ML12334A070

Response to NRC 10 CFR 50.54(f) Request for Information Regarding Near-Term Task Force Recommendation 2.3, Seismic

ML12334A070
Person / Time
Site:	Duane Arnold
Issue date:	11/27/2012
From:	Anderson R L NextEra Energy Duane Arnold
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NG-12-0467 12Q4118-R-001, Rev 1
Download: ML12334A070 (3)

Text

NExTeram ENER2Y November 27, 2012 NG-12-0467 10 CFR 50.54(f)U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Duane Arnold Energy Center Docket No. 50-331 Renewed Op. License No. DPR-49 Response to NRC 10 CFR 50.54(f) Request for Information Regarding Near-Term Task Force Recommendation 2.3, Seismic

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-lchi Accident," dated March 12, 2012, Accession No. ML12073A348

2) NRC Letter to Nuclear Energy Institute, Endorsement of Electric Power Research Institute (EPRI) Draft Report 1025286, "Seismic Walkdown Guidance," dated May 31, 2012, Accession No. ML12145A529

3) NextEra Energy Duane Arnold, LLC's 120-Day Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Seismic Aspects of Recommendation 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident, NG-12-0276, dated July 9, 2012, Accession No. ML12192A094 On March 12, 2012, the NRC staff issued Reference 1 requesting information pursuant to Title 10 of the Code of Federal Regulations 50.54(f).

Enclosure 3 of that letter contains specific Requested Information associated with Near-Term Task Force Recommendation 2.3 for Seismic. Item 2 of the Requested Information asks for a final walkdown report, which is to include the following:

a. Information on the plant-specific hazard licensing bases and a description of the protection and mitigation features considered in the licensing basis evaluation;

b. Information related to the implementation of the walkdown process;c. A list of plant-specific vulnerabilities (including any seismic anomalies, outliers, or other findings) identified by the IPEEE and a description of the actions taken to eliminate or reduce them (including their completion dates);d. Results of the walkdown, including key findings and identified degraded, nonconforming, or unanalyzed conditions; include a detailed description of the actions taken or planned t) h b NextEra Energy Duane Arnold, LLC, 3277 DAEC Road, Palo, IA 52324 Document Control Desk November 27, 2012 Page 2 of 2 to address these conditions using the guidance in Regulatory Issues Summary 2005-20, Revision, 1, including entering the condition in the corrective action program;e. Any planned or newly installed protection and mitigation features; and f. Results and any subsequent actions taken in response to the peer review.Per Reference 1, the above report is to be submitted within 180 days of the NRC's endorsement of the walkdown process and should include a list of any areas that could not be inspected due to inaccessibility and should identify a schedule for when the walkdown will be completed.

On May 31, 2012, the NRC issued its endorsement of EPRI Draft Report 1025286, Seismic Walkdown Guidance (Reference 2). Based on the Reference 2 endorsement date, the subject seismic walkdown report is due by November 27, 2012.Per Reference 3, NextEra Energy Duane Arnold, LLC (hereafter, NextEra Energy Duane Arnold) confirmed that it will use the NRC-endorsed EPRI Report 1025286, Seismic Walkdown Guidance.

The enclosed report, SEISMIC WALKDOWN REPORT (12Q4118-R-001, Revision 1), was prepared in accordance with the approved EPRI guidance and provides the requested seismic walkdown information.

This submittal completes NextEra Energy Duane Arnold's response to the Reference 1, Enclosure 3 information request.This letter makes no new commitments or changes to any existing commitments.

Should you have any questions regarding this submittal, please contact Ken Putnam, at 319-851-7238.I declare under penalty of perjury that the foregoing is true and correct.Executed on November 27, 2012 Richard L. AndersL.Vice President, Duane Arnold Energy Center NextEra Energy Duane Arnold, LLC Enclosure cc: NRC Regional Administrator (Region Il1)NRC Resident Inspector Office (DAEC)NRC Licensing Project Manager (DAEC)

Enclosure to NG-12-0467 SEISMIC WALKDOWN REPORT 12Q4118-R-001, Revision 1 IN RESPONSE TO THE 50.54(f) INFORMATION REQUEST REGARDING NEAR-TERM TASK FORCE RECOMMENDATION 2.3: SEISMIC for the Duane Arnold Energy Center 359 Pages to Follow