MAGELLAN PIPELINE COMPANY, LP

hazardous_liquid Incident —

Incident Information

Report Date
OperatorMAGELLAN PIPELINE COMPANY, LP
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates41.68401, -91.57031

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

AT 5:45 ON MARCH 9TH, 2021, MAGELLAN OPERATIONS PERSONNEL WERE CONDUCTING SAMPLING ON TANK 1390 WHEN A LEAK WAS IDENTIFIED AT THE TANK PUMP SEAL. THE PUMP WAS ISOLATED