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Accident # | 115515 |
State Police # | 091764 |
Accident Date | 2009-06-09 |
Report Date | 2009-06-16 |
Follow-up Date | 2009-09-28 |
Follow-up: | Yes |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Carbon Monoxide | 35 minutes | Fire | NO | YES | NO | 1,290.0 pounds |
Nitrogen Dioxide | 35 minutes | Fire | NO | YES | YES | 1,419.0 pounds |
Total Organic Carbon | 35 minutes | Fire | NO | NO | NO | 1,084.0 pounds |
Sulfur Dioxide | 35 minutes | Fire | NO | YES | NO | 13,095.0 pounds |
Hydrogen Sulfide | 35 minutes | Fire | NO | NO | NO | 91.0 pounds |
Particulate Matter | 35 minutes | Fire | NO | YES | NO | 258.0 pounds |
Carbon Monoxide | 2 hours 3 minutes | Flare 1 and 2 | NO | YES | NO | 128.0 pounds |
Nitrogen Dioxide | 2 hours 3 minutes | Flare 1 and 2 | NO | YES | YES | 24.0 pounds |
Particulate Matter | 2 hours 3 minutes | Flare 1 and 2 | NO | YES | NO | 1.0 pounds |
Volatile Organic Compounds (VOCs) | 2 hours 3 minutes | Flare 1 and 2 | NO | NO | YES | 48.0 pounds |
Sulfur Dioxide | 2 hours 3 minutes | Flare 1 and 2 | NO | YES | NO | 4,839.0 pounds |
Hydrogen Sulfide | 2 hours 3 minutes | Flare 1 and 2 | NO | NO | NO | 13.0 pounds |
Accident Classified As:
High temperature sulfide corrosion caused a pipe in vacuum tower bottom service to fail. The leak combusted, process units were upset, and ultimately shut down. Shutdown caused emission from flare.
Valero relied on process safety information and surveys that had been prepared by the previous owner. This ultimately began the series of events leading to the pipe failure.
After the fire was discovered, crude/vacuum/coker processes were suhut down and the units were depressurized to flare.
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