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Shell Facility (3462), St. Rose
LDEQ Accident Report
| Accident # | 99717 |
| State Police # | 07-05757 |
| Accident Date | 2007-09-24 |
| Report Date | 2007-09-27 |
| Follow-up Date | 2000-00-00 |
| Follow-up: | No |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Benzene | 8h 40m | 5-77 (St. Rose Flare) | NO | NO | YES | 10.4 pounds |
| Carbon Monoxide | 8h 40m | 5-77 (St. Rose Flare) | NO | YES | NO | 5,128.0 pounds |
| Ethylbenzene | 8h 40m | 5-77 (St. Rose Flare) | NO | NO | YES | 1,000.2 pounds |
| Hexane | 8h 40m | 5-77 (St. Rose Flare) | NO | NO | NO | 5,001.2 pounds |
| Nitrogen Oxide | 8h 40m | 5-77 (St. Rose Flare) | NO | YES | YES | 34.0 pounds |
| Particulate Matter | 8h 40m | 5-77 (St. Rose Flare) | NO | YES | NO | 5,004.0 pounds |
| Sulfur Dioxide | 8h 40m | 5-77 (St. Rose Flare) | NO | YES | NO | 502.0 pounds |
| Toluene | 8h 40m | 5-77 (St. Rose Flare) | NO | NO | NO | 100.9 pounds |
| Volatile Organic Compounds (VOCs) | 8h 40m | 5-77 (St. Rose Flare) | NO | NO | YES | 5,077.0 pounds |
| Xylene | 8h 40m | 5-77 (St. Rose Flare) | NO | NO | NO | 101.2 pounds |
Accident Classified As:
Cause of Problem: Power Failure
Power failure allowed two pressure relief valves to open to the flare to prevent over-pressuring of the unit
Discharge Preventable - No
Notes/Remedial Actions
The power failure was unexpected. They secured the process unit until the power was restored. Electrical support will work with the energy supplier to understand what caused the failure and take appropriate corrective action to prevent reoccurence. Word for word what happened the prior month
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