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Phillips 66 (2538), Lake Charles

Releases of Sheen

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
133187

2011-08-10		Outfall 004
Cause: 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.

Followup: Yes

Notes: 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.
130873

2011-04-26		outfall 002 from triangle pond
Cause: Triangle pond filled due to rainfall event and some residual oil was carried out with the storm water when the triangle pond flowed to outfall 002.

Followup: No

Notes: New booms were installed and oil absorbent pads were put out to mitigate sheen. No sheen went past the concrete retaining walls.
147429

2013-03-20
Cause: Sheen observed in Bayou Verdine. Stated that work is being conducted under the guidance of Bayou Verdine Removal Action Consent Decree; this was an anticipated sheen that is generated from the debris removal operations.

Followup: No

Notes: The sheen was contained and cleaned up by on-site personnel. SPOC states that sheen was less than 100 square feet with unknown color.