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Phillips 66 (2538), Lake Charles

LDEQ Accident Report

Accident #133187
State Police #11-04787
Accident Date2011-08-10
Report Date 2011-08-10
Follow-up Date 2011-08-16
Follow-up: Yes

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
SheenNo information GivenOutfall 004NONONO 

Accident Classified As: No Information Given

Cause of Problem: Under Investigation

Contract employee observed a sheen (6" x 12") in a tributary leading to Bayou Verdine. Conoco's outfall 004 discharges this to this tributary. Conoco said that they observed no sheen before or immediately after outfall 004. Conoco had an ongoing investigation of the unidentified sheen in the area. The facility placed a boom to contain the sheen from entering Bayou Verdine. The facility inspected all potential sources and found no leaks. Follow up report says that the source of the sheen was not identified but due to subsequent monitoring and testing it is believed to have originated onsite, likely a combination of organic decomposition and runoff from legacy operations.

Discharge Preventable - Under Investigation

Source has not been confirmed at this time.

Notes/Remedial Actions

Environmental personnel responded. They used absorbent pads for clean up. Engineering alternatives are being evaluated to determine the most effective mitigation to prevent a sheen from this location in the future. The sheen was on a tributary of the Bayou Verdine, and as result of the placement of the booms, did not impact the bayou.