ML20205N131

Environ Assessment & Finding of No Significant Impact Re Util 860307 Request for Schedular Exemption from Fire Protection Requirements of App R to 10CFR50.48(c).Proposed Action Will Have No Effect on Quality of Human Environ

ML20205N131
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	04/28/1986
From:	Charemagne Grimes Office of Nuclear Reactor Regulation
To:
Shared Package
ML20205N129	List: ML20205N124 ML20205N131
References
NUDOCS 8605010494
Download: ML20205N131 (3)

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O UNITED STATES NUCLEAR REGULATORY COMMISSION CONNECTICUT YANKEE ATOMIC POWER COMPANY DOCKET N0. 50-213 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U.S. Nuclear Regulatory Commission (the Commission) is considering issuance of a schedular exemption from the requirements of 10 CFR 50.48 to the Connecticut Yankee Atomic Power Company (CYAPC0 or the licensee) for the Haddam Neck Plant, located at the licensee's site in Middlesex County, Connecticut.

ENVIRONMENTAL ASSESSMENT Identification of the Proposed Action The proposed action would grant a schedular exemption from requirements of 10 CFR 50.48 relating to the completion date for the construction of an additional switchgear room and its related modifications. These modifications were determined by the licensee to be necessary at Haddam Neck to meet the requirements of Section III.G. of Appendix R.

The Need for the Proposed Action By letter dated July 16, 1982, CYAPC0 originally proposed specific rr.odifications which required an exemption from the requirements of Appendix R, for the existing switchgear room. These modifications were subsequently approved and the exemption granted in a November 1984 safety evaluation report (SER). Completion of the modifications was to be accomplished according l

to the schedules identified in 10 CFR 50.48(c). For the Haddam Neck Plant, I this date was by start-up from the 1986 refueling outage. Subsequently, the licensee concluded that the proposed modifications to the existing switchgear room could not be implemented. Therefore, the licensee proposed to construct

a new power distribution system for one train of safe-shutdown equipment in a new switchgear room. The magnitude of the work associated with the construction of an additional switchgear room is such that it does not allow the 10 CFR 50.48(c) schedule to be met.

The exemption is strictly schedular in that it allows the modification schedule to be extended, with interim compensatory measures in place which will provide the necessary fire protection, until the corresponding modification is completed.

8605010494 e60428 PDR ADOCK 05000213 F PDR

Environmental Impact of the Proposed Action The proposed action only affects the length of time for the required modifications to be completed. The licensee has proposed interim compensatory measures to provide the necessary level of fire protection until the l modifications are completed. Thus, fire-related radiological releases will not differ from those determined previously and the proposed exemption does not otherwise affect facility radiological effluent or occupational exposures.

With regard to potential nonradiological impacts, the proposed exemption does not affect plant nonradiological effluents and has no other environmental impact. Therefore, the Commission concludes there are no measurable radiological or nonradiological environmental impacts associated with the proposed exemption.

Alternatives to the Proposed Action: \

Since the Commission has concluded there is no measurable environmental impact associated with the proposed exemption, any alternatives with equal or greater environmental impact need not be evaluated. The principal alternatives to the exemption would be to impose a shorter extension I,eriod than requested. Such action would not enhance the protection of the environment and would result in unjustified costs for the licensee.

Alternative Use of Resources:

This action does not involve the use of resources not considered I previously in the Final Environmental Statement for Haddam Neck.

Agencies and Persons Consulted:

The NRC staff reviewed the licensee's request and did not consult other agencies or persons.

FINDING OF N0 SIGNIFICANT IMPACT The Comission has determined not to prepare an environmental impact statement for the proposed exemption. Based upon the environmental assessment, the NRC staff concludes that the proposed action will not have a significant effect on the quality of the human environment.

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j For further details with respect to this proposed action, see the licensee's letter dated March 7,1986, as supplemented by letter dated April 8, 1986. These letters are available for public inspection at the Commission's Public Document Room, 1717 H Street, N.W., Washington, D.C.

and at the Russell Library, 123 Broad Street, Middletown, Connecticut 06547.

Dated at Bethesda, Maryland this 28th day of April 1986.

FOR THE NUCLEAR REGULATORY COMMISSION WTgh 1. ionA Christopher I. Grimes, Director Integrated Safety Assessment Project Directorate Division of PWR Licensing - B l

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