ML20206D987
| ML20206D987 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 11/14/1988 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20206D979 | List: |
| References | |
| NUDOCS 8811170346 | |
| Download: ML20206D987 (2) | |
Text
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UNriED STATES f
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NUCLEAR REG'vLATORY COMMISSION e
l wa:HINoTON.D,C 20666 r,
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SAFETY EVALUATION BY THC 0FFICE OF NUCLEAR REACTOR REGULATION 4
RELATED TO AMENDMENT NO.115 TO PROVISIONAL OPERATING LICENSE NO. OPR-20 COMSUMERS POWER COMPANY l
PALISADES PLANT DOCKET NO. 50-255 f
f INTRODUCTION
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Consumers Power Company (the licensee) made application for a license amendment on August 19, 1986, to revise the Technical Specifications for the Palisades Plant to reflect changes in the pressurizer level instrumentation.
The changes involve adding a second environmentally qualified, wide range channel for post-l accident monitoring capability.
Three non qualified narrow range channels are being eliminated.
Therefore, the limiting condition for operation (LCO) f c wide range channels is increased from one to two.
The three unqualified, narrow range channels had no associated LCO.
Also, the once-per-shift instrument check in the surveillance specification is revised to require comparison of channels of the same range.
i In addition, on August 24, 1988, the licensen made application for a license amendment to revise the Technical Specifications related to the monthly j
surveillance test to be performed on Area Radiation Monitors.
It allows alternate methods for performing the monthly surveillance on Area Radiation Monitors depending on the design.
The two applications are being processed as one amendment because they affett a common page of the Technical Specifications.
EVALUATION i
Regulatory Guide 1.97 criteria call for redundant, wide range water level monitoring channels that are environmentally qualified.
Palisades Plant had only one such channel, but the licensee committed to install a second channel.
This addition has been completed during the present refueling outage, lhus, the port-accident monitoring capability has been upgraded and the additional requirement for two operable, wide range channels will ensure that this mor.itoring capability will be available, when required.
The NRC staff finds this acceptable.
The surveillance requirement for these channels is modified to reflect that the l
once per-shift-check of these channels is to be a comparison of like-range channels.
Three unqualified channels that were not of the proper range are removed and deleted from the surveillance requirement.
The NRC staff finds this acceptable.
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. The final change relates to the type of monthly surveillance test to verify operability of the Area Radiation Monitors.
The original requirement was that the detector be exposed to a remote operated radiation check source.
During the present refueling outage, the Evaporator Control Panel area monitor is being replaced because of reliability problems.
The old monitor employed an integral, remotely operatid check source.
The new monitor employs more sophisticated, state-of-the-art methods by electronically varying the uetector high voltage.
In addition, malfunctions of the new monitor are displayed on a readout and the system performs continuous self diagnostic testing and displays error codes, if problems exist.
The new monitor has the same range and accuracy as the old system, but greatly reduced instrument drift.
As other old area monitors are replaced, the riew digital monitor system is planned for the replacement.
The NRC staff finds this acceptable.
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ENVIRONMENTAL CONSIDERATION This amendment involves a change in the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20 and a change in a surveillance requirement.
We have determined that the amenoment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in indivic.al or cumulative occupational radiation exposure.
The Commission has prt.iously issued a proposed finding tnat this amendment involves no significant hazards consideration and there has been no public comment on such finding.
Accordingly, this amendment meets the eligibility criteria for categorical exclusion set forth ir. 10 CFR 51.22(c)(9).
Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in conteection with the issuance of this amendment.
CONCLUSION We have concluded, based on the considerations discussed above, that (1) there it, reasonable assurance that the health and sai:ty of the public will not be endangered by Operation in the proposed mar.ner, and (2) such activities will be conducted in compliance with the Commission's regulations, and the issuance of the amendment will not be inimical to the common defense and security or to the health and safety of the public.
Oate:
November 14, 1988 Principal Contributors-T. Wambach s
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