ML022880196

Day Response for Bulletin 2002-01, Reactor Pressure Vessel Head Degradation & Reactor Coolant Pressure Boundary Integrity.

ML022880196
Person / Time
Site:	Diablo Canyon
Issue date:	10/25/2002
From:	Shukla G NRC/NRR/DLPM/LPD4
To:	Rueger G Pacific Gas & Electric Co
Shukla G, NRR/DLPM,415-8439
References
TAC MB4543, TAC MB4544
Download: ML022880196 (3)

Text

October 25, 2002 Mr. Gregory M. Rueger Senior Vice President, Generation and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Nuclear Power Plant P.O. Box 3 Avila Beach, CA 93424

SUBJECT:

DIABLO CANYON NUCLEAR POWER PLANT, UNIT NOS. 1 AND 2 -

15-DAY RESPONSE FOR BULLETIN 2002-01, "REACTOR PRESSURE VESSEL HEAD DEGRADATION AND REACTOR COOLANT PRESSURE BOUNDARY INTEGRITY" (TAC NOS. MB4543 AND MB4544)

Dear Mr. Rueger:

On March 18, 2002, the staff issued Bulletin 2002-01, "Reactor Pressure Vessel Head Degradation and Reactor Coolant Pressure Boundary Integrity," to the industry requesting that addressees provide information related to the structural integrity of the reactor coolant pressure boundary, including the reactor pressure vessel head, and the extent to which inspections have been undertaken to satisfy applicable regulatory requirements. Bulletin 2002-01 also required licensees to provide the basis for concluding that plans for future inspections of the reactor coolant pressure boundary will satisfy applicable regulatory requirements at their respective pressurized water reactor (PWR) plants. All addressees were requested to respond to Items 1.A. through E. within 15 days of the Bulletins issuance, or to provide a written response to the NRC in accordance with the provisions of Title 10, Section 50.54(f), of the Code of Federal Regulations (10 CFR 50.54(f)) if they are unable to provide the information or they can not meet the requested completion dates.

You provided your 15-day Bulletin response by letter dated April 1, 2002. The staff finds that you have provided the requested information, and has concluded that your plant does not appear to have conditions similar to those which lead to the degradation at Davis-Besse.

We will complete a full review of your response to Bulletin 2002-01 after we review your response to Items 2 and 3 of the Bulletin.

Sincerely,

/RA/

Girija S. Shukla, Project Manager, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323 cc: See next page

October 25, 2002 Mr. Gregory M. Rueger Senior Vice President, Generation and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Nuclear Power Plant P. O. Box 3 Avila Beach, CA 93424

SUBJECT:

DIABLO CANYON NUCLEAR POWER PLANT, UNIT NOS. 1 AND 2 -

15-DAY RESPONSE FOR BULLETIN 2002-01, "REACTOR PRESSURE VESSEL HEAD DEGRADATION AND REACTOR COOLANT PRESSURE BOUNDARY INTEGRITY" (TAC NOS. MB4543 AND MB4544)

Dear Mr. Rueger:

On March 18, 2002, the staff issued Bulletin 2002-01, "Reactor Pressure Vessel Head Degradation and Reactor Coolant Pressure Boundary Integrity," to the industry requesting that addressees provide information related to the structural integrity of the reactor coolant pressure boundary, including the reactor pressure vessel head, and the extent to which inspections have been undertaken to satisfy applicable regulatory requirements. Bulletin 2002-01 also required licensees to provide the basis for concluding that plans for future inspections of the reactor coolant pressure boundary will satisfy applicable regulatory requirements at their respective pressurized water reactor (PWR) plants. All addressees were requested to respond to Items 1.A. through E. within 15 days of the Bulletins issuance, or to provide a written response to the NRC in accordance with the provisions of Title 10, Section 50.54(f), of the Code of Federal Regulations (10 CFR 50.54(f)) if they are unable to provide the information or they can not meet the requested completion dates.

You provided your 15-day Bulletin response by letter dated April 1, 2002. The staff finds that you have provided the requested information, and has concluded that your plant does not appear to have conditions similar to those which lead to the degradation at Davis-Besse.

We will complete a full review of your response to Bulletin 2002-01 after we review your response to Items 2 and 3 of the Bulletin.

Sincerely,

/RA/

Girija S. Shukla, Project Manager, Section 2 Project Directorate IV Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323 cc: See next page DISTRIBUTION:

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FAkstulewicz SCoffin WBateman SBloom ALee Adams Accession No.: ML022880196 OFFICE RECORD COPY OFFICE PDIV-2/PM PDIV-2/LA EMCB/SC PDIV-2/SC NAME GShukla EPeyton SDembek DATE 10/22/02 10/18/02 10/25/2002 10/18/02

Diablo Canyon Power Plant, Units 1 and 2 cc:

NRC Resident Inspector Regional Administrator, Region IV Diablo Canyon Nuclear Power Plant U.S. Nuclear Regulatory Commission c/o U.S. Nuclear Regulatory Commission Harris Tower & Pavilion P.O. Box 369 611 Ryan Plaza Drive, Suite 400 Avila Beach, CA 93424 Arlington, TX 76011-8064 Dr. Richard Ferguson, Energy Chair Christopher J. Warner, Esq.

Sierra Club California Pacific Gas & Electric Company 1100 11th Street, Suite 311 Post Office Box 7442 Sacramento, CA 95814 San Francisco, CA 94120 Ms. Nancy Culver Mr. David H. Oatley, Vice President, San Luis Obispo Diablo Canyon Operations Mothers for Peace Diablo Canyon Nuclear Power Plant P.O. Box 164 P.O. Box 3 Pismo Beach, CA 93448 Avila Beach, CA 93424 Chairman Telegram-Tribune San Luis Obispo County Board of ATTN: Managing Editor Supervisors 1321 Johnson Avenue Room 370 P.O. Box 112 County Government Center San Luis Obispo, CA 93406 San Luis Obispo, CA 93408 Mr. Ed Bailey, Radiation Program Director Mr. Truman Burns Radiologic Health Branch Mr. Robert Kinosian State Department of Health Services California Public Utilities Commission P.O. Box 942732 (MS 178) 505 Van Ness, Room 4102 Sacramento, CA 94327-7320 San Francisco, CA 94102 Mr. Robert A. Laurie, Commissioner Mr. Steve Hsu California Energy Commission Radiologic Health Branch 1516 Ninth Street (MS 31)

State Department of Health Services Sacramento, CA 95814 P.O. Box 942732 Sacramento, CA 94327-7320 Diablo Canyon Independent Safety Committee ATTN: Robert R. Wellington, Esq.

Legal Counsel 857 Cass Street, Suite D Monterey, CA 93940