ML20003G509
| ML20003G509 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 04/16/1981 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20003G505 | List: |
| References | |
| NUDOCS 8104290726 | |
| Download: ML20003G509 (2) | |
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UNITED STATES
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SAFETY EVALUATICM BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 59 TO FACILITY OPERATING LICENSE NO. NPF-1 PORTLAND GENERAL ELECTRIC COMPANY THE CITY OF EUGENE, OREGON PA~IFIC POWER AND LIGHT COMPAMY TROJAN NUCLEAR PLAHT DOCKET NO. 50-344 Introduction 16, 1991, Portland General Electric Comcany, et al.
Sy letter dated March (the licensee) requested a change to the Technical Specifications appeIIded to Facility Operating License No. NPF-1 for operation of the Trojan Nuclear Plant in Columbia County, Oregon.
The requested change relates to the requirement for testing of the containment air locks. The present Technical Specifications require, among other things, that the containment air locks be tested for leakage after each opening.
The licensee proposes to test the air locks at least once witnin three days after opening.
Discussicn and Evaluation The licensee's proposed change is consistent with a recent revision to the regulations governing air lock testing. These regulations are contained in 10 CFR 50, Appendix J " Primary Reactor Containment Leakage Testing for Water-Cooled Power Reactors". The revision governing air lock testing was published in the Federal Register on September 22, 1980 (45 FR 62789) and became effective on October 22, 1980. Since the licensee's requested change is in agreement with the revised regulation, and there are no special circumstances with respect to the Trojan air locks which would indicate that more frequent testing is advisable, we find the licensee's proposed change to be acceptable.
In reviewing the licensee's proposed change and the existing Technical Specifications, we found that one revised air lock testing requirement in the revised Appendix J should be added so that the Technical Specifica-tions are completely up to date. This requirement relates to the testing of air locks opened during periods when containment integrity is not recuired.
The new regulation requires a test at the end of such periods. This addition to the Technical Specifications, although it is a requirement by regulation, will make the Technical Specifications complete with respect to all air lock testing requirements and help avoid confusion. The licensee has agreed.
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Environmental Consideration We have determined that the amendment does not authorize a change in effluent types or total amounts nor an increase in power level and will not result in any significant environmental imoact. Having made this determination, we have further concluded that the amendment involves an action which is insignificant from the standpoint of environrental impact and, pursuant to 10 CFR 551.5(d)(4), 'that an environmental impact statement or negative declaration and environ-mental impact anpraisal need not be prepared in connection with the issuance of this amendment.
Conclusion We have concluded, based on the considerations discussed above, that:
(1) because the amendment does not involve a significant increase in the probability or consequences of accidents previously considered and does not involve a significant oecrease in a safety margin, the amendment does not involve a significant hazards consideration, (2) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (3) such activities will be conducted in compliance with the Commission's regulations and the issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public.
Date: April 16, 1981 l
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