ML080360093

Evaluation Regarding the 2006 (2R13) Steam Generator Tube Inspections

ML080360093
Person / Time
Site:	Diablo Canyon
Issue date:	02/08/2008
From:	Wang A NRC/NRR/ADRO/DORL/LPLIV
To:	Keenan J Pacific Gas & Electric Co
Wang, A B, NRR/DORL/LPLIV, 415-1445
References
TAC MD7458
Download: ML080360093 (3)

Text

February 8, 2008

Mr. John S. Keenan Senior Vice President B Generation and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Power Plant P.O. Box 770000, Mail Code B32 San Francisco, CA 94177-0001

SUBJECT:

DIABLO CANYON POWER PLANT, UNIT NO. 2 - EVALUATION REGARDING THE 2006 STEAM GENERATOR TUBE INSPECTIONS (TAC NO. MD7458)

Dear Mr. Keenan:

By letters dated May 19, 2006 (Agencywide Document Access and Management System (ADAMS) Accession No. ML061450136), August 18, 2006 (ADAMS Accession No.

ML062400518), November 17, 2006 (ADAMS Accession No. ML063320484), and July 9, 2007 (ADAMS Accession No. ML072040054), Pacific Gas and Electric Company (PG&E, the licensee), submitted information summarizing the results of the 2006 steam generator (SG) tube inspections at Diablo Canyon Power Plant (DCPP), Unit 2. These inspections were performed during the 13th refueling outage (2R13). In addition to these reports, the U.S. Nuclear Regulatory Commission (NRC) staff summarized additional information concerning the 2006 SG tube inspections at DCPP Unit 2 in a letter dated August 24, 2006 (ADAMS Accession No.

ML062370004). Based on discussions with PG&E during October 2007, the NRC staff requested additional information regarding the inspection results. By letter dated November 19, 2007 (ADAMS Accession No. ML073320311), PG&E provided the additional requested information.

The NRC staff has completed its review of the information contained in the November 19, 2007, letter and did not identify any issues that were not already addressed in our previous review provided to you on August 24, 2006. The NRC staff

=s review of the 2R13 SG tube inspection reports is complete and TAC No. MD7458 is closed.

If you have any questions regarding this matter, please contact me at (301) 415-1445.

Sincerely,

/RA/

Alan B. Wang, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Docket No. 50-323

cc: See next page

ML062400518), November 17, 2006 (ADAMS Accession No. ML063320484), and July 9, 2007 (ADAMS Accession No. ML072040054), Pacific Gas and Electric Company (PG&E, the licensee), submitted information summarizing the results of the 2006 steam generator (SG) tube inspections at Diablo Canyon Power Plant (DCPP), Unit 2. These inspections were performed during the 13th refueling outage (2R13). In addition to these reports, the U.S. Nuclear Regulatory Commission (NRC) staff summarized additional information concerning the 2006 SG tube inspections at DCPP Unit 2 in a letter dated August 24, 2006 (ADAMS Accession No.

ML062370004). Based on discussions with PG&E during October 2007, the NRC staff requested additional information regarding the inspection results. By letter dated November 19, 2007 (ADAMS Accession No. ML073320311), PG&E provided the additional requested information.

The NRC staff has completed its review of the information contained in the November 19, 2007, letter and did not identify any issues that were not already addressed in our previous review provided to you on August 24, 2006. The NRC staff

=s review of the 2R13 SG tube inspection reports is complete and TAC No. MD7458 is closed.

If you have any questions regarding this matter, please contact me at (301) 415-1445.

Sincerely,

/RA/

Alan B. Wang, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Docket No. 50-323

cc: See next page DISTRIBUTION

PUBLIC LPLIV Reading RidsNrrPMAWang RidsNrrLAJBurkhardt RidsNrrDciCsgb RidsNrrDorlLpl4 RidsAcrsAcnwMailCenter RidsRgn4MailCenter (VGaddy) RidsOgcRp KKarwoski, NRR/DCI/CSGB ADAMS Accession No.: ML080360093 *Memo input NRR-106 OFFICE LPL4/PM LPL4/LA DCI/CSGB/BC LPL4/BC NAME AWang JBurkhardt AHiser THiltz DATE 2/8/08 2/7/08 1/30/08 2/8/08 Diablo Canyon Power Plant, Units 1 and 2

cc:

NRC Resident Inspector Diablo Canyon Power Plant c/o U.S. Nuclear Regulatory Commission P.O. Box 369 Avila Beach, CA 93424

Sierra Club San Lucia Chapter ATTN: Andrew Christie P.O. Box 15755 San Luis Obispo, CA 93406

Ms. Nancy Culver San Luis Obispo Mothers for Peace P.O. Box 164 Pismo Beach, CA 93448

Chairman San Luis Obispo County Board of Supervisors 1055 Monterey Street, Suite D430 San Luis Obispo, CA 93408

Mr. Truman Burns Mr. Robert Kinosian California Public Utilities Commission 505 Van Ness, Room 4102 San Francisco, CA 94102

Diablo Canyon Independent Safety Committee Attn: Robert R. Wellington, Esq.

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

Regional Adminstrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower & Pavillion 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 Jennifer Post, Esq. Pacific Gas & Electric Company P.O. Box 7442 San Francisco, CA 94120

City Editor The Tribune 3825 South Higuera Street P.O. Box 112 San Luis, Obispo, CA 94306-0112

Director, Radiologic Health Branch State Department of Health Services P.O. Box 997414, MS 7610 Sacramento, CA 95899-7414

Mr. James Boyd, Commissioner California Energy Commission 1516 Ninth Street MS (31)

Sacramento, CA 95831

Mr. James R. Becker, Vice President Diablo Canyon Operations and Station Director Diablo Canyon Power Plant P.O. Box 56 Avila Beach, CA 93424

Jennifer Tang Field Representative United States Senator Barbara Boxer 1700 Montgomery Street, Suite 240 San Francisco, CA 94111

Mr. John T. Conway Site Vice President Diablo Canyon Power Plant P. O. Box 56 Avila Beach, California 93424