ,

Average Flow: 604800000 GPD ND = none detected Descharg 001 A Mon Loc 1 COOLING WATER < 5000 Sample Weeks Code Statt s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 s

50064 120192 0/1 G KG/D CHLORINE, FREE AVAILABLE 14.4 01/07 50064 120192 0/1 G MG/L CHLORINE, FREE AVAILABLE 0.11 01/07 0.08 0.11 0.10 0.11 Unit shutdown, upstream flows only.

01042 091986 0/0 CP UG/L COPPER, TOTAL (AS CU) -

01/90 No discharge

~ ~

50050 091986 0/0 i MGD FLOW, IN CONDUlT OR THRU 34.5 24/01 SEE ATTACHED TABLE 1 Upstream flows only. No circ water flow.

01051 091986 0/0 CP UG/L LEAD TOTAL (AS PB) -

01/90 No discharge 01067 091986 0/0 CP UG/L NICKEL, TOTAL (AS NI) - 01/90 No discharge 00610 091986 0/0 CP UG/L NITROGEN, AMMONIA TOTAL - 01/90 No discharge 00556 091986 0/0 CP UG/L OIL & GREASE FREON EXTR -

01/90 No discharge 04.400 091986 0/0 l SU PH 7.7 8.0 24/01 SEE ATTACHED TABLE 1 Unit shutdown, upstream flows only.

~ ~

IF.,530 091986 0/0 CP UG/L SOLIDS, TOTAL SUSPENDED -

01/90 No discharge

- ~

38260 091986 0/0 CP UG/L SURFACTANTS (MBAS) - 01/90 No discharge 00018 0'J1986 0/0 1 DEG TEMP DIFF BETWEEN SAMPLE 0.9 2.8 6.1 01/01 SEE ATTACHED TABLE 1 Unit shutdown, upstream flows only.

00011 091986 0/0 1 DEG TEMPERATURE DEG FAHR 40.2 41.6 47.0 24/01 SEE ATTACHED TABLE 1 Unit shutdown, upstream flows only.

00015 091986 0/0 CA BTU / THERMAL DISCHARGE MILLION 15.5 38.9 01/01 SEE ATTACHED TABLE 1 Unit shutdown, upstream flows only.

~ ""*

01092 091986 0/0 CP UG/L ZINC, TOTAL (AS ZN) -

01/90 No discharge COMMENTS:

Page 2 -

_ _ . . _ _ . . _ . __._.z. _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ . _ _ _ _ _ _ . _ _ _ . _ _ _ _ _ _ _ _ _ __ __ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION - -

Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow 604800000 GPD ND = none detected Discharg 001 A Mon Loc G COOLING WATER < 5000 Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 01042 091986 0/0 CP UG/L COPPER, TOTAL (AS CU) -

01/90 No discharge 01051 091986 0/0 CP UG/L LEAD, TOTAL (AS PB) - -

01/90 No discharge 01067 091986 0/0 CP UG/L NICKEL, TOTAL (AS NI) -

01/90 No discharge 00610 091986 0/0 CP UG/L NITROGEN, AMMONIA TOTAL - -

01/90 No discharge 00556 091986 0/0 CP UG/L OIL & GREASE FREON EXTR -

01/90 No discharge 00530 091986 0/0 CP UG/L SOLIDS, TOTAL SUSPENDED - 01/90 No discharge 38260 091986 0/0 CP UG/L SURFACTANTS (MBAS) - 01/90 No discharge 01092 091986 0/0 CP UG/L ZINC. TOTAL (AS ZN) -

01/90 No discharge COMMENTS:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 199Z Average Flow- 604800000 GPD ND = none detected Discharg 001 A Mon Loc T COOLING WATER < 5000 Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 TGB6A 091986 0/0 CP P/F P/F STAT ACU CYPRINODON -

02/99 No discharge TGA3E 091986 0/0 CP P/F P/F STAT ACU MYSIDOPSIS -

02/99 No discharge TGC6A 091986 0/0 CP P/F P/F CHR CYPRINODON -

02/99 No discharge TGC3E 091986 0/0 CP P/F P/F CHR MYSIDOPSIS -

02/99 No discharge Page 3

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION

  • Bureau of Water Managemerd - Discharge Monitoring Report (DMR) l KEY: CT0003263 Issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 820000000 GPD NO = none detected Discharg 001 B Mon Loc- 1 NON-CONTACT COOLING WATER Sample Weeks Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 50064 121492 0/1 G KG/D CHLORINE, FREE AVAILABLE 214 01/07 50064 121492 Ol1 G MG/L CHLORINE, FREE AVAILABLE -

t 07 01/07 0.04 0.06 0.07 0.06 01042 091986 0/0 CP UG/L COPPER, TOTAL (AS CU) -

01/90 Last sampled 1-97 -

50050 121492 0/1 i MGD FLOW, IN CONDUlT OR THRU 807.8 24/01 SEE ATTACHED TABLE 1 01051 091986 0/0 CP UG/L LEAD. TOTAL (AS PB) -

01/90 Last sampled 1-97 ,

01067 091986 0/0 CP UG/L NICKEL, TOTAL (AS NI) -

01/90 Last sampled 1-97 00610 091986 0/0 CP UG/L NITROGEN, AMMONIA TOTAL - -

01/90 Last sampled 1-97 00556 091986 0/0 CP UG/L OIL & GREASE FREON EXTR -

01/90 Last sampled 1-97 00400 091986 0/0 1 SU PH 7.8 -

8.0 24/01 SEE ATTACHED TABLE 1 00530 091986 0/0 CP UG/L SOLIDS, TOTAL SUSPENDED -

01/90 Last sampled 1-97 38260 091986 0/0 CP UG/L SURFACTANTS(MBAS) -

01/90 Last sampled 1-97 00018 091986 0/0 i DEG TEMP DIFF BETWEEN SAMPLE 0.0 1.2 3.3 01/01 SEE ATTACHED TABLE 1 00011 091986 0/0 l DEG TEMPERATURE DEG FAHR 38.9 41.2 43.3 24/01 SEE ATTACHED TABLE 1 00015 091986 0/0 CA BTU / THERMAL DISCHARGE MILLION 40.5 283.8 01/01 SEE ATTACHED TABLE 1 01092 091986 0/0 CP UG/L ZINC, TOTAL (AS ZN) -

01/90 Last sampled 1-97 COMMENTS:

Page 4

STATE OF CONNECTICUT ** DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 820000000 GPD ND = none detected Discharg 001 B Mon Loc: G NON-CONTACT COOLING WATER Sample Weeks:

Code Stati s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 01042 091986 0/0 CP UG/L COPPER, TOTAL (AS CU) -

01/90 Last sampled 1-97 01051 091986 0/0 CP UG/L LEAD, TOTAL (AS PB) - -

01/90 Last sampled 1-97 01067 091986 0/0 CP UG/L NICKEL TOTAL (AS NI) -

01/90 Last sampled 1-97 00610 091986 0/0 CP UG/L NITROGEN, AMMONIA TOTAL - 01/90 Last sampled 1-97 00556 091986 0/0 CP UG/L OIL & GREASE FREON EXTR -

01/90 Last sampled 1-97 00530 091986 0/0 CP UG/L SOLIDS, TOTAL SUSPENDED - -

01/90 Last sampled 1-97 38260 091986 0/0 CP UG/L SURFACTANTS (MBAS) -

01/90 Last sampled 1-97 01092 091986 0/0 CP UG/L ZINC, TOTAL (AS ZN) -

01/90 Last sampled 1-97 COMMENTS:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: 820000000 GPD ND = none detected Discharg 001 B Moe Loc: T NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 TGB6A 091986 0/G CP P/F P/F STAT ACU CYPRINODON -

02/99 Last sampled 1-97  !

TGA3E 091986 0/0 CP P/F P/F STAT ACU MYSIDOPSIS -

02/99 Last sampled 1-97 TGC6A 091986 0/0 CP P/F P/F CHR CYPRINODON -

02/99 Last sampled 1-97 TGC3E 091986 0/0 CP P/F P/F CHR MYSIDOPSIS -

02/99 Last sampled 1-97 Page 5

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION

  • Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 1313200000 GPD ND = none detected Discharg 001 C Mon Loc 1 NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 50064 121492 0/1 G KG/D CHLORINE, FREE AVAILABLE 557 01/07 50064 121492 0/1 G MG/L CHLORINE, FREE AVAILABLE -

0.16 01/07 No Add 0.16 No Add 0.13 01042 091986 0/0 CP UG/L COPPER TOTAL (AS CU) -

01/90 Last sampled 1-97 50050 121492 0/1 i MGD FLOW, IN CONDUIT OR THRU 918.7 24/01 SEE ATTACHED TABLE 1 01051 091986 0/0 CP UG/L LEAD, TOTAL (AS PB) -

01/90 Last sampled 1-97 01067 091986 0/0 CP UG/L NICKEL, TOTAL (AS NI) - -

01/90 Last sampled 1-97 00610 091986 0/0 CP UG/L NITROGEN AMMONIA TOTAL -

01/90 Last samplexi 1-97 00556 091986 0/0 CP UG/L OIL & GREASE FREON EXTR -

01/90 Last sampled 1-97 00400 091986 0/0 l SU PH 7.9 8.3 24/01 SEE ATTACHED TABLE 1 00530 091986 0/0 CP UG/L SOLIDS, TOTAL SUSPENDED - - -

01/90 Last sampled 1-97 38260 091986 0/0 CP UG/L SURFACTANTS (MBAS) -

01/90 Last sampled 1-97 00018 091986 0/0 l DEG TEMP DIFF BETWEEN SAMPLE 0.0 0.7 2.3 01/01 SEE ATTACHED TABLE 1 00011 091986 0/0 i DEG TEMPERATURE DEG FAHR 38.8 40.8 43.2 24/01 SEE ATTACHED TABLE 1 00015 091986 0/0 CA BTU / THERMAL DISCHARGE MILLION 12.4 163.1 01/01 SEE ATTACHED TABLE 1 01092 091986 0/0 CP UG/L ZINC, TOTAL (AS ZN) -

01/90 Last sampled 1-97 COMMENTS:

Page 6

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION '

Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flovc 1313200000 GPD ND = none detected Discharg 001 C Mon Loc: G NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 01042 091986 0/0 CP UG/L COPPER, TOTAL (AS CU) -

01/90 Last sampled 1-97

~ ~

01051 091986 0/0 CP UG/L LEAD, TOTAL (AS PB) -

01/90 Last sampled 1-97

""* ~

01067 091986 0/0 CP UG/L NICKEL, TOTAL (AS NI) -

01/90 Last sampled 1-97 00610 091986 0/0 CP UG/L NITROGEN, AMMONIA TOTAL -

01/90 Last samplad 1-97 00556 091986 0/0 CP UG/L OIL & GREASE FREON EXTR -

01/90 Last sampled 1-97

~ ~

00530 091986 0/0 CP UG/L SOLIDS,TOTALSUSPENDED -

01/90 Last sampled 1-97 38260 091986 0/0 CP UG/L SURFACTANTS (MBAS) - 01/90 Last sampled 1-97 l 01092 091986 0/0 CP UG/L ZINC, TOTAL (AS ZN) -

01/90 Last sampled 1-97 COMMENTS:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: 1313200000 GPD ND = none detected Discharg 001 C Mon Loc: T NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

~ -

TGB6A 091S86 0/0 CP P/F P/F STAT ACU CYPRINODON -

02/99 Last sampled 1-97

"*" ~

TGA3E 091986 0/0 CP P/F P/F STAT ACU MYSIDOPSIS -

02/99 Last sampled 1-97 TGC6A 091986 0/0 CP P/F P/F CHR CYPRINODON -

02/99 Last sampled 1-97 TGCSE 091986 0/0 CP P/F P/F CHR MYSIDOPSIS - 02/99 Last sampled 1-97 Page 7

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION *

  • Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow INTERMITT GPD NO = none detected Discharg 005 Mon Loc- 1 STORMWATER t Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4- 5 00056 120192 0/1 I GPD FLOW RATE, AVERAGE DAILY 57600 02/99 57600 00556 120192 0/1 G MG/L OIL & GREASE FREON EXTR 0.6 02/99 0.6

~ ~

00530 120192 0/1 G MG/L SOLIDS, TOTAL SUSPENDED 6.9 02/99 6.9 COMMENTS:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow 432000 GPD ND = none detected Dischar9 006 Mon Loc: 1 STEAM ELECTRIC POWER PLNT Sample Weeks: ,

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00698 120192 0/1 CP KG/D BORIC ACID Code 9 01/07 00698 120192 0/1 CP MG/L BORIC ACID Code 9 01/07

~

50060 120192 0/1 G MG/L CHLORINE,TOTALRESID ND 0.03 0.08 01/07 0.05 0.03 0.07 0.08 Weekly high values. See Table 3.

