TARGA DOWNSTREAM LLC
hazardous_liquid Incident — — August 21, 2020
Incident Information
| Incident Date | August 21, 2020 |
| Operator | TARGA DOWNSTREAM LLC |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 33.74036, -97.58595 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | NON-THREADED CONNECTION FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $48,472 |
| Emergency Response | $4,000 |
| Other Costs | $143,000 |
Location Map
Incident Narrative
WHILE COMPLETING THE 6 MONTH VALVE INSPECTIONS ON THE MLV-17 SITE A TARGA EMPLOYEE NOTICED A TINY SPOT OF ICE ON THE SIDE OF A 4"" BALON BALL VALVE THAT IS/CAN BE USED TO BLOWDOWN THE PIPELINE. THIS VALVE IS A TWO PIECE BODY TYPE THAT BOLTS TOGETHER WITH AN O-RING FORMING A SEAL WHERE TO TWO PARTS COME TOGETHER. IT IS THIS O-RING THAT WAS SEEPING. THE LEAK WAS BARELY DETECTABLE. TARGA EMPLOYEES MONITORED THE CONDITION OF THE LEAK CONTINUALLY WHILE MAKING PLANS TO PERFORM THE REPAIR. PRODUCT WAS MOVED DOWNSTREAM OUT OF THE LINE SEGMENT USING A PIG PUSHED BY NITROGEN. ONCE PRODUCT WAS REMOVED AND VALVES WERE CLOSED THE NITROGEN WAS BLOWN OUT OF THE PIPELINE AND THE VALVE WAS REPLACED AND PIPELINE WAS PUT BACK IN 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.