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ExxonMobil Refinery (2638), Baton Rouge

LDEQ Accident Report

Accident #128383
State Police #10-07359
Accident Date2010-12-30
Report Date 2010-01-05
Follow-up Date 0000-00-00
Follow-up: No

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
Oil1 hr 40mOutfall 003NONONO0.3 gallons

Accident Classified As: Below Reportable Quantity (BRQ)

Cause of Problem: Weather

ExxonMobil received over 3 inches of rain in an eight hour period during the evening of 12/29/10, and this large volume and intensity of water resulted in an oil sheen. Material was released through Outfall 003 into Mississippi River via Callahan's Bayou. The size and color of the sheen indicated a release of approximately .25 gallons of oil per National Oceanic and Atmospheric Administration sheen estimating guidance.

Discharge Preventable - No

This release was caused by adverse weather.

Notes/Remedial Actions

Sheen boomed off & cleaned up. Additionally, boom at Callahan's Bayou that was found broken was replaced. Duration of release was approximately 1h 40m from discovery to cleanup completion. This incident will be reviewed through the Refinery's stormwater compliance program, STOP (Sewer Tracking and Oil Prevention) to evaluate responses to future potential rainstorms.