ML101760115

Summary of Telecon Between NRC and PG&E Related to the Review of the DCPP LRA

ML101760115
Person / Time
Site:	Diablo Canyon
Issue date:	07/08/2010
From:	Ferrer N License Renewal Projects Branch 2
To:	Pacific Gas & Electric Co
Nate Ferrer, DLR/RPB2 415-1045
References
Download: ML101760115 (6)

Text

July 8, 2010 LICENSEE: Pacific Gas and Electric Company FACILITY: Diablo Canyon Nuclear Power Plant, Units 1 and 2

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON JUNE 24, 2010, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND PACIFIC GAS AND ELECTRIC COMPANY CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATIONAGING MANAGEMENT PROGRAMS The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Pacific Gas and Electric Company (PG&E) held a telephone conference call on June 24, 2010, to obtain clarification on the staffs draft request for additional information (D-RAI) regarding the Diablo Canyon Nuclear Power Plant license renewal application (LRA).

By emails dated June 8, 2010, the staff sent D-RAIs to PG&E regarding aging management programs. PG&E reviewed the information contained therein, and requested a telephone conference call. The telephone conference call was useful in clarifying the intent of the staffs D-RAIs. Enclosure 2 provides discussions on D-RAI for which the applicant requested clarification. No changes to other D-RAIs were necessary as a result of this telephone conference call. Formal RAIs will be issued by a separate letter. provides a listing of the participants.

The applicant had an opportunity to comment on this summary.

/RA/

Nathaniel Ferrer, Safety Project Manager Projects Branch 2 Division of License Renewal Office of Nuclear Reactor Regulation Docket Nos. 50-275 and 50-323

Enclosures:

As stated cc: Distribution via Listserv

ML101760115 OFFICE LA:DLR PM:RPB2:DLR BC:RPB2:DLR PM:RPB2:DLR NAME SFigueroa NFerrer DWrona NFerrer DATE 06/29/10 07/02/10 07/07/10 07/08/10 TELEPHONE CONFERENCE CALL DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS JUNE 24, 2010 PARTICIPANTS AFFILIATIONS Nate Ferrer U.S. Nuclear Regulatory Commission (NRC)

James Medoff NRC Naeem Iqbal NRC Yogen Garud Argonne National Laboratory (ANL)

Terry Grebel Pacific Gas and Electric Company (PG&E)

Philippe Soenen PG&E Michael Wright PG&E Kyle Duke PG&E Daniel Hardesty PG&E Chalmer Myer Strategic Teaming And Resource Sharing (STARS)

Dave Kunsemiller STARS Enclosure 1

Diablo Canyon Nuclear Power Plant, Units 1 and 2 License Renewal Application Draft Request for Additional Information Fire Protection D-RAI 2.4-1 Section 2.4 of the LRA does not include the following fire barrier and other fire protection components:

• Table 2.4-1, fire barrier seals

• Table 2.4-3, fire barrier coatings and wraps

• Table 2.4-7, fire barrier coatings

• Table 2.4-8, fire barrier coatings

• Table 2.4-9, fire barrier coatings

• Table 2.4-10, fire barrier seals and fire barrier coatings

• Table 2.4-11, trash racks and traveling screens The staff requests that the applicant verify whether the above fire barrier assemblies and fire protection components are within the scope of license renewal within the identified structure accordance with 10 CFR 54.4(a) and subject to an AMR in accordance with 10 CFR 54.21(a)(1). If they are excluded from the scope of license renewal and not subject to an AMR, the staff requests that the applicant provide justification for the exclusion.

Discussion: For the components of concern for Table 2.4-11, the applicant referred to the staff to LRA Table 2.4-10. The staff agreed that the components are listed as within the scope of license renewal within LRA Table 2.4-10. The staff will revise this question as follows. The revised question will be sent as a formal RAI.

RAI 2.4-1 Section 2.4 of the LRA does not include the following fire barrier and other fire protection components:

• Table 2.4-1, fire barrier seals

• Table 2.4-3, fire barrier coatings and wraps

• Table 2.4-7, fire barrier coatings

• Table 2.4-8, fire barrier coatings

• Table 2.4-9, fire barrier coatings

• Table 2.4-10, fire barrier seals and fire barrier coatings The fire barrier components listed above appear to have fire protection intended functions required for compliance with 10 CFR 50.48 as stated in 10 CFR 54.4. The staff requests that the applicant verify whether the above fire barrier assemblies and fire protection components are within the scope of license renewal within the identified structure accordance with 10 CFR 54.4(a) and subject to an AMR in accordance with Enclosure 2

10 CFR 54.21(a)(1). If they are excluded from the scope of license renewal and not subject to an AMR, the staff requests that the applicant provide justification for the exclusion.

Letter to Pacific Gas and Electric Company from N. Ferrer dated July ,2010

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON JUNE 24, 2010, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND PACIFIC GAS AND ELECTRIC COMPANY CONCERNING DRAFT REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION AGING MANAGEMENT PROGRAMS DISTRIBUTION:

HARD COPY:

DLR RF E-MAIL:

PUBLIC RidsNrrDlr Resource RidsNrrDlrRpb1 Resource RidsNrrDlrRpb2 Resource RidsNrrDlrRarb Resource RidsNrrDlrRapb Resource RidsNrrDlrRasb Resource RidsNrrDlrRerb Resource RidsNrrDlrRpob Resource RidsOgcMailRoom Resource N. Ferrer K. Green A. Stuyvenberg D. Wrona A. Wang M. Peck, RIV T. Brown, RI G. Miller, RIV N. OKeefe, RIV I. Couret, OPA V. Dricks, OPA W. Maier, RIV J. Weil, OCA E. Williamson, OGC S. Uttal, GOC R. Rihm, EDO