ONEOK NGL PIPELINE, LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorONEOK NGL PIPELINE, LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates32.00990, -102.93250

Cause

CauseEQUIPMENT FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

ON MAY 19TH AT 10:16 A.M. A LANDOWNER CONTACTED ONEOK PIPELINE CONTROL VIA THE EMERGENCY PHONE NUMBER REGARDING A POSSIBLE HYDROCARBON RELEASE AT MP 59 IN WINKLER COUNTY, TEXAS. PIPELINE CONTROL CENTER DISPATCHED THE LOCAL OPERATIONS EMPLOYEE TO THE LOCATION. LOCAL OPERATIONS PERSONNEL ARRIVED ONSITE AT 11:24 A.M. AND CONFIRMED THE LEAK WAS ON THE 18-INCH SCRAPER TRAP DOOR. AT 11:24 A.M. THE TRAP WAS ISOLATED AND BLOWN DOWN. UPON INVESTIGATION IT WAS DETERMINED THAT THE O-RING ON THE SCRAPER TRAP WAS DAMAGED IN ONE PLACE. AT 12:25 A.M. THE O-RING HAD BEEN REPLACED AND THE BARREL RETURNED TO SERVICE. BOTH O-RING MATERIAL AND GREASE COMPATIBILITY HAVE NOT BEEN IDENTIFIED AS CONTRIBUTING TO THE FAILURE. AN O-RING AWARENESS DOCUMENT SPECIFIC TO DAMAGE IDENTIFICATION AND PREVENTION IS UNDER DEVELOPMENT IN RESPONSE TO THE INCIDENT. UPDATE: 6/23/2020 ONEOK DOES NOT BELIEVE THE FAILURE WAS DUE TO DESIGN OR COMMODITY INCOMPATIBILITY.

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.

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