EQT MIDSTREAM
gas_transmission Incident — — November 19, 2014
Incident Information
| Incident Date | November 19, 2014 |
| Operator | EQT MIDSTREAM |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 39.31709, -80.15808 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $200 |
| Other Costs | $0 |
Location Map
Incident Narrative
AT APPROXIMATELY 1:30 AM NOVEMBER 19, 2014 THE EQT CALL CENTER RECEIVED A CALL FROM A MEMBER OF THE PUBLIC ABOUT NOISE AT COMET COMPRESSOR STATION. THE CALL CENTER CONTACTED OPERATIONS PERSONNEL TO RESPOND AND OPERATIONS PERSONNEL ARRIVED AT APPROXIMATELY 2:10 AM TO FIND THE ESD HAD ACTIVATED, AN ESD VALVE HAD NOT CLOSED AND GAS WAS VENTING AT THE STATION SITE. GAS CONTROL ALSO CONTACTED OPERATIONS AND WERE NOTIFIED PERSONNEL WERE IN ROUTE. THE APPLICABLE VALVES WERE SHUT WHICH STOPPED THE VENTING. ONCE CALCULATIONS WERE COMPLETED IT WAS DETERMINED THE GAS LOSS WAS GREATER THAN THE 3 MMCF FOR REPORTING. THE INITIAL ESD WAS DETERMINED TO BE CAUSED BY A BAD GAS DETECTOR SENSOR WHICH WAS REPLACED. IT APPEARS THE VALVE DID NOT CLOSE DUE TO MOISTURE IN THE SUPPLY GAS LINE CAUSING FREEZE OFF.
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.