ENTERPRISE PRODUCTS OPERATING LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorENTERPRISE PRODUCTS OPERATING LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates29.35890, -95.85094

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

IN REFERENCE TO PARTS A(6), F,AND I, THIS REPORT IS BEING MADE AS PART OF A COMPREHENSIVE REVIEW AND ANALYSIS OF PRIOR INCIDENTS OR NEAR MISSES INVOLVING FLASH FIRE OR IGNITION OF FLAMMABLE VAPORS, PURSUANT TO A COMPLIANCE ORDER ISSUED BY PHMSA (CPF NO. 4-2014-5017). A FLASH FIRE OCCURRED AT A RECENTLY COMPLETED WELD WHEN AIR MOVERS WERE BEING RELOCATED. A VALVE (HV-3) UPSTREAM OF THE WELD LOCATION WAS NOT SEALING RESULTING IN LEAKING HYDROCARBONS. AIR MOVERS WERE UTILIZED TO PULL THE HYDROCARBON VAPORS AWAY FROM THE WELDING LOCATION. PRIOR TO THE START OF WELDING, LEL LEVELS WERE CHECKED INITIALLY, DOCUMENTED ON THE PERMIT AND PERIODICALLY THROUGHOUT THE WELDING JOB. THESE CHECKS INDICATED A 0% LEL READING WHILE THE AIR MOVERS WERE IN OPERATIONS. WHEN THE AIR MOVERS WERE SHUTDOWN TO ACCOMMODATE MOVING ONE OF THE AIR MOVERS, HYDROCARBON VAPORS CAME IN CONTACT WITH HOT METAL (POST WELDING) AT THE WELD LOCATION AND IGNITED. POST INCIDENT, CONTINUOUS GAS MONITORING PERFORMED IN THE WORK AREA INDICATED A 0% LEL READINGS WHILE THE AIR MOVERS WERE IN OPERATIONS.

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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