ML20056B467

Environ Assessment & Finding of No Significant Impact Supporting Proposed Exemption to 10CFR50.47 & 10CFR50,App E

ML20056B467
Person / Time
Site:	Rancho Seco
Issue date:	08/22/1990
From:	Larkins J, Reynolds S Office of Nuclear Reactor Regulation
To:
Shared Package
ML20056B463	List: ML20056B462 ML20056B467
References
NUDOCS 9008280323
Download: ML20056B467 (3)

Text

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g 7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION SACRAMENTO MUNICIPAL UTILITY DISTRICT DOCKET NO. 50-312 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U. S. Nuclear Regulatory Commission (the Commission) is considering issuance of an exemption to Facility Operating License No. DPR-54 issued to the Sacramento Municipal Utility District (the licensee), for operation of the Rancho Seco Nuclear Generating Station, located in Sacramento County, California, i

ENVIRONMENTAL ASSESSMENT t

Identification of Proposed Action The proposed exemption, from 10 CFR 50.47 and Appendix E to 10 CFR Part 50, wouldrelievethelicenseefromtherequirementsto(1)conductbiennial offsite full participation emergency preparedness exercises, (2) test the emergency siren system and (3) disseminate offsite emergency related public information.

The Need for the Proposed Action The proposed exemption would reduce licensee expenditures and preserve the resources of local, state, and Federal organizations that participate in offsite emergency exercises. At the present time the Rancho Seco reactor is defueled. The postulated offsite emergencies that necessitate participation

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by the offsite emergency organizations and require action by the general public are based on emergency scenarios associated with power operations.

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licensee has defueled the reactor and intends to decommission the Rancho Seco nuclear facility.

Based on the existing conditions at the site and on the proposed site disposition, the emergency preparedness requirements identified above do not warrant the associated expenditure of resources.

Should the licensee decide to activate the site as a nuclear power station in the future, the emergency preparedness qualifications would need to be reinstated as a prerequisite.

Environmental Impact of the Proposed Action The proposed action would not involve a significant change in the probability or consequences of any accident previously evaluated, nor does it involve a new or different kind of accident.

Consequently, any radiological releases resulting fror an accident would not be significantly greater than that previously determined. The proposed execiption does not otherwise affect routine radiological plant effluents. Therefore, the Comission concludes that there are no significant radiological environmental impacts associa'ted with the proposed exemption. The Comission also concludes that the proposed action will not result in a significant increase in individual or cumulative occupational radiation exposure.

With regard to nonradiological impacts, the proposed exemption does not affect nonradiological plant effluents and have no other environmental impact.

Therefore, the Comission concludes that there are no significant nonradiological environmental impacts associated with the proposed exemption.

Alternative to the Proposed Action Since the Comission concluded that there are no significant environmental effects that would result from the proposed action, any alternatives with equal or greater environmental impacts need not be evaluated.

The principal alternative would be to deny the requested exemption.

This

a would not reduce environmental impacts associated with present level of plant activities.

Alternative Use of Resources This action does not involve the use of resources not previously considered in connection with the Final Environmental Statement related to the operation of the Rancho Seco Nuclear Generating Station, dated March 1973.

Agencies and Persons Consulted The NRC staff reviewed the licensee's request that supports the proposed exemption, and did not consult other agencies or persons.

FINDING OF NO SIGNIFICANT IMPACT The Comission has determined not to prepare an environmental impact statement for the proposed exemption.

Based upon the foregoing environmental assessment, we conclude that the proposed action vill not have a significant effect on the quality of the human environment.

For further details with respect to this action, see the application for exemption dated July 24, 1990, which is available for public inspection at the Commission's Public Document Room, 2120 L Street, N. W., Washington, D. C.

20555, and at The Martin Luther King Regional Library, 7340 24th Street Bypass, Sacramento, California 95822.

Dated at Rockville, Maryland, this 22 day of August 1990.

FOR THE NUCLEAR REGULATORY COMMISSION John T. Larkins, Acting Director Project Directorate Y Division of Reactor Projects - III, IV, Y and Special Projects Office of Nuclear Reactor Regulation