ML13330B438
| ML13330B438 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/02/1988 |
| From: | Murley T Office of Nuclear Reactor Regulation |
| To: | Allen H SOUTHERN CALIFORNIA EDISON CO. |
| References | |
| CON-IIT05-271-90, CON-IIT5-270-90, CON-IIT5-271-90, CON-IT5-271-90 GL-88-12, GL-88-17, NUDOCS 8812150134 | |
| Download: ML13330B438 (5) | |
Text
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Docket Nos. 50-206 DISTRIBUTION:
50-361 Docket Files OGC 50-362 DEC 2 1988 NRC & Local PDR EJordan PD5 R/F BGrimes TMurley ACRS (10)
Mr. Howard P. Allen DCrutchfield Chairman of the Board GHolahan Southern California Edison Company MVirgilio 2244 Walnut Grove Avenue GKnighton P.O. Box 800 DHickman Rosemead, California 91770 CTrammell JLee
Dear Mr. Allen:
SUBJECT:
LOSS OF DECAY HEAT REMOVAL We have just issued Generic Letter 88-17 which addresses loss of decay heat removal (DHR) during nonpower operation.
This letter was issued because of the potential serious consequence of loss of shutdown cooling concurrent with significant core decay heat. Further, it is our belief that the industry as a whole has not aggressively responded to resolve the concern following its identification in our earlier Generic Letter 87-12. In particular, the industry's response to the Generic Letter 87-12 was deficient in the areas of (1) prevention of accident initiation, (2) mitiga tion of accidents before they potentially progress to core damage, and (3) control of radioactive material if a core damage accident should occur.
Generic Letter 88-17 prescribes expeditious actions which should immediately ease the concern, and parallel, but longer term, programmed enhancements which effectively address the root cause of the problems and permit greater flexi bility in operation.
We consider this issue to be of high priority and request that you assure that your organization addresses it accordingly.
Sincerely, Original signed by Thomas E. Murley Thomas E. Murley, Director Office of Nuclear Reactor Regulation cc:
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Docket Nos. 50-206 DISTRIBUTION:
50-361 Docket Files OGC 50-362 NRC & Local PDR EJordan PD5 R/F BGrimes TMurley ACRS (10)
Mr. Howard P. Allen DCrutchfield Chairman of the Board GHolahan Southern Caifornia Edison Company MVirgilio 2244 Walnut Grove Avenue GKnighton P.O. Box 800 \\
DHickman Rosemead, California 91770 CTrammell
.JLee
Dear Mr. Allen:
SUBJECT:
LOSS OF DECAY HEAT REMOVAL We have just issued Generc Letter 88-17 which addresses loss of decay heat removal (DHR) during nonpower operation.
This letter was issued because of the potential serious consequence of loss of shutdown cooling concurrent with significant core decay heat. Further, it is our belief that the industry as a whole has not aggressively responded to resolve the concern following its\\identification in our earlier Generic Letter 87-12. In particular, the industryks response to the Generic Letter 87-12 was deficient in the areas of (1) prevention of accident initiation, (2) mitiga tion of accidents before they potentl.ibly progress to core damage, and (3) control of radioactive material if a core damage accident should occur.
Generic Letter 88-17 prescribes expeditious actions which should immediately ease the concern; and parallel, but longer\\term, programmed enhancements which effectively address the root cause of the problems and permit greater flexi bility in operation.
We consider this issue to be of high priority and request that you assure that your organization addresses it accordingly.
Sincerely, Thomas E. Murley, Director Office of Nuclear Reactor 'Regulation cc:
See next page ADP DONRR DCrutchfield TMurley 10/ /88 10/
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/PD5:PM DRSP/PD5:PM DRSP/PD:D ADR DRP/DRSP C a mell DHickman GKnighton MVirgilio GHolahan 10
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RE UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 DEC 2 1988 Docket Nos. 50-206 50-361 50-362 Mr. Howard P. Allen Chairman of the Board Southern California Edison Company 2244 Walnut Grove Avenue P.O. Box 800 Rosemead, California 91770
Dear Mr. Allen:
SUBJECT:
LOSS OF DECAY HEAT REMOVAL We have just issued Generic Letter 88-17 which addresses loss of decay heat removal (DHR) during nonpower operation.
