SOUTHERN NATURAL GAS CO
gas_transmission Incident — — October 26, 2022
Incident Information
| Incident Date | October 26, 2022 |
| Operator | SOUTHERN NATURAL GAS CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 32.49958, -87.71455 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $30,000 |
| Emergency Response | $109 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON OCTOBER 20TH, 2022 AT 8:28AM, A SOUTHERN NATURAL GAS (SNG) TECHNICIAN WAS MANUALLY OPERATING A VALVE CONTACTOR ON THE DISCHARGE SIDE OF UNIT 4 AT THE GALLION COMPRESSOR STATION. WHILE THE TECHNICIAN WAS OPERATING THE VALVE CONTACTOR, A NEIGHBORING CHECK VALVE CAUGHT FIRE. IMMEDIATELY THE TECHNICIAN INITIATED THE STATION EMERGENCY SHUTDOWN TO ISOLATE THE STATION. THE STATION WAS ISOLATED AT 8:55AM. THE TECHNICIAN ON SITE SUSTAINED BURNS REQUIRING TREATMENT IN A MEDICAL FACILITY BUT NOT REQUIRING OVERNIGHT IN-PATIENT HOSPITALIZATION. THE EVENT WAS DETERMINED TO BE NON-REPORTABLE, AND THE INTERNAL INCIDENT INVESTIGATION COMMENCED. ON OCTOBER 26TH, 2022, AFTER INVESTIGATING THE INCIDENT FURTHER, DATA INDICATED THAT ADDITIONAL GAS WAS VENTED DUE TO A FAULTY CHECK VALVE LOCATED IN THE VALVE PNEUMATIC SYSTEM WHICH DID NOT SEAL PROPERLY LEADING TO ADDITIONAL GAS VOLUME RELEASED. THEREFORE, THE INCIDENT WAS DEEMED REPORTABLE AND REPORTED TO THE NRC. IN ORDER TO PREVENT REOCCURRENCE SNG OPERATIONS WILL BE REPLACING ALL GALLION STATION PNEUMATIC SYSTEM CHECK VALVES."
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.