ML080230577

Request for Additional Information Related to Emergency Cooling System Performance Analysis

ML080230577
Person / Time
Site:	Waterford
Issue date:	01/21/2008
From:	Cook K S Entergy Nuclear South, Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
W3F1-2008-0005
Download: ML080230577 (5)

Text

'*"Entergy Entergy Nuclear South Entergy Operations, Inc.17265 River Road Killona, LA 70057-3093 Tel 504 739 6247 Fax 504 739 6698 kcook@entergy.com Kimberly S. Cook Director, Nuclear Safety Assurance Nuclear Safety Assurance Waterford 3 W3F1-2008-0005 January 21, 2008 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

REFERENCES:

Request For Additional Information Related for Emergency Cooling System Performance Analysis Waterford Steam Electric Station, Unit 3 Docket No. 50-382 1. Entergy letter to the NRC, "Emergency Core Cooling System Performance Analysis" dated August 9, 2007 (W3F1-2007-0038)

2. Entergy letter to the NRC, "Supplement to Amendment Request NPF-38-249, Extended Power Uprate" dated July 28, 2004 (W3F1-2004-0061)3. NRC Request for Additional Information Related to Emergency Core Cooling System Performance Analysis, dated December 14, 2007

Dear Sir or Madam:

By letter (Reference 1), Entergy Operations, Inc. (Entergy) requested an NRC review of the Waterford Steam Electric Station, Unit 3 (Waterford

3) revised Emergency Core Cooling System (ECCS) Performance Analysis that supports the implementation of CE 16x16 Next Generation Fuel (NGF) described in WCAP-16500.

A license amendment request was also submitted to address the Waterford 3 Technical Specification changes for NGF.By email (Reference 3), the Nuclear Regulatory Commission (NRC) staff Requested Additional Information (RAI) related to providing a statement that Entergy and its Loss of Coolant Accident (LOCA) analyses vendor have ongoing processes that assure Waterford 3 LOCA analyses input values bound as-operated Waterford 3 plant values for those parameters.

Our response to the RAI is contained in Attachment 1.A4DcZ W3F1-2008-0005 Page 2 This letter contains no commitments.

If you have any questions or require additional information, please contact Ron Williams at 504-739-6255."KSC/RLW/

Attachment:

Response to Request for Additional Information for Emergency Core Cooling System Performance Analysis W3F1-2008-0005 Page 3 cc: Mr. Elmo E. Collins, Jr.Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 NRC Senior Resident Inspector Waterford Steam Electric Station Unit 3 P.O. Box 822 Killona, LA 70066-0751 U. S. Nuclear Regulatory Commission Attn: Mr. N. Kalyanam Mail Stop O-07D1 Washington, DC 20555-0001 Wise, Carter, Child & Caraway ATTN: J. Smith P.O. Box 651 Jackson, MS 39205 Louisiana Department of Environmental Quality Office of Environmental Compliance Surveillance Division P. O. Box 4312 Baton Rouge, LA 70821-4312 American Nuclear Insurers Attn: Library Town Center Suite 300S 29th S. Main Street West Hartford, CT 06107-2445 Attachment 1 W3FI-2008-0005 Response to Request for Additional Information for Emergency Core Cooling System Performance Analysis

-I .Attachment 1 to W3F1-2008-0005 Page 1 of 1 Response to Request for Additional Information for Emergency Core Cooling System Performance Analysis Reference I -Entergy letter to the NRC "Emergency Core Cooling System Performance Analysis" dated August 9, 2007 (W3F1-2007-0038)

Reference 2 -Entergy letter to the NRC "Supplement to Amendment Request NPF-38-249, Extended Power Uprate" dated July 28, 2004 (W3FI-2004-0061)

RAI I -Please provide a statement that: Entergy and its SBLOCA and LBLOCA analyses vendor have ongoing processes that assure that the input values of Waterford Unit 3 LOCA analyses conservatively bound the values of those parameters for the as operated Waterford Unit 3 plant.Entergy Response: As previously stated in correspondence with the NRC regarding Waterford 3 Extended Power Uprate (Reference 2-response to question #5), Waterford 3 and its vendor, Westinghouse Electric Company LLC, continue to have ongoing processes, which assure that LOCA analysis input values bound the as-operated plant values for those parameters.