ML19340A422

RO 77-117E:on 770909-10,fish Impingement on Intake Screens Exceeded Tech Specs Limit.Possibly Caused by Oil Barge Leaving Intake Canal During Survey

ML19340A422
Person / Time
Site:	Crystal River
Issue date:	09/23/1977
From:	FLORIDA POWER CORP.
To:
Shared Package
ML19340A421	List: ML19340A420 ML19340A422
References
NUDOCS 8003260754
Download: ML19340A422 (1)

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ENVIRONMENTAL-LICENSEE EVENT REPORT 77-117E

1. Facility: Crystal River Unit #3

2. Report Date: 23 September 1977

3. Occurrence Date: 9-10 September 1977

4. Identification of Occurrence:

, Biomass of fish and shellfish impinged on the intake screens of Units 1, 2, and 3 exceeded the 50 kg/24 hr. reporting byel of Section 3.1.3 of the Environmental Technical Specifications.

5. Conditions Prior to Occurrence:

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Unit #1 - All water ' circulation pumps operational.

l Unit #2 - All water circulation pumps operational.

I l Unit #3 - All water circulation pumps operational.

l 6. Description of Occurrence: -

l During the period 0900, 9 September 1977 to 090010 September 1977, 69.33 kg of fish and shellfish were impinged on the intake screens

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of Crystal River Units 1, 2, and 3. Of the 69.33 kg impinged, Unit

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f3 accounted for 39.00 kg (56% of total). One coinnercially unimportant

species, the batfish, accounted for 11.49 kg (17% of total). Two i commercially utilized species, the pink shrimp and the blue crab ac-

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counted for 54.50 kg (79% of total). Impingement of all other com-mercia11y utilized species was less than 1 kg during the period in question. The remaining biomass impinged was distributed among several species of fish and shellfish.

7. Designation of Apparent Caus,e of Occurrence:

The following unusual or periodic event was noted during the occurrence.

l One oil barge left the intake canal during the survey.

This . event may have been partially responsible for the impingement

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observed. ~

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