ML20062E678

Forwards NRC Staff Position on Seismic Category 1 Fuel Bldg. Finds non-seismic Category 1 Classificattion of Portion of Fuel Bldg Unacceptable

ML20062E678
Person / Time
Site:	05000495
Issue date:	11/29/1978
From:	Heltemes C Office of Nuclear Reactor Regulation
To:	William Kennedy STONE & WEBSTER, INC.
References
NUDOCS 7812110250
Download: ML20062E678 (3)

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NUCLEAR RE.CULATORY COMMISSION

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Docket No. STB 50-495

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'Mr. W. J. L. Kennedy, Vice President Stone & Webster Engineering Corporation P. O. Box 2325 Boston, Massachusetts 02107

SUBJECT:

SEISMIC CATEGORY I FUEL BUILDING 1

Our raport to the Advisory Committee on Reactor Safeguards concerning the SWESSAR-Pl/BSAR-205 design, issued in November 1977, did not

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identify the seismic design classification of the fuel building as an open item. Since then, we have found that a portion of the fu,el building is not designed to seismic Category I requirements, and there-4 fore, the design is unacceptable. Enclosed is our staff position delin-eating our requirements for the fuel building design. ~ As you.know, this i

position has previously been identified to Stone & Webster through two utility applications in which the Stone & Webster balance-of'-plant. design is used - the Jamesport (Long Island Lighting Co.) and Greene Couri.t'y (Power Authority of State of New York) applications.

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It is our intent to resolve this matter prior to issuance of a PDA for SWESSAR-Pl/BSAR-205. Should you have any question about this request, please contact your licensing project manager, Thomas Cox.

Sincerely, t*.

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p jfl,;g. Csf C. J. Hel te:r.as, Jr., Chief 5tsndardization Branch Division of Project Management 2

Enclosure:

Staff Position I

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Staff ~ Position i

i SWESSAR/BSAR-205 DOCKET NO. STN 50-495

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qi 02.36 Your non-seismic Category I. classification of a portion of i

(RSP) the fuel building is unaccep~ table.

It is our position that in order to preclude possible direct release: of fuel building l

i i atmosphere to the environment and ensure the duign function of the fuel building air filtration system follow!ng a fuel

' i handling accident, we require that the entire fuel building be designed to seismic Category I requirements in conformance with Regulatory Guide 1.29.

In doing so, you should assure that all portions of the structure and systems which serve as a low leakage barrier to provide atmospheric isolation of the spent fuel storage pool and associated fuel handling area arc designed to seismic Category I criteria.,

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- NOV 2 :r 1378 J.:

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I cc: Mr. Thomas M. Anderson,. Manager l

Nuclear Safety Department l

Westinghouse Electric Corporation P. O. Box 355 1]

Pittsburgh, Pa. 15230 i

Mr. P. L. McGill, Vice President

. li-Projects Combustion Division Combustion Engineering, Inc.

1000 Prospect Hill Road i

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Windsor, Connecticut 06095-1 6

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