ENBRIDGE ENERGY, LIMITED PARTNERSHIP
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | ENBRIDGE ENERGY, LIMITED PARTNERSHIP |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 47.68922, -95.40838 |
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 SEPTEMBER 29, 2017 AT APPROXIMATELY 5:30 PM CDT, THE GAUGER AT THE CLEARBROOK TERMINAL NOTICED CRUDE OIL NEAR THE LINE 3 SENDING TRAP WHILE COMPLETING ROUTINE ROUNDS. THE TERMINAL SUPERVISOR WAS NOTIFIED AND ADDITIONAL PERSONNEL CONTACTED TO ASSIST. LINE 3 WAS SHUT DOWN AT 6:00 PM CDT TO ALLOW FOR EXCAVATING THE AREA, INVESTIGATING THE SOURCE AND CONTAINING THE PRODUCT. IT WAS DISCOVERED THAT THE TRAP DOOR O-RING WAS DAMAGED, CAUSING THE RELEASE. A NEW O-RING WAS INSTALLED, AND THE LINE RESTARTED AT 1:00 AM CDT ON SEPTEMBER 30, 2017. THE INCIDENT INVESTIGATION INDICATES THAT THE FIELD FABRICATED O-RING THAT HAD BEEN IN SERVICE FOR NUMEROUS PIG RUNS HAD PROBABLY FAILED DURING THE TRAP DOOR CLOSURE PROCESS. APPROXIMATELY 37 CUBIC YARDS OF CONTAMINATED SOIL HAD BEEN PROPERLY 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.