0CAN061202, Response to NRC Request for Information Per 10CFR50.54(f) Re Flooding Aspects of Recommendations 2.1 and 2.3 of the Near-Term Task Force Review of Insights from Fukushima Dai-ichi Accident

Response to NRC Request for Information Per 10CFR50.54(f) Re Flooding Aspects of Recommendations 2.1 and 2.3 of the Near-Term Task Force Review of Insights from Fukushima Dai-ichi Accident

ML12164A567
Person / Time
Site:	Arkansas Nuclear
Issue date:	06/08/2012
From:	Schwarz C Entergy Operations
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
0CAN061202
Download: ML12164A567 (5)

Text

Entergy Operations, Inc.

1448 S.R. 333 Russellville, AR 72802 Tel 479-858-3110 Christopher J. Schwarz Vice President, Operations Arkansas Nuclear One 0CAN061202 June 8, 2012 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852

SUBJECT:

Entergys Response to NRC Request for Information (RFI)

Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendations 2.1 and 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, RFI 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, dated March 12, 2012 (0CNA031208)

(ML12053A340)

2. NRC Letter to Entergy, Prioritization of Response Due Dates for Site Flooding Hazard Evaluations, dated May 11, 2012 (0CNA051203)

(ML12097A509)

3. NRC letter, Endorsement of Nuclear Energy Institute (NEI) 12-07, Guidelines for Performing Verification Walkdowns of Plant Flood Protection Features, dated May 31, 2012

Dear Sir or Madam:

On March 12, 2012, the NRC issued Reference 1 to all power reactor licensees.

Enclosures 2 and 4 of Reference 1 contain specific requested actions, requested information, and required responses associated with Recommendations 2.1 and 2.3 for flooding evaluations and walkdowns. This letter provides Entergy Operations, Inc.

(Entergys) 90-day response to Reference 1 for Arkansas Nuclear One (ANO).

0CAN061202 Page 2 of 3 Recommendation 2.1: Flooding The response date for ANOs flood hazard evaluation was identified in Reference 2 as March 12, 2014, which corresponds to two years from the date of Reference 1.

Entergy plans to meet the requested date for the other required responses in of Reference 1. Specifically, an approach for developing an Integrated Assessment for ANO will be submitted 60 days after NRC endorsement of the Integrated Assessment Guidance. In addition, an Integrated Assessment report for ANO, if it is necessary, will be submitted two years after the flood evaluation is submitted.

Recommendation 2.3: Flooding For flooding Recommendation 2.3 (walkdowns), Enclosure 4 of Reference 1 states that each licensee is to confirm that it will use the NRC-endorsed flooding walkdown procedure or provide a description of the process it will use. Entergy confirms that it will use the flooding walkdown procedure (NEI 12-07, Guidelines for Performing Verification Walkdowns of Plant Flood Protection Features) endorsed by Reference 3 as the basis for the flooding walkdowns at ANO.

Entergy plans to comply with the response timeline in Enclosure 4 of Reference 1.

Specifically, Entergy will submit a report documenting the results of its flooding design basis walkdowns at ANO by November 27, 2012, which corresponds to 180 days after NRC endorsement of the generic guidance.

The new commitments contained in this submittal are summarized in the attachment.

Should you have any questions concerning the content of this letter, please contact Stephenie Pyle at 479.858.4704.

I declare under penalty of perjury that the foregoing is true and correct. Executed on June 8, 2012.

Sincerely, Original signed by Christopher J. Schwarz CJS/nbm

Attachment:

List of Regulatory Commitments

0CAN061202 Page 3 of 3 cc: Mr. Elmo 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

Attachment to 0CAN061202 List of Regulatory Commitments

Attachment to 0CAN061202 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 Submit flood hazard evaluation to the X March 12, 2014 NRC.

An approach for developing an Integrated X 60-days after NRC Assessment for Arkansas Nuclear One endorsement of the (ANO) will be submitted. Integrated Assessment Guidance An Integrated Assessment report for X March 12, 2016 ANO, if it is necessary, will be submitted (if necessary) two years after the flood evaluation is completed.

Entergy will use the flooding walkdown X November 27, 2012 procedure (Nuclear Energy Institute 12-07, Guidelines for Performing Verification Walkdowns of Plant Flood Protection Features) endorsed by Reference 3 as the basis for the flooding walkdowns and plans to comply with the response timeline in Enclosure 4 of Reference 1 by submitting a report documenting the results of its flooding design basis walkdowns at ANO 180 days after NRC endorsement of the generic guidance.