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Louisiana Refinery Accident Database

Chalmette Refining (1376), Chalmette

LDEQ Accident Report

Pollutants Released

Accident Classified As: Reportable Quantity

Cause of Problem: Under Investigation

Personnel observed a material leaking at Tank 61 from the roof drain area in the dike area. Upon identification, personnel mobilized and safely blocked in the roof drain and dike valve in the containment area. Due to heavy rains the roof drain and dike valve were open for draining the area per normal work practice. CRLLC personnel noticed some hydrocarbon had entered the concrete drain ditch, where it was contained. While blocking in the roof drain, personnel noted that hydrocarbons and water partially covered the north side of the tank roof. The tank immediately began to be pumped down to empty the contents. The tank was pumped down to a level that completely exposed the tank roof. After identification of the issue, the area was foamed to minimize emissions, and cleanup began immediately. CRLLC is conducting a failure analysis of the tank roof to determine the cause of the failure.

Discharge Preventable - Yes

CRLLC is conducting a failure analysis of the tank roof to determine the cause of the failure and preventability determinations.

Notes/Remedial Actions

After isolating the leak, operators used foam to minimize volatilization and vacuum trucks were utilized to clean up the area. All material in Tank 61 was transferred to Tank 60 to allow operators to address the Tank 61 floating roof.