ML19260B511

Forwards Proposed Automatic Initiation Scheme for Auxiliary Feedwater Sys, in Response to NRC Request for Specific Design Details & Demonstration of Compliance W/Hr Denton

ML19260B511
Person / Time
Site:	Haddam Neck, Millstone  File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	12/06/1979
From:	Counsil W NORTHEAST UTILITIES
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML19260B512	List: ML19260B511 ML19260B517
References
TASK-10, TASK-RR TAC-42410, TAC-44705, TAC-44746, NUDOCS 7912100284
Download: ML19260B511 (2)

Text

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P.O Box 270

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December 6,1979 Docket Nos. 50-213 50-336 Office of Nuclear Reacter Regulation Attn:

Mr. H. Denton, Director U. S. Nuclear Regulatory Commission Washington, D. C.

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References:

(1)

W. G. Counsil letter to J. Hendrie dated November 30, 1979.

(2)

H. R. Denton letter to All Operating Nuclear Power Plants dated October 30, 1979.

Gentlemen:

Haddam Neck Plant Millstone Nuclear Power Station, Unit No. 2 Automatic Initiation of Auxiliary Feedwater in Reference (1), Connecticut Yankee Atomic Power Compa..y (CYAPCO) and Northeast Nuclear Energy Company (NNECO) provided a comprehensive description of the evolu-tion of the NRC Staf f requirement to automate the auxiliary feedwater system, and the status of the implementation effort at the Haddam Neck Plant and Millstone Unit No. 2.

Subsequent telephone conversations with the Staff have resulted in a Staf f request for specific design details, and demonstration of compliance with each of the clarification points provided in Reference (2).

In response to that verbal request, Attachments (1) and (2), Proposed Automatic Initiation Scheme of Auxiliary Feedwater Systems, are provided for the Haddam Neck Plant and Millstone Unit No. 2, respectively.

As explicitly stated in Reference (1) and emphasized in recent verbal communica-tions with the Staf f, CYAPCO and NNECO have been intensively designing and engineering a scheme to comply with the Staff requirement since its initial promulga tion.

Attachments (1) and (2) provide documentation to that effect.

Equipment has been ordered in an attempt to comply with the schedule of Reference (2). These ef forts have been and are continuing on a priority basis, -

the evaluations and determinations of Reference (1) notwithstanding.

As noted in Ref erence (1), final implementation of these designs is prohibited without documented Staff approval.

1521 322 7912100 M

. We trust the attached information facilitates your review of the issues identified in Reference (1).

Very truly yours, CONNECTICUT YANKEE ATOMIC POWER COMPANY NORTHEAST NUCLEAR ENERGY COMPANY f

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['}hL W./G. Couns'il Vice President Attachment 1521 323