EXXONMOBIL PIPELINE COMPANY LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorEXXONMOBIL PIPELINE COMPANY LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates29.97403, -94.05685

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

ON OCTOBER 17, 2024, A HEBERT TANK FARM OPERATOR WAS PERFORMING A DAILY STATION CHECK AND NOTICED DISCOLORATION AROUND THE TANK VALVE ON TANK 3008 (GASOLINE SERVICE). EMPLOYEES BEGAN HYDRO EXCAVATING BELOW GRADE FOR OBSERVATION. AT 8:00 A.M. ON OCTOBER 18, 2024, RESIDUAL COULD BE SEEN IN THE POTHOLE. SAMPLES WERE PULLED FOR ANALYSIS AND GASOLINE WAS DETERMINED TO BE PRESENT. EMPLOYEES THEN BEGAN DRAINING THE TANK, WHICH WAS STATIC AT THE TIME OF THE RELEASE, AS HYDRO EXCAVATION OPERATIONS CONTINUED IN ORDER TO DETERMINE THE ORIGIN OF THE LEAK. ON OCTOBER 19, 2024, AT 5:00 P.M. THE RELEASE SOURCE WAS DETERMINED TO BE A FAILED VALVE GASKET. DURING THIS EVENT, AN ESTIMATED 7 GALLONS (0.17 OF A BARREL) OF GASOLINE WERE RELEASED. THROUGHOUT THE EVENT, SECONDARY CONTAINMENT WAS MAINTAINED AT THE LEAK LOCATION. DIKE WALL DRAINAGE VALVES WERE LOCKED IN THE CLOSED POSITION. THE VALVE GASKET WAS REPLACED, AND THE VALVE WAS REINSTALLED.

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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