ML13154A374

Calvert Cliffs Nuclear Power Plant, Unit 2, Response to 10 CFR 50.54(f) Request for Information: Near-Term Task Force Recommendation 2.3, Flooding

ML13154A374
Person / Time
Site:	Calvert Cliffs
Issue date:	05/29/2013
From:	Korsnick M G Constellation Energy Nuclear Group, Calvert Cliffs, EDF Group
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML13154A374 (2)

Text

Mary G. Korsnick Chief Nuclear Officer SVP -Chief Operations Officer CENG.a joint venture of COnatmiatiog-

,'--h O ewskwi .6 Office 410-470-5133 Fax 443-213-6739 E-mail: Maria.Korsnick@cengllc.com May 29,2013 U.S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852 ATTENTION:

SUBJECT:

Document Control Desk Calvert Cliffs Nuclear Power Plant, Unit 2 Renewed Facility Operating License No. DPR-69 Docket No. 50-318 Response to 10 CFR 50.54(f) Request for Information:

Near-Term Task Force Recommendation 2.3, Flooding

REFERENCES:

(a) Letter from E. J. Leeds (NRC) and M. R. Johnson (NRC) to All Power Reactor Licensees and Holders of Construction Permits in Active or Deferred Status, dated March 12, 2012, 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, (ML 12073A348)(b) Letter from S. L. Belcher (CENG) to Document Control Desk (NRC), dated June 8, 2012, Ninety-Day Response to Flooding Recommendations 2.1 and 2.3 of 10 CFR 50.54(f) Request for Information (ML12164A369)(c) Letter from D. L. Skeen (NRC) to A. P. Heymer (NEI), dated May 31, 2012, Endorsement of Nuclear Energy Institute (NEI) 12-07, "Guidelines for Performing Verification Walkdowns of Plant Flood Protection Features" (ML12 144A 142)(d) Letter from M. G. Korsnick (CENG) to Document Control Desk (NRC)dated November 27, 2012, Response to 10 CFR 50.54(f) Request for Information, Recommendation 2.3, Flooding (ML 12335A029)

On March 12, 2012, the NRC issued Reference (a) to request in Enclosure 4 that licensees perform flood protection walkdowns to identify and address through the corrective action program plant-specific degraded, nonconforming, or unanalyzed conditions and cliff-edge effects and verify the adequacy of monitoring and maintenance programs.Constellation Energy Nuclear Group, LLC 100 Constellation Way, Suite 200C, Baltimore, MD 21202 pc) \pf_ý-

Document Control Desk May 29, 2013 Page 2 Reference (b) confirmed that Constellation Energy Nuclear Group (CENG) licensees will use the flooding walkdown procedure Nuclear Energy Institute (NEI) 12-07, Guidelines for Performing Verification Walkdowns of Plant Flood Protection Features, and will respond within 180 days of NRC's endorsement of the flooding walkdown procedure.

The NRC endorsed NEI 12-07 in Reference (c).Reference (d) provided Attachments 1 -4, the responses for R.E. Ginna Nuclear Power Plant, Nine Mile Point Nuclear Station, and Calvert Cliffs Nuclear Power Plant, to comply with the commitment in Reference (b). Attachment 4 of Reference (d) included a statement that the Calvert Cliffs Unit 2 27-foot West Piping Penetration Room was unable to be inspected due to inaccessibility and the schedule to complete the walkdowns in this room.For Calvert Cliffs Nuclear Power Plant, Unit 2, CENG completed the scheduled walkdown in the piping penetration room on March 5, 2013. The walkdown was conducted in accordance with NEI 12-07. Parts a through e of the Walkdown Record Form provided in Appendix B to NEI 12-07 were completed and peer reviewed.

No deficiencies were encountered.

The conclusions outlined in Attachment 4 of Reference (c)remain valid.There are no regulatory commitments in this letter.If there are any questions regarding this submittal, please contact Everett (Chip) Perkins everett.perkinsicengllc.com at 410-470-3928.

I declare under penalty of perjury that the foregoing is true and correct. Executed on May 29, 2013.Sincerely, Mary .Korsnick MGK/CM cc: B. K. Vaidya, NRC Resident Inspector, Calvert Cliffs M. C. Thadani, NRC S. Gray, DNR N. S. Morgan, NRC W. M. Dean, NRC