ML101250558
| ML101250558 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 05/05/2010 |
| From: | Chamberlain D NRC/RGN-IV/DRP |
| To: | Matthew Sunseri Wolf Creek |
| References | |
| Download: ML101250558 (4) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION R E GI ON I V 612 EAST LAMAR BLVD, SUITE 400 ARLINGTON, TEXAS 76011-4125 May 5, 2010 Matthew W. Sunseri, President and Chief Executive Officer Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839
SUBJECT:
ASSESSMENT FOLLOWUP LETTER - WOLF CREEK GENERATING STATION
Dear Mr. Sunseri:
On May 3, 2010, the NRC staff completed a quarterly review of Wolf Creek Generating Station.
The assessment evaluated the performance indicators and inspection results for the first quarter of calendar year 2010. The purpose of this letter is to inform you of your safety performance during this period and our plans for future inspections at your facility. This letter supplements, but does not supersede, our annual assessment letter issued on March 3, 2010.
Overall, Wolf Creek operated in a manner that preserved the publics health and safety and fully met the cornerstone objectives. Our review identified that you have crossed the threshold from Green to White for both the Unplanned Scrams per 7000 Critical Hours performance indicator and the Safety System Functional Failures performance indicator. On March 8, 2010, during a plant start up at approximately 42 percent power, operators manually tripped the reactor following an unplanned trip of the only running feedwater pump. This plant startup was being conducted following a previous reactor trip on March 2, 2010, in which loss of power to an electrical inverter led to a trip of main feedwater Pump A and resultant low steam generator water levels. These reactor trips combined with two others from April 2009 and August 2009 have caused the Unplanned Scrams per 7000 Critical Hours performance indicator to be White.
Additionally, in April 2010 you reported four safety system functional failures for the first calendar quarter of 2010. Combined with the five others previously reported, these functional failures have caused the Safety System Functional Failures performance indicator also to be White.
As a result, we have assessed Wolf Creek Generating Station performance to be in the Regulatory Response column of the NRCs Action Matrix. Therefore we plan to conduct a supplemental inspection using Inspection Procedure 95001, Inspection for One or Two White Inputs In a Strategic Performance Area, during the current assessment cycle. This inspection procedure is conducted to provide assurance that the root causes and contributing causes of risk significant performance issues are understood, the extent of condition is identified, and the corrective actions are sufficient to prevent recurrence.
In accordance with 10 CFR 2.390 of the NRCs Rules of Practice, a copy of this letter will be made available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of the NRCs document system (ADAMS).
Wolf Creek Nuclear Operating Corp.
ADAMS is accessible from the NRC web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Please contact Geoffrey Miller at 817-860-8141 with any questions you may have regarding this letter.
Sincerely,
/RA/
Dwight D. Chamberlain, Director Division of Reactor Projects Docket: 50-482 License: NPF-42 cc:
Vice President Operations Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 Jay Silberg, Esq.
Pillsbury Winthrop Shaw Pittman LLP 2300 N Street, NW Washington, DC 20037 Supervisor Licensing Wolf Creek Nuclear Operating Corporation P.O. Box 411 Burlington, KS 66839 Chief Engineer Utilities Division Kansas Corporation Commission 1500 SW Arrowhead Road Topeka, KS 66604-4027 Office of the Governor State of Kansas Topeka, KS 66612-1590 Attorney General 120 S.W. 10th Avenue, 2nd Floor Topeka, KS 66612-1597 Chairman Coffey County Courthouse 110 South 6th Street Burlington, KS 66839
Wolf Creek Nuclear Operating Corp.
Chief, Radiation and Asbestos Control Section Bureau of Air and Radiation Kansas Department of Health and Environment 1000 SW Jackson, Suite 310 Topeka, KS 66612-1366 Chief, Technological Hazards Branch FEMA, Region VII 9221 Ward Parkway Suite 300 Kansas City, MO 64114-3372
Wolf Creek Nuclear Operating Corp.
Electronic distribution by RIV:
Regional Administrator (Elmo.Collins@nrc.gov)
Deputy Regional Administrator (Chuck.Casto@nrc.gov)
Acting Deputy Regional Administrator (Art.Howell@nrc.gov)
DRP Director (Dwight.Chamberlain@nrc.gov)
DRP Deputy Director (Anton.Vegel@nrc.gov)
DRS Director (Roy.Caniano@nrc.gov)
DRS Deputy Director (Troy.Pruett@nrc.gov)
Senior Resident Inspector (Chris.Long@nrc.gov)
Resident Inspector (Charles.Peabody@nrc.gov)
WC Administrative Assistant (Shirley.Allen@nrc.gov)
Branch Chief, DRP/B (Geoffrey.Miller@nrc.gov)
Senior Project Engineer, DRP/B (Rick.Deese@nrc.gov)
Public Affairs Officer (Victor.Dricks@nrc.gov)
Public Affairs Officer (Lara.Uselding@nrc.gov)
Project Manager (Balwant.Singal@nrc.gov)
Branch Chief, DRS/TSB (Michael.Hay@nrc.gov)
RITS Coordinator (Marisa.Herrera@nrc.gov)
Regional Counsel (Karla.Fuller@nrc.gov)
Congressional Affairs Officer (Jenny.Weil@nrc.gov)
OEMail Resource ROPreports DRS/TSB STA (Dale.Powers@nrc.gov)
OEDO RIV Coordinator (Leigh.Trocine@nrc.gov)
R:\\_REACTORS\\WC\\WC 2010 ASSESSMENT FOLLOWUP LETTER.DOC ADAMS: No 5 Yes 5 SUNSI Review Complete Reviewer Initials: GM 5 Publicly Available 5 Non-Sensitive
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5/4/10 5/4/10 5/5 /10 OFFICIAL RECORD COPY T=Telephone E=E-mail F=Fax