DAKOTA GASIFICATION COMPANY
gas_transmission Incident — — December 10, 2025
Incident Information
| Incident Date | December 10, 2025 |
| Operator | DAKOTA GASIFICATION COMPANY |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 47.37546, -101.83826 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $500 |
| Other Costs | $0 |
Location Map
Incident Narrative
"AT 0450 ON 12/10/2025 A REMOTE-CONTROLLED BLOCK VALVE ON A VENT STACK AT A METERING STATION OPENED DUE TO AN APPARENT FAILURE OF THE POWER GAS SUPPLYING A PNEUMATIC ACTUATOR. IT IS BELIEVED THAT MOISTURE IN THE POWER GAS SUPPLY SYSTEM FROZE UP THE TUBING OR REGULATORS AFTER THE HEAT TRACING AROUND THE ACTUATOR FAILED. THE ACTUATOR IS DESIGNED TO OPEN THE VALVE DURING FAILURE AS PART OF THE EMERGENCY SHUTDOWN SYSTEM AT THE STATION. AT 0544 THE CONTROL ROOM OPERATOR CLOSED THE REMOTE-CONTROLLED BLOCK VALVE UPSTREAM OF THE VENT STACK TO STOP THE RELEASE. AT APPROXIMATELY 0600 PIPELINE OPERATIONS PERSONNEL ARRIVED AT THE STATION AND CLOSED A MANUAL BLOCK VALVE ON THE VENT STACK. TO DETERMINE THE EXTENT OF THE RELEASE, AN INITIAL REVIEW OF THE PROCESS CONDITIONS WAS COMPLETED AT 1138 WHICH INDICATED THE RELEASE WAS LIKELY GREATER THAN 3 MMCF. SUBSEQUENT HYDRAULIC CALCULATIONS DETERMINED 6.38 MMCF OF NATURAL GAS WAS RELEASED. THE RELEASED GAS DID NOT IGNITE AND THERE WERE NO INJURIES OR EVACUATIONS."
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.