ML16341F029
| ML16341F029 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/09/1989 |
| From: | Rood H Office of Nuclear Reactor Regulation |
| To: | Shiffer J PACIFIC GAS & ELECTRIC CO. |
| References | |
| TASK-2.K.3.05, TASK-TM GL-83-10, GL-83-10C, GL-85-12, TAC-60901, TAC-68048, NUDOCS 8903200043 | |
| Download: ML16341F029 (8) | |
Text
March 9, 1989 Docket Nos.
50-275 and 50-323 DISTRIBUTION (jT.'ll.l.h-
, NRC 8
LPDRs MVirgilio Mr. J.
D. Shiffer, Vice President HRood
'Knighton Nuclear Power Generation JLee EJordan c/o Nuclear Power Generation, Licensing BGrimes ACRS(10)
Pacific Gas and Electric Company "PDV PlantFile GHodges 77 Beale Street, Room 1451
'GC (for'nfo only).
'an Francisco, California 94106 ',. ',
AWang SLWu
Dear Mr. Shiffer:
DJaffe
SUBJECT:
CLOSEOUT OF GENERIC LETTER 85-12, "IMPLEMENTATION OF TMI ACTION ITEM II.K.3.5, AUTOMATIC TRIP OF REACTOR'COOLANT PUMPS" (TAC NOS.
60901 AND 68048, MULTIPLANT ACTION G-01)
On June 28, 1985, Generic Letter (GL) 85-12 was issued to all applicants and licensees with Westinghouse-designed nuclear steam supply systems.
This letter generically approved the Westinghouse Owner's Group (WOG)'eactor coolant pump (RCP) trip criteria that had been submitted by" the WOG in response to Generic Letter 83-10c and d.
GL 85-12 also provided guidance concerning implementation of the approved RCP trip criteria.
Specifically,Section IV of the generic safety evaluation included in GL 85-12 requested that applicants and licensees provide plant-specific RCP trip criteria to supplement the information previously submitted under the WOG generic program.
On this basis, the NRC staff concludes that the RCP trip issue in TMI Action Plan Item II.K.3.5 has been satisfactorily resolved for Diablo Canyon Units 1
and 2.
With this letter, the staff concludes its efforts on Generic Letter 85-12, Multiplant Action G-01, TMI Action Plan Item II.K.3.5, and TAC NOS.
60901 and 68048.
If you have any questions regarding this matter, please contact us.
By letters dated August 26 and December 24, 1985, you responded to Generic Letter 85-12.
Based on its initial review of these submittals the NRC staff issued a preliminary evaluation transmitted to you by [[letter::05000275/LER-1986-010, :on 860829,reactor Trip & Subsequent Turbine Trip Occurred Due to Reactor Trip Breaker Inadvertently Opening During Testing.Caused by Loose Termination on Coil of Undervoltage Shunt Trip Relay|letter dated November 25, 1986]].
As a result of subsequent review of plant-specific information for Diablo Canyon and other plants, the staff has concluded that the WOG methodologies have significantly improved reactor safety, and the staff has no major safety-significant concerns about the plant-specific information.
8903200043 890309'DR ADOCN 05000275 P
PNU E
S incerely, original signed by Marry Rood, Senior Project Manager Project Directorate V
Division of Reactor Projects - III, IV, V and Special Projects cc:
See next page ORSP/PD5~
HRood 03/0 /89 DR G
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UNITED STATES 1
NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 March 9, 1989 Docket Nos. 50-275 and 50-323 Mr. J.
D. Shiffer, Vice President Nuclear Power Generation c/o Nuclear Power Generation, Licensing Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106
Dear Mr. Shiffer:
SUBJECT:
CLOSEOUT OF GENERIC LETTER 85-12, "IMPLEMENTATION OF TMI ACTION ITEM II.K.3.5, AUTOMATIC TRIP OF REACTOR COOLANT PUMPS" (TAC NOS.
60901 AND 68048, MULTIPLANT ACTION G-01)
On June 28, 1985, Generic Letter (GL) 85-12 was issued to all applicants and licensees with Westinghouse-designed nuclear steam supply systems.
This letter generically approved the Westinghouse Owner's Group (WOG) reactor coolant pump (RCP) trip criteria that had been submitted by the WOG in response to Generic Letter 83-10c and d.
GL 85-12 also provided guidance concerning implementation of the approved RCP trip criteria.
