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Louisiana Refinery Accident Database

Motiva Enterprises (2719), Convent

LDEQ Accident Report

Pollutants Released

Accident Classified As: Below Reportable Quantity (BRQ)

Cause of Problem: Human Factors

While in the process of loading diesel at Dock No. 2, approximately 15 gallons of product spilled to the secondary containment on the dock with approximately 2 gallons being released to the river from the secondary containment. The cause of the spill was the result of unintentionally leaving Dock Arm #3 drain valve open during the initial stages of the transfer. The dock arm inboard drain valve was lined up to the dock slop oil tank rather than being in the closed position per the loading procedure.

Discharge Preventable - Yes

Notes/Remedial Actions

Diesel spilled on the dock was pumped back into the slop system. The diesel that fell to the grating below the dock was cleaned with absorbent pads and disposed of as oily contaminated industrial solid waste. Any diesel that reached the river was dispersed and naturally attenuated. To prevent recurrence of the incident, the penetration through the decking which allowed the diesel to reach the river will be sealed. Motiva is also evaluating a better way to manage the drain valve position and ensure the slop system operates as designed. A coaching session has been held with the dock operator and the importance of following procedures has been emphasized.