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ExxonMobil Chemical Plant (286), Baton Rouge
LDEQ Accident Report
| Accident # | 107422 |
| State Police # | 08-04421 |
| Accident Date | 2008-07-22 |
| Report Date | 2010-03-23 |
| 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 |
| Benzene | 2 m | Tanks # 8 and 9 | NO | NO | YES | 23.0 pounds |
| 1,3-Butadiene | 2 m | Tanks # 8 and 9 | NO | NO | YES | 44.0 pounds |
| Benzene | 2m | Hydrocarbon recovery system, tanks 8 and 9 | NO | NO | YES | |
| 1,3-Butadiene | 2m | Hydrocarbon recovery system, tanks 8 and 10 | NO | NO | YES | |
| Flammable Vapor | 2m | Hydrocarbon recovery system, tanks 8 and 11 | NO | NO | YES |
Accident Classified As: No Information Given
Cause of Problem: Process Upset
Pressure vacuum vent for hydrocarbon recovery on storage tanks #8 and 9 exceeded for one minute. During transfer of material to storage tanks the pressure exceeded the pressure vacuum setting and VOC's were released.
Discharge Preventable - No Information Given
Notes/Remedial Actions
Pressure vacuum vent for hydrocarbon recovery on storage tanks 8 and 9 exceeded for 1 m. Two other events occurred within 24 hours of this event and will be addressed seperately. During transfer of material to storage tanks 8 and 9 at the WILA (wastewater improvement unit) the pressure exceeded the pressure vacuum setting and VOCs were released. The operations personnel immediately stopped pumping the material until the overpressure situation was resolved. They were investigating the source of volatile material in the WW. RQ exceeded for benzene and 1,3-butadiene.
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