ML13324A625
| ML13324A625 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/24/1985 |
| From: | Zwolinski J Office of Nuclear Reactor Regulation |
| To: | Raskin K SOUTHERN CALIFORNIA EDISON CO. |
| Shared Package | |
| ML13324A626 | List: |
| References | |
| LSO5-85-04-033, LSO5-85-4-33, TAC-55928, NUDOCS 8504300333 | |
| Download: ML13324A625 (3) | |
Text
REG(,
0 1UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 April 24, 1985 Docket No. 50-206 LS0-85-04-033 Mr. Kenneth P. Raskin, Vice President Nuclear Engineering Safety and Licensing Department Southern California Edision Company 2244 Walnut Grove Avenue Post Office Rox 800 Rosemead, California 91770
Dear Mr. Baskin:
SURJECT:
INTAKE STRUCTURE CORROSION AND REPAIR Re:
San Onofre Nuclear Generating Station, Unit No. 1 The NRC staff has reviewed your October 18, 1984 submittal which forwarded the Bechtel Power Corporation report "Structural Evaluation and Repair of SONGS-1 Intake Structure" dated October 2, 1984.
The staff's safety evaluation is enc osed.
As discussed in the enclosed safety evaluation, there are two issues that have not been resolved.
- 1. A surveillance program should be provided that includes provisions for inspecting the pump well and the screen well during each refueling outage.
We note that you have committed to provide a surveillance program 90 days prior to the next refueling outage.
- 2. The results of an analysis of the intake structure under the assumption of dewatering and only one pump well being full has not been provided for NRC staff review.
These issues will be included in the Systematic Evaluation Program's Inteorated Assessment for San Onofre Unit No. 1.
850 4 3 00333 850424 PDR ADOCK 05000206 P
PDR-
3 0
Mr. Kenneth P. Baskin 2 -
April 24, 1985 Subject to the resolution of issues relative to the investigation of the effects of dewatering and only one pump well being full and the surveillance program, the staff finds that your evaluation and repair of the intake structure is adequate and the structure can withstand both normal operating loadings and postulated earthquake loads based on 0.67g maximum ground acceleration.
Sincerely, Will OWN W John A. Zwolinski, Chief Operating Reactors Branch No. 5 Division of Licensing
Enclosure:
Safety Evaluation cc w/enclosure:
See next page DISTRIBUTION Docket File NRC PDR Local PDR OELD EJordan BGrimes JPartlow ACRS (10)
HThompson CJamerson WPaulson CGrimes DL:ORB#5 DL Rlf#5 SEPB01 DL:ORB#5 CJamerson:,
WPaulson CGrimes JZwolinski 04/3./85 04/P Y/85 04/4/85 04/1,,k/85
Mr. Kenneth P. Baskin 3 -
April 24, 1985 cc Charles R. Kocher, Assistant Joseph 0. Ward, Chief General Counsel Radiological Health Branch James Beoletto, Esnuire State Department of Health Snuthern California Edison Company Services Post Office Box 800 714 P Street, Office Bldg. 8 Rosemead, California 91770 Sacramento, California 95814 David R. Pigott Orrick, Herrington & Sutcliffe 600 Montgomery Street San Francisco, California 94111 Dr. Lou Bernath San Diego Gas & Electric Company P. 0. Rox 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 Director Fnergv Facilities Sitina Division Energy Resources Conservation &
Development Commission 1516 -
9th Street Sacramento, California 95814 U.S. Environmental Protection Agency Region IX Office ATTN:
Regional Radiation Representative 215 Freemont Street San Francisco, California 94105 John B. Martin, Regional Administrator Nuclear Regulatory Commission, Region V 1450 Maria Lane Walnut Creek, California 94596