ML20203N610
| ML20203N610 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 04/24/1986 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20203N549 | List: |
| References | |
| TAC-60064, NUDOCS 8605050552 | |
| Download: ML20203N610 (2) | |
Text
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'o UNITED STATES g
8 NUCLEAR REGULATORY COMMISSION o
WASHINGTON. D. C. 20555
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 96 TO FACTLITY OPERATING LICENSE NO. DPR-40 OMAHA PUBLIC POWER DISTRICT FORT CALHOUN STATION, UNIT NO. 1 DOCKET NO. 50-285
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Introduction:==
By application dated October 31, 1985, the Omaha Public Power District (the licensee), requested changes to the Fort Calhoun Station, Unit No. 1 technical specifications.
One change dealt with updating the snubber table listings.
The other change dealt with making the surveillance requirements for the nuclear detector well cooling annulus exit air temperature detectors consistent with the associated limiting condition for operation, (LCO).
Evaluation:
The Fort Calhoun Station technical specifications permit the licensee to add, change, or delete snubbers without prior license amendments provided that an acceptable engineering analysis justifies each change.
In addition, deletions are allowed only after an independent review of the engineering justification is performed and the deletions are approved by the Safety Audit and Review Committee.
The technical' specifications also require the licensee to update the changes to the snubber table listings in a subsequent licensing amendment request. The above described technical specifications are contained in LC0 section 2.18.
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The licensee submitted the updated snubber table listings in the subject i
application and stated that the snubber changes adequately met OPPD review l
requirements.
OPPD review requirements ensure that the technical specification requirements are met.
Based on the licensee's statement, we consider the changes an administrative matter and they are acceptable.
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The Fort Calhoun Station technical specifications, as contained in LC0 section 2.13, require that there be at least two temperature detectors in i
service to measure annulus exit air temperatures whenever the reactor is in service.
As a practical matter, there are more than two temperature detectors which measure annulus exit air temperature, namely, eight.
However, the associated surveillance requirement which is contained in Section 3.1 currently requires " compare eight (8) independent readings."
Accordingly, the surveillance requirement effectively mandates that eight air temperature detectors be in service. The licensee proposes to change the wording to " comparison of independent temperature readings," thereby requiring that at least two air temperature detectors be in service.
8605050552 860424 PDR ADOCK 05000285 P
4 The licensee states that this change would make the LC0 and surveillance requirement consistent.
It is acceptable to reduce the surveillance requirement from eight to a minimum of two because we believe (1) that, as a minimum, only two are needed, and (2) that the surveillance requirement should be consistent with the LCO.
Accordingly, the change is acceptable.
The licensee also proposes to change the word " test" to " check" in this particular surveillance requirement. We agree with the licensee to change the word from " test" to " check" for indeed one is checking the air temperature of the well cooling annulus exit and not testing it.
This change is also consistent with other surveillance requirements where there is a distinction between check and test. Accordingly, the word change is acceptable.
ENVIRONMENTAL CONSIDERATION This amendment involves a change in surveillance requirements for the nuclear detectors cooling system.
The staff has determined that the amendment 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 individual or cumulative occupational radiation exposure.
The Commission has previously published a proposed finding that 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 in 10 CFR S51.22(c)(9).
This amendment also involves changes in recordkeeping, reporting or administrative procedures or requirements. Accordingly, with respect to these items, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR $51.22(c)(10).
Pursuant to 10 CFR SS1.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of thi; amendment.
CONCLUSION We have 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 the amendment will not be inimical to the common defense and security or to the health and safety of the public.
Date:
April 24,1986 Principal Contributor:
E. G. Tourigny A
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