01042 120192 0/1 CP KG/D COPPER, TOTAL (AS CU) 0.0032 01/07 .0025 .0020 .0015 .0032

~ ~

01042 120192 0/1 CP MG/L COPPER TOTAL (AS CU) ND <0.02 01/07 <0.02 <0.02 <0.02 <0.02 00056 120192 Oli I GPD FLOW RATE, AVERAGE DAILY 84720 02/99 66K 53K 41K 85K 01051 120192 0/1 CP KG/D LEAD, TOTAL (AS PB) 0.0161 01/07 .0125 .0100 .0078 .0161 '

01051 120192 0/1 CP' MG/L LEAD, TOTAL (AS PB) ND <0.10 01/G/ <0.10 <0.10 <0.10 <0.10 01067 120192 0/1 CP KG/D NICKEL, TOTAL (AS NI) 0.0080 01/07 .0062 .0050 .0038 .0080 Comment:

Page 8

CTATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION

  • Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 432000 GPD ND = none detected i Discharg 006 Mon Loc- 1 STEAM ELECTRIC POWER PLNT Sample Weeks:

Code Start s/m Typ Unit Parameter M& Ave. Max. Freq 1 2 3 4 5

" ~

01067 120192 0/1 CP MG/L NICKEL, TOTAL (AS NI) ND <0.05 01/07 <0.05 <0.05 <0.05 <0.05

~

00556 120192 0/1 G MG/L OIL & GREASE FREON EX ND <0.5 <0.5 01/30 <0.5 <0.5 <0.5 <0.5

<0.5 <0.5 00400 120192 0/1 G SU PH 7.05 -

8.06 01/07 7.05 7.84 8.06 7.06 7.53 7.60 7.79 7.65 7.30

~

00530 120192 0/1 CP MG/L SOLIDS. TOTAL SUSPENDED 7.4 16.7 01/07 9.7 1.6 1.5 16.7 01092 120192 0/1 CP KG/D ZINC, TOTAL (AS ZN) 0.1353 01/07 .1100 .0341 .0279 .1353 01092 120192 0/1 CP MG/L ZINC, TOTAL (AS ZN) 0.44 01/07 0.44 0.17 0.18 0.42 COMMENTS:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 432000 GPD ND = none detected Discharg 006 Mon Loc- T STEAM ELECTRIC POWER PLNT Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

- ~

TGA3E 120192 0/0 CP P/F P/F STAT ACU MYSIDOPSIS -

02/99 Last sampled 1-97 TGC3E 120192 0/0 CP P/F P/F STAT CHR MYSIDOPSIS -

02/99 Last sampled 1-97 COMMENTS l \

l k

Page 9

_ _ _ _ _ . - _ . __ _. -__._..________m.-__. __._--_- _._:___ ___ . ____._-___m - _ _ __ _ _ . _ _ _ - . - a _____--i--_____-.__ . _ . _ _ _ _ - - - . .

GTATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION

  • Bureau of Water Management - Discharge Monitosing Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: INTERMITT GPD ND = none detected  !

Discharg 008 Mon Loc: 1 STORMWATER i Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

  • 00056 120192 Ol1 I GPD FLOW RATE, AVERAGE DAILY 10080 02/99 10080 i 00556 120192 0/1 G MG/L OlL & GREASE FREON EXTR 0.5 02/99 0.5 i 00530 120192 0/1 G MG/L SOLIDS TOTAL SUSPENDED 3.1 02/99 3.1 KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- INTERMITT GPD NO = none detected Discharg 009 Mon Loc: 1 STORMWATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 j

~ *""

00056 120192 Oli i GPD FLOW RATE, AVERAGE DAILY 2880 02/99 2880 00556 120192 0/1 G MG/L OIL & GREASE FREON EX ND <0.5 02/99 <0.5 00530 120192 0/1 G MG/L SOLIDS, TOTAL SUSPENDED 3.8 02/99 3.8 KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: INTERMITT GPD ND = none detected Discharg 016 Mon Loc: 1 STORMWATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

~ ~

GPD FLOW RATE, AVERAGE DAILY i

00056 120192 0/1 1 36000 02/99 36000

~ ~

00556 120192 0/1 G MG/L OIL & GREASE FREON EXTR 0.7 02/99 0.7

"*" ~

00530 120192 Ol1 G MG/L SOLIDS, TOTAL SUSPENDED 2.6 02/99 2.6 Page 10

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION *

  • Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flovr. 604800000 GPD ND = none detected Discharg 01 A 1 Mon Loc: 1 COOLING WATER < 5000 ,

Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

~ ~

00164 120192 0/1 T GPB FLOW, GALLONS / BATCH NF 02/99 No Discharge 00400 091686 0/0 G SU PH ~ ~

NF 01/07 No Discharge 00095 091686 0/0 G HM/C SPECIFIC CONDUCTANCE NF 01/07 No Discharge Comments:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: 14000 GPD ND = none detected Discharg 01 A2 Mon Loc: 1 BUILDING FLOOR DRAIN Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 GPB FLOW, GALLONS / BATCH - -

00164 120192 0/1 T 11200 01/01 10250 11200 9300 8500 9500 9600 10100 9350 00400 091986 0/0 G SU PH - -

8.67 01/07 8.49 7.94 8.10 8.38 8.67 8.31 8.19 8.30 00530 120192 0/1 G KG/D SOLIDS. TOTAL SUSPENDED 0.0291 01/07 .0233 .0254 .0105 .0161 .0108

.0291 .0038 .0177 00530 120192 0/1 G MG/L SOLIDS.TOTALSUSPENDED 0.8 01/07 0.6 0.6 0.3 0.5 0.3 0.8 0.1 0.5 KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 3500 GPD ND = none detected Discharg 01 A 4 Mon Loc 1 WATER PRODUCTION WASTEWTR -

Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 -

00698 120192 0/1 G KG/D BORIC ACID Code 9 H/DS

~ ~

00698 120192 0/1 G MG/L BORIC ACID Code 9 H/DS 00164 120192 0/1 T GPB FLOW, GALLONS / BATCH 2652 01/BA NF NF NF 2652 NF Page 11

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PRO 1ECTION Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 43200000 GPD ND = none detected Discharg 01 A 5 Mon Loc: 1 NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 50064 120192 0/1 G MG/L CHLORINE, FREE AVAILA ND 0.11 01/07 <0.02 0.11 0.10 0.11

~ ~

50050 091986 0/0 i MGD FLOW, IN CONDUlT OR THRU 14.4 01/07 14.4 14.4 3.6 14.4 00011 091986 0/0 G DEG TEMPERATURE DEG FAHR 55 01/07 45 55 40 44 COMMENTS:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 1,440,000 GPD ND = none detected Discharg 0181 Mon Loc 1 BLOWCOWN FR HEAT & COOL Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 i 00698 091986 0/0 G KG/D BORIC ACID Code 9 02/99 During treatment only

~ ~

50050 091986 0/0 T MGD FLOW, IN CONDUlT OR THRU -

01/07 NO DISCHARGE

~ ~

00530 121492 0/1 G KG/D SOLIDS, TOTAL SUSPENDED -

01/07 NO DISCHARGE

~ ~

00530 121492 0/1 G MG/L SOLIDS, TOTAL SUSPENDED -

01/07 NO DISCHARGE

~ ~

00011 091986 0/0 I DEG TEMPERATURE DEG FAHR -

01/07 NO DISCHARGE COMMENTS:

Page 12

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECT.ON Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 5000 GPD ND = none detected Discharg 01B 2 Mon Loc 1 BLOWDOWN FR HEAT & COOL Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00698 120192 0/1 BC KG/D BORIC ACID 65.6 01/07 61.9 42.1 65.6 60.9 NF 00164 120192 0/1 T GPB FLOW, GALLONS / BATCH 3144 01/07 2632 3056 3144 2280 NF 00400 091986 0/0 G SU PH 6.86 01/07 6.86 6.73 5.65 5.03 NF 00530 091986 0/0 G MG/L SOLIDS TOTAL SUSPENDED 4.7 7.0 01/07 3.9 3.0 4.9 7.0 NF KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 30000 GPD ND = none detected Discharg 01B 3 Mon Loc: 1 BLOWDOWN FR HEAT & COOL Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00698 091986 0/0 BC KG/D BORIC ACID *"** ""*

517.4 01/07 NF 432.5 492.4 517.4 NF

~ ~

00164 091986 0/0 T GPB FLOW, GALLONS / BATCH 12299 01/07 NF 11396 12532 12968 NF

~

00530 091986 0/0 G MG/L SOLIDS TOTAL SUSPENDED 1.2 1.4 01/07 NF 1.1 1.2 1.4 NF KEY: CT0003263 ' Issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 28800000 GPD ND = none detected Discharg 01B 5 Mon Loc: 1 NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 e 3 4 5 50064 120192 0/1 G MG/L CHLORINE, FREE AVAILABLE 0.11 01/07 0.11 0.05 0.07 0.08 50050 120192 0/1 T MGD FLOW, IN CONDUlT OR THRU 19.3 01/07 17.7 19.3 17.4 10.8 00011 120192 Oli i DEG TEMPERATURE DEG FAHR 44 01/07 43 41 42 44 Page 13

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION - -

Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY:CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 25000 GPD ND = none detected Discharg 018 6 Mon Loc: 1 WATER PRODUCTION WASTEWTR Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00698 091986 0/0 BC KG/D BORIC ACID -

Code 9 02/99 00164 120192 0/1 T GPB FLOW, GALLONS / BATCH 18000 01/07 NF NF NF 18000 15300 00556 120192 0/1 G MG/L OIL & GREASE FREON EX ND <0.5 01/30 NF NF NF <0.5 00400 091986 0/0 G SU PH - -

8.64 01/07 NF NF NF 8.64 S.48 00530 120192 0/1 G MG/L SOLIDS TOTALSUSPENDED 11.8 01/07 NF NF NF 3.4 11.8 COMMENTS:

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 5760000 GPD ND = none detected Discharg 01B 7 Mon Loc- 1 NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 KG/D CHLORINE, FREE AVAILABLE - -

50064 091986 0/0 G - 01/07 NO DISCHARGE 50064 091986 0/0 G MG/L CHLORINE, FREE AVAILABLE - 01/07 NO DISCHARGE 50050 120192 0/1 T MGD FLOW, IN CONDUlT OR THRU -

02/99 NO DISCHARGE 00011 120192 0/1 I DEG TEMPERATURE DEG FAHR -

01/07 NO DISCHARGE COMMENTS:

Page 14

STATE OF CONNECTICUT ** DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - Discharge MonMoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: 100000 GPD ND = none detected Discharg 01B 8 Mon Loc: 1 BLOWDOWN FR HEAT & COOL Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00164 120192 0/1 T GPB FLOW, GALLONS / BATCH -

01/DD NF NF NF NF NF 81313 120192 0/1 G MG/L HYDRAZINE -

01/DD NF NF NF NF NF 01045 120192 0/1 G MG/L IRON, TOTAL (AS FE) - 01/DD NF NF NF NF NF 00400 120192 0/1 I SU PH - - -

01/DD NF NF NF NF NF 00530 120192 0/1 G MG/L SOLIDS, TOTAL SUSPENDED - 01/DD NF NF NF NF NF 00011 120192 0/1 G DEG TEMPERATURE DEG FAHR -

01/DD NF NF NF NF NF COMMENTS: Note 1 = Discharged through deicing pit.

