ML20129B435

Advises That TMI Action Plan Items II.K.3.30 Re Small Break LOCA Analysis & II.K.3.31 Re Plant Analysis Complete,Subj to Validation of CEFLASH-4AS Agreement W/Data from Semiscale Test S-UT-08

ML20129B435
Person / Time
Site:	Calvert Cliffs
Issue date:	06/28/1985
From:	Butcher E Office of Nuclear Reactor Regulation
To:	Lundvall A BALTIMORE GAS & ELECTRIC CO.
References
TASK-2.K.3.30, TASK-2.K.3.31, TASK-TM NUDOCS 8507150513
Download: ML20129B435 (2)

Text

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4 Docket Nos. 50-317 and 50-318 Mr. A. E. Lundvall, Jr.

,. " Vice President - Supply Baltimore Gas & Electric Company P. O. Box 1475 Baltimore, Maryland 21203 h

SUBJECT:

TMI ACTION PLAN ITEM II.K.3.30, SMALL BREAK LOCA ANALYSIS AND II.K.3.31, PLANT ANALYSIS By letter dated June 20, 1985, to Mr. R. W. Wells, Chairman, CE Owners Group (CE0G), the' NRC found the CE0G submittal, CEN-203, which justified continued acceptance of the CE small break LOCA model (CEFLASH-4AS) in meeting the requirements of TMI Action Item II.K.3.30 to be acceptable.

This acceptance, however, is pending a confirmatory benchmark analysis to demonstrate good agreement between CEFLASH-4AS and the data froin Semiscale test S-UT-08. By letter dated March 11, 1985, the CE0G committed to the performance of the validation and projected a December 1985 schedule for submittal of a report on this effort.

On June 28, 1985, BG&E also provided a letter referencing the CE0G March 11, 1985 letter and commitment to the validation of the CEFLASH-4AS agreement with the S-UT-08 test. Pending the successful validation of CEFLASH-4AS and based on our understanding that CEFLASH-4AS was used for the Calvert Cliffs Nuclear Power Plant, we find that you have met the requirements of THI Action Item II.K.3.30 and a plant specific analysis is not required for II.K.3.31. These items are therefore complete. Please advise this office within 30 days of receipt of this letter, or upon unsuccessful validation of the model, if for any reason our understanding is not correct and provide

-your plans and schedule for completing II.K.3.30 and II.K.3.31.

Sincerely, S

Edwar J. Butcher, Acting Chief Operating Reactors Branch No. 3 Division of Licensing cc: See next page

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s Mr. A. E. Lundvall, Jr.

Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant cc:

Mr. William T. Bowen, President Regional Administrator, Region I Calvert County Board of U.S. Nuclear Regulatory Commission Commissioners Office of Executive Director Prince Frederick, Maryland 20768 for Operations 631 Park Avenue D. A. Brune, Esq. King of Prussia, Pennyslvania 19406 General Counsel Baltimore Gas and Electric Company Mr. Charles B. Brinkman P. O. Box 1475 Nanager - Nuclear Operations Baltimore, Maryland 21203 Combustion Engineering, Inc.

7910 Woodmont Avenue George F. Trowbridge, Esq. 'Bethesda, Maryland 20814 Shaw, Pittman, Potts and Trowbridge 1800 M Street, NW Mr. J. A. Tiernan, Manager Washington, DC 20036 Nuclear Power Department Calvert Cliffs Nuclear Power Plant Mr. R. C. L. Olson, Principal Engineer Maryland Routes 2 and 4 Nuclear Licensing Analysis Unit Lusby, Maryland 20657 Baltimore Gas and Electric Company Room 922 - G&E Building Mr. R. E. Denton, General Supervisor P. 0. Box 1475 Training and Technical Services Bal timore. .Ma ryland 21203 Calvert Cliffs Nuclear Power Plant Maryland Routes 2 and 4 Lusby, Maryland 20657 Resident Reactor Inspector NRC Inspection and Enforcement Combustion Engineering, Inc.

P. O. Box 437 ATTN: Mr. R. R. Mills, Manager Lusby, Maryland 20657 Engineering Services P. O. Box 500 Mr. Leon B. Russell Windsor, Connecticut 06095 Plant Superintendent Calvert Cliffs Nuclear Power Plant Department of Natural Resources Maryland Routes 2 and 4 Energy Administration, Power Plant Lusby, Maryland 20657 Siting Program ATTN: Mr. T. Magette Bechtel Power Corporation Tawes State Office Building ATTN: Mr. J. C. Ventura Annapolis, Maryland 21204 Calvert Cliffs Pro,tect Engineer

.15740 Shady Grove Road Gaithersburg, Maryland 20877 Mr. R. M. Douglass, Manager Quality Assurance Department Baltimore Gas and Electric Company Fort Smallwood Road Complex P. O. Box 1475 Baltimore, Maryland 21203 E ~

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