ML19340A445

RO 77-108E:on 770830-31,fish Impingement on Intake Screens Exceeded Tech Specs Limit.No Cause Given

ML19340A445
Person / Time
Site:	Crystal River
Issue date:	09/15/1977
From:	FLORIDA POWER CORP.
To:
Shared Package
ML19340A440	List: ML19340A438 ML19340A445
References
NUDOCS 8003260783
Download: ML19340A445 (1)

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ENVIRONMENTAL LICENSEE EVENT REPORT (77-108E)

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1. Facility: Crystal River Unit #3

2. Report Date: September 15, 1977

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3.- Occurrence Date: ' August 30-31, 1977

4. Identification of Occurrence: a i

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.

i 5. Conditions Prior to Occurrence:

r Unit #1 - All water circulation pumps operational. - -

Unit #2 - One of four water circulation pumps non-operational

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-for 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br />.

Unit #3 - All water, circulation pumps operational.

6. Description of Occurrence:

4 During the period 0900 August 30, 1977 to 0900 August 31, 1977 57.79 kg of fish and shellfish were impinged on the intake screens of Crystal River Units 1, 2 and 3. Of the 57.79 kg ,

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impinged, Unit 3 accounted for 31.49 kg (54% of total-). One' 2

consnercially unimportant species, the batfish, accounted for .

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21.49 kg (37% of total). Two commercially utilized specieh, the pink shrimp and the blue crab accounted for 29.35 kg (51% of total) Impingement of all other commercially utilized l

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species was less than 1 kg during the period in question. The i remaining biomass impinged was distributed among several species of fish and shellfish. -

7. Designation of Apparent Cause of Occurrence:

No unusual or periodic events were noted prior to or during the occurrence.

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8003260 7 3

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