ML070930584

Summary of Telephone Conference Call Held on Between the NRC and Wolf Creek Nuclear Operating Corporation, Concerning the Analysis of Severe Accident Mitigation Alternatives Pertaining to Wolf Creek, Unit 1, Renewal Application

ML070930584
Person / Time
Site:	Wolf Creek
Issue date:	04/08/2007
From:	Christian Jacobs NRC/NRR/ADRO/DLR/REBB
To:	Wolf Creek
Jacobs C, PM, REBB, DLR, 415-3874
References
Download: ML070930584 (6)

Text

April 8, 2007 LICENSEE: Wolf Creek Nuclear Operating Corporation FACILITY: Wolf Creek Generating Station

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON MARCH 20, 2007, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND WOLF CREEK NUCLEAR OPERATING CORPORATION, CONCERNING THE ANALYSIS OF SEVERE ACCIDENT MITIGATION ALTERNATIVES PERTAINING TO THE WOLF CREEK GENERATING STATION, UNIT 1, LICENSE RENEWAL APPLICATION The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Wolf Creek Nuclear Operating Corporation held a telephone conference call on March 20, 2007, to discuss and clarify the staffs requests for additional information (RAIs) concerning the analysis of Severe Accident Mitigation Alternatives (SAMAs) for Wolf Creek Generating Station, Unit 1, license renewal application. The telephone conference call was useful in clarifying the intent of the staffs SAMA RAIs. provides a listing of the participants and Enclosure 2 contains a listing of the SAMA RAIs discussed with the applicant, including a brief description on the status of the items.

The applicant had an opportunity to comment on this summary.

/RA/

Christian Jacobs, Project Manager Environmental Branch B Division of License Renewal Office of Nuclear Reactor Regulation Docket No. 50-482

Enclosures:

1. List of Participants

2. List of SAMA RAIs cc w/encls: See next page

ML070930584 OFFICE PM:REBB:DLR LA:DLR BC:REBB:DLR NAME C. Jacobs I. King R. Franovich DATE 04/ 6 /07 04/ 6 /07 04/ 8 /07 TELEPHONE CONFERENCE CALL WOLF CREEK GENERATING STATION, UNIT 1 LICENSE RENEWAL APPLICATION LIST OF PARTICIPANTS March 20, 2007 PARTICIPANTS AFFILIATIONS Christian Jacobs U.S. Nuclear Regulatory Commission (NRC)

Robert Palla NRC Lauren Fleishman Information Systems Laboratories Bruce Mrowca Information Systems Laboratories Lorrie Bell Wolf Creek Nuclear Operating Corporation (WCNOC)

Charlie Medenciy WCNOC Bill Ketchum WCNOC Jeff Gabor ERIN Engineering Don MacLeod ERIN Engineering Eric Blocher STARS Rigel Davis STARS Enclosure 1

SEVERE ACCIDENT MITIGATION ALTERNATIVE REQUESTS FOR ADDITIONAL INFORMATION WOLF CREEK GENERATING STATION, UNIT 1 LICENSE RENEWAL APPLICATION March 20, 2007 The U.S. Nuclear Regulatory Commission (NRC or the staff) and representatives of Wolf Creek Nuclear Operating Corporation held a telephone conference call on March 20, 2007, to discuss and clarify the following requests for additional information (RAIs) concerning the analysis for Severe Accident Mitigation Alternatives (SAMAs) for Wolf Creek Generating Station, Unit 1, license renewal application.

SAMA-RAI 2-d Justify the assumption in Section F.2.8 of the Environmental Report that the conditional probabilities from the original individual plant examination (IPE) can be used to obtain the non-large energy release frequency (LERF) release categories, and why this approach was used in lieu of rebinning non-LERF sequences using the IPE modular accident analysis program runs.

Discussion: Based on the discussion with the applicant, the applicant understands the request and will provide an RAI response that includes justification to the assumptions made.

SAMA-RAI 7-b Provide alternate direct current (DC) feeds (using a portable generator) to panels supplied only by DC bus.

Discussion: The staff provided clarification to the intent of the request. The applicant indicated they were clear regarding their understanding of this RAI.

Following the discussion of these 2 SAMA RAIs, the staff discussed several questions that had arisen while conducting the staffs review. However, these questions did not meet the threshold of an RAI, and therefore had not been previously provided via RAI letter to the applicant. It was agreed by both the staff and the applicant that a follow-up telecon to discuss these questions would be scheduled tentatively in early April 2007.

Enclosure 2

Letter to Wolf Creek Nuclear Operation Corporation from C. Jacobs, dated April 8, 2007 DISTRIBUTION:

SUMMARY

OF TELEPHONE CONFERENCE CALL HELD ON MARCH 20, 2007, BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION AND WOLF CREEK NUCLEAR OPERATING CORPORATION, CONCERNING THE ANALYSIS OF SEVERE ACCIDENT MITIGATION ALTERNATIVES PERTAINING TO THE WOLF CREEK GENERATING STATION, UNIT 1, LICENSE RENEWAL APPLICATION HARD COPY DLR RF E-MAIL:

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Wolf Creek Generating Station cc:

Jay Silberg, Esq. Supervisor Licensing Pillsbury Winthrop Shaw Pittman, LLP Wolf Creek Nuclear Operating Corporation 2300 N Street, NW P.O. Box 411 Washington, DC 20037 Burlington, KS 66839 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission Resident Inspectors Office/Callaway Plant 611 Ryan Plaza Drive, Suite 400 8201 NRC Road Arlington, TX 76011-7005 Steedman, MO 65077-1032 Senior Resident Inspector Kevin J. Moles, Manager U.S. Nuclear Regulatory Commission Regulatory Affairs P.O. Box 311 Wolf Creek Nuclear Operating Corporation Burlington, KS 66839 P.O. Box 411 Burlington, KS 66839 Chief Engineer, Utilities Division Kansas Corporation Commission Lorrie I. Bell, Project Manager 1500 SW Arrowhead Road Wolf Creek Nuclear Operating Corporation Topeka, KS 66604-4027 P.O. Box 411 Burlington, KS 66839 Office of the Governor State of Kansas Mr. James Ross Topeka, KS 66612 Nuclear Energy Institute 1776 I Street, NW, Suite 400 Attorney General Washington, DC 20006-3708 120 S.W. 10th Avenue, 2nd Floor Topeka, KS 66612-1597 County Clerk Coffey County Courthouse 110 South 6th Street Burlington, KS 66839 Thomas A. Conley, Section Chief Radiation and Asbestos Control Kansas Department of Health and Environment Bureau of Air and Radiation 1000 SW Jackson, Suite 310 Topeka, KS 66612-1366 Vice President Operations/Plant Manager Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839