ML16341F900
| ML16341F900 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 12/06/1990 |
| From: | Rood H Office of Nuclear Reactor Regulation |
| To: | Shiffer J PACIFIC GAS & ELECTRIC CO. |
| References | |
| REF-GTECI-051, REF-GTECI-075, REF-GTECI-099, REF-GTECI-NI, TASK-051, TASK-075, TASK-099, TASK-51, TASK-75, TASK-99, TASK-OR GL-89-13, GL-90-03, GL-90-04, GL-90-3, GL-90-4, NUDOCS 9012120106 | |
| Download: ML16341F900 (8) | |
Text
Docket Nos. 50-275 and 50-323 Mr. J.
D. Shiffer Senior Vice President Nuclear Power Generation Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106
Dear Mr. Shiffer:
SUBJECT:
UNIMPLEMENTED GENERIC SAFETY ISSUES AT DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1
AND 2 On April 25, 1990 the staff issued Generic Letter 90-04 which requested information concerning the implementation status of certain generic safety issues (GSIs) at your facility.
Based on your responses to this Generic Letter dated June 28, 1990, our own records, and discussions with your staff, we have updated our database on GSI implementation status.
The results of this effort were presented to the Commission at a meeting on October 25, 1990.
The enclosures to this letter summarize the staff's understanding of the current status of those GSIs which remain unimplemented at Diablo Canyon.
We appreciate the assistance you provided in responding to Generic Letter 90-04 and we encourage your timely completion of those GSIs listed in the enclosures.
Please contact me if you have any questions or comments about the enclosed information.
Sincerely, gItgn@Se~<
'nclosures:
As stated cc:
See next page DISTRIBUTION Harry Rood, Senior Project Manager Project Directorate V
Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation MVirgilio ACRS (10)
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Mr. J. D. Shiffer Pacific Gas and Electric Company Diablo Canyon CC:
NRC Resident Inspector Diablo Canyon Nuclear Power Plant c/o U.S. Nuclear Regulatory Commission P. 0.
Box 369 Avila Beach, California 93424 Dr. Richard Ferguson, Energy Chair Sierra Club California 6715 Roc'anyon Creston, California 93432 Ms. Sandra A. Silver Mothers for Peace 660 Granite Creek Road Santa Cruz, California 95065 Bruce Norton, Esq.
c/o Richard F. Locke, Esq.
P. 0.
Box 7442 San Francisco, California 94120 Managing Editor The Count Tele ram Tribune 1
o nson Avenue P. 0.
Box 112 San Luis Obispo, California 93406 Chairman San Luis Obispo County Board of Supervisors Room 370 County Government Center San Luis Obispo, California 93408 Richard F. Locke, Esq.
Pacific Gas 8 Electric Company Post Office Box 7442 San Francisco, California 94120 Mr. John Hickman Senior Health Physicist Environmental Radioactive Mgmt. Unit Environmental Management Branch State Department of Health Services 714 P Street, Room 616 Sacramento, California 95814 Regional Adminstrator, Region V
U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Mr. Peter H. Kaufman Deputy Attorney General State of California 110 West A Street, Suite 700 San Diego, California 92101 Ms.
Nancy Culver 192 Luneta Street San Luis Obispo, California 93401 Michael M. Strumwasser, Esq.
Special Assistant Attorney General State of California Department of Justice 3580 Wilshire Boulevard, Room 800 Los Angeles, California 90010
UNIMPLEMENTED GSIs AT DIABLO CANYON NUCLEAR POWER PLANT UNIT 1 DOCKET NO. 50-275 ENCLOSURE I PROJECTED GSI IMKfMERTJG'ION NO.
TITLE DATE 51 Improving the Rel iabi1 ity 12/91 of Open-Cycle Service Water Systems REMARKS The licensee has stated that Unit I modifications to implement GL 89-13 recommendations will be completed by December 1991.
67.3.3 Improved Accident Monitoring 75 Item 2.2.2 - Vendor Interface for Safety Related Components 99 RCS/RHR Suction Line Valve Interlock on PWRs Unknown 05/91 05/91 The NRC staff position has been that licensees must install Category 2 qualified instrumentation to monitor accumulator tank level and pressure and =sump temperature.
However, the staff is currently re-evaluating this position.
No action by licensees is required until a staff decision on this issue is made.
By letter dated September 25, 1990, the licensee stated that it will fully implement programs to comply with the recommendations of GL 90-03 by
'ay I, 1991.
The licensee will provide hardware for RHR current trending by May 1991.
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UNIMPLEMENTED GSIs AT DIABLO CANYON NUCLEAR POWER PLANT UNIT 2 DOCKET NO. 50-323 ENCLOSURE 2 GSI NO.
TITLE PROJECTED IMPLEMENTATION REMARKS 67.3.3 Improved Accident Monitoring Unknown 51 Improving the Reliability 12/91 of Open-Cycle Service Water Systems The licensee has stated that Unit 1 modifications to implement GL 89-13 recommendations will'e completed by December 1991.
The NRC staff position has been that licensees must install Category 2 qualified instrumentation to monitor accumulator tank level and pressure and sump temperature.
However, the staff is currently re-evaluating this position.
No action by licensees is required unti 1 a staff decision on this issue is made.
75 Item 2.2.2 - Vendor Interface for Safety Related Components 05/91 By letter dated September 25, 1990, the licensee stated that it will fully implement programs to comply with the recommendations of GL 90-03 by May 1, 1991.
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