MARATHON PIPE LINE LLC
hazardous_liquid Incident — — April 12, 2022
Incident Information
| Incident Date | April 12, 2022 |
| Operator | MARATHON PIPE LINE LLC |
| Commodity | REFINED AND/OR PETROLEUM PRODUCT (NON-HVL) WHICH IS A LIQUID |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 43.60652, -116.25285 |
Cause
| Cause | NATURAL FORCE DAMAGE |
| Subcause | TEMPERATURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $170,000 |
| Emergency Response | $34,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON APRIL 12, 2022 AT 10:54PM MT, AN OPERATOR AT THE BOISE TERMINAL WAS DRAINING WATER FROM THE ROOF OF TANK 204 WHEN UNLEADED GASOLINE WAS IDENTIFIED COMING FROM THE ROOF TANK DRAIN VALVE. THE ROOF DRAIN VALVE WAS IMMEDIATELY CLOSED TO STOP FLOW. THE CAUSE OF THE ROOF DRAIN FAILURE WAS DETERMINED TO BE FROM WATER IN THE DRAIN PIPE FREEZING, AND THEN EXPANDING AND BREAKING A FLEXIBLE JOINT. ON APRIL 13, 2022 AT 1:45AM MT, CONFIRMED DISCOVERY OCCURRED WHEN COMPANY SUBJECT MATTER EXPERTS DETERMINED THAT THE ESTIMATED PROPERTY DAMAGE COSTS EXCEEDED THE $50,000 THRESHOLD FOR REPORTING TO THE NRC. THE REPAIR PLAN INCLUDES REMOVING THE TANK FROM SERVICE AND REPLACING THE DRAIN WITH A FLEXIBLE HOSE THAT IS MORE SUITABLE FOR COLD WEATHER. CURRENTLY, THE DRAIN HAS BEEN ISOLATED, AND ANY WATER COLLECTION THAT OCCURS ON THE TANK IS BEING MANAGED BY ALTERNATIVE MEANS. UPDATE: JULY 18, 2022 - NO CHANGES FROM ORIGINAL REPORT. INVESTIGATION IS COMPLETED."
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.