ENBRIDGE ENERGY, LIMITED PARTNERSHIP
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | ENBRIDGE ENERGY, LIMITED PARTNERSHIP |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 48.21266, -96.43513 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
ON OCTOBER 18, 2021 AT APPROXIMATELY 10:38 AM CDT, A TECHNICIAN PERFORMING MAINTENANCE ACTIVITIES AT THE VIKING STATION DISCOVERED CRUDE OIL ON THE GROUND AT THE BASE OF LINE 4 DISCHARGE VALVE (4SDV1). THE EDMONTON CONTROL CENTER WAS IMMEDIATELY NOTIFIED, AND THE LINE WAS SHUT DOWN. OPERATIONS BEGAN INVESTIGATING THE CAUSE OF THE RELEASE BUT THE SOURCE COULD NOT BE IDENTIFIED AT THE TIME UNTIL THE ENTIRE AREA AROUND THE VALVE COULD BE EXCAVATED. ADDITIONAL EQUIPMENT AND RESOURCES WERE CALLED IN TO ASSIST IN EXCAVATION TO DETERMINE THE SOURCE OF THE RELEASE AND CLEAN-UP OF THE AREA. THE NRC WAS NOTIFIED ON OCTOBER 18, 2021 AT 11:44 AM CDT (NRC# 1319752). EXCAVATION AND CLEAN UP PROCEEDED UNTIL THE SOURCE OF THE RELEASE WAS IDENTIFIED AS A BAD GASKET AT A FLANGE FITTING UPSTREAM OF THE STATION DISCHARGE VALVE. APPROXIMATELY 4 BARRELS OF CRUDE OIL WAS RELEASED ONTO THE SITE. A 48-HOUR UPDATE TO THE NRC WAS MADE ON OCTOBER 20, 2021 AT 10:51 AM CDT (NRC# 1319933). THE CAUSE OF THE RELEASE WAS DETERMINED TO BE DUE TO NORMAL WEAR AND TEAR OF THE GASKET FROM YEARS OF SERVICE. THE GASKET WAS REPLACED AND APPROXIMATELY 950 YARDS OF CONTAMINATED SOIL WAS REMOVED FROM THE RELEASE SITE AND DISPOSED OF AT AN APPROVED LANDFILL.
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.