ML20133E058

Corrected Ltr Forwarding Suppl to 841121 Safety Evaluation, Accepting Util 850612 Reevaluation of Masonry Wall Integrity.Suppl Completes Action on IE Bulletin 80-11

ML20133E058
Person / Time
Site:	Calvert Cliffs
Issue date:	07/18/1985
From:	Butcher E Office of Nuclear Reactor Regulation
To:	Lundvall A BALTIMORE GAS & ELECTRIC CO.
Shared Package
ML20133E064	List: ML20133E058 ML20133E110
References
IEB-80-11, NUDOCS 8508070559
Download: ML20133E058 (2)

Text

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NCh July 18, 1985 CORRECTED COPY Docket Nos. 50-317 Distribution: Docket Files and 50-318 NRC& L PDRs HThompson ACRS 10 Edordan OELD PKreutzer DJaffe EButcher Mr. A. E. Lundval.1, Jr. BGrimes ORB #3 Gray Vice President - Supply ORB #3 Rdg Baltimore Gas & Electric Company P, 0. Box 1475 Baltimore, Maryland 21203

Dear Mr. Lundvall:

By letter dated November 21, 1984, the NRC staff issued its Safety Evaluation concerning masonry wall integrity at Calvert Cliffs Units 1 and 2 as related to our concerns as stated in IE Bulletin 80-11. At that tine, we indicated that the evaluation of 22 masonry walls, utilizing the energy balance technique, was unacceptable without further justification. Subsequently, by letter dated June 12, 1985, BG8E presented additional information regarding the evaluation of these walls.

The enclosed supplement to our November 21, 1984 Safety Evaluation concludes that BG&E's reevaluation of the subject masonry walls, utilizing methods -

other than the energy balance technique, is now acceptable. In addition, the NRC staff concludes that Items 2(b) and 3 of IE Bulletin 80-11 have been fully implemented at Calvert Cliffs and that there is a reasonable assurance that all safety-related masonry walls will withstand the specified design load conditions without impairment of (a) wall integrity or (b) the performance of the required safety function. Accordingly, your response to IE Bulletin 80-11 is acceptable and our review is complete.

Sincerely,

3;.nl msn 04 Edward J. Butcher, Acting Chief Operating Reactors Branch No. 3 Division of Licensing

Enclosure:

As stated cc w/ enclosure:

See next page ORB #3:DL ORB #3:DL ORB #3:DL PKreutzer DJaffe;ef EButcher 7/18/85 7/18/85 7/18/85 559 85071s

[ HOCK 0500003y G

PDR

Mr. A. E. Lundvall, Jr.

Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant ec:

Mr. William T. Bowen, President Regional Administrator, Region I Calvert County Board of U.S. Nuclear Regulatory Comission i Commissioners Office of Executive Director j Prince Frederick, Maryland 20768 for Operations l 631 Park Avenue )

D. A. Brune, Esq. King of Prussia, Pennysivania 19406 General Counsel Baltimore Gas and Electric Company Mr. Charles B. Brinkman P. O. Box 1475 Manager - Washington Nuclear Operations Baltimore, Maryland 21203 Combustion Engineering, Inc.

7910 Woodmont Avenue George F. Trowbridge, Esq. Bethesda, Maryland 20814 Shaw, Pittman, Potts and Trowbridge 1800 M Street, NW Mr. J. A. Tiernan, Manager Washington, DC 20036 Nuclear Power Department Calvert Cliffs Nuclear Power Plant Mr. R. C. L. Olson, Principal Engineer Maryland Routes 2 and 4 Nuclear Licensing Analysis Unit Lusby, Maryland 20657 Baltimore Gas and Electric Company i Room 922 - G&E Building Mr. R. E. Denton, General Supervisor P. O. Box 1475 Training and Technical Services l Baltimore, Maryland 21203 Calvert Cliffs Nuclear Power Plant Maryland Routes 2 and 4 Lust,y, Maryland 20657 Resident Inspector c/o U.S. Nuclear Regulatory Commission Combustion Engineering, Inc.

, P. O. Box 437 ATTN: Mr. R. R. Mills, Manager

! Lusby, Marylano 20657 Engineering Services P. O. Box 500 l Mr. Leon B. Russell Windsor, Connecticut 06095

! Plant Superintendent Calvert Cliffs Nuclear Power Plant Department of Natural Resources Maryland Routes 2 and 4 Energy Administration, Power Plant Lusby, Maryland 20657 Siting Program ATTN: Mr. T. Magette Bechtel Power Corporation Tawes State Office Building ATTN: Mr. J. C. Ventura Annapolis, Maryland 21204 Calvert Cliffs Project Engineer 15740 Shady Grove Road Gaithersburg, Maryland 20760 Mr. R. M. Douglass, Manager

! Quality Assurance Department Baltimore Gas and Electric Company Fort Smallwood Road Complex P. O. Box 1475 Baltimore, Maryland 21203