ML20094F857
| ML20094F857 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 02/20/1992 |
| From: | Olshan L Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20094F860 | List: |
| References | |
| NUDOCS 9202270494 | |
| Download: ML20094F857 (5) | |
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7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION llllNOIS POWER COMPANY. ET AL.
DOCKET NO. 50-461 ENVIRONMENTAL ASSESSMENT AND FINDING Of NO SIGNIFICANT IMPACT The U.S. Nuclear Regulatory Commission (the Commission) is considering issuance of an amendment to facility Operating License No NPF-62, issued to Illinois Power Company and Dairyland Power Cooperative Inc. (the licensee),
for operation of the Clinton Power Station, Unit No.1, located in DeWitt County, Illinois.
ENVIRONMENTAL ASSESSMENT Identification of Proposed Action
-The proposed amendment would revise Technical Specification (TS) Section 3.3.4.1 to allow use of the Clinton Power Station (CPS) Anticipated Transient Without Scram Recirculation Pump Trip (ATWS-RPT) system test switches during operational condition 1 (RUN MODE) and to extend the out-of-service time for one channel from 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
The proposed action is in accordance with the licensee's application for amendment dated December 17, 1990, as supplemented by letter dated December 17, 1991.
The Need for the Proposed Action The proposed change to the TS is required in order to make the CPS TS consistent with other BWR-6 plants.
The proposed TS change is in compliance 9202270494 920220 PDR ADOCK 05000461 P
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with 10 CFR 50.62.
The current TS do not allow having more than one channel in a trip system inoperable.
The ATWS-RPT test switch design renders both channels in a trip system inoperable.
The proposed TS change will allow greater flexibility for maintenance and surveillance activities on the ATWS-RPT system.
Environmental Impacts of the Proposed _ Action The ATWS-RPT instrumentation is nonsafety related.
It is used to limit the consequences of a failure to scram during an anticipated trarvient.
The proposed changes do not result in any changes to the plant design, operation, or the setpoints of the ATWS-RPT instrumentation, and do not increase the probability or consequences of an accident. No changes are being made in the types of any ef fluent that may be released offsite, and there is no signif t-cant increase in the allowable individual or cumulative occupational radiation exposure.
Accordingly, the Commission concludes that this proposed action would result in no significant radiological environmental impact.
With regard to potential nonradiological impacts, the proposed change to the TS does not affect nonradiological plant effluent and has no other l
l environmental impact.
Therefore, the Commission concludes that there are no significant nonradiological environmental impacts associated with the proposed amendment.
Alternative to the Proposed Action Since the Commission concludes that there are no significant environmental effects that would result from the propsaed action, any l
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alternatives with equal or greater environmental impacts need not be evaluated. -
The principal alternative would be to deny the requested amendment.
1his would not reduce environmental impacts of plant operation and would result in reduced operational flexibility.
Alternative Use of Resourcti This action does not involve the use of any resources not previously considered in the Final Environmental Statements for the Clinton power Station Unit No. 1 dated May 1982.
3 Aaencies and Persons Consulted The NRC staff reviewed the. licensee's request and did not consult other agencies or persons.
FINDING Of ho SIGNIFICANT IMPACI Based upon this environmental assessment, the Commission concludes that the proposed ' action will not have a significant effect on the quality of the human environment. Accordingly, the Commission has determined not to prepare an environmental impact statement for the proposed license amendment.
For further details with respect to this action, see the request for amendment dated December 17, 1990 and revised December 17, 1991, and the final Environmental Statement for the Clinton Power Station dated May 1982, which m-1.
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4 are available for public inspection at the Commission's Public Document Room, 2120 L Street, N.W., Washington, D.C. and at the Vespasian Public Library, 120 West Johnson Street, Clinton, Illinois 61727.
Dated at Rockville, Maryland, this 20th day of February 1992.
FOR THE NUCLEAR REGULATORY COMMISSION Nwl. 9b /MA Leonard N 01shan, Acting Director Project Directorate 111-3 Division of Reactor Projects Ill/IV/V Office of Nuclear Reactor Regulation
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Mr. Frank A. Spangenberg Clinton Power Station Illinois Power Company Unit No. I cc:
Mr. J. S. Perry 111inois Department Vice President of Nuclear Safety Clinton Power Station Office of Nuclear facility Safety Post Office Box 678 1035 Outer Park Drive Clinton, Illinois 61727 Springfield, Illinois 62704 Mr. J. A. Miller Mr. Donald Schopfer Manager Nuclear Station Project Manager Engineering Department Sargent & Lundy Engineers Clinton Power Station 55 East Monroe Street Post Office Box 078 Chicago, Illinois 60603 Clinto,, Illinois 61727 Sheldon Zabel, Esquire Schiff,-Hardin & Waite 7200 Sears Tower 233 Wacker Drive Chicago, Illinois 60606 Resident inspector U.S. Nuclear Regulatory Commision RR#3, Box 229 A Clinton, Illinois 61727 Ms. K. K. Berry Licensing Services Manager General Electric Company 175 Curtner Avenue, M/C 382 San Jose, California 95125 Regional Administrater. Region III 799 Roosevelt Road, Building 4 Glen Ellyn, Illinois 60137 Chairman of DeWitt County c/o County Clerk's Office DeWitt County Courthouse Clinton, Illinois 61727 Mr. Robert Neumann Office of Public Counsel State of Illinois Center 100 W. Randolph, Suite 11-300 Chicago, Illinois 60601
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