ML14330A311

Diablo Canyon Power Plant, Units 1 and 2, Results of NRC Assessment of New Seismic Hazards Information Developed in Response to State of California Assembly Bill 1632 (TAC Nos. MF4750 and MF4751)

ML14330A311
Person / Time
Site:	Diablo Canyon
Issue date:	12/15/2014
From:	Lingam S P Plant Licensing Branch IV
To:	Halpin E D Pacific Gas & Electric Co
Oesterle E R
References
TAC MF4750, TAC MF4751
Download: ML14330A311 (2)

Text

December 15, 2014

Mr. Edward Senior Vice President and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Power Plant P.O. Box 56, Mail Code 104/6 Avila Beach, CA 93424

SUBJECT: DIABLO CANYON POWER PLANT, UNITS 1 AND 2-NEW SEISMIC HAZARDS INFORMATION DEVELOPED IN RESPONSE TO STATE OF CALIFORNIA ASSEMBLY BILL 1632 (TAC NOS. MF4750 AND MF4751)

Dear Mr. Halpin:

The purpose of this letter is to acknowledge receipt of your letter and enclosed report, "Central California Seismic Imaging Project" (CCSIP) dated September 10, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 14260A106), which provided information related to the advanced seismic studies performed at Diablo Canyon Power Plant, Units 1 and 2. The U.S. Nuclear Regulatory Commission (NRC) understands that Pacific Gas and Electric Company (PG&E) will also use the CCSIP report for its response to the NRC's March 12, 2012 (ADAMS Accession No. ML 12056A046), request for information pursuant to Title 10 of the Code of Federal Regulations, Part 50, Section 50.54(f), regarding seismic hazard re-evaluation. PG&E's scheduled response date is March 2015. Docket Nos. 50-275 and 50-323 cc: Distribution via Listserv

Sincerely,Siva P. Lingam, Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation December 15, 2014 Mr. Edward Senior Vice President and Chief Nuclear Officer Pacific Gas and Electric Company Diablo Canyon Power Plant P.O. Box 56, Mail Code 104/6 Avila Beach, CA 93424 SUBJECT: DIABLO CANYON POWER PLANT, UNITS 1 AND 2-NEW SEISMIC HAZARDS INFORMATION DEVELOPED IN RESPONSE TO STATE OF CALIFORNIA ASSEMBLY BILL 1632 (TAC NOS. MF4750 AND MF4751)

Dear Mr. Halpin:

The purpose of this letter is to acknowledge receipt of your letter and enclosed report, "Central California Seismic Imaging Project" (CCSIP) dated September 10, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML 14260A106), which provided information related to the advanced seismic studies performed at Diablo Canyon Power Plant, Units 1 and 2. The U.S. Nuclear Regulatory Commission (NRC) understands that Pacific Gas and Electric Company (PG&E) will also use the CCSIP report for its response to the NRC's March 12, 2012 (ADAMS Accession No. ML 12056A046), request for information pursuant to Title 10 of the Code of Federal Regulations, Part 50, Section 50.54(f), regarding seismic hazard re-evaluation. PG&E's scheduled response date is March 2015. Docket Nos. 50-275 and 50-323 cc: Distribution via Listserv DISTRIBUTION: PUBLIC LPL4-1 Reading RidsAcrsAcnw _MaiiCTR Resource RidsNrrDoriLpl4-1 Resource RidsNrrDeEmcb Resource RidsNrrJLD Resource RidsNrrLAJ Burkhardt Resource RidsNrrPMDiabloCanyon Resource RidsRgn4MaiiCenter Resource ADAMS Accession No

• ML 14330A311 .. OFFICE N RR/DORL/LPL4-1 /PM NAME SLingam DATE 12/10/14 OFFICE OGC (NLO) NAME DRoth DATE 12/10/14

Sincerely,/RAJ Siva P. Lingam, Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation NRR/DORLILPL4-1 /LA NRR/DORLILPL4-1/BC (A) JBurkhardt EOesterle 12/10/14 12/10/14 NRR/DORL!DD NRR/DORL/LPL4-1/PM GWilson SLing am 12/15/14 12/15/14 OFFICIAL RECORD COPY