ML20058L766

Advises That Document Entitled, LaSalle County Station Units 1 & 2 SAFER/GESTR-LOCA,Loss-Of-Coolant Analysis, Marked as Proprietary Will Be Withheld from Public Disclosure (Ref 10CFR2.790)

ML20058L766
Person / Time
Site:	LaSalle
Issue date:	12/14/1993
From:	Gody A Office of Nuclear Reactor Regulation
To:	Farrar D COMMONWEALTH EDISON CO.
References
NUDOCS 9312170186
Download: ML20058L766 (3)

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UNITED STATES

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December 14, 1993

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t Docket Nos. 50-373 and 50-374 Mr. D. L. Farrar Manager, Nuclear Regulatory Services Commonwealth Edison Company Executive Towers West III, Suite 500 1400 OPUS Place Downers Grove, Illinois 60515

SUBJECT:

REQUEST FOR W11HHOLDING INFORMATION FROM PUBLIC DISCLOSURE i

By letter from Commonwealth Edison Company (Ceco) dated October 28, 1993, and General Electric Company's (GE) affidavit dated October 14, 1993, you submitted GE proprietary report NEDC-32258P, "LaSalle County Station, Units 1 and 2,- SAFER /GESTR-LOCA, Loss-of-Coolant Accident Analysis," and requested that it 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:

Information that discloses a process, method, or apparatus, including supporting data and analyses, where prevention of its use by GE's competitors without license from GE constitutes a competitive economic advantage _over other companies; and Information which, if used by a competitor, would reduce his expenditure of resources or improve his competitive position ir, the design, manufac-ture, shipment, installation, assurance of quality, or licensing of a similar product.

The information identified as NEDC-32258P, 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 the loss-of-coolant accident for the BWR.

The development and approval of the loss-of-coolant accident computer codes used in this analysis was achieved at a significant cost, on the order of several million dollars, 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.

3)91 1G0006 tu gogg 88ga NRC RM CEMIER f!OPY P

i Mr. D. L. Farrar December 14, 1993 In addition to proprietary treatment given to material meeting the standards enumerated above, GE customarily maintains in confidence preliminary and draft ll material which has not been subject to complete proprietary, technical and editorial review.

This practice is based on the fact that draft documents

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of ten do not appropriately reflect all aspects of a problem, may contain tentative conclusions and may contain errors that can be corrected during i

normal review and approval procedures. Also, until.the final document is l

complete it may not be possible to make any definitive determination as-to its.

l

. proprietary nature.

General Electic is not generally willing to release such a document in such a preliminary form. Such documents are, however, on occasion furnished to the NRC staff on a confidential basis because it is GE's belief that it is in the public interest for the staff to be promptly furnished with significant or potentially significant information.

Furnishing l

the document on a confidential basis pending comple-tion of GE's internal review permits early acquaintance of the staff with the information while protecting GE's potential proprietary position and permitting ~GE to insure the i

public documents are technically accurate and correct.

Therefore, we have determined that the document entitled "LaSalle County l

Station, Units I and 2, SAFER /GESTR-LOCA, Loss-of-Coolant Accident Analysis,"

i 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

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i 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 i

this area.

We will, of course, insure that the consultants have signed the j

appropriate agreements for handling proprietary information.

If the basis for withholding this information from public inspection.should

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change in the future such that the information could then be made available 4

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 i

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.

Sincerely, i

Original signed by:

Anthony T. Gody, Jr., Project Manager i

Project Directorate III-2 Division of Reactor Projects - III/IV/V j

Office of Nuclear Reactor Regulation DISTRIBUTION:

Docket File AGody, Jr.

t cc:

See next page NRC & Local PDRs J. Roe CMoore PDIII-2 r/f J. Zwolinski J. Dyer BC1ayton,.RIII MPSiemien, OGC 3

fAhlhl PM:PDIII-2 D:PDIII-2 OGChh 0FC b405R,E AGODY. JR.

JDYER MPSIEMIEN NAME hb93 0/d/93 l 4 / /93

/ /93 N/k/93 DATE

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<n LCOPY TES)NO (YES/NO

'YES/NO >

YES/NO YES/NO

i Mr. D. L. Farrar LaSalle County Station Commonwealth Edison Company Unit Nos. I and 2 cc:

Phillip P. Steptoe, Esquire Robert Cushing Sidley and Austin Chief, Public Utilities Division One First National Plaza Illinois Attorney General's Office Chicago, Illinois 60603 100 West Randolph Street Chicago, Illinois 60601 Assistant Attorney General 100 West Randolph Street Michael I. Miller, Esquire Suite 12 Sidley and Austin Chicago, Illinois 60601 One First National Plaza Chicago, Illinois 60690 Resident Inspector /LaSalle, NPS U. S. Nuclear Regulatory Commission Rural Route No.1 LaSalle Station Manager P. O. Box 224 LaSalle County Station Marseilles, Illinois 61341 Rural Route 1 P. O. Box 220 Chairman Marseilles, Illinois 61341 LaSalle County Board of Supervisors LaSalle County Courthouse Ottawa, Illinois 61350 Attorney General 500 South 2nd Street Springfield, Illinois 62701 Chairman Illinois Commerce Commission Leland Building 527 East Capitol Avenue Springfield, Illinois 62706 Illinois Department of Nuclear Safety Office of Nuclear Facility Safety 1035 Outer Park Drive Springfield, Illinois 62704 Regional Administrator U. S. NRC, Region III 801 Warrenville Road Lisle, Illinois 60137 Robert Neuman Office of Public Counsel State of Illinois Center 100 W. Randolph Suite 11-300 Chicago, Illinois 60601