ML20207D700
| ML20207D700 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 08/01/1988 |
| From: | Olshan L Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20207D679 | List: |
| References | |
| NUDOCS 8808150429 | |
| Download: ML20207D700 (4) | |
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7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION ILLIN0IS 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 the Illinois Power Company * (IP), Soyland Power Cooperative, Inc. and Western Illinois Power Cooperative, Inc., (the licensees) for Clinton Power Station, Unit 1, located in DeWitt County, Illinois.
ENVIRONMENTAL ASSESSMENT Identification of Proposed Action:
In general, the proposed license i
amendment would revise Surveillance Requirement 4.11.2.7.2 concerning the radioactivity rate of noble gases from the off-gas recombiner effluent in order to ensure compatibility between Specifications 4.0.4 and 4.11.2.7.2.
The H
licensees proposed an exception to Specifications 4.0.4 in Surveillance Requirement 4.11.2.7.2 which would allow the plant to enter the applicable t
OPERATIONAL CONDITION without having first performed the required surveillances.
This revision to the Clinton Power Station license would be made in response to the licensees' application for amendment dated October 30, 1987.
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lIllinois Power Company is authorized to act as agent for Soyland Power Cooperative, Inc. and Western Illinois Power Cooperative, Inc. and has i
l exclusive responsibility and control over the physical construction, operation and maintenance of the facility.
8808150429 esosos PDR ADOCK 05000461 P
PNV l
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a The Need for the Proposed Action:
Pursuant to 10 CFR 50.90, IP, et al.
have proposed an amendment to Facility Operating License No. NPF-62 which would ensure compatibility between Specifications 4.0.4 and 4.11.2.7.2.
Specification 4.0.4 states that entry into an OPERATIONAL CONDITION or other specified applicable condition shall not be made unless the Surveillance Requirement (s) associated with the Limiting Condition for Operation have been performed within the applicable surveillance interval or as othentise specified. Specification 4.11.2.7.2 requires the radioactivity rate of noble gases from the off-gas recombiner effluent to be determined at two specified frequencies:
(1)atleastonceper31 days,and(2)within4hoursfollowing an increase of 50% in the indicated nominal steady state fission gas release from the primary coolant (with certain provisions). The APPLICABILITY of this Specification (i.e., the applicable OPERATIONAL CONDITION) is "during operation for the main condenser air ejector".
Although it is readily apparent that Surveillance 4.11.2.7.2 cannot be perfonned until after entering the special applicable OPERATIONAL CONDITION, l
an exception to Specification 4.0.4.has been proposed to be included in Specification 4.11.2.7.2 in order to ensure compatibility between Specification 4.0.4 and 4.11.2.7.2.
This exception formally allows the plant to enter the applicable OPERATIONAL CONDITION without having first performed the required surveillances.
Environmental Impacts of the Proposed Action: The Commission has determined l
that the licensees' proposed change to their RETS meets the intent of the NRC model RETS for BWRs, NUREG-0473, Revision 2, dated February 1,1980. Thus, the proposed change does not involve a significant increase in the probability or consequences of an accident previously evaluated. Two plants which are similar to Cifnton that were licensed in the past several years have this proposed exception incorporated in their original RETS.
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w-The Conmission has determined that potential radiological releases during normal operations, transients, and for accidents would not be increased. With regard to non-radiological impacts, the proposed amendment involves systems located entirely within the restricted area as defined in 10 CFR Part 20.
They do not affect non-radiological plant effluents and have no other environmental impacts. Therefore, the staff also concludes that there are no significant non-radiological environmental impacts associated with the proposed amendment.
Accordingly, the Commission findings in the "Final Environmental Statement related to the operation of Clinton Power Station, Unit No.1" dated May 1982, regarding radiological environmental impacts from the plant during normal operation or after accident conditions, are not adversely altered by this action.
IP is committed to operate Clinton, Unit 1 in accordance with standards and regulations to maintain occupational exposure levels "as low as reasonably achievable".
Alternative to the Proposed Actions: The principal alternative would l,
be to deny the requested amendment. This alternative, in effect, would be the same as a "no action" alternative. Since the Commission has concluded that no l
adverse environmental effects are associated with this proposed action, any 1
alternatives with equal or greater environmental impact need not be evaluated.
y Alternative Use of Resources: This action does not involve the use of i
resources not previously considered in connection with the Nuclear Regulatory Commission's Final Environmental Statement dated May 1982 related to this facility.
Agencies and Persons Consulted:
The NRC staff reviewed the licensees' request or October 30, 1987 and did not consult other agencies or persons.
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4 FINDING OF N0 SIGNIFICANT IMPACT: The Commission has determined not to prepare an environmental imp 6ct statement for the proposed license amendment.
Based upon this environmental assessment, the Commission concludes that the proposed action will not have a significant adverse effect on the quality of the human environment.
For further details with respect to this action, see the request for amendment dated October 30, 1987 and the Final Environmental Statement for the Clinton Power Station dated May 1982, which are available for public inspection at the Commission's Public Document Room, 1717 H Street, N.W.,
Washington, D.C.
20555 and at the Vespasian Warner Public Library, 1
120 West Johnson Street, Clinton, Illinois 61727.
l Dated at Rockville, Maryland this 1st day of August 1988.
FOR THE NUCLEAR REGULATORY COMMISSION bh Leonard N. 01shan, Acting Director Project Directorate III-2 Division of Reactor Projects III, IV, V and Special Projects l
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