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Valero (1238), Meraux
LDEQ Accident Report
| Accident # | 76080 |
| State Police # | 05-0067 |
| Accident Date | 2005-01-10 |
| Report Date | 2005-01-17 |
| Follow-up Date | 0000-00-00 |
| Follow-up: | No |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Sulfur Dioxide | 2 Hrs 20 M | South Flare - EPN # 3 - 77 | NO | YES | NO | 29,362.0 pounds |
| Sulfur Dioxide | 1 Hr 30 M | #3 Sulfur Recovery Unit Incinerator | NO | YES | NO | 239.0 pounds |
| Sulfur Dioxide | 1 Hr 30 M | South Flare - EPN # 3 - 77 | NO | YES | NO | 8,595.0 pounds |
| Sulfur Dioxide | 1 Hr 30 M | #3 Sulfur Recovery Unit Incinerator | NO | YES | NO | 212.0 pounds |
Accident Classified As:
Cause of Problem: Instrument Failure
A contract programmer set the equipment so that it was "too sensitive" to process paremeters and thus triggered a safety shut down of the unit.
Discharge Preventable - No
Notes/Remedial Actions
Two incidents were reported in one letter (see next row). The original incident released a big volume of SO2 through the South Flare; restarting produced the emissions in the Tail Gas Treater. The report specifically says that this was NOT due to human error (despite the programmer's setting)
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