ML093020034

Assessment Follow-up Letter - Oyster Creek Nuclear Generating Station

ML093020034
Person / Time
Site:	Oyster Creek
Issue date:	10/28/2009
From:	Clifford J Division Reactor Projects I
To:	Pardee C Exelon Generation Co, Exelon Nuclear
BELLAMY, RR
References
Download: ML093020034 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION I 475 ALLENDALE ROAD KING OF PRUSSIA, PA 19406-1415 October 28,2009 Mr. Charles G. Pardee Senior Vice President, Exelon Generation Company, LLC President and Chief Nuclear Officer, Exelon Nuclear 4300 Winfield Rd.

Warrenville, IL 60555

SUBJECT:

ASSESSMENT FOLLOW-UP LETTER - OYSTER CREEK NUCLEAR GENERATING STATION

Dear Mr. Pardee:

On October 26, 2009, the NRC staff completed, as part of our quarterly review, an update of our assessment of Oyster Creek Nuclear Generating Station {Oyster Creek}. The assessment evaluated performance indicators (Pis) and inspection results. The purpose of this letter is to inform you of your safety performance during this period and our plans for a future inspection at your facility. This letter supplements, but does not supersede, our mid-cycle assessment letter issued on September 1, 2009 (ML092440157).

Our review of Oyster Creek performance identified that you crossed the threshold from Green to White for the "Unplanned Scrams per 7000 Critical Hours" performance indicator.

This threshold was crossed due to the most recent unplanned automatic reactor scram that occurred on July 12, 2009.

As a result, we have assessed Oyster Creek performance to be in the Regulatory Response Column of the NRC's Action Matrix. This indicates that all cornerstone objectives are met with minimal reduction in safety margin. Consistent with the graded approach in the NRC's Reactor Oversight Process, this change in performance from the Licensee Response column to the Regulatory Response column results in a corresponding increase in the NRC's inspection and assessment oversight at Oyster Creek. Therefore, we plan to schedule and perform a supplemental inspection using Inspection Procedure 95001, "Inspection for One or Two White Inputs in a Strategic Performance Area," when your staff has notified us of your readiness for this inspection. 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.

C. Pardee 2 In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its enclosure will be made available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html(the Public Electronic Reading Room).

Please contact Dr. Ronald Bellamy at 610-337-5200 with any questions you may have regarding this letter.

Sincerely, IRA!

James W. Clifford, Acting Director Division of Reactor Projects Region I Docket Nos.: 50-219 License Nos: DPR-16 cc: Distribution via ListServ

C. Pardee 3 In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its enclosure will be made available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's document system (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html(the Public Electronic Reading Room).

Please contact Dr. Ronald Bellamy at 610-337-5200 with any questions you may have regarding this letter.

Sincerely, IRA!

James W. Clifford, Acting Director Division of Reactor Projects Distribution w/encl:

S. Collins, RA M. Dapas, ORA J. Clifford, DRP M. Gray, DRP R. Bellamy, DRP S. Barber, DRP C. Newport, DRP J. Greives, DRP L. Trocine, RI OEDO M. Kowal, NRR E. Miller, PM, NRR R. Guzman, NRR J. Kulp, DRP, SRI J. DeVries, DRP, OA ROPreportsResources@nrc.gov SUNSI Review Complete: RRB (Reviewer's Initials) ML093020034 DOCUMENT NAME: G:\DRP\BRANCH6\ROP Assessment Folders\ROP 10\0yster Creek\Foliow-Up\OC ROP10 Follow-Up Ltr.Ooc After declaring this document "An Official Agency Record" it will be released to the Public.

To receive a copy of this document, indicate in the box: "CO =Copy without attachment/enclosure "E" =Copy with attachment/enclosure "N' =No copy

OFFICE RIIORP I RIIDRP I I NAME RBeliamyl RRB JCliffordl JWC

!OATE 10/27/09 10/28 109 OFFICIAL RECORD COPY