TEXAS GAS TRANSMISSION, LLC
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | TEXAS GAS TRANSMISSION, LLC |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 30.00963, -91.95902 |
Cause
| Cause | EQUIPMENT FAILURE |
| 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 5/30/2023 AT APPROXIMATELY 13:45, TEXAS GAS TRANSMISSION, LLC'S GAS CONTROL OBSERVED ABNORMAL FLOW ON ITS EUNICE-THIBODAUX 26-INCH NO. 1 (EUT 26-1) PIPELINE, WITH GAS FLOWING BACK TO THE CUSTOMER INTERCONNECT. GAS CONTROL HAD CHANGED THE SETPOINT ON THE CONTROL VALVE TO 0 FLOW AND SHORTLY THEREAFTER NOTICED THE DELIVERY METER STATION SHOWED FLOW ACROSS IT. GAS CONTROL CONTACTED LOCAL OPERATIONS PERSONNEL TO INVESTIGATE. WHEN OPERATIONS PERSONNEL ARRIVED AT THE INCIDENT SITE, THE RELIEF VALVE WAS VENTING AT LINE PRESSURE. IBERIA PARISH SHERIFF'S DEPARTMENT WAS ONSITE WHEN OPERATIONS PERSONNEL ARRIVED. THE TAP VALVE WAS SHUT IN AND THE RELEASE WAS ISOLATED. TEXAS GAS NOTIFIED STATE POLICE THAT THE VALVE WAS CLOSED AND THERE WERE NO HAZARDS. TEXAS GAS' INVESTIGATION REVEALED A FAULTY SEAT PLATE IN THE RELIEF VALVE. THE REPAIR KIT IS ORDERED AND IS EXPECTED BY MID-JULY AT WHICH TIME THE REPAIR WILL BE MADE. A SUPPLEMENTAL/FINAL REPORT WILL FOLLOW. 9/28/23 UPDATED TO INCLUDE DATE/TIME THE PIPELINE/FACILITY WAS PLACED BACK INTO SERVICE, COST OF DAMAGE AND REPAIRS, AND SUB-CAUSE CONTRIBUTING TO RELIEF VALVE FAILURE AND TO SUBMIT SUPPLEMENTAL/FINAL REPORT.
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.