ENBRIDGE ENERGY, LIMITED PARTNERSHIP
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | ENBRIDGE ENERGY, LIMITED PARTNERSHIP |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 41.55349, -87.88525 |
Cause
| Cause | NATURAL FORCE DAMAGE |
| 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 JULY 13, 2017 AT 10:51 AM, ENBRIDGE LOCAL STATION TECHNICIAN NOTICED OIL SHEEN ON STANDING WATER IN THE GRAVELED AREA NEAR LINE 14 TRAP AND PCV AREA AT THE MOKENA STATION. STATION TECHNICIAN CALLED THE EDMONTON CONTROL CENTER AND LINE 14 WAS IMMEDIATELY SHUT DOWN AND THE STATION WAS ISOLATED. CONTRACT RESOURCES AND ENBRIDGE PIPELINE MAINTENANCE CREWS RESPONDED AND DISCOVERED THE SOURCE TO BE A SMALL DIAMETER THREADED CONNECTION - VALVE PACKING AND GREASE FITTING ON THE BURIED PORTION OF VALVE 461.17-14/6-XV. THE MAJORITY OF THE 67 GALLONS RELEASED REMAINED ON SITE; HOWEVER, APPROXIMATELY 1.47 GALLONS MADE IT THROUGH THE OUTFLOW OF CONTAINMENT POND AND OFF SITE. THE SMALL DIAMETER THREADED FITTING AND PIPING THAT WAS LEAKING WAS REMOVED AND A THREADED PLUG WAS INSTALLED. THE REPAIRS WILL BE COMPLETED THROUGH AN OUTAGE REQUEST. THE CAUSE OF THE RELEASE HAS BEEN DETERMINED TO BE DUE TO FROST HEAVE. APPROXIMATELY 195 TONS OF CONTAMINATED SOIL AND VEGETATION WAS DISPOSED OF AT AN APPROVED SITE. THE CRUDE OIL THAT LEFT THE SITE WAS CLEANED UP THROUGH REMOVAL OF VEGETATION AND ABSORBING THE RESIDUAL WITH ABSORBENT PADS.
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.