ML12319A669
| ML12319A669 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 11/14/2012 |
| From: | Eric Duncan Region 3 Branch 3 |
| To: | Pacilio M Exelon Generation Co, Exelon Nuclear |
| References | |
| Download: ML12319A669 (5) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION REGION III 2443 WARRENVILLE ROAD, SUITE 210 LISLE, IL 60532-4352 November 14, 2012 Mr. Michael J. Pacilio Senior Vice President, Exelon Generation Co., LLC President and Chief Nuclear Officer, Exelon Nuclear 4300 Winfield Road Warrenville, IL 60555
SUBJECT:
BRAIDWOOD STATION, UNIT 2 - NOTIFICATION OF NRC SUPPLEMENTAL INSPECTION AND INFORMATION REQUEST
Dear Mr. Pacilio:
By letter dated August 6, 2012, the Nuclear Regulatory Commission (NRC) communicated to you our updated assessment of Braidwood Station Unit 2. Based on our quarterly review of plant performance, we identified that the Mitigating Systems Performance Index (MSPI) for the Cooling Water Systems (CWS) for Unit 2 had crossed the Green-to-White threshold. This was due to probabilistic risk assessment model change errors, operating restrictions on the cooling water support system, and equipment failures. As a result, Braidwood Station Unit 2 transitioned to the Regulatory Response Column of the Reactor Oversight Process Action Matrix beginning in the second quarter of 2012.
By letter dated October 30, 2012, we were notified by your staff that you were ready for the NRC to conduct our supplemental inspection to review the actions taken to address the White performance indicator. Accordingly, we plan to conduct a supplemental inspection, beginning on November 26, 2012, at Braidwood Station, Unit 2, using Inspection Procedure 95001, Supplemental Inspection for One or Two White Inputs in a Strategic Performance Area. This onsite inspection is scheduled to be performed from November 26 through November 30, 2012.
In order to minimize the impact to your on-site resources and to ensure a productive inspection for both organizations, we have enclosed a request for documents needed for this inspection.
The documents identified are those that the inspector will need prior to and upon arrival at the site. It is important that all of these documents are up-to-date and complete in order to minimize the number of additional documents requested during the onsite portion of the inspection.
We have discussed the schedule for these inspection activities with your staff and understand that our regulatory contact for this inspection will be Mr. Murtaza Abbas of your organization. If there are any questions about this inspection or the material requested, please contact the inspector, Mr. David Passehl, at (630) 829-9872.
This letter does not contain new or amended information collection requirements subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection requirements were approved by the Office of Management and Budget, Control Number 3150-0011. The NRC may not conduct or sponsor, and a person is not required to respond to a request for information or an information collection requirement unless the requesting document displays a currently valid Office of Management and Budget control number.
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its enclosure will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records System (PARS) component of NRC's Agencywide Documents Access and Management System (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Eric R. Duncan, Chief Branch 3 Division of Reactor Projects Docket No. 50-457 License No. NPF-77
Enclosure:
Supplemental Inspection Document Request cc w/encl:
Distribution via ListServ TM
1 Enclosure SUPPLEMENTAL INSPECTION DOCUMENT REQUEST Please assemble the following documents by November 20, 2012. Preferably these documents should be sent to the inspector, David Passehl, on CD-ROM. The information sent should be current as of the date of your mailing. Information provided onsite should be the latest approved documentation. The information should be mailed in such a manner as to reach the following location by November 20, 2012. Proprietary information should be clearly marked and stored on a separate CD-ROM. Draft documentation should not be provided as part of this information request.
U.S. Nuclear Regulatory Commission Attn: David Passehl 2443 Warrenville Road, Suite 210 Lisle, IL 63532-4352 Information Requested Prior to Inspection:
Procedures:
Procedure(s) governing collecting and reporting of MSPI data Procedure(s) governing site PRA model control and revisions Procedure(s) governing MSPI Margin Management Procedure(s) governing the identification and resolution of problems Procedure(s) governing root cause and apparent cause evaluations Procedure(s) governing common cause assessments, effectiveness reviews, and self-assessments Reports:
The root cause investigation report(s) for the CWS MSPI issue Any self-assessments performed regarding the CWS MSPI issue A list and description of any corrective actions taken or planned for the CWS MSPI issue Documentation supporting completion of any corrective actions for the CWS MSPI issue Current schedule and resource commitment documents for open corrective actions for the CWS MSPI issue Other:
MSPI Basis Document Site-specific MSPI Training and Reference Material Also, please have the following documents available for the inspector upon his arrival on site:
Updated Final Safety Analysis Report Technical Specifications Administrative Procedures Site Organization Charts Drawings Any previously provided documents that have been revised
This letter does not contain new or amended information collection requirements subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et seq.). Existing information collection requirements were approved by the Office of Management and Budget, Control Number 3150-0011. The NRC may not conduct or sponsor, and a person is not required to respond to a request for information or an information collection requirement unless the requesting document displays a currently valid Office of Management and Budget control number.
In accordance with 10 CFR 2.390 of the NRC's "Rules of Practice," a copy of this letter and its enclosure will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records System (PARS) component of NRC's Agencywide Documents Access and Management System (ADAMS), accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).
Sincerely,
/RA/
Eric R. Duncan, Chief Branch 3 Division of Reactor Projects Docket No. 50-457 License No. NPF-77
Enclosure:
Supplemental Inspection Document Request cc w/encl:
Distribution via ListServ TM DISTRIUBITON:
See next page DOCUMENT NAME: Braidwood 2012 95001 Notification Letter.docx Publicly Available Non-Publicly Available Sensitive Non-Sensitive To receive a copy of this document, indicate in the concurrence box "C" = Copy without attach/encl "E" =
Copy with attach/encl "N" = No copy OFFICE RIII RIII RIII RIII NAME RNg:rj EDuncan DATE 11/14 /12 11/14/12 OFFICIAL RECORD COPY
Letter to M. Pacilio from E. Duncan dated November 14, 2012
SUBJECT:
BRAIDWOOD STATION, UNIT 2 - NOTIFICATION OF NRC SUPPLEMENTAL INSPECTION AND INFORMATION REQUEST DISTRIBUTION:
Cayetano Santos RidsNrrDorlLpl3-2 Resource RidsNrrPMBraidwood Resource RidsNrrDirsIrib Resource Chuck Casto Cynthia Pederson Steven Orth Jared Heck Allan Barker DRPIII DRSIII Christine Lipa Carole Ariano Linda Linn Tammy Tomczak ROPassessment.Resource@nrc.gov