ONEOK NGL PIPELINE LP
hazardous_liquid Incident — — December 24, 2010
Incident Information
| Incident Date | December 24, 2010 |
| Operator | ONEOK NGL PIPELINE LP |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 33.45494, -96.35925 |
Cause
| Cause | MATERIAL FAILURE OF PIPE OR WELD |
| Subcause | DESIGN-, CONSTRUCTION-, INSTALLATION-, OR FABRICATION-RELATED |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $115,000 |
| Emergency Response | $10,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
PASSERBY NOTICED VAPORS COMING FROM THE GROUND AND NOTIFIED TRENTON FIRE DEPARTMENT. TRENTON FIRE DEPARTMENT CONTACTED ONEOK NGL PIPELINE, PIPELINE CONTROL CENTER. PIPELINE WAS SHUTDOWN AND SECTION WAS ISOLATED. SEGMENT WAS ISOLATED BY STOPPLE, DEFECTIVE WELD WAS REMOVED AND REPLACED. METALLURGICAL ANALYSIS IDENTIFIED THE CAUSE OF THE LEAK TO BE; BURN THROUGH NEAR THE BOTTOM WELD BUTTON DURING ORIGINAL CONSTRUCTION. AS A RESULT OF THE BURN THROUGH, THERE WAS NO ROOT BEAD, AND THE GEOMETRY OF THE CONSEQUENT HOT PASS AND CAP ALLOWED GRADUAL EROSION OF THE WELD, WHICH RESULTED IN THE LEAK.
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.