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: 30000 GPD ND = none detected Discharg 018 9 Mon Loc: 1 NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00056 120192 0/1 T GPD FLOW RATE AVERAGE DAILY 16548 01/DD 7816 NF NF 16548 665 l Notel weewy men see Tatde 4 81313 091986 0/0 G MG/L HYDRAZINE ND <0.350 01/DD <.350 NF NF <.350 <.350 Weekly max. see Table 4 00011 120192 Oli i DEG TEMPERATURE DEG FAHR 71 01/DD 68 NF NF 71 71 Weekly max. see Table 4 COMMENTS: Note 1 = See Results and Discussion.

Page 15

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION

  • Bureau of Water Mar.ayant - Discharge Monitoring Repost (DMR)

KEY: C10003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: 1400000 GPD ND = none detected Discharg 01C 1 Mon Loc: 1 STEAM ELECTRIC POWER PLNT Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00698 091986 0/0 G KG/D BORIC ACID Code 9 02/99 Conditional Monitoring 50050 120192 Oli i MGD FLOW, IN CONDUIT OR THRU -

01/07 NO DISCHARGE 00400 091986 0/0 G SU PH -

01/07 NO DISCHARGE 00530 120192 0/1 G MG/L SOLIDS, TOTAL SUSPENDED - 01/07 NO DISCHARGE 00011 120192 0/1 G DEG TEMPERATURE DEG FAHR -

01/07 NO DISCHARGE KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 25000 GPD ND = none detected Discharg 01C 2 Mon Loc: 1 BUILDING FLOOR DRA!N Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00698 120192 0/1 BC KG/D BORIC ACID 567.3 01/07 567.3 436.8 344.8 369.0 NF Weekly max. see Table 5 00164 120192 0/1 I GPB FLOW, GALLONS / BATCH 18480 01/07 18480 16485 16590 14700 NF Weekly max. see Table 5 01132 091986 0i0 G MG/L LITHlUM, TOTAL (AS LI) ND <0.10 01/07 <0.10 <0.10 <0.10 <0.10 NF Weekly max. see Table 5 00400 091986 0/0 G SU PH 6.32 01/07 4.32 4.62 4.45 6.32 NF Weekly max. see Table 5 00095 091986 0/0 G HM/C 6PECIFIC CONDUCTANCE 28.3 01/07 12.9 13.4 12.8 28.3 NF Weekly max. see Table 5 COMMENTS:

Page 16

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - Descharge Monitoring Report (DMR)  !

l KEY: CT0003263 issue: 121492 Expwe: 12/14/97 Sample Month March 1997 Average Flow- 5000 GPD ND = none detected Descharg 01C 3 Mon Loc 1 BLOWDOWN FR HEAT & COOL Sample Weeks: l Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 I 00698 120192 0/1 G KG/D BORIC ACID 47.7 H/D NF 2.8 47.7 24.3 NF Weekly maximum, see Table 4  ;

00164 120192 0/1 T GPB FLOW, GALLONS / BATCH 3600 01/07 NF 3360 3600 3240 NF i

Weekly maximum, see Table 4 00400 091986 0/0 G SU PH - -

11.90 01/07 NF 11.90 9.45 11.14 NF  !

Weekly maxwnum, see Table 4 00530 120192 Ol1 G MG/L SOLIDS, TOTAL SUSPENDED 43.0 01/07 NF 32.1 43.0 32.6 NF  ;

Weekly maximum, see Table 4 KEY: CT0003263 Issue: 121492 Expwe: 12/14/97 Sample Month March 1997 Average Flow- 80000 GPD ND = none detected  ;

Discharg 01C 4 Mon Loc: 1 WATER PRODUCTION WASTEWTR Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

~ -

00164 091986 0/0 T GPB FLOW, GALLONS / BATCH 55000 01/07 55000 53000 NF 35490 NF ,

" ~

81313 091986 0/0 G MG/L HYDRAZINE ND <0.350 02/99 <.350 <.350 NF <.350 NF i t

00400 091986 0/0 G SU PH " "

8.31 01/07 7.56 6.00 NF 8.31 NF t

~ ~

00530 120192 0/1 G MG/L SOLIDS.TOTALSUSPENDED 42.8 01/07 40.6 41.0 NF 42.8 NF

, t

! KEY: CT0003263 issue: 121492 Expwe: 12/14/97 Sample Month March 1997 i Average Flow: 43200000 GPD ND = none detected i Discharg 01C 5 Mon Loc- 1 NON-CONTACT COOLING WATER  !

Sample Weeks Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5  !

50064 120192 0/1 G MG/L CHLORINE, FREE AVAILABLE 0.17 01/07 0.17 0.16 0.17 0.17 0.14  !

Weekly maximum. See Table 3  !

MGD FLOW, IN CONDUlT OR THRU ~ ~

50050 120192 Oli i 43.2 02/99 43.2 43.2 43.2 43.2

~ ~

00011 120192 Oli i DEG TEMPERATURE DEG FAHR 46 01/07 46 44 41 41 Page 17  ;

[

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION '

Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 25000 GPD ND = none detected Discharg 01C 6 Mon Loc: 1 WATER PRODUCTION WASTEWTR Sample Weeks: .

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00164 120192 0/1 T GPB FLOW, GALLONS / BATCH 19320 01/07 18860 19320 18630 14030 NF 13800 16560 15410 81313 120192 Ol1 G MG/L HYDRAZINE 9.90 02/99 9.90 6.70 0.63 0.09 NF 0.82 0.42 9.90 00556 120192 0/1 G KG/D OlL & GREASE FREON EXTR 0.0178 01/30 .0178

.0130 00556 120192 0/1 G MG/L OIL & GRE ~ E FREON EX ND <0.5 01/30 <0.5 ,

<0.5 00400 091986 0/0 G SU PH - -

8.83 01/07 6.98 8.81 6.19 7.72 NF ,

7.25 8.83 7.57 00530 120192 0/1 G KG/D SOLIDS, TOTAL SUSPENDED 0.57 01/07 0.57 0.48 0.43 0.003 NF 0.06 0.07 0.52 00530 120192 0/1 G MG/L SOLIDS, TOTAL SUSPENDED 8.9 01/07 8.0 6.5 6.1 0.1 NF 1.2 1.2 8.9 00011 120192 0/1 G DEG TEMPERATURE DEG FAHR 68 01/07 68 66 68 67 NF 67 65 KEY: C70003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 100000 GPD ND = none detected '

Discharg 01C 8 Mon Loc: 1 BLOWDO*/IN FR HEAT / COOL ,

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 l

00164 120192 0/1 BC GPB FLOW, GALLONS / BATCH -

02/99 NF NF NF NF NF 81313 120192 0/1 G MG/L HYDRAZINE -

01/DD NF NF NF NF NF l 01045 120192 0/1 G MG/L 1RON, TOTAL (AS FE) -

01/DD NF NF NF NF NF 00400 091986 0/0 G SU PH - -

01/DD NF NF NF NF NF 00530 120192 0/1 G MG/L SOLIDS, TOTAL SUSPENDED -

01/DD NF NF NF NF NF 00011 120192 0/1 G DEG TEMPERATURE DEG FAHR - 01/DD NF NF NF NF NF Page 18

~ '

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION  !

Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flom 300000 GPD ND = none detected Discharg 01C 9 Mon Loc 1 NON-CONTACT COOLING WATER Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 GPD FLOW RATE, AVERAGE DAILY - -

00056 120192 0/1 i 900 01/DD NF NF 900 NF NF

~ ~

81313 091386 0/0 G MG/L HYDRAZINE 4.4 01/DD NF NF 4.4 NF NF

~ ~

00011 120192 0/1 G DEG TEMPERATURE DEG FAHR 68 01/DD NF NF 68 NF NF KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 220 GPD ND = none detected Discharg 1 A2 A w.on Loc 1 MISC LAUNDRY & GARMENT Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00164 120192 0/1 T GPB FLOW, GALLONS / BATCH - 01/DD NO DISCHARGE 70n15 091986 0/1 G MG/L FREON, TOTAL -

01/DD NO DISCHARGE 00556 120192 0/1 G MG/L OIL & GREASE FREON EXTR - 01/DD NO DISCHARGE KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow 6500 GPD ND = none detected Discharg 1 A2 B Mon Loc: 1 MISC LAUNDRY & GARMENT "

Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00164 120192 0/1 T GPB FLOW, GALLONS / BATCH -

01/DD NO DISCHARGE  !

70015 091986 0/1 G MG/L FREON, TOTAL -

01/DD NO DISCHARGE

~ ~

00556 120192 0/1 G MG/L OIL & GREASE FREON EXTR - 01/DD NO DISCHARGE Page 19

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - Descharge Monitoring Report (DMR) -

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flom 70000 GPD ND = none detected Discharg 1B1 A Mon Loc: 1 BLOWDOWN FR HEAT & COOL Sample Weeks:  ;

Code Start s/m Typ Unit Parameter Min. Avo. Max. Freq 1 2 3 '4 5 i 00164 120192 0/1 G GPB FLOW, GALLONS / BATCH -

01/DD NO DISCHARGE 81313 120192 0/1 i KG/D HYDRAZINE -

01/DD NO DISCHARGE 81313 120192 Oli l MG/L HYDRAZINE -

01/DD NO DISCHARGE 00011 120192 Ol1 l DEG TEMPERATURE DEG FAHR -

01/DD NO DISCHARGE KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flom 107000 GPD ND = none detected  !

Discharg 182 A Mon Loc: 1 BLOWDOWN FR HEAT & COOL  !

_ Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00619 091986 0/0 CP MG/L AMMONIA, UNIONIZED -

01/07 NO DISCHARGE  ;

CP MG/L BERYLLIUM, TOTAL RECOVE *"" -

00998 091986 0/0 - 01/DD NO DISCHARGE 00310 091986 0/0 CP MG/L BOD 5 DAY (20 DEG C) -

01/07 NO DISCHARGE 01027 091986 0/0 CP MG/L CADMlUM, TOTAL (AS CD) -

01/DD NO DISCHARGE f 00335 091986 0/0 CP MG/L CHEMICAL OXYGEN DEMAND -

01/DD NO DISCHARGE 01034 091986 0/0 CP MG/L CHROMlUM, TOTAL (AS CR) -

01/DD NO DISCHARGE 01042 091986 0/0 CP MG/L COPPER, TOTAL (AS CU) -

01/DD NO DISCHARGE 00164 120192 0/1 G GPB FLOW, GALLONS / BATCH -

01/DD NO DISCHARGE i 01045 091986 0/0 CP MG/L IRON, TOTAL (AS FE) -

01/DD NO DISCHARGE Page 20 i

GTATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - Discharge Monitoring Report (DMR)

KEY: CT0003263 Issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow 107000 GPD ND = none detected Discharg 1B2 A Mon Loc: 1 BLOWDOWN FR HEAT & COOL Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 01051 091986 0/0 CP MG/L LEAD TOTAL (AS PB) 01/DD NO DISCHARGE 01067 091986 0/0 CP MG/L NICKEL, TOTAL (AS NI) ~ ~ -

01/DD NO DISCHARGE 00556 091986 0/0 G ~ ~

MG/L OIL & GREASE FREON EXTR -

01/DD NO DISCHARGE 00400 091986 0/0 G SU PH ~ ~ -

01/DD NO DISCHARGE 00530 091986 0/0 CP MG/L SOLIDS, TOTAL SUSPENDED ~ ~ -

01/DD NO DISCHARGE 01092 091986 0/0 CP MG/L ZINC, TOTAL (AS ZN) - ~ -

01/DD NO DISCHARGE KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow: 30000 GPD ND = none detected Discharg 1B2 B Mon Loc: 1 STEAM ELECTRIC POWER PLNT Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00310 091986 0/0 CP MG/L BOD 5 DAY (20 DEG C) -

01/DD NO DISCHARGE 01027 091986 0/0 CP MG/L CADMlUM, TOTAL (AS CD) - 01/DD NO DISCHARGE  !

