ML112970852

to 760907 Application for Amend to License DPR-22,changing Tech Spec to Allow Plant to Remain at Substantial Power Level W/One Recirculation Pump in Operation & Equalizer Valve Closed

ML112970852
Person / Time
Site:	Monticello
Issue date:	07/02/1982
From:	Musolf D Northern States Power Co
To:
Shared Package
ML112970851	List: ML112970850 ML112970852 ML112970853 ML20063E332
References
NUDOCS 8207130382
Download: ML112970852 (3)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION NORTHERN STATES POWER COMPANY MONTICELLO NUCLEAR GENERATING PLANT Docket No. 50-263 REQUEST FOR AMENDMENT TO OPERATING LICENSE NO. DPR-22 Revision I to License Amendment Request Dated September 7, 1976 Northern States Power Company, a Minnesota corporation, request 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. Exhibit C is the Analysis report which supports the change.

This request contains no restricted or other defense information.

NORTHERN STATES POWER COMPANY By D M Musolf Acting Head-Nuclear Support Serv ces On this day of < before me a notary public in and for said County, personally dpe4ed D M Musolf Acting Head-Nuclear Support Services, and being first duly sworn acknowledged that he is authorized to execute this document on behalf of Northern States Power Company, that he knows the contents thereof and that to the best of his knowledge, information and belief, the statements made in it are true and that it is not interposed for delay.

BETTY .0EAN N~4OARY PUBLCI MilESOTA 3~~'$AMSEY COUNTY C1987 8207130392 820702 PDR ADOCK 05000263 P PDR

EXHIBIT A Monticello Nuclear Generating Plant Docket No. 50-263 Revision 1 to License Amendment Requested dated September 7, 1976 Proposed Changes to Technical Specification Appendix A of Operating License No. DPR-22 Pursuant to 10 CFR 50.59 and 50.90, the holders of Operating License DPR-22 hereby proposed the following changes to Appendix A, Technical Specifications.

1. Pages 6, 7, 8 of Section 2.1; Pages 17 and 20 of the Section 2.3 Bases; Pages 56 and 57 of Section 3.2/4.2; Pages 114 and 114a of Section 3.5/4.5; Page 119 of the Section 3.5 Bases; Pages 211, 213 and 214 of Section 3.11; Page 215, 216 and 217 of the Section 3.11/4.11 Bases PROPOSED CHANGES Incorporate the changes as indicated in the proposed revised pages submitted as Exhibit B.

REASON FOR CHANGE These proposed changes are additions to the existing Technical Specifi cations which are associated with a mode of operation involving only one reactor recirculation pump with the equalizer valves closed. It is desirable to have provisions for this mode of operation because reactor operation can safely continue at a substantial power level when equip ment outages exist. The plant was initially designed and license to allow operation with only one recirculation pump. An in-depth analysis has now been completed and new, conservative limits are proposed such that the flexibility of one-pump operation can be restored.

SAFETY EVALUATION The safety evaluations in support of the proposed changes are included as Exhibit C entitled, "Monticello Nuclear Generating Plant Single-Loop Operation, NEDO-24271."

I I

2. Pages 14 and 15 of the Section 2.3 Bases and Page 20 of the Section 2.3 Bases PROPOSED CHANGE Delete the third paragraph on page 14 and revise the second paragraph as shown in Exhibit B. Delete the first two paragraphs on page 15.

REASON FOR CHANGE A discussion of the conservatisms and methodology in the analyses is contained in reference (1). To eliminate confusion and possible conflicts the detailed discussion in the bases should be deleted.

SAFETY EVALUATION This change does not affect the commitments required by the Technical Specifications.