ML12340A410

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

ML12340A410
Person / Time
Site:	Turkey Point
Issue date:	11/20/2012
From:	Kiley M Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2012-417
Download: ML12340A410 (2)

Text

NOV 2 0 2012 FPL. L-2012-417 10 CFR 50.54(f)U. S. Nuclear Regulatory Commission Attn.: Document Control Desk Washington, D.C. 20555-0001 Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 Response to NRC 10 CFR 50.54(f) Request for Information Regarding Near-Term Task Force Recommendation 2.3, Flooding

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; dated March 12, 2012, Accession No. ML12073A348.

2. M. Kiley (FPL) to U.S. Nuclear Regulatory Commission (L-2012-237), "Response to NRC Request for Information Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendation 2.1 and 2.3 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," Accession No. ML 12174A206, June 11, 2012.3. NRC Letter to Nuclear Energy Institute, Endorsement of Nuclear Energy Institute (NEI)12-07, "Guidelines for Performing Verification Walkdowns of Plant Flood Protection Features," dated May 31, 2012, Accession No. ML12144A142.

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 4 of that letter contains specific Requested Information associated with Near-Term Task Force Recommendation 2.3 for Flooding.

Item 2 of the Requested Information asks for a final walkdown report, which is to include the following:

a. Describe the design basis flood hazard level(s) for all flood-causing mechanisms, including groundwater ingress.b. Describe protection and mitigation features that are considered in the licensing basis evaluation to protect against external ingress of water into SSCs important to safety.c. Describe any warning systems to detect the presence of water in rooms important to safety.d. Discuss the effectiveness of flood protection systems and exterior, incorporated, and temporary flood barriers.

Discuss how these systems and barriers were evaluated using the acceptance criteria developed as part of Requested Information item 1 .h.e: Present information related to the implementation of the walkdown process (e.g., details of selection of the walkdown team and procedures) using the documentation template discussed in Requested Information item 1.j, including actions taken in response to the peer review.Florida Power & Light Company 9760 SW 3 4 4 St., Florida City, FL 33035 Turkey Point Nuclear Plant L-2012-417 Docket Nos. 50-250 and 50-251 Page 2 of 2 f. Results of the walkdown, including key findings and identified degraded, nonconforming or unanalyzed conditions.

Include a detailed description of the actions taken or planned to address these conditions using the guidance in Regulatory Issues Summary 2005-20, Revision 1, including entering the condition in the corrective action program.g. Document any cliff-edge effects identified and the associated basis. Indicate those that were entered into the corrective action program. Also include a detailed description of the actions taken or planned to address these effects.h. Describe any other planned or newly installed flood protection systems or flood mitigation measures including flood barriers that further enhance the flood protection.

Identify 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 procedure 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.

Per Reference 2, Florida Power & Light (FPL) confirmed that it will use the NRC-endorsed flooding walkdown procedure NEI 12-07, "Guidelines for Performing Verification Walkdowns of Plant Flood Protection Features" and submit a report by November 27, 2012, which corresponds to 180 days after NRC endorsement of the NEI. guidance (Reference 3). The enclosed report, Flooding Walkdown Report FPL061-PR-001, Rev. 0, was prepared in accordance with the guidance of NEI 12-07 and provides the requested flooding walkdown information.

This submittal completes FPL's response to the Reference 1, Enclosure 4 information request.This letter contains no new Regulatory Commitments and no revision to existing Regulatory Commitments.

If you have any questions or require additional information, please contact Mr. Robert J.Tomonto, Licensing Manager, at (305) 246-7327.I declare under penalty of perjury that the foregoing is true and correct.Executed on November -2 2 2012.V e r y t ul yu r s Michael Kiley Site Vice President Turkey Point Nuclear Plant Enclosure cc: USNRC Regional Administrator, Region II USNRC Project Manager, Turkey Point Nuclear Plant USNRC Senior Resident Inspector, Turkey Point Nuclear Plant