CENEX PIPELINE LLC
hazardous_liquid Incident — — March 18, 2021
Incident Information
| Incident Date | March 18, 2021 |
| Operator | CENEX PIPELINE LLC |
| Commodity | REFINED AND/OR PETROLEUM PRODUCT (NON-HVL) WHICH IS A LIQUID |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 48.22844, -101.36720 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | NON-THREADED CONNECTION FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $500 |
| Emergency Response | $500 |
| Other Costs | $500 |
Location Map
Incident Narrative
AT NOON CST ON 3/18/21, CENEX PERSONNEL PERFORMING FACILITY ROUNDS, FOUND APPROXIMATELY 10 GALLONS OF DIESEL FUEL AROUND THE BASE OF FILTER #1. THE FILTER SOCKS IN FILTER #1 HAD BEEN REPLACED AND THE O-RING INSPECTED ON 3/16/21, AND THE FILTER WAS REFILLED AND PRESSURIZED AT THAT TIME AND WAS NOT SEEPING. IN RESPONSE TO THE RELEASE, STAFF IMPLEMENTED CORRECTIVE ACTION BY DIVERTING FLOW THROUGH FILTER #2 TO ALLOW THEM TO TIGHTEN THE FILTER HOUSING LID BOLTS ON FILTER #1 AND RETEST THE SEAL. FILTER #1 CONTINUED TO DRIP AFTER THE SEAL WAS RESET, SO IT WAS REMOVED FROM SERVICE PENDING FURTHER INVESTIGATION AND OUTREACH TO THE SUPPLIER. THE NEW FILTER LID DESIGN IN FILTER #1 WAS INSTALLED IN JUNE 2020, AT WHICH TIME THE VENDOR PROVIDED MANUFACTURERS SPECS/MAINTENANCE GUIDANCE. AS A RESULT OF THE INVESTIGATION, THE SUPPLIER PROVIDED ADDITIONAL TORQUE SPECIFICATIONS SPECIFIC TO THE NEW DESIGN. SINCE STAFF HAVE BEGUN UTILIZING THE VENDOR MAINTENANCE RECOMMENDATIONS, MINOT STAFF HAVE REPLACED THE O-RINGS IN EACH OF THE FILTERS MULTIPLE TIMES, AND HAVE NOT EXPERIENCED ANY ADDITIONAL SEEPS.
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.