MAGELLAN PIPELINE COMPANY, LP
hazardous_liquid Incident —
Incident Information
| Report Date | — |
| Operator | MAGELLAN PIPELINE COMPANY, LP |
| Commodity | — |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 36.63216, -97.12579 |
Cause
| Cause | MATERIAL FAILURE OF PIPE OR WELD |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
WHILE CONDUCTING A HYDROSTATIC TEST ON THE #1-6 ENID TO PONCA CITY LINE SECTION, TEST WATER WAS DISCOVERED AT MP 42.22. UPON EXCAVATION A PINHOLE LEAK IN A GIRTH WELD WAS DISCOVERED. AFTER AN ENVIRONMENTAL REVIEW WAS CONDUCTED AT THE LEAK SITE, IT WAS DETERMINED THAT THE PINHOLE LEAK HAD BEEN PREVIOUSLY LEAKING PRIOR TO THE HYDROSTATIC TEST. THERE WAS NO SIGN OF A RELEASE AT THE HYDRO LEAK. A HOT SPOT WAS LATER FOUND AFTER FURTHER INVESTIGATION AND EXCAVATION. GROUNDWATER WELLS WERE INSTALLED FOR ONGOING REMEDIATION. THE METALLURGICAL ANALYSIS CONCLUDED THAT THE RELEASE WAS CAUSED BY A THROUGH-WALL PINHOLE IN THE GIRTH WELD. THE WELD LEAK PATH CONTAINED POROSITY WHICH WAS LIKELY FILLED WITH SLAG OR DEBRIS PREVENTING THE PRODUCT FROM NH3 FROM LEAKING PRIOR TO THE RELEASE EVENT.
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.