ML13303B217
| ML13303B217 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 05/29/1990 |
| From: | Kokajko L Office of Nuclear Reactor Regulation |
| To: | Cotton G, Ray H SAN DIEGO GAS & ELECTRIC CO., SOUTHERN CALIFORNIA EDISON CO. |
| Shared Package | |
| ML13303B218 | List: |
| References | |
| TAC-59139, TAC-59140, NUDOCS 9006010274 | |
| Download: ML13303B217 (3) | |
Text
May 29, 1990 Docket Nos. 50-361 and 50-362 Mr. Harold B. Ray Mr. Gary D. Cotton 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 Irvine, California 92718 San Diego, California 92112 Gentlemen:
SUBJECT:
SAFETY EVALUATION REPORT ON COMPLIANCE WITH 10 CFR 50.62 (ATWS RULE) REGARDING DIVERSE EMERGENCY FEEDWATER ACTUATION SYSTEM FOR SAN ONOFRE NUCLEAR GENERATING STATION, UNIT NOS. 2 AND 3 (TAC NOS.
59139 AND 59140)
By letter dated March 15, 1990, Southern California Edison Company submitted the plant-specific design of the Diverse Emergency Feedwater Actuation System (DEFAS) to be installed at San Onofre Units 2/3, to complete the 10 CFR 50.62 (ATWS Rule) implementation requirements. The staff has completed its review of the information submitted. Based upon this review, the staff has concluded that the proposed DEFAS design conforms to the requirements of 10 CFR 50.62, and is, therefore, acceptable. The safety evaluation is enclosed for your review.
However, the staff's conclusion is subject to the post implementation inspec tion at San Onofre Units 2/3. The inspection will audit the DEFAS software verification and validation process and the end-to-end test procedures as discussed in the safety evaluation.
Our safety evaluation sent to you in a letter dated January 30, 1990, closed a portion of the ATWS-related work. This letter, in conjunction with the January 30, 1990 missive, completes the safety evaluations related to 10 CFR 50.62.
Installation and implementation of ATWS-related equipment should proceed as previously discussed in past correspondence. The staff considers the licensing activities under the aforementioned TACs complete.
Sincerely,
--/s/
Lawrence -E.
Kokajko, Project Manager Project Directorate V Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
DISTRIBUTION As stated Docket File LKokajko HLi AHon NRC & LPDRs PKreutzer DLynch SRichards cc w/enclosure:
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NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 May 29, 1990 Docket Nos. 50-361 and 50-362 Mr. Harold B. Ray Mr. Gary D. Cotton 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 Irvine, California 92718 San Diego, California 92112 Gentlemen:
SUBJECT:
SAFETY EVALUATION ON COMPLIANCE WITH 10 CFR 50.62 (ATWS RULE)
REGARDING DIVERSE EMERGENCY FEEDWATER ACTUATION SYSTEM FOR SAN ONOFRE NUCLEAR GENERATING STATION, UNIT NOS. 2 AND 3 (TAC NOS.
59139 AND 59140)
By letter dated March 15, 1990, Southern California Edison Company submitted the plant-specific design of the Diverse Emergency Feedwater Actuation System (DEFAS) to be installed at San Onofre Units 2/3, to complete the 10 CFR 50.62 (ATWS Rule) implementation requirements. The staff has completed its review of the information submitted. Based upon this review, the staff has concluded that the proposed DEFAS design conforms to the requirements of 10 CFR 50.62, and is, therefore, acceptable. The safety evaluation is enclosed for your review.
However, the staff's conclusion is subject to the post implementation inspec tion at San Onofre Units 2/3. The inspection will audit the DEFAS software verification and validation process and the end-to-end test procedures as discussed in the safety evaluation.
Our safety evaluation sent to you in a letter dated January 30, 1990, closed a portion of the ATWS-related work. This letter, in conjunction with the January 30, 1990 missive, completes the safety evaluations related to 10 CFR 50.62.
Installation and implementation of ATWS-related equipment should proceed as previously discussed in past correspondence. The staff considers the licensing activities under the aforementioned TACs complete.
Sincerely, Lawrence E. Kokajko, Project Manager Project Directorate V Division of Reactor Projects -
- III, IV, V and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
As stated cc w/enclosure:
See next page
Mr. Harold B. Ray San Onofre Nuclear Generating Southern California Edison Company Station, Units 2 and 3 cc:
Charles R. Kocher, Esq.
Mr. Richard J. Kosiba, Project Manager James A. Beoletto, Esq.
Bechtel Power Corporation Southern California Edison Company 12440 E. Imperial Highway Irvine Operations Center Norwalk, California 90060 23 Parker Irvine, California 92718 Mr. Robert G. Lacy Manager, Nuclear Department Orrick, Herrington & Sutcliffe San Diego Gas & Electric Company ATTN:
David R. Pigott, Esq.
P. 0. Box 1831 600 Montgomery Street San Diego, California 92112 San Francisco, California 94111 Mr. John Hickman Alan R. Watts, Esq.
Senior Health Physicist Rourke & Woodruff Environmental Radioactive Mgmt. Unit 701 S. Parker St. No. 7000 Environmental Management Branch Orange, California 92668-4702 State Department of Health Services 714 P Street, Room 616 Mr. Sherwin Harris Sacramento, California 95814 Resource Project Manager Public Utilities Department Resident Inspector, San Onofre NPS City of Riverside do U.S. Nuclear Regulatory Commission 3900 Main Street Post Office Box 4329 Riverside, California 92522 San Clemente, California 92672 Mr. Charles B. Brinkman Mayor Combustion Engineering, Inc.
City of San Clemente 12300 Twinbrook Parkway, Suite 330 San Clemente, California 92672 Rockville, Maryland 20852 Regional Administrator, Region V Mr. Phil Johnson U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission 1450 Maria Lane/Suite 210 Region V Walnut Creek, California 94596 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Chairman, Board of Supervisors San Diego County Mr. Don Womeldorf 1600 Pacific Highway, Room 335 Chief, Environmental Management Branch San Diego, California 92101 California Department of Health 714 P Street, Room 616 Sacramento, California 95814 (14)