MARATHON PIPE LINE LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorMARATHON PIPE LINE LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates42.51414, -84.24206

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

WOLVERINE RECEIVED A CALL FROM A LANDOWNER INDICATING ODORS AND SHEEN IN BAUER DRAIN. WOLVERINE INITIALLY RESPONDED, LATER NOTIFYING MARATHON PETROLEUM COMPANY. IT WAS DETERMINED THAT THE RELEASE WAS FROM A MARATHON PETROLEUM COMPANY TANK LINE, OPERATED BY WOLVERINE. INITIAL NRC CALL WAS MADE BY WOLVERINE. SUPPLEMENTAL NRC REPORTS WERE MADE BY MARATHON PIPE LINE. A GASKET FAILURE ON THE TANK LINE WAS INITIALLY IDENTIFIED AS THE LEAK SOURCE. AFTER THE COMPLETION OF THE INVESTIGATION IT WAS DETERMINED THAT THE GASKET FAILED DUE TO MISALIGNMENT DURING CONSTRUCTION. THE AMOUNT RELEASED WAS CALCULATED BASED ON FIELD INVESTIGATION DATA. BOOM WAS INITIALLY PLACED IN BAUER DRAIN AND RECOVERY WELLS INSTALLED TO COLLECT FREE PRODUCT. MPL HAS REMOVED 4,500 TONS OF NON-HAZARDOUS IMPACTED SOILS FROM THIS SITE. THIS IS AN ON-GOING REMEDIATION EFFORT AND THE REPORT INCLUDES THE ESTIMATED FINAL REMEDIATION COSTS.

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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