ML16341F779

Reviews 60-day Response to Generic Ltr 88-20 Re Individual Plant Exams for Diablo Canyon Units 1 & 2

ML16341F779
Person / Time
Site:	Diablo Canyon
Issue date:	07/30/1990
From:	Rood H Office of Nuclear Reactor Regulation
To:	Shiffer J PACIFIC GAS & ELECTRIC CO.
References
GL-88-20, TAC-74403, TAC-74404, NUDOCS 9008070011
Download: ML16341F779 (6)

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Docket Nos.

50-275 and 50-323 UNITEDSTATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 July 30, 1990 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

SUBJECT:

REVIEW OF 60-DAY RESPONSE TO GENERIC LETTER 88-20, INDIVIDUALPLANT EXAMINATIONS (IPE)

FOR DIABLO CANYON UNITS I AND 2 (TAC NOS.

74403 AND 74404)

Generic Letter 88-20 requires, in part, that each operating reactor licensee and construction permit holder (I) identify the approach and method selected for performing the IPE, (2) describe the method to be used, and (3) identify the schedule for performing the IPE and submitting the results to the NRC.

This information was to be submitted to the NRC within 60 days of issuance of Supplement I to the generic letter.

We have reviewed your letter dated October 30, 1989, submitted in response to the reporting requirements of the generic letter.

We conclude that your IPE

approach, methodology, and schedule are acceptable.

However, as we stated in Generic Letter 88-20, we expect that utilities with extensive PRA experience, such as yours, will submit their IPE results on a shorter schedule than 3 years.

We strongly encourage you to submit your IPE results on a more expeditious schedule to help avoid any possible delays between your completion of the IPE and our review process due to the expected backlog at the end of the 3-year period.

Although you plan to submit the results and conclusions of the Level I analysis early, we do not plan to review the IPE in stages.

We, therefore, request that the Level I and Level II analyses be submitted together.

We anticipate that any possible additional analysis or reporting requirements, such as those from external events or from the Containment Performance Improvement Program, will not have any adverse effect on your schedule.

However, ifyour schedule should change, please notify the NRC of the proposed change and the reason for the change.

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July 30, 1990 If you have any questions concerning the requirements of Generic Letter 88-20, please contact Mr. Michael L. Boyle, NRR, at (301) 492-1308 or Mr. John H. Flack, RES, at (301) 492-3979.

Sincerely, cc:

See next page Original signed by Harry Rood Har ry Rood, Senior Project Manager Project Directorate V

Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation DISTRIBUTION

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Mr. J.

D. Shiffer Pacific Gas and Electric Company Diablo Canyon CC Richard F. Locke, Esq.

Pacific Gas 5 Electric Company Post Office Box 7442 San Francisco, California 94120 Ms. Sandra A. Silver 660 Granite Creek Road Santa Cruz, California 95065 Mr. Peter H. Kaufman Deputy Attorney General State of California 110 West A Street, Suite 700 San Diego, California 92101 Managing Editor The Count Tele ram Tribune 1321 Johnson Avenue P. 0.

Box 112 San Luis Obispo, California 93406 Ms. Nancy Culver 192 Luneta Street San Luis Obispo, California 93401 Regional Administrator, Region V

U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 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 NRC Resident Inspector Diablo Canyon Nuclear Power Plant c/o U.S. Nuclear Regulatory Commission P. 0.

Box 369 Avila Beach, California 93424 Bruce Norton, Esq.

c/o Richard F. Locke, Esq.

Pacific Gas and Electric Company Post Office Box 7442 San Francisco, California 94120 Dr.

R. B. Ferguson Sierra Club - Santa Lucia Chapter Rocky Canyon Star Route Creston, California 93432 Chairman San Luis Obispo County Board of Supervisors Room 270 County Government Center San Luis Obispo, California 93408 Michael M. Strumwasser, Esq.

Special Assistant Attorney General State of California Department of Justice 3580 Wilshire Boulevard, Room 800 Los Angeles, California 90010

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