ML20037A783
| ML20037A783 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 01/30/1978 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20037A781 | List: |
| References | |
| NUDOCS 8004070459 | |
| Download: ML20037A783 (3) | |
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ENCLOSURE 1
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ENVIRON.Ef;TAL IMPACT APPRAISAL FOR CRYSTAL RIVER UNIT NO. 3 ENVIRONMENTAL TECHNICAL SPECIFICATIONS 1.
Description of Proposed Action On November 8,1977, Florida Power Corporation submitted an amendment which included a change to specification 3.1.3 Impina; ment Monitoring.
The change is to add to the specification the following sentence:
"This Specification shall not be applicable during the period of the intake canal modification."
T e licensee cor ends that impingement tronitoring data during the extensive dredging modifications of the intake canal would be of questionable value.
T.is part of the licensee's submittal has been handled separately from the re-rainder of the recuests.
The licensee informally requested only resolution of
- .is ; art of the s;br.ittal to facilitate its decision on contract renewal for the inpingerent cnitoring. This acpraisal does not address the impacts from the intake canal rodification.
2 Environmental Impacts of Procosed Action e intake canal serving Crystal River Units 1, 2 and 3 is being modified to ac-ce:- large coal carges for the conversion of Units 1 and 2 from oil to coal fuel.
e canal will te deepened to a mininum depth of 20 feet below mean sea level.
'n acdition, tne south dike of the intake canal is being lengthened by approxi-i:ely 1.5 miles.
Tne intake canal rodification is scheduled to begin in March, Fi and run unti' rucust,1979 acccrding to the licensee's Novenber 8,1977 L:-i :al.
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- nmental Te:~ical Specificaticn 3.1.3 requires sampling of fish and shell-
"- f r:, the ' ;s.e screens of all three units once weekly for 24 consecutive 8004070 N f
. hours.
In addition, the screen-wash racks shall be monitored visually daily to determine any abnormal catches.
The licensee indicates that impingement data would be of questionable use be-cause of the unique circumstances of the intake canal work.
The objective of ETS 3.1.3 is "to determine the quantity of impinged fish and shellfish on the intake screens to compare with preoperational data." Impinge-ment monitoring data collected during the period of intake dredging would not satisfy this objective as pre-operational data were not collected under com-parable conditions.
The staff is of the opinion that the number of impinged organisms during the dredging activity might rise initially as organisms residing in the canal are driven towards the intake screens. However, after this short initial rise, the numbar impinged should be less than that impinged during normal operation be-cause the noise and turbidity associated with the dredging activity would serve as a physical deterrent to organisms in the site vicinity. The staff, therefore, concludes that weekly quantitative impingement monitoring need not be conducted during the period of the intake canal nodifications.
l However, the staff recommer:s that the qualitative visual ncoitoring of the intake screens should continue to be conducted daily as ; check against any unforeseen l
factors which might cause impin;erent to be excessive during the pericd of intake dredging. The licensee has agreed to this rodification to its request and the wording of ETS 3.1.3 will retain the requirement for the visual monitoring during the period of the intake caral -odification.
The wording cf ETS 3.1.3 will also i
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. indicate that the intake canal modification is that described it: Permit No.
09-20-4006 issued by the State of Florida Department of Environmental Regulation.
This suspension of the quantitative impingement monitoring program during the period of the intake canal nodification has been informally discussed with Region IV of the U. S. Environmental Protection Agency.
They indicated that the temporary suspension of this monitoring program is not inconsistent with their requirements on the Crystal River Station in the National Pollutant Dis-charge Elinination System (NPDES) Permit or study plans related to 316(a) or (b) demonstrations.
3.
Cor.clusion and Basis for Ne ative Declaration Cn the basis of the foregoing analysis, we conclude that there will be no en-vironmental impact attributable to the suspensior, of the quantitative impingement ronitoring program during the intake canal modification.
Having made this deter-nination, the Commission has further concluded that no environmental impact state-rent for the prcposed action need be prepared and that a necative declaration to j
- nis effec: is appropriate.
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