ML11333A204

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

ML11333A204
Person / Time
Site:	Robinson
Issue date:	12/05/2011
From:	Mozafari B Plant Licensing Branch II
To:	Duncan R Carolina Power & Light Co
Brown, Eva, 415-2315
References
TAC ME6476
Download: ML11333A204 (4)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555*0001 December 5, 2011 Mr. Robert J. Duncan II, Vice President Carolina Power & Light Company H. B. Robinson Steam Electric Plant Unit No.2 3581 West Entrance Road Hartsville, South Carolina 29550

SUBJECT:

H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT 2 - REQUEST FOR ADDITIONAL INFORMATION REGARDING 60-DAY RESPONSE TO BULLETIN 2011-01, "MITIGATING STRATEGIES" (TAC NO. ME6476)

Dear Mr. Duncan:

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 a large explosion or fire were compliant with Title 10 of the Code of Federal Regulations (10 CFR) 50.54(hh)(2). The bulletin requested information on licensee 10 CFR 50.54(hh)(2) mitigating strategies in light of the recent events at Japan's Fukushima Dai-ichi 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 50.54(f). The first responses were due 30 days after issuance of the bulletin (June 10, 2011). By letter dated June 10, 2011 (ADAMS Accession No. ML11165A094), Progress Energy provided a response to the first set of questions for H. B. Robinson Steam Electric Plant. The second responses were due 60 days after issuance of the bulletin (July 11, 2011). By letter dated July 11, 2011 (ADAMS Accession No. ML11195A210), Progress Energy responded to this second set of questions.

The NRC staff has reviewed the submitted information and determined that additional information is needed regarding the 60-day response to the bulletin. As discussed with Mr. Richard Rogalski on November 29,2011, it was agreed that a response would be provided within 45 days of the issuance of this letter.

R Duncan -2 Should you have any questions regarding this letter, please feel free to contact me at (301) 415-2020.

Sincerely, IRA by EBrown forI Brenda Mozafari, Senior Project Manager Plant Licensing Branch 11-2 Division of Operating Reactor licenSing Office of Nuclear Reactor Regulation Docket No. 50-261 cc: Distribution via Listserv

Enclosure:

Request for Additional Information

REQUEST FOR ADDITIONAL INFORMATION NRC BULLETIN 2011-01, "MITIGATING STRATEGIES" H.B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO.2 PROGRESS ENERGY DOCKET NO. 50-261

1. 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. Describe in detail how H.B. Robinson Steam Electric Plant (Robinson) ensures 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.

2. The bulletin requested that each licensee describe in detail the controls for ensuring equipment supporting the mitigating strategies will be available when needed. The NRC safety evaluation documenting the review of your response to Section B.5.b of the Interim Compensatory Measures Order (EA-02-026) states that portable nitrogen gas bottles and regulators are used to manually depressurize the steam generators. Describe how Robinson ensures the availability of portable nitrogen gas bottles and regulators used to manually depressurize the steam generators.

Enclosure

• .. ML11333A204 NRR-106 OFFICE LPLlI-2\PM LPLlI-2\LA PGCB\BC LPLlI-2\BC NAME BMozafari CSoia SRosenberg DBroaddus (EBrown for)

DATE 11/30/11 11/29/11 11/30/11 12/5/11