ML20038B594

From kanterella
Jump to navigation Jump to search
Forwards Proprietary & Nonproprietary Versions of WCAP-9912, Steam Generator Tube Plugging Margin Analysis for Virgil C Summer Nuclear Power Plant Unit 1. Westinghouse 811106 Ltr & Affidavit Requesting Withholding (Ref 10CFR2.790) Encl
ML20038B594
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 11/30/1981
From: Nichols T
SOUTH CAROLINA ELECTRIC & GAS CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
Shared Package
ML19268A489 List:
References
NUDOCS 8112080420
Download: ML20038B594 (3)


Text

7 SOUTH CAROLINA ELECTRIC a GAS COMPANY

,,ost o m cc .0,7..

/p\(OK cctussia, soura canow:4 eseie M>y d ^

j h' v.c T C. NICHCLS.JR.

~<,ot,1.. o. m ar m t November 30, 1981 gO , gp (f j Actc.n on r o=:

4 i {. --

i /

Mr. Harold R. Denton, Director b ,. g dr h[/

4/,

Office of Nuclear Reactor Regulation 'h U. S. Nuclear Regulatory Ccninission ~ N f g' Washmgton, D. C. 20555

Subject:

Virgil C. Sumner Nuclear Station Docket tb. 50/395 Steam Generator Tube Plugging burgin

Dear Mr. Denton:

'Ihe enclosed report provides calculations in accordance with the criteria of Regulatory Guide 1.12i. It describes the analysis and empirical data used in determining the steam generator tube plugging margin.

Enclosed are:

1. Five copies of " Steam Generator Tube Plugging Margin Analysis for the Virgil C. Sumnur Nuclear Power Plant Unit Ib.1, " NCAP-9912, Ibvember 1981 (Proprietary) .
2. Five copies of " Steam Generator Tube Plugging Margin Analysis for the Virgil C. Sumner Nuclear Power Plant Unit No.1," NCAP-9989, Novenber 1981 (Non-Proprietary version of ICAP -9912) .

Also enclosed are:

a) One (1) original Westinghouse letter CAW-81-79.

b) One (1) copy of Affidavit CAW-81-79.

As this subnittal contains information proprietary to Westinghouse Electric Corporation, it is supported by an affidavit signed by Westinghouse, the caners of the !nformation. 'Ihe affidavit sets forth the basis on which the information may be withheld fran public disclosure by the Ominission and addresses with specificity the considerations listed in Inragraph (b)(4) of Section 2.790 of the catmissions ragulations.

T Accordingly, it is respectfully requested that the infonnation "E which is proprietary to Westinghouse be withheld fran public Do disclosure in accordance with 10CFR Section 2.790 of the Ormission's o$ regulations. Correspondence with respect to the proprietary aspects Q$ of this application for withholding or the supporting Westinghouse o affidavit should reference CAW-81-79 and should be addressed to Ocn R. A. Wiesemann, Manager, Pegulatory and Iagislative Affairs, O"

y ICj [CdUAb (,M rs * /fr h muu Ed Pt36I h6f(ressCYW (h M' 'I N[f g

A& l  : ls0lc orss wa ;

ap

m Mr. Harold R. Denton NovemM r 30, 1981 Page 2 Westinghouse Electric (brporation, P. O. Box 355, Pittsburgh, Pennsylvania 15230.

In conclusion, this subnittal provides the technical justification for and supports the 55% steam generator tube plugging nurgin as contained in the Virgil C. Su:mTner Nuclear Station Technical Specifications.

Very truly yours, e

T. C. Ni tols, Jr.

RBC:'ICN:lkb Attachments cc: V. C. Summer (w/o attach.)

G. H. Fischer (w/o attach.)

T. C. Nichols, Jr. (w/o attach.)

H. N. Cyrus (w/o attach.)

J. C. Ruoff (1 non-prop.)

D. A. Nauman (w/o attach.)

W. A. Williams, Jr. (1 non-prop.)

R. B. Clary (l prop.)

O. S. Bradham (1 prop.)

A. R. Koon (l prop.)

M. N. Browne (1 prop.)

B. A. Bursey (1 non-prop.)

J. L. Skolds (1 prop.)

J. B. Knotts, Jr. (1 non-prop.)

G. J. Braddick (w/o attach.)

H. T. Babb (l prop.)

J. B. Cookinham (w/o attach.)

PRS (1 non-prop. & prop.)

NPCF (w/o attach.)

File (l prop.)