ENBRIDGE ENERGY, LIMITED PARTNERSHIP

hazardous_liquid Incident —

Incident Information

Report Date
OperatorENBRIDGE ENERGY, LIMITED PARTNERSHIP
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates46.68594, -92.06216

Cause

CauseMATERIAL FAILURE OF PIPE OR WELD
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

ON MARCH 16, 2019 AT 9:49 AM CDT, APPROXIMATELY 72 GALLONS OF CRUDE OIL WAS DISCOVERED IN THE TANK 21 PAD AREA BY FIELD PERSONNEL PERFORMING ROUTINE ROUNDS AT THE SUPERIOR TERMINAL. THE TANK LINE WAS OUT OF SERVICE AT THE TIME THE RELEASE WAS DISCOVERED. THE TANK LINE WAS EXCAVATED AND NDE WAS PERFORMED, AND A CRACK WAS DISCOVERED IN THE UPSTREAM WELD OF THE BELOW GRADE SLIP ON THE 48"" FLANGE. A PRESSURE CONTAINING SLEEVE WAS WELDED OVER THE CRACK AND THE LINE WAS PLACED BACK INTO SERVICE. APPROXIMATELY 130 CUBIC YARDS OF CONTAMINATED SOIL WAS DISPOSED OF AT AN APPROVED SITE.

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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