ML20128C010
| ML20128C010 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 05/13/1985 |
| From: | Lainas G Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20128B981 | List: |
| References | |
| NUDOCS 8505280143 | |
| Download: ML20128C010 (3) | |
Text
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7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION IOWA ELECTRIC LIGHT AND POWER COMPANY
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DOCKET NO. 50-331 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U. S. Nuclear Regulatory Commission (the Commission) is considering issuance of an exemption from the requirements of 10 CFR 50, Appendix R, Section III.J to Iowa Electric Light and Power Company (the licensee), for the Duane Arnold Energy Center (DAEC), located in Linn County, Iowa.
ENVIRONMENTAL ASSESSMENT Identification of Proposed Action: The exemption would relax the requirements that Oe emergency lighting units with at least 8-hour battery power supply be provided for all areas needed for operation of the safe shutdown equipment. As a result of an internal review, the licensee found that it could not assure a battery power source to be available after a l fire for more that 90 minutes. The licensee h'as, therefore, requested an
, exemption to permit the use of Divisions I and II diesels to supply power l
to the fire emergency lighting system and for safe shutdown after a fire.
l-l The Need for the Proposed Action: The proposed exemption is needed because L
l the proposed use of the Divisions I and II diesel generators for safe
( shutdown facility lighting for the DAEC facility, as described in the i
licensee's request, represent the most practical method for meeting the intent of Appendix R. Literal compliance would not significantly enhance the fire protection capability.
8505280143 050513 PDR ADOCK 05000331 F PDR i
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Environmental Impacts of the Proposed Action: The proposed exemption will provide lighting in the emergency situation equivalent to that provided by Appendix R for the safe shutdown of the DAEC facility in the event of a fire. Consequently, the probability of the post-fire radiological releases will not be greater than previously determined nor does the proposed exemption otherwise affect radiological plant effluents. Therefore, the Commission concludes that there are no significant radiological environmental impacts associated with this proposed exemption.
With regard to potential non-radiological impacts, the proposed exemption involves features located entirely within the restricted area as defined in 10 CFR Part 20. It does not affect non-radiological plant effluents and has no other environmental impact. Therefore, the Comission concludes that there are no significant non-radiological environmental impacts associated with the proposed exemption. <
ATternative Use of Resources: This action involves no use of resources not previously considered in the Final Environmental Statement dated March 1973 for the Duane Arnold Energy Center.
Agencies and Persons Consulted: The NRC staff reviewed the licensee's request and did not consult other agencies or persons.
FINDING OF NO SIGNIFICANT IMPACT The Commission has determined not to prepare an environmental impact statement for the proposed exemption.
Based on the foregoing environmental assessment, we conclude that the proposed action will not have a significant effect on the quality of the human environment.
For further details with respect to this action, see the application for the exemption dated January 2,1985, which is available for public inspection at the Commission's Public Document Room,1717 H Street, N. W.,
Washington, D. C., and at the Cedar Rapids Public Library, 500 First Street, S. E., Cedar Rapids, Iowa 52401.
Dated at Bethesda, Maryland, this 13th day of May,1985 FOR THE NUCLEAR REGULATORY COMMISSION j/' Gus C. Lainas, for Operating Assistant Director Reactors Division of Licensing ,
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