00335 091986 0/0 CP MG/L CHEMICAL OXYGEN DEMAND -

01/DD NO DISCHARGE 01034 091986 0/0 CP MG/L CHROMlUM, TOTAL (AS CR) -

01/DD NO DISCHARGE

~ ~

F 77666 120192 0/1 CP MG/L CITRIC ACID WHOLE WATER - 01/DD NO DISCHARGE l i

, 01042 091986 0/0 CP MG/L COPPER, TOTAL (AS CU) -

01/DD NO DISCHARGE l

c 78151 120192 0/1 CP MG/L EDTA -

01/DD NO DISCHARGE Page 21

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - Descharge Monitoring Report (DMR) 4 KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 30000 GPD ND = none detected Discharg 1B2 B Mon Loc- 1 STEAM ELECTRIC POWER PLNT Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00164 120192 Ol1 I GPB FLOW, GALLONS / BATCH - 01/DD NO DISCHARGE

~ ~

77006 120192 0/1 CP MG/L FORMIC ACID WHOLE WATER -

01/DD NO DISCHARGE 00139 091986 0/0 CP MG/L HYDROGEN PEROXIDE -

01/DD NO DISCHARGE 01045 091986 0/0 CP MG/L IRON, TOTAL (AS FE) ~ - 01/DD NO DISCHARGE

~ ""*

01051 091986 0/0 CP MG/L LEAD, TOTAL (AS PB) -

01/DD NO DISCHARGE 01067 091986 0/0 CP MG/L NICKEL. TOTAL (AS NI) -

01/DD NO DISCHARGE 00556 120192 0/1 G MG/L OIL & GREASE FREON EXTR -

01/DD NO DISCHARGE i

- ~

77081 120192 0/1 CP MG/L OXAllC ACID -

01/DD NO DISCHARGE '

i 00400 091986 0/0 RC SU PH - -

01/DD NO DISCHARGE  ;

00530 091986 0/0 CP MG/L SOLIDS. TOTAL SUSPENDED - 01/DD NO DISCHARGE f

01092 091986 0/0 CP MG/L ZINC, TOTAL (AS ZN) -

01/DD NO DISCHARGE ,

KEY: CT0003263 Issue: 121492 Expire: 12/14/97 Sample Month March 1997 l t

Avera9e Flow- 144000 GPD ND = none detected .

Discharg IC1 A Mon Loc: 1 BLOWDOWN FR HEAT & COOL Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5

""* ~

i 00164 120192 0/1 1 GPB FLOW, GALLONS / BATCH -

01/DD NF NF NF NF 81313 120192 0/1 G MG/L HYDRAZINE -

01/DD NF NF NF NF Page 22

STATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - Descharge Monitoring Report (DMR)

KEY: CT0003263 issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 40000 GPD ND = none detected Descharg 1C6 A Mon Loc: 1 WATER PRODUCTION WASTEWTR Sample Weeks- -

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 00310 091986 0/0 CP MG/L BOD 5 DAY (20 DEG C) -

01/DD NO DISCHARGE i

01027 091986 0/0 CP MG/L CADMlUM, TOTAL (AS CD) - -

01/DD NO DISCHARGE 00335 091986 0/0 CP MG/L CHEMICAL OXYGEN DEMAND -

01/DD NO DISCHARGE 01034 091986 0/0 CP MG/L CHROMlUM, TOTAL (AS CR) -

01/DD NO DIGCHARGE 77666 120192 0/1 CP MG/L CITRIC ACID WHOLE WATER -

01/DD NO DISCHARGE 01042 091986 0/0 CP MG/L COPPER, TOTAL (AS CU) -

01/DD NO DISCHARGE 78151 120192 0/1 CP MG/L EDTA ""* - -

01/DD NO DISCHARGE 00164 120192 Ol1 I GPB FLOW, GALLONS / BATCH - 01/DD NO DISCHARGE i 77006 120192 0/1 CP MG/L FORMIC ACID V+10LE WATER -

01/DD NO DISCHARGE 00139 091986 0/0 CP MG/L HYDROGEN PEROXIDE -

01/DD NO DISCHARGE 01045 091986 0/0 CP MG/L IRON, TOTAL (AS FE) -

01/DD NO DISCHARGE 01051 091986 0/0 CP MG/L LEAD, TOTAL (AS PB) - 01/DD NO DISCHARGE 01067 091986 0/0 CP MG/L NICKEL, TOTAL (AS NI) -

01/DD NO DISCHARGE 00556 120192 Ol1 G MG/L OIL & GREASE FREON EXTR -

01/DD NO DISCHARGE 77081 120192 0/1 CP MG/L OXALIC ACID -

01/DD NO DISCHARGE 00400 091986 0/0 RC SU PH -

01/DD PC DISCHARGE 00530 091986 0/0 CP MG/L SOLIDS, TOTAL SUSPENDED -

01/DD NO DISCHARGE 01092 091986 0/0 CP MG/L ZINC, TOTAL (AS ZN) -

01/DD NO DISCHARGE Pa9e 23

GTATE OF CONNECTICUT " DEPARTMENT OF ENVIRONMENTAL PROTECTION Bureau of Water Management - Discharge Monitoring Repott (DMR)

KEY: CT0003263 Issue: 121492 Expire: 12/14/97 Sample Month March 1997 Average Flow- 72000 GPD ND = none detected Discharg IC6 B Mon Loc 1 BLOWDOWN FR HEAT & COOL Sample Weeks:

Code Start s/m Typ Unit Parameter Min. Ave. Max. Freq 1 2 3 4 5 GPD FLOW RATE, AVERAGE DAILY "*** ""*

00056 120192 0/1 T 3510 01/07 2800 2840 3130 3510 3070 Weekly max. see Table 5 81313 091986 0/0 CP MG/L HYDRAZINE 92 01/07 71 92* 56 62 53 Weekly max. see Table 5 00011 120192 0/1 G DEG TEMPERATURE DEG FAHR 195 01/07 188 190 190 195 188 Weekly max. see Table 5 COMMENTS:

  • Permit exceedance, see Results and Discussion.

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l Page 24 i

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PERMIT: CT0003263 DIST: 12 TOWN: 152 LOC:003 ,

FACILITY: MILLSTONE NUCLEAR POWER STA. MAILING NAME: NORTHEAST NUCLEAR ENERGY CO.

ADDRESS: RTE 156 ADDRESS: P. O. BOX 270

~

CITY, STATE, ZIP: WATERFORD, CT 06385 CITY, STATE, ZIP: HARTFORD, CT 06101 CONTACT: MR. PAUL JACOBSON CONTACT: MR. PAUL JACOBSON i

PHONE- (860) 447-1791 Ext. 2335 PHONE: (860) 447-1791 Ext. 2335 i If there are any changes or conections with your facility information, please cross out incorTect information and replace with correct information.  !

l f

THIS DMR CONSISTS OF 25 PAGES FOR THE REPORTING PERIOD March 1997 STATEMENT OF ACKNOWLEDGEMENT f I certify under penalty of law that this documerd is identical in format and content to the preprinted Discharge Monitoring Report '

wlwch I received from the Departmerd of Environmental Protection on: 12/22/95 I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance j with a system designed to assure that qualified personnel property gather and evaluate the information submitted. Based on my l inquwy of the person or persons who manage the system, or those persons detectly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate and complete. I am aware that there are significard  !

penalties for submittmg false information, wx:luding the possetMty of fine and impnsonment for knowmg violations t

Authorized Official: S. E. Scace

Title:

Dwector - Nuclear Ers;r.;;. irs Programs t

Signature: . cm Date: Y/8o!97 i

i Page 25  ;

CILLSTONE STATION / ALL UNITS MONTMLY WATER QUALITY DATA SLpeqARY / DISCMARGE SERIAL NUMBER 001 DATA PERIOD = 1 MAR 97/0000 - 31 MAR 97/2345 DAT4 ACoutSITION INTERVAL = MINUTES 00-15 0F EACH NOUR DAY PN RANGE FLOW RANGE MAX MIN AVG SDEV MAX MIN AVG SDEV MAX HL MIN HL AVG HL SD HL MRC ML MAX MIN AVG TEW TEMP TEF TEMP DEL T DEL T DEL T DEL T 1 8.2- 8.1 772 54 505 40.5 39.7 40.2 0.2 2.0 1.2 1.7 0.2 74 7.4 37.1 424.4 234.7 366.2 2 8.1- 8.1 322 316 317 40.8 40.2 40.5 0.2 2.0 1.4 1.7 0.2 314.7 232.1 276.8 26.2 51.5 3 8,1- 8.0 328 316 319 40.8 40.3 40.6 0.1 2.2 1.8 2.0 0.1 356.3 291.6 321.0 19.5 22.4 4 8.1- 8.1 340 66 316 40.5 40.3 40.4 0.1 2.3 1.9 2.1 0.1 375.6 66.9 327.7 63.4 -247.6 5 8.2- 8.1 66 66 66 40.9 40.3 40.7 0.2 2.3 2.1 2.2 0.1 77.3 69.9 74.0 2.1 -7.4 6 8.1- 8.1 67 66 66 41.8 40.9 41.4 0.3 2.5 1.6 2.2 0.2 83.6 54.0 71.9 8.0 -10.9 7 8.1- 8.0 66 66 66 41.9 40.5 41.2 0.4 3.6 1.3 2.6 0.6 117.2 42.3 87.4 19.6 16.7 8 8.1- 8.0 370 66 243 41.5 40.5 40.8 0.3 3.1 1.7 2.3 0.4 553.6 57.1 282.4 184.9 422.4 9 8.1- 8.0 66 66 66 40.9 39.7 40.4 0.4 2.9 1.7 2.1 0.4 95.4 55.3 70.9 12.1 17.5 10 8.1- 8.1 66 66 66 41.6 39.2 40.9 0.6 3.0 0.5 2.1 0.7 99.9 16.0 70.3 23.6 -29.0 11 8.1- 8.0 66 66 66 42.0 40.9 41.3 0.3 2.8 2.2 2.5 0.2 92.0 73.4 83.2 5.5 -11.6 12 8.1- 8.0 66 66 66 41.9 40.8 41.3 0.3 3.3 2.3 2.7 0.3 110.1 76.0 88.6 9.6 -11.9 13 8.1- 8.0 339 66 213 41.1 39.8 40.4 0.4 3.0 1.8 2.4 0.4 486.9 60.5 268.9 179.8 -257.7 14 8.1- 8.0 66 66 66 40.4 39.6 40.0 0.2 2.4 2.0 2.2 0.1 78.8 64.5 73.4 4.6 -7.3 15 8.1- 8.0 522 66 395 40.9 40.2 40.5 0.2 2.8 1.5 2.1 0.4 703.4 69.3 398.3 197.9 611.1 16 8.1- 8.0 68 66 66 40.9 40.1 40.5 0.3 3.2 2.1 2.7 0.3 106.7 69.6 90.4 10.8 11.3 17 8.1 8.0 195 66 77 41.5 40.2 40.9 0.4 3.6 2.9 3.3 0.2 299.0 98.2 123.4 52.2 198.7 18 8.1- 8.0 328 66 237 40.7 40.1 40.3 0.2 2.8 1.5 2.1 0.5 456.0 49.6 267.2 168.2 -204.0 17 8.1- 8.1 66 66 66 41.5 40.1 40.9 0.4 2.9 1.8 2.5 0.3  %.2 59.5 82.2 10.1 -18.1 I 20 8.1- 8.1 78 66 66 41.3 40.9 41.1 0.1 3.2 2.6 3.0 0.2 117.4 86.7 98.5 6.9 -15.4 21 8.1- 8.0 370 66 91 42.0 40.4 41.2 0.5 3.0 2.1 2.6 0.3 403.5 69.2 112.1 86.7 333.7 22 8.1- 8.1 457 3 70 3 74 41.4 40.8 41.1 0.1 2.3 1.6 1.9 0.2 417.8 304.8 346.3 30.0 54.4 23 8.2- 8.0 907 631 764 40.8 40.3 40.6 0.2 2.5 1.4 2.0 0.3 1141.3 493.1 768.3 205.4 308.3 24 8.2- 8.1 632 619 628 40.8 40.1 40.5 0.2 2.7 1.0 1.9 0.5 840.9 299.3 598.2 155.9 -169.8 25 8.2- 8.0 621 316 594 41.1 40.4 40.7 0.2 2.2 1.5 1.8 0.2 670.1 276.4 527.9 90.7 -254.9 26 8.2- 8.0 318 313 316 42.1 41.1 41.6 0.3 2.1 1.3 1.7 0.2 324.6 211.2 261.8 26.7 60.2 27 8.2- 8.0 316 313 316 42.0 41.5 41.8 0.2 2.2 0.7 1.7 0.5 355.2 106.5 276.1 83.8 -101.5 28 8.2- 8.1 305 303 304 42.7 41.8 42.1 0.3 1.9 0.7 1.5 0.4 295.9 104.4 231.9 57.5 -50.1 29 8.2- 8.1 912 303 560 42.7 42.2 42.5 0.1 1.9 1.1 1.5 0.2 6 72.5 166.1 425.6 174.7 -430.4 30 8.2- 8.1 912 303 560 42.7 42.2 42.5 0.1 1.9 1.1 1.5 0.2 672.5 166.1 425.6 174.7 -430.4 31 8.2- 8.1 912 303 560 42.7 42.2 42.5 0.1 1.9 1.1 1.5 0.2 6 72.5 166.1 425.6 174.7 -430.4 MON 8.2- 8.0 912 54 253 42.7 39.2 41.0 0.7 3.6 0.5 2.2 0.5 1141.3 16.0 244.1 202.1 611.1 PH RANGE = LOWEST AND HIGNEST PM AT GUARRY CUT (PH UNITS)

