ML16342A590
| ML16342A590 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 12/01/1998 |
| From: | Steven Bloom NRC (Affiliation Not Assigned) |
| To: | Rueger G PACIFIC GAS & ELECTRIC CO. |
| Shared Package | |
| ML16342A591 | List: |
| References | |
| GL-95-07, GL-95-7, TAC-M93456, TAC-M93457, NUDOCS 9812040002 | |
| Download: ML16342A590 (4) | |
Text
December 1,
1998 Mr. GregoryM. Rueger Senior Vice President and General Manager Pacific Gas and Electric Company Diablo Canyon Nuclear Power Plant P. O. Box 3 Avila Beach, California 93424-
SUBJECT:
SAFETY EVALUATIONOF LICENSEE RESPONSE TO GENERIC LETTER 95-07, "PRESSURE LOCKINGAND THERMALBINDINGOF SAFETY-RELATED POWER-OPERATED GATE VALVES,"DIABLOCANYON NUCLEAR POWER PLANT, UNITS 1 AND 2 (TAC NOS. M93456 AND M93457)
Dear Mr. Rueger:
On August 17, 1995, the NRC issued Generic Letter (GL) 95-07, "Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves," to request that licensees take actions to ensure those safety-related power-operated gate valves that are susceptible to pressure locking or thermal binding are capable of performing their safety functions.
By letter of October 11, 1995, Pacific Gas and Electric Company submitted its 180-day response to GL 95-07 for Diablo Canyon Nuclear Power Plant, Units 1 and 2. The NRC staff reviewed the licensee's submittal and requested additional information in a letter dated June 5, 1996.
By letter of July 12, 1996, the licensee provided the additional information requested by the staff.
The staff has reviewed the licensee's submittals and finds that the licensee has adequately addressed the actions requested in GL 95-07, as discussed in the enclosed safety evaluation.
Sincerely, Original Signed By Steven D. Bloom, Project Manager Project Directorate IV-2 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation
//
Docket Nos. 50-275 and 50-323
Enclosure:
Safety Evaluation ccw/encl: See next page Document Name:
DC93456.SE
~STIM Docket PUBLIC PDIV-2 Reading EAdensam (EGA1)
WBateman SBloom EPeyton RWessman OGC ACRS PGwynn, RIV GPick, RIV OFC NAME PDI -2 I
m PDIV-2 EPeyto DATE 1
I /98 11 PO/98 OFFICIAL RECORD COPY 98i2040002 98i20i PDR ADQCK 05000275 P
0
't
Mr. Gregory. M. Rueger December 1,
1998 cc w/encl:
NRC Resident Inspector Diablo Canyon Nuclear Power Plant do U.S. Nuclear Regulatory Commission P. O. Box 369 Avila Beach, California 93424 Dr. Richard Ferguson, Energy'Chair Sierra Club California 1100 11th Street, Suite 311 Sacramento, California 95814 Ms. Nancy Culver San Luis Obispo Mothers for Peace P. O. Box 164 Pismo Beach, California 93448 Chairman
'an Luis Obispo County Board of Supervisors Room 370 County'Government Center San Luis Obispo, California 93408 Mr. Truman Burns Mr. Robert Kinosian California Public Utilities Commission 505 Van Ness, Room 4102 San Francisco, California 94102 Mr. Steve Hsu, Radiologic Health Branch State Department of Health Services Post Office Box 942732 Sacramento, California 94232 Diablo Canyon Independent Safety Committee ATTN: Robert R. Wellington, Esq.
Legal Counsel 857 Cass Street, Suite D Monterey, California 93940 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower 8 Pavillion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Christopher J. Warner, Esq.
Pacific Gas 8 Electric Company Post Office Box 7442 San Francisco, California 94120 Mr. David H. Oatley, Vice President Diablo Canyon Operations and Plant Manager Diablo Canyon Nuclear Power Plant P.O. Box 3 Avita Beach; California 93424 Telegram-Tribune ATTN: Managing Editor 1321 Johnson Avenue P.O. Box 112 San Luis Obispo, California 93406
C I