MARATHON PIPE LINE LLC
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | MARATHON PIPE LINE LLC |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 38.22968, -85.83110 |
Cause
| Cause | CORROSION FAILURE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
ON APRIL 1ST, 2024, DURING A ROUTINE WALK AROUND IT WAS DISCOVERED THAT VALVE IV-164-17 HAD DEVELOPED A SEEP ON THE BONNET OF THE VALVE. WHEN THE SEEP WAS IDENTIFIED, STEPS WERE TAKEN TO SEAL THE GASKET BY TORQUING DOWN THE BONNET FASTENERS UNTIL A FULL VALVE REPLACEMENT COULD BE MADE. WHEN THE TIGHTENING OCCURRED, THE DRIPPING WAS ELIMINATED, AND THE VALVE WAS PLACED UNDER A MONITORING PLAN. HOURS LATER DURING A CHECK, THE VALVE HAD FAILED, RELEASING APPROXIMATELY 15 GALLONS OF PRODUCT. THE SECTION OF PIPE WAS DRAINED DOWN AND THE VALVE WAS REPLACED. VALVE IV-164-17 IS ORIENTED HORIZONTALLY, FIELD INSPECTION INDICATED THAT WATER DROP-OUT IN THIS LOW FLOW VALVE RESULTED IN GENERAL CORROSION IN THE LOW POINT OF THE FLANGED CONNECTION OF THE VALVE BONNET SEAL. ALL THERMAL RELIEFS IN THE AREA WERE OPERATING AS DESIGNED.
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.