MARATHON PIPE LINE LLC
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | MARATHON PIPE LINE LLC |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 41.80708, -83.60071 |
Cause
| Cause | EQUIPMENT 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
THE RELEASE OCCURRED AS A RESULT OF A GRAVITOMETER PUMP SEAL FAILURE. THE PUMP UPON WHICH THE SEAL FAILURE OCCURRED SUPPLIES CRUDE OIL FROM AN ACTIVE PIPELINE TO THE GRAVITOMETER FOR GRAVITY DETERMINATION. AN UNKNOWN PIECE OF METAL SCORED THE PUMP CAN FROM THE INSIDE OF THE CAN; THAT METAL WAS BEING TRANSPORTED BY THE CRUDE STREAM. WHILE THE MAJORITY OF THE RELEASE REMAINED ONSITE, IT WAS DISCOVERED THAT 0.5 BARRELS ENTERED A WET WEATHER DRAINAGE DITCH LOCATED TO THE SOUTHEAST CORNER OF THE STATION VIA AN UNDERGROUND PARKING LOT DRAINAGE PIPE. THE UNNAMED DRAINAGE DITCH DRAINS TO CONE CREEK . ESTIMATED PRESSURE ON THE GRAVITOMETER AT TIME OF RELEASE WAS BETWEEN 7 PSI AND 107 PSI. 107 PSI WAS SUPPLIED AS THE ANSWER ON THE 7000-1 FORM AS IT IS THE WORSE CASE SCENERIO FOR THE PRESSURE AT THE TIME OF THE INCIDENT. ACTUAL DIMENSIONS OF THE SCORE WERE 0.004 IN (0.1 MM) AXIAL BY 6.9 IN (175 MM) CIRCUMFERENTIAL. DUE TO LIMITATIONS ON THE REPORTING FORM, THIS WAS REPORTED AS 0.1 IN AXIAL BY 6.9 IN CIRCUMFERENTIAL.
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.