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Chalmette Refining (1376), Chalmette
LDEQ Accident Report
| Accident # | 91457 |
| State Police # | 06-06486 |
| Accident Date | 2006-10-17 |
| Report Date | 2006-10-24 |
| 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 | 23 h 42 m | AE-AOA-05-0109 EPN 29 | NO | YES | NO | 30.0 pounds |
| Nitrogen Oxide | 23 h 42 m | AE-AOA-05-0109 EPN 29 | NO | YES | YES | 8,293.0 pounds |
Accident Classified As:
Cause of Problem: Maintenance/Procedures
release occurs during major turn around of refinery. Planned system outages created higher than usual operating pressure on the WGS and AMU. Additionally, on 10/13, the stream was re-routed (misaligned) through a line with an unidentified check valve. Subsequent attempts to push liquid through the AMU line resulted in increased pressure on the WGS.
Discharge Preventable - Yes
Notes/Remedial Actions
Investigation ongoing. PSV set pressure was raised to allow for higher head pressure events at WGS without flaring. Detailed investigation ongoing.
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