ML20149H194

Responds to Indicating Concern Re Application of Set of Interrelated Elements That Defines Technical & Regulatory Aspects of design-basic Accident Source Term for Licensing of Passive Plants

ML20149H194
Person / Time
Site:	05200002, 05200003
Issue date:	11/14/1994
From:	Crutchfield D Office of Nuclear Reactor Regulation
To:	Mcdonald R ELECTRIC POWER RESEARCH INSTITUTE
References
NUDOCS 9411180204
Download: ML20149H194 (2)

Text

,

November 14, 1994 Mr. R. Patrick Mcdonald Chairman, ALWR Utility Steering Committee Electric Power Research Institute P.O. Box 10412 Palo Alto, California 94303

Dear Mr. Mcdonald:

I am responding to your letter of October 25, 1994, to Mr. Russell in which you indicated concern regarding the application of the set of interrelated elements that defines the technical and regulatory aspects of the design-basis accident source term for licensing of the passive plants. Although we agree that some questions remain on the application of the revised source term, we have concluded that these questions will be resolved in the most appropriate and efficient way during the design-specific reviews of the passive plants.

The further application of the revised source term is reactor type and design specific and, therefore, will be most effectively addressed on a design-specific basis during the review of each passive light-water reactor design.

This approach was demonstrated to be both effective and timely in the applica-tion of revised source term information during the System 80+ review. We are confident that it will be successful for both the AP600 and simplified boiling-water reactor reviews.

Finally, you may still feel that su]stantial issues relating to the applica-tion of the revised source term for passive plant designs could be addressed generically. The staff's view is that in this situation, generic activities are more difficult to review than design-specific activities. For example, issues of source term attenuation (e.g., plate-out, hold-up, etc.) are very design and seg n :e specific. A generic review would be administratively handled as a topical report and subject to fee recovery. Such a review would not supplant existing staff priorities to complete design certification reviews currently in progress and would be prioritized with other review work.

Sincerely, 9411100204 941114 Dennis M. Crutchfield, Associate Director PDR TOPRP EXIEPRI for Advanced Reactors and License Renewal C PDR Office of Nuclear Reactor Regulation cc: See next page Distribution:

Docket File JMTaylor, NRR WTRussell, NRR ESBeckjord, RES DCrutchfield, NRR WTravers, NRR MJCase, NRR RBorchardt, NRR RArchitzel, NRR PMagnanelli, DAR59 1,Thadani, NRR RLSpessard, NRR CLMiller, NRR REmch, NRR JYlee, NRR GMHolahan, NRR ADAR R/F PDST R/F BSweeney, DAR59 JNWilson, NRR JHWilson, NRR SCGreen, DAR59 FJMiraglia, NRR RPZimmerman, NRR NRR Mailroom PDR YT0940242 *see previous concurrence OFC TA:ADAR* 1ECH ED* LA:PDST* SC:PDST* PD:PDST*

NAME M) Case:bs ' 7 f) (MMqjac PMagnanelli RArchltrel RBorchardt DATE 11/01/94 10/31/94 11/01/94 11/01/94 11/01/94 0FC PD :TE RB* AD@h ,/ '

WAME CLMiller DC e DATE 11/03/94 11/lff94 l OfflCIAL RECORD COPY DOCUMENI hAME: MCDON. * ' ,

EPRI Project No. 669 cc: Mr. John Trotter Nuclear Power Division Electric Power Research Institute Post Office Box 10412 Palo Alto, California 94303 Mr. Brian A. McIntyre, Manager Advanced Plant Safety & Licensing Westinghouse Electric Corporation Energy Systems Business Unit Post Office Box 355 Pittsburgh, Pennsylvania 15230 Mr. Joseph Quirk GE Nuclear Energy Mail Code 782 General Electric Company 175 Curtner Avenue San Jose, California 95125 Mr. Stanley R. Ritterbusch Standard Plant Licensing ABB-Combustion Engineering, Inc.

1000 Prospect Hill Road Post Office Box 500 Windsor, Connecticut 06095 Mr. Sterling Franks U.S. Department of Energy NE-42 Washington, D.C. 20585 Mr. Steve Goldberg Budget Examiner 725 17th Street, N.W.

Room 8002 Washington, D.C. 20503