ML11335A054

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

ML11335A054
Person / Time
Site:	Catawba
Issue date:	12/21/2011
From:	Jacqueline Thompson Plant Licensing Branch II
To:	Morris J Duke Energy Carolinas
Thompson J, 415-1919
References
TAC ME6414, TAC ME6415, BL-11-001
Download: ML11335A054 (4)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555*0001 December 21, 2011 Mr. J. R. Morris Site Vice President Catawba Nuclear Station Duke Energy Carolinas, LLC 4800 Concord Road York, SC 2974S SUB~IECT: CATAWBA NUCLEAR STATION, UNITS 1 AND 2, REQUEST FOR ADDITIONAL INFORMATION (RAI) REGARDING 60-DAY RESPONSE TO BULLETIN 2011-01, "MITIGATING STRATEGIES" (TAC NOS. ME6414 AND ME641S)

Dear Mr. Morris:

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 a large explosion or fire were compliant with Title 10 of the Code of Federal Regulations (10 CFR), Part SO, Section SO.S4(hh)(2). The bulletin requested information on a licensee's 10 CFR SO.S4(hh)(2) mitigating strategies in light of the recent events at Japan's Fukushima Daiichi facility to determine if (1) additional assessment of program implementation is needed, (2) the current inspection program should be enhanced, or (3) further regulatory action is warranted.

The bulletin required two sets of responses pursuant to the provisions of 10 CFR SO. 54(f). The first responses were due 30 days after issuance of the bulletin (June 10, 2011). By letter dated June 8,2011 (ADAMS Accession No. ML 1116SA008), you provided a response to the first set of questions for Catawba Nuclear Station, Units 1 and 2. The second responses were due 60 days after issuance of the bulletin (July 11, 2011). By letter dated July 11, 2011 (ADAMS Accession No. ML 1119SA069). you responded to this second set of questions.

The NRC staff has reviewed the submitted information and determined that it needs additional information regarding your 60-day response to the bulletin. Please respond to the enclosed request for additional information within 30 days of the date of this letter.

J. Morris -2 If you have any questions regarding this letter. please call me at 301-415-1119.

Sincerely.

Jon Thompson. Project Manager Plant Licensing Branch 11-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket Nos. 50-413 and 50-414

Enclosure:

RAI cc w/encl: Distribution via Listserv

REQUEST FOR ADDITIONAL INFORMATION NRC BULLETIN 2011-01, "MITIGATING STRATEGIES" CATAWBA NUCLEAR STATION, UNITS 1 AND 2 DOCKET NOS. 50-413 AND 50-414

1. Describe in detail how you ensure that a vehicle is available to move the B.5.b portable pump and other B.5.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. The NRC staff could not determine if you performed activities to ensure that a tow vehicle would be available when needed.

2. Clarify what you mean by biannually.

Your response states that you perform functional checks of radios, batteries, and chargers biannually. It is not clear if these functional checks are performed twice a year or every 2 years.

Enclosure

ML11335A054 OFFICE NRRlLPL2-1/PM NRRlLPL2-1/LA NRRlPGCB/PM NRRlPGCBlBC NRRlLPL2-1/BC NRRlLPL2-1/PM BPurnell SRosenberg NAME JThompson MO'Brien (MBanic for) GKulesa JThompson DATE 12/14/11 12/20/11 12/21/11 12121111 12121/11 12/21/11