TESORO LOGISTICS NORTHWEST PIPELINE LLC
hazardous_liquid Incident — — April 3, 2018
Incident Information
| Incident Date | April 3, 2018 |
| Operator | TESORO LOGISTICS NORTHWEST PIPELINE LLC |
| Commodity | REFINED AND/OR PETROLEUM PRODUCT (NON-HVL) WHICH IS A LIQUID |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 42.63593, -114.77275 |
Cause
| Cause | OTHER OUTSIDE FORCE DAMAGE |
| Subcause | PREVIOUS MECHANICAL DAMAGE NOT RELATED TO EXCAVATION |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $695,000 |
| Emergency Response | $2,134,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON APRIL 3RD, 2018 APPROXIMATELY 170 BARRELS OF DIESEL FUEL WAS RELEASED FROM THE NORTHWEST PRODUCTS #1 LINE NEAR MILEPOST 226. THERE WERE NOT INJURIES OR FATALITIES. THE REPAIR OF THE PIPELINE HAS BEEN COMPLETE, AND CLEAN UP IS ONGOING. THE CAUSE OF THE LEAK IS STILL UNDER INVESTIGATION. UPDATE 6/1/18: THE AFFECTED PIPE WAS REMOVED AND SENT TO A LABORATORY FOR METALLURGICAL ANALYSIS. THE REPORT FROM METALLURGICAL LABORATORY DETERMINED THAT THE LEAK RESULTED FROM SEVERAL SMALL RE-ROUNDING CRACKS THAT GREW BY FATIGUE UNTIL THEY COMBINED INTO A LARGER THROUGH-WALL LEAK. THE FEATURE WAS LOCATED IN A DENTED PORTION OF THE PIPE WALL."
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.