ML20137L328

Informs That Submitted Matl Marked as Proprietary Re Loss of Coolant Accident Calculations for Plant,Units 1,2 & 3 Will Be Withheld from Public Disclosure,Per 10CFR2.790(b)(5)

ML20137L328
Person / Time
Site:	Browns Ferry
Issue date:	04/03/1997
From:	Williams J NRC (Affiliation Not Assigned)
To:	Kingsley O TENNESSEE VALLEY AUTHORITY
References
NUDOCS 9704070201
Download: ML20137L328 (2)

Text

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( g j NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 30856-0001 k f

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April 3,1997 .

Mr. Oliver D. Kingsley, Jr.

President, TVA Nuclear and Chief Nuclear Officer Tennessee Valley Authority -

6A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

SUBJECT:

REQUEST FOR WITHHOLDING INFORMATION FROM PUBLIC DISCLOSURE BROWNS FERRY UNITS 1, 2, AND 3

Dear Mr. Kingsley:

By a Tennessee Valley Authority (TVA) letter dated March 11, 1997, and an i affidavit executed on February 9, 1996, by David J. Robare of the General '

Electric Company (GE) at San Jose, California, GE submitted information regarding loss of coolant accident calculations for the Browns Ferry Nuclear ,

Plant (BFN) Units 1, 2, and 3. GE has requested that the information provided l

. in TVA's March 11, 1997 letter be withheld from public disclosure pursuant to 10 CFR 2.790.

The affidavit stated that the information submitted should be considered exempt from mandatory public disclosure for the following reasons:

a. Information that discloses a process, method, or apparatus, '

including supporting data and analyses, where the prevention of its use by GE's competitors without license from GE constitutes a competitive economic advantage over other companies; and

b. Information which, if used by a competitor, would reduce his expenditure of resources or improve his competitive position in the design, manufacture, shipment, installation, assurance of quality, or licensing of a similar product.

c. The information is classified as proprietary because it contains detailed results of analytical models, methods and processes, including computer codes, which GE has developed, obtained NRC approval of, and applied to perform evaluations of boiling water reactor loss of coolant accidents. The development and approval of these computer codes was achieved at a significant cost to GE. The development of the evaluation process along with the interpretation and application of the analytical results is derived from the extensive experience database that constitutes a major GE asset.

We have reviewed the information provided by TVA and GE in accordance with the requirements of 10 CFR 2.790 and, on the basis of statements by Mr. Robare,

have determined that the submitted information sought to be withheld contains trade secrets or proprietary commercial information. O; 9704070201 970403 I 0 PDR ADOCK 05000259 P PDR

.. -f Mr. Oliver D. Kingsley- Therefore, the submitted material marked as proprietary will be withheld from public disclosure pursuant to 10 CFR 2.790(b)(5) and Sect',on~10,3(b) of.the Atomic Energy Act of 1954, as amended.

Withholding from public inspection shall not affect the right, if any..of persons properly and directly concerned to inspect the documents. If the need arises, we may send copies of this information to our consultants working in this area. We will, of course, ensure that the consultants have signed the appropriate agreements for handling proprietary information.

~s.

If the basis for withholding this information from public disclosure should j change in the future such that the information could then be made available  !

for public inspection, you should promptly notify the NRC. You should also understand that the NRC may have cause to review this determination in the  ;

future, for example, if the scope of a Freedom of Information Act request includes your information. In all review situations, if the NRC makes a

determination adverse to the above, you will be notified in advance of any public disclosure.

Please call me at (301)415-1470 if you have any questions regarding this topic.

Sincerely, Original sitned by Joseph F. Williams, Project Manager Project Directorate II-3 Division of Reactor Projects - I/II .

Office of Nuclear Reactor Regulation  !

Docket Nos. 50-259, 50-260, and 50-296 cc: See next page Distribution

' = Docket Die "PUBLIC~

BFN Reading S. Varga M. P. Siemien, 0GC (hardcopy-and E-mail MPS)

J. Johnson, RII DOCUMENT NAME: G:\BFN\SAFRGSTR.LTR.. *see previous concurrence To rcceive a copy of this document, indicate in the box: "C" - Copy without attachment / enclosure "E" - Copy with attachment / enclosure "N" - No copy 0FFICE PDIl-3/PM /d , lq PO!! 3/LA a/ l OGC l PDIl-3/D ft () l NAME JWilliams F SClayton /W ~ MPSiemien* FMebdon'~d L 1" l DATE 04/ L /97/' 04/ 2_/97 3/31/97 04/1, /91 OFFICIAL RECORD COPY

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