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Marathon Ashland Petroleum (3165), Garyville

LDEQ Accident Report

Accident #152677
PDF AvailablePDF
State Police #13-05370
Accident Date2013-12-04
Report Date 2013-12-12
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
Volatile Organic Compounds (VOCs)6h 45mPipe leak at a pump in Unit 10 Crude unitNONOYES711.0 pounds
Benzene6h 45mPipe leak at a pump in Unit 10 Crude unitNONOYES1.0 pounds
Xylene6h 45mPipe leak at a pump in Unit 10 Crude unitNONONO7.3 pounds
Compressed Flammable Gas6h 45mPipe leak at a pump in Unit 10 Crude unitNONOYES69.7 pounds
Flammables6h 45mPipe leak at a pump in Unit 10 Crude unitNONONO641.5 pounds

Accident Classified As: Below Reportable Quantity (BRQ)

Cause of Problem: Corrosion

On December 4 at approximately 8:00 hours, there was a pinhole leak in 2 inch insulated piping. Corrosion caused the pinhole. Report states that none of the emitted pollutants are above reportable quantity levels. However, the RQ level for Flammable Liquids was exceeded during this event.

Discharge Preventable - Yes

API piping inspection standards changed to include insulated piping in this temperature range.

Notes/Remedial Actions

The unit was shut down to repair the leak as the piping could not be isolated. This piping will be routinely inspected and an upstream block valve was added to enable the isolation of this line. The material released was crude oil. It was entirely contained within the unit and routed to the Oily Water Sewer system.