ML20101Q650
| ML20101Q650 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 12/27/1984 |
| From: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| To: | John Miller Office of Nuclear Reactor Regulation |
| References | |
| IEB-80-11, NUDOCS 8501080209 | |
| Download: ML20101Q650 (1) | |
Text
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BALTIM O RE GAS AND ELECTRIC CHARLES CENTER.P. O. BOX 1476 BALTIMORE, MARYLAND 21203 ARTHun E. LUNOVALL. Jm.
Vict PRESIDENT Supply Director of Nuclear Reactor Regulation Attention: Mr. 3. R. Miller, Chief Operating Reactors Branch #3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20535
Subject:
Calvert Cliffs Nuclear Power Plant Units Nos.1 & 2; Dockets Nos. 50-317 and 50-318 Masonry Wall Design, I&E Bulletin 80-11 Gentlemen:
Your letter dated November 21, 1984, requested that Baltimore Gas and Electric Company provide additional information justifying the use of the energy balance technique for qualifying certain masonry walls at Calvert Cliffs. You provided a copy of the Structural and Geotechnical Engineering Branch (SGEB) staff position which endorses three options for confirming the acceptability of the energy balance techniquetby engineering analysis, testing or a combination thereof. Alternately, you requested that we provide a schedule for modifying the subject walls.
We have reviewed each of the options presented in the SGEB staff position and have determined that at least one of the suggested approaches may lead to a resolution of this issue at an overall cost less than that associated with modifying the walls.
In addition, we suspect there are other equally cogent approaches for demonstrating the validity of the energy balance technique.
As you are well aware, this is a complex technical issue which has been the subject of considerable discussion between the NRC staff and affected utilities over the past few years. In view of this complexity and the potential costs involved in reaching agreement on this issue, we will require an additional 90 days to develop and submit our response. We suspect that our response will include a recommendation for a meeting with members of SGEB staff and their consultant.
If you should have any questions concerning this matter, please do not hesitate to contact us.
8501080209 841227 Very truly yours,'
r/
PDR ADOCK 05000317
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Ag v
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AEL/BSM/vf cc: D. A. Brune, Esq.
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G. F. Trowbridge, Esq.
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Mr. D. H. Jaffe, NRC Mr. T. Foley, NRC 1 0