05000302/LER-1978-001-04, /04X-0:on 780112-13,biomass of Fish & Shellfish Impinged on Intake Screens Exceeding 50 kg/24-h ETS Levels. Partially Caused by Coal Barges Entering & Maneuvering in Intake Canal During Sampling

/04X-0:on 780112-13,biomass of Fish & Shellfish Impinged on Intake Screens Exceeding 50 kg/24-h ETS Levels. Partially Caused by Coal Barges Entering & Maneuvering in Intake Canal During Sampling

ML19308D378
Person / Time
Site:	Crystal River
Issue date:	01/27/1978
From:	FLORIDA POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19308D373	List: 05000302/LER-1978-001-04, /04X-0:on 780112-13,biomass of Fish & Shellfish Impinged on Intake Screens Exceeding 50 kg/24-h ETS Levels. Partially Caused by Coal Barges Entering & Maneuvering in Intake Canal During Sampling
References
LER-78-001-04X, LER-78-1-4X, NUDOCS 8002270829
Download: ML19308D378 (1)

LER-1978-001, /04X-0:on 780112-13,biomass of Fish & Shellfish Impinged on Intake Screens Exceeding 50 kg/24-h ETS Levels. Partially Caused by Coal Barges Entering & Maneuvering in Intake Canal During Sampling

Event date:
Report date:
3021978001R04 - NRC Website

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ENVIRONMENTAL LICENSEE EVENT rep 0RT 78-01/04x-o V

1.

Facility:

Crystal River Unit #3 2.

Report Date: 27 January 1978 3.

Occurrence Date: January 12-13,1978 (Determined at plant 27 January 1978) 4.

Identification 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 #1 - All water circulation pumps operational.

Unit #2 - All water circulation pumps operational.

~

5 Unit #3 - All water circulation pumps operational.

6.

Description of Occurrence:

During the period 0900 January 12,1978 to 0900 January 13, 1978

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1,022.27 kg of fish and shellfish were impinged on the intake screens at Crystal River Units 1, 2 and 3.

Of the 1,022.27 kg impinged, Unit 3 accounted for 688.41 kg (67% of total). Four finfish species accounted for 83% of the total biomass; scaled sardine 55%, seacatfish 16%, Atlantic threadherring 7%, and the batfish 5%. The remaining biomass impinged was distributed among several species of fish and shellfish.

7.

Designation of Apoarent Cause of Occurrence:

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

Two coal barget ontered the intak'e canal during sampling.

2.

The two coal barges underwent considerable maneuvering near the intake screens during sampling.

3.

The scalet sardine is a schooling fish.

It is possible an entire school was entrapped in the intake canal and subse-quently impinged.

These events may have been partially responsible for the impingement observed.

C 8002270 1