FLOW RANGE = LOWEST AND NIGMEST FLOW FROM QUARRY CUT (10**3 GAL / MIN)

MAX TEMP = MAXIMUM TEMPERATURE AT DISCHARGE AREA (DEG F)

E'IN TEMP = MINIMUM TEMPERATURE AT DISCHARGE AREA (DEG F)

AVG TEMP = AVERAGE TEMPERATURE AT DISCMARGE AREA (DEG F)

SDEV TEMP = STANDARD DEVIATION OF TEMPERATURE AT DISCMARGE AREA (DEG F)

MAX DEL T = MAXIMUM TEMPERATURE INCREASE BETWEEN INTAKE AND QUARRY CUT (DEG F)

MIN DEL T = MINIMUM TEMPERATURE INCREASE BETWEEN INTAKE AND QUARRY CUT (DEG F)

AVG DEL T = AVERAGE TEMPERATURE INCREASE BETWEEN INTAKE AND QUARRY CUT (DEG F) '

SDEV DEL T = STANDARD DEVIATION OF TEMPERATURE INCREASE BETWEEN INTAKE AND QUARRY CUT (DEG F)

MAX HL = MAXIMUM MEAT LOAD OF DISCHARGE WATER (10**6 STU/NR)

CI 3 ML = MINIMUM NEAT LOAD OF DISCHARGE WATER (10**6 BTU /NR)

AVG NL = AVERAGE MEAT LOAD OF DISCMARGE WATER (10**6 8TU/NR)

SD HL = STANDARD DEVIATION OF MEAT LOAD OF DISCHARGE WATER (10**6 8TU/NR)

MRC ML = MAXIMUM RATE OF CHANGE OF HEAT LOAD (NL FOR QUARTER NOUR T MINUS HL FOR QUARTER HOUR T-1/ QUARTER HOUR) (10**6 BTU /NR**2)

        • MEANS MISSING OR INSUFFICIENT DATA (LESS TMAN 12 MRS/th *)F VALID MOURLY DATA; LESS THAN 360 HRS / MONTH OF VALID NOURLY DATA)

TABLE 1, Page 2 , ,

MILLST-ONE STATION / ALL UNITS i

MONTNLY WATER QUALITY DATA SuppIARY / DISCMARGE SE%IAL NUMBER 001 ERCEPTION REPORT FOR MAMimmt TEMPERATURE DIFFERENCE FRON INTAKE AREA TO QUARRY CUT GREATER TNAN 32 DEG F NOME EXCEPTION REPORT FOR MANIMUM QUARRY TEINTRATURE GREATER TMAN 105 DEG F P

EXCEPTION REPORT FOR PM AT GUARRY CUT LESS TNAN 6.0 OR GREATER TMAN 9.0 PN UNITS NONE s

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TABLE 1. Pcgn 3 , ,

CILLSTONE STATION / UNIT 1 MDNT ALY WATER QUALITY D ATA SupW44RY / DISCHARGE SE21AL NUMBER 001A DATA PERIOD = 1 MAR 97/0000 - 31 MAR 97/2345 DATA ACQUISITION INTERVAL = MINUTES 00-15 0F EACM MOUR DAT PM RANGE FLOW RANGE CIRC PLMP MAX MIN AVG SDEV MAX MIN AVG SDEV MAX ML MIN ML AVG ML SD ML MRC Ms.

MAX MIN AVG MAX MIN TEMP TEMP TEMP TEMP DEL T DEL T DEL T DEL T 1 7.9- 7.8 12 12 12 0 0 41.7 41.2 41.4 0.1 3.0 2.7 2.8 0.1 17.8 16.3 17.0 0.4 0.8 2 7.9- 7.8 12 12 12 0 0 42.1 41.1 41.6 0.3 3.0 2.7 2.9 0.1 18.1 16.2 17.2 0.5 1.8 3 7.9- 7.8 12 12 12 0 0 41.6 41.2 41.5 0.1 3.1 2.7 2.9 0.1 18.4 16.3 17.6 0.6 1.0 4 7.9- 7.8 24 12 12 0 0 42.2 41.0 41.3 0.3 4.0 2.7 3.0 0.3 37.1 16.1 19.0 4.4 19.2 5 7.9- 7.8 12 12 12 0 0 41.6 41.1 41.4 0.2 3.1 2.8 3.0 0.1 18.7 16.7 17.9 0.5 -1.1 4 7.9- 7.8 13 12 12 0 0 42.9 41.5 42.1 0.5 3.0 2.7 2.9 0.1 18.9 15.9 17.4 0.6 -1.7 7 7.9- 7.8 12 12 12 0 0 42.2 41.0 41.4 0.3 3.0 2.5 2.8 0.1 18.2 15.0 17.0 0.8 1.4 8 7.9- 7.8 12 12 12 0 0 41.7 41.2 41.4 0.2 3.1 2.8 2.9 0.1 18.4 16.6 17.5 0.5 1.0 9 7.9- 7.8 12 12 12 0 0 41.7 40.9 41.2 0.3 3.3 2.7 3.0 0.2 20.0 16.0 17.8 1.1 -1.8 to 7.9- 7.8 12 12 12 0 0 41.7 40.8 41.2 0.3 3.1 1.6 2.5 0.6 18.7 9.7 15.0 3.3 -8.2 11 7.9- 7.8 12 12 12 0 0 42.1 41.2 41.6 0.3 3.1 2.4 2.9 0.2 18.7 14.6 17.2 1.0 -2.3 12 7.9- 7.8 12 12 12 0 0 42.2 41.2 41.6 0.3 3.3 2.4 2.9 0.2 19.5 14.5 17.4 1.2 2.0 13 7.9- 7.7 24 12 12 0 0 41.4 40.2 40.8 0.3 3.3 2.6 2.9 0.2 38.9 15.8 18.0 4.5 20.7 15 7.9- 7.8 12 12 12 0 0 41.0 40.6 40.8 0.1 3.2 2.9 3.0 0.1 19.5 17.2 18.1 0.6 1.4 15 7.9- 7.7 12 12 12 0 0 41.7 40.9 41.3 0.3 3.1 2.5 2.9 0.1 18.6 14.9 17.2 0.8 -1.9 16 7.9- 7.7 14 12 12 0 0 41.4 40.4 40.8 0.3 3.3 2.7 3.1 0.2 21.8 16.1 18.6 1.1 3.6 17 7.9- 7.8 12 12 12 0 0 41.3 40.2 40.7 0.3 3.7 2.7 3.1 0.3 22.1 16.0 18.8 1.6 -2.2 18 7.9- 7.8 12 12 12 0 0 41.4 40.5 41.1 0.3 3.2 2.4 2.8 0.2 18.8 14.7 17.0 1.4 1.2 17 7.9- 7.8 12 12 12 0 0 41.6 41.0 41.3 0.2 3.1 2.3 2.9 0.2 18.6 13.5 17.2 1.3 1.6 ,

20 7.9- 7.8 24 12 12 0 0 41.4 41.0 41.2 0.1 3.1 2.9 3.0 0.1 34.5 17.2 18.6 3.4 -16.6 21 8.0- 7.7 12 12 12 0 0 42.3 41.0 41.5 0.5 3.5 2.4 2.9 0.3 21.0 14.5 17.3 1.9 -3.2 22 7.9- 7.8 12 12 12 0 0 42.3 41.7 42.0 0.2 2.9 2.7 2.8 0.1 17.5 16.1 16.7 0.4 -1.1 23 7.9- 7.8 12 12 12 0 0 41.9 40.8 41.4 0.4 3.3 2.5 2.8 0.2 19.7 15.2 17.0 1.1 2.2 24 8.0- 7.8 12 12 12 0 0 41.7 40.3 41.1 0.4 3.2 1.8 2.5 0.4 18.9 11.0 14.8 2.4 -2.6 25 8.0- 7.8 12 12 12 0 0 41.6 40.9 41.3 0.2 2.7 2.1 2.3 0.1 16.0 12.8 14.0 0.8 1.7 26 7.9- 7.8 14 12 12 0 0 42.5 41.4 42.1 0.3 2.3 1.9 2.1 0.1 15.8 11.5 12.8 0.9 -3.0 27 8.0- 7.8 12 11 12 0 0 42.6 41.5 41.9 0.4 2.1 1.3 1.9 0.3 12.8 8.1 11.3 1.6 -2.8 .

28 7.9- 7.8 0 0 0 0 0 46.5 41.8 43.9 1.5 5.2 1.7 3.3 1.1 0.1 0.0 0.0 0.0 -0.1 29 7.9- 7.8 0 0 0 0 0 47.0 42.3 44.3 1.8 6.1 0.9 3.4 1.8 0.0 0.0 0.0 0.0 0.0 30 7.9- 7.9 12 12 12 0 0 43.0 43.0 43.0 0.0 6.1 0.9 3.4 1.8 0.0 0.0 0.0 0.0 0.0 31 7.9- 7.9 12 12 12 0 0 43.0 43.0 43.0 0.0 6.1 0.9 3.4 1.8 0.0 0.0 0.0 0.0 0.0 MON 8.0- 7.7 24 0 11 0 0 47.0 40.2 41.6 0.9 6.1 0.9 2.8 0.6 38.9 0.0 15.5 4.9 20.7 PN RANGE = LOWEST AND MICMEST PM AT DISCMARGE STRUCTURE (PM UNITS)

FLOW RANGE = LOWEST AND MIGMEST FLOW FROM DISCMARGE STRUCTURE (10**3 GAL / MIN)

CIRC PUMP = LOWEST AND HIGNEST NUMBER OF CIRC PUMPS OPERATING MAX TEMP = MAXIMUM TEMPERATURE AT DISCHARGE STRUCTURE (DEG F)

MIN TEMP = MINIMUM TEMPERATURE AT DISCHARGE STRUCTURE (DEG F)

AVG TEMP = AVERAGE TEMPERATURE AT DISCMARGE STRUCTURE (DEG F)

SDEV TEMP = STANDARD DEVIATION OF TEMPERATURE AT DISCMARGE STRUCTURE (DEG F)

MAX DEL T = MAXIMUM TEMPERATURE INCREASE BETWEEN INTAKE AND DISCMARGE (DEG F)

KIN DEL T = MIN! MUM TEMPERATURE INCREASE BETWEEN INTAKE AND DISCHARGE (DEG F)

AVG DEL T = AVERAGE TEMPERATURE INCREASE BETWEEN INTAKE AND DISCHARGE (DEG F)

SDEV DEL T = STANDARD DEVIATION OF TEMPERATURE INCREASE BETWEEN IMTAKE AND DISCHARGE (DEG F)

MAX ML = MAXIMUM MEAT LOAD OF DISCHARGE WATER (10**6 BTU /MR)

