ML20196C716

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Requests That Util Address Generic Ltr 88-17 Re Loss of DHR During Nonpower Operation.Issue of High Priority & Should Be Addressed Accordingly
ML20196C716
Person / Time
Site: Millstone, Haddam Neck, 05000000
Issue date: 12/02/1988
From: Murley T
Office of Nuclear Reactor Regulation
To: Ellis W
NORTHEAST UTILITIES
References
GL-88-17, NUDOCS 8812080069
Download: ML20196C716 (3)


Text

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Occket No. 50 213/336/423 DISTRIBUTION DEC s, 13384 EOpe SNorris SVarga~

BBoger JStolz AWang Mr. William B. Ellis DJaffe NRC & Local PCRs Chatman of the Board DCrutchfield BGrires Northeast Utilities TMurley Post Office 270 EJordan Hartford, Connecticut 06141-0270 ACR$(10)

HBalukjian

Dear Mr. Ellis:

CTramell

SUBJECT:

LOSS OF DECAY liEAT REF0 VAL We have just issued Generic letter 8817 which addresses loss of decay heat renoval (CHR) during ocnpcker operation.

This letter was issued because of the potential serious consequence of loss of shutdown cooling concurrent with significant core decay heat. Further, it is our belief that the industry as a whole has not aggressively responded to

.atnive the concern following its ident?fication in cur earlier Generic Letter 87-12.

In particular, the industry's respcose to the Ceneric Letter 07-12 was deficient in the areas of (1) prevention of accident initiation (?) mitiga.

tion of accidents before they potentially progress to core damage, and (3) centrol of radioactive raterial if a core damage accident should occur.

Generic letter 68-17 prescribes expeditious actions which should trerediately case the concern; and parallel, but longer tern, progranred enhancerents which effectively address the rect cause of the problems and pemit creater flexi.

bility in operatien.

Ve consider this issue to be of high priority ar.d request that ycu assure that your organization addresses it accordirgly.

Sincerely, oricimi 310"#'

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,Mr. Willian 5. Ellis Haddam Neck & Millstone Nuclear

!!ortheast titilities Power Station Units Nos. 283 cc:

Gerald Garfield, Esquire R. M. Kacich, Manager Day, Berry and Howard Generation Facilities Licensing Counselors at Law Northeast Utilities Service Company City Place Post Office Box 270 Hartford, Crnnectir.ut 06103-3499 Hartford, Connecticut 06141-0270 W. D. Romberg, Vice President D. O. Nordquist Nuclear Operations Manager of Quality Assurance Northeast Utilities Service Company Northeast Nuclear Energy Company Post Office Box 270 Post Office Box 270 Hartford, Connecticut 06141-0270 Hartford, Connecticut 06141-0270 Kevin McCarthy, Director Regional Administrator Padiation Control Unit Region !

Department of Environmental Protection U. S. Nuclear Regulatory Comission State Office Building 475 Allendale Road Hartford, Connecticut C6106 King of Prussia Pennsylvania 194C6 Bradford S. Chase, Under Secretary First Selectmen Energy Division Town of Waterford Office of Policy and Management Hall of Records 1

80 Washington Street 200 Boston Post Road j

Hartford, Connecticut 06106 Waterford, Connecticut 06385 S. E. Scace Station Superinti:ndent W. J. Rayirond, Resident Inspector Millstone Nuclear Power Station Millstone Nuclear Power Station Nertheast Nuclear Energy Company c/o U. S. Nuclear Regulatory Comission Post Office Box 128 Post Office Box C11 f

Waterford, Connecticut C6385 Niantic, Connecticut 06307 C. H. Clement Unit Superintendent M. R. Scully, Executive Director Millstone Unit No. 3 Connecticut Vunicipal Electric Northeast Nuclear Energy Ccrpany Energy Cooperative Post Office Box 128 268 Thomas Road Waterford, Connecticut 06385 Groton, Connecticut 06340 Ms. Jane Spector Michael L. Jones, Manager Federal Energy Regulatory Comission Project Management Department 825 N. Capitol Street, N.E.

Massachusetts Municipal Wholesale Room 8608C Electric Corpany Washington, D.C.

20426 Post OfftM Box 426 Ludlow Massachusetts OJ056 Burlington Electric Cepartrent c/o Robert E. Fletcher, Esq.

Charles Brinkran, Manager 271 South Union Street Washington Nuclear Operations Burlington, Venrent 05402 C-E Power Systems Combustion Engineering, Inc.

J. S. Keenan. Unit Superintendent 7910 Woodrront Avenue 1

Millstone Unit No. 2 Bethesda, Maryland 20814 Northeast Nuclear Energy Corpany Post Office Box 128 Waterford, Connecticut 06385

.p.

Mr. William B..Ellis Haddam Neck & Millstone Nuclear

. Northeast Utilities Power Station Units Nos. 283 cc:

D. B. Miller. Station Superintendent Haddam Neck Plant Connecticut Yankee Atomic Power Company RFD 1. Post Office Box 127E East Hampton, Connecticut 06424 G. H. Bouchard. Unit Superintendent Haddam Neck Plant RFD #1 Post Office Box 12'iE East Hampton, Connecticut 06424 J. T. Shedlosky, Resident Inspector Haddam Neck Plant c/o U. S. Nuclear Regulatory Commission Post Office Box 116 East Hadden. Post Office East Haddam Connecticut 06423 Edward J. 'froczka Senior Vice President 1

Nuclear Engineering and Operations P. O. 50x 270 Hartford, Connecticut 06141-0270 I

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