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Shell Chemical East (26336), Norco
LDEQ Accident Report
| Accident # | 144282 |
| State Police # | 12-07101 |
| Accident Date | 2012-10-30 |
| Report Date | 2012-11-06 |
| Follow-up Date | 2012-11-13 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Ethylene | 1d 10H 45m | GO-1 and OL-5 Elevated Flare | NO | NO | YES | BRQ |
| Nitrogen Oxide | 1d 10H 45m | GO-1 and OL-5 Elevated Flare | NO | YES | YES | BRQ |
| Particulate Matter | 1d 10H 45m | GO-1 and OL-5 Elevated Flare | NO | YES | NO | BRQ |
Accident Classified As: Below Reportable Quantity (BRQ)
Cause of Problem: Process Upset
Shell Chemical's GO-1 Process Unit flared at the GO-1 Elevated Flare (EPN 1-90). The flaring was a result of an unexpected unit upset in GO-1 caused by the receiving of off specification feed from a supplier. Additionally, flaring occurred at the OL-5 Elevated Flare (EPN 6-84), caused by the same issue.
Discharge Preventable - No Information Given
Notes/Remedial Actions
Once the upsets occurred, GO-1 and OL-5 operations took the necessary steps to minimize flaring and safely return the units to normal operating conditions and the flaring stopped. Investigation and data gathering confirm that no RQ values or maximum permitted limits were exceeded.
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