Specifically,Section IV of the generic safety evaluation included in GL 85-12 requested that applicants and licensees provide plant-specific RCP trip criteria to supplement the information previously submitted under the WOG generic program.
By letters dated August 26 and December 24, 1985, you responded to Generic Letter 85-12.
Based on its initial review of these submittals the NRC staff issued a preliminary evaluation transmitted to you by [[letter::05000275/LER-1986-010, :on 860829,reactor Trip & Subsequent Turbine Trip Occurred Due to Reactor Trip Breaker Inadvertently Opening During Testing.Caused by Loose Termination on Coil of Undervoltage Shunt Trip Relay|letter dated November 25, 1986]].
As a result of subsequent review of plant-specific information for Diablo Canyon and other plants, the staff has concluded that the WOG methodologies have significantly improved reactor safety, and the staff has no major safety-significant concerns about the plant-specific information.
On this basis, the NRC staff concludes that the RCP trip issue in TMII Action Plan Item II.K.3.5 has been satisfactorily resolved for Diablo Canyon Units 1
and 2.
With this letter, the staff concludes its efforts on Generic Letter 85-12, Multiplant Action G-Ol, TMI Action Plan Item II.K.3.5, and TAC NOS.
60901 and 68048.
If you have any questions regarding this matter, please contact us.
Sincerely, Harry Rood, Senior Project Manager Project Directorate V
Division of Reactor Projects - III, IV, V and Special Projects cc:
See next page
Mr. J.
D. Shiffer Pacific Gas and Electric Company Diablo Canyon CC:
Richard F. Locke, Esq.
Pacific Gas 8 Electric Company Post Office Box 7442 San Francisco, California 94120 Janice E. Kerr, Esq.
California Public Utilities Commission 350 HcA11ister Street San Fr ancisco, California 94102 Ms. Sandra A. Silver 660 Granite Creek Road Santa Cruz, California 95065 Mr e W. C. Gangloff Westinghouse Electric Corporation P. 0.
Box 355 Pittsburgh, Pennsylvania 15230 Managing Editor San Luis Obis o Count Tele ram Tr une 13~1Jo neon Avenue P. 0.
Box 112 San Luis Obispo, California 93406 Mr. Leland M. Gustafson, Manager Federal Relations Pacific Gas and Electric Company 1726 M Street, N.
W.
Washington, DC 20036-4502 Dian M. Grueneich Marcia Preston Law Office of Dian H. Grueneich 380 Hayes Street, Suite 4
San Francisco, California 94102 NRC Resident Inspector Diablo Canyon Nuclear Power Plant c/o U.S. Nuclear Regulatory Commission P. 0.
Box 369 Avila Beach, Cali for nia 93424 Mr. Dick Blakenburg Editor 5 Co-Publisher South County Publishing Company P. 0.
Box 460 Arroyo Grande, California 93420 Bruce Norton, Esq.
c/o Richard F. Locke, Esq.
Pacific Gas and Electric Company Post Office Box 7442 San Francisco, California 94120 Dre R. B. Ferguson Sierra Club - Santa Lucia Chapter Roc'anyon Star Route Creston, California 93432 Chairman San Luis Obispo County Board of Supervisors Room 270 County Government Center San Luis Obispo, California 93408 Director Energy Facilities Siting Division Energy Resources Conservation and Development Commission 1516 9th Street Sacramento, California 95814 Hs. Jacquelyn Wheeler 3033 Barranca Court San Luis Obispo, California 93401
Pacific Gas IW Electric Company Diablo Canyon CC:
Ms. Laurie McDermott, Coor dinator Consumers Organized for Defense of Environmental Safety 731 Pacific Street, Suite 42 San Luis Obispo, California 93401 Mr. Paul Szalinski, Chief Radiological Health Branch State Department of Health Services 714 P Street, Office Building 88 Sacramento, Ca lifor nia 95814
~
Regional Administrator, Region V
U.S. Nuclear Regulatory Commission 1450 Maria Lane Suite 210 Walnut Creek, California 94596 Ms. Nancy Culver 192 Luneta Street San Luis Obispo, California 93401 President California Public Utilities Commi ss ion California State Building 350 McAllister Street San Francisco, California 94102 Michael M. Strumwasser, Esq.
Special Assistant Attorney General State of California Department of Justice 3580 Wilshire Boulevard, Poom 800 Los Angeles, California 90010
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