LA Bucket Brigade : Refinery Accident Database

About the Database

Marathon Ashland Petroleum (3165), Garyville

Releases of Hydrocarbon

LDEQ Accident Number Accident Date	Point Source(s)	Notes	Amount of Release
77730 2005-03-19	Distillate Hydroteating Unit	Cause: Leaking thermowell Followup: No Notes: Called inspector who found the leak; built encapsulation clamp; Report makes estimated leaks in pounds even though discharge was in drops
98913 2007-08-24	North Flare; weep holes on the HF Acid Shelter relief valve and the Main Fractionator Bottom relief valve	Cause: Unit 27 substation failed and shut down HF Alkylation, Butamer and Amine Treating. Failure of the bellows in Unit 27 Main Fractionator Bottoms relief valve Followup: No Notes: Claims emission was below RQ.	794.1 pounds
98913A 2007-08-24	North Flare; weep holes on the HF Acid Shelter relief valve and the Main Fractionator Bottom relief valve	Cause: Unit 27 substation failed and shut down HF Alkylation, Butamer and Amine Treating. Failure of the bellows in Unit 27 Main Fractionator Bottoms relief valve Followup: No Notes: Claims emission was below RQ.	794.1 pounds
95665 2007-04-26	North Flare	Cause: Fuse was blown causing FCCU to shut down Followup: No Notes: Claims emission was below RQ. Hydrocarbon contains 9 pounds of highly reactive hydrocarbons.	15.0 pounds
90321 2007-01-03	North Flare	Cause: Followup: No Notes: Claims emission was below RQ. No Information Given
110717 2008-11-08	3/4" bleeder valve on the 56-1301 Exchangers in Unit 56 Hydrotreater	Cause: A bleeder valve was left open and Light Cycle Oil was released. Followup: Yes Notes: Open bleeder valve blocked in and clean up begun immediately.
113740 2009-03-26	tank-500-1	Cause: There is a frac tank that drains tank-500-1 when it overflows, after drainage the valve that drains the tank was left open. Followup: No Notes: roof drain was blocked. another vacuum truck was called in to drain the tank, and on-site cleanup was started.	500.0 pounds
136157 2011-12-27	205 Coker Unit to Unit 259 North Ground Flare	Cause: The incident occurred when the facility was switching from the online drum to the blowdown drum. During the switch, the Wet Gas Compressor surge controller attempted to open the second stage spillback valve. The valve hesitated to open, causing a spillback to trip open. This caused the frac and blowdown to pressure up and the compressor to send the product to the flare until the operations pressure returned to normal. At the time of the written notification, the incident was still being investigated to determine the cause of the overpressure condition. Followup: No Notes: The unit pressure levels were automatically corrected by the wet gas compressor surge control system.	55.7 pounds
151755 2013-10-21		Cause: During an excavation in the refinery's crude unit on October 21 at 16:44 hours, hydrocarbon impacted soil was discovered adjacent to an underground pump out line. The line was previously used to deinventory the unit for maintenance activities but was decommissioned prior to 2000. Samples were taken and analyzed for various pollutants. Amounts of several hydrocarbons (2-Methylnapthalene, Napthalene, Benzo(a)pyrene, Dibenz(a,h)anthracene and Aromatics>C10-C12) in at least one of the samples exceeded standards put in place Louisiana Risk Evaluation/Corrective Action Program. Followup: No Notes: A work plan is currently being developed to determine the area of contamination. Report does not indicate if additional excavation and soil disposal is planned.