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 RidsNrrDciCsgb RidsOgcRp LPLIV Reading RidsNrrDorlLpl4 KKarwoski, NRR/DCI/CSGB RidsNrrPMAWang RidsAcrsAcnwMailCenter RidsNrrLAJBurkhardt RidsRgn4MailCenter (VGaddy)

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 Jennifer Post, Esq.

Diablo Canyon Power Plant Pacific Gas & Electric Company c/o U.S. Nuclear Regulatory Commission P.O. Box 7442 P.O. Box 369 San Francisco, CA 94120 Avila Beach, CA 93424 City Editor Sierra Club San Lucia Chapter The Tribune ATTN: Andrew Christie 3825 South Higuera Street P.O. Box 15755 P.O. Box 112 San Luis Obispo, CA 93406 San Luis, Obispo, CA 94306-0112 Ms. Nancy Culver Director, Radiologic Health Branch San Luis Obispo State Department of Health Services Mothers for Peace P.O. Box 997414, MS 7610 P.O. Box 164 Sacramento, CA 95899-7414 Pismo Beach, CA 93448 Mr. James Boyd, Commissioner Chairman California Energy Commission San Luis Obispo County 1516 Ninth Street MS (31)

Board of Supervisors Sacramento, CA 95831 1055 Monterey Street, Suite D430 San Luis Obispo, CA 93408 Mr. James R. Becker, Vice President Diablo Canyon Operations and Mr. Truman Burns Station Director Mr. Robert Kinosian Diablo Canyon Power Plant California Public Utilities Commission P.O. Box 56 505 Van Ness, Room 4102 Avila Beach, CA 93424 San Francisco, CA 94102 Jennifer Tang Diablo Canyon Independent Safety Field Representative Committee United States Senator Barbara Boxer Attn: Robert R. Wellington, Esq. 1700 Montgomery Street, Suite 240 Legal Counsel San Francisco, CA 94111 857 Cass Street, Suite D Monterey, CA 93940 Mr. John T. Conway Site Vice President Regional Adminstrator, Region IV Diablo Canyon Power Plant U.S. Nuclear Regulatory Commission P. O. Box 56 Harris Tower & Pavillion Avila Beach, California 93424 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064