This letter was issued because of the potential serious consequence of loss of shutdown cooling concurrent with significant core decay heat. Further, it is our belief that the industry as a whole has not aggressively responded to resolve the concern following its identification in our earlier Generic Letter 87-12. In particular, the industry's response to the Generic Letter 87-12 was deficient in the areas of (1) prevention of accident initiation, (2) mitiga tion of accidents before they potentially progress to core damage, and (3) control of radioactive material if a core damage accident should occur.
Generic Letter 88-17 prescribes expeditious actions which should immediately ease the concern, and parallel, but longer term, programmed enhancements which effectively address the root cause of the problems and permit greater flexi bility in operation.
We consider this issue to be of high priority and request that you assure that your organization addresses it accordingly.
Sincerely, Thomas E. Murley, Director Office of Nuclear Reactor Regulation cc:
See next page
Mr. Kenneth P. Baskin San Onofre Nuclear Generating Southern California Edison Company Station, Unit No. 1 cc Charles R. Kocher, Assistant Mr. Jack McGurk, Acting Chief General Counsel Radiological Health Branch James Beoletto, Esquire State Department of Health Southern California Edison Company Services Post Office Box 800 714 P Street, Office Bldg. 8 Rosemead, California 91770 Sacramento, California 95814 David R. Pigott Mr. Hans Kaspar, Executive Director Orrick, Herrington & Sutcliffe Marine Review Committee, Inc.
600 Montgomery Street 531 Encinitas Boulevard, Suite 105 San Francisco, California 94111 Encinitas, California 92024 Mr. Robert G. Lacy Manager, Nuclear San Diego Gas & Electric Company P. 0. Box 1831 San Diego, California 92112 Resident Inspector/San Onofre NPS 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 1600 Pacific Highway Room 335 San Diego, California 92101 Director Energy Facilities Siting Division Energy Resources Conservation &
Development Commission 1516 - 9th Street Sacramento, California 95814 Regional Administrator, Region V U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596
00 Mr. Kenneth P. Baskin San Onofre Nuclear Generating Southern California Edison Company Station, Units 2 and 3 cc:
Mr. Gary D. Cotton Mr. Hans Kaspar, Executive Director Senior Vice President Marine Review Committee, Inc.
Engineering and Operations 531 Encinitas Boulevard, Suite 105 San Diego Gas & Electric Company Encinitas, California 92024 101 Ash Street Post Office Box 1831 San Diego, California 92112 Mr. Mark Medford Southern California Edison Company Charles R. Kocher, Esq.
2244 Walnut Grove Avenue James A. Beoletto, Esq.
P. 0. Box 800 Southern California Edison Company Rosemead, California 91770 2244 Walnut Grove Avenue P. 0. Box 800 Mr. Robert G. Lacy Rosemead, California 91770 Manager, Nuclear Department San Diego Gas & Electric Company Orrick, Herrington & Sutcliffe P. 0. Box 1831 ATTN:
David R. Pigott, Esq.
San Diego, California 92112 600 Montgomery Street San Francisco, California 94111 Richard J. Wharton, Esq.
University of San Diego School of Alan R. Watts, Esq.
Law Rourke & Woodruff Environmental Law Clinic 701 S. Parker St. No. 7000 San Diego, California 92110 Orange, California 92668-4702 Charles E. McClung, Jr., Esq.
Attorney at Law Mr. S. McClusky 24012 Calle de la Plaza/Suite 330 Bechtel Power Corporation Laguna Hills, California 92653 P. 0. Box 60860, Terminal Annex Los Angeles, California 90060 Regional Administrator, Region V U.S. Nuclear Regulatory Commission Mr. C. B. Brinkman 1450 Maria Lane/Suite 210 Combustion Engineering, Inc.
Walnut Creek, California 94596 7910 Woodmont Avenue, Suite 1310 Bethesda, Maryland 20814 Resident Inspector, San Onofre NPS c/o U. S. Nuclear Regulatory Commission Mr. Dennis F. Kirsh Post Office Box 4329 U.S. Nuclear Regulatory Commission San Clemente, California 92672 Region V 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Mr. Sherwin Harris Resource Project Manager Public Utilities Department City of Riverside City Hall 3900 Main Street Riverside, California 92522