ML19308D527

RO 77-31E:on 770330-31,fish Impingement on Intake Screens Exceeded Tech Specs Limits.Caused by Barge Traffic

ML19308D527
Person / Time
Site:	Crystal River
Issue date:	04/25/1977
From:	FLORIDA POWER CORP.
To:
Shared Package
ML19308D526	List: ML19308D525 ML19308D527
References
NUDOCS 8002280965
Download: ML19308D527 (1)

Text

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,(m} ENVIR0KriENTAL LICENSEE EVENT REPORT (# 77-31E )

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1. Facility: Crystal River Unit #3

2. Report Date: 25 April 1977

3. Occurrence Date: 30-31 March, 1977

4. Identification of Occurrence:

Biomass of fish and shellfish i= pinged 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 #1 - All water circulation pumps non-operational (unit 1 down, -

maintenance). .

Unit #2 - 1 of 4 water circalation pumps non-operational from 0630 to p, 0810 on 3/31/77, all others operational.

Unit #3 - All water circulation pumps operational.

6. Description of Occurrence:

O' During the period 1000 March 30, 1977 to 1000 March 31, 1977 116.98 kg of fish and shellfish were impinged on the intake screens of Crystal River Units 1, 2 and 3. Of the 116.98 kg impinged, Unit 3 accounted for 66.28 kg (57% of total). Two com=ercially uni =portant species, the batfish and the cowfish accounted for 84.74 kg (72% of total). Two co=:ercially utilized species, the pink shriep and the blue crab eccounted for 17.48 kg (15% of total). Icpinge=ent of all other cot =ercially utilized species was less than 1 kg during the period in question. The remaining biocass i= pinged was distributed a=ong several species of fish and shellfish.

7. Designation of Apparent Cause of Occurrence:

b The following unusual or periodic events were noted prior to or during the occurrence:

Barge traffic:

One coal barge entered the intake canc1.

This event may have been partially responsible for the impinge =ent s observed.

8002 280 76f

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