ML16341G573

Forwards Supplemental Safety Evaluation Accepting Util 920413 Response to Station Blackout Rule (10CFR50.63).All Documentation in Support of Station Blackout Rule Should Be Maintained for Future NRC Audit

ML16341G573
Person / Time
Site:	Diablo Canyon
Issue date:	05/29/1992
From:	Rood H Office of Nuclear Reactor Regulation
To:	Rueger G PACIFIC GAS & ELECTRIC CO.
Shared Package
ML16341G574	List: ML16341G573 ML16341G575
References
TAC-M68537, TAC-M68538, NUDOCS 9206030001
Download: ML16341G573 (6)

Text

May 29, 1992 Docket Nos.

50-275 and 50-323 Hr. Gregory H. Rueger Senior Vice President and General Manager Nuclear Power Generation Business Unit Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106

SUBJECT:

SUPPLEMENTAL SAFETY EVALUATION OF PGSE

RESPONSE

TO STATION BLACKOUT RULE (10 CFR 50.63)

FOR DIABLO CANYON (TAC NOS.

H68537 AND H68538)

The NRC staff's safety evaluation (SE) of your response to the station blackout (SBO) rule, 10 CFR 50.63, was transmitted to you by letter dated January 29, 1992.

The staff SE found your proposed method of coping with an SBO to be incomplete, and listed several recommendations to bring the plant into conformance with the SBO rule.

You responded to the staff SE by letter DCL-92-084, dated April 13, 1992.

The staff has reviewed your responses to the SBO SE for Diablo Canyon and finds the responses to be acceptable as discussed in the enclosed supplemental safety evaluation (Enclosure 1).

This completes our review of station blackout at Diablo Canyon and closes TAC Nos, M68537 and M68538.

You should maintain all documentation in support of your SBO submittals for possible future audit by the NRC. If you have any questions regarding this matter, please contact me

~

Sincerely, Orfginal signed by Harry Rood, Senior Project Manager Project Directorate V

Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation

Enclosure:

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555 May 29, 1992 Docket Nos.

50-275 and 50-323 Mr. Gregory M. Rueger Senior Vice President and General Manager Nuclear Power Generation Business Unit Pacific Gas and Electric Company 77 Beale Street, Room 1451 San Francisco, California 94106

SUBJECT:

SUPPLEMENTAL SAFETY EVALUATION OF PG&E

RESPONSE

TO STATION BLACKOUT RULE (10 CFR 50.63)

FOR DIABLO CANYON (TAC NOS.

H68537 AND M68538)

The NRC staff's safety evaluation (SE) of your response to the station blackout (SBO) rule, 10 CFR 50.63, was trahsmitted to you by letter dated January 29, 1992.

The staff SE found your proposed method of coping with an SBO to be incomplete, and listed several recommendations to bring the plant into conformance with the SBO rule.

You responded to the staff SE by letter DCL-92-084, dated April 13, 1992.

The staff has reviewed your responses to the SBO SE for Diablo Canyon and finds the responses to be acceptable as discussed in the enclosed supplemental safety evaluation (Enclosure 1).

This completes our review of station blackout at Diablo Canyon and closes TAC Nos.

M68537 and H68538.

You should maintain all documentation in support of your SBO submittals for possible future audit by the NRC. If you have any questions regarding this matter, please contact me.

Sincerely,

Enclosure:

As stated cc w/enclosure:

See next page Harry Rood, Senior Project Manager Project Directorate V

Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation

I

Mr. Gregory H. Rueger 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 Rocky Canyon Creston, California 93432 Ms. Sandra A. Silver Mothers for Peace 660 Granite Creek Road Santa Cruz, California 95065 Hs. Jacquelyn C. Wheeler 3303 Barranca Court San Luis Obispo, California 93401 Managing Editor The County Telegram Tribune 1321 Johnson Avenue P. 0.

Box 112 San Luis Obispo, California 93406 Chairman San Luis Obispo County Board of Supervisors Room 370 County Government Center San'uis Obispo, California 93408 Christopher J.

Warner, Esq.

Pacific Gas

& Electric Company Post Office Box 7442 San Francisco, California 94120 Hr. Hank Kocol Radiologic Health Branch State Department of Health Services Post Office Box 942732 Sacramento, California 94234 Regional Administrator, Region V

U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Hr. Peter H. Kaufman Deputy Attorney General State of California 110 West A Street, Suite 700 San Diego, California 92101 Hs.

Nancy Culver 192 Luneta Street San Luis Obispo, California 93401 Michael H. Strumwasser, Esq.

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