BECO-92-093, Requests Changes to NPDES Permit MA0003557,changing Listed Part I,Paragraphs A.1.m & A.1.n as indicated.Marked-up Page 5 of NPDES Permit Encl

Requests Changes to NPDES Permit MA0003557,changing Listed Part I,Paragraphs A.1.m & A.1.n as indicated.Marked-up Page 5 of NPDES Permit Encl

ML20099B656
Person / Time
Site:	Pilgrim
Issue date:	07/27/1992
From:	Richard Anderson BOSTON EDISON CO.
To:	Landry T ENVIRONMENTAL PROTECTION AGENCY
References
BECO-92-093, BECO-92-93, NUDOCS 9208030007
Download: ML20099B656 (3)

Text

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• s 00S TON EDISON e.w m w ..m n,.m % n R '; 6 .- HW Hr:ad 4

6.,m:ncri I,bs a he t A UDi>D Roy A. Anderson July 27, 1992 sew v ca nesomi um BECo 92- 093 Hr. T. E. Lar. dry V. S. Environmental Protection Agency Haste Water Compliance Section JFK Federal Building, Room 2113 HMM Boston, MA 02203

Dear Hr. Landry:

The Boston Edison Company is requesting two changes to the Pilgrim Nuclear Power Station (PNPS), National Pollutant Discharge Elimination System (NPDLS)

Permit #MA0003557. The requested changes are detailed in the attached excerpt from the NPDES Permit and are as follows:

1) fir _i_L Paracragh A. l .m (p33e 5 of 15)

Change "in 20,000 gallon batches" to "in no more than 20,000 gallon batches".

2) Part I . Paraarao . A. I .n (pagg b of 151 Change " sodium nitrite, shall not exceed 2.0 mg/l" to " sodium nitrite, calculated from nitrite analysis, shall not exceed 2.0 mg/1."

Please confirm whether approval of this request will require modification of the existing NPDES Permit. He would appreciate a response to this request by August 15, 1992.

If additional information is required, please contact Mr. R. D. Anderson at 617-849-8935.

Very truly yours, M

\ N A. Anderson (R

RDA/ cab /NPDESYS 1

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9508530007 920727 PDR ADOCK 05000~e3 i P PIE.  ; )

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80510N EDISON COMPANY Hr. 1. E. Landry Page 2 l

cc: U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555  !

U.S. Nuclear Regulatory Commission Region 1 475 Allendale Road King of Prussia, PA 19406 Ms. Cynthia Kane Massachusetts Division of Water Pollution Control Permit Section - 7th Floor One Winter Street Boston, MA 02198

\' Page 5 of 15 Permit No. MA0003557 (3) That they have begun or expect to begin to use or manufactare as an intermediate or f inal product or byproduct any toxic pollutant which was not reported i in the pe rmi t application.

1 The discharge of radioactive materials shall be in accordance wi th the Nuclear Regulatory Comnission operaticnal requirements (10 CTR 20 and NRC Technical Specifications set f o rth in f acility operating license, ~

DPR-35). E0more Ook

m. Sodium pentaborate shall be discharged in 20,000 gallon batches at a maximum concentration of 16,500 mg/l calculated as boron. The boron concentration shall shall not exceed 1.0 mg/l (by calculation) above background in Discharge 001 at the point of r31 ease int o Cape Cod Bay. The maximum concentration c boron 7

- the storage tanks and/or dilution provided by the

circulating water pumps' flow shall be ccatrolled, if necessa ry to sat is f y the 1.0 mg/l boron discharge criteria. (Nominally the maximum flow cate from the storage tanks into Discharge 001 will not "Aceed 200 gpm to satisfy the 1.0 mg/l boron criteria. ) A circulating cooling water pump must be in operation during a sodium pentaborate release to ensure proper

, sodium pentaborate dilution. Each release of boron will be reported in the appropriate DMR providing the date (s) of discharge, gallons discharged, the

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concentration of the boron in the tank before release, and the calculated boron concentration in Discharge 001 before mixing with Cape Cod Bay water.

n. Sodium nitrite shall be dischargedfrom the station closed loop cooling water systems and heating system into Discharge 011 and from fire water storage tanks, condensate storage tanks, and demineralized water storage tanks into Discharge 001. The discrarge of

$cAtc.acerce pgoy 1

- sodium nitritetshall not exceed 2.0 mg/l (by calculation)

M rD& G~E o ddbYS LS 3 in Discharge 001 before release into Cape Cod Bay water.

Each release shall be reported in the appropriate DMR oroviding the gallons discharged, the concentration of the sodium nitrite in the water discharged , and the calculated sodium nitrite in Discharge 001 before mixing with Cape Cod Bay Water.

o. Sand may be removed from the concrete su'rfaces of the intake structure when the sand builduo interferes with the normal operation of the rota' ting screen l equipment posing a threat to the mechanical components. j The sand may be disposed of on the land. Each such -

sand removal shall be reported in the appropriate EMR.

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