ML20012A047
| ML20012A047 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 02/26/1990 |
| From: | Dromerick A Office of Nuclear Reactor Regulation |
| To: | Fitzpatrick E GENERAL PUBLIC UTILITIES CORP. |
| Shared Package | |
| ML20012A048 | List: |
| References | |
| TAC-49392, TAC-49394, NUDOCS 9003080191 | |
| Download: ML20012A047 (2) | |
Text
{{#Wiki_filter:_, y February 26, 1990 P- . Docket' No. 50 219 'Mr. E. E. Fitzpatrick Vice President and Director Oyster Creek Nuclear Generating Station Post Office Box 388. I Forked River, New Jersey 08731 -{ i
Dear Mr. Fitzpatrick:
SUBJECT:
EVALUATION OF DIESEL GENERATOR BUILDINGS SUBJECTED TO TORNADO. WIND GENERATED LOADING - OYSTER CREEK (TAC NOS. 49392 AND 49394) The NRC staff has completed the review of the Diesel Generator Vaults and Oil Tank Compartment subjected to tornado wind generated loadings. Based on the prior reviews by the NRC staff (1983 to 1988), the recent j responses to the staff request for additional information, and audit of some i of GPU Nuclear Corporation's (GPUN) calculations, the staff concludes that the walls of the diesel generator vaults and the oil tank compartment are capable 1 of withstanding the loads generated by a tornado having a windspeed of 168 i miles per hour. The staff agrees with GPUN's contention that the probability of a missile hitting the lyop-or entry.through the roof targets is very low (i.e...in the order of 10' ). The probability of exceedance associated with thetornadowindsgeedof168milesperhourasestimatedbythestaffisin the order of 7x10' per year. For an SEP plant such as Oyster Creek this is . acceptable. However, the staff requires that GPUN provide adequate protection of the outside fuel supply line against the potential missile strike irrespective of.the probability consideration. Another reliable method of assuring that fuel will be supplied to diesel generators in the event of a supply line break l can also be acceptable. Our Safety Evaluation regarding this matter is enclosed. We request that you respond within 30 days of receipt of this letter indicating your intent to comply with this requirement and submit the details of your intended action for staff' review. Sincerely, /s/ Alexander W. Dromerick, Senior Project Manager Project Directorate 1 4-9003080191 900226 Division of Reactor Projects - 1/II fDR ADOCK 050 9 Office of Nuclear Reactor Regulation
Enclosure:
0\\ As stated cc/w enclosure: See next page T ocketEFile,n' NRC & Local PDRs Plant File S. Varga (14E4) DISTRIBUTION D B.Boger(14A2) S. Norris A. Dromerick OGC E. Jordan (PNBB 3302) ACRS (10) 0FC
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OFFICIAL HtCURD COPY
I5 3.L,. fir'. E. E.-Fitzpatrick Oyster Creek Nuclear .0yster Creek Nuclear Generating Station Generating Station cc: ] Ernest L. Blake, Jr. Resident Inspector i Shaw, Pittman, Potts and Trowbridge e/o U.S. NRC 2300 N Street, NW Post Office Box 445 Washington, D.C. 20037 Forked River, New Jersey 08731 ~J.B. Liberman, Esquire Comissioner Bishop, Liberman, Cook, et al. New Jersey Department of Energy 1155 Avenue of the Americas 101 Comerce Street [ New York, New York 10036 Newark, New Jersey 07102 Kent Tosch, Chief Regional Aditinistrator, Region I New Jersey Department of Environmental U.S. Nuclear Regulatory Comission Protection 475 Allendale Road Bureau of Nuclear Engineering King of Prussia, Pennsylvania 19406 CN 415. Trenton, New Jersey 08625 BWR Licensing Manager GPU Nuclear. Corporation-1 Upper Pond Roaa Parsippany, New Jersey 07054 Deputy Attorney General State of New Jersey Department of Law and Public Safety . 36 West State Street - CN 112 Trenton, New Jersey 08625 Mayor Lacey Township 818 West Lacey Road Forked River, New Jersey 08731 Licensing Manager Oyster Creek Nuclear Generating Station Mail Stop: Site Emergency Bldg. P. O. Box 388 Forked River, New Jersey 08731 .}}