ML19210C634

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Responds to 790512 Ltr Re Resolution of Cycle 3 Startup Commitments.Forwards Rept, Evaluation of Neutron Shield Effectiveness.
ML19210C634
Person / Time
Site: Millstone Dominion icon.png
Issue date: 11/09/1979
From: Counsil W
NORTHEAST UTILITIES
To: Reid R
Office of Nuclear Reactor Regulation
Shared Package
ML19210C636 List:
References
TAC-11348, TAC-11561, TAC-12505, TAC-42846, NUDOCS 7911190267
Download: ML19210C634 (1)


Text

. i. s NORTHEAST IFFII. FRIES

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."2':'~~ am) ess-sen L L J :::.1::"!: Z = lll' r November 9, 1979 Docket No. 50-336 Director of Nuclear Reactor Regulation Attn: Mr. R. Reid, Chief Operating Reactors Branch #4 U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Reference:

(1) R. Reid letter to W. G. Counsil dated May 12, 1979.

Gentlemen:

Millstone Nuclear Power Station, Unit No. 2 Resolution of Cycle 3 Startup Commitments In Reference (1), the NRC Staff issued License Amendment No. 52 and the supporting Safety Evaluation to Facility Operating License No. DPR-65, for Millstone Unit No. 2. Documented in Reference (1) were commitments for Northeast Nuclear Energy Company (NNECO) to:

(1) Provide an assessment of the neutron dose rate reduction and actual man-rea exposure savings experienced during Cycle 3 operation with the neutron shield installed in the area of the reactor cavity.

(2) Replace the Stem Mounted Limit Switches (SMLS) on Valves SI-614, 624, 634, and 644 during the first unscheduled cold shutdown after September 15, 1979.

In response to Item (1) above, NNECO hereby submits the attached report,

" Evaluation of Neutron Shield Effectiveness. In fulfillment of Item (2) above, please be advised that the SMLS on Valves SI-614, 624, 634, and 644 have been replaced with environmentally qualified switches.

NNECO trusts you find this information sufficient to resolve the noted Reference (1) concerns.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY

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W. G. Counsil Vice President MhM[

Attachment 7911190 267 M

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