ACADIAN GAS PIPELINE SYSTEM
gas_transmission Incident — — January 26, 2023
Incident Information
| Incident Date | January 26, 2023 |
| Operator | ACADIAN GAS PIPELINE SYSTEM |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 29.89627, -91.32275 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | OTHER EQUIPMENT FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $325,000 |
| Emergency Response | $2,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON JANUARY 26, 2023 AT 11:00 CENTRAL TIME (CT), ENTERPRISE OPERATIONS RECEIVED A CALL FROM A LOCAL FISHERMAN OF BUBBLES IN LITTLE TENSAS BAYOU NEAR OUR CHICO B PIPELINE IN THE ATCHAFALAYA BASIN. AT 11:45 CT, OPERATIONS PERSONNEL CONFIRMED THE BUBBLES IN THE WATER WERE NEAR THE CHICO B PIPELINE. ON JANUARY 27, 2023 AT 10:55 CT DIVERS CONFIRMED THE LEAK FROM THE CHICO B PIPELINE. THE UPSTREAM AND DOWNSTREAM MANUAL VALVES WERE CLOSED AT 15:00 CT TO ISOLATE THE LEAK AREA. ENTERPRISE DETERMINED THE EVENT TO BE REPORTABLE TO THE NRC DUE TO EXCEEDANCE OF REPAIR COST ON FEBRUARY 8, 2023 AT 17:41 CT. AN EXISTING PIPELINE CLAMP WAS DETERMINED TO BE LEAKING. THE CLAMP WAS REMOVED AND REPLACED WITH A NEW CLAMP. REVISIONS TO PART G6 EQUIPMENT FAILURE - SUB-CAUSE HAVE BEEN MADE CHANGING FROM NON-THREADED CONNECTION TO OTHER EQUIPMENT FAILURE. REVISIONS TO PART H NARRATIVE HAVE BEEN MADE CLARIFYING WATERWAY WITH LITTLE TENSAS BAYOU."
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.