ML20246F890
| ML20246F890 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 08/23/1989 |
| From: | Thoma J Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20246F893 | List: |
| References | |
| NUDOCS 8908310162 | |
| Download: ML20246F890 (3) | |
Text
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755C-01 U.S. NUCLEAR REGULATORY COMMISSION DETROIT EDISON COMPANY 1
WOLVERINE POWER SUPPLY COOPERAT YE, INC.
DOCKET NO. 50-341 FERMI-2 ENVIRONMENTAL ASSESSMENT AND FINDING OF i
NO SIGNIFICANT IMPACT L
The U.S. Nuclear' Regulatory Comission (the Comission) is considering:
~
issuance of an. amendment to Facility Operating License No. NPF-43, issued to 1
the Detroit' Edison Company (DECO) and the Wolverine Power Supply Cooperative,
' Incorporated (thelicensees)fortheoperationofFermi-2locatedinMonroe i
County, Michigan.
l ENVIRONMENTAL ASSESSMENT 1
Identification of Proposed Action:
.)
The proposed' amendment would revise the Technical Specifications (TS) for j
.the Reactor. Protection System (RPS) to reflect design changes for the Reactor Protection System (RPS) scheduleo to be completed during the upcoming refueling i
outage scheduled for September 1989. The design change will eliminate the
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Backup Manual Scram function and add further redundancy to the RPS capability to manually initiate a scram.
The proposed action is in accordance with the licensees' application for amendment dated May 10, 1989.
The Need for the Proposed Action:
l The proposed changes to the TS are required in order for the TS to include appropriate requirements for the as-modified RPS design.
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Environmental Imoacts of the Proposed Atticn:
The Commission has completed its evaluation of the proposed revision to the TS. The proposed revision would reflect design changes which are being l
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made to eliminate the Backup Manual Scram (BUMS) feature. The BUMS feature when actuated causes a concurrent isolation for the Main Steam Isolation Valves (MSIV). This is undesirable since the MSIV isolction results in the loss of the main condenser as a heat sink.
In place of the BUMS feature, Deco is providing an additional channel in each RPS trip logic for the Manual Scram and Reactor Mode Switch Position Scram features. These additional channels provide an alternative method to meet the regulatory and design requirements for manual scram redundancy.
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 significant 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 reduction of the radiological impacts.
With regard to potential nonradiological impacts, the proposed changes to L
the TS involve systems 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.
Alternative to the Proposed Action:
Because the Commission has concluded that there is no significant environmental impact 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 the design modifications from being completed and would accordingly not alleviate the problems of the current BUMS design.
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' Alternative Use of' Resources:
This action involves no use of. resources not prevd.usly' considered irt-connection with the " Final Environmental Statement Related to Operation of1 Fermi-2," dated August 1981.
Agencies and Persons Consulted The Comission's' staff reviewed the licensees' request and did not -
consult other agencies or persons.
FINDING OF NO SIGNIFICANT.. IMPACT
-The Comission has determined 'not to prepare an environment impact state-ment for,the proposed, license amendment.
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 Hearing in~ connection with'this action was published in the FEDERAL REGISTER l
on' July 11, 1989 (54'FR 29117).- 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 April 3, 1989, which is available for public inspection at the Comission's Public Document Room, 2120 L. Street, N.W.,' Washington, C.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.THE NUCLEAR REGULATORY COMMISSION k
John 0. Thoma, Acting Director
- Project Directorate 111-1 Division of Reactor Projects - III, IV, V & Special Projects Office of Nuclear Reactor Regulation J
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