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Chalmette Refining (1376), Chalmette
LDEQ Accident Report
| Accident # | 123040 |
| State Police # | 10-1386 |
| Accident Date | 2010-04-27 |
| Report Date | 2010-05-04 |
| 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 | 25m | flare #1 | NO | YES | NO | 1,359.0 pounds |
| Particulate Matter | 25m | flare #1 | NO | YES | NO | BRQ |
| Nitrous Oxide | 25m | flare #1 | YES | YES | YES | BRQ |
| Carbon Monoxide | 25m | flare #1 | NO | YES | NO | BRQ |
| Volatile Organic Compounds (VOCs) | 25m | flare #1 | NO | NO | YES | BRQ |
| Hydrogen Sulfide | 25m | flare #1 | NO | NO | NO | BRQ |
| Ammonia | 25m | flare #1 | NO | NO | NO | BRQ |
| Benzene | 25m | flare #1 | NO | NO | YES | BRQ |
| Carbonyl Sulfide | 25m | flare #1 | NO | NO | YES | BRQ |
| Ethylbenzene | 25m | flare #1 | NO | NO | YES | BRQ |
| Naphthalene | 25m | flare #1 | NO | NO | YES | BRQ |
| Toluene | 25m | flare #1 | NO | NO | NO | BRQ |
| Xylene | 25m | flare #1 | NO | NO | NO | BRQ |
| n-Hexane | 25m | flare #1 | NO | NO | NO | BRQ |
Accident Classified As:
Cause of Problem: Maintenance/Procedures
Compressor inadvertently tripped while executing Emergency Block Valve Prevention Maintenance Program procedure on it--sent material to flare.
Discharge Preventable - No
"All the drawings and documentation indicate the EBV will not shutdown the compressor until the valve reaches 20% closed. In this instance, the EBV had only moved ~3-5% prior to suddenly shutting down the compressor." SO2 exceeded RQ.
Notes/Remedial Actions
Operations team secured the unit and started up the compressor, full evaluation and troubleshooting will be addressed during next shutdown. Will not perform EBV maintenance program in the meantime.
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