MAGELLAN PIPELINE COMPANY, LP

hazardous_liquid Incident —

Incident Information

Report Date
OperatorMAGELLAN PIPELINE COMPANY, LP
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates37.21339, -93.94433

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 JANUARY 10TH, 2022 AT 08:50, THE MAGELLAN OPERATIONS CONTROL CENTER RECEIVED A HIGH SUMP ALARM. THE LINE WAS SHUT DOWN AND FIELD PERSONNEL WERE DISPATCHED TO THE SITE. ONCE ONSITE, IT WAS DETERMINED THAT THE SUMP HAD OVERFILLED. VALVES WERE CLOSED, CLEANUP ACTIVITIES WERE INITIATED, AND THE SUMP WAS PUMPED DOWN. AFTER FURTHER INVESTIGATION, IT WAS DETERMINED THAT THE BODY RELIEF ON MOV 3 WAS SET AT 1295 PSI, WHICH IS LOWER THAN THE 1300 PSI DISCHARGE PRESSURE. THIS ALLOWED CONTINUOUS RELIEF INTO THE SUMP AND CAUSED THE SUMP TO OVERFLOW. THE RELIEF SET POINT WAS RAISED TO 1400 PSIG AND THE RELIEFS WILL BE REPLACED WITH DIFFERENTIAL RELIEF VALVES THAT RELIEVE TO THE UPSTREAM PORT IN THE VALVE BODY INSTEAD OF THE SUMP.

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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