ML13316A604
| ML13316A604 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/23/1984 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Baskin K Southern California Edison Co |
| Shared Package | |
| ML13316A605 | List: |
| References | |
| LSO5-84-04-048, LSO5-84-4-48, NUDOCS 8404260165 | |
| Download: ML13316A604 (3) | |
Text
- j REGC UNITED STATES NUCLEAR.REGULATORY COMMISSION WASHING.TON, D. C. 20555 April 23, 1984 Docket No. 50-206 LS05-84-04-048 Mr. Kenneth P. Baskin Vice President, Nuclear Engineering Licensinq and Safety Department Southern California Edison Company 2244 Walnut Grove Avenue Post Office Box 800 Rosemead, California 91770
Dear Mr. Baskin:
SUBJECT:
BORON DILUTION DURING COLD SHUTDOWN AND REFUELING MODES Re:
San Onofre Nuclear Generating Station, Unit No. 1 The Commission has issued the enclosed Amendment No. 73 to Provisional Operating License No. DPR-13 for San Onofre Nuclear Generating Station, Unit No. 1. This amendment consists of changes to the Technical Specifications in response to your application dated July 20, 1983, as supplemented by letters dated September 7, 1983, October 25, 1983 and January 27, 1984.
The amendment modifies the Technical Specifications to (1) permit boron dilution when containment integrity is not intact if a shutdown margin greater than 5%0,k/k is maintained, and (2) change-the requirement for shutdown margin while the vessel head is not fully tensioned or is removed from a boron concentration of 2900 ppm to a shutdown margin of 5%
6k/k or a minimum boron concentration of 2,000 ppm, whichever is more restrictive.
A Notice of Consideration of Issuance of Amendment to License and Proposed No Significant Hazards Consideration Determination and Opportunity for Hearing related to the requested action was published in the Federal Register on November 22, 1983 (48 FR 52826).
No request for hearing or comments were received. The sUpplemental information submitted by letters dated October 25, 1983 and January 27, 1984 was provided in response to staff requests for clarification and for inclusion of an additional restriction in the Technical Specifications. Thus, the supplemental information did not expand the scope of the staff's notice for opportunity for hearing.
8404260165 40423 PDR ADOCK 05000206 P_____
Mr. Kenneth April 23, 1984 A copy of our related Safety Evaluation is also enclosed. This action will appear in the Commission's Monthly Notice publication in the Federal.Register.
Sincerely, Original signed by 1ames A. Lombardo for7 Dennis M. Crutchfield, Chief Operating Reactors Branch #5 Division of Licensing
Enclosures:
- 1. Amendment No. 73 to License No. DPR-13
- 2. Safety Evaluation cc w/enclosures:
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April 23, 1984 cc Charles R. Kocher, Assistant General Counsel James Beoletto, Esquire Southern California Edison Company Post Office Box 800 Rosemead, California 91770 David R. Pigott Orrick, Herrington & Sutcliffe 600 Montogmery Street San Francisco, California 94111 Dr. Lou Bernath San Diego Gas & Electric Company P. 0. Box 1831 San Diego, California 92112 Resident Inspector/San Onofre NPS c/o U.S. NRC P. 0. Box 4329 San Clemente, California 92672 Mayor City of San Clemente San Clemente, California 92672 Chairman Board of Supervisors County of San Diego San Diego, California 92101 California Department of Health ATTN:
Joseph 0. Ward, Chief Radiation Control Unit Radiological Health Section 714 P Street, Room 498 Sacramento, California 95814 U.S. Environmental Protection Agency Region IX Office ATTN:
Regional Radiation Representative 215 Freemont Street San Francisco, California 94111 John B. Martin, Regional Administrator Nuclear Regulatory Commission, Region V 145O Maria Lane Walnut Creek, California 94596