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Motiva Enterprises (1406), Norco

Releases of Mercaptan

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
119903

2009-12-07		Propane tank truck rack
Cause: Upon investigation it was determined that a truck driver failed to close the loading and flare valve after loading the Motiva propane tank truck rack. By failing to close the valves a mercaptan gaseous compound mixture was released.

Followup: Yes

Notes: After driver realized the vent valve on the Motiva propane truck tank was left open, it was immediately closed. After sampling analysis was done, it was determined that the amount of mercaptan released did not exceed reportable quantities or permit limits. In the incident report there are two different state police incident numbers reported. On the refinery report the state police case number is 09-06612, whereas for the LDEQ incident report the number is s09-3932