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Valero (26003), Norco

Releases of Arsenic

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
111449

2008-12-15		MSCCU
Cause: during catalyst removal from MSCCU, a breach of containment resulted in release of catalyst to ground and nearby areas

Followup: Yes

Notes: Stopped catalyst removal process immediately and clean up the impacted area. Revise catalyst loading and unloading procedure to require gauging of hoppers with a temperature gun or heat scan to allow the level to be tracked with less frequent manual gauging. Set up a log to make sure procedure is followed.		80.0 pounds