View source for 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

{{Adams
| number = ML12164A567
| issue date = 06/08/2012
| title = 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
| author name = Schwarz C
| author affiliation = Entergy Operations, Inc
| addressee name = 
| addressee affiliation = NRC/NRR, NRC/Document Control Desk
| docket = 05000313, 05000368
| license number = DPR-051, NPF-006
| contact person = 
| case reference number = 0CAN061202
| document type = Letter type:
| page count = 5
| project = 
| stage = Response to RAI
}}

=Text=
{{#Wiki_filter:0CAN061202 

June 8, 2012 

U.S. Nuclear Regulatory Commission 

ATTN: Document Control Desk 

11555 Rockville Pike 

Rockville, MD 20852 

==SUBJECT:==
Entergy's 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.
(Entergy's) 90-day response to Reference 1 for Arkansas Nuclear One (ANO). Entergy Operations, Inc.
1448 S.R. 333 Russellville, AR  72802 

Tel  479-858-3110 Christopher J. Schwarz Vice President, Operations A rkansas Nuclear One 

0CAN061202 Page 2 of 3 

Recommendation 2.1: Flooding

The response date for ANO's 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 a fter 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 (Check One)
COMMITMENT ONE-TIME ACTION CONTINUING COMPLIANCE SCHEDULED COMPLETION DATE (If Required)
Submit flood hazard evaluation to the NRC. X  March 12, 2014 An approach for developing an Integrated Assessment for Arkansas Nuclear One (ANO) will be submitted.
X  60-days after NRC endorsement of the 

Integrated Assessment 

Guidance An Integrated Assessment report for 

ANO, if it is necessary, will be submitted 

two years after the flood evaluation is 

completed.
X  March 12, 2016 (if necessary)
Entergy will use the flooding walkdown 

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. X  November 27, 2012}}