ML113390265

Request for Additional Information, 60-Day Response to NRC Bulletin 2011-01, Mitigating Strategies

ML113390265
Person / Time
Site:	Cooper
Issue date:	12/06/2011
From:	Lynnea Wilkins Plant Licensing Branch IV
To:	O'Grady B Nebraska Public Power District (NPPD)
Wilkins, L E, NRR/DORL/LPL4, 415-1377
References
TAC ME6420
Download: ML113390265 (5)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 December 6, 2011 Mr. Brian J. OGrady Vice President-Nuclear and CNO Nebraska Public Power District 72676 648A Avenue Brownville, NE 68321

SUBJECT:

COOPER NUCLEAR STATION - REQUEST FOR ADDITIONAL INFORMATION RE: 60-DAY RESPONSE TO BULLETIN 2011-01 ,"MITIGATING STRATEGIES' (TAC NO. ME6420)

Dear Mr. OGrady:

On May 11, 2011, the U.S. Nuclear Regulatory Commission (NRC) issued Bulletin 2011-01,

'Mitigating Strategies' (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML111250360), to all holders of operating licenses for nuclear power reactors, except those that have permanently ceased operation and have certified that fuel has been removed from the reactor vessel. The purpose of the bulletin was to obtain a comprehensive verification that licensees' mitigating strategies to maintain or restore core cooling, spent fuel cooling, and containment following large explosions or fires were in compliance with the requirements in Title 10 of the Code of Federal Regulations (10 CFR) Section 50.54(hh)(2).

The bulletin requested information on licensees' 10 CFR 50.54(hh)(2) mitigating strategies in light of the recent events at Japan's Fukushima Daiichi facility to determine if (1) additional efforts are needed to ensure compliance with current requirements, (2) whether enhancement to the existing regulations and guidance are necessary, and/or assessment of program implementation is needed, (2) the current inspection program should be enhanced, or (3) to determine if further regulatory action is warranted.

The bulletin required two sets of responses pursuant to the provisions of 10 CFR 50.54(f). The first responses were due 30 days after issuance of the bulletin. By letter dated June 10, 2011 (ADAMS Accession No. ML11164A266). Nebraska Public Power District (the licensee),

provided a response to the first set of questions for Cooper Nuclear Station. The second responses were due 60 days after issuance of the bulletin. By letter dated July 7, 2011 (ADAMS Accession No. ML11192A032), the licensee responded to this second set of questions.

The NRC staff has reviewed the information provided in your letters dated June 10 and July 7, 2011, and determined that additional information is needed for the NRC staff to complete its review of your 60-day response to the bulletin. The request for additional information (RAI) was e-mailed to Mr. Edward McCutchen and others of your staff on November 17, 2011 (ADAMS Accession No. ML113220241). On November 28, 2011, Ms. LuAnn Bray of your staff stated that a clarifying call was not needed. It was agreed that a response to the RAI would be received within 30 days of receipt of this letter. The RAI is enclosed.

B. O'Grady - 2 If you have any questions, please contact me at 301-415-1377 or via e-mail at Iynnea. wilkins@nrc.gov.

Sincerely,

~

y Lynnea E. Wilkins, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-298

Enclosure:

Request for Additional Information cc w/encl: Distribution via Listserv

REQUEST FOR ADDITIONAL INFORMATION 60-DAY RESPONSE TO BULLETIN 2011-01, "MITIGATING STRATEGIES" NEBRASKA PUBLIC POWER DISTRICT COOPER NUCLEAR STATION DOCKET NO. SO-298 On May 11, 2011, the U.S. Nuclear Regulatory Commission (NRC) issued Bulletin 2011-01, "Mitigating Strategies" (Agencywide Documents Access and Management System (ADAMS)

Accession No. ML 1112S0360), to all holders of operating licenses for nuclear power reactors, except those that have permanently ceased operation and have certified that fuel has been removed from the reactor vessel. The purpose of the bulletin was to obtain a comprehensive verification that licensees' mitigating strategies to maintain or restore core cooling, spent fuel cooling, and containment following large explosions or fires were in compliance with the requirements in Title 10 of the Code of Federal Regulations (10 CFR) Section SO.S4(hh)(2).

The bulletin required two sets of responses pursuant to the provisions of 10 CFR SO.S4(f). The first responses were due 30 days after issuance of the bulletin. By letter dated June 10, 2011 (ADAMS Accession No. ML11164A266), Nebraska Public Power District (the licensee),

provided a response to the first set of questions for Cooper Nuclear Station. The second responses were due 60 days after issuance of the bulletin. By letter dated July 7,2011 (ADAMS Accession No. ML11192A032), the licensee responded to this second set of questions.

The NRC staff has reviewed the information provided in your letters dated June 10 and July 7, 2011, and determined that additional information is needed for the NRC staff to complete its review of your 60-day response to the bulletin.

1. Please describe in detail how you ensure that a vehicle is available to move the B.S.b portable pump and other B.S.b equipment to the appropriate place when needed.

The bulletin requested that each licensee describe in detail the controls for ensuring equipment needed to execute the mitigating strategies will be available when needed. A vehicle is typically needed to implement the strategies since the portable pump and other equipment is stored away from target areas.

2. Please identify the minimum inventory frequency for equipment needed for the mitigating strategies not specifically identified in response to the bulletin. Alternatively, please describe the inventory frequency for firefighter turnout gear needed to support the mitigating strategies.

The bulletin requested that each licensee describe in detail the controls for ensuring equipment needed to execute the mitigating strategies will be available when needed. In addition to the primary equipment needed to implement the mitigating strategies, Enclosure

-2 equipment, such as firefighter turnout gear, tools, and instruments, are also needed.

The 60-day response specifically identifies the inventory frequency for tools and instruments but does not identify firefighter turnout gear.

B. OGrady - 2 If you have any questions, please contact me at 301-415-1377 or via e-mail at Iynnea.wilkins@nrc.gov.

Sincerely,

/ra!

Lynnea E. Wilkins, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-298

Enclosure:

Request for Additional Information cc w/encl: Distribution via Listserv DISTRIBUTION:

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