MARATHON PIPE LINE LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorMARATHON PIPE LINE LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates44.67953, -108.35957

Cause

CauseCORROSION FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

ON OCTOBER 12, 2017 CONTRACT CREWS WERE ON-SITE TO PERFORM EXCAVATION OF AN ANOMALY THAT WAS DISCOVERED DURING AN ILI TOOL RUN. WHILE BEGINNING EXCAVATION, THE CREW ENCOUNTERED CONTAMINATED SOIL AND IDENTIFIED A PINHOLE LEAK. A REPAIR CLAMP WAS IMMEDIATELY INSTALLED TO STOP THE RELEASE AND REPAIR THE ANOMALY. THE CONTAMINATED SOIL WAS CLEANED-UP AND DISPOSED OF. THE CAUSE OF THE EXTERNAL CORROSION IS DUE TO WAX COATING INADEQUACIES, THE CP ENVIRONMENT AND TOOL TECHNOLOGY CAPABILITIES.

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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