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Valero (26003), Norco
LDEQ Accident Report
| Accident # | 99376 |
| State Police # | 07-05452 |
| Accident Date | 2007-09-12 |
| Report Date | 2007-09-19 |
| Follow-up Date | 0000-00-00 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Sulfur Dioxide | 0 h 41 m | Thermal Oxidizer #1 | NO | YES | NO | BRQ |
| Hydrogen Sulfide | 0 h 41 m | Thermal Oxidizer #1 | NO | NO | NO |
Accident Classified As:
Cause of Problem: Process Upset
On September 12, 2007, Valero had excessive Sulfur Dioxide emissions due ot a process upset in its SRU 3700 unit. Feed to the unit contained a level of hydroCarbon that resulted in a shut down of the Thermal Oxidizer. This oxidizer (3700 TOX) shut down at 20:05 and 20:16 hrs the same day for the same reason.
Discharge Preventable -
Notes/Remedial Actions
Oxygen going to the SRU 3700 was increased in order to stabilize the unit.
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