NLS2018066, Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3 - Integrated Assessment for External Flooding

Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3 - Integrated Assessment for External Flooding

ML18365A088
Person / Time
Site:	Cooper
Issue date:	12/18/2018
From:	Dent J Nebraska Public Power District (NPPD)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NLS2018066
Download: ML18365A088 (2)

Text

SECURITY-RELATED INFORMATION

-WITHHOLD IN ACCORDANCE WITH 10 CFR 2.390 Nebraska Public Power District NLS2018066 December 18, 2018 U.S. Nuclear Regulatory Commission Attn: Document Control Desk 11555 Rockville Pike Rockville, MD 20852 "Always there when you need us"

Subject:

Response to March 12, 2012, Request for Information Enclosure 2, Recommendation 2.1, Flooding, Required Response 3 -Integrated Assessment for External Flooding Cooper Nuclear Station, Docket No 50-298, DPR-46

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 2. NPPD Letter to NRC, "Nebraska Public Power District's Response to Request for Information Pursuant to 10 CFR 50.54(+/-) Regarding the Flooding Aspects of Recommendation 2.1 of the Near-Term Task Force Review of Insights from the Fukushima Dai-ichi Accident," dated February 3, 2015 3. NPPD Letter to NRC, "Revision to Nebraska Public Power District's Flood Hazard Reevaluation Report," dated September 29, 2016

Dear Sir or Madam:

The purpose of this correspondence is to provide Nebraska Public Power District's (NPPD) Integrated Assessment of the reevaluated external flood hazards at Cooper Nuclear Station (CNS) in response to the Nuclear Regulatory Commission's (NRC) information request. (Reference

1) associated with Near-Term Task Force Recommendation 2.1, Flooding.

Reference 1 required licensees to submit a flood hazard reevaluation report (FHRR). NPPD submitted the FHRR for CNS per Reference 2, and a revised FHRR for CNS per Reference

3. Another required response of Reference 1 directed licensees to submit an Integrated Assessment Report for any flood causing mechanism not bounded by the current design basis. This submittal completes the actions related to external flooding required by Reference

1. ;4-/) / O COOPER NUCLEAR STATION P.O. Box 98 I Brownville, NE 68321-0098 Telephone: (402) 825-3811

/ Fax: (402) 825-5211 http://www.nppd.com THE ENCLOSURE TO THIS LETTER CONTAINS SECURITY-RELATED INFORMATION.

UPON SEPARATION FROM THE ENCLOSURE, THIS COVER LETTER IS DECONTROLLED.

,lit SECURITY-RELATED INFORMATION

-WITHHOLD IN ACCORDANCE WITH 10 CFR 2.390 NLS2018066 Page 2 of2 NPPD requests the enclosure, which contains security-related information, be withheld from public disclosure in accordance with 10 CPR 2.390 .. There are no new regulatory commitments contained in this submittal.

Should you have any questions or if additional information is required, please contact Jim Shaw, Licensing Manager, at ( 402) 825-2788.

I declare under penalty of perjury that the foregoing is true and correct. Executed on: n /1 'fl /20 r'3:: Sincerely, ~) Vice President

-Nuclear and Chief Nuclear Officer /bk

Enclosure:

Cooper Nuclear Station -Integrated Assessment for External Flooding cc: Regional Administrator, w/enclosure USNRC -Region IV Director, w/enclosure USNRC -Office of Nuclear Reactor Regulation Cooper Project Manager, w/enclosure USNRC -NRR Plant Licensing Branch IV Senior Res~dent Inspector, w/enclosure USNRC-CNS NPG Distribution, w/o enclosure CNS Records, w/enclosure THE ENCLOSURE TO THIS LETTER CONTAINS SECURITY-RELATED INFORMATION.

UPON SEPARATION FROM THE ENCLOSURE, THIS COVER LETTER IS DECONTROLLED.