MIN ML = MINIMUM MEAT LOAD OF DISCHARGE WATER (10**6 STU/MR)

AVG ML = AVERAGE HEAT LOAD OF DISCHARGE WATER (10**6 BTU /MR)

SD ML = STANDARD DEVIATION OF MEAT LOAD OF DISCHARGE WATER (10**6 BTU /MR)

MRC ML = MAXIMUM RATE OF CHANGE OF MEAT LOAD (ML FOR QUARTER MOUR T MINUS ML FOR QUARTER MOUR T-1/ QUARTER MOUR) (10**6 BTU /NR**2)

        • MEANS MISSING OR INSUFFICIENT DATA (LESS THAN 12 MRS/ DAY OF VALID MOURLY DATA; LESS THAN 360 MRS/ MONTH OF VALID MOURLY DATA) ,

__,_.._____.___m_ _ _ _ _ _ _ _ _ _ _ _ . . _ _ _ _ _ _ __ _ . . _ _ _ _ _ _ _

TABLE 1 Paga 4 , ,

KILLSTl ONE STATION / UNIT 1 MONTMLY WATE2 GUALITY DATA SuletARY / DISCHARGE SERIAL NUMBER 001A i F

J EXCEPTION REPORT FOR MAXIMUM TEMPERATURE DIFFERENCE FROM UNIT 1 INTAKE TO UNIT 1 DISCHARGE GREATER THAN 32 DEG F

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NOME t

ENCEPTION REPORT FOR MAXIMUM DISCHARGE TEMPERATURE AT UNIT 1 DISCHARGE GREATER THAN 105 DEG F NONE EXCEPTION REPORT FOR PM AT UNIT 1 DISCHARGE LESS THAN 6.0 OR GREATER TNAN 9.0 PH UNITS l

NME f i

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)

[

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l

TABLE 1. Page 5 -

  • i KILLSTONE STATION / UNIT 2 g

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MONTIILY WTER SUALITY DATA SIAOWIRY / DISCIIARGE SERIAL NUIRER 0018 .

DATA PERIOD = 1 IWIR 97/0C00 - 31 MAR 97/2345 DATA AteUISITION INTERVAL = MINUTES 00-15 0F EACM NOUR i

8AY PN RANGE FLOW a:ANGE CIRC PUNP MAK . Mle AVG SOEV IWut . MII! AVG SOEV IWUt !Il MIN R AVG E SO R Inc R MAK MIN AVG IIAN MIN: TEMP TEMP TEMP TEMP 9EL T DEL T DEL T DEL T  :

1 8.0- 7.8 274 12 159 2 0 42.3 40.1 41.1 0.8 2.7 0.4 1.3 0.9 175.8 11.5 48.5 38.2 160.8  !

2 8.0- 7.9 274 274 274 2 2 40.9 39.9 40.5 0.3 0.7 0.4 . 0.5 0.1 89.7 52.7 71.4 9.9 22.5 3' 8.0- 7.9~286 274 277 2 2 40.6 39.9 40.3 0.2 .0.6 0.2 0.5 0.1 81.8 35.6 65.5 12.1 -20.0 i 4

4 8.0- 7.9 286 24 275 2 0 (0.4 39.6 40.1 0.3 0.6 0.3 0.4 0.1 93.1 5.8 60.5 17.4 -55.1 >

5 7.9- 7.9 24 24 24 0 0 43.1 40.9 41.8 0.7 3.3 1.3 2.0 0.7 39.1 15.2 24.5 8.7 13.9 f 6 8.0- 7.9 24 24 24 0 0 43.0 41.4 42.2- 0.5 1.9 1.3 1.6 0.1 22.4 16.1 19.2 1.6 -3.3 i

. 7 8.0- 7.9 24 24 24 0 0 42.7 41.2 41.6 0.3 2.0 1.5 1.7 0.2 24.3 17.7 20.9 1.8 2.1 i' 8 7.9- 7.9 24 24 24 0 0 41.8 41.3 41.5 0.2 1.8 1.5 1.7 0.1 21.6 17.9 20.0 1.0 -1.5 9 8.0- 7.8 24 24 24 0 0 41.7 41.0 41.3 0.2' 1.9 0.8 1.6 0.2 22.5 10.0 19.3 2.6 -7.9  !

10 7.9- 7.8 24 24 24 - 0 0 41.8 40.8 41.3 0.3 2.4 1.6 1.8 0.2 28.9 18.6 22.1 2.9 -3.9 ,

11 7.9- 7.8 24 24 24 0 0 42.4 41.3 41.7 0.3 1.9 1.4 1.7 0.1 23.0 16.7 20.4 1.4 3.6  !

12 8.0- 7.8 24 24 24 0 .0 42.1 41.2 41.7 0.2 1.9 1.2 1.7 0.2 23.1 14.1 20.7 2.1 7.0 1 13 8.0- 7.8 286 24 171 2 0 41.4 38.9 40.1 0.7 1.7 0.2 1.0 0.5 120.0 7.1 55.8 40.1  %.0 ,

14 7.9- 7.8 24 24 24 0 0 41.2 40.5 40.8 0.2 1.8 1.4 1.6 0.1 22.2 16.9 19.2 1.6 2.1 i 15 7.9- 7.8 24 24 24 0 0 41.8 41.0 41.4 - 0.3 2.0 1.6 1.8 0.1 23.6 19.4 21.2 1.2 -2.1 .I 16 7.9- 7.8 24 24 24 0 0 41.4 40.6 40.9 0.2 1.9 1.4 1.6 0.1 22.3 16.8 19.7 1.6 2.6  !

17 7.9- 7.8 153 24 35 1 0 41.3 39.9 40.7 0.4 2.0 0.6 1.5 0.3 47.8 13.2 21.1 8.2 26.4 ,

, 18 7.9- 7.8 286 24 199 2 0 41.5 39.4 40.4 0.8 1.7 0.3 0.9 0.5 128.2 10.1 61.4 39.6 -106.0 i 19 7.9- 7.8 24 24 24 0 0 42.7 40.9 41.6 0.5 3.3 1.5 2.0 0.6 39.0 18.2 23.6 7.1 15.1  !

20 7.9- 7.9 24 24 24 0 0 41.6 40.7 41.2 0.3 2.1 0.9 1.6 0.3 24.9 11.2 18.7 4.1 -5.8  !

21 8.0- 7.8 24 24 24 0 0 42.4 40.8 41.5 0.5 2.0 1.3 1.6 0.2 23.7 15.1 18.7 2.3 -5.6 '

22 7.9- 7.8 111 24 28 0 0 42.5 41.7 42.0 0.2 2.0 1.4 1.7 0.1 84.3 17.4 22.6 13.2 66.9 r 23 8.0- 7.8 561 285 418 4 2 41.0 30.7 40.3 C.3 0.8 0.2 ' O.4 0.2 227.4 23.5 100.7 63.4 +112.4  !

24 8.0- 7.8 286 273 282 2 1 41.1 39.4 40.3 0.5 1.1 0.2 0.5 0.3 152.0 26.9 70.5 39.2 68.1 i 25 S.0- 7.8 275 270 274 2 1 41.1 40.2 40.6 0.3 0.7 0.1 0.4 0.1 92.2 19.3 60.2 20.3 -50.3 i 26 8.0- 7.8 274 271 274 2 1 42.3 40.9 41.7 0.4 0.7 0.3 0.5 0.1 90.2 36.4 64.7 14.4 24.0-27 8.0- 7.8 274 271 274 2 1 42.4 40.9 41.6 0.5 0.6 0.2 0.4 0.1 87.8 22.0 60.5 15.4 35.4 [

28 8.0- 7.9 274 273 274 2 1 43.1 41.4 42.1 0.5 0.8 0.2 0.5 - 0.1 109.5 28.7 72.2 19.7 50.2  !

29 8.0- 7.9 274 273 274 2 1 43.3 42.0 42.5 0.4 0.6 0.0 0.4 0.1 84.5 0.0 57.3 20.3 62.3 t 30 8.0- 8.0 286 286 286 2 2 43.0 41.9 42.3 0.5 2.0 0.0 0.5 0.6 283.8 0.0 77.4 92.5' 154.8 31 8.0- 8.0 206 286 286 2 2 41.9 41.2 41.7 0.3 0.0- 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NON 8.0- 7.8 561 12 142 4 0 43.3 38.9 41.2 0.8 3.3 0.0 1.2 0.7 283.8 0.0 40.5 34.3. 160.8 i

PN RANGE = LCEST AND MIGREST PN AT DISCNARGE STRUCTURE (PN UNITS) ~

FLOW CANE = LOWEST Als MIGNEST FLOW FROM DISCIIARGE STRUCTURE (10**3 GAL / MIN) j CIRC PLSF = LOEST Alm MIGIEST IR5eEd 0F CIRC PtpFS OPERATING IWut TEIP = ItutIIRNI TEIFERATWE AT DISCNARE STRUCTURE (DEG F)

CI3 TEIF = MININUM TEMPERATURE AT DISCNARGE STRUCTURE (DEG F)

AVG TEIF = AVERAE TEIFERAftRE AT DISCIIARE STRUCTURE (DEG F)

WEV TEIF = STAISARD DEVIATION OF TEIFERATURE AT DISCIIARGE STRUCTURE (DEG F)

ImX DEL T = HANIstst TEMPERATURE INCIIEASE SETWEN INTAKE AIS DISCIIARGE (DEG F)

, Cl3 DEL T = MINIItsi TEMPERATURE IIICREASE BETWEll INTAKE AIS DISCMARGE (DEG F)

AVG DEL T = AVERAGE TEMPERATURE IIICIIEASE SETWESI INTAIE AIS DISCIIARGE (DEG F)

SDEV DEL T = STAIWARD DEVI ATION OF TEIFERATURE INCREASE SETWEN INTAKE Als DISCHARGE (DEG F) 7

, IIAN IIL = IWullIR31 IIEAT LOAD OF DISCIIARE WTER (10**6 STU/HR) l Cl3 IIL = MINIIRSI NEAT LOAD OF DISCIIARE WTER (10"6 BTU /IIR) t AVG NL = AVERAE HEAT LOAD OF DISCIIARE WTER (10**6 STU/IIR)

SD IIL = STAISARD DEVIATION OF IIEAT LOAD OF DISCHARGE UATER (10**6 BTU / Int)

INIC IIL = IIANINUM RATE OF CHAIIGE OF MEAT LORD (HL FOR QUARTER IIOUR T MIIIUS IIL F0lt GUAltTER IIOUR T-1/00ARTER IIOUR) (10**6 STU/lut**2) [

        • IEAllS MISSlHG OR INSUFFICIENT DATA (LESS THAN 12 IIRS/ DAY OF WALID IIOURLY DATA; LESS TIIAll 360 IIRS/MOIITN OF VALIO IIOURLY DATA) i

TABLE 1, Peg 2 6 *

  • EILLST '

ONE STATION / UIIIT 2 MONTMLY ETER QUALITY DATA SUIW WtY / DISCMARGE SERIAL NUNBER 0015 i

4 EXCEPTION RE*0RT FOR OWutIORM TEMPERATURE DIFFEREleCE FRON UNIT 2 INTAKE TO UNIT 2 DISCHARGE GREATER TMAN 32 DEG F ,

A EXCEPT1011 REPORT FOR MAMIIRm DISCMARGE TEMPERATURE AT UNIT 2 OISCHARGE GREATER THAN 105 DEG F 1

EXCEPTION REPORT FOR PM AT UNIT 2 DISCHARGE LESS TNAN 6.0 OR GREATER THAN 9.0 PM UIIITS h

--- - - - - - - - - - -, - ---w-- - -------m- ._-- --- - . _ - - - -- - - . - - . . - - _ - - - - _ - - - - - - - - - -----------a,------- - - - - , , - - _ , - - . - _ - - - - - . . . - - - - __--_--.--__-__----__u---,,,-- - - , - - - - - --- -_-. . - _----a- , -.- - - . - - - -

