ML19317G268

LER 78-010/04X-0:on 780307-08,biomass of Fish & Shellfish Impinged on Intake Screens of Units 1,2 & 3 Exceeded 50 Kg Per 24-h Reporting Level.Oil Barge Entering Intake Canal During Sampling Period May Have Been Cause

ML19317G268
Person / Time
Site:	Crystal River
Issue date:	03/28/1978
From:	Cooper J FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19317G262	List: ML19317G261 ML19317G268
References
LER-78-010-04X, LER-78-10-4X, NUDOCS 8002280892
Download: ML19317G268 (1)

Text

~, , .

g N ENVIRONMENTAL LICENSEE EVENT REPORT 78-010/04K-0

1. Facility: Crystal River Unit #3 .

2. Report Date: 28 March 1978

3. Occurrence Date: March 7-8, 1978 (determined at plant 27 March 1978) 4 Identifi:stion of Occurrence:

Biomass of fish and shellfish impinged on the intake screens of Units 1 & 2 and 3 exceeded the 50 kg/24hr reporting level of Section 3.1.3 of the  ;

Environmental Technical Specifications.

5. Conditions Prior to Occurrence:

Unit il - All water circulation pumps operational.

Unit 12 - All water circulation pumps operational.

Unit 13 - One of four water circulation pumps operational (Unit down). '.

7' I l

6. Description of Occurrence:

During the period 0900 7 March 1978 to 0900 8 March 1978, at least 82.61 kg of fish and shellfish were impinged on the intake screens at Crystal River Units ,

1, 2, and 3. Of the 82.61 kg impinged, Unit 3 accounted for .i.56 kg (18% of J

total). Three finfish species accounted for 59.'80 kg (72% of coctl); batfish '

l 50%, pinfish 123, striped burrfish 10%. 'Two commercially utilized 2...'.lfish 4

f species, the pink shrimp and the blue crab accounted for 14.60 kg (18% of total).

The remaining oiomass impinged was distributed among several species of fish and shellfish.

The impingement reported is an underestimate of the actual impingement because the plant staff at Units 1 and 2 operated the intake screens at an unauthorized j time during the 0300-0900 senpling period which altered the impingement sample and allowed scTe of the smaller organisms impinged to be lost. Plant staff per-sonnel have since been instructed as to the importance of the sampling programs at CR #1, 2, and 3 to ensure against future occurrences of this type.

7. Designation of Apparent Cause of Occurrence:

The following unusual or periodic event was notsd during the occurrence:

One oil barge entered the intake canal during the sampling period.

This event may have been partially responsible for the impingement observed.

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