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Motiva Enterprises (1406), Norco
LDEQ Accident Report
| Accident # | 96791 |
| State Police # | 07-1865 |
| Accident Date | 2007-06-05 |
| Report Date | 2007-06-11 |
| Follow-up Date | 2007-11-06 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Volatile Organic Compounds (VOCs) | 26h 40m | HCU flare | NO | NO | YES | 495.8 pounds |
| Hydrogen Sulfide | 26h 40m | HCU flare | NO | NO | NO | 49.8 pounds |
| Flammable Gas | 26h 40m | HCU flare | NO | NO | YES | 3,671.6 pounds |
Accident Classified As: Reportable Quantity
Cause of Problem: Equipment Failure
Control valve 755 malfunctioned, sending hydrogen sulfide gas to flare.
Discharge Preventable - No
Notes/Remedial Actions
Operations closed instrument air supply line, causing valve to go into fail-safe open position. Faulty instrument air filter was repaired and re-established instrument airflow to valve. To prevent recurrence, instrument air supply filter and parts of controller were replaced.
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