ML20003H827
| ML20003H827 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 04/17/1981 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20003H825 | List: |
| References | |
| NUDOCS 8105070512 | |
| Download: ML20003H827 (2) | |
Text
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NUCLEAR REGULATORY COMMISSION n
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT NO. 39 TO FACILITY OPERATING LICENSE NO. DPR-72 1
FLORIDA POWER CORPORATION, ET AL CRYSTAL RIVER UNIT 3 NUCLEAR GENERATING PLANT
~30CKET NO. 50-302 Introduction By letter dated April 15, 1981 Florida Power Corporation (FPC) requested authorization for an exemption to the Crystal River Unit 3 Technical Specifications to allow entry into Modes 1, 2, 3 and 4 with cne Main Steam Isolation Valve (MSIV) closed.
Evaluation J
Technical Specification a.7.1.5 permits operation in Modes 1, 2, 3 and 4 with one MSIV closed but Tech Spec 3.04 does not permit entry into operational Modes 1, 2, 3 and 4 unless th'a MSIV's are operable. We have reviewed the request from FPC and have determined that entry into Modes 1, 2, 3 and 4 with one MSIV closed is not a problem because, our previous safety evaluation of standard Technical Specifications for B&W plants has already considered the continous power operation acceptable with one MSIV valve closed.
The mode switching with one MSIV closed introduces no new problems.
Therefore, we may modify the Technical Specifications to authorize the FPE. request. Technical Specification 3/4.6.3 has, therefore, been modified accordingly.
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 impact. Having made this determination, we have further concluded that the amendment involves an action which is insignificant from the standpoint of enviro'nmental impact and, pursuant in 10 CFR 551.5(d)(4), that an environmental impact state-ment, or negative declaration and environmental impact appraisal need not be prepared in connection with the issuance of this amendment.
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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 ennsidered and does not involve a significant decrease in a safety margin, the amen &nent does not involve a significent 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.
Dated: April 17, 1981 3
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