"TALLGRASS INTERSTATE GAS TRANSMISSION, LLC"
gas_transmission Incident — — February 16, 2021
Incident Information
| Incident Date | February 16, 2021 |
| Operator | "TALLGRASS INTERSTATE GAS TRANSMISSION, LLC" |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 40.81517, -99.16053 |
Cause
| Cause | NATURAL FORCE DAMAGE |
| Subcause | TEMPERATURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $470 |
| Emergency Response | $200 |
| Other Costs | $0 |
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.