ML20077N057

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Forwards Application for Amend to Licenses DPR-42 & DPR-60, Changing TS 4.12, SG Tube Surveillance, to Incorporate Revised Acceptance Critia for SG Tubes W/Degradation in Tubesheet Roll Expansion Region.Proprietary Rept Encl
ML20077N057
Person / Time
Site: Prairie Island  Xcel Energy icon.png
Issue date: 01/09/1995
From: Wadley M
NORTHERN STATES POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19311B656 List:
References
NUDOCS 9501130280
Download: ML20077N057 (2)


Text

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Northern States Power Company Prairie island Nuclear Generating Plant 1717 Wakonade Dr. East Welch, Minnesota 55089 I

4 January 9, 1995 10 CFR Part 50 i

Section 50.90 i

U S Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 i

i PRAIRIE ISIAND NUCLEAR GENERATING PLANT Docket Nos. 50-282 License Nos. DPR-42 50-306 DPR-60 License Amendment Request Dated January 9,1995 Incorporation of F* and L* Steam Generator Tube Repair Criteria Attached is a request for a change to the Technical Specifications, Appendix A of the Operating Licenses, for the Prairie Island Nuclear Generating Plant.

j This request is submitted in accordance with the provisions of 10 CFR Part 50, Section 50.90.

l This amendment request proposes a change to Technical Specification (TS) 4.~12,

" Steam Generator Tube Surveillance", to incorporate revised acceptance criteria for steam generator tubes with degradation in the tubesheet roll i

j expansion region. These criteria for steam generator tube acceptance were developed by Westinghouse Electric Corporation and are known as F* ("F-Star")

and L* (J -Star). These criteria will be utilized to avoid unnecessary plugging and sleeving of steam generator tubes.

Exhibit A contains a description of the proposed changes, the reasons for requesting the changes, the supporting safety evaluations and significant hazards determinations.

Exhibit B contains current Prairie Island Technical Specification pages marked up to show the proposed chan5es. Exhibit C contains the revised Technical Specification pages.

Exhibits D and E contain proprietary and non-proprietary versions of Westinghouse Report WCAP 14225, entitled "F* and L* Tube Plugging Criteria for Tubes With Degradation in the Tubesheet Roll Expansion Region of the Prairie Island Units 1 and 2 Steam Generators".

Exhibit F contains the Westinghouse authorization letter, CAW-94-764, accompanying affidavit, Proprietary Information Notice, and Copyright Notice.

QQ Y (, j ATTACHMENT CONTAINS PROPRIETARY INFORMATION TO BE l

p6 WITHHELD FROM PUBLIC DISCLOSURE IN ACCORDANCE fpek WITH in gR PART 2, SECTION 2.790 3

9501130200 950109 j

DR ADOCK 0500 2

I-f USNRC N:rth:rn St:tzs P:wIr C:mp ny l

January 9, 1995 Page 2 As Exhibit D contains information proprietary to Westinghouse Electric l

Corporation, it is supported by an affidavit (Exhibit F) signed by Westinghouse, the owner of the information. The affidavit sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in Paragraph (b)(4) of 10 CFR Section 2.790 of the Cc,mmission's regulations.

l l

Accordingly, it is respectfully requested that the information which is l

proprietary to Westinghouse be withheld from public disclosure in accordance with 10 CFR Part 2, Section 2.790 of the Commission's regulations.

Correspondence with respect to the copyright or proprietary aspects of the j

l reports attached as Exhibits D and E or the supporting Westinghouse Affidavit should reference CAW-93-764 and should be addressed to N.J. Liparulo, Manager i

l of Nuclear Safety & Regulatory Activities. Westinghouse Electric Corporation, l

P.O. Box 355, Pittsburgh, Pennsylvania 15NC-0355.

We request that the proposed license amendment request be issued by May 13, 1995 in order to support the use of the F* and L* criteria during the May 1995 Unit 2 refueling outage.

Please contact Gene Eckholt (612-388-1121, ext 4663) if you have any questions related to this License Amendment Request.

to l

Mike Wadley l

Plant Manager Prairie Island Nuclear Generating Plant c: Regional Administrator-III, NRC NRR Proj ect Manager, NRC Senior Resident Inspector, NRC State of Minnesota (w/o proprietary attachment)

Attn: Kris Sanda J E Silberg (w/o proprietary attachment)

Attachments:

Affidavit i

Exhibit A - Evaluation of Proposed Changes to the Technical Specifications Exhibit B - Proposed Changes Marked Up on Existing Technical Specification Pages Exhibit C - Revised Technical Specification Pages Exhibit D - Proprietary version of WCAP 14225 l

l Exhibit E - Non-proprietary version of WCAP 14225 l

l Exhibit F - Westinghouse authorization letter, CAW-94-764, accompanying l

affidavit, Proprietary Information Notico, and Copyright Notice.

USNRC Ncrthtm St:tts Pawsr CcmpIny January 9, 1995

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Page 2 I

As Exhibit D contains information proprietary to Westinghouse Electric Corporation, it is supported by an affidavit (Exhibit F) signed by Westinghouse, the owner of the information.

The affidavit sets forth the

)

basis on which the information may be withheld from public disclosure by the i

Commission and addresses with specificity the considerations listed in

. Paragraph (b)(4). of 10 CFR Section 2.790 of the Commission's regulations.

]

Accordingly, it is respectfully requested that the information which is proprietary to Westinghouse be withheld from public disclosure in accordrace with 10 CFR Part 2, Section 2.790 of the Commission's regulations.

Correspondence with respect to the copyright or proprietary aspects of the reports attached as Exhibits D and E or the supporting Westinghouse Affidavit should reference CAW-93-764 and should be addressed to N.J. Liparulo, Manager of Nuclear Safety & Regulatory Activities.

Westinghouse Electric Corporation, P.O. Box 355, Pittsburgh, Pennsylvania 15230-0355.

We request that the proposed license amendment request be issued by May 13, 1995 in order to support the use of the F* and L* criteria during the May 1995 Unit 2 refueling outage.

l Please contact Gene Eckholt (612-388-1121, ext 4663) if you have any questions related to this License Amendment Request.

1

/

Y k

Mike Wadley Plant Manager Prairie Island Nuclear Generating Plant c:

Regional Administrator-III, NRC 1

NRR Project Managar, NRC Senior Resident Inspector, NRC State of Minnesota (w/o proprietary attachment)

Attn: Kris Sanda J E Silberg (w/o proprietary attachment)

Attachments:

Affidavit Exhibit A - Evaluation of Proposed Changes to the Technical Specifications Exhibit B - Proposed Changes Marked Up on Existing Technical Specification Pages Exhibit C - Revised Technical Specification Pages Exhibit D - Proprietary version of WCAP 14225 Exhibit E - Non-proprietary version of WCAP 14225 Exhibit F - Westinghouse authorization letter, CAW-94-764, accompanying affidavit, Proprietary Information Notice., and Copyright Notice.