HARVEST MIDSTREAM COMPANY
hazardous_liquid Incident — — December 28, 2019
Incident Information
| Incident Date | December 28, 2019 |
| Operator | HARVEST MIDSTREAM COMPANY |
| Commodity | CRUDE OIL |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 29.36596, -89.53902 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | OTHER EQUIPMENT FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $3,000 |
| Emergency Response | $600 |
| Other Costs | $0 |
Location Map
Incident Narrative
DURING CLEANING PIG OPERATIONS ON DECEMBER 28, THE LINE SHUTDOWN DUE TO HIGH PRESSURE. THE HIGH PRESSURE WAS CAUSED BY EXCESSIVE S&W IN FRONT OF THE CLEANING PIG. THE SYSTEM SHUTDOWN AT 03:47 WHEN THE HIGH PRESSURE WAS RECOGNIZED. THE RELIEF VALVE ON THE PIG TRAP RELIEVED THE PRESSURE IN PIG TRAP BARREL. DEBRIS FROM THE CLEANING PIG RUN PREVENTED THE RELIEF VALVE FROM RESEATING. THE RELIEF VALVE DISCHARGES INTO THE SUMP. WHEN THE SUMP FILLS A LEVEL SWITCH IS SUPPOSED TO START THE PUMP TO EMPTY THE SUMP. THE LEVEL SWITCH FAILED TO START THE PUMP CAUSING THE SUMP TO OVERFLOW. PREVENTION OF REOCCURRENCE THE RELIEF VALVE WAS CLEANED AND TESTED AND CONFIRMED FOR CONTINUED USE. THE LEVEL SWITCH WAS INSPECTED AND THE FLOAT THAT ACTIVATES THE SWITCH WAS FOUND TO BE DEFECTIVE. THE FLOAT ASSEMBLY WAS REPLACED AND THE SYSTEM PLACED BACK INTO SERVICE.
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.