ML20246E866
| ML20246E866 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 08/23/1989 |
| From: | Thoma J Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20246E868 | List: |
| References | |
| NUDOCS 8908300046 | |
| Download: ML20246E866 (3) | |
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7590-01 U.S. NUCLEAR REGULATORY COMMISSION l
DETROIT EDISON COMPANY WOLVERINE POWER SUPPLY COOPERATIVE, INC.
i DOCKET NO. 50-341 FERMI-2 l
l ENVIRONMENTAL ASSESSMENT AND FINDING OF
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l NO SIGNIFICANT IMPACT
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The U.S. Nuclear Regulatory Commission (the Commission) is considering issuance of an amendment to Facility Operating License No. NPF-43, issued to the Detroit Edison Company (DECO) and the Wolverine Power Supply Cooperative, Incorporated (the licensees) for the operation of Fermi-2 located in Monroe County, Michigan.
ENVIRONMENTAL ASSESSMENT Identification of Proposed Action:
The proposed amendment would revise the Technical Specifications (TS) relating to the Source Range Monitors (SRM) to permit core off-loading during the first refueling outage. The proposed amendment also increases the minimum signal-to-noise ratio required for a reduced SRM minimum count rate requirement and eliminates a related TS provision which is no longer needed.
The proposed action is in accordance with the licensees' application for amendment dated April 3, 1989.
The Need for the Proposed Action:
The proposed changes to the TS are required in order to allow complete l
core off-loading and ensure adequate signal-to-noise ratio exists when the SRM minimum count rate requirement is reduced.
Environmental Impacts of the Proposed Action:
The Commission has completed its evaluation of the proposed revision to the TS. The proposed revision would permit complete core off-loading by 8908300046 890823 PDR ADOCK 05000341
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L eliminating.the SRM minimum count rate requirements during the off-load p
process'once the. remaining fuel is configured such that SRM monitoring is no longer needed for safety The SRM minimum count rate requirement may be
. reduced to 0.7 counts per second (eps) from 3.0 cps as long as a sufficient signal-to-noise ratio is present.
The current requirement is a signal-to-noise-ratio of 2; the proposal increases this required ratio to 20 to ensure that the assumptions regarding SRM measurement uncertainty remain satisfied at the reduced SRM levels. Therefore, the proposed changes do not increase the probability.or consequences of any accidents, no changes are being made in the-types of any effluents that may be released offsite, and there is no signifi-cant l increase in the allowable individual or cumulative occupational radiation exposure. Accordingly, the Commission concludes that this proposed action would result in no significant radiological impact and could result in the I
reduction of the ra'diological impacts.
With-regard to potential nonradiological.mpacts, the proposed changes to
~ the TS involve system's located within the restricted area as defined in 10 CFR Part 20. They do not affect nonradiological plant effluents and have no other environmental impact. Therefore, the Commission concludes that there are no significant nonradiological environmental impacts associated with the proposed amendment.
[lternativetotheProposedAction:
Because the Commission has concluded that there is no significant environmental Spact associated with the proposed amendment, any alternative would have either no or greater environmental impact.
The principal alternative would be to deny the requested amendment. This would prevent core offloading and not provide appropriate TS provisions for reducing the SRM minimum count ra'.
' requirements.
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, Alternative Use'of Resources:
This? action involves. no use..of-resources not previously, considered ist.
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- connection with the " Final Environmental' Statement: Related to Operation'of Fermi-2 " dated August 1981.
Agencies and Persons Consulted k
The Comission's: staff reviewed the,11censees' request and ~did not-
' consult other agencies'or~ persons.
p FINDING OF NO SIGH!FICANT IMPACT-The. Comission has determined not'to prepare an environment impact state-t-
ment for the proposed license amendment.
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' Based upon the foregoing environmental assessment, the Comission
. concludes that the proposed action will not have a significant effect on the quality-of-the human environment.
The Notice'of Consideration of Issuance of Amendment and Opportunity for.
Hearingfin connection; tith this action was published in the FEDERAL REGISTER on August 1, 1989 (54 FR 31749).
No request for hearing or petition for leave to. intervene was filed following this notice.
For further details with respect to this action, see the application for amendment dated May 10, 1989, which is available for public inspection at the Comission's Public Document Room, 2120 L Street, N.W., Washington, D.C., and at the Monroe County Library System, 3700 South Custer Road, Monroe, Michigan 48161.
~ Dated at' Rockville, Maryland,. this 23rd of August 1989'.
FOR THF NUCLEAR REGULATORY COMMISSION ha ohn 0. Thoma, Acting Director Project Directorate III-1 Division of Reactor Projects - III, IV, V & Special Projects Office of Nuclear Reactor Regulation
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