ML20127G991

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Forwards Response to NRC Position on Energy Balance Re IE Bulletin 80-11. All 22 Walls in Question Satisfy NRC Criteria Using Elastic Working Stress Analysis Methodology
ML20127G991
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 06/12/1985
From: Poindexter C
BALTIMORE GAS & ELECTRIC CO.
To: Butcher E
Office of Nuclear Reactor Regulation
Shared Package
ML20127G995 List:
References
IEB-80-11, NUDOCS 8506260170
Download: ML20127G991 (1)


Text

7,_

o BALTIM ORE GAS AND ELECTRIC CHARLES CENTER.P. O. BOX 1475 BALTIMORE, MARYLAND 21203 ARTHUR E. LUNDVALL. JR.

vicc PnE51Dre4T SUPPLY Director of Nuclear Reactor Regulation Attention: Mr. E. 3. Butcher, Jr. Chief Operating Reactors Branch #3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Calvert Cliffs Nuclear Power Plant Units Nos.1 & 2; Dockets Nos. 50-317 and 50-318 Supplemental Response to IEB 80-11, Masonry Walls Gentlemen:

Enclosed for your review is a report which responds to the only remaining open item on the subject issue. Your letter dated November 21, 198tt transmitted an NRC staff position that use of the energy balance technique for qualification of masonry walls was not acceptable without further documentation of the methodology. Our proposed approach for addressing your concern was discussed with members of your staff during a meeting on April 5, 1985 at which we committed to submitting a supplemental response by June 15,1985. Accordingly, the enclosed report demonstrates that all twenty-two walls in question satisfy staff criteria using clastic working stress analysis methodology. This methodology has been accepted by the NRC staff.

If you should have any questions, please do not hesitate to contact us.

Very truly yours,

. /

AEL/M3G/BSM/vf

Enclosure:

Response to NRC Position on Energy Balance Relating to IE Bulletin 80-11, dated May 21,1985.

cc: D. A. Brune, Esq.

G. F. Trowbridge, Esq.

Mr. D. H. Jaffe, NRC g\

Mr. T. Foley, NRC Mr. 3. C. Ventura, Bechtel fp n

83R06260170 850612 G ADOCK 05000317 PDR

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