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|LDEQ Accident Number
|Point Source(s)||Notes||Amount of Release|
|FLARE: #4 Unit||Cause: As the #4 unit was starting up, it had a unit swing. To relieve the pressure, flaring took place.
During the same 24 hours, the Powdered Catalyst Unit (PCLA) also underwent startup operations. Difficulties with compressor GLA-2X during startup resulted in additional flaring. As a result of this flaring, 1616 pounds of sulfur dioxide was released.
Combined, these two sources release 1,716 pounds of sulfur dioxide. However, in a follow-up letter dated March 21, 2011, ExxonMobil stated that 2,063 lbs of sulfur dioxide were released.|
Notes: This release is RQ. To end the Light Ends Flaring, pressures on the 4 West Rerun and 4 West Splitter towers were reduced. To end the PCLA flaring, compressor GLA-2X was started. To prevent recurrence, procedures will be reviewed for the Light Ends area startups following unplanned downtimes. Additionally, startup procedures for the GLA-2X compressor will be reviewed.