ML102650234

Lr - Draft Telecon Summary for September 2, 2010

ML102650234
Person / Time
Site:	Diablo Canyon
Issue date:	09/22/2010
From:	Office of Nuclear Reactor Regulation
To:	Division of License Renewal
References
Download: ML102650234 (7)

Text

DiabloCanyonNPEm Resource From: Ferrer, Nathaniel Sent: Wednesday, September 22, 2010 10:48 AM To: Grebel, Terence; Soenen, Philippe R Cc: DiabloCanyonNPEm Resource

Subject:

Draft Telecon Summary for September 2, 2010 Attachments: Telecon Summary 09-02-10 RAI Response (sets 1, 4, and 12).doc Terry & Philippe, Attached is a draft of the Teleconference Call Summary for the September 2, 2010, conference call. Please review and let me know if there are any corrections/changes needed.

Please let me know if you have any questions.

Nathaniel Ferrer Project Manager Division of License Renewal Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission (301)4151045 1

Hearing Identifier: DiabloCanyon_LicenseRenewal_NonPublic Email Number: 1244 Mail Envelope Properties (26E42474DB238C408C94990815A02F09115A4A86FC)

Subject:

Draft Telecon Summary for September 2, 2010 Sent Date: 9/22/2010 10:48:26 AM Received Date: 9/22/2010 10:48:29 AM From: Ferrer, Nathaniel Created By: Nathaniel.Ferrer@nrc.gov Recipients:

"DiabloCanyonNPEm Resource" <DiabloCanyonNPEm.Resource@nrc.gov>

Tracking Status: None "Grebel, Terence" <TLG1@PGE.COM>

Tracking Status: None "Soenen, Philippe R" <PNS3@PGE.COM>

Tracking Status: None Post Office: HQCLSTR01.nrc.gov Files Size Date & Time MESSAGE 436 9/22/2010 10:48:29 AM Telecon Summary 09-02-10 RAI Response (sets 1, 4, and 12).doc 91642 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

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

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON SEPTEMBER 2, 2010, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND PACIFIC GAS AND ELECTRIC COMPANY CONCERNING RESPONSES TO REQUESTS FOR ADDITIONAL INFORMATION RELATED TO THE DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2, LICENSE RENEWAL APPLICATION (TAC NOS. ME2896 AND ME2897)

The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Pacific Gas and Electric Company (PG&E or the applicant) held a telephone conference call on September 2, 2010, to obtain clarification on the applicants response to request for additional information (RAI) regarding the Diablo Canyon Nuclear Power Plant license renewal application.

By letters dated June 3, 2010, July 7, 2010, and August 17, 2010, PG&E sent the staff a response to RAI letters dated May 18, 2010, June 14, 2010, and July 20, 2010, respectively.

The staff reviewed the information contained therein, and requested a telephone conference call. The telephone conference call was useful in clarifying the intent of the PG&Es response. provides a listing of the participants. Enclosure 2 provides discussions on RAI responses for which the staff requested clarification. PG&E will submit supplemental responses, as necessary, within 30 days of the issuance of this summary.

The applicant had an opportunity to comment on this summary.

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

ML102460151 OFFICE LA:DLR PM:RPB2:DLR BC:RPB2:DLR PM:RPB2:DLR NAME YEdmonds NFerrer DWrona NFerrer DATE 9/ /10 9/ /10 9/ /10 9/ /10 TELEPHONE CONFERENCE CALL DIABLO CANYON NUCLEAR POWER PLANT, UNITS 1 AND 2 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS SEPTEMBER 2, 2010 PARTICIPANTS AFFILIATIONS Nate Ferrer U.S. Nuclear Regulatory Commission (NRC)

Bill Holston NRC Michelle Kichline NRC Jim Gavula NRC Andrew Prinaris NRC Omesh Chopra Argonne National Laboratory (ANL)

Dwight Diercks ANL Philippe Soenen Pacific Gas and Electric Company (PG&E)

Miranda Tan PG&E Dan Hromyak PG&E Kevin Braico PG&E Chris Beard PG&E David Kunsemiller Strategic Teaming And Resource Sharing (STARS)

Bill Boydo STARS Mo Palmowski STARS Rye Davis STARS ENCLOSURE 1

Diablo Canyon Nuclear Power Plant, Units 1 and 2 License Renewal Application Request for Additional Information (Sets 1, 4, and 12)

Aging Management Programs RAI B2.1.13-2 In its June 3, 2010, response to RAI B2.1.13-2, the applicant provided details of the basis for maintaining the 18-month inspection frequency for Fire Water System Program. However, the staff was unclear how the operating experience was applied as part of the basis for the inspection frequency.

Discussion:

PG&E agreed to supplement its response to RAI B2.1.13-2 to clarify how operating experience was considered as part of the basis for the 18-month inspection frequency.

RAI B2.1.13-4 In its August 17, 2010, response to RAI B2.1.13-4, the applicant provided details of the methodology and inspection techniques used for the firewater tank. However, the staff was unclear if the underside of the tank was accessible for the inspections described.

Discussion:

PG&E agreed to supplement its response to RAI B2.1.13-4 to clarify how the underside of firewater tank will be inspected.

RAI B2.1.16-1 In its July 7, 2010, response to RAI B2.1.16-1, the applicant provided details of the sampling procedure that will be used for the One-Time Inspection Program. However, the staff was unclear on the basis for the sampling sizes selected for the various aging effects.

Discussion:

PG&E agreed to supplement its response to RAI B2.1.16-1 to provide additional information on the basis for the sampling size and criteria for the program.

ENCLOSURE 2

Letter to Pacific Gas and Electric Company from Nathaniel Ferrer dated September XX, 2010.

SUMMARY

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

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