ONEOK NGL PIPELINE, LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorONEOK NGL PIPELINE, LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates32.40217, -102.69515

Cause

CauseINCORRECT OPERATION
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

AT APPROXIMATELY 12:10 ON 2/26/2018, THE ONEOK PIPELINE CONTROL CENTER RECEIVED A CALL FROM A DCP EMPLOYEE AT THE DCP ANDREWS METER STATION CONNECTION, ADVISING OF VAPOR RELEASE ON ONEOK'S METER PIPING. THIS CONNECTION IS NOT ACTIVE AT THIS TIME. ONEOK FIELD EMPLOYEES RESPONDING TO THE CALL DETERMINED THE LEAK ORIGINATED BETWEEN TWO FLANGES WHERE A FLEXITALLIC GASKET AND A FIBER INSULATOR GASKET HAD BEEN IMPROPERLY INSTALLED TOGETHER. THE INSULATOR GASKET HAD FAILED AND WAS THE CAUSE OF THE LEAK. THE PIPING WAS ISOLATED AND DE-PRESSURED. THE FLEXITALLIC GASKET WAS REMOVED AND A NEW INSULATOR GASKET INSTALLED BETWEEN THE FLANGES AND RETURNED TO NORMAL OPERATIONS. ONEOK'S INVESTIGATION DETERMINED THE GASKETS HAD BEEN IMPROPERLY INSTALLED IN 2012 BY THE PREVIOUS OPERATOR OF THE ASSET.

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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