MARATHON PIPE LINE LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorMARATHON PIPE LINE LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates41.63744, -87.50158

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

ON 5/22/19 AT 2200 HOURS, TERMINAL OPERATOR DISCOVERED A SMALL PRODUCT RELEASE FROM A TANK VALVE ON TRANSMIX TANK T-5. THE LEAK WAS STOPPED BY CLOSING A SMALL NEEDLE VALVE ON THE BODY RELIEF. INITIAL CLEAN-UP WAS PERFORMED BY THE TERMINAL PERSONNEL AND TOTALLY CONTAINED ON OPERATOR PROPERTY. TOTAL VOLUME RELEASED HAS BEEN DETERMINED TO BE 73.5 GALLONS. ROOT CAUSE ANALYSIS HAS DETERMINED THE CAUSE TO BE A SMALL NEEDLE VALVE ATTACHED TO THE VALVE BODY RELIEF WAS LEFT OPEN AND WHEN PRESSURE BUILT UP, THE PRODUCT RELEASED THROUGH THE OPEN PATH.

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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