EXXONMOBIL PIPELINE CO

hazardous_liquid Incident —

Incident Information

Report Date
OperatorEXXONMOBIL PIPELINE CO
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates29.84648, -94.90373

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

WHILE CONDUCTING DAILY AUDIO, VISUAL, AND OLFACTORY (AVO) WALKTHROUGH WITHIN THE MONT BELVIEU STORAGE, THE OPERATOR DETECTED A FUGITIVE EMISSION COMING FROM TX-213 ETHYLENE TRAP AT 8:00 A.M. WHILE WORKING TO MITIGATE EMISSION SOURCE, OPERATIONS COORDINATED EFFORTS TO ACTIVATE BYPASS OPERATIONS, ALLOWING TO ISOLATE THE LEAK SOURCE, PERFORM MAINTENANCE, REMOVE THE VALVE, AND SEND OFF VALVE FOR REPAIR. A FAILURE ANALYSIS WAS CONDUCTED ON THE VALVE, CONCLUDING EXTERNAL CORROSION AROUND THE MACHINED SEALING SURFACE OF THE VALVE STEM. AN ESTIMATED .212 BARRELS / 8.898 GALLONS / 19.210 POUNDS OF ETHYLENE WAS RELEASED TO THE ATMOSPHERE.

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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