CITGO PIPELINE CO

hazardous_liquid Incident —

Incident Information

Report Date
OperatorCITGO PIPELINE CO
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates30.14577, -94.40404

Cause

CauseNATURAL FORCE DAMAGE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

DUE TO VERY HEAVY RAINS IN THE AREA OF THE FACILITY OVER THE COURSE OF A COUPLE OF DAYS, THE WEIGHT OF THE EXCESSIVE WATER ON THE EXTERNAL FLOATING ROOF EXCEEDED THE DRAIN CAPACITY OF THE STORAGE TANK ROOF DRAIN SYSTEM CAUSING THE ROOF TO SINK BELOW THE CRUDE OIL LEVEL IN THE TANK AT THE TIME. A POST-ACCIDENT INVESTIGATION PERFORMED BY HMT, INC. REVEALED NO EVIDENCE OF THE ROOF DRAIN BEING PLUGGED UP, OR PARTIALLY PLUGGED UP, AND THE DRAIN VALVE AT THE BOTTOM OF THE TANK WAS OPERATED IN THE NORMAL, OPEN POSITION TO ALLOW RAINFALL TO DRAIN OFF THE ROOF. WHEN THE CRUDE OIL GOT ON TOP OF THE EXTERNAL FLOATING ROOF, THE REPORTED VOLUME DRAINED OUT OF THE TANK FROM THE ROOF DRAIN VALVE NEAR THE BOTTOM OF THE TANK. ALL RELEASED CRUDE OIL WAS COMPLETELY CONTAINED WITHIN THE TANK'S DIKEWALL AND NONE LEFT THE FACILITY PROPERTY. A SECOND NRC NOTIFICATION WAS MADE REGARDING THIS ACCIDENT. THE SECOND NOTIFICATION WAS MADE AT 08:37AM ON 10/27/15. IT WAS ASSIGNED REPORT # 1131792.

About This Pipeline Incident

Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.

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