TABLE 1, Pags 7

  • CILLSTONE STATION / UNIT 3 MONTMLY W TER GUALITY DATA SupetARY / DISCllARGE SERIAL NUMBER 001C DATA PERIOD e 1 MAR 97/0000 - 31 MAR 97/2345 DATA ACQUISITION INTERVAL = MINUTES 00-15 0F EACM NOUR DAT Pil RANGE FLOW RANGE CIRC PUpr MAX MIN AVG SDEV MAX MIN AVG SOEV MAX R MIN R AVG NL SO NL MRC R IIAX MIN AVG ftAN MIN TEMP TEMP TEMP TEMP DEL T DEL T DEL T DEL T 1 8.2- 8.1 486 30 334 3 0 40.7 39.5 39.9 0.5 1.1 0.0 0.2 0.4 15.8 0.0 4.0 5.9 -11.4 2 8.1- 8.1 36 30 30 0 0 41.2 40.5 40.7 0.2 1.1 0.6 0.8 0.1 15.9 8.4 12.0 2.2 -5.3 3 8.1- 8.1 30 30 30 0 0 41.3 40.5 40.8 0.1 1.4 0.8 1.0 0.1 21.0 12.6 15.1 2.2 -5.8 l 4 8.1- 8.1 30 30 30 0 0 40.8 40.4 40.6 0.1 1.3 0.7 1.0 0.2 20.2 10.7 14.3 2.7 6.0 5 8.1- 8.1 30 30 30 0 0 40.9 40.6 40.7 0.1 1.2 0.8 0.9 0.1 18.4 11.7 13.9 1.6 3.7 -

6 8.2- 8.1 30 30 30 0 0 42.1 40.8 41.4 0.5 1.1 0.6 0.8 0.1 16.7 9.4 12.1 1.7 4.4 7 8.3- 8.0 30 30 30 0 0 41.3 40.3 40.7 0.2 1.1 0.4 0.9 0.2 17.2 6.0 13.6 2.7 6.5 t 8 8.I- 8.0 334 30 207 2 0 40.7 39.5 40.0 0.5 1.0 0.0 0.3 0.4 15.5 0.0 4.9 6.7 -15.3 9 8.2- 8.0 30 30 30 0 0 41.0 40.3 40.7 0.2 1.3 0.1 1.0 0.2 19.6 2.1 14.8 3.6 -10.6  :

10 8.1- 8.1 30 30 30 0 0 40.9 40.2 40.5 0.2 1.3 0.8 1.0 0.1 19.5 12.5 15.6 1.8 3.9 11 8.1- 8.1 30 30 30 0 0 41.3 40.7 41.0 0.2 1.1 0.5 0.9 0.1 16.7 8.2 13.9 1.8 7.7 12 8.2- 8.0 30 30 30 0 0 41.9 40.7 41.0 0.3 1.7 0.4 1.0 0.3 24.9 6.3 15.6 3.8 -18.6 13 8.1- 8.1 30 30 30 0 0 40.9 39.9 40.3 0.3 1.7 0.7 1.2 0.2 25.9 10.7 17.5 3.5 -8,5 8 14 8.1- 8.1 . 30 30 30 0 0 40.5 40.2 40.3 0.1 1.6 0.7 1.1 0.2 24.2 11.2 15.9 3.1 -8.8 3 15 8.1- 8.1 486 30 359 3 0 40.3 38.8 39.7 0.4 1.2 0.0 0.2 0.4 28.5 0.0 6.6 9.5 28.5 16 8.1- 8.0 30 30 30 0 0 41.2 40.4 40.8 0.2 2.3 0.6 1.6 0.3 33.8 8.4 24.0 4.3 12.5 17 8.1- 8.1 30 30 30 0 0 40.9 40.2 40.6 0.2 1.8 1.1 1.4 0.2 26.5 16.1 21.0 2.9 -6.0  ;

0 41.2 40.0 40.5 0.3 0.7 0.2 '

18 8.1- 7.9 30 30 30 0 1.5 1.0 22.4 10.9 15.0 3.2 -8.1 19 8.1- 8.1 30 30 30 0 0 40.8 40.4 40.6 0.1 1.2 0.7 0.9 0.1 17.4 11.1 13.9 1.9 -5.3 20 8.1- 8.1 30 30 30 0 0 41.3 40.4 40.6 0.2 1.6 0.7 0.9 0.2 23.9 10.3 13.8 3.1 -12.5 21 8.2- 8.1 334 30 55 2 0 41.8 40.1 40.9 0.5 1.4 0.0 0.9 0.3 163.1 0.0 19.9 30.8 -163.1 22 8.1- 8.1 334 334 334 2 2 40.4 40.0 40.2 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 '

23 8.2- 8.1 334 334 334 2 2 40.4 39.6 39.9 0.2 0.5 0.0 0.1 0.1 80.0 0.0 11.5 21.7 60.5 2 40.3 39.3 39.8 0.3 0.5 0.0 0.1 0.1 78.5 0.0 14.0 -78.5 '

24 8.2- 8.1 334 334 334 2 23.1 25 8.2- 8.1 334 30 309 2 0 40.8 39.7 40.1 0.3 0.2 0.0 0.0 0.1 25.0 0.0 1.6 5.3 -25.0 +

26 8.1- 8.1 30 30 30 0 0 42.3 41.2 41.9 0.4 1.6 0.3 0.7 0.3 23.4 4.2 10.0 3.8 -14.0 r 27 8.2- 8.1 30 30 30 0 0 42.3 41.3 41.8 0.3 1.1 0.0 0.7 0.3 16.5 0.0 9.8 5.2 8.7 28 8.2- 8.1 30 30 30 0 0 42.9 41.8 42.3 0.4 1.1 0.1 0.7 0.3 16.1 1.6 10.7 4.4 7.4  !

29 8.2- 8.1 638 30 233 4 0 43.2 41.3 42.1 0.6 1.0 0.0 0.2 0.3 14.9 0.0 2.3 5.0 -14.9 30 8.2- 8.1 30 M 30 0 0 43.1 42.1 42.5 0.3 1.5 0.3 0.6 0.4 22.1 5.0 9.6 5.5 -15.2 31 8.1- 8.1 30 30 30 0 0 43.2 42.6 42.9 0.1 1.3 0.8 1.1 0.1 18.8 12.3 16.4 2.0 -2.1 MON 8.3- 7.9 638 30 102 4 0 43.2 38.8 40.8 0.9 2.3 0.0 0.7 0.5 163.1 0.0 12.4 10.3 -163.1 Pfl RA28GE = LO E ST AND NIGNEST Pit AT DISCNARGE STRUCTURE (PM UNITS) .

FLOW RANGE = LOWEST AND MIGNEST FLOW FROM DISCMARGE STRUCTURE (10**3 GAL / MIN)

CIRC I45EP = LOWEST AIS NIGNEST NUpWER OF CIRC PLNIPS OPERATING j MAX TEMP = MANIftst TE9EPERATURE AT DISCNARGE STRUCTURE (DEG F)

CI3 TEMP = MINIIENE TEMPERATURE AT DISCNARGE STRUCTURE (DEG F)

AVG TEMP = AVERAGE TEMPERATURE AT DISCIIARGE STRUCTURE (DEG F)

SDEV TEMP = STANDARD DEVIATION OF TEMPERATURE AT DISCllARGE STRUCTURE (DEG F)

MAN DEL T = IIAXIIRBI TEMPERATURE INCREASE BETWEN INTAKE Als DISCHARGE (DEG F)

CI2 DEL T = MINIMUM TEMPERATURE INCREASE BETWEll INTAKE AaB DISCNARGE (DEG F)

LVG DEL T = AVERAGE TEMPERATURE INCREASE BETWEEh INTAKE AND DISCNARGE (DEG F)

SOEV DEL T = STANDARD DEVI ATION OF TEMPERATURE INCREASE BETWEEN INTAKE AND DISCIIARGE (DEG F)  !

IEAX K = IIANIIEBI IIEAT LOAD OF DISCNARE WTER (10**6 STU/NR)

EI2 IIL = MINIORAI MEAT LOAD OF DISCNARGE WTER (10**6 STU/IIR)

AVG E = AVERAGE IEEAT LOAD OF DISCNARGE WTER (10**6 BTU /lut) i 50 K = STANDARD DEVIATION OF IIEAT LOAD OF DISCHARGE W TER (10**6 BTU /NR) j sqRC E = sqAXIMUM RATE OF CHAlfGE OF NEAT LOAD (R FOR QUARTER IIOUR T MINUS E FOR QUARTER NOUR T-1/GUARTER MOUR) (10**6 BTU /MIt**2)

        • IEEAsis filSSIIIG OR INSUFFICIENT DATA (LESS TIIAII 12 IIRS/ DAY OF VALID lt0URLY DATA; LESS THAN 360 IntS/MONTN OF VALID NOURLY DATA) ,

t l

_ - _ _ - - - _ _ _ _ - - - _ - - _ . _ _ - - - - _ _ _ _- _ - _ - _ - _ _ _ _ _ _ _ _ _ - . _ _ _ _ _ _ _ _ _ - - _ _ - _ _ - - _ _ _ _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ = _ _ . _ _ - . . - _ _ _ _ _ _ _ - _ . _ . --

TABLE 1, Pcga B .

tlLLST ogE STATION / UNIT 3 MONTHLY WATER QUALITY DATA SupM4ARY / DISCMARGE SERIAL NUNDER 001C EXCEPTION REPORT FOR MAXIMUM TEMPERATURE DIFFERENCE FROM UNIT 3 INTAKE TO UNIT 3 DISCMARGE GREATER THAN 24 DEG F NOME EXCEPTION REPORT FOR MAXIMUM DISCMARGE TEMPERATURE AT UNIT 3 DISCHARGE GREATER TNAN 96 DEG F NOME EXCEPTION REPORT FOR PM AT UNIT 3 DISCNARGE LESS TNAN 6.0 OR GREATER THAN 9.0 PM UNITS NONE l

__ _ _ _ . - m _. _ _ ._ _ _ . _ _ . - _ . _ . _ . _ . _ _ _ _ . _ . - . _ _ _ . _ . _ . _ . _

TABLE 2  ;

.t MILLSTONE STATION I DMR Attached Reporting Month: March 1997 The following reporting will be done to accurately reflect the permit:

1). Loadings and. concentrations within permit limits will not be reported as an exceedance where the DMR forms lists incorrect values.

j 2) Parameter blanks not required by the permit will- be marked-N/A.

3) Parameter reporting not shown on the DMR forms, but required by the permit will be listed in this attachment.

l DSN 001 l Flow is permitted as maximum 2,738,000,000 gpd. However, this l flow is an average flow value which was defined. in the l previous permit. The renewed permit changed flow nomenclature to maximum and as such flow will exceed the limit in most months. This problem is being addressed through permit modification, and is not being' reported as an exceedance.

l l

DSN 001A Flow is permitted as maximum 604,800,000 gpd. However, this '

flow is an average flow value which was defined in' the previous permit. The renewed permit changed flow nomenclature to maximum and as such flow will exceed the limit in most months. This problem is being -addressed through permit modification, and is not being reported as an exceedance.

DSN 001A-4 The following parameters are not included on the DMR forms:

Boric acid: Code 9 mg/l (weekly grab', 574 mg/l max)

Boric acid: Code 9 kg/ day (weekly grab, 7.6 kg/ day max)

DSN 001B Flow is permitted as maximum 820,000,000 gpd. However, this flow is an average flow value which was defined in the 'j 1

previous permit. The renewed permit changed flow nomenclature i to maximum and as such flow will exceed the limit in most months. This problem is being addressed through permit modification, and is not being reported as an exceedance. l DSN 001B-1 l' The following parameters are not included on the DMR forms:

i f Ethanolamine: No Discharae mg/l (weekly grab, 10.0 mg/l max) i j l

Millstono DMR s Tcblo 2 Page 2 DSN 001B-1 (a)

The following parameters are not included on the DMR forms:

Ethanolamine: No Discharae mg/l (daily grab, 5.0 mg/l max)

DSN 001B-2 i The DMR form has an average TSS limit of 30.0 mg/1. This is not in the permit.

DSN 001B-2 (b)

The following parameters are not included on the DMR forms:

Nitric acid: No Discharoe mg/l (daily comp.)

