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Marathon Ashland Petroleum (3165), Garyville

LDEQ Accident Report

Accident #92878
State Police #06-07687
Accident Date2006-12-24
Report Date 2006-12-29
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
Butane0 h 15 mConservation vents Tank 55-5(EQI No. 44-74/EQT No. 104)NONOYES134.9 pounds

Accident Classified As:

Cause of Problem: Instrument Failure

Tank 55-5 high pressure equal to 2 inches of water column caused the tank conservation vents to open to the atmosphere. The pressure transmitter failed giving a false low pressure in tank 55-5.

Discharge Preventable - No

Notes/Remedial Actions

Currently under investigation. BELOW REPORTABLE QUANTITY.