COLUMBIA GULF TRANSMISSION CO
gas_transmission Incident — — December 12, 2013
Incident Information
| Incident Date | December 12, 2013 |
| Operator | COLUMBIA GULF TRANSMISSION CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 34.96201, -88.42000 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $250 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
ON DECEMBER 12, 2013, A COLUMBIA GULF TRANSMISSION, LLC (COLUMBIA) COMPRESSOR STATION (CS) WAS SUBJECT TO AN UNINTENDED EMERGENCY SHUTDOWN (ESD). THIS ESD EVENT TOOK PLACE AT COLUMBIAS CORINTH CS WHICH IS LOCATED IN ALCORN COUNTY, NEAR THE CITY OF CORINTH, MISSISSIPPI. AN OUTPUT BLOCK CONTROLLER FOR THE ISOLATION VALVE FAILED ON THE ESD SYSTEM WHICH LED TO THE CONTINUED FLOW OF NATURAL GAS TO THE ISOLATION BLOW-OFF VALVE THAT EXCEEDED 3,000 MCF (4,320 MCF). AFTER A THOROUGH INVESTIGATION, THIS OUTPUT BLOCK CONTROLLER WAS FOUND FAULTY AND WAS REPLACED. FULL FUNCTIONAL CHECK AND TEST WERE PERFORMED TO THE REPLACED COMPONENTS BEFORE RETURNING THE ESD SYSTEM AND THE CS BACK TO NORMAL SERVICE.
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.