COLORADO INTERSTATE GAS CO
gas_transmission Incident — — May 1, 2017
Incident Information
| Incident Date | May 1, 2017 |
| Operator | COLORADO INTERSTATE GAS CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 37.75070, -102.74530 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $400 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
ON MONDAY, MAY 1, 2017, COLORADO INTERSTATE GAS (CIG) PERSONNEL ARRIVED AT THE SPRINGFIELD (CO) COMPRESSOR STATION AND FOUND NATURAL GAS VENTING TO ATMOSPHERE FROM THE FIRST CUT FUEL GAS RELIEF VALVE. THE FIRST CUT FUEL GAS PRESSURE REGULATOR HAD FAILED DUE TO A FAILURE OF ITS INTERNAL SOFT GOODS (RUBBER BOOT). THE VENTING GAS WAS STOPPED BY CLOSING ISOLATION VALVES AND THE FAILED REGULATOR WAS REPAIRED. IT WAS RETURNED TO SERVICE MONDAY, MAY 1, 2017, AT 3:00 PM MDT. SCADA INFORMATION REVEALED THAT THE REGULATOR HAD FAILED AT THIS UNMANNED STATION ON APRIL 29, 2017, AT APPROXIMATELY 7:00 PM MDT. HOWEVER, THIS FUEL GAS SCADA DATA IS NOT PART OF THE INFORMATION DELIVERED TO CIG'S GAS CONTROL. IT WAS DETERMINED THAT A VOLUME OF 21,047 MCF OF NATURAL GAS HAD BEEN RELEASED, THUS MEETING PHMSA INCIDENT REPORTING CRITERIA.
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.