MARATHON PIPE LINE LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorMARATHON PIPE LINE LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates39.63255, -87.28413

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 DECEMBER 20, 2017, A FIELD TECHNICIAN WAS ONSITE TO PERFORM WINTER MAINTENANCE OF A SUMP TANK WHEN A RELEASE OCCURRED. WHILE ADDING OIL TO THE SUMP, OIL FLOWED THROUGH THE SEAL BYPASS LINE, WHICH ALLOWED PRODUCT TO BACKFLOW AND LEAK FROM THE PUMP SEAL CAVITIES. PRELIMINARY INVESTIGATION FINDINGS INDICATE THE DRAIN VALVE WAS PLACED IN THE OPEN POSITION. TOTAL VOLUME ESTIMATE IS APPROXIMATELY 7 GALLONS. ALTHOUGH THIS RELEASE OCCURRED DURING ROUTINE MAINTENANCE, ALL PRODUCT WAS CONTAINED ONSITE AND CLEANED UP PROMPTLY. THIS ACCIDENT REPORT IS BEING FILED TO ENSURE COMPLIANCE WITH 195.50. INVESTIGATION FINDINGS INDICATE THAT THE CAUSE OF THIS RELEASE WAS DUE TO INCORRECT OPERATIONS. NON-STANDARD EQUIPMENT DESIGN AND AN INADEQUATE PROCEDURE MAY HAVE CONTRIBUTED TO THE CAUSE OF THIS RELEASE. 2/26/18: PART C, QUESTION 3 - UPDATED ITEM INVOLVED TO ""OTHER - BACKFLOW THROUGH DRAIN LINE."". PART G, QUESTION 3 - UPDATED TO INCLUDE ""NON-STANDARD EQUIPMENT DESIGN"". PART H - UPDATED THE NARRATIVE WITH INVESTIGATION RESULTS.

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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