ML17181A229

Discusses from Commonwealth Edison Co & 950627 Affidavit from Transco Products,Inc & Requesting Documents Be Withheld from Public Disclosure Per 10CFR2.790.Documents Will Be Withheld as Requested

ML17181A229
Person / Time
Site:	LaSalle
Issue date:	07/28/1995
From:	William Reckley NRC (Affiliation Not Assigned)
To:	Farrar D COMMONWEALTH EDISON CO.
References
TAC-M85536, NUDOCS 9508030025
Download: ML17181A229 (5)

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UNITED STATES NUCLEAR REGULATORY COMMISSION Mr. D. L. Farrar WASHINGTON, D.C. 20555-0001 July 28, 1995 Manager, Nuclear Regulatory Services Commonwealth Edison Company Executive Towers West III 1400 Opus Place, Suite 500 Downers Grove, IL 60515

SUBJECT:

REQUEST FOR WITHHOLDING INFORMATION FROM PUBLIC DISCLOSURE

Dear Mr. Farrar:

By letter from Commonwealth Edison Company (ComEd) dated May 24, 1995, and General Electric Company's (GE) affidavit executed by David Robare, dated May 19, 1995, you subm'itted proprietary documents entitled, "Back-Up Calculation for RPV Stress Report No. 25A5691, Dresden Units 2 & 3," GENE-771-77-1194, Revision 2; "Backup Calculations for Dresden Shroud Repair, Shroud Stress Report, Volume II, Dresden Units 2 & 3," GENE-771-82-1194, Revision l; "Shroud and Shroud Repair Hardware Analysis, Shroud Repair Hardware Backup Calculations, Dresden Units 2 & 3," GENE-771-83-1194, Revision I; "Shroud Repair Seismic Analysis, Dresden Units 2 & 3,"

GENE-771-84-1194, Revision 2; "Shroud Repair Seismic Analysis Backup Calculations, Dresden Units 2 & 3," GENE-771-85-1194, Revision 2; "Top Ring Plate and Star Truss Stress Analysis Backup Calculations, Dresden Units 2 &

3," GENE-771-96-0195, Revision l; "Dresden Units 2 & 3, Primary Structure Seismic Models," GENE-523-Al81-1294, Revision 1, December* 1994, and requested that they be withheld from public disclosure pursuant to 10 CFR 2.790.

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

"(4)a. Information that discloses a process, method, or apparatus, including supporting data and analyses, where prevention of its use by General Electric's competitors without license from General Electric constitutes a competitive economic advantage over other companies; (4)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;

D. (8)

... it contains detailed results of analytical models, methods and processes, including computer codes, and it contains the supporting Design Record File (ORF) detailed calculations, results and bases for conclusions. These reports are part of the ORF supporting information to evaluate a hardware design.modification (stabilizer for the shroud horizontal welds) intended to be installed in a reactor to resolve the reactor pressure vessel core shroud weld cracking concern.

This detailed level of information usually resides in GENE files, only for audit by customers and the NRC.

This information shows in specific detail the processes, codes and methods employed to perform the evaluations summarized in the above identified document.... "

We have reviewed your submittal and the material in accordance with the requirements of 10 CFR 2.790 and, on the basis of GE's statements, have determined that the submitted information sought to be withheld contains trade secrets or proprietary commercial information.

Therefore~ we have determined that the documents entitled "Back-Up Calculation for RPV Stress Report No. 25A5691, Dresden Units 2 & 3," GENE-771-77-1194; Revision 2; "Backup Calculations for Dresden Shroud Repair, Shroud Stress Report, Volume II, Dresden Units 2 & 3," GENE-771-82-1194, Revision l; "Shroud and Shroud Repair Hardware Analysis, Shroud Repair Hardware Backup Calculations, Dresden Units 2 & 3," GENE-771-83-1194, Revision l; "Shroud Repair Sei:simic Analysis, Dresden Units 2 & 3," GENE-771-84-1194, Revision 2; "Shroud Repair Seismic Analysis Backup Calculations, Dresden Units 2 & 3,"

GENE-771-85-1194, Revision 2; "Top Ring Plate and Star Truss Stress Analysis Backup Calculations, Dresden Units 2 & 3," GENE-771-96-0195, Revision l; "Dresden Units 2 & 3, Primary Structure* Seismic Models, 11 GENE-523-Al81-1294, Revision I~ December 1994, marked as proprietary will be withheld from public disclosure pursuant to 10 CFR 2.790(b)(5) and Section 103(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 document.

If the need arises, we may send copies of this information to our consultants working in this area.

We will, of course, insure that the consultants have signed the appropriate agreements for handling proprietary information.

If the basis for withholding.this information from public inspection should change in the future such that the information could then be made available for public 1nspection, you should promptly notify the NRC.

You should also understand that the NRC may have cause to review this determination in the

l i

r D. future, for example, if the scope of a Freedom of Information Act request includes your information.

In all review situations, if the NRC needs additional information from you or makes a determination adverse to the above, you will be notified in advance of any public disclosure.

Docket Nos. 50-237, 50-249 cc:

see next page Sincerely,

~F~ect Manager Project Directorate III-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation

D. L. Farrar Commonwealth Edison Company cc:

Michael I. Miller, Esquire Sidley and Austin One First National Plaza Chicago, Illinois 60603 Mr. Thomas P. Joyce Site Vice President Dresden Nuclear Power Station 6500 North Dresden Road Morris, Illinois 60450-9765 Mr. J. Heffley Station Manager Dresden Nuclear Power Station 6500 North Dresden Road Morris, Illinois 60450-9765 U.S. Nuclear Regulatory Commission Resident Inspectors Office Dresden Station 6500 North Dresden Road Morris, Illinois 60450-9766 Regional Administrator U.S. NRC, Region III 801 Warrenville Road Lisle, Illinois 60532-4351 Illinois Department of Nuclear Safety Office of Nuclear Facility Safety 1035 Outer Park Drive Springfield, Illinois 62704 Chairman Grundy County Board Administration Building 1320 Union Street Morris, Illinois 60450 David J. Robare General Electric Company 175 Curtner Avenue San Jose, California 95125 Dresden Nuclear Power Station Unit Nos. 2 and 3

D. future, for example, if the scope of a Freedom of Information Act request includes your information.

In all review situations, if the NRC needs additional information from you or makes a determination adverse to the above, you will be notified in advance of any public disclosure.

Docket Nos. 50-237, 50-249 cc:

see next page DISTRIBUTION:

Docket File PUBLIC PDI 11-2 r/f JRoe RCapra MPSiemien, OGC CMoore JStang PHil and, RI II Sincerely, Original signed by:

John F. Stang, Project Manager Project Directorate 111-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation DOCUMENT NAME:

0524. PRO

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To receive a c this document, indicate in the box: "C" = Copy without enclosures "E" = Copy with enclosures "N" = No copy OFFICE C..,.... PM: PDI 11-2 f£ OGC NAME

~ MPSIEMIE DATE 071:2.1 /95 OFFICIAL RECORD COPY