ML080140007

Report on Results of Staff Audit of Corrective Actions to Address GL 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design-Basis Accidents at PWRs

ML080140007
Person / Time
Site:	Waterford
Issue date:	01/28/2008
From:	Kalyanam N NRC/NRR/ADRO/DORL/LPLIV
To:	Walsh K Entergy Operations
Kalyanam N, NRR/DORL/LPL4, 415-1480
Shared Package
ML080140315	List: ML080140007
References
GL-04-002, TAC MC4729
Download: ML080140007 (4)

Text

January 28, 2008 Mr. Kevin T. Walsh Vice President of Operations Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093

SUBJECT:

WATERFORD STEAM ELECTRIC STATION, UNIT 3 - REPORT ON RESULTS OF STAFF AUDIT OF CORRECTIVE ACTIONS TO ADDRESS GENERIC LETTER 2004-02 (TAC NO. MC4729)

Dear Mr. Walsh:

Generic Letter (GL) 2004-02, "Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized-Water Reactors," requested that all pressurized-water reactor (PWR) licensees (1) evaluate the adequacy of the emergency sump recirculation function with respect to potentially adverse effects associated with post-accident debris, and (2) implement any plant modifications determined to be necessary. Entergy Operations, Inc.

(Entergy, the licensee), has conducted an evaluation of recirculation sump performance for Waterford Steam Electric Station, Unit 3 (Waterford Unit 3). In addition, Entergy has installed new sump strainers in Waterford 3.

Consistent with the discussion in the "Reasons for Information Request" section of GL 2004-02, the Nuclear Regulatory Commission (NRC) staff is using sample audits to help verify that licensees have resolved the concerns identified in the generic letter. The NRC staff has conducted a detailed audit of the new sump strainer design and associated analyses and testing for Waterford Unit 3.

The NRC staff is forwarding the Waterford 3 Generic Safety Issue (GSI)-191 audit report to Entergy. The enclosed audit report provides Entergy feedback on its GL 2004-02 corrective actions and supporting analyses. Also, when made publicly available, this audit report will serve as a vehicle to inform other PWR licensees of the NRC staffs technical positions on various aspects of GSI-191, PWR Sump Performance.

The NRC staff previously forwarded a draft of this audit report to Entergy. Entergy, after consultation with its contractors and vendors for GL 2004-02 corrective actions, assisted the staff in removing a small amount of information claimed by General Electric Hitachi Nuclear Energy to be proprietary. Therefore, the NRC staff believes that there is no proprietary information contained in the enclosed audit report.

K. Walsh Entergy was supportive during all phases of the audit. Consideration was given by Entergy in providing appropriate office space and facilitating the emergency core cooling system pump rooms tour taken by audit team members. Your primary point-of-contact during the preparation, conduct, and report-writing phases of the audit was helpful in accomplishing the audit.

The enclosed audit report does not reach a conclusion regarding overall adequacy of Entergys GL 2004-02 corrective actions for Waterford 3. The NRC staff expects that Entergys end-of-Calendar Year 2007 GL 2004-02 supplemental response, due by the end of February 2008, will respond to the open items in the enclosed audit report. This expectation has been stated in public meetings with licensees and at the audit exit meeting for the Waterford Unit 3 audit. It is reinforced in a GL 2004-02 supplemental response content guide that the NRC staff released in August 2007 and revised in November 2007. In 2008, NRC staff consideration of Entergys GL 2004-02 supplemental response (including its response to audit open items), due by February 29, 2008, will result in a letter to Entergy assessing the overall adequacy of the Waterford Unit 3 GL 2004-02 corrective actions.

The audit team did not evaluate whether Entergy has identified and/or submitted appropriate licensing documents for its GL 2004-02 corrective actions. The licensees maintenance of its licensing basis is within the scope of the Reactor Oversight Program. The audit team did not evaluate the completeness of the licensees implementation of GL 2004-02 corrective actions.

That is also within the scope of the Reactor Oversight Program under TI 2515/166, "Pressurized Water Reactor Containment Sump Blockage."

Sincerely,

/RA/

N. Kalyanam, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-382

Enclosure:

As stated cc w/o encl: See next page

Pkg ML08140315 (Letter ML080140007, Audit Report ML080140318)

(*) Editorial changes only in staff provided letter OFFICE NRR/LPL4/PM NRR/LPL4/LA DSS/SSIB NRR/LPL4/BC NAME NKalyanam JBurkhardt MScott (*)* THiltz, MCT for DATE 1/28/08 1/14/08 1/10/08 1/28/08 Waterford Steam Electric Station, Unit 3 (November 2007) cc w/o encl:

Senior Vice President Manager, Licensing Entergy Nuclear Operations Entergy Operations, Inc.

P.O. Box 31995 17265 River Road Jackson, MS 39286-1995 Killona, LA 70057-3093 Senior Vice President and COO Mr. Timothy Pflieger Entergy Operations, Inc. Environmental Scientist - Supervisor P.O. Box 31995 REP&R-CAP-SPOC Jackson, MS 39286-1995 Louisiana Department of Environmental Quality Vice President, Operations Support P.O. Box 4312 Entergy Services, Inc. Baton Rouge, LA 70821-4312 P.O. Box 31995 Jackson, MS 39286-1995 Parish President Council St. Charles Parish Site Vice President P.O. Box 302 Waterford Steam Electric Station, Unit 3 Hahnville, LA 70057 Entergy Operations, Inc.

17265 River Road Chairman Killona, LA 70057-3093 Louisiana Public Services Commission P.O. Box 91154 General Manager, Plant Operations Baton Rouge, LA 70825-1697 Waterford Steam Electric Station, Unit 3 Entergy Operations, Inc. Mr. Richard Penrod, Senior Environmental 17265 River Road Scientist/State Liaison Officer Killona, LA 70057-3093 Office of Environmental Services Northwestern State University Director, Nuclear Safety & Licensing Russell Hall, Room 201 Entergy Services, Inc. Natchitoches, LA 71497 440 Hamilton Avenue White Plains, NY 10601 Resident Inspector Waterford NPS Director, Nuclear Safety Assurance P.O. Box 822 Entergy Operations, Inc. Killona, LA 70057-0751 17265 River Road Killona, LA 70057-3093 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Senior Manager, Nuclear Safety 611 Ryan Plaza Drive, Suite 400

& Licensing Arlington, TX 76011 Entergy Services, Inc.

P.O. Box 31995 Jackson, MS 39286-1995