ML20247N487
| ML20247N487 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 05/25/1989 |
| From: | Knighton G Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20247N491 | List: |
| References | |
| NUDOCS 8906050370 | |
| Download: ML20247N487 (4) | |
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7590-01 1
UNITED. STATES NUCLEAR. REGULATORY. COMMISSION WASHINGTON PUBLIC POWER SUPPLY. SYSTEM l
DOCKET.NO. 50-397 NUCLEAR PROJECT NO. 2 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO.SIGNIFICANT IMPACT The U.S. Nuclear Regulatory Commission (the Comission) is considering 1ssuance of an amendment to Facility Operating License No. NPF-21 issued to Washington Public Power Supply System (the licensee), for operation of Nuclear Project No.: 2, located in Benton County, Washington.
-ENVIRONMENTAL ASSESSMENT
'I Identification.of Proposeo Action:
The propused amendment revises the battery load profiles shown in Technical Specification 3/4.8.2.1,. "D.C. Sources - Operating." The surveil-lance requirement includes a table showing the minimum amperage which each
' battery must be capable o'f delivering as a function of time when called upon to deliver emergency loads. The licensee has recalculated these emergency loads and the resulting battery profiles to account for current safety equip-ment configurations. The amendment inserts currently applicable values into the table.
In making the calculation, the licensee used a different aging factor for the 250 volt batteries than for the 24 volt and 125 volt batteries. The surveillance' requirement is revised to include separate criteria applicable to the 250 volt batteries for the periodic performance discharge tests.
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.The proposed action is in accordance with the licensee's application for amendment dated March 18, 1988, as supplemented by letter dated April 12, 1989.
.The Need for the Proposed Action:
The proposed amendment is required to ensure that the batteries are capable of providing emergency loads. The periodic surveillance required by the technical specifications is intended to show that the batteries are 4
capable of meeting the actual expected loads. The licensee has recently reevaluated emergency loads and has recomputed the battery requirements for these loads. :The amendment will place these up-to-date values into the technical specifications.
Environmental Impacts of the Proposed Action:
This action does.not involve a change to equipment or to operating procedures.
It is limited to a revision to the calculated emergency battery loads. An existing license requirement would be amended to reflect the new calculations.. The staff har completed its safety evaluation of the proposed amendment and finds the change acceptable.
The proposed action does not involve a significant change in the
. probability or consequences of any accident previously evaluated, nor does it involve a ner or different kind of accident. Consequently, any radiological releases resulting from an accident would not be significantly greater than previously determined. The proposed amendment does not otherwise affect routine radiological plant effluents. Therefore, the Commission concludes that there are no significant radiological environmental impacts associated with the proposed amendment. The Commission also concludes that the proposed
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action will not result in a significant increase in individual or cumulative occupational radiation exposure.
With regard to nonradiological impacts, the proposed amendment does not affect nonradiological plant effluents and has no other environmental impact.
Therefore, the Commission concludes that there are no significant nonradio-logical environmental impacts associated with the proposed amendment.
Alternatives to the Proposed Action:
Because the Commission has concluded that there are no significant environmental impacts associated with the proposed action,'there is no need to examine alternatives to the proposed action.
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 operation of Nuclear Project No. 2, dated December 1981.
Agencies and Persons Consulted:
The NRC staff has reviewed the licensee's request that supports the proposed amendment. The NRC staff did not consult other agencies or persons.
FINDING OF NO SIGNIFICANT IMPACT The Commission has determined not to prepare an environmental impact statement for the proposed amendment.
Based upon the foregoing environmental assessment, the Commission concludes the the proposed action will have no significant adverse effect on the quality of the human environment.
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The Notice of Consideration of Issuance of-Amendment and Opportunity for hearing in connection with this action was published in the Federal Register on May18,1988(53FR17810). No request for hearing or petition for leave to intervent was filed following this notice.
For further details with. respect to this action, see the application for amendment dated March 18, 1988 and supplement dated April 12, 1989, which are available for public inspection at the Commission's Public Document Room, 2120 L Street NW., Washington, DC 20555, and at the Richland City Library, Swift and Northgate Streets, Richland, Washington 99352.
Dated at Rockville, Maryland, this25th day of May 1989.
FOR THE NUCLEAR REGULATORY COMMISSION a)
L George. Knightoff, Director Project Directorate V Division of Reactor Projects III, IV, V and Special Projects Office of Nuclear Reactor Regulation
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