ML20207L237

Informs That Proposed Method to Resolve SEP Topics III-2 & III-4.A, Wind & Tornado Loadings & Tornado Missiles Appears Resonable.Approach Relies Heavily on Use of TORMIS Code

ML20207L237
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	10/11/1988
From:	Wang A Office of Nuclear Reactor Regulation
To:	Mroczka E CONNECTICUT YANKEE ATOMIC POWER CO.
References
TASK-03-02, TASK-03-04.A, TASK-3-2, TASK-3-4.A, TASK-RR TAC-51938, NUDOCS 8810170247
Download: ML20207L237 (2)

Text

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4CT. I 1 1988 l

Docket No. 50-213 '

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1

Mr. Edward J. Mroczka  !

Senior Vice President

, Nuclear Engineering and Operations  :

Connecticut Yankee Atomic Power Company l P. O. Box 270 l 3

Hartford, Connecticut 06141-0270 I

Dear Mr. Mruczka- '

SUBJECT:

PROPOSED ltETHOD TO RESOLVE SEP TOPICS III-2 AND III-4.A - WIND  !

{ AND TORNADO LOADINGS AND TORNADO MISSILES (TAC NO. 51938) i 4 ,

By letter dat.ed June 3, 1988 Connecticut. Yankee Atomic Power Company (CYAPC0) I i

proposed a methodology, which utilizes probabilistic techniques to resolve SEP

, Topics III-2 and III-4.A. The staff has reviewed this submittal and agree the i I

approach appears to be reasonable. We note that this approach relies heavily  !

i on the use of the TORMIS Code. i j The application of this Code for tne Haddam Neck site has not been reviewed. l j As your staff noted, the NRC staff SER regarding TORMIS, dated November 29,  !

1983, noted several caveats for use of this Code at any particular site. The

(

i NRC staff recomends that CYAPC0 address the items noted in our SER, so that l the NRC can determine the applicability of the TORMIS Code at the Haddam Neck site.

f This will help expedite our review of your study which is due to be completed in mid-1989 and provide greater assurance that your methodology is appropriate. l Sincerely, l

}

/s.

Alan B. Wang, Project Manager l

Project Directorate I-4  ;

l Division of Reactor Projects I/II l

! Office of Nuclear Reactor Regulation l

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l Mr.. Edward J. Mroczka i Cs;necticut Yankee Atomic Power Company Haddam Neck Plant l

l cc:

Gerald Garfield, Esquir R. M. Kacich, Manager l

Day, Berry and Howard Generation Facilities Licensing t Counselors at Law Northeast Utiitties Service Company City Place Post Office Box 270  !

Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270 ,

W. D. Romberg, Vice President D. O. Nordquist '

Nuclear Operations Manager of Quality Assurance '

Nurtheast Utilities Service Company Northeast Nuclear Energy Company

, Post Office Box 270 Post Office Box 270 l Hartford, Connecticut 06141-0270 Hartford, Connecticut 06141-0270 '

• Kevin IeCarthy, Director Regional Administrator .

Radiation Control Unit Region I Department of Environmental Protection U. S. Nuclear Regulatory Cotinission State Office Building 475 Allendale Road Hartford, Connecticut 06106 King of Prussia, Pennsylvania 19406 Bradford S. Chase, Under Secretary Board of Selectmen Energy Division Town Hall Office of Policy and Hanagement Haddam, Connecticut 06103 80 Washington Street Hartford, Connecticut 06106 J. T. Shedlosky, Resident Inspector Haddam Neck Plant D. B. tiiller, Station Superintendent c/o V. S. Nuclear Regulatory Comission Haddam Neck Plant Post Office Box 116 Connecticut Yankee Atomic Power Company Eust Haddam Post Office 1 RfD 1, Post Office Box 127E East Haddam, Connecticut 06423 East Hampton, Connecticut 06424 G. H. Bouchard, Unit Superintendent l Haddam Neck Plant l RFD #1 Post Office Box 127E East Hampton, Connecticut 06424 l .

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