ONEOK NGL PIPELINE, LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorONEOK NGL PIPELINE, LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates29.85731, -94.89547

Cause

CauseCORROSION FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

AT 8:00 AM ON 1/01/2014 AN ENTERPRISE OPERATOR CONTACTED ONEOK MT. BELVIEU STORAGE, (OMBS) REQUESTING ASSITANCE IN IDENTIFYING THE OWNER OF VAPOR LEAK AT ARCO JCT. OMBS OPERATOR DETERMINED THE SOURCE TO BE A 2"" LATERAL CONNECTED TO ONEOK'S 1A PIPELINE. THE 1A PIPELINE IS A 6 INCH PIPELINE THAT CONNECTS OMBS TO ONEOK'S MT. BELVIUE #1 FRACTIONATOR. THE PIPELINE WAS SHUTDOWN AND ISOLATED. PIPELINE PRESSURE AT TIME OF DISCOVERY WAS 218 PSI. A PLIDCO WAS INSTALLED OVER THE LEAK SITE AND ONEOK IS IN THE PROCESS OF PREPARING A PLAN TO REMOVE THE 2"" LATERAL FROM 6"" 1A PIPELINE. THE SOURCE OF THE LEAK WAS EXTERNAL CORROSION, LOCALIZED PITTING. THE PIPELINE WAS CONSTRUCTED IN 1957.

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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