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ExxonMobil Chemical Plant (286), Baton Rouge

Releases of Hydrogen Chloride

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
159072

2014-09-27		RLA-1 Unit
Cause: On September 27, 2014 the Baton Rouge Chemical Plant RLA-1 unit experienced an unplanned flaring event during unit start-up. At the onset of flaring, cooling water was increased to unit heat exchangers to control operating pressures and mitigate environmental impact. The incident was under investigation to determine root cause as of 10/3/14. It has been determined that this incident is considered an unauthorized discharge and not part of routine start-up operations.

Followup: No

Notes: At the onset of flaring, cooling water was increased to unit heat eschangers to control operating pressures and mitigate the environmental impact. The incident is under investigation to determine the root cause and provide mitigating steps to prevent ercurrence.		9,824.0 pounds