TALLGRASS INTERSTATE GAS TRANSMISSION, LLC
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | TALLGRASS INTERSTATE GAS TRANSMISSION, LLC |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 40.81517, -99.16053 |
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
OPERATIONS PERSONNEL WERE NOTIFIED OF THE VENTING OF GAS THROUGH A RELIEF VALVE AT THE RIVERDALE MAINLINE BORDER STATION ON 2/16/21. THE RELIEF VALVE WAS ISOLATED, AND UPON INSPECTION IT WAS DETERMINED THAT THE RUBBER AXIAL RELIEF VALVE SLEEVE FAILED TO MAINTAIN ITS SETPOINT DUE TO EXTREME COLD AMBIENT TEMPERATURES, WHICH REACHED -26 DEGREES F, FALLING BELOW THE MANUFACTURER'S OPERATING MINIMUM RANGE. THE RELIEF VALVE SLEEVE WAS REPLACED ""IN-KIND"" AND THE LINE WAS RETURNED TO SERVICE ON 2/16/21
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.