"COLUMBIA GAS TRANSMISSION, LLC"
gas_transmission Incident — — January 20, 2019
Incident Information
| Incident Date | January 20, 2019 |
| Operator | "COLUMBIA GAS TRANSMISSION, LLC" |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 38.40181, -81.41719 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $0 |
| Other Costs | $0 |
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.