ML20096F243

Forwards WCAP-13256,Rev 1 & WCAP-13255,Rev 1.Repts Provide Nonproprietary & Proprietary Versions of Facility 920302 SG Startup Approval Meeting Presentation Matls,Respectively. Proprietary WCAP-13255,Rev 1 Withheld (Ref 10CFR2.790)

ML20096F243
Person / Time
Site:	North Anna
Issue date:	05/08/1992
From:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19303E834	List: ML20096F243 ML20096F260 ML20096F270
References
92-254, NUDOCS 9205200313
Download: ML20096F243 (2)

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YlHORNIA I?!.lTTitIC AND l'OWEH (bMPANY al lC II M O N H, VillH IN 1 A 909Di f i

May 8, 1992 r

U.S. Nuclear Regulatory Commission Serial No. 92 25' Attention: Document Control Desk NL&P/JBL: R1 Washington, D.C. 20555 Docket No. 50 3M  :

License No. NPF 4  :

Gentlemen; i VIRGINIA ELECTRIC AND POWER COMPANY' NORTH ANNA POWER STATION UNIT 1 STEAM GENERATOR STARTUP APPROVAL NIEETING  :

W.ESIINGHOUSEL_ PRESENTATION MATERIALS  :

On March 2,1992, Virginia Electric and Power Company and Westinghouse Electric Corporation met with the NRC to present the North Anna Unit 1 steam generator mid-cycle inspection results and request NRC approval for unit startup. Por11ons of the Westinghouse presentation material were identified as proprietary. Therefore, in accordance with 10 CFR Section 2.790, we are providing, herewith, proprietary and .

I non proprietary versions of that presentation material, The enclosed WCAP reports

_ provide a compilation of the Westinghouse presentation materials and several pages i

_ of supplemental material which were provided to the NRC but not :7cluded as part of L the March 2,1992 presentation.  :

i

As discussed in our letter dated May 1,1992, one aspect of the information presented on March 2,1992 was in error and has subsquently been corrected. The calculated value for primary to secondary leak rate as a result of a sp9cial main steam line break

--accident analysis was erroneously reported as_24.2 gpm: The calculated leak rate .

value for th!s= special accident scenario should be 30.igpm. ~The information contained in the enclosed WCAP report has intentionally not been corrected to reflect j this change, i.c., the enclosed material is intended to be the same as the material presented to the NRC on March 2,1992. l lc Enclosed ~are ten copies each of WCAP 13255,' Rev.1, " North Anna Unit 1:Stoam  !

Generator Startup Approval Meeting _ Presentation Materials" (Proprietary) (Attachmeri.

1) and WCAP 13250, Rev.1, " North Anna Unit 1. Steam Generator Startup Approval

Meeting Presentation Materials" (Non-Proprietary) (Attachment 2). Alsu enclosed is a Westinghouse application-letter for withholding proprietary information, CAW 92 289,' I with_ accompanying affidavit, Proprietary Information. Notice,- and Copyright Notice L . (Attachment 3). ,

The proprietary aspects of this iriformation is supported by the affidavit signed by Westinghouse, the owrer of the information. The affidavit sets forth the basis on which P the 'information may be withheld from public disclo::ure by the Commission and L

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addresses with specificity the considerations listed in paragraph (b)(4) of 10 CFR Section 2.790 of the Commission's regulations. Accordingly, it is respectfully ,

requested that the information which is propriotary to Westinghouse be withhold from public disclor,ure in accordance with 10 CFR Section 2.790 of the Commission's regulations.

Correspondence with respect to the propriotary aspects of the items listed above or the supporting Westinghouse affidavit should reference CAW 92 289 and should be addressed to Nicholas J. Liparulo, Manager of Nuclear Safety & Regulatory Affairs, Westinghouse Electric Corporation, P.O. Box 355, Pittsburgh, Pennsylvania 15230-0355. ,

Should you have any questions or require additional information, please contact us, f Very truly yours,

, / .(I Td hkl@)\[Muk, W. L Stewart Senior Vice President - Nuclear i Attachments  ;

1. Westinghouso Electric Corporation Report, WCAP 13255, Rev.1 (10 Copies)

2. Westinghouse Electric Corporation Report, WCAP 13256, Rev.1 (10 Copies)

3. Westinghouse Application for Withholding Proprietary information, CAW 92 289 l cc: U.S. Nuclear Regulatory Commissicn Region ll 101 Marietta Street, N.W.

Suite 2900 Atlanta, Georgia 30323 Mr. M. S. Lesser NRC Senior Resident inspnctor North Anna Power Station 1

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