ML20050C268

Notifies That Response to 820120 Request for Addl Info Re IE Bulletin 80-04, Main Steam Line Break Accident W/ Continued Feedwater Addition, Will Be Delayed Until 821020 to Allow Coordination of Analyses

ML20050C268
Person / Time
Site:	Calvert Cliffs
Issue date:	04/05/1982
From:	Olson R L BALTIMORE GAS & ELECTRIC CO.
To:	Clark R Office of Nuclear Reactor Regulation
References
REF-SSINS-6820 IEB-80-04, IEB-80-4, NUDOCS 8204080353
Download: ML20050C268 (2)

Text

i BALTIMORE GAS AND ELECTRIC CHARLES CENTER. P.O. BOX 1475 BALTIMORE, MARYLAND 21203 April 5, ELECTRIC ENGINEERING h

DEPARTMENT h

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Office of Nuclear Reactor Regulation s

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U. S. Nuclear Regulatory Commission g qk p Washington, D. C.

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Mr. Robert A. Clark, Chief h

Operating Reactors Branch #3

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8 Division of Licensing q

Subject:

Calvert Cliffs Nuclear Power Plant Units Nos. 1 & 2; Dockets Nos. 50-317 & 50-318 IE Bulletin 80-Oh, Request for Additional Information

Reference:

NRC letter dated 1/20/82 from R. A. Clark to A. E. Lundvall, Jr.

Gentlemen:

The referenced letter requested additional infornation concerning the nredicted respor.se of the Calvert Cliffs reactors to a main steam line break accident with continued feedvater addition. The request addressed two itens of concern with several questions on each iten. As a result of a telephone conversation with our NRC Project Manager, we understand that questions k and 5 of Item 1 have been deleted, as have questions b and 5 of Item 2.

However, question 3 of each item has been expanded to include a request for a justification of the methods and asaunptions used in the anal / sis of each item.

After considerable investigation, we have found it necessary to extend the schedule for responding to your request until October 20, 1982. This extension is required to allow us to arrange, coordinate and review the several interrelated analyses necessary to respond to your request.

If you have any questions concerning our approach to this matter or our schedule for response, we would be pleased to discuss them with you.

Very truly ours, r

l hh l' S R. C. L.

1 son

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Principal Engineer Nuclear Licensing & Analysis Unit cc:

J. A. Biddison, Esquire J. C. Ventura - Bechtel G. F. Trowbridge, Esquire P. W. Kruse - CE Messrs. D. H. Jaffe - NRC R. E. Architzel - NRC i

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