ML20076E855

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Forwards Proprietary Assessment of Potential Radiological Consequences for High Exposure Fuel, Supplementing 830624 License Amend Request Re Peak Pellet Exposure.Affidavit Requesting Info Be Withheld (Ref 10CFR2.790) Encl
ML20076E855
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 08/15/1983
From: Musolf D
NORTHERN STATES POWER CO.
To:
Office of Nuclear Reactor Regulation
Shared Package
ML19289B509 List:
References
NUDOCS 8308250031
Download: ML20076E855 (6)


Text

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C Northern States Power Company 414 Nicohet Man Minneapons M.nnesota 55401 Te6ephone (6121330-5500 August 15, 1983 Director Office of Nuclear Reactor Regulation U S Nuclear Regulatory Commission Washington, DC 20555 PRAIRIE ISLAND NUCLEAR GEI'ERATIIiG PLANT Docket Nos. 50-282 License Nos. DPR-42 50-306 DPR-60 Supplemental PROPRIETARY Information Related to License Amendment Request dated June 24, 1983 Offsite Dose Calculations to Support Peak Pellet Exposures Up To 55 GWD/MTU This submittal supplements the License Amendment Request dated June 24, 1983. The June 24, 1983 submittal, titled "LOCA Analysis", requested Fq be increased to 2.32 and the peak pellet exposure be increased to 55 GUD/MTU. This submittal contains offsite dose calculations using revised source terms for LOCA end fuel handling accidents.

Also included in the calculations were new Shield Building and Contain-ment leakage rates identified in a November 23, 1973 letter from L 0 Mayer (NSP) to J F O' Leary (NRC). Results of these calculations show that the guidelines of 10CFR Part 100 would be satisfied.

Exhibit A is the Exxon Nuclear Company (ENC) affidavit of R B Stout which states the basis for exemption from public disclosure of the ENC document XN-NF-719(P) in accordance with 10 CFR 2.790(b)(1)(ii).

Exhibit B is the Exxon Nuclear Company document XN-NF-719(P).

For additional information regarding this document or the license amend-ment request please cont et this office.

ua David !!usolf Manager-Nuclear Support Se*' ices ruct LDCD Q gc.

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Attachment Contains 10 CFR 2.790 Proprietary Information l

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e EXIIIBIT A PRAIRIE ISLAND NUCLEAR GENERATING PLAITT August 15, 1983 Affidavit of R B Stout

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j AFFIDAVIT STATE OF Washington )

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I, Richard B. Stout, being duly sworn, hereby say and depose:

1.

I am Manager, Licensing & Safety Engineering, for Exxon j

Nuclear Company, Inc. (" ENC"), and as such I am authorized to execute this Affidavit.

2.

I am tamiliar with ENC's detailed document control system and policies which govern the protection and control of information.

3.

I am familiar with the document XN-NF-719(P), entitled "As-j sessment of Potential Radiological Consequences for High Exposure Fuel,"

referred to as " Document".

Information contained in this Document has been classified by ENC as proprietary in accordance with the control system and policies established by ENC for the control and protection of. information.

4.

The Document contains information of a proprietary and con-fidential nature and is of the type customarily held in confidence by ENC and

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not made available to the public.

Based on my experience, I am aware that other companies regard information of the kind contained in the Document as 4

i being proprietary and confidential.

5.

The Document has been made available to Northern States Power Company in confidence, with the request that the information contained in the Document not be disclosed or divulged.

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2 6.

The; Document contains information which is vital to a com-petitive advantage of ENC and would be helpful to competitors of ENC when competing with ENC.

i 7.

The information contained in the Document is considered to be j

proprietary by ENC because it reveals c.ertain distinguishing aspects of safety analysis methods which secure conTetitive economic advantage to ENC for fuel design optimizat ion and impoved marketabil ity, and includes information utilized by ENC in its business which affords ENC' an ~ opportunity.

to obtain a competitive advantage over its competitors who do not or may not know or use the information contained in the Document.

8.

The disclosure of the proprietary information contained in the Document to a competitor would-nermit the competitor to reduce its expenditure of money and manoower and to improve its competitive position by giving it extremely valuable insights into safety analysis methods, and would result in substantial harm to the competitive position of ENC.

l 9.

The Document contains proprietary information which is-held in-confidence by ENC and is not available in public sources.

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10.

In accordance with ENC's policies governing the protection and I

control of information, proprietary information contained in the Document has' s

been made ava il able, on a limited basis, to others outside ENC only as required and under suitable agreement providing for non-disclosure and j

limited use of the~ information.

11.

ENC policy requires that propQetary information be kept in a secured file or area and distributed on a need-to-know basis.

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12. This Document provides information which reveals safety analysis methods developed by ENC over the past several years.

ENC has invested millions of dollars and many man-years of effort in developing the analysis methods revealed in the Document.

Assuming a competitor had available the same background data and incentives as ENC, the competitor

.might, at a minimum, develop the information for the same expenditure of manpower and money as ENC.

13.

Bised on my experience in the industry, I do not believe that the background dah an.d incentives of ENC's competitors are sufficiently similar to the corresponding background data and incentives of ENC to reasonably expect such competitors would be in a position to duplicate ENC's proprietary information contained in the Document.

THAT the statements made hereinabove are, to the best of my knowledge, information, and belief, truthful and complete.

'FURTHER AFFIANT SAYETH NOT.

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SWORN TO AND SUBSCRIBED before me this / f day of

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NOTARY PUBLIC

EXHIBIT B PRAIRIE ISLAND NUCLEAR GENERATING PLANS August 15, 1983 Exxon Nuclear Report XN-tTF-719 (P)

Note: T1.e dos.2 of 82 rtr for 7uel handling Accident inside Containment was documented in a January 12, 1979 letter from L 0 Mayer to the Director,of Huclear Reactor Regulation.

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