ML20245F723

Environ Assessment & Finding of No Significant Impact Re Schedular Exemptions from 10CFR50,App J

ML20245F723
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	06/23/1989
From:	Stolz J Office of Nuclear Reactor Regulation
To:
Shared Package
ML20245F711	List: ML20245F707 ML20245F723
References
NUDOCS 8906280224
Download: ML20245F723 (3)

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.., 7590-01 UNITEDSTATESNUCLEARREGULATORY[0MMISSION CONNECTICUT YANKEE ATOMIC POWER COMPANY l DOCKET NO. 50-213 1

ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U.S. Nuclear Regulatory Commission (the Comission) is considering l- issuance of schedular and permanent exemptions from the requirements of 10 CFR Part 50, Appendix J 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 schedular exemptions from 10 CFR Part 50, Appendix J .for the requirements of Section III.A.6.(b), Type A test,Section III.D.2(a), Type B test, and Section III.D.3, Type C test. The proposed action is in accordance with the licensee's request for exemption dated April 26, 1989. .

The Need for the Proposed Action:

One of the conditions of all operating licenses for water-cooled power reactors, as specified in 10 CFR 50.54(o), is that primary reactor containments

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shall meet the containment leakage test requirements set forth in 10 CFR Part 50,

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Appent N J. l The licensee has proposed the requested exemptions because performing the Type A, B and C test as required by Appendix J would require a midcycle shutdown.

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8906280224 790621 i PDR ADOCK 05000213 9 P PDR c

Environmental Impacts of the Proposed Action:

The proposed exemption would postpone the Type A test approximately 6 months and the Type B and C test approximately 2 months. The NRC staff has reviewed this proposed exemption and concluded the extension of the test period for the Type A, B and C test will not compromise containment integrity. This conclusion is based, in general, on an aggressive program to limit Type C leakage, the unexpected delay in start-up from the last refueling, extending the refueling cycle length, and that the time for which the containment was actually exposed to normal plant operating environment is less than the recommended Type A B and C test periods.

Thus, radiological releases will not differ from those determined previously and .he proposed exemptions do not otherwise affect' facility radiological effluent or occupational exposures. With regard to potential nonradiological impacts, the proposed exemptions do not affect plant nonradiological effluents and have no other environmental impact. Therefore, the Commission concludes there are no measurable radiological or nonradiological

. environmental impacts associated with the proposed exemptions.

Alternatives to the Proposed Action:

Since the Commission has concluded there is no measurable environmental impact associated with the proposed exemptions, any alternatives with equal or greater environmental impact need not be evaluated. The principal alternative l

to the schedular exemptions would be to deny the exemption requested. Such action would not enhance the protection of the environment and would result in unjustified costs for the licensee.

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Alternative Use of Resources:

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

Agencies and Persons Consulted: o The NRC staff reviewed the licensee's request and did not consult other agencies or persons.

FINDING OF NO SIGNIFICANT IMPACT Based upon the environmental assessment, the Commission concludes that the proposed action will not have a significant effect on the quality of the human environment. Accordingly, the Commission has determined not to prepare an environmental impact statement for the proposed exemptions.

For further details with respect to this proposed action, see the licensee's letter dated April 25, 1989. This letter is available for public inspection at the Commission's Public Document Room, the Gelman Building, 2120 L Street, N.W., Washington, D.C., and at the Russell Library,123 Broad Street, Middletown, Connecticut 06547.

Dated at Rockville, Maryland this 23rd day of June, 1989.

FOR THE NUCLEAR REGULATORY COMMISSION l

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l oh F. Stolz Directo7 Pr ect Directorate I

! vision of Reactor Projects I/II Office of Nuclear Reactor Regulatory l

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