"MARKWEST LIBERTY NGL PIPELINE, L.L.C."
hazardous_liquid Incident — — June 30, 2021
Incident Information
| Incident Date | June 30, 2021 |
| Operator | "MARKWEST LIBERTY NGL PIPELINE, L.L.C." |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 39.95934, -80.52045 |
Cause
| Cause | NATURAL FORCE DAMAGE |
| Subcause | LIGHTNING |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $0 |
| Other Costs | $159,000 |
Location Map
Incident Narrative
"AT 12:53 LIGHTNING STRUCK, DAMAGING AN RTU PANEL THAT CONTROLLED VALVES. BOTH PRESSURE TRANSMITTERS ON EITHER SIDE OF THE VALVE WERE FRIED, CAUSING A LOW LOW ALARM, CAUSING THE VALVE TO CLOSE. ONCE CLOSED PRESSURE WAS BUILT UP AND THE GASKET BEGAN TO LEAK. THE FLANGE WAS RETORQUED AND A FLANGE CLAMP WAS INSTALLED UNTIL AN OUTAGE COULD BE TAKEN. THE LINE WAS RESTARTED AND HAS NOT LEAKED SINCE."
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.