0CAN011303, Units 1 and 2, Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 1, Integrated Assessment Approach

Units 1 and 2, Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 1, Integrated Assessment Approach

ML13031A030
Person / Time
Site:	Arkansas Nuclear
Issue date:	01/29/2013
From:	Jeremy G. Browning Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
0CAN011303
Download: ML13031A030 (5)

Text

Entergy Operations, Inc.

1448 S.R. 333 Russellville, AR 72802 Tel 479-858-3110 Jeremy G. Browning Vice President, Operations Arkansas Nuclear One 0CAN011303 January 29, 2013 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852

SUBJECT:

Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 1, Integrated Assessment Approach Arkansas Nuclear One - Units 1 and 2 Docket Nos. 50-313 and 50-368 License Nos. DPR-51 and NPF-6

REFERENCES:

1. NRC Letter, Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, March 12, 2012 (ADAMS Accession No. ML12053A340)

(0CNA031208)

2. NRC Interim Staff Guidance JLD-ISG-2012-05, Guidance for Performing the Integrated Assessment for External Flooding, Revision 0 (ADAMS Accession No. ML12311A214)

3. NRC Letter, D.L. Skeen (NRC) to J.E. Pollock (NEI), Trigger Conditions for Performing an Integrated Assessment and Due Date for Response, December 3, 2012 (ADAMS Accession No. ML12326A912)

Dear Sir or Madam:

On March 12, 2012, the NRC staff issued Reference 1 to request information associated with Near-Term Task Force (NTTF) Recommendation 2.1 for Flooding. Item 2 of to Reference 1 requests an Integrated Assessment Report from plant sites whose reevaluated flooding hazard is not bounded by their current design basis.

Further, Required Response 1 states: Within 60 days of the date of the NRCs issuance of guidance on implementation details of the Integrated Assessment Report, including criteria for identifying vulnerabilities, submit an approach for developing an Integrated Assessment Report including criteria for identifying vulnerabilities.

0CAN011303 Page 2 of 3 The following is Entergy Operations, Inc. (Entergys) 60-day response to Required Response 1.

On November 30, 2012, the NRC issued the Reference 2 Interim Staff Guidance.

Entergy commits to use the Reference 2 guidance as the approach for developing the NTTF 2.1 flooding Integrated Assessment Report for Arkansas Nuclear One, Unit-1 and Unit-2 if the reevaluated flooding hazard is not bounded by the current design basis flooding evaluation.

Entergy also commits to use the guidance provided in Reference 3 regarding the trigger conditions and scope of any required Integrated Assessment.

This letter contains two new regulatory commitments, which are identified in the attachment. Should you have any questions regarding this submittal, please contact Stephenie Pyle at 479.858.4704.

I declare under penalty of perjury that the foregoing is true and correct. Executed on January 29, 2013.

Sincerely, Original signed by Jeremy G. Browning JGB/nbm

Attachment:

List of Regulatory Commitments

0CAN011303 Page 3 of 3 cc: Mr. Elmo E. Collins Regional Administrator U. S. Nuclear Regulatory Commission, Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 U. S. Nuclear Regulatory Commission Attn: Director, Office of Nuclear Reactor Regulation One White Flint North 11555 Rockville Pike Rockville, MD 20852 NRC Senior Resident Inspector Arkansas Nuclear One P.O. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Mr. Kaly Kalyanam MS O-8 B1 One White Flint North 11555 Rockville Pike Rockville, MD 20852 U. S. Nuclear Regulatory Commission Attn: Robert J. Fretz Jr.

MS 4A15A One White Flint North 11555 Rockville Pike Rockville, MD 20852-2378 U. S. Nuclear Regulatory Commission Attn: Robert L. Dennig MS 10E1 One White Flint North 11555 Rockville Pike Rockville, MD 20852-2378 U. S. Nuclear Regulatory Commission Attn: G. Edward Miller MS 8B1A One White Flint North 11555 Rockville Pike Rockville, MD 20852-2378

Attachment to 0CAN011303 List of Regulatory Commitments

Attachment to 0CAN011303 Page 1 of 1 List of Regulatory Commitments The following table identifies those actions committed to by Entergy in this document. Any other statements in this submittal are provided for information purposes and are not considered to be regulatory commitments.

TYPE SCHEDULED (Check One) COMPLETION COMMITMENT DATE ONE-TIME CONTINUING (If Required)

ACTION COMPLIANCE Entergy commits to use Interim Staff X March 12, 2016 Guidance JLD-ISG-2012-05, Guidance for Performing the Integrated Assessment for (Upon submittal of External Flooding, Revision 0 guidance as the Integrated the approach for developing the NTTF 2.1 Assessment Report, flooding Integrated Assessment Report if required, which is for Arkansas Nuclear One, Unit-1 and two years following Unit-2 if the reevaluated flooding hazard submittal of the is not bounded by the current design sites Hazard basis flooding evaluation. Reevaluation Report)

Entergy commits to use the guidance X March 12, 2016 provided in NRC Letter, D.L. Skeen (NRC) to J.E. Pollock (NEI), Trigger (Upon submittal of Conditions for Performing an Integrated the Integrated Assessment and Due Date for Response, Assessment Report, regarding the trigger conditions and scope if required, which is of any required Integrated Assessment. two years following submittal of the sites Hazard Reevaluation Report)