ML20085N085

Forwards Application for Amend to License DPR-22,revising TS to Support Implementation of BWR Thermal Hydraulic Stability Solution,Per 940909 Response to GL 94-02.GE Proprietary Rept GENE-637-043-0295 Also Encl.Ge Rept Withheld Per 10CFR2.7

ML20085N085
Person / Time
Site:	Monticello
Issue date:	06/22/1995
From:	Hill W NORTHERN STATES POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19330G080	List: ML20085N085 ML20085N092 ML20085N099
References
GL-94-02, GL-94-2, NUDOCS 9506300043
Download: ML20085N085 (4)

Text

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Northem States Power Company Monticello Nuclear Generating Plant 2807 West Hwy 75 Monticello, Minnesota 55362-9637 June 22,1995 l 10 CFR Part 50 Section 50.90 U S Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT l Docket No. 50-263 License No. DPR-22 License Amendment Request Dated June 22,1995 Technical Specification Changes to Support implementation of BWR Thermal Hydraulic Stability Solution Attached is a request for a change in the Technical Specifications, Appendix A of the i Operating License for the Monticello Nuclear Generating Plant. This request is submitted in 1 accordance with the provisions of 10 CFR Part 50, Section 50.90.

i The proposed changes provide the requirements for avoidance and protection from thermal l hydraulic instabilities to be consistent with BWROG long term solution Option 1-D described in NEDO-31960 and NEDO-31960 Supplement 1, BWR Owner's Group Long Term Stability  !

Snlution Licensing Methodology". Exhibit A contains a description of the proposed changes, the reasons for requesting the changes, a Safety Evaluation, a Determination of Significant ,

Hazards Consideration, and an Environmental Assessment. Exhibit B contains the current '

Technical Specification pages marked up with the proposed changes. Exhibit C contains revised Monticello Technical Specification pages.

By letter dated September 9,1994, from William J Hill to USNRC, with subject Response to NRC Generic Letter 94-02, "Long-Term Solutions and Upgrade of Interim Operating i Recommendation for Thermal-Hydraulic Instabilities in Boiling Water Reactors", Monticello committes to submit a plant specific topical report demonstrating applicability of solution option 1-D as well as an implementation schedule for solution option 1-D. Enclosed with this submittalis GENE-637-043-0295, Application of the "Reaional Exclusion with Flow-Biased APRM Neutron Flux Scram" Stability Solution (Option 1-D) to the Monticello Nuclear Power Plant. which provides the plant specific licensing topical report. This report contains  ;

information proprietary to the General Electric Company. The required affidavit, per 10 CFR

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2.790, requesting that report GENE-637-043-0295 be withheld from public disclosure is i provided. Attachment 1 provides our implementation schedule for solution option 1-D.

In our September 9,1994 correspondence, referenced above, Monticello committed to the following action: l 6/14/95 NSP H \ DATA \LAR\STABILIT.1AR r, rs e .~ n LVGNI '

9506300043 950622 PDR ADOCK 05000263 L

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USNRC' NORTHERN STATES POWER COMPANY .-

June 22,'.1995 l)

Page 2

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. i Operating procedures will be revised and operating training provided prior to the end of l 1994 to require initiating a manual scram under all circumstances in which there are no  !

recirculation pumps operating while the reactor is in the RUN mode.

This action was reported as complete by letter dated November 17,1994, from William J Hill to USNRC. Approval of the changes to the Technical Specifications, Appendix A of the Operating License for the Monticello Nuclear Generating Plant, proposed in the attached exhibits will supersede this previous commitment.

Monticello is working with the BWR Owners' Group to provide additional enhancements to the - ,

long-term stability solution. Monticello is monitoring the progress being made to obtain NRC i approval of NEDO-32465, "BWR Owner's Group Reactor Stability Detect and Suppress i' Solutions, Licensing Basis Methodology for Reload Applications." Based on NRC approval of NEDO-32465, Monticello intends to incorporate this methodology into our plant specific topical ,

report for the exclusion region boundary calculation methodology to be submitted  ;

approximately Jur.e of 1996. j Please contact Marvin Engen, Sr Licensing Engineer, (612-295-1291) if you require further .

information related to this request. j r

h h *7 William J Hill Plant Manager  !

Menticello Nuclear Generating Plant l l

c: Regional Administrator-Ill, NRC NRR Project Manager, NRC  !

Resident inspector, NRC  !

State of Minnesota  ;

Attn: Kris Sanda l r

. Attachments: Attachment 1 - Monticello Schedule for implementation of Stability Solution i Option 1-D NSP Affidavit to the US Nuclear Regulatory Commission  ;

GE Affidavit to the US Nuclear Regulatory Commission  ;

Exhibit A - Evaluation of Proposed Changes .

.1 Exhibit B - Technical Specification Pages marked up with proposed change

- Exhibit C - Revised Monticello Technical Specification Pages j

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USNRC NORTHERN STATES POWER COMPANY June 22,1995 Page 3 i

Enclosure:

GENE-637-043-0295, Application of the " Regional Exclusion with Flow-Biased [

APRM Neutron Flux Scram" Stability Solution (Option 1-D) to the Monticello .

Nuclear Power Plant l i

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Attachment 1 - .j i

Monticello Schedule for implementation of Stability Solution Option 1-D~ '!

6/95 - Montice'llo Submittal of Plant Specific Licensing Topical Report and Proposed -

Technical Specification Changes for Stability Solution Option 1-D 4/96 NRC Approval of Monticello Proposed Technical Specification Changes 4/96 Monticello Refueling Outage 7/96 Monticello implementation of SOLOMON stability monitor with 5% exclusion region buffer j

'6/96 Monticello Submittal of Licensing Topical Report for Exclusion Region Boundary Calculation Methodology 4/97 NRC approval of Monticello Licensing Topical Report for Exclusion Region -

Boundary Calculation Methodology to support cycle 19 final reload design  :

review l