ML20215M353

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Forwards Safety Evaluation Supporting Util Use of Suppl 1 to MSS-NA1-P Re Reactor Physics Methods.Physics Methods & Reliability Factors Appropriate for Facility.Periodic Reevaluations of Model Validity Should Be Performed
ML20215M353
Person / Time
Site: Waterford Entergy icon.png
Issue date: 05/06/1987
From: Joshua Wilson
Office of Nuclear Reactor Regulation
To: Dewease J
LOUISIANA POWER & LIGHT CO.
Shared Package
ML20215M354 List:
References
TAC-65141, NUDOCS 8705130200
Download: ML20215M353 (2)


Text

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3 May 6, 1987 Docket No. 50-382 Mr. J. G. Dewease Senior Vice President - Nuclear Operations Louisiana Power and-Light Company 317 Baronne Street, Mail Unit 17 New Orleans,. Lousiana - 70160

Dear Mr. Dewease:

SUBJECT:

REACTOR PHYSICS METHODS TOPICAL REPORT MSS-NAl-P (TAC NO. 65141)

By letter dated March 20, 1987 Louisiana Power and Light Company submitted topical report MSS-NAl-P, Supplement 1. The staff has reviewed this report and concludes that the physics methods and reliability factors previously approved for Arkansas Nuclear One, Units 1 and 2 are also appropriate for application to Waterford 3. However, because of the somewhat limited data base used, the staff recommends that Middle South Services perform periodic reevaluations of the model validity as new data becomes available to provide continuous assurance of its applicability.

Details of the staff's review are contained in the enclosed safety evalua-tion.

If you have any questions concerning the staff's review, please contact me at (301) 492-9403.

I Sl James H. Wilson, Project Manager ProjectDirectorate-IV Division of Reactor Projects - III, IV,VandSpecialProjects

Enclosure:

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Mr. Jerrold G. Dewease Waterford 3 Louisiana Power & Light Company cc:

W. Malcolm Stevenson, Esq. Regional Administrator, Region IV Monroe & Leman U.S. Nuclear Regulatory Commission-1432 Whitney Building Office of Executive Director for New Orleans, Louisiana 70103 Operations 611 Ryan Plaza Drive, Suite 1000 Mr. E. Blake Arlington, Texas 76011 Shaw,<Pittman, Potts & Trowbridge 2300 N Street, NW Carole H. Burnstein, Esq.

Washington, D.C. 20037 445 Walnut Street New Orleans, Louisiana 70118 Mr. Gary L. Groesch Post Office Box 791169' - Mr. Charles B. Brinkman, Manager New Orleans, Louisiana 70179-1169 Washington Nuclear Operations Combustion Engineering, Inc.

Mr. F. J. Drummond 7910 Woodmont Avenue, Suite 1310 ProjectManager-Nuclear Bethesda, Maryland 10814 Louisiana Power & Light Company 317 Baronne Street Mr. William H. Spell, Administrator New Orleans, Louisiana 70160 Nuclear Energy Division Office of Environmental Affairs Mr. K. W. Cook Post Office Box 14690 Nuclear Support and Licensing Manager Baton Rouge, Louisiana 70898 Louisiana Power & Light Company 317 Baronne Street President, Policy Jury New Orleans, Louisiana 70160 St. Charles Parris

'Mahnville, Louisiana 70057 Resident Inspector /Waterford NPS Post Office Box 822 Killona, Louisiana 70066 Mr. Ralph T. Lally Manager of Quality Assurance Middle South Servies, Inc.

Post Office Box 61000 New Orleans, Louisiana 70161 Chairman Louisiana Public Service Commission One American Place Suite-1630 BatonRouge,Louislana 70825-1697


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