ML20247R656

Forwards LAR 97-07 to License NPF-86,revising Refueling Water Storage Tank Setpoint Associated W/Automatic Switchover of Containment Sump

ML20247R656
Person / Time
Site:	Seabrook
Issue date:	05/20/1998
From:	Feigenbaum T NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20247R662	List: ML20247R656 ML20247R682 ML20247R702
References
NYN-98071, NUDOCS 9805290194
Download: ML20247R656 (3)

Text

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i North Nonh Atlantic dierg Smico Corgmration P.O. Box 300

1. Atlantic seahroek, sii O3874 l J' 1 (603) 474-9521  :

The Northeunt Utilities System May 20,1998 Docket No. 50-443 NYN-9807 I United States Nuclear Regulatory Commission Attention: Document Control Desk i

Washington, D.C. 20555 Seabrook Station l License Amendment Request 97-07,

" Revision of Refueling Water Storage Tank Low-Low Level Setpoint" l North Atlantic Energy Service Corporation (North Atlantic) has enclosed herein License Amendment Request (LAR) 97-07. LAR 97-07 is submitted pursuant to the requirements of 10 CFR 50.90 and 10 CFR 50.4.

LAR 97-07 proposes a change to the Seabrook Station Technical Speci0 cations (TS), Engineered Safety '

Features Actuation System Instrumentation Trip Setpoints, Table 3.3-4, Functional Unit 8.b, RWST Level--Low-Low, and associated Bases Section 3/4.3.2. The proposed change will revise the Refueling Water Storage Tank (R'WST) setpoint associated with Automatic Switchover to the Containment Sump.

The proposed setpoint is the result of a revised setpoint calculation which increases design margin and enhances the setpoint by providing both an upper and lower allowable value to more closely satisfy design basis requirements.

LAR 97-07 has been reviewed arid approved by the Station Operation Review Committee and the Nuclear Safety Audit Review Committee.

As discussed in the enclosed I.AR Section IV, the proposed change does not involve a signi0 cant hazard consideration pursuant to 10 CFR 50.92. A copy of this letter and the enclosed LAR have been forwarded to the New llampshire State Liaison Officer pursuant to 10 CFR 50.91(b). North Atlantic requests NRC review of LAR 97-07 and issuance of a license amendment by November 30,1998 (see Section V enclosed).

North Atlantic has determined that LAR 97-07 meets the criteria of 10 CFR Sl.22(c)(9) for a categorical exclusion from the requirements for an Environmental Impact Statement (see Section VI enclosed).

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. U.S. Nucle r Regulitory Commission

• NYN-98071/Page 2 Should you have any questions regarding this letter, please contact Mr. Terry L. Ilarpster - Director of Licensing Services, at (603) 773-7765.

Very truly yours, NORTli ATLANTIC ENERGY SERVICE CORP.

'e CTeigenb'au h' # ~

Executive Vice President and Chief Nuclear Officer Enclosure cc: 11. J. Miller, NRC Regional Administrator j C. W. Smith, NRC Project Manager, Project Directorate 1-3 i R. K. Lorson, NRC Senior Resident inspector Mr. Woodbury P. Fogg. P.E., Director New llampshire Office of Emergency Management Staic Office Park South 107 Pleasant Street Concord, Nil 03301 l l

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NY,N-98071 I

LICENSE AMENDMENT REQUEST 97-07,

" REVISION OF REFUELING WATER STORAGE TANK Low-Low LEVEL SETPOINT

Carriere, D. COMELEC Cuoco, L. M. e-mail Garfield, G. e-mail Gillespie, J. Millstone 475/5 Millstone Nuclear Licensing e-mail  ;

NSARC Distribution e-mail j Quinlan, W. J. e-mail File 0001 01-48 File 0052.G 01-48 RMD 02-06