ML112991152

Forwards Supplemental Proprietary Evaluation of Mark I Safety/Relief Valve Load Cases C3.1,C3.2 & C3.3 for Monticello Nuclear Generating Plant. Rept Withheld (Ref 10CFR2.790).Affidavit Encl

ML112991152
Person / Time
Site:	Monticello
Issue date:	08/03/1983
From:	Musolf D Northern States Power Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML112991153	List: ML112991152
References
NUDOCS 8308090459
Download: ML112991152 (8)

Text

V REGULAOY INFORMATION DISTRIBUTI SYSTEM (RIDS)

ACCESSION NBR;8308090459 DCDATE: 83/08/03 NOTARIZED: YES DOCKET #

FACIL:50-263 Monticello Nuclear Generating Plant, Northern States 05000263 AUTHNAME AUTHOR AFFILIATION MUSOLFrD, Northern States Power Co, RECIP.NAME RECIPIENT AFFILIATION Officeof Nuclear Reactor Regulation, Director

SUBJECT:

Forwards supplemental proprietary "Evaluation of Mark I Safety/Relief Valve Load Cases C3.1,C3.2 & C3.3 for Monticell Nuclea Generating P1 ."'Rept withheld (reft 10

(,t 2.790)

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TITLE: Proprietary Review on-Operating Reactor NOTES:

RECIPIENT 'COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL NRR O2_BC 7 7 INTERNAL9 ELD/HDS1 1 0 REG 1 1 RGN3 #15 EXTERNAL: ACRS #09 6 6 LPDR 1 0 NRC PDR 1 0 NTIS 1 0 Ko4g-o, #r16-#a TOTAL NUMBER OF COPIES REQUIRED: LTTR 19 ENCL is

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Northern States Power Company 414 Nicollet Mall Minneapolis, Minnesota 55401 Telephone (612) 330-5500 August 3, 1983 Director Office of Nuclear Reactor Regulation U S Nuclear Regulatory Commission Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Supplemental Proprietary Document (NEDC-24374) Related to Modifications to Safety/Relief Valve Control System to Limit Containment Hydrodynamic Loads Our letter dated June 13, 1983 transmitted for the NRC Staff's information a description of the subject modifications and an evaluation of the effects of the modified system on existing plant systems. Subsequent to the review of that information the Staff has requested the results of the analysis for the reduced setpoints associated with these modifications.

The purpose of this letter is to transmit these results, which are contained in a General Electric Company Proprietary Report entitled "Evaluation of Mark I S/RV Load Cases C3.1, C3.2 and C3.3 for the Monticello Nuclear Generating Plant", NEDC-24374, December, 1981.

Exhibit A is the General Electric Company (G.E.) affidavit of Glenn G Sherwood which states the basis for exemption from public disclosure of the GE document NEDC-24374 (in accordance with 10 CFR 2.790 (b)(1)(ii)).

Exhibit B is the General Electric Company Document NEDC-24374.

For additional information regarding this document or the related planned SRV blowdown control system, please contact this office.

David Musolf Manager-Nuclear Support ervices DMM/TAP /j s cc: Regional Administrator-III NRR Project Manager, NRC Resident Inspector, NRC G Charnoff Attachment A140 0 Contains 10 CFR 2.790 Proprietary Information 941'4 8308090459 830803 PDR ADOCK 05000263 P PDR A

MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Exhibit A Letter dated August 3, 1983 Exhibit A is affidavit of Glenn G Sherwood (General Electric Company) dated July 12, 1983.

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GENERAL ELECTRIC COMPANY AFFIDAVIT I, Glenn G. Sherwood, being duly sworn, depose and state as follows:

1. I am Manager of Safety & Licensing, General Electric Company, and have been delegated the function of reviewing the information described in paragraph 2 which is sought to be withheld and have been authorized to apply for its withholding.

2. The information sought to be withheld is contained in General Electric Company report "Evaluation of Mark I S/RV Load Cases C3.1, C3.2 and C3.3 for the Monticello Nuclear Generating Plant", Class 3, (General Electric Company Proprietary Information), NEDC-24374, December 1981.

3. In designating material as proprietary, General Electric utilizes the definition of proprietary information and trade secrets set forth in the American Law Institute's Restatement Of Torts, Section 757.

This definition provides:

"A trade secret may consist of any formula, pattern, device or compilation of information which is used in one's business and which gives him an opportunity to obtain an advantage over competitors who do not know or use it.... A substantial element of secrecy must exist, so that, except by the use of improper means, there would be difficulty in acquiring informa tion.... Some factors to be considered in determining whether given information is one's trade secret are: (1) the extent to which the information is known outside of his business; (2) the extent to which it is known by employees and others involved in his business; (3) the extent of measures taken by him to guard the secrecy of the information; (4) the value of the information to him and to his competitors; (5) the amount of effort or money expended by him in developing the information; (6) the ease or difficulty with which the information could be properly acquired or duplicated by others."

