ALGONQUIN GAS TRANSMISSION, L.L.C. (SPECTRA ENERGY PARTNERS, LP)
gas_transmission Incident — — May 5, 2018
Incident Information
| Incident Date | May 5, 2018 |
| Operator | ALGONQUIN GAS TRANSMISSION, L.L.C. (SPECTRA ENERGY PARTNERS, LP) |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 41.63206, -72.67272 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $1,000 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
A RELIEF VALVE AT THE CROMWELL COMPRESSOR STATION ON THE ALGONQUIN GAS TRANSMISSION PIPELINE SYSTEM RELEASED NATURAL GAS TO ATMOSPHERE AT 1:30 AM ON MAY 5, 2018 WHILE PIPELINE SYSTEM WAS OPERATING BELOW THE RELIEF VALVE'S SET POINT. THE AMOUNT OF NATURAL GAS RELEASED EXCEEDED 5 MILLION CUBIC FEET BEFORE THE RELIEF VALVE WAS ISOLATED. THE APPARENT CAUSE OF THE INADVERTENT OPERATION OF THE RELIEF VALVE WAS ITS CONTROL PILOT DRIFTING OFF SET POINT.
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.