ANR PIPELINE CO
gas_transmission Incident, , December 25, 2025
Incident Information
| Incident Date | December 25, 2025 |
| Operator | ANR PIPELINE CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 43.59954, -88.13049 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
"NOTIFICATION FROM THE PUBLIC WAS RECEIVED OF A POSSIBLE RELEASE OF GAS AT 11:22 PM ON DECEMBER 25, 2025. FIRST RESPONDERS ARRIVED ONSITE AT 11:55 PM CST AND CONFIRMED GAS VENTING AT THE ANR-KEWASKUM, WISCONSIN COMPRESSOR STATION. UPON ARRIVAL AT THE SITE, THE TECHNICIAN CONFIRMED THE GAS RELEASE AND ESD OF THE COMPRESSOR STATION. IMMEDIATE ACTIONS WERE TAKEN TO ENSURE COMPRESSOR STATION SHUTDOWN, GAS WAS VENTED AND VALVES WERE CLOSED. LOCAL OFFICIALS EVACUATED RESIDENTS IN THE AREA. THE RELEASE WAS STOPPED WITHIN AN HOUR AND EVACUATION WAS LIFTED. THE CAUSE OF THE ESD BEING INCOMPLETE WAS DUE TO THE ESD ALARM SIGNAL IN THE ESD PANEL BEING AN UNLATCHED ALARM. THE TEAM FOUND AN ISSUE WITH THE 24V FUSE HOLDER WHICH CAUSED AN INTERMITTENT SIGNAL TO DROP OUT, WHICH IN TURN SENT AN ESD SIGNAL TO THE ESD PANEL. THE CAUSE OF THE ESD BEING INCOMPLETE WAS DUE TO THE ESD ALARM SIGNAL IN THE ESD PANEL BEING AN UNLATCHED ALARM. THE UNLATCHING ALARM WAS MOVED TO A LATCHING ALARM PRIOR TO THE STATION BEING PUT BACK IN-SERVICE, AS WELL AS A THOROUGH POINT-TO POINT ON THE ANNUNCIATING SIGNALS. KEWASKUM COMPRESSOR STATION WAS PLACED BACK INTO SERVICE ON DECEMBER 27, 2025, AT 2:00 PM CST."
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.