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Marathon Ashland Petroleum (3165), Garyville
LDEQ Accident Report
| Accident # | 78037 |
| State Police # | 05-02202 |
| Accident Date | 2005-04-05 |
| Report Date | 2005-04-11 |
| Follow-up Date | 0000-00-00 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| C3 | 1 h 17 m | North Flare (EIQ No. 83-74) | NO | NO | NO | 10.2 pounds |
| C3= | 1 h 17 m | North Flare (EIQ No. 83-74) | NO | NO | NO | 32.5 pounds |
| iC4 | 1 h 17 m | North Flare (EIQ No. 83-74) | NO | NO | YES | 28.9 pounds |
| nC4 | 1 h 17 m | North Flare (EIQ No. 83-74) | NO | NO | YES | 7.1 pounds |
| isoC4= | 1 h 17 m | North Flare (EIQ No. 83-74) | NO | NO | NO | 12.6 pounds |
| 1-C4= | 1 h 17 m | North Flare (EIQ No. 83-74) | NO | NO | NO | 10.9 pounds |
| t-C4= | 1 h 17 m | North Flare (EIQ No. 83-74) | NO | NO | NO | 12.2 pounds |
| c-C4= | 1 h 17 m | North Flare (EIQ No. 83-74) | NO | NO | NO | 8.4 pounds |
Accident Classified As:
Cause of Problem: Human Factors
The Unit 42 boiler was inadvertently tripped, along with the air compressor, which caused an upset condition at the Unit 26-FCCU. During start-up of the unit, the Debutanizer overpressurized and vented to the North Flare.
Discharge Preventable - Yes
Notes/Remedial Actions
"Operations personnel took all actions possible to minimize emissions."
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