COLUMBIA GAS TRANSMISSION, LLC
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | COLUMBIA GAS TRANSMISSION, LLC |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 38.47729, -81.71111 |
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 JANUARY 3, 2014 AT 12:45 EST, AN 8-IN BLOW-OFF (BO) VALVE ON PIPELINE SM-81 INADVERTENTLY ACTIVATED. LINE SM-81 IS LOCATED AND IS FED FROM LANHAM COMPRESSOR STATION YARD THROUGH A REGULATION RUN THAT CUTS THE PRESSURE TO APPROXIMATELY 400 PSIG. THIS BO VALVE REMAINED OPEN FOR APPROXIMATELY 70 MINUTES AND CONTINUALLY VENTED GAS AS THE LINE AND THE OPEN BO WERE FED BY THE REGULATORS. IT WAS IDENTIFIED THAT A VENT CAP ON A TRIGGER VALVE WAS HELD CLOSED RENDERING IT INOPERABLE DUE TO PAINT WHICH RESTRICTED ITS NORMAL FUNCTIONALITY. AN INTERNAL COMMUNICATIONS MEMORANDUM WAS ISSUED COMPANY-WIDE TO INSPECT SIMILAR INSTALLATIONS (AFTER RECONDITIONING) AND TO AVOID A SIMILAR RE-OCCURRENCE DUE TO THE IDENTIFIED CAUSAL FACTOR. INITIAL INCIDENT REPOT WAS SUBMITTED ON FEBRUARY 02, 2014
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.