ML113210581

Duane Arnold Energy Center - Request for Additional Information Regarding 60-Day Response to Bulletin 2011-01, Mitigating Strategies.

ML113210581
Person / Time
Site:	Duane Arnold
Issue date:	11/28/2011
From:	Feintuch K D Plant Licensing Branch III
To:	Wells P NextEra Energy Duane Arnold
Feintuch K D, NRR/DORL/LPL3-1, 415-3079
References
TAC ME6429, BL-11-001
Download: ML113210581 (4)

Text

UNITED NUCLEAR REGULATORY WASHINGTON, D.C. 20555-0001 November 28, 2011 Mr. Peter Wells Vice President Duane Arnold Energy Center 3277 DAEC Road Palo, IA 52324-9785 SUBJECT: DUANE ARNOLD ENERGY CENTER -REQUEST FOR ADDITIONAL INFORMATION REGARDING 60-DAY RESPONSE TO BULLETIN 2011-01, "MITIGATING STRATEGIES" (TAC NO. ME6429) Dear Mr. Wells 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 111250360), 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 10, 2011 (ADAMS Accession No. ML 111610445), you provided a response to the first set of questions for Duane Arnold Energy Center. 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 111930033), 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.

P. Wells 2 If you have any questions regarding this letter, please feel free to contact Karl Feintuch at (301) 415-3079. Sincerely, kJJ5 ;d;;;t:;l Karl D. Feintuch, Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor licensing Office of Nuclear Reactor Regulation Docket No. 50-331 cc: Distribution via Listserv Enclosure: Request for Additional Information NRC Bulletin 2011-01, "Mitigating Request for Additional Duane Arnold Energy Describe in detail the maintenance or testing of monitor nozzles, spray nozzles, or similar devices to ensure that they will be functional when needed. The bulletin 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, these devices are commonly used for firefighting, spent fuel pool spray strategies, and as a means to reduce the magnitude of fission product releases. The NRC staff could not determine if you performed activities to ensure that these devices will be functional when needed. Enclosure P. Wells -2 If you have any questions regarding this letter, please feel free to contact Karl Feintuch at (301) 415-3079. Sincerely, IRA! Karl D. Feintuch, Project Manager Plant Licensing Branch 111-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-331 cc: Distribution via Listserv Enclosure: Request for Additional Information DISTRIBUTION: PUBLIC BPurnelf, NRR EBowman, NRR LPL3-1 R/F RidsNrrLABTully RidsNrrPMDuaneArnold Resource SRosenberg, NRR RidsNrrDorlLpl3-1 Resource RidsOgcRp Resource RidsNrrDorlDpr Resource RidsAcrsAcnw_MailCenter Resource RidsRgn3MailCenter Resource ADAMS Accession No.: ML 113210581 DPR/PGCB/PM NAME KFeintuch BTuli I OFFICE LPL3-1/PM LPL3-1/LA DATE 11/18/11 11/18/11 LPL3-1/PM KFeintuch 11/28/11