COLORADO INTERSTATE GAS CO
gas_transmission Incident — — June 28, 2023
Incident Information
| Incident Date | June 28, 2023 |
| Operator | COLORADO INTERSTATE GAS CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 41.43691, -105.93711 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $500 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON 6/28/2023, COLORADO INTERSTATE GAS (CIG) EXPERIENCED AN UNPLANNED ESD AT THE LARAMIE COMPRESSOR STATION. THE INSTRUMENT AIR SYSTEM MALFUNCTIONED WHICH WAS A CAUSE FOR THE ESD. THE STATION SUCTION VALVE HAD MOVED TO A PARTIALLY OPEN POSITION WHICH CAUSED THE REPORTABLE RELEASE OF 41,044 MCF. THE AUDIBLE NOISE WAS CALLED INTO THE SHERIFF'S DEPARTMENT. CIG WAS THEN CONTACTED BY THE SHERIFF'S DEPARTMENT. THE ERL CALL WAS INITIATED AND DEEMED REPORTABLE. THE INTERNAL INVESTIGATION BEGAN IMMEDIATELY AND HAS BEEN COMPLETE. CORRECTIVE ACTIONS INCLUDE: SET UP CALL OUT ALARM WITH GAS CONTROL TO INCLUDE LOW INSTRUMENT AIR PRESSURE. EVALUATE IF LOW INSTRUMENT AIR NEEDS TO BE AN ESD. EVALUATE IF PLACING LARAMIE CIG COMP STATION IN SHORT TERM PRESERVATION MODE IS APPROPRIATE. INSTALL MECHANICAL LOCKING DEVICE TO HOLD BOTH RISING STEM GATE VALVES CLOSED."
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.