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Valero (26003), Norco

Releases of Hydrocarbon

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
77067

2009-02-18		Fluid catalytic cracker off gas pipeline
Cause: Originally thought to be Starting up unit after maintenance turn around. Follow up states that upon investigation discovered a leak on the fluid catalytic cracker off gas pipeline.

Followup: No

Notes: Courtesy notice
No LDEQ Reported

2007-11-12		FLARE - Flares #1 and #2
Cause: Due to a malfunction governor on the turbine and a malfunction pilot valve, the Coker Wet Gas Compressor tripped, resulting in the overhead receiver relieving to the flare. The vendor was contacted for assistance and it was discovered that there was a malfunction of the lube oil system regulator. No documentation on the proper operation of the lube oil regulator system could be found.

Followup: No

Notes: 1) Replace pilot valve. 2) Contact vendors to establish the correct settings, procedures and proper labeling for the operation fo the lube oil pressure regulating system. 3) Add a three second delay time on the low lube oil pressure shut down. 4) Audit refinery for similar mechanical systems. 5) Train instrumentation group on the operation and maintenance of regulator systems.		4,560.0 pounds