ML19340A464

From kanterella
Jump to navigation Jump to search
RO 77-96E:on 770801-02,fish Impingement on Intake Screens Exceeded Tech Specs Limit.Probably Caused by Coal & Oil Barges & Maint Dredge Entering & Exiting Intake Canal During Sampling Period
ML19340A464
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 08/18/1977
From:
FLORIDA POWER CORP.
To:
Shared Package
ML19340A461 List:
References
NUDOCS 8003260803
Download: ML19340A464 (1)


Text

....

._m Os s +.

^

O ENVIRONMENTAL LICENSEE EVENT REPORT 96E l

1.

Facility:. Crystal River Unit #3 2.

Report Date:

August 18, 1977 3.

Occurrence Date: August 1-2, 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/24hr reporting leml of section 3.1.3 of the Environmental Technical Specificaticas.

1 5.

Conditions prior to Occurrence:

Unit #1 - All water circulation pumps operational.

Unit.f2 - All water circulation pumps operational.

Unit #3 - One of four water circulation pumps non-operational for entire sampling period.

6.

Description of Occurrence:

During the period 0900 August 1,1977 to 0900 August 2,1977 58.81 kg of fish and shellfish were impinged on the intake screens of Crystal River Units 1, 2 and 3.

Of the 58.81 kg impinged, Unit 3 accounted for 24.37 kg (41% of total). One conmercially unimportant species, the batfish accounted for 32.85 kg (56% of total). Two consnercially utilized ' species, the pink shrimp and the blue crab accounted for 13.05 kg (22% of total). ' Impingement of all other coninercially utilized j

species was.less than 1 kg during the period in question. The remaining biomass impinged was distributed among several species 4

of fish and shellfish.

7.

Designation of Apparent Cause of Occurrence:

The following unusuO or periodic events were noted prior to -

or during the occurrence:

.1.

Two' coal barges and one oil barge left the intake canal j

~ during-the sampling period.

2.

On, m al barge entered the intake canal during the sampling period.

4

~

-3.

A maintenance dredge entered and exited the intake canal during the sampling period.

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

. 8003260 8 b e.-

e m

  • r we'-

w w=

==

7 m

w ute-T my-t y7g-Ms

-tp-t---T*

-'TN+w7'Wwrip-'p w-

'