W3F1-2012-0081, Annual Report on Westinghouse Electric Company LLC Combustion Engineering Emergency Core Cooling System Performance Evaluation Models for Calendar Year 2011

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Annual Report on Westinghouse Electric Company LLC Combustion Engineering Emergency Core Cooling System Performance Evaluation Models for Calendar Year 2011
ML12270A132
Person / Time
Site: Waterford Entergy icon.png
Issue date: 09/25/2012
From: Mason M
Entergy Operations
To:
Office of Nuclear Reactor Regulation, Document Control Desk
References
W3F1-2012-0081
Download: ML12270A132 (2)
v • d • e


Text

Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093 Tel 504-739-6673 Fax 504-739-6698 mmason@entergy.com Michael E. Mason Licensing Manager (acting)

Waterford 3 W3F1-2012-0081 September 25, 2012 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

Subject:

Annual Report on Westinghouse Electric Company LLC Combustion Engineering Emergency Core Cooling System Performance Evaluation Models for Calendar Year 2011 Waterford Steam Electric Station Unit 3 Docket No. 50-382 License No. NPF-38

Dear Sir or Madam:

This letter provides the Waterford Steam Electric Station Unit 3 (Waterford 3) 10CFR50.46(a)(3)(ii) reporting information pertaining to the Westinghouse Electric Company Emergency Core Cooling System (ECCS) performance Evaluation Models (EMs) for calendar year 2011.

There were no changes, error corrections, or enhancements to the 1999 Evaluation Model (EM) which is used in the Large Break Loss-of-Coolant Accident (LBLOCA)

ECCS performance analysis. In addition, there were no changes, error corrections, or enhancements to the Supplement 2 Evaluation Model (S2M) which is the EM used in the Small Break Loss-of-Coolant Accident (SBLOCA) ECCS performance analysis.

This letter contains no new commitments. If you have any questions or require additional information, please contact Michael Mason at 504-739-6673.

Sincerely, MEM/RJP

W3F1-2012-0081 Page 2 cc: Mr. Elmo E. Collins, Jr. RidsRgn4MailCenter@nrc.gov Regional Administrator U. S. NRC Region IV Mr. N. Kalyanam Kaly.Kalyanam@nrc.gov Project Manager, Waterford 3 U. S. NRC NRC Senior Resident Inspector Marlone.Davis@nrc.gov Waterford 3 Dean.Overland@nrc.gov

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