MIDWESTERN GAS TRANSMISSION CO
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | MIDWESTERN GAS TRANSMISSION CO |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 41.06523, -88.08649 |
Cause
| Cause | INCORRECT OPERATION |
| 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 NOVEMBER 13, 2023, ONEOK TECHNICIANS WERE TROUBLESHOOTING A COMPRESSOR AT THE HERSCHER COMPRESSOR STATION. DURING TROUBLESHOOTING AN INCORRECT FUSE WAS REMOVED, CAUSING THE STATION TO EMERGENCY SHUTDOWN (ESD). DURING THE ESD SEQUENCE, THE OPERATORS NOTICED THE SHUTDOWN WAS TAKING LONGER THAN TYPICAL, THEREFORE THEY PROCEEDED TO MANUALLY ISOLATE THE STATION BLOW DOWN VALVE TO STOP THE BLOW DOWN. UPON FURTHER STATION WALKDOWN INSPECTIONS, THE OPERATORS DISCOVERED THAT THE STATION LOADING VALVE WAS LEFT IN THE INCORRECT OPEN POSITION. THE STATION WAS RETURNED TO SERVICE AFTER THE OPERATORS CLOSED THE VALVE AND LEFT IT IN THE CORRECT POSITION.
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.