COLORADO INTERSTATE GAS CO
gas_transmission Incident — — July 18, 2015
Incident Information
| Incident Date | July 18, 2015 |
| Operator | COLORADO INTERSTATE GAS CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 39.60850, -104.35013 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | OTHER EQUIPMENT FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $2,500 |
| Emergency Response | $1,500 |
| Other Costs | $0 |
Location Map
Incident Narrative
A SOLENOID VALVE ON THE TOWER SWITCH VALVE FAILED, RENDERING THE AIR DRYER INOPERABLE. THIS ALLOWED WATER TO ENTER THE ESD SYSTEM CAUSING THE ESD VENT VALVE TO ACTIVATE (THE WATER INTERFERED WITH THE ESD'S PNEUMATIC OPERATION). GAS WAS RELEASED THROUGH A 6"" VENT STACK INTO THE ATMOSPHERE. A VOLUME GREATER THAN THE REPORTING THRESHOLD OF 3,000 MCF WAS RELEASED RESULTING IN THE INCIDENT REPORT TO THE NRC. THE INSTRUMENT AIR DRYER HAS BEEN REPAIRED AND THE FACILITY WAS SUCCESSFULLY PLACED BACK INTO 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.