COLUMBIA GAS TRANSMISSION, LLC
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | COLUMBIA GAS TRANSMISSION, LLC |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 38.40181, -81.41719 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
ON 01/20/2019, AN 8"" RELIEF VALVE AT COCO COMPRESSOR STATION UNINTENTIONALLY ACTIVATED AND RELEASED A REPORTABLE QUANTITY (5,129 MCF) OF NATURAL GAS TO THE ATMOSPHERE. THE RELIEF VALVE IS LOCATED ON THE 36"" SUCTION HEADER OF THE STATION AND ACTS AS A TERTIARY OVERPRESSURE-PRESSURE PROTECTION (OPP) DEVICE. THE FIRST AND SECOND OPP DEVICES DID NOT ACTIVATE. THE CAUSE OF THE RELEASE WAS INVESTIGATED. ICE BUILD-UP IN THE PRESSURE SENSING LINES (PILOT)CREATED A DIFFERENTIAL IN PRESSURE CAUSING THE RELIEF VALVE TO OPEN. NO FIRE, EXPLOSION, DEATHS, INJURIES OR EVACUATIONS OCCURRED AS A RESULT OF THE RELEASE.
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.