ML102930568

Summary of Telephone Conference Call Held on 9/30/10, Btw the USNRC and Pacific Gas and Electric Company Concerning RAIs Related to the Diablo Canyon Nuclear Power Plant, Units 1 and 2, LRA - Scoping and Screening

ML102930568
Person / Time
Site:	Diablo Canyon
Issue date:	11/05/2010
From:	Ferrer N License Renewal Projects Branch 1
To:	Pacific Gas & Electric Co
Ferrer, N B, NRR/DLR, 415-1045
References
Download: ML102930568 (5)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 November 5, 2010 LICENSEE: Pacific Gas and Electric Company FACILITY: Diablo Canyon Nuclear Power Plant, Units 1 and 2

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON SEPTEMBER 30, 2010, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND PACIFIC GAS AND ELECTRIC COMPANY CONCERNING REQUESTS FOR ADDITIONAL INFORMATION RELATED TO THE DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION - SCOPING AND SCREENING 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 September 30, 2010, to clarify the staff's requests for additional information (RAls) regarding the Diablo Canyon Nuclear Power Plant license renewal application.

By letters dated July 20 and August 9,2010, the staff issued RAls to PG&E regarding scoping and screening. By letters dated August 17 and September 7, 2010, PG&E provided responses to the RAls. The staff requested a teleconference call for clarification on the RAI response letters.

The telephone conference call was useful in clarifying the intent of the staffs RAls and PG&E's responses. Enclosure 1 provides a listing of the participants. Enclosure 2 provides details of the discussion.

The applicant had an opportunity to comment on this summary.

athaniel Ferrer, 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 w/encls: Distribution via Listserv

TELEPHONE CONFERENCE CALL DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS SEPTEMBER 30,2010 PARTICIPANTS AFFILIATIONS Nate Ferrer U.S. Nuclear Regulatory Commission (NRC)

Garry Armstrong NRC Greg Casto NRC Terry Grebel Pacific Gas & Electric (PG&E)

Philippe Soenen PG&E Dan Gibbons PG&E Brandy Sizemor PG&E David Kunsemiller Strategic Teaming And Resource Sharing (STARS)

Chalmer Myer STARS AI Saunders STARS Rye Davis STARS ENCLOSURE 1

Diablo Canyon Nuclear Power Plant, Units 1 and 2 License Renewal Application Request for Additional Information (Sets 13 and 18)

Scoping and Screening RAI 2.3.3.6-2 and 2.3.3.18-2 By letters dated August 17 and September 7, 2010, the applicant respo,nded to requests for additional information (RAls) 2.3.3.6-2 and 2.3.3.18-2, and provided a description of how seismic endpoints were established at various panels. The staff was unclear how the applicant designated the endpoints as base-mounted equipment.

Discussion:

Pacific Gas and Electric Company (PG&E) agreed to supplement its responses to RAls 2.3.3.6-2 and 2.3.3.18-2 to address how endpoints at base-mounted equipment were established.

RAI2.3.3.7-3 By letter dated September 7,2010, the applicant responded to RAI 2.3.3.7-3, and provided a description of the water traps, and indicated that there are no oil filters located in the turbine building. However, the staff was unclear about why there is a component indicated as an oil filter on license renewal boundary drawing LR-DCPP-25-106725-50. The staff was also unclear if a failure of the described water traps could affect safety-related equipment.

Discussion:

PG&E agreed to supplement its response to RAI 2.3.3.7-3 to clarify why there is an oil filter on the above license renewal boundary drawing and provide clarification on whether failure of the water traps described above could affect safety-related equipment.

ENCLOSURE 2

November 5, 2010 LICENSEE: Pacific Gas and Electric Company FACILITY: Diablo Canyon Nuclear Power Plant, Units 1 and 2

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON SEPTEMBER 30,2010, BElWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND PACIFIC GAS AND ELECTRIC COMPANY CONCERNING REQUESTS FOR ADDITIONAL INFORMATION RELATED TO THE DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION - SCOPING AND SCREENING 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 September 30, 2010, to clarify the staff's requests for additional information (RAls) regarding the Diablo Canyon Nuclear Power Plant license renewal application.

By letters dated July 20 and August 9,2010, the staff issued RAls to PG&E regarding scoping and screening. By letters dated August 17 and September 7,2010, PG&E provided responses to the RAls. The staff requested a teleconference call for clarification on the RAI response letters.

The telephone conference call was useful in clarifying the intent of the staff's RAls and PG&E's responses. Enclosure 1 provides a listing of the participants. Enclosure 2 provides details of the discussion.

The applicant had an opportunity to comment on this summary.

IRA!

Nathaniel Ferrer, 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 w/encls: Distribution via Listserv DISTRIBUTION:

See next page ADAMS Accession No ... ML102930568 *concurrence via e-mail i OFFICE PM:RPB2:DLR LA:DLR BC:RPB2:DLR PM:RPB2:DLR NAME NFerrer YEdmonds

• DWrona (LRegner for) NFerrer DATE 11/03/10 11/01/10 11/05/10 11/05/10 OFFICIAL RECORD COpy

Memo to Pacific Gas and Electric Company from N. Ferrer dated November 5, 2010 SUB~IECT:

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON SEPTEMBER 30,2010, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND PACIFIC GAS AND ELECTRIC COMPANY CONCERNING REQUESTS FOR ADDITIONAL INFORMATION RELATED TO THE DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION - SCOPING AND SCREENING DISTRIBUTION:

HARDCOPY:

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