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ExxonMobil Chemical Plant (286), Baton Rouge

Releases of Butene

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
93865

2007-02-09		gasket on flange on exchanger
Cause: A leaking gasket on a flange on an exchanger is releasing butene

Followup:

Notes: At time of report: They have a potential to exceed the RQ of 1000 pounds of flammable gas in the next 12 to 14 hours. Delay in notification because they hadn't exceeded RQ. They had made an attempt to repair the leak, which failed. They are getting ready to make another attempt. Amount of Butene released is unknown.
116503

2009-07-16		Pipe on valve stem
Cause: Packing leak on a valve stem which has a hand wheel was the source.

Followup: No

Notes: They were trying to stop the leak by repacking the valve. Written report was received by LDEQ but was not included in this report. Report stated that no RQs were exceeded.