ML13303B195
| ML13303B195 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 02/20/1990 |
| From: | Kokajko L Office of Nuclear Reactor Regulation |
| To: | Cotton G, Ray H San Diego Gas & Electric Co, Southern California Edison Co |
| Shared Package | |
| ML13303B196 | List: |
| References | |
| TAC-75500, TAC-75501 NUDOCS 9003080264 | |
| Download: ML13303B195 (4) | |
Text
Messrs Ray and Cotton 2-February 20, 1990 Since the issue appears to be controversial and is not safety related by is merely for the convenience of the licensee, the expenditure of staff resources for a complete review and evaluation is not justified.
Therefore, based upon the reasons stated above, your amendment request has been denied.
A copy of the Notice of Denial of Amendment to be published in the Federal Register is enclosed for your information.
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:
Notice cc w/enclosure:
See next page
E 0 1 UNITED STATES NUCLEAR REGULATORY COMMISSION o
0 CWASHINGTON, D. C. 20555 February 20, 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:
DENIAL OF AMENDMENT REQUEST PCN-302 FOR SAN ONOFRE NUCLEAR GENERATING STATION, UNIT NOS. 2 AND 3 (TAC NOS. 75500 AND 75501)
By letter dated November 2, 1989, you submitted an amendment request to revise the applicable Technical Specifications for Facility Operating License Nos.
NPF-10 and NPF-15. Specifically, the proposed amendment would revise Note (2) of Table 4.3-1, "Reactor Protective Instrumentation Surveillance Requirements."
The proposed amendment request was designated by you as PCN-302.
The proposed change would have revised the requirement to calibrate the linear power level and the Core Protection Calculator (CPC) power indications to a calorimetric power measurement. After careful review, the NRC staff has concluded that your request cannot be approved as submitted. The staff con cluded that the amendment request should be rejected for the following reasons:
This change has been requested by two CE digital plants (SONGS 2/3 and Waterford) to date. If this is to be proposed as a generic change for CPC plants, it should be initiated generically as a part of the ongoing improved Technical Specification effort.
Although the proposed change may cause the CPC's to have more conservative settings than presently required, the staff does not think it is good operating practice to have no limit on the amount by which the CPC power indications could exceed calorimetric power.
Safe operation dictates a more precise knowledge of true operating conditions at any given time.
If the proposed change were implemented, the plant would trip on, or before,.the time it trips with current procedures. In view of the current trend.toward eliminating spurious plant trips, this does not appear to be an acceptable proposal. One should provide assurance that spurious plant trips would not occur.
" 9003080264 900220 PDR ADOCK 05000361 P
PNU J
(4 Messrs Ray and Cotton February 20, 1990 Since the issue appears to be controversial and is not safety related by is merely for the convenience of the licensee, the expenditure of staff resources for a complete review and evaluation is not justified.
Therefore, based upon the reasons stated above, your amendment request has been denied.
A copy of the Notice of Denial of Amendment to be published in the Federal Register is enclosed for your information.
Sincerely, original signed by Lawrence E. Kokajko, Project Manager Project Directorate V Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
Notice cc w/enclosure:
See next page DISTRIBUTION Docket File NRC & LPDRs PD5 Reading JZwolinski PShea LKokajko OGC D. Hagan E. Jordan G. Hill (4)
Wanda Jones J. Calvo ACRS (10)
GPA/PA OC/LFMB PD5 Plant File Region V (4)
DRSP/PD SPfPD5 (A DRSP/D:PD5 PShe Koajko:dr CMTrammell 2//02
/90 2/d9
Messrs Ray and Cotton San Onofre Nuclear Generating Southern California Edison Company Station, Units 2 and 3 cc:
Charles R. Kocher, Esq.
Mr. F. B. Marsh, Project Manager James A. Beoletto, Esq.
Bechtel Power Corporation Southern California Edison Company P.O. Box 60860 Irvine Operations Center Terminal Annex 23 Parker Los Angeles, California 90060 Irvine, California 92718 Mr. Robert G. Lacy Orrick, Herrington & Sutcliffe Manager, Nuclear Department ATTN: David R. Pigott, Esq.
San Diego Gas & Electric Company 600 Montgomery Street P. 0. Box 1831 San Francisco, California 94111 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 Sacramento, California 95814 Public Utilities Department City of Riverside Resident Inspector, San Onofre NPS 3900 Main Street do U.S. Nuclear Regulatory Commission Riverside, California 92522 Post Office Box 4329 San Clemente, California 92672 Mr. Charles B. Brinkman Combustion Engineering, Inc.
Mayor, 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)