ML20002A926

Application for Proposed Change 93 to License DPR-28, Changing App a Tech Specs to Reflect Revised Reactor Vessel Water Level Setpoint Scale Values & Provide Common Ref for Vessel Level Instrumentation.Class II Fee Encl

ML20002A926
Person / Time
Site:	Vermont Yankee
Issue date:	12/01/1980
From:	Groce R VERMONT YANKEE NUCLEAR POWER CORP.
To:	Office of Nuclear Reactor Regulation
Shared Package
ML20002A927	List: ML20002A926 ML20002A930
References
WVY-80-166, NUDOCS 8012090190
Download: ML20002A926 (2)

Text

Proposed Change No. 93 l l

N3 VERMONT Y AN KEE NUCLEAR POWER COR PORATION p) SEVENTY SEVEN GROVE STREET

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II December 1, 1980 United States Nuclear Regulatory Commission Washineton, D. C. 20555 Attention: Office of Nuclear Reactor Regulation

References:

(a) License No. DPR-28 (Docket No. 50-271)

(b) USNRC Letter to All Operating Reactor Licensees dated May 7, 1980 (c) VYNPC Letter (WVY 80-145) to USNRC dated October 10, 1980

Subject:

Common Reference Level For Reactor Vessel Level Instrumentation

Dear Sir:

Pursuant to Section 50.59 of the Commission's Rules and Regulations, Vermont Yankee Nuclear Power Corporation hereby proposes the following changes to Appendix A of the Operating License.

PROPOSED CHANGE:

Changes to pages 7, 12, 19, 21, 35, 36, 38 39a, 41, 42, 62 and 63 of the Vermont Yankee Technical Specification are being proposed to reflect changes in reactor vessel water level setpoint scale values which would be caussd by providing a common reference for vessel level instrumentation. Revised pages are included as an attachment to this letter.

REASON AND BASES FOR CHANGE:

By letter, Reference (b), the NRC required all Boiling Water Reactor Licensees to provide a common reference for vessel level instrument:ition. Reference (c) transmitted Vermont Yankee's plans regarding this item. Reference to a common level within the reactor vessel will provide the operator with a clear indication of water inventory within the core.

SAFETY CONSIDERATIONS:

Implementation of the changes proposed in the attached pages will not effect the operation of level instrumentation or their setpoints. Upon completion of

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- United States Nuclear Regulatory Commission December 1, 1980 Office of Luclear Reactor Regulation Page 2 l

a comprehs;nsive, administrative program which includes procedure revision, hardwan (scale) changes and operator retraining, the station operators will benefit by having a common reference for reactor vessel level instrumentation.

It has been concluded that this change does not present significant hazards not described or implicit in the safety aralysis report and does not involve an unreviewed safety question as described in 10CFR50.59.

This proposed change has been reviewed by the Vermont Yankee Nuclear Safety Audit and Review Committee.

FEE DETERMINATION:

This proposed change is pro forma, administrative in nature and has no safety or environmental significance. For these reasons, Vermont Yankee Nuclear Power Corporation proposes this change as a Class II Amendment and a payment of $1,200.00 is enclosed.

SC11E d j OF CHANGE:

The proposed changes will be incorporated into the Technical Specifications as soon as practical following receipt of your approval.

We trust this submit'.a1 is acceptable to you; however, should you have any questions, please contact us.

Very truly yours, VERMONT YANKEE NUCLEAR POWER CORPORATION L. II. Heider Vice President Enclosure COMMONWEALTil 0F MASSACHUSETTS)

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Then personally appeared before me, L. H. Heider, who, being duly sworn, did state that he is a Vice President of Vermont Yankee Nuclear Power Corporation, that he is duly authorized to execute and file the foregoing request in the name and on the behalf of Vermont Yankee Nuclear Power Corporation, and that the statements therein are true to the best of his knowledge and belief.

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/ Robert H. Groce Notary Public

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