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Marathon Ashland Petroleum (3165), Garyville
Releases of Xylene
| LDEQ Accident Number Accident Date |
Point Source(s) | Notes | Amount of Release |
| 81231 2005-08-10 | Outfall #002 | Cause: BTEX (Benzene,Toluene,Ethylbenzene,Xylene) sample taken prior to discharging test water showed non-detect levels. However, a follow-up sample collected during the discharge disclosed levels above permitted levels of BTEX in water. Followup: No Notes: Facility is "working with the lab to avoid any reoccurrances". BTEX Levels equaled 401 ppb. Limit is 250 ppb. 151 ppb in excess. | |
| 80153 2005-06-28 | Tank 120-6 (EIQ No. 16-74 and EQT 76) Tank 120-6 (EIQ No. 16-74 and EQT 76) Tank 120-6 (EIQ No. 16-74 and EQT 76) | Cause: It is suspected that there was a failed level indicator on 6/26/05 which led to the product being on the roof of the tank. The cause of the failure in unknown. Followup: Yes Notes: The product was transferred to a finished gasoline storage tank. The cause of the failure and subsequent leak are still unknown and are awaiting the results of the investigation. | 45.0 pounds |
| 152677 2013-12-04 | Pipe leak at a pump in Unit 10 Crude unit | Cause: 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. Followup: No Notes: 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. | 7.3 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. | ||
| 149428 2013-06-29 | flange on process line in U212 Platformer Unit | Cause: On June 29, a small leak and hydrogen fire was observed on the 48" flange on the process piping going from Cell 2 of the Unit 212 Charge Heater to Reactor #2. The leak was hair line sized in width and no larger than 1" around the circumference of the flange. Followup: No Notes: Steam was applied to the flange to extinguish the flame and the flange was hot bolted to secure the leak. Once investigation is complete, recommendations will be implemented. There were no known offsite impacts. | 0.3 pounds |
| 149432 2013-06-29 | leak from process line in U263 piperack | Cause: On June 29, a pinhole leak was discovered in the LPG feedline from U212 to U222. Followup: No Notes: The line was purged with nitrogen and isolated for repairs. The Shift Emergency Response Team was activated and fire monitors were put on the leak to suppress any vapors. Reduced the U212 charge rate to minimize the leak. The line was isolated at battery limits in U222 and U212 to stop the leak. Once the investigation is complete, recommendations will be implemented. | 0.3 pounds |
| 148876 2013-05-22 | U212 Platformer unit | Cause: On May 22, a small leak and hydrogen fire was observed on the 48" flange on the process piping going from cell 1 of the Unit 212 Charge Heater to Reactor #1. The leak was pinhole sized in width and no larger than 1" around the circumference of the flange.
The emission point involved was a flange on a process line in the U212 Platformer unit. Followup: Yes Notes: Steam was applied to the flange to extinguish the flame and the flange was hot bolted to secure the leak. Once the investigation is complete, recommendations will be implemented. An additional followup on 10/23/13 corrected the initial followup report's emissions data regarding greenhouse gas releases. | 0.0 pounds |
| 156739 2014-06-10 | pipe containing crude oil in Unit 10 - Crude unit | Cause: A 3/4-inch process pipe containing crude oil connecting the desalters sheared causing loss of containment. Crude oil exited the pipe and was collected in the oily water sewer. Followup: No Notes: The piping was blocked in to eliminate the amount of crude oil leaking from the piping. All crude that leaked landed on the concrete slab in the unit and was collected by washing it into the oily water sewer. | 41.0 pounds |
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