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|LDEQ Accident Number
|Point Source(s)||Notes||Amount of Release|
|West Ethylene Purification Unit (EPLA-W)||Cause: The propylene at this time experienced higher than normal methyl acatylene and propadiene concentrations, so it was required to be flared. The root cause was suspected to have been contaminated feed, since no equipment or operational issues had been identified at EPLA-W.|
Notes: Feed rates were reduced to minimize flaring and attempt to isolate a source of contamination until the feed quality improved. LDEQ Verbal report also mentions that they also released more than 1,000 pounds of Nitrogen Oxide to the air. This was not mentioned in the 7 day letter. Facility conducted air monitoring.
|Propylene: 1,181.0 pounds|
|Flare||Cause: On December 10, 2012 at 23:40, ExxonMobil Chemical had a planned and controlled flaring incident that will last for approximately 24 hours. The flaring occurred during a planned unit start-up.|
Notes: This event was a controlled flaring event that occurred during a planned unit start-up. All emissions were permitted, no reportable quantities were exceeded.