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Calcasieu Refining (3585), Lake Charles

Causal Factor: Equipment Failure

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

tank 300
Cause: Crude oil released "due to an apparent fault in the tank floor."

Followup: No

Notes: Transferred oil from leaking tank to another tank, some crude oil recovered via vacuum truck, impacted soil excavated and is "staged at the refinery awaiting waste characterization sample results" and will be hauled off site for disposal. "No off-site impact resulting from this incident."
Crude Oil: 4,200.0 gallons

Tank 313 crude oil storage tank
Cause: The internal floating roof in Tank 313 sank in the tank and stopped controlling emissions from the tank.

Followup: No

Notes: Crude oil from tank 313 was removed and is being cleaned, inspected, and repaired. No LDEQ report included. BRQ: Tank 313 had all its contents removed and was cleaned so that repairs can be made, after which the tank will be put back into crude oil storage service.


Soft Water Tank TK-105
Cause: On 9/9/14, a refinery operator discovered crude oil overflowing from TK-105, a soft water tank. The oil was accumulated on the ground in the area of TK-105 and south of the tank under the nearby pipe rack. The oil, some of it floating on standing water, was covering an area of approximately 1720 square feet. The release occurred when the soft water pump at TK-105 failed and crude oil back up the soft water injection line and into the soft water tank. A check valve in this line failed open allowing the oil to reach the tank.

Followup: No

Notes: The failed check valve has been replaced with a more reliable type of check valve. Calcasieu Refining also installed an alarm to alert operators when the soft water pump fails. Contaminated soil was removed from the area and Micro-Blaze (microbial agents that degrades hydrocarbons) was applied to the area. Clean soil was moved in to replace removed soil.
Crude Oil: 210.0 gallons