ML19250C168
| ML19250C168 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/31/1979 |
| From: | Eisenhut D Office of Nuclear Reactor Regulation |
| To: | Bauer E PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| References | |
| NUDOCS 7911080375 | |
| Download: ML19250C168 (3) | |
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UNITED STATES y
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NUCLEAR REGULATORY COMMISSION
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- E WASHINGTON, D. C. 20555 B'
g OCTOBER 3 1 1979 Docket Nos. 50-277 and 50-278 Mr. Edward G. Bauer, Jr.
Vice President and General Counsel
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Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101
Dear Mr. Bauer:
RE: ACCEPTANCE CRITERIA FOR THE MARK I CONTAINMENT LONG TERM PROGRAM The staff has completed its review of the generic aspects of the Mark I Containment Long Term Program (LTP).
The results of this review are reflected in the enclosed acceptance criteria, which are intended to be used to perform individual plant-unique analyses for each Mark I fac il ity.
These criteria have been developed from the staffas evaluation of the Mark I LTP L.oad Definition Report, P1 ant Unique Analysis Applf-cations Guide, and related suppression pool hyorodynamic experimental and analytical programs, which have been submitted by the Mark I Owners Group.
In developing these criteria, we have considered verbal comments provided by representatives of the Mark I Owners Group on a draft of the criteria
. issued August 2, 1979.
These comments were presented to the staff during a meeting held on August 15, 1979, and supplemented by additional information provided in a letter from General Electric dated September 7, 1979.
This information and internal comments by the staff and our consultants have resulted in some modifications to the draft criteria.
However, others of the Owners Group recommendations were not adopted for the NRC criteria, based on the staff',s judgment relative to the interpretation of specific data or analyses.
In certain cases, the staffas generic criteria identify specific hydro-dynamic load assessment techniques that will have to be evaluated on a plant-specific basis.
However, deviations from any other generic criteria should be avoided.
The criteria also identify additional experimental verification that must be obtained for " condensation oscillation" load uncertainty. This requirement was communicated to you earlier in our letter dated October 2, 1979.
in5 254 7911080y /g
Mr. Edward G. Bauer -
Within 30 days of your receipt of this letter, we request that you provide the schedule for submittal of. the LTP plant-unique analysis for your facility.
In developing this schedule, you should consider that we are continuing to target the completion of this program and the termination of the exemption issued for your facility for December 1980.
The staff presently expects to issue the generic Safety Evaluation Report supporting these criteria in December 1979.
Should you have any questions regarding this action contact C. Grimes (301-492-8204).
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. E se h
, A'cting Director Division of Operating Reactors
Enclosure:
As stated cc w/ enclosure:
See next page 1975 255
46 Mr. ' Edward G. Bauer, Jr.
Philadelphia Electric Company
-3 cc:
Eugene J. Bradley Philadelphia Electric Company Assistant General Counsel 2301 Market Street Philadelphia, Pennsylvania 19101 Troy B. Conner, Jr.
1747 Pennsylvania Avenue, N. W.
Washington, D. C.
20006 Raymond L. Hovis, Esquire 35 South Duke Street York, Pennsylvania 17401 Warren K. Rich, Esquire Assis' tant Attorney General Department of Natural Resources Annapolis, Maryland 21401 Government Publications Section State Library of Pennsylvania Education Building Commonwealth and Walnut Streets Harrisburg, Pennsylvania 17126 M. J. Cooney, Superintendent Generation Division - Nuclear Philadelphia Electric Company 2301' Market Street Philadelphia, Pennsylvania 19101 Edward Greenman U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Peach Bottom Atomic Power Station P. O. Box 399 Delta, Pennsylvania 17314 Phil'adelphia Electric Company ATTN: Mr. W. T. Ullrich Peach Bottom Atomic Power Station
' "5 256 Delta, Pennsylvania 17314