ENBRIDGE ENERGY, LIMITED PARTNERSHIP

hazardous_liquid Incident —

Incident Information

Report Date
OperatorENBRIDGE ENERGY, LIMITED PARTNERSHIP
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates48.21111, -96.43556

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

ON APRIL 23 AT APPROXIMATELY 3:00 PM, WHILE CONDUCTING THE DAILY INSPECTION AT THE VIKING STATION, THE TECHNICIAN NOTICED OIL ON THE GROUND IN AND AROUND THE WHISTLE IN THE AREA OF THE LINE 2 DISCHARGE PRESSURE TRANSMITTER. LINE 2 WAS IMMEDIATELY SHUT DOWN TO DETERMINE THE SOURCE OF THE OIL. THE THREADED JOINT BETWEEN THE 2""PIPING AND THE 2"" VALVE OFF THE MAINLINE FAILED. FURTHER INVESTIGATION DISCOVERED THE LEAK WAS CAUSED BY THE WHISTLE FROST HEAVING UP AND PUSHING ON THE 2"" PIPE, WHICH IN TURN CAUSED THE PIPE THREADS TO FAIL. A TEMPORARY HOSE WAS INSTALLED THAT SAME DAY AND LINE 2 WAS RETURNED TO SERVICE LATER THAT EVENING. THE PERMANENT PIPING IS BEING CONFIGURED AND WILL BE PUT INTO SERVICE IN THE NEXT FEW WEEKS. APPROXIMATELY 220 YARDS OF CONTAMINATED SOIL WAS REMOVED FROM THE SITE AND DISPOSED OF AT AN APPROVED LOCATION.

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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