0CAN111302, Supplemental Response NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendations 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident

Supplemental Response NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendations 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident

ML13336A786
Person / Time
Site:	Arkansas Nuclear
Issue date:	11/26/2013
From:	Jeremy G. Browning Entergy Operations
To:	Office of Nuclear Reactor Regulation
References
0CAN111302
Download: ML13336A786 (5)

Text

Entergy Operations, Inc.

1448 S.R. 333 Russellville, AR 72802 Tel 479-858-3110 Jeremy G. Browning Site Vice President Arkansas Nuclear One 0CAN111302 November 26, 2013 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852

SUBJECT:

Supplemental Response NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendations 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident 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 to Entergy, 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 (NTTF) Review of Insights from the Fukushima Dai-ichi Accident, March 12, 2012 (ADAMS Accession No. ML12053A340)

(0CNA031208)

2. Entergy Letters to NRC, Flooding Walkdown Report - Entergys Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendation 2.3 of the NTTF Review of Insights from the Fukushima Dai-ichi Accident, dated November 27, 2012, (1CAN111202 and 2CAN111202)

Dear Sir or Madam:

On March 12, 2012, the NRC issued Reference 1 to all power reactor licensees. of Reference 1 requested that each licensee perform flood protection walkdowns. Entergy Operations, Inc. (Entergy) completed the flood protection walkdowns at Arkansas Nuclear One (ANO) and submitted the results in Reference 2.

Reference 2 contained a commitment to perform inspections where restricted access prevented walkdown of certain flood protection features. Walkdowns of the restricted access features have been completed.

0CAN111302 Page 2 of 3 Subsequent review of the Flooding Walkdown Reports revealed some discrepancies which have been entered into the Corrective Action Program. In addition, Entergy has verbally committed to providing a response to the NRC following the guidance in Frequently Asked Question 30 to address available physical margin by February 28, 2014. Entergy will provide revised Flooding Walkdown Reports (previously provided in Reference 2) for the ANO units including the restricted access features walkdown results and the resolved discrepancies along with the available physical margin submittal by February 28, 2014.

This letter contains a new regulatory commitment, which is 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 November 26, 2013.

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

Attachment:

List of Regulatory Commitments

0CAN111302 Page 3 of 3 cc: Mr. Marc L. Dapas 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 0CAN111302 List of Regulatory Commitments

Attachment to 0CAN111302 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 will provide revised Flooding X February 28, 2014 Walkdown Reports (previously provided in Reference 2) for the Arkansas Nuclear One units including the restricted access features walkdown results and the resolved discrepancies along with the available physical margin submittal.