ML20136J004
| ML20136J004 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 01/03/1986 |
| From: | Muller D Office of Nuclear Reactor Regulation |
| To: | City of Dalton, GA, Georgia Power Co, Municipal Electric Authority of Georgia, Oglethorpe Power Corp |
| Shared Package | |
| ML20136J008 | List: |
| References | |
| TAC 59309 NUDOCS 8601130132 | |
| Download: ML20136J004 (3) | |
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7590-01 j
UNITED STATES NUCLEAR REGULATORY COMMISSION ENVIRONMENTAL ASSESSMENT AND FINAL FINDING OF NO SIGNIFICANT IMPACT REGARDING PROPOSED AMENDMENT TO FACILITY OPERATING LICENSE GEORGIA POWER COMPANY OGLETHORPE POWER CORPORATION MUNICIPAL ELECTRIC AUTHORITY OF GEORGIA CITY OF DALTON, GEORGIA DOCKET NO. 50-321 The U. S. Nuclear Regulatory Commission (the Commission) is considering the issuance of an amendment to Facility Operating License No. DPR-57 issued to Georgia Power Company, Oglethorpe Power Corporation, Municipal Electric Authority of Georgia, and the City of Dalton, Georgia, (the licensees) for operation of the Edwin I. Hatch Nuclear Plant, Unit No. 1 (the facility) located in Appling County, Georgia.
ENVIRONMENTAL ASSESSMENT Identification of Proposed Action: With the exception of one change that was found to be unacceptable, the proposed action would permit the licensees to implement the changes to the Hatch Plant Unit 1 Technical Specifications (TSs) as described in their letter of July 24, 1985.
It would permit changes in the surveillance frequencies and in the trip setpoints associated with the new analogue transmitter trip system (ATTS) equipment that is being installed at Unit 1.
It would also increase the turbine exhaust pressure range over which the reactor core isolation cooling (RCIC) system is allowed to operate and would make a number of administrative corrections.
The proposed change that P
l I.
was found to be unacceptable involved changing the reactor vessel steam dome lower steam dome pressure limit and deleting the reactor vessel steam dome upper pressure limit for opening the low pressure core injection and core spray systems injection valves.
The Need for proposed action is to:
(i) Support the installation of new ATTS equipment (ii) Extend the operating range of the RCIC system, and (iii) Update and correct identification numbers and correct minor typographical errors Environmental Impacts of the Proposed Action:
The proposed action will provide revised surveillance requirements aad trip setpoints that are appropriate to the new ATTS equipment and are consistent with the FSAR Accident Analysis for Hatch Unit 1.
It will also provide for greater availability of the RCIC during small break loss of coolant accidents.
Thus, post-accident radiological releases will not be greater than previously determined, nor does the proposed change othe mise affect radiological plant effluents.
Occupational exposures to radiation would also be unaffected. Therefore, the Commission concludes that there are no significant radiological environmental I
impact associated with this proposed amendment.
With regard to potential nonradiological impacts, the proposed change f
involves systems located within the restricted area as defined in 10 CFR 20.
No nonradiological effluents are affected, and no other environmental impact would occur.
Therefore, the Commission concludes that there are no significant nonradiological environmental impacts associated with the proposed change.
1 Since we have concluded that there is no measurable environmental impact associated with the proposed changes to the Technical Specifications, any alternatives to these changes will have either no environmental impact or greater environmental impact.
The principal alternative would be to deny the requested amendment.
This would not reduce environmental impacts of plant operation.
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 Hatch Unit 1 operation (Final Environmental Statement Dated October 25, 1972).
Agencies and persons Consulted:
The Comission's staff reviewed the licensee's request 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 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.
For further details with respect to this action, see the application for amendment dated July 24, 1985, which is available for public inspection at the Comission's Public Document Room,1717 H Street, N.W., Washington, D.C., and at the Appling County Public Library, 301 City Hall Drive, Baxley, Georgia.
Dated at Bethesda, Maryland, this 3rd day of January 1986.
FOR THE NUCLEAR REGULATORY COMISSION
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V Daniel R. Muller, Director BWR Project Directorate #2 Division of BWR Licensing
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