MARATHON PIPE LINE LLC
hazardous_liquid Incident — — May 22, 2019
Incident Information
| Incident Date | May 22, 2019 |
| Operator | MARATHON PIPE LINE LLC |
| Commodity | REFINED AND/OR PETROLEUM PRODUCT (NON-HVL) WHICH IS A LIQUID |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 41.63744, -87.50158 |
Cause
| Cause | INCORRECT OPERATION |
| Subcause | "VALVE LEFT OR PLACED IN WRONG POSITION, BUT NOT RESULTING IN A TANK, VESSEL, OR SUMP/SEPARATOR OVERFLOW OR FACILITY OVERPRESSURE" |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $0 |
| Emergency Response | $14,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON 5/22/19 AT 2200 HOURS, TERMINAL OPERATOR DISCOVERED A SMALL PRODUCT RELEASE FROM A TANK VALVE ON TRANSMIX TANK T-5. THE LEAK WAS STOPPED BY CLOSING A SMALL NEEDLE VALVE ON THE BODY RELIEF. INITIAL CLEAN-UP WAS PERFORMED BY THE TERMINAL PERSONNEL AND TOTALLY CONTAINED ON OPERATOR PROPERTY. TOTAL VOLUME RELEASED HAS BEEN DETERMINED TO BE 73.5 GALLONS. ROOT CAUSE ANALYSIS HAS DETERMINED THE CAUSE TO BE A SMALL NEEDLE VALVE ATTACHED TO THE VALVE BODY RELIEF WAS LEFT OPEN AND WHEN PRESSURE BUILT UP, THE PRODUCT RELEASED THROUGH THE OPEN PATH. 01/21/2025 - A SMALL NEEDLE VALVE ATTACHED TO THE VALVE BODY RELIEF WAS LEFT OPEN 01/21/2025 - UPDATED BY PHMSA PER OPERATOR APPROVAL."
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.