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Motiva Enterprises (1406), Norco
LDEQ Accident Report
| Accident # | 96958 |
| State Police # | 07-1938 |
| Accident Date | 2007-06-10 |
| Report Date | 2007-06-10 |
| Follow-up Date | 2007-06-15 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Flammable Gas | 17m | relief valve at RCCU | NO | NO | YES | 85,445.0 pounds |
| Volatile Organic Compounds (VOCs) | 17m | relief valve at RCCU | NO | NO | YES | 85,445.0 pounds |
| Highly Reactive Volatile Organic Compounds (HRVOCs) | NO | NO | NO | 64,091.0 |
Accident Classified As: Reportable Quantity
Cause of Problem: Equipment Failure
Depropanizer column relief valve (RV-7207) failed at the Residual Catalytic Cracking Unit, prematurely relieving below its set pressure.
Discharge Preventable - No
Not preventable due to the fact that RV-7207 was properly maintained and has met all inspection criteria.
Notes/Remedial Actions
Valve was isolated to stop release, "employed proper mitigation steps for alternate relief protection to prevent further environmental impact," valve removed, sent off for repair and reinstalled. It was noted that there was a noise associated with the RV piping at the time of the release--one complaint received.
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