ML15021A529

Correspondence to Parties Concerning USGS Circular 672

ML15021A529
Person / Time
Site:	Diablo Canyon
Issue date:	01/21/2015
From:	Paul Ryerson Atomic Safety and Licensing Board Panel
To:	Rebecca Giitter NRC/SECY
SECY RAS
References
50-275-LR, 50-323-LR, ASLBP 10-900-01-LR-BD01, RAS 27099
Download: ML15021A529 (3)

Text

Giitter, Rebecca From: Ryerson, Paul Sent: Wednesday, January 21, 2015 3:39 PM To: Giitter, Rebecca Cc: Trikouros, Nicholas; Arnold, Gary

Subject:

Diablo Canyon License Renewal I request that the Office of the Secretary promptly serve on the parties and place in the public record the attached communication concerning the Pacific Gas & Electric Company (Diablo Canyon Nuclear Power Plant, Units 1 and 2) license renewal proceeding.

Thank you for your assistance.

PAUL S. RYERSON Associate Chief Administrative Judge (Legal)

Atomic Safety and Licensing Board Panel United States Nuclear Regulatory Commission Washington, DC 205550001 Direct Dial: 3014156037 From: Peck, Michael Sent: Wednesday, January 21, 2015 1:35 PM To: Ryerson, Paul

Subject:

USGS Circular 672, "Near-fault horizontal ground motion."

Chairman Ryerson, PG&E and the NRC agreed to use USGS Circular 672, "Near-fault horizontal ground motion." to develop the 1977 Hosgri Spectrum, and specific ground attenuation equations (Diablo Canyon License Application, Amendment 50, D-LL42, Hosgri Report D43.1, Discussion of Attenuation Equations, October 1977). Both were incorporated into the Hosgri Report. The Hosgri Report was later incorporated in to the FSAR by reference (Section 3.7, Reference 15, Seismic Evaluation for Postulated 7.5M Hosgri Earthquake, DCPP Units 1&2).

The DPO fully considered the Hosgri part of the CLB. The point of the DPO was to ensure that the CLB context for the DD, DDE, and HE was applied to operability. Satisfying the HE doesnt automatically satisfy the seismic design basis. There are many examples were component qualification was more limited by the DDE. Also, CLB explicated stated that the DDE corresponds to the safe shutdown earthquake as described in App B to 10 CFR 100 and includes all earthquake faults within 75 miles of the site (except the Hosgri). Nowhere does the CLB state that ground motion alone establishes the license limit.

10 CFR 50.71(e) does not include an exception for new seismic information. The test for inclusion with the next FSAR updated is based on who developed the new information, not where the new information deals with natural phenomena.

Michael Peck, Ph.D.

Senior Reactor Technology Instructor TTC, 423-855-6515 1

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter of )

)

PACIFIC GAS & ELECTRIC COMPANY ) Docket Nos. 50-275-LR and 50-323-LR

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(Diablo Canyon Nuclear Power Plant, )

Units 1 and 2) )

CERTIFICATE OF SERVICE I hereby certify that copies of the foregoing CORRESPONDENCE TO PARTIES (Concerning USGS Circular 672) have been served upon the following persons by the Electronic Information Exchange.

U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission Atomic Safety and Licensing Board Panel Office of the General Counsel Mail Stop: T-3F23 Mail Stop: O-15D21 Washington, DC 20555-0001 Washington, DC 20555-0001 Paul S. Ryerson, Chair Edward L. Williamson, Esq.

Administrative Judge E-mail: edward.williamson@nrc.gov E-mail: paul.ryerson@nrc.gov Beth Mizuno, Esq.

E-mail: beth.mizuno@nrc.gov Nicholas G. Trikouros Susan Uttal, Esq.

Administrative Judge E-mail: susan.uttal@nrc.gov E-mail: nicholas.trikouros@nrc.gov Catherine Kanatas, Esq.

E-mail: catherine.kanatas@nrc.gov Gary S. Arnold Joseph Lindell, Esq.

Administrative Judge E-mail: joseph.lindell@nrc.gov E-mail: gary.arnold@nrc.gov John Tibbetts, Paralegal E-mail: john.tibbetts@nrc.gov Alana Wase, Law Clerk E-mail: alana.wase@nrc.gov OGC Mail Center E-mail: OGCMailCenter@nrc.gov U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission Office of Commission Appellate Adjudication Office of the Secretary of the Commission Mail Stop: O-16C1 Mail Stop: O-16C1 Washington, DC 20555-0001 Washington, DC 20555-0001 OCAA Mail Center Hearing Docket E-mail: ocaamail@nrc.gov E-mail: hearingdocket@nrc.gov

2 Diablo Canyon Nuclear Power Plant - Docket Nos. 50-275-LR and 50-323-LR CORRESPONDENCE TO PARTIES (Concerning USGS Circular 672)

Counsel for Pacific Gas and San Luis Obispo Mothers for Peace Electric Company 1123 Flora Road Winston & Strawn, LLP Arroyo Grande, CA 93420 101 California Street Jill ZamEk, Esq.

San Francisco, CA 94111-5802 jzk@charter.net David A. Repka, Esq.

E-mail: drepka@winston.com Tyson Smith, Esq. Counsel for San Luis Obispo Mothers E-mail: trsmith@winston.com For Peace Carlos Sisco, Senior Paralegal Harmon, Curran, Spielberg, and Eisenberg E-mail: csisco@winston.com 1726 M Street, N.W., Suite 600 Washington, DC 20036 Diane Curran, Esq.

dcurran@harmoncurran.com Ayres Law Group, LLP 1707 L Street NW, Suite 850 Washington, DC 20036 Richard E. Ayres, Esq.

E-mail: ayresr@ayreslawgroup.com John Bernetich, Esq.

E-mail: bernetichj@ayreslawgroup.com Jessica L. Olson, Esq.

E-mail: olsonj@ayreslawgroup.com

[Original signed by Brian Newell]

Office of the Secretary of the Commission Dated at Rockville, Maryland this 21st day of January 2015