Permanganate: No Discharoe mg/l (daily comp.)

DSN 001B-3 The DMR form has an average TSS limit of 15.0 mg/1, and a maximum TSS limit of 30.0 mg/1. This is inconsistant with the permit which has only a maximum TSS limit of 22.5 mg/1.

DSN 001B-6 The following parameters are not included on the DMR forms:

Ethanolamine: 0.5 kg/ batch (weekly grab, 230 kg max) l DSN 001B-7 The DMR form has a maximum chlorine loading limit of 5.46 kg/ day. This is inconsistant with the permit which does not have a chlorine loading limit.

DSN 001B-8 The following parameters are not included on the DMR forms:

Ethanolamine: No Discharoe mg/l (daily grab, 230 mg/l max)

DSN 001C '

Flow is permitted as maximum 1, 313 , 200, 000 gpd . However, this ,

flow is an average flow value which was defined in the '

previous permit. The renewed permit changed flow nomenclature to maximum and as such flow will exceed the limit in most months. This problem is being addressed through permit modification, and is not being reported as an exceedance. '

A reporting block for Pimenhales cromelas toxicity testing is on the DMR form but is not required by the permit.

Milletono DMR I

Tabla 2 l

., Page 3 l DSN 001C-1 l The following parameters are not included on the DMR forms: '

1 Ethanolamine: No Discharce mg/l (15.0 mg/l max) l DSN 001C-1(a) l The following parameters are not included on the DMR forms: J l

Ethanolamine: No Discharae mg/l (5.0 mg/l max) I DSN 001C-6 j The following parameters are not included on the DMR forms: l Ethanolamine: 17.1 kg/ batch (300.0 kg/ batch max)

DSN 001C-6(a)

The following parameters are not included on the DMR forms:

Nitric acid: No Discharae mg/l (daily comp.)

Permanganate: No Discharae mg/l (daily comp.)

DSN 001C-8 The following parameters are not included on the DMR forms:

Ethanolamine: No Discharae mg/l (3.0 mg/l max)

DSN 006 Two sets of forms have been supplied for this discharge.

Toxicity testing for Pimephales oromelas is on the DMR form, but is not required on by the permit. j 9

1 e

TABLE 3 March 1997 l

Millstone DSN 006 additional TRC data Week 1 Week 2 Week 3 Week 4 Week 5 0.05 <0.02 0.03 0.08 0.05 0.02 0.02 0.02

<0.02 0.03 <0.02 0.02 l

<0.02 0.02 <0.02 0.02 0.02 0.03 <0.02 0.03 0.03 <0.02 0.07 0.05

<0.02

<0.02

<0.02 0.02 DSN 001C-5 additional TRC data Week 1 Week 2 Week 3 Week 4 Week 5 0.14 0.13 0.15 0.17 0.13 0.14 0.14 0.14 0.17 0.14 0.14 0.09 0.15 0.15 0.13 0.14 0.14 0.14 0.16 0.16 0.17 0.16 0.15 0.15 0.16 0.17 0.16 0.15 0.14 0.14 0.16 0.17

1 1

TABLE 4 .

March 1997 l l DSN 001B-9 Additional Data l

patt Volume Hydrazine Temperature l l

3/1/97 2784 <0.350 66 3/2/97 4212 <0.350 64 3/3/97 2556 <0.350 65 3/4/97 7816 <0.350 68 3/24/97 1184 <0.350 71 3/25/97 16548 <0.350 64 3/26/97 676 <0.350 62 3/27/97 1220 <0.350 67 3/28/97 1332 <0.350 61 3/29/97 676 <0.350 60 3/30/97 665 <0.350 62 3/31/97 340 <0.350 71 DSN 001C-3 Additional Data Qat,g Volume g TSS Boric Acid I

3/15/97 3360 11.68 29.9 2.8 3/15/97 3200 11.90 32.1 1.9 I 3/22/97 3480 9.45 43.0 16.7 3/22/97 3600 8.84 33.5 33.8 3/22/97 3600 8.67 27.8 47.7 3/22/97 3600 8.23 18.2 42.2 3/23/97 2160 8.30 32.6 24.3 3/29/97 3240 11.14 4.4 9.8 l

i i

r l

l

. - - . - - . ~.. ._. . - - - - . _~ . .- --

i e

i l

Table 8 Merch 1997 additional descheroe date i

DSN 001C-8b Qate Temperature Gallons Der dev Hydrazine. mal 3/1/97 180 1530 43 3/2/97 182 1300 32 j 3/3/97 188 1500 71  !

3/4/97 187 1500 50 l 3/5/97 185 1000 29 3497 180 1410 82 3/7/97 180 1500 31 3/8/97 180 2000 33 3/9/97 180 2370 48 3/10/97 180 2000 33 3/11/97 180 2720 33 3/12/97 100 2810 92 j 3/13/97 190 2000 35 3/1 M 7 190 2640 27 3/15/97 190 2700 23 3/18/97 180 3130 58 3/17/97 180 2770 35 3/18/97 180 2810 46 3/19/97 190 2820 3/20/97 185 2430  ;

3/21/97 140 1850 22 i 3/22/97 175 1890 35

3/2397 180 3300 24 3/24/97 190 3510 24 3/25/97 190 3420 30 3/26/97 190 2000 48 l 3/27/97 190 3020 62 j

, 3/28/97 195 2980 48 3/2&S7 190 2940 48 3/3097 188 2000 53 3/31/97 188 3070 50 DSN 001C-2 pptg Conductrvity Gallons / botch g Boric Acid (JtNum Source 3/1/97 12.9 18480 4.32 587.3 <0.1 Weste Test Tank 3/14/97 13.4 16485 4.33 4388 <0.1 Weste Test Tank 3/15/97 13.4 16380 4.62 339.4 <0.1 Weste Test Tank 3/21/97 12.8 19590 4.45 344.8 <0.1 Weste Test Tank 3/23/97 08 8892 6.32 4.8 <0.1 Boron Test Tank 3/24/97 0.8 7805 5.77 2.2 Boron Test Tank 3/24/97 0.7 8892 5.70 1.2 Boron Test Tank 3/24/97 13.8 14700 4.42 358.0 <0.1 Weste Test Tank 3/2597 0.7 8775 6.27 0.9 <0.1 Boron Test Tank 3/29/97 28.3 14385 4.15 380.0 <0.1 Weste Test Tank

1 i

P ,,

. Northeast 107 seia si i,s.riin, cr o6037 Utilities System Nons viaiti s-ice comp.oy

. P.o. Bos 270 Hartford, cT 06141-0270 April 30,1997 (860) 665-s000 Dil%6 SES-97-GN-073 Mr. William D. Hegener Oil and Chemical Spill Section Department of Environmental Protection 79 Elm Street Hartford, CT %106-5127

Dear Mr. Hegener:

Connecticut Yankee Atomic Power Company Oil Snill Report On April 25,1997 at 9:15 a.m., a spill of approximately one half gallon of oil was discovered in the parking lot of Connecticut Yankee (CY) by plant personnel. The exact

]

cause of the spill is unknown. The oil had run down the parking lot and into a storm  ;

drain. The weather was dry, so the storm drain was not flowing. A small amount of oil I had dispersed from the storm drain to an adjacent pond which ultimately drains to the Connecticut River. While there was a light sheen on the pond near the storm drain discharge pipe, there was no indication that any oil had discharged to the river.

Booms were placed in front of the storm drain discharge pipe to contain any oil dispersing from it. A boom was placed in front of the pond discharge to the river as a l secondary containment measure. Absorbents were spread on the residual oil in the parking lot. Absorbent pads were placed in the storm drain, and on the pond inside the boomed area around the storm drain discharge. After several hours the absorbents were swept from the parking lot. The storm drain and booms were visually monitored throughout the weekend and the booms were not removed until April 29,1997, when a .

sheen was no longer visible in the storm drain or pond.

Regulatory agencies notified at the time of the spill included the following:

Anency Individual Notified Connecticut DEP Mr. Mike Capuano National Response Center (report #384933) Petty Officer Carneau U.S. Coast Guard Mr. Kevin McMaus U.S. Nuclear Regulatory Commission Resident Inspector Bill Raymond In addition, since a Haddam Neck Volunteer Fire Department truck was performing a routine filling operation in that location shortly before the oil was observed, the fire department was notified as well. l I

i 063422 REY. 8 95

)

l

  • i

\

i l

l l Mr. William D. Hegener l

l D11066/Page 2 '

April 30,1997 I At approximately 2:00 p.m. that day, personnel from the U.S. Coast Guard arrived on site to inspect and photograph the spill. They requested that written statements be sent to i them. They also estimated the spill size at one half gallon and stated that our spill l l

containment measures were adequate.

I Should you have any questions, please call Mr. Paul Jacobson at (860) 447-1791, Ext.

2335.

l Very truly yours,

CONNECTICUT YANKEE ATOMIC POWER COMPANY

/

\ t nuts S. E. Scace Director - Nuclear Engineering Programs cc: U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Michael Harder CT Department of Environmental Protection 79 Elm Street Hartford, CT 06106-5127 Michelle DiNoia CT Department of Environmental Protection 79 Elm Street l Hartford, CT 06106-5127 Commanding OfEcer MSO Long Island Sound 120 Woodward Ave.

j New Haven, CT 06512 l

Attention: MST Reeve

Arl ALHMm 1 12.0 REV'6 Connecticut Yankee Atomic Power Co.

Haddam Neck Plant Hazardous Substance Spill Report COMPANYIDEPT RESPONSIBLE SPILL DATE ARD OF PLANT sPLLOCCURRED [TlWE lv 44 L%LJ /P.J cy Mo*WEo" 4/zr/97 OW PHONE EXT.

( REPORT PREPAREQjBY k.L. Hm, 247. Un 32//

TIME

$UPERVISOR ON/CALL EMPLOYEE REPORTING ON $1TE SPILL DATE Col Cha u b Lt ?% Luc S'sTPSSI

1. SPILL LOCAn0N L EoutPMENT, NUnn0ERSit UCH UNt1 S QUANTITYANO TTPE OswET O@gry 0" O CONTMNER($)

GALLONS O svasTATON 0"MAY e 20xR ovsms) / gem l HJL u O tu* O CaCamio

,,h,;,,fm M od ,o eoma b JA il b mmmuO

'"'" % . (J /A a w L J A d mTE=t m seto ouro a a r m u m s m ro nro 8 PAVEuENT OTREES OsTRuCiunEs To%,,C^gaAsk O INLAND WETLANDS O EARm O FARu CRoes O VEHICLES C OR QR WO OPERSONS @

U g '

/)/4 o n1 OLawN O FARu ANNALS OssRussreRusH 3oTHERRN b- 'd P

  • O OTHER ONONE s ussmnEwCowTAntof ano.ctsCmeE:

Caves Om 6 b 4 1 as.M vouJ. J,, vAs T. snucaust l n smtvExT i n wtArutn O vEsctE ACCoENT O vANoAusu 0;A)NTURE GASKET /MTING LEAK [ FAIR V OsTeuEvENT O CORROSCN @ A80VE GROUNo OcuNssoTHou O RMN

[HEcuP.rAtuRE O HUMAN ERRoa O snowcaouNo O ARE O sNowisuET g oTat,% ~a dA c:/ ullt 08#RoToNuole DemER O m No

10. CLEA%UPAk0oTHERhPoRetAnoet 6l n LJ w Ju,t,J dll sted, hv. 6:1 o, n~ Ju- up uAw

/

I%AJ cal G h )or d iN ps REPonnua Reovenam oveno CAu ua onamt CAu nTasmCuen roacwvPCAu C REPORT ALL sPlus T0-2 oEPwwEmoF Ewac=Ema PRoTECroN wEu oAvs m- Nfy N oEPARmEcor EmoNufwinPRoTECTeN Au nouRs m m. 7/zr/97 D* ITIME DATE lTME u REPORTAusms fo:

s oEPARTuEm or EwmoNuEmAtouAuTv Ex2.

STATE POUCE omCE nouRs AFTER HOURS mTsim 151T)l0H000 gg R REPORT ALL sPtts IEETING THE FE00ut OR CY l

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