NL-14-0805, Additional Information Regarding the Request for Extension of Flood Hazard Reevaluation Report Due Date

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Additional Information Regarding the Request for Extension of Flood Hazard Reevaluation Report Due Date
ML14141A629
Person / Time
Site: Farley  Southern Nuclear icon.png
Issue date: 05/21/2014
From: Pierce C
Southern Co, Southern Nuclear Operating Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-14-0805
Download: ML14141A629 (2)
v • d • e


Text

Charles R. Pierce Southern Nuclear Regulatory Affairs Director Operating Company, Inc.

40 Inverness Center Parkway Post Office Box 1295 Birmingham , AL 35201 Tel 205.992.7872 Fax 205.992.7601 sou Ma y 21 , 20 1 4 Docket Nos.: 50-348 NL-14-0805 50-364 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington , D. C. 20555-0001 Joseph M. Farley Nuclear Plant- Units 1 and 2 Additional Information Regarding the Request for Extension of Flood Hazard Reevaluation Report Due Date

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 Daiichi Accident; dated March 12, 2012. (ML12053A340)
2. Letter to NRC, Southern Nuclear Operating Company Request to Obtain U.S.

Army Corps of Engineers (USAEC) Information , dated September 26, 2013.

(ML13274A343)

3. Letter to NRC, Joseph M. Farley Nuclear Plant- Units 1 and 2 Request for Extension of Flood Hazard Reevaluation Report Due Date, dated February 28, 2014. (ML14072A486)

Ladies and Gentlemen:

On March 12, 2012, the Nuclear Regulatory Commission (NRC) issued Reference 1 to all power reactor licensees and holders of construction permits in active or deferred status. Enclosure 1 of Reference 1 requested each addressee perform and submit a Flood Hazard Reevaluation Report (FHRR).

In order to fully perform this reevaluation for the Joseph M. Farley Nuclear Plant (FNP) site, Southern Nuclear Operating Company (SNC) submitted Reference 2 requesting specific information be obtained by the NRC from the U.S. Army Corps of Engineers (USAGE) and be provided to SNC. To meet all of the requirements of Reference 1, SNC submitted Reference 3 which outlined the need for an extension request to provide the FHRR 120 days after the USAGE flooding analysis information is received.

U.S. Nuclear Regulatory Commission NL-14-0805 Page2 On May 16, 2014 during a public teleconference with members of the NRC staff, SNC agreed to provide additional information which the NRC has requested in order to grant the extension.

Portions of the FHRR have already been completed which SNC has determined to result in a higher than anticipated Local Intense Precipitation ponding level at FNP. The highest potential ponding level during the LIP event at the doors leading to safety related equipment is, in most cases, less than 6 inches. This level follows a rainfall event that includes 19.33 inches in one hour. The hydrodynamic effects associated with the ponding are minimal. As a result, an attachment to FNP-0-AOP-21 has been drafted which includes detailed instruction regarding the use of sandbags near specific doors to keep water from entering the buildings.

As a normal practice, the National Weather Service is monitored and if an event of the above-stated magnitude is a potential, the draft AOP-21 attachment would be used by FNP. Sand and sandbags have been ordered and will be available to implement this draft procedure by June 1, 2014. These interim actions will be discussed further when the FHRR is submitted.

This letter contains no new regulatory commitments. If you have any questions, please contact John Giddens at 205.992.7924.

Respectfully submitted, ttl.~

C.R. Pierce Regulatory Affairs Director CRP/JMG cc: Southern Nuclear Operating Company Mr. S. E. Kuczynski, Chairman, President & CEO Mr. D. G. Bost, Executive Vice President & Chief Nuclear Officer Ms. C. A. Gayheart, Vice President - Farley Mr. B. L. lvey, Vice President- Regulatory Affairs Mr. B. J. Adams, Vice President- Engineering Mr. D. R. Madison, Vice President- Fleet Operations RTYPE: CFA04.054 U. S. Nuclear Regulatory Commission Mr. V. M. McCree, Regional Administrator Mr. S. A. Williams, NRR Project Manager- Farley Mr. P. K. Niebaum, Senior Resident Inspector- Farley Alabama Department of Public Health Dr.D. E. Williamson, State Health Officer

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