ML15274A283

Nuclear Regulatory Commission for the Audit of Southern Nuclear Operating Company, Inc.'S Flood Hazard Reevaluation Report Submittal Relating to the Near-Term Task Force Recommendation 2.1 Flooding for Edwin I. Hatch Nuclear Plant, Units 1

ML15274A283
Person / Time
Site:	Hatch
Issue date:	10/05/2015
From:	Minarik A Japan Lessons-Learned Division
To:	Pierce C Southern Nuclear Operating Co
Minarik, Anthony, NRR/JLD 415-6185
References
Download: ML15274A283 (5)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 5, 2015 Mr. C. R. Pierce Regulatory Affairs Director Southern Nuclear Operating Co., Inc.

P.O. Box 1295 I BIN B038 Birmingham, AL 35201-1295

SUBJECT:

NUCLEAR REGULATORY COMMISSION PLAN FOR THE AUDIT OF SOUTHERN NUCLEAR OPERATING COMPANY, INC.'S FLOOD HAZARD REEVALUATION REPORT SUBMITTAL RELATING TO THE NEAR-TERM TASK FORCE RECOMMENDATION 2.1-FLOODING FOR EDWIN I. HATCH NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS. MF3868 AND MF3869)

Dear Mr. Pierce:

This letter documents the U.S Nuclear Regulatory Commission (NRC) staff's plan to perform a regulatory audit of Southern Nuclear Operating Company, lnc.'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 Edwin I. Hatch Nuclear Plant, Units 1 and 2 (HNP). 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 HNP FHRR, which was submitted on March 6, 2014 (ADAMS Accession No. ML14069A054). Specifically, the audit will provide the NRC with a better understanding of the analyses of the flooding hazards presented in the HNP 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 Mr. John Giddens of your staff.

C. Pierce If you have any questions, please contact me at (301) 415-6185 or by e-mail at Anthony.Minari k@n re. gov.

Sincerely, narik, ProJ Manager Hazards Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation Docket Nos. 50-321 and 50-366

Enclosure:

Audit Plan cc w/encl: Distribution via Listserv

NRC PLAN FOR THE AUDIT OF SOUTHERN NUCLEAR OPERATING COMPANY. INC.'S FLOOD HAZARD REEVALUATION REPORT SUBMITTAL RELATING TO THE NEAR-TERM TASK FORCE RECOMMENDATION 2.1-FLOODING FOR EDWIN I. HATCH NUCLEAR PLANT. UNITS 1 AND 2 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 1O 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 6, 2014, Southern Nuclear Operating Company, Inc. (SNC, the licensee) submitted its Flood Hazard Reevaluation Report (FHRR) for Edwin I. Hatch Nuclear Plant, Units 1 and 2 (HNP) (Agencywide Documents Access and Management System Accession No. ML14069A054). The NRC staff has begun its review of the aforementioned submittals and plans to conduct a regulatory audit of SNC 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 HNP 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

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 Nebiyu Tiruneh NRC Technical Manager Laura Quinn-Willingham NRC Technical Support Various Contractors Oak Ridge National Laboratory LOGISTICS The audit meetings will be coordinated with SNC 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.

C. Pierce If you have any questions, please contact me at (301) 415-6185 or by e-mail at Anthony.Minarik@nrc.gov.

Sincerely, IRA/

Anthony J. Minarik, Project Manager Hazards Management Branch Japan Lessons-Learned Division Office of Nuclear Reactor Regulation Docket Nos. 50-321 and 50-366

Enclosure:

Audit Plan cc w/encl: Distribution via Listserv DISTRIBUTION:

PUBLIC JLD R/F RidsNRRJLD Resource RidsNrrDorllpl2-1 HJones, NRO MShams, NRR MWillingham, NRO AMinarik, NRR CCook, NRO ARivera, NRO KErwin, NRO MFranovich, NRR JBowen, NRR BHarvey,NRO RidsNrrPMHatch Resource ADAMS Accession No.: ML15274A283 OFFICE NRR/JLD/JHMB/PM NRR/JLD/JHMB/LA NRR/JLD/JHMB/BC NRR/JLD/JHMB/PM NAME AMinarik Slent MShams AMinarik DATE 09/30/15 10/2/2015 10/5/2015 10/5/2015 OFFICAL RECORD COPY