ML15274A243

Nuclear Regulatory Commission Plan for the Audit of Wolf Creek Nuclear Operating Company'S Flood Hazard Reevaluation Report Submittal Relating to the Near-Term Task Force Recommendation 2.1 Flooding for Wolf Creek Generating Station

ML15274A243
Person / Time
Site:	Wolf Creek
Issue date:	10/05/2015
From:	Minarik A J Japan Lessons-Learned Division
To:	Heflin A C Wolf Creek
Minarik, Anthony, NRR/JLD 415-6185
References
TAC MF3648
Download: ML15274A243 (5)

Text

Mr. Adam C. Heflin UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 5, 2015 President, Chief Executive Officer, and Chief Nuclear Officer Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 SUBJECT: NUCLEAR REGULATORY COMMISSION PLAN FOR THE AUDIT OF WOLF CREEK NUCLEAR OPERATING CORPORATION'S FLOOD HAZARD REEVALUATION REPORT SUBMITTAL RELATING TO THE NEAR-TERM TASK FORCE RECOMMENDATION 2.1-FLOODING FOR WOLF CREEK GENERATING STATION (TAC NO. MF3648) Dear Mr. Heflin: This letter documents the U. S Nuclear Regulatory Commission (NRC) staff's plan to perform a regulatory audit of Wolf Creek Nuclear Operating Corporation's (the licensee) supporting calculations of the Flood Hazard Reevaluation Report (FHRR) submittal related to the Near-Term Task Force Recommendation 2.1, Flooding for Wolf Creek Generating Station (Wolf Creek). This technical audit will be performed consistent with NRC Office of Nuclear Reactor Regulation, Office Instruction LIC-111, "Regulatory Audits," dated December 29, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML082900195). The audit will be conducted over multiple sessions, as needed, and the NRC staff will develop an audit summary report to document its observations and conclusions within 90 days of the final audit session. The audit will provide the NRC staff with a better understanding of the Wolf Creek FHRR, which was submitted on March 10, 2014 (ADAMS Accession No. ML 14077A278). Specifically, the audit will provide the NRC with a better understanding of the anaiyses of the flooding hazards presented in the Wolf Creek FHRR. The audit is intended to support completion of the staff's review of the FHRR and the subsequent issuance of a staff assessment. The enclosed audit plan outlines the process that will allow the NRC staff to identify additional information potentially necessary for licensees to supplement their FHRRs, and resolve potential technical concerns. The details of this audit have been discussed with Ms. Nicole Good of your staff.

A. Heflin -2 -If you have any questions, please contact me at (301) 415-6185 or by e-mail at Anthony.Minarik@nrc.gov. Docket No. 50-482 Enclosure: Audit Plan cc w/encl: Distribution via Listserv Sincerely, Anth y J. inarik, ct Manager Hazards Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation NRC PLAN FOR THE AUDIT OF WOLF CREEK NUCLEAR OPERATING CORPORATION'S FLOOD HAZARD REEVALUATION REPORT SUBMITTAL RELATING TO THE NEAR-TERM TASK FORCE RECOMMENDATION 2.1-FLOODING FOR WOLF CREEK GENERATING STATION BACKGROUND AND AUDIT BASIS By letter dated March 12, 2012, the U.S. Nuclear Regulatory Commission (NRC) issued a request for information to all power reactor licensees and holders of construction permits in active or deferred status, pursuant to Title 10 of the Code of Federal Regulations (10 CFR), Section 50.54(f) "Conditions of license" (hereafter referred to as the "50.54(f) letter). The request was issued in connection with implementing lessons-learned from the 2011 accident at the Fukushima Dai-ichi nuclear power plant, as documented in The Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident. Recommendation 2.1 of that document recommended that the staff issue orders to all licensees to reevaluate seismic and flooding for their sites against current NRC requirements and guidance. Subsequent Staff Requirements Memoranda associated with Commission Papers SECY 11-0124 and SECY-11-0137, instructed the NRC staff to issue requests for information to licensees pursuant to 10 CFR 50.54(f). By letter dated March 10, 2014, Wolf Creek Nuclear Operating Corporation (WCNOC, the licensee) submitted its Flood Hazard Reevaluation Report (FHRR) for Wolf Creek Generating Station (Wolf Creek) (Agencywide Documents Access and Management System Accession No. ML 14077 A278). The NRC staff has begun its review of the aforementioned submittals and plans to conduct a regulatory audit of WCNOC to aid in its review of the licensee's FHRR. REGULATORY AUDIT SCOPE AND METHODOLOGY The areas of focus for the regulatory audit is the information contained in the Wolf Creek FHRR submittal, and all associated and relevant supporting documentation used in the development of the aforementioned document including, but not limited to, methodology, process information, calculations, computer models, etc. The audit will be conducted and completed over several meetings that are to be determined, as necessary. Enclosure

-2 -INFORMATION AND OTHER MATERIAL NECESSARY FOR THE REGULATORY AUDIT The information required for the audit is the licensee's revised model and supporting calculations, as well as documentation related to the storm surge and site specific probable maximum precipitation analyses. Other information needs will be discussed as audit meetings are scheduled. NRC AUDIT TEAM Title Team Member Affiliation Team Leader, NRR/JLD Anthony Minarik NRC Branch Chief, NRO/DSEA Chris Cook NRC Branch Chief, NRO/DSEA Aida Rivera NRC Technical Lead Nebivu Tiruneh NRC Technical Manager Richie Rivera-Lugo NRC Technical Support Various Contractors Pacific Northwest National Laboratory LOGISTICS The audit meetings will be coordinated with WCNOC staff. DELIVERABLES The NRC team will develop an audit summary report to convey the audit results. The report will be placed in ADAMS within 90 days of the completion of the final audit session, and will be publicly available. The information discussed in the audit may be included, fully or in part, in the development of the staff assessment as a result of the NRC staff's review of the FHRR. The NRC staff will request the licensee to submit any specific information the NRC staff needs to complete its staff assessment.

A. Heflin -2 -If you have any questions, please contact me at (301) 415-6185 or by e-mail at Anthony.Minarik@nrc.gov. Docket No. 50-482 Enclosure: Audit Plan cc w/encl: Distribution via Listserv DISTRIBUTION: PUBLIC JLD R/F RidsNRRJLD Resource HJones, NRO CCook, NRO JBowen, NRR RidsNrrDorllp14-1 MShams, NRR ARivera, NRO BHarvey,NRO ADAMS Accession No.: ML15274A243 Sincerely, IRA/ Anthony J. Minarik, Project Manager Hazards Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation MWillingham, NRO AMinarik, NRR KErwin, NRO MFranovich, NRR RidsNrrPMWolfCreek Resource OFFICE NRR/JLD/JHMB/PM NRR/JLD/JHMB/LA NRR/JLD/JHMB/BC NRR/JLD/JHMB/PM NAME AMinarik Slent MShams AMinarik DATE 10/5/2015 10/2/2015 10/5/2015 10/5/2015 OFFICAL RECORD COPY