4. Some examples of categories of information which fit into the definition of proprietary information are:

a. Information that discloses a process, method or apparatus where prevention of its use by General Electric's competitors without license from General Electric constitutes a competitive economic advantage over other companies;

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b. Information consisting of supporting data and analyses, includ ing test data, relative to a process, method or apparatus, the application of which provide a competitive economic advantage, e.g., by optimization or improved marketability;

c. 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. Information which reveals cost or price information, production capacities, budget levels or commercial strategies of General Electric, its customers or suppliers;

e. Information which reveals aspects of past, present or future General Electric customer-funded development plans and programs of potential commercial value to General Electric;

f. Information which discloses patentable subject matter for which it may be desirable to obtain patent protection;

g. Information which General Electric must treat-as proprietary according to agreements with other parties.

5. In addition to proprietary treatment given to material meeting the standards enumerated above, General Electric customarily maintains in confidence preliminary and draft material which has not been subject to complete proprietary, technical and editorial review.

This practice is based on the fact that draft documents often do not appropriately reflect all aspects of a problem, may contain tentative conclusions and may contain errors that can be corrected during normal review and approval procedures. Also, until the final document is completed it may not be possible to make any definitive determination as to its proprietary nature. General Electric is not generally willing to release such a document to the general public in such a preliminary form. Such documents are, however, on occasion furnished to the NRC staff on a confidential basis because it is General Electric's belief that it is in the public interest for the staff to be promptly furnished with significant or potentially significant information. Furnishing the document on a confidential basis pending completion of General Electric's internal review permits early acquaintance of the staff with the information while protecting General Electric's potential proprietary position and permitting General Electric to insure the public documents are technically accurate and correct.

6. Initial approval of proprietary treatment of a document is made by the Subsection Manager of the originating component, the man most likely to be acquainted with the value and sensitivity of the information in relation to industry knowledge. Access to such documents within the Company is limited on a "need to know" basis and such documents at all times are clearly identified as proprietary.

7. The procedure for approval of external release of such a document is reviewed by the Section Manager, Project Manager, Principal Scientist or other equivalent authority, by the Section Manager of the cognizant Marketing function (or his delegate) and by the Legal Operation for technical content, competitive effect and determination of the accuracy of the proprietary designation in accordance with the standards enumerated above. Disclosures outside General Electric are generally limited to regulatory bodies, customers and potential customers and their agents, suppliers and licensees only in accordance with appropriate regulatory provisions or proprietary agreements.

8. The document mentioned in paragraph 2 above has been evaluated in accordance with the above criteria and procedures and has been found to contain information which is proprietary and which is customarily held in confidence by General Electric.

9. The document mentioned in paragraph 2 above describes one design change which will mitigate the induced loads of safety/relief valve (S/RV) subsequent actuations (second pop) identified as load cases C3.1, C3.2, and C3.3 at the Monticello Nuclear Generating Plant.

The design change presented in this report is:

a. A low-low set relief logic (i.e., changing S/RV logic and/or setpoints).

It should be noted that this report presents the concepts of the design changes and their important parameters.

10. Public disclosure of the information sought to be withheld is likely to cause substantial harm to the competitive position of the General Electric Company and deprive or reduce the availability of profit-making opportunities because cost required to obtain the information amounted to approximately $125,600.

b STATE OF CALIFORNIA ) )5s:

COUNTY OF SANTA CLARA Glenn G. Sherwood, being duly sworn, deposes and says:

That he has read the foregoing affidavit and the matters stated therein are true and correct to the best of his knowledge, information, and belief.

Executed at San Jose, California, this/,-,day of 19&~z

&U.glx Glenn G. Sherwood General Electric Company Subscribed and sworn before me this/2 day of 1983 I

OF7ClAL SEAL KAREN A. DUNBAR NOTARY PUBLIC - CALIFORNIA NO ARY PUBLIC, STATE OF CALIFORNIA Santa Clara County My Commission Expires Dec. 6, 1983 I

Contains 10 CFR 2.790 Proprietary Information MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 Exhibit B Letter dated August 3, 1983 Exhibit B contains the following proprietary General Electric Company Report:

NEDC-24374 December, 1981 "Evaluation of Mark I S/RV Load Cases C3.1, C3.2 and C3.3 for the Monticello Nuclear Generating Plant" Contains 10 CFR 2.790 Proprietary Information Exempt from Public Disclosure