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Valero (1238), Meraux
LDEQ Accident Report
| Accident # | 102451 |
| State Police # | 08-00374 |
| Accident Date | 2008-01-20 |
| Report Date | 2008-01-28 |
| Follow-up Date | 0000-00-00 |
| Follow-up: | No Information Provided |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Sulfur Dioxide | 1h | Instrument Air Compressor - #3 SRU Malfunction | NO | YES | NO | BRQ |
| Hydrogen Sulfide | 1h | Instrument Air Compressor - #3 SRU Malfunction | NO | NO | NO | 51.0 pounds |
Accident Classified As:
Cause of Problem: Instrument Failure
the air register to the Incinerator failed closed, starving the Incinerator of combustion air and resulting in a flameout in the #3 SRU Incinerator. The air register malfunctioned due to ice formation in the instrument. (overnight temperatures in the area were below freezing). The root cause was moisture in the instrument air from an instrument air compressor.
Discharge Preventable - Yes
Notes/Remedial Actions
This incident was preventable because the instrument air line was not run through a drier, and MOUSA has no standard to address this issue. Remedial Measures - MOUSA published a standard that all instrument air from compressors must be run through driers.
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