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Motiva Enterprises (1406), Norco
LDEQ Accident Report
| Accident # | 81376 |
| State Police # | 05-05586 |
| Accident Date | 2005-08-16 |
| Report Date | 2005-08-23 |
| Follow-up Date | 2005-12-23 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Heavy Gas Oil | Tank A-410 (EPN 1021-95) | NO | NO | NO | 7,405.0 gallons | |
| Volatile Organic Compounds (VOCs) | Tank A-410 (EPN 1021-95) | NO | NO | YES | 699.9 pounds | |
| Naphthalene | Tank A-410 (EPN 1021-95) | NO | NO | YES | 4.0 pounds | |
| Benzene | Tank A-410 (EPN 1021-95) | NO | NO | YES |
Accident Classified As: Reportable Quantity
Cause of Problem: Human Factors
DU5 was starting up and the HGO routing to A-410 was changed from off-spec to the HGO treaters. During this time the bypass valve was left in the open position causing heavy gas oil to overflow from tank A-410 into the tank dike area.
Discharge Preventable - Yes
Notes/Remedial Actions
Remedial actions: Operator immediately closed bypass to LCV-100. Flow to A-410 was stopped and level pumped down. Liquid in tank dike was removed via vacuum truck. Soil excavation was conducted. To prevent recurrence, Motiva plans to develop plans to improve level control scheme and alarm management. They also plan to install a concrete liner inside the tank's secondary containment dike. PDF includes soil analytical data for soil samples tested for extractable petroleum hydrocarbons (EPH).
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