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Marathon Ashland Petroleum (3165), Garyville

LDEQ Accident Report

Accident #148646
State Police #13-27338
Accident Date2013-05-12
Report Date 2013-05-16
Follow-up Date 2013-07-09
Follow-up: Yes

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
Diesel FuelUnknownMarine Vapor Combustor Hydroseal PotNONOYES1,079.0 pounds

Accident Classified As: Reportable Quantity

Cause of Problem: Equipment Design

The release occurred when the suction line from the Marine Vapor Combustor Hydroseal Pot disconnected from the hose fitting causing spill of diesel fuel to the ground. Approximately 3.71 barrels of diesel fuel was released onto the ground.

Discharge Preventable - Yes

Notes/Remedial Actions

The suction line was reattached and secured by the operator as soon as the spill was discovered. An incident investigation was conducted to determine the cause or causes of the incident. Per the investigation, the root cause was identified as Design/Understanding need Improvement. The following recommendations will be implemented: 1) Coach/Train operators on the requirements of tying down cam lock fittings. 2) Evaluate installing a second hydroseal pump or a larger pump to maintain hydroseal drum level. 3) Train dock operators on header flushing procedure changes to prevent hydrocarbon from accessing the vapor system. 4) Evaluate installing a check valve between the dock drain piping and the separator 5) Coach/Counsel supervisors on the expectations of spill reporting. All of the recommendations are to be completed by July 18, 2013.