"ONEOK NGL PIPELINE, LLC"

hazardous_liquid Incident — — August 28, 2018

Incident Information

Incident DateAugust 28, 2018
Operator"ONEOK NGL PIPELINE, LLC"
CommodityHVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI
Pipeline Typehazardous_liquid

Location

State
Coordinates31.15436, -95.80716

Cause

CauseEQUIPMENT FAILURE
SubcauseNON-THREADED CONNECTION FAILURE

Casualties

Fatalities0
Injuries0

Costs

Property Damage$75
Emergency Response$500
Other Costs$0

Location Map

Incident Narrative

"AT APPROXIMATELY 10:05 ON 8/28/2018 ONEOK PIPELINE CONTROL CENTER RECEIVED HAZARDOUS ATMOSPHERE ALARMS FOR ONEOK'S ARBUCKLE PIPELINE MIDDLETON PUMP STATION. THE ALARM ACTIVATED THE PUMP SHUTDOWN AND STATION ISOLATION. ONEOK PIPELINE CONTROL CENTER CONTROLLER NOTIFIED FIELD PERSONNEL OF THE ALARM AND DISPATCHED A ONEOK REPRESENTATIVE TO THE LOCATION. UPON ARRIVAL, THE ONEOK REPRESENTATIVE IDENTIFIED GASKET BETWEEN FLANGES ON THE PUMP HEADER TO BE THE SOURCE OF THE RELEASE. HE THEN FURTHER ISOLATED THE SEGMENT AND BEGAN TO PURGE THE SECTION OF HYDROCARBONS. THE FAILED GASKET WAS REMOVED AND REPLACED WITH A NEW GASKET AND NEW BOLTS WERE INSTALLED AND TORQUED TO MANUFACTURES SPECIFICATIONS AND THE STATION WAS RETURNED TO SERVICE."

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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