"ONEOK NGL PIPELINE, LLC"
hazardous_liquid Incident — — July 22, 2015
Incident Information
| Incident Date | July 22, 2015 |
| Operator | "ONEOK NGL PIPELINE, LLC" |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 32.60333, -98.11472 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | OTHER EQUIPMENT FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $144,000 |
| Emergency Response | $2,500 |
| Other Costs | $0 |
Location Map
Incident Narrative
"AT APPROXIMATELY 18:57 ON 7/22/2015 A ONEOK EMPLOYEE CONDUCTING RIGHT OF WAY CLEARING ACTIVITIES DISCOVERED DEAD VEGETATION ON THE ONEOK 14"" WTLPG PIPELINE EASEMENT AT MILE POST 52. UPON FURTHER INVESTIGATION THE EMPLOYEE DETERMINED A PRESENCE OF HYDROCARBONS IN THE SOIL AND CONTACTED THE PIPELINE SUPERVISOR. THE PIPELINE SUPERVISOR ALONG WITH THE ONEOK PIPELINE CONTROL CENTER IMMEDIATELY BEGAN REDUCING PRESSURE ON THE PIPELINE AND THE 13 MILE SECTION OF PIPELINE CONTAINING THE SUSPECTED LEAK WAS ISOLATED AND REMOVED FROM SERVICE. NITROGEN WAS USED TO PURGE THE HYDROCARBONS FROM THE ISOLATED SEGMENT. ONCE PURGED, THE SUSPECTED LEAK SITE WAS EXCAVATED AND IT WAS DETERMINED A WELD, OVER A STUD BOLT, ON A LEAK CLAMP INSTALLED IN 2010 HAD A PIN HOLE ALLOWING HYDROCARBONS TO BE RELEASED. A 40.1' SECTION OF PIPE CONTAINING THE PREVIOUSLY INSTALLED LEAK CLAMP WAS REMOVED FROM THE PIPELINE AND NEW PRE-TESTED PIPE WAS INSTALLED. THE PIPELINE WAS RETURNED TO SERVICE AT 23:00 HRS. ON JULY 25, 2015."
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.