ML20154G332

Forwards Safety Evaluation of Util Responses to Multiplant Action D-10.Reasonable Evidence That Reactor Sys Would Withstand Effects of Asymmetric LOCA Event & That Cold Shutdown Condition Could Be Achieved Safely Concluded

ML20154G332
Person / Time
Site:	Millstone
Issue date:	05/12/1988
From:	Jaffe D Office of Nuclear Reactor Regulation
To:	Mroczka E NORTHEAST NUCLEAR ENERGY CO.
Shared Package
ML20154G336	List: ML20154G332 ML20154G349
References
TAC-08949, TAC-8949, NUDOCS 8805240329
Download: ML20154G332 (2)

Text

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l May 12, 1988 Docket No. 50-336 DISTRIBUTJON: l

, ea ges y , w . p e!.

. Mr. Edward J. Mroczka NRC & Loca PDRs Senior Vice President DJaffe  :

Nuclear Engineering and Operations OGC l Northeast Nuclear Energy Company SNorris  !

P.O. Box 270 EJordan i Hartford, Connecticut 06141-0270 -PDI-4 Gray Files ACRS(10) ,

Dear Mr. Mroczka:

JPartlow 1 LMarsh

SUBJECT:

MILLSTONE UNIT 2 - MULTIPLANT ACTION 0-10 (ASYMMETRIC LOCA LOADS) - TAC NO. 08949 l

We have completed our review of your responses for Millstone Unit 2 concerning  !

Asymetric LOCA Loads. We conclude that thare is reasonable evidence that the Millstone Unit 2 reactor systems would withstand the effects of an asymmetric LOCA event and that the reactor could be brought to a cold shutdown condition sa fety. Enclosure 1 contains our Safety Evaluation. We consider this issue resolved for Millstone Unit 2.

Sincerely, Original signed by David H. Jaffe, Project Manager i

Project Directorate I-4 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation l

Enclosure:

Safety Evaluation cc: w/ enclosure:

See next page l

l i

Off ce: LA/P -4 PM/P 4 PD/ TW-(

Su .. SNorr s c DJaff ( JStolz Date: 05/q /88 05/ll/88 05/ /88 OFFICIAL RECORD COPY 5520 document name: LOCA LOADS l

i 8805240329 080512 PDR ADOCK 05000336 P PDH

fo Mr. Edvard J. Mroczka Millstone Nuclear Power Station Northeast Nuclear Energy Company Unit No. ?

• cc:

Gerald Garfield, Esquire R. M. Kacich, Manager Pay, Berry and Howard Generation Facilities Licersing Counselcrs at Law fcrtheast Utilities Service Corpany City Place Post Office Box ?70 Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270 W. D. Romberg, Vice President D. O. Nordquist Nuclear Operations Panager of Quality Assurance Northeast Utilities Service Company Northeast Nuclear Energy Curpany Post Office Box 270 Post Office Box 770 Hartford, Connecticut 06141-0270 Hartford, Connecticut 061al-0210 Kevin McCarthy, Director Regional Administrator F.adiation Control Unit Region !

Cepartrent of Environtrental Protection U. S. Nuclear Regulatory Comissiert State Office Building 475 Allendale Read .

Hartford, Connecticut C6106 King of Prussia, Pennsylvania 19406 Bradford S. Chase, Under Secretary First Selectmen Energy Divisien Town of Waterford Office of Policy and Management Hall of Records 80 Eashington Street 700 Boston Post Road Hartford, Connecticut 06106 Waterford, Connecticut 06?P5 S. E. Scace, Station Superintendent W, J. Raytrend, Resident Inspector Millstere Nuclear Pcwer Staticn Millstone Nuclear Fewer Statico ,

Ncrtheast Nuclear Energy Company c/o U. S. Nuclear Regulatory Comission Post Office Box 12E Post Office Box 811 Waterford, Connecticut 06385 Niantic, Connecticut CC357 J. S. Keenan Unit Superintendent Charles Brinkman, Panager l Millster.e Unit No. ? Vashington Nuclear Operations l

< Northeast Nuclear Energy Company C-E Power Systems l Post Office Ecx 128 Combustion Engineering, Inc.

Waterford. Connecticut 06385 7910 Woodmont Avenue Pethesda, Faryland 20814 l

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