ML20087J416

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Forwards LAR to License DPR-22,revising Max Individual MSIV Leak Rate Acceptance Criteria of 11.5 Scfh to Overall Criteria That Encompasses Four Main Steam Lines Into One Limit of 46 Scfh
ML20087J416
Person / Time
Site: Monticello 
Issue date: 08/15/1995
From: Hill W
NORTHERN STATES POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20087J418 List:
References
NUDOCS 9508210141
Download: ML20087J416 (3)


Text

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6 Northem States Power Company

-j Monticeno Nuclear Generating Plant 2807 West Hwy 75 Monticello, Minnesota 55362-9637 August 15,1995 -

U S Nuclear Regulatory Commission 10 CFR Part 50 Attn: Document Control Desk Section 50.90 Washington, DC 20555 MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 License Amendment Request Dated August 15,1995 Main Steam isolation Valve and Appendix J Leak Test Reouirements Attached is a three part request for an amendment to the Technical Specifications, Appendix A of the Operating License for the Monticello Nuclear Generating Plant. This request is submitted in accordance with the provisions of 10 CFR Part 50, Section 50.90.

Part 1; The maximum individual MSIV leak rate acceptance criteria of 11.5 scfh is proposed to be revised into an overall criteria that encompasses all four main steam lines into one limit of 46 scfh. Since overall leakage would not be increased, the proposed amendment has no -

significant impact on the consequences of previously analyzed accidents.

Part 2; Changes sections 4.5.C.3 and 3/4.7.a.2 by adopting wording for drywell spray headers and nozzles that is consistent with the requirements of the BWR-4 Improved Standard Technical Specifications (NUREG-1433, Rev.1) revising the testing interval from 5 to 10 years.

Part 3; information specific to the primary containment leak rate testing program is being removed and replaced with statements to abide by the requirements of Appendix J of 10 CFR Part 50.

Exhibit A contains a description of the proposed changes, the reasons for requesting the changes, Safety Evaluations, and a Determination of Significant Hazards Consideration, and Environmental Assessment. Exhibit B contains the current Technical Specification pages marked up with the proposed change. Exhibit C contains revised Monticello Technical Specification pages.

This change is proposed as a Cost Beneficial Licensing Action (CBLA). Revising the leakage acceptance criteria will result in a reduction in MSIV repairs and refurbishment costs, reduce dose exposure to maintenance personnel, reduce outage duration's, and extend the effective service life of the MSIV's. Extending the drywell spray nozzle test interval will reduce associated labor and reduce doses as will revising the Appendix J leakage test requirements.

' 100 h; 9508210141 950915 PDR ADOCK 05000263

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USNRC NORTHERN STATES POWER COMPANY August 15,1995 Page 2 1

This submittal contains no new NRC commitments, nor does it modify any prior commitments.

l Please contact Sam Shirey, Sr Licensing Engineer, at (612) 295-1449 if you require additional information related to this request.

h l b ers b N

William J Hill Plant Manager Monticello Nuclear Generating Plant c:

Regional Administrator-Ill, NRC I

NRR Project Manager, NRC Resident inspector, NRC State of Minnesota i

Attn: Kris Sanda J Silberg Attachments: Affidavit to the US Nuclear Regulatory Commission l

Exhibit A - Evaluation of Proposed Change i

Exhibit B -

Technical Specification pages marked up with proposed change

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Exhibit C - Revised Monticello Technical Specification Pages

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X TRANSMITTAL VIANIFEST l

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NORTHERN STATES POWER COMPANY

~ NUCLEAR LICENSING DEPARTMENT

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- MONTICELLO NUCLEAR GENERATING PLANT -

License Amendment Request Dated August 15,1995 Main Steam isolation Valve and Appendix J Leak Test Reauirements

- Manifest Date:

August 15,1995

~l Correspondence Date: August 15,1995 l1 Monticello Intemal Site Distribution Special Instructions Kcleen Hilsenhoff.....USAR File...-............Yes No_x_.

' Steve Ludders.........NRC Commitment....Yes No_x_

Lila imholte............... Monti OC Sec..........Yes No_x_ - 11, No dist to OC members below if YES

- Mel Opstad.............Monti SAC Sec..........Yes No_x_ - 5 1

  • Mail Room...........Monti Posting.........Yes No_x_ - 7 Monticello Intemal Site Distribution:
  • Monti Document Control File Monti Site Lie File Al Wojchouski NRC Resident inspector's Office a

Pat Tobin Lic History File Dave Pennington NSP Intemal Distribution R O Anderson, Dir LMI, SAC Communications Dept Yes No_x_

Extemal NSP Distribution

  • Doc Control Desk, NRC Kris Sanda, State of Minn.

~ Regional Admin-lll,NRC

. J E Silberg

- T J Kim, NRR-PM, NRC

  • Advance Distributico made by Site Licensing i