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ExxonMobil Refinery (2638), Baton Rouge
LDEQ Accident Report
| Accident # | 112910 |
| State Police # | 09-00854 |
| Accident Date | 2009-02-20 |
| Report Date | 2009-02-26 |
| 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 |
| Carbon Dioxide | 3m | Bateman Lake Natural Gas header | YES | NO | NO | 53.1 pounds |
| Nitrogen | 3m | Bateman Lake Natural Gas header | NO | NO | NO | 33.3 pounds |
| Methane | 3m | Bateman Lake Natural Gas header | YES | NO | YES | 1,966.3 pounds |
| Ethane | 3m | Bateman Lake Natural Gas header | NO | NO | YES | 63.8 pounds |
Accident Classified As: Reportable Quantity
Cause of Problem: Human Factors
Technician working on pressure instrument did not notify unit operating controller. Malfunction caused pressure control valve to open, which caused the pressure in the Bateman Lake Natural Gas header to exceed that of safety vavle set point.
Discharge Preventable - Yes
Notes/Remedial Actions
A total of 2030 pounds of flammable vapor was release which exceeds RQ. Pressure control valve was taken out of automatic control and placed into manual control.
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