ENBRIDGE ENERGY, LIMITED PARTNERSHIP

hazardous_liquid Incident —

Incident Information

Report Date
OperatorENBRIDGE ENERGY, LIMITED PARTNERSHIP
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates41.63611, -88.04639

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 NOVEMBER 7 AT APPROXIMATELY 7:12 A.M., EDMONTON CONTROL CENTER RECEIVED A LEAK DETECTION ALARM FROM THE LOCKPORT-MUSTANG DENSITOMETER BUILDING AND CONTACTED THE ON-SITE GAUGER. HE IMMEDIATELY INVESTIGATED AND DISCOVERED THAT A RELEASE TOOK PLACE AROUND THE DENSITOMETER CABINET RELEASE. HE THEN CONTACTED THE STATION TECHNICIAN, WHO WAS ALSO ON-SITE. LINE 6A WAS IMMEDIATELY SHUTDOWN. IT WAS DISCOVERED THAT THERE WAS AN INTERNAL COUPLING FAILURE WITHIN THE DENSITOMETER MAGNETIC DRIVE PUMP RESULTING IN SUDDEN, FORCEFUL WEAR AND FAILURE OF THE CANISTER. A NEW MOTOR AND PUMP WAS INSTALLED AND THE LINE WAS RESTARTED LATER THAT MORNING. APPROXIMATELY 30 CUBIC YARDS OF CONTAMINATED SOIL WAS REMOVED FROM THE 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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