ML19350C458
| ML19350C458 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 02/17/1981 |
| From: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-11, NUDOCS 8104010797 | |
| Download: ML19350C458 (1) | |
Text
1 Yk BALTIMORE GAS AND ELECTRIC COMPANY P. O. B O X 1475 BALTIM O R E', M ARYLAN D 21203 February 17, 1981 ARTHUR E. LUNDVALL,dR.
vice Passiot=v g
S umpty Mr. Boyce II. Grier, Director
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7 Region I, Office of Inspection and Enforcement
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U.S. Nuclear Regulatory Commission g'
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631 Park Avenue
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Subject:
Calvert Cliffs Nuclear Power Plant
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Units Nos. 1 and 2 IE Bulletin No. 80-11
Reference:
(1) BGCE Letter dated July 3, 1980 from A. E. Lundvall, Jr. to Boyce II. Grier (2) BGCE Letter dated September 23, 1980 from A. E. Lundvall, Jr. to Boyce 11. Grier (3) BGEE Letter dated November 6, 1980 from A. E. Lundvall, Jr. to Boyce II. Grier (4) BGEE Letter dated January 9, 1981 from A. E. Lundvall, Jr. to Boyce II. Grier
Dear Mr. Grier:
During the most recent review of our procedures and calculations used for the response to the subject bulletin, it was found that an assumption con-cerning the distribution of inertial loads could reduce the 2.aservatism pre-viously implied.
Utilizing this approach and rechecking the calculations, it was found that in all cases the reevaluation criteria are satisfied. All walls remain acceptable with stresses slightly higher than previously reported.
Attachments B, " Wall Summary," D, " Reevaluation Criteria," E, "Commen-tary on Reevaluation," and F, "Results of Reevaluation," previously submitted to you, are being revised to reflect results of the calculations which are being redone on a number of the walls. These attachments will be resubmitted by April 1, 1981.
Very t y you
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cc:
J. A. Biddison, Esquire rq -
G. F. Trowbridge, Esquire
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Messrs. E. L. Conner, Jr. - NRC J. C. Ventura - Bechtel Office of Inspection & Enforcement U.S. Nuclear Regulatory Commission Division of Reactor Construction Inspection Washington, DC 20555-Mr. R. E. Architzel, Resident-Inspector, Calvert Cliffs 8104010797
.