ONEOK NGL PIPELINE, LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorONEOK NGL PIPELINE, LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates32.01987, -102.02241

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

AT APPROXIMATELY 03:26 AM ON JULY 19TH 2017, ONEOK PIPELINE CONTROL CENTER RECEIVED A HAZARDOUS ATMOSPHERIC LOCK-OUT AND STATION SHUTDOWN AT ONEOK'S MIDLAND PUMP STATION LOCATED NEAR MIDLAND, TEXAS. LOCAL FIELD OPERATIONS EMPLOYEES WERE NOTIFIED AND DISPATCHED TO THE LOCATION. FIELD EMPLOYEES ARRIVED AT THE STATION AT APPROXIMATELY 04:27 AM AND IDENTIFIED A ""HISSING"" SOUND COMING FROM THE DOOR ON THE SCRAPER TRAP. EMPLOYEES ISOLATED THE TRAP AND RELIEVED THE RESIDUAL PRODUCT TO THE FLARE SYSTEM. UPON OPENING THE SCRAPER TRAP DOOR, IT WAS DETERMINED THE O-RING IN THE CLOSURE HAD FAILED CAUSING THE RELEASE. A NEW O-RING WAS INSTALLED AND THE SCRAPER TRAP WAS RETURNED TO SERVICE AT APPROXIMATELY 05:57 AM.

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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