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Shell Chemical East (26336), Norco
LDEQ Accident Report
| Accident # | 145179 |
| PDF Available |  PDF |
| State Police # | 12-07711 |
| Accident Date | 2012-12-06 |
| Report Date | 2012-12-13 |
| Follow-up Date | 2013-06-27 |
| Follow-up: | Yes |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| 1,3-Butadiene | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | YES | 2,737.4 pounds |
| Benzene | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | YES | 585.9 pounds |
| Ethane | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | YES | BRQ |
| Ethylene | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | YES | BRQ |
| Hydrogen Sulfide | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | NO | BRQ |
| Nitrogen Oxide | 4d 19h 10m | WOGF, GO-1 EF | NO | YES | YES | 16,325.9 pounds |
| Propylene | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | YES | 34,384.0 pounds |
| Sulfur Dioxide | 4d 19h 10m | WOGF, GO-1 EF | NO | YES | NO | 1,249.5 pounds |
| Propane | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | YES | 2,588.0 pounds |
| Xylene | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | NO | 18.4 pounds |
| Toluene | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | NO | 40.9 pounds |
| Hexane | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | NO | 733.0 pounds |
| Volatile Organic Compounds (VOCs) | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | YES | 40,725.3 pounds |
| Particulate Matter | 4d 19h 10m | WOGF, GO-1 EF | NO | YES | NO | 28,811.0 pounds |
| Carbon Monoxide | 4d 19h 10m | WOGF, GO-1 EF | NO | YES | NO | 88,833.9 pounds |
| Styrene | 4d 19h 10m | WOGF, GO-1 EF | NO | NO | NO | 8.2 pounds |
Accident Classified As: Reportable Quantity
Cause of Problem: Power Failure
On December 6, 2012, Shell Chemical's GO-1 flared at the GO-1 Elevated Flare (EPN 1-90). The flaring was a result of an unexpected loss of power due to the trip of an Entergy breaker supplying the GO-1 unit. The GO-1 Unit trip caused a release to the atmosphere from the GO-1 Propylene Splitter Column.
Discharge Preventable - No
This incident was not preventable by Shell Chemical. Shell Chemical does not own the failed breaker.
Notes/Remedial Actions
GO-1 operations took the necessary steps to minimize flaring and safely return the unit to normal operating conditions and the flaring stopped. Data gathering to perform calculations and investigation are ongoing. Shell provided an amended final follow up notification on June 27, 2013. Reportable quantities for VOCs were exceeded. On December 9, 2012 the reportable quantities for Carbon Monoxide, Nitrogen Oxide, Particulate Matter, and 1,3-Butadiene were exceeded. On December 8, 2012 reportable quantities for particulate matter were exceeded. On a report dated June 27, 2013, the emissions of propylene and propane were amended.
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