ML20099K508

Application to Amend License DPR-22,changing Tech Spec to Allow Operation at Substantial Power Level W/One Recirculation Pump in Operation & Equalizer Valve Closed

ML20099K508
Person / Time
Site:	Monticello, 05000000
Issue date:	09/07/1976
From:	Wachter L NORTHERN STATES POWER CO.
To:
Shared Package
ML20099K024	List: ML20099K053 ML20099K111 ML20099K116 ML20099K155 ML20099K172 ML20099K232 ML20099K268 ML20099K308 ML20099K324 ML20099K349 ML20099K371 ML20099K494 ML20099K508 ML20099K512 ML20099K542 ML20099K556 ML20099K559
References
FOIA-84-105 NUDOCS 8411290452
Download: ML20099K508 (4)

Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION NORTHERN STATES POWER COMPANY MONTICELLO NUCLEAR GENERATING PIANT Docket No. 50- 263 REQUEST FOR AMENIRISI TO OPERATING LICENSE ' C. OtR- 22 (License Amendment Request Dated September 7, .~~E i

Northern States Power Company, a Minnesota :c.poration, requests authorization for changes to the Technical Specifications as shown on the attachments labeled Exhibit A and Exhibit B. Exhibit A describes the proposed changes along with reasons for the change. Exhibit B is a set of Technical Specification pages incorporating the proposed changes.

This request contains no restricted or other .efense information.

NORTHERh STATES POWER COMPANY By /s/ L J Wachter L J Wachter Vice Presicant, Power Production &

System Operation j On this 7th day of September , 1976 , before me a notary public in and for said County, personally appeared L J Wachter, " ice President, Power Production & System Operation, and first being duly sworn acknowledged that he is authorized to execute this document in behalf of Northern States Power Company, that he knows the contents thereof and that to the best of his knowledge, informacien and belied, the statements made in it are true and that it is not interposed for delay I

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/s/ Denise E Branau Denise E Branau Notary Public, Hennepin County, Minnesota My Cotanission Expires October 10, 1981 .

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l 8411290452 840419 l PDR FOIA BELL 84-105 PDR

. t EXHIBIT A MONTICELIA NUCLEAR GENERATING PIANT DOCKET NO. 50-263 LICENSE AMENDMENT REQUEST DATED SEPTEMBER 7, 1976 PROPOSED CHANGES TO TECHNICAL SPECIFICATICN3 APPENDIX A 0F PROVISIONAL 0?ERAIING LICENSE NO. DFB .

Pursuant to 10CFR 50.59, the holders of provisivta. ,_cating license D?R-22 hereby propose the following changes to Appendix A Techta . 3pecifications:  ;

Proposed Changes Incorporate the changes as indicated in the propcss . svised pages submitted as Exhibit B.

Reason for Changes ,

These proposed changes are generally additions to the existing Technical Specif t-cations which are associated with a mode of operatter .nvolving only one reactor recirculation pump with the equalizer valves closed. It is desirable to have provisions for this mode of operation because reacect operation can safely con-tinue at a substantial power level when equipment cutages exist. The plant was initially designed and licensed to allow operation with only one recirculation pump. The July 9, 1975 ECCS analysis did not address one-pump operation in sufficient detail such that it was restricted by the subsequent License Amendment.

An in-depth analysis has now been completed and neu, conservative limi:s are proposed such that the flexibility of one-pu=p cperation can be restored.

Three aspects of these changes not directly related to the one-pump analysis and the reasons for change are discussed individually as follows:

Jage 20. Bases - The first complete paragraph on this page is proposed to ie replaced. The existing paragraph is part of the initial plant analysis which was made obsolete by the ECCS Interim Acceptance Criteria analysis and never updated. It is presently inconsistent with Specification 3.5.I.

Page 108A TS 3.5.I.3 - This entire Specification is proposed to be replaced. The first sentence of the existing Specifica-tion is redundant to Specificatiorm 3.5.I.1 and 2 and therefore unnecessary. The intent of the second sentence has been incorporated into the proposed Specification.

Page 108A TS 4.5.I.1 - The spelling of the word " cross" is corrected. *

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Safety Evaluation The safety evaluation in support of the proposed changes is included as Exhibit C entitled, " License Amendment Submittal for Single-Loop Operation, Monticello Nuclear Generating Plant Unic I,NEDO-21252".

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. s EXHIBIT B LICENSE AENDMENT REQUEST DATED SEPTEM3ER 7.1976 Exhibit B, attached, consists of :he follwing revised pages of the Appendix A Technical Specificati > c .. ~..~ - -+-

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