ML20034B676
| ML20034B676 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 04/24/1990 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20034B675 | List: |
| References | |
| NUDOCS 9004300179 | |
| Download: ML20034B676 (2) | |
Text
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'o UNITED $TATES NUCLEAR REGULATORY COMMISSION i
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION l
SUPPORTING AMENDMENT NO. 73 TO FACILITY OPERATING LICENSE NO. NPF-11 AND AMENDMENT N0. 57 TO FACILITY OPERATING LICENSE NO. NPF-18 COMMONWEALTH EDISON COMPANY LASALLE COUNTY STATION, UNITS 1 AND 2 DOCKET N05. 50-373 AND 50-374 i
1.0 INTRODUCTION
By letter dated September 9,1988 (C. M. Allen, Ceco to U.S. NRC), Commonwealth EdisonCompany(CECO)(thelicensee),proposedaTechnicalSpecificationchange to the subsequent visual inspection period when no inoperable snubbers of each I
type on any system per inspection period are found in LaSalle County Station.
Units 1 and 2.
The inspection period is being changed to reflect the current I
operating cycle of 18 months.
2.0 BACKGROUND
Current specification 3/4.7.9 allows the subsequent vtsual inspection period for zero inoperable snubbers per inspection period to be 18 months $25%.
If a particular refueling outage date is extended due to an unscheduled outage early in the cycle, the unscheduled outage could be too soon to do the snubbers visual inspection (18 months-25%).
Yet the new refueling outage date could be too late (18 months +251)todotheinspection.
The proposed amendment would allow an earlier inspection if the plant is shut down, thus avoiding an additional outage i
later to perform this inspection.
3.0 EVALUATION This change would modify LaSalle County Station Units 1 and 2 lechnical SpecificationrequirementunderSection4.7.9.b,'SubsequentVIsualInspection period" for zero failures from 18 months (*25%) to 18 months (-50% +255). This would allow greater flexibility in snubber surveillance. The 18 months -50%
period is more conservative and is still within the interval of inspection wheretherehavebeentwo(2) failures.
Mine months is sufficient operating i
time to challenge the snubbers. The maximum interval of 18 months +25% will not be affected
4.0 ENVIRONMENTAL CONSIDERATION
These amendments involve changes to requirements with respect to installation or use of a facility component located within the restricted area, as defined in 10 CFR Pert 20. The staff had determined that this amendment involves no significant increase in the amounts, and no significant change in the types, of aay effluents that may be released offsite, and that there is no significant
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l 9004300179 900424 FDR ADOCK 05000373
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4 2-increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that these amendments I
involve no significant hazards consideration and there has been no public comment on such finding. Accordingly, these amendments meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of this amendment.
5.0 CONCLUSION
The Commission made a proposed determination that the amendments involve no significant hazards consideration which was published in the Federal Register (53FR53089)onDecember 30, 1988, and consulted with the state of Illinois, i
i No public comments were received, and the state of Illinois did not have any Comments.
The staff has concluded, based on the considerations discussed above, that:
(1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (2) such activities will be conducted in compliance with the Commission's regulations and the issuance of these amendments will not be inimical to the common defense and security or to the health and safety of the public.
Principal Contributor:
R. Pulsifer, NRR/PDl!!-2 Dated:
April 24, 1990 r
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