ML113220291
| ML113220291 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 11/30/2011 |
| From: | Hall J Plant Licensing Branch IV |
| To: | Matthew Sunseri Wolf Creek |
| Hall,JR NRR/DORL/LPL4 301-415-4032 | |
| References | |
| TAC ME6501 | |
| Download: ML113220291 (5) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 November 30, 2011 Mr. Matthew W. Sunseri President and Chief Executive Officer Wolf Creek Nuclear Operating Corporation Post Office Box 411 Burlington, KS 66839
SUBJECT:
WOLF CREEK GENERATING STATION - REQUEST FOR ADDITIONAL INFORMATION REGARDING 60-DAY RESPONSE TO NRC BULLETIN 2011-01, "MITIGATING STRATEGIES" (TAC NOS. ME6S01)
Dear Mr. Sunseri:
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 requested information on licensees' 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 efforts are needed to ensure compliance with current requirements, (2) whether enhancement to the existing regulations and guidance are necessary, and/or (3) to determine if 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. By letter dated June 9, 2011 (ADAMS Accession No. ML11166A094), Wolf Creek Nuclear Operating Corporation (the licensee), provided a response to the first set of questions for Wolf Creek Generating Station (WCGS). The second response was due 60 days after issuance of the bulletin. By letter dated July 11,2011 (ADAMS Accession No. ML11200A130), the licensee responded to this second set of questions. Portions of the letter dated July 11, 2011, contain sensitive unclassified non safeguards information and, accordingly, have been withheld from public disclosure.
The NRC staff has reviewed the information provided in your letters dated June 9 and July 11, 2011, and determined that additional information is needed for the NRC staff to complete its review of your 60-day response to the bulletin. Please respond to this request for additional information within 4S days of the date of this letter.
M. Sunseri
- 2 If you have any questions, please contact me at 301-415-4032 or via e-mail at randy.hall@nrc.gov.
Sincerely,
~~} f~.7iJf Jam'~. Hall, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor licensing Office of Nuclear Reactor Regulation Docket No. 50-482 Enclosure As stated cc w/encl: Distribution via Listserv
REQUEST FOR ADDITIONAL INFORMATION NRC BULLETIN 2011-01, "MITIGATING STRATEGIES" WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION DOCKET NO. 50-482 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 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 9, 2011 (ADAMS Accession No. ML11166A094), Wolf Creek Nuclear Operating Corporation (the licensee), provided a response to the first set of questions for Wolf Creek Generating Station.
The second response was due 60 days after issuance of the bulletin. By letter dated July 11, 2011 (ADAMS Accession No. ML11200A130), the licensee responded to this second set of questions. Portions of the letter dated July 11, 2011, contain sensitive unclassified non safeguards information and, accordingly, have been withheld from public disclosure.
The NRC staff has reviewed the information provided in the licensee's letters dated June 9 and July 11, 2011, and determined that additional information is needed for the NRC staff to complete its review of the 60-day response to the bulletin.
- 1.
Please 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.
- 2.
Please describe in detail how the licensee ensures there is sufficient fuel for the pumping source when needed.
The bulletin requested that each licensee describe in detail the maintenance of equipment supporting the mitigating strategies to ensure that it will be functional when needed.
Enclosure
-2
- 3.
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 tools and instruments needed to support the mitigating strategies.
The bulletin requested that each licensee describe in detail the controls for ensuring equipment supporting the mitigating strategies will be available when needed. Tools and instruments are generally needed to implement the mitigating strategies, but these items were not clearly included in the licensee's response to the bulletin.
- 4.
Please describe in detail the semiannual maintenance activities for the B.S.b portable pump.
The bulletin requested that each licensee describe in detail the maintenance of equipment supporting the mitigating strategies to ensure that it will be functional when needed. The NRC determined that the description of the semiannual maintenance performed on the B.S.b portable pump is not detailed since it only states that "general maintenance activities" are performed. The NRC staff notes that the licensee's response states a condition report was generated to consider clarifying this maintenance.
M. Sunseri
- 2 If you have any questions, please contact me at 301-415-4032 or via e-mail at randy.hall@nrc.gov.
Docket No. 50-482 Enclosure As stated cc w/encl: Distribution via Listserv DISTRIBUTION:
PUBLIC LPLIV Reading RidsAcrsAcnw_MailCTR Resource RidsNrrDorlDpr Resource RidsNrrDorlLpl4 Resource RidsNrrDprPgcb Resource RidsNrrLAJBurkhardt Resource RidsNrrPMWolfCreek Resource RidsOgcRp Resource RidsRgn4MailCenter Resource BPurnell, NRR/DPR/PGCB EBowman, NRRIDPR/PGCB ADAMS Accession No. M L 113220291 Sincerely, lRAJ James R. Hall, Senior Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation OFFICE NRRIDORLlLPL4/PM N RR/DORLlLPL4/LA NRRIDPR/PGCB/PM NAME RHall JBurkhardt BPurnell DATE 11/23/11 11/22/11 11/23/11 OFFICE NRRIDPR/PGCB/BC NRRlDORLlLPL4/BC N RRiDORLlLPL4/PM NAME SRosenberg MMarkley RHall DATE 11/23/11 11/30/11 11/30/11 OFFICIAL RECORD COpy