DAKOTA GASIFICATION COMPANY
hazardous_liquid Incident — — September 25, 2014
Incident Information
| Incident Date | September 25, 2014 |
| Operator | DAKOTA GASIFICATION COMPANY |
| Commodity | CO2 (CARBON DIOXIDE) |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 48.39750, -102.90100 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | NON-THREADED CONNECTION FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $500 |
| Emergency Response | $1,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
AFTER GENERAL WORK, THE CONTROL ROOM FOR THE CO2 PIPELINE INITIATED EFFORTS TO START PUMP GA7411. THE BOARD OPERATOR CALLED FOR 40% OPEN ON FLOW VALVE FV74056. DURING STARTUP, PRESSURES BUILT TO 3001 PSI WITHOUT THE VALVE OPENING. SYSTEM ALARMS, SHUTS DOWN IS INITIATED BY THE BOARD OPERATOR. THE SEQUENCE IS TRIED AGAIN, WITH THE SAME RESULTS. E&I ARE DISPATCHED TO FIND THE CAUSE, WHICH IS DETERMINED TO BE A FAULTY SERVO DRIVER. DURING INVESTIGATION OF GA7411, PSV 74050 WAS FOUND WITH A MICRO (PIN HOLE) LEAK EMITTING FROM THE SIDE BODY. THE PSV WAS ISOLATED AND CHANGED WITH A LIKE PSV BY MAINTENANCE. SUBSEQUENT EXAMINATION FOUND THE VALVE BODY O-RING ON THE INSPECTION PORT WSAS BAD. THE O RING WAS CHANGED, PSV TESTED AND PLACED IN RESERVE STOCK. ESTIMATE GAS LOSSES: - HYDROGEN SULFIDE 10 LBS; CARBON DIOXIDE 800 LBS = 72 GALLONS
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.