ML113220222
| ML113220222 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 11/28/2011 |
| From: | Thomas Wengert Plant Licensing Branch III |
| To: | Schimmel M Northern States Power Co |
| Wengert T, NRR/DORL, 301-415-4037 | |
| References | |
| TAC ME6471, TAC ME6472, BL-11-001 | |
| Download: ML113220222 (4) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 November 28, 2011 Mr. Mark A. Schimmel Site Vice President Prairie Island Nuclear Generating Plant Northern States Power Company - Minnesota 1717 Wakonade Drive East Welch, MN 55089-9642 SUB"IECT:
PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNITS 1 AND 2 REQUEST FOR ADDITIONAL INFORMATION REGARDING 60-DAY RESPONSE TO BULLETIN 2011-01, "MITIGATING STRATEGIES" (TAC NOS. ME6471 AND ME6472)
Dear Mr. Schimmel:
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 NRC Bulletin 2011-01 (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) Section 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 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 50.54(f). The first responses were due 30 days after issuance of the bulletin (June 10, 2011). By letter dated June 9,2011 (ADAMS Accession No. ML111610510), you provided a response to the first set of questions for Prairie Island Nuclear Generating Plant, 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. ML111930159), 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.
M. A. Schimmel
-2 If you have any questions regarding this letter, please feel free to contact Thomas J. Wengert at (301) 415-4037.
Sincerely.
~~~tr+
Thomas J. Wengert. Sen~r Project Manager Plant licensing Branch LPLlII-1 Division of Operating Reactor licensing Office of Nuclear Reactor Regulation Docket Nos. 50-282 and 50-306 cc: Distribution via listserv
Enclosure:
Request for Additional Information
REQUEST FOR ADDITIONAL INFORMATION NRC BULLETIN 2011-01, "MITIGATING STRATEGIES" PRAIRIE ISLAND NUCLEAR GENERATING PLANT, UNITS 1 AND 2 DOCKET NOS. 50-282 AND 50-306
Background
Bulletin 2011-01, "Mitigating Strategies," requested that each licensee describe in detail the maintenance and testing on equipment procured to support the mitigating strategies to ensure that it will be functional when needed. In the context of the mitigating strategies, monitor nozzles, spray nozzles, and similar devices are commonly used for firefighting, spent fuel pool spray strategies, and as a means to reduce the magnitude of fission product releases. The Nuclear Regulatory Commission staff could not determine if you performed activities to ensure that these devices will be functional when needed.
Request for Additional Information Describe in detail the maintenance or testing of monitor nozzles, spray nozzles, or similar devices to ensure that they will be functional when needed.
Enclosure
ML113220222 LPL3-11 LA DPR/PGCB/BC NRRlLPL3-lIBC (A)
LPL3-11 PM OFFle NAME TWengert BTully SRosenberg BPurnell TBeitz TWengert DATE 11/21111 11/21/11 11/22/11 11/23/11 11/28/11 11/28/11