ML20137M612

Informs That Review of Plant Records Has Identified Need to Correct Nitrite Value for Dsn 001-A,test Tanks Reported in Sept 1995 Discharge Monitoring Rept

ML20137M612
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	03/31/1997
From:	Scace S CONNECTICUT YANKEE ATOMIC POWER CO., NORTHEAST UTILITIES SERVICE CO.
To:	Dinoia M ENVIRONMENTAL PROTECTION AGENCY
References
SES-97-GN-045, SES-97-GN-45, NUDOCS 9704080137
Download: ML20137M612 (3)

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March 31,1997 P.o. so. 270 hdora, er 06141-0270 L (860) 665-s000 I

SES-97-GN-045

-- D10908 l

Ms. Michelle DiNoia Water Management Bureau j Department of Environmental Protection i 79 Elm Street -  :

Hartford, CT 06106-5127 I

Reference:

Letter (D09209) to DMR Processing, CT DEP, from F.R.Dacimo, dated I October 13,1995. l l

I-

Dear Ms. DiNoia:

1 Connecticut Yankee Atomic Power Company )

NPDES Permit No. CT 0003123  ;

Di_acharae Monitorina Renort Revision I

]

. A review of plant records in connection with Connecticut Yankee Atomic Power j Company's preparation ofits 1997 NPDES permit renewal application has identified the  !

need to correct a nitrite value for DSN 001-A, Test Tanks that wu reported in its l September 1995 Discherge Monitoring Report (DMR) (Reference). On September 6, j 1995, a Test Tank was analyzed for nitrite in accordance with the NPDES permit. The permitted nitrite limit is 0.05 mg/L. An initial nitrite concentration of 0.054 mg/L was i obtained. The Test Tank sample was re-analyzed with a resulting nitrite concentration of (

0.044 mg/L, While the average of these twc values (0.049 mg/L) was reported in the DMR for the first of two monthly samples, the maximum value for the month should have been reported as 0.054 mg/L instead of 0.049 mg/L. Accordingly, a revised DMR page including all sample results for that discharge is attached.

j Should you have any questions concerning this matter, please contact Mr. Paul Jacobson at (860) 447-1791 ext. 2335.

.Very truly yours,

/ \

h CONNECTICUT YANKEE ATOMIC POWER COMPANY J Ora, o . ~

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S. E Scace '

Director - Nuclear Engineering Programs  !

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, Ms. Michell2 DiNoia D10908/SES-97-GN-045/Page 2

, March 31,1997 Enclosure cc: DMR Processing Department of Environmental Protection Water Management Bureau 79 Elm Street l Hartford, CT 06106-5127 l

~

Mr. James Grier '

Water Management Bureau Department of Environmental Protection .

79 Elm Street Hartford, CT 06106-5127 Mr. Michael Harder Water Management Bureau i Department of Environmental Protection 79 Elm Street i Hartford, CT 06106-5127 j Nuclear Regulatory Commission o 1 '

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STATE OF CONPECTICUT ** DEPARTMENT OF ENVIRotSENTAL PROTECTION Bureau of Water Menegement - Discharge Mon 9ering Report (DMR)

O i KEY: CTOOO3123 tesue: 093092 Empire: 09/3047 Sample Mont!' Sectember 1995 ,

Average Flour 10000 GPD ND = none deleded DIscherg001 A Code Start Mon Loc- 1 s/Wn Typ STEAM ELECTRIC POWER PLANT Unit Parameter Minimum AvtwageMaximurn Freq

/)g%

/ S.mpie weeks-1 2 3 4 5 01022 100192 Om G MG/L BORON TOTAL (AS B) " "

104 02/30 104 82 00164 100192 Om i GPS FLOW, GALLONS / BATCH "

10600 "

01/DS 12000 9200 01062 100192 04 G MG/L MOLYBDENUM. TOTAL (AS MO O.010 02/30 oofo o 004 71850 100192 Om G MGdL NITROGEN, NITRATE TOTAL " "

0.048 02/30 0.0s3 0oes M hdl t

o.ofY 04Y 00615 100192 OfD G MGtL NITROGEN,NITRfTETOTAL " -

3 049 02/30 a s N( 1' 0.027 00556 100192 09 G MG/L Oil & GREASE FREON EX ND " "

2.06 02/30 <1 2.Se 34044 100192 Om G MG/L O)00 ANTS, TOTAL RESIDUAL " -

0.17 01/07 0.14 0.17 0.16 0.14 0.15 0.15 00400 100192 Om I SU PH 7.05 "

7.12 02/30 7.05 7.12 00530 100192 04 G MG/L SOLIDS, TOTAL SUSPENDI ND ~ ~

<1 02/30 <1 <1 COMMENTS:

KEY: CTOOO3123 issue: 093092 Expire- 09/30/97 Sample Month September 1995 Average Flour.120000 GPD ND = none detected DIsserg001B Mon Loc:1 l BLOW DOWN FROM HEAT / COOL Sample Weeks:

Code Start ski Typ Unit Parameter Minimum AverageMaximurn Freq 1 2 3 4 5 00310 100192 OfD CP MG/L BOD 5 DAY (20 DEG C)

Code 9 02/99 00335 100192 04 CP MG/L CHEMICAL OXYGEN DEMAND - -

Code 9 02/99 00940 100192 OfD CP MGJL CHLORIDE (AS CL)

Code 9 02/99 COMMENTS- Code 9 = conditional monitoring Page 4

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