ENTERPRISE PRODUCTS OPERATING LLC
gas_transmission Incident — — September 15, 2021
Incident Information
| Incident Date | September 15, 2021 |
| Operator | ENTERPRISE PRODUCTS OPERATING LLC |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 31.54605, -102.49340 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $10,000 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON 9-15-2021 AT 19:21, THE CONTROLLER NOTICED PRESSURE DECREASING AT THE IDLED CRANE STATION AND DISPATCHED A TECHNICIAN. UPON ARRIVAL, THE TECHNICIAN FOUND THE THE STATION HAD ESD AND PROCEEDED TO ISOLATE THE STATION TO STOP THE DISCHARGE OF GAS THROUGH THE ESD VENT VALVE. IT WAS DETERMINED THAT THE STATION HAD ESD, AS DESIGNED, DUE TO A LOSS OF POWER; HOWEVER, AN ISOLATION VALVE DID NOT PROPERLY CLOSE, WHICH ALLOWED GAS INTO THE STATION, AND THE ESD VENT VALVE FAILED TO CLOSE, WHICH ALLOWED GAS TO DISCHARGE FROM THE STATION. THE MALFUNCTIONED VALVES WAS REPAIRED AND REPROGRAMMED. TO PREVENT RECURRENCE, THE CRANE ESD SYSTEM WAS TESTED TO ENSURE THAT IT WORKED AS DESIGNED. THE NRC AND THE TXRRC (2491) WERE NOTIFIED ON 9-16-2021 FOLLOWING THE DETERMINATION THAT THE CALCULATED GAS VOLUME DISCHARGED EXCEEDED 3 MMSCF."
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.