ML13303B264
| ML13303B264 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 02/05/1991 |
| From: | Kokajko L Office of Nuclear Reactor Regulation |
| To: | Cotton G, Ray H SAN DIEGO GAS & ELECTRIC CO., SOUTHERN CALIFORNIA EDISON CO. |
| Shared Package | |
| ML13303B266 | List: |
| References | |
| NUDOCS 9102080045 | |
| Download: ML13303B264 (3) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 04 February 5, 1991 Docket No. 50-361 Mr. Harold B. Ray Mr. Gary D. Cotton Senior Vice President Senior Vice President Southern California Edison Co.
Engineering and Operations Irvine Operations Center San Diego Gas & Electric Co.
23 Parker Street 101 Ash Street I
Irvine, California 92718 San Diego, California 92112 Gentlemen:
SUBJECT:
INADVERTENT CONTAINMENT SPRAY EVENTS AT COMMERCIAL NUCLEAR POWER PLANTS As a result of the inadvertent containment spray event that occurred at San Onofre Nuclear Generating Station, Unit No. 2.(SONGS-2), on November 20, 1990, the NRC staff performed a review to determine the appropriate course of action for licensees to take following an event of this nature and to determine if the actions taken by Southern California Edison Company (SCE) were appropriate following the November 20 eveit. Our Safety Evaluation (SE) is enclosed for your information.
Based on the results of our review, we have determined that the actions taken by SCE in response to the November 20 containment spray event at SONGS-2 were appropriate in most respects. However, as we discuss in Section 6.0 of our SE, it is not apparent that SCE completed a detailed review of Technical Specification requirements following this event, and your planned review of industry experience should nut be narrowly focused on previous containment spray events but should also include a review industry experience and NRC generic communications that may be relevant. While we expect you to correct these weaknesses in your evaluation, we do not require a written response from yuu specifically identifying the corrective actions that you have taken.
As we state in our SE, the staff's position is based in part on an abbreviated review of industry experience as it may relate to containment spray events.
However, it is our understanding that SCE will complete a more detailed review of industry experience as part of its continuing evaluation of the November 20 event. Therefore, you are requested to submit the details and results of your review in this regard for our information when you have completed this action.
The staff will review this information to assure that the NRC position on this matter remains valid. Your response, or your schedule for providing your response, is requested within 60 days of the date of this letter.
fN/
PD ADOCK 05000361 070016
Messrs. Ray and Cotton
- 2 The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, O inal Signed By:
Lawrence E. Kokajko, Project Manager Project Directorate V Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation
Enclosure:
As stated DISTRIBUTION Docket File NRC & LPDRs PD5 Reading PD5 Plant BBoger MVirgilio DFoster LKokajko EJordan ACRS (10)
OGC JTatum RZimmerman, RV AHon CCaldwell PJohnson DProulx MDavis OFC
- LA/PD5/DRPW
- PM/PD PW
- D/PD5/DRPW NAME
- DFoster okajko:pm
- JDyer DATE
- 2'/ t/91
- 7,/S/91
- / 791 OFFICIAL RECORD COPY Document Name:
S02 CONTAINMENT SPRAY EVENTS
Messrs. Ray and Cotton San Onofre Nuclear Generating Southern California Edison Company Station, Unit No. 2 cc:
James A. Beoletto, Esq.
Mr. Richard J. Kosiba, Project Manager Southern California Edison Company Bechtel Power Corporation Irvine Operations Center 12440 E. Imperial Highway 23 Parker Street Irvine, California 92718 Mr. Robert G. Lacy Chairman, Board of Supervisors Manager, Nuclear Department County of San Diego San Diego Gas & Electric Company 1600 Pacific Highway, Room 335 P. 0. Box 1831 San Diego, California 92101 San Diego, California 92112 Alan R. Watts, Esq.
Mr. John Hickman Rourke & Woodruff Senior Health Physicist 701 S. Parker St. No. 7000 Environmental Radioactive Mgmt. Unit Orange, California 92668-4702 Environmental Management Branch State Department of Health Services Mr. Sherwin Harris 714 P Street, Room 616 Resource Project Manager S
Public Utilities Department City of Riverside Resident Inspector, San Onofre NPS 3900 Main Street co U.S. Nuclear Regulatory Commission Riverside, California 92522 Post Office Box 4329 San Clemente, California 92672 Mr. Charles B. Brinkman Combustion Engineering, Inc.
Mayor 12300 Twinbrook Parkway, Suite 330 City of San Clemente Rockville, Maryland 20852 100 Avenida Presidio San Clemente, California 92672 Mr. Phil Johnson Regional Administrator, Region V U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission Region V 1450 Maria Lane, Suite 210 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Walnut Creek, California 94596 Mr. Don J. Womeldorf Chief, Environmental Management Branch California Department of Health Services 714 P Street, Room 616 Sacramento, California 95814 (13)