ML20072F209
| ML20072F209 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/10/1983 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20072F197 | List: |
| References | |
| TAC-49540, NUDOCS 8303230416 | |
| Download: ML20072F209 (2) | |
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SAFETY EVALUATION BY THE'0FFICE OF NUCL' EAR REACTOR REGULATION SUPPORTING Al1ENDffE!iT NO. g 3 TO FACILITY OPERATIflG LICENSE NO DPR-72 FLORIDA POWER CORPORATION, ET 'AL CRYSTAL RIVER UNIT NO. 3 NUCLEAR GENERATING PLANT DOCKET fl0. 50-302 Introduction By "05000302/LER-1979-109-03, /03L-0:on 791221,following Reactor Trip,Chem/Rod Sampling Showed Reactor Coolant Dose Equivalent I-131 Exceeded 1.0 Uci Per G Contrary to Tech Specs.Caused by Leaking Fuel Pins & [[Atomic Element" contains a listed "[" character as part of the property label and has therefore been classified as invalid. Transient|letter dated January 11, 1980]], as revised floverber 2,1981, Florida Power Corporation (FPC or the licensee) proposed a change to the Crystal River Unit 3 (CR-3) Te'chnical Specifications (TSs).
This TS change excepts certain containment isolation valves, after the valves have been placed in their containment isolation position, from the provisions of -
The licensee requested changes to TS 3.6.3.1 and to Table 3.6-1.
By telephone, our staffs mutually agreed to modify the request.
Backgro s d At CR-3, certain containment isolation valves became inoperable, recently, thereby placing the plant in a TS Action Statement.
This is significant in that if the plant were to be shutdown, subsequently, it would not be permitted to restart per the requirements of TS 3.0.4, until the valves were declared operable; however, TS 3.0.4 does provide for exceptions to this provision.
The FPC November 2,1981 letter was, as stated above, a request for such exceptions.
The licensee has since placed these valves in their isolated configuration.
Operation of these valves is not needed for an emergency core cooling function, normal plant " operation, startup or shutdown.
The FPC flovember 2,1981, letter requested additional relief from TS 3.0.4 for other such valves in systems penetrating con-tainment. The licensee has experienced difficulty obtaining replacement valves or parts; thus, the plant remains in ' the Action Statement with the possibility of an extended shutdown for a non-safety related cause.
Evaluation Exception to TS 3.0.4 is provided for, as stated above, in the TSs.
In recent editions of the Standard TSs, such exceptions are granted piior to issuance of the Operating License.
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At CR-3, the licensee has placed the inoperable valves in their isolated configuration thus ensuring that the valves will perform their post-accident isolation function.
In addition, the isolated valves do not interfere with nomal piant operation. We further determined that alternate paths are available for TS sampling requirements should an isolated valve, in a sampling line, fail in the isolated position. We conclude, for the reasons stated above, that the requested changes to the CR-3 TSs in Table 3.6-1 are acceptable.
0303230416 830310 DR ADOCK 05000302 PDR
Environmental Consideration
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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 stand environmental impact and, pursuant to 10 CFR 551.5(d){4) point of that an environmental impact statement, or negative declaration and environ-mental impact appraisal 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 conseauences of an accident previously evaluated, does not create,the possioility of an accident of a type different from any evaluated previously, and does not involve a significant reduction in a margin of safety, 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 amendmen.t will not be inimical to the common defense and security or to the health and safety of the public.
Dated:
MAR 101983
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The following NRC personne1 have contributed to this Safety Evaluation:
M. Fairtile, D. Brinkman.
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