ENBRIDGE ENERGY, LIMITED PARTNERSHIP

hazardous_liquid Incident —

Incident Information

Report Date
OperatorENBRIDGE ENERGY, LIMITED PARTNERSHIP
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates46.68591, -92.06216

Cause

CauseEQUIPMENT FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

ON MARCH 23, 2018 AT 1:45 PM LOCAL TIME, APPROXIMATELY TWO BARRELS OF CRUDE OIL WAS DISCOVERED ON THE WEST SIDE OF THE TANK 21 PAD AREA BY ENBRIDGE PERSONNEL AT THE SUPERIOR TERMINAL. THE EDMONTON CONTROL CENTER WAS CONTACTED AND THE TANK LINE WAS SHUT DOWN. SUPERIOR PIPELINE MAINTENANCE PERSONNEL WERE DISPATCHED TO BEGIN CLEAN UP AND INVESTIGATE THE SOURCE OF THE RELEASE. AFTER FURTHER EXCAVATION, THE SOURCE OF THE RELEASE WAS IDENTIFIED AS A BURIED FLANGE ON THE TANK LINE PIPING. THE BOLTS ON THE FLANGE WERE RE-TORQUED, AND THE LINE WAS RESTARTED LATER THAT EVENING. THE AREA WAS MONITORED TO CONFIRM THE LEAK WAS REPAIRED. APPROXIMATELY 13 CUBIC YARDS OF CONTAMINATED SOIL WAS REMOVED AND WILL BE TREATED AT THE SOIL MANAGEMENT SITE AT THE SUPERIOR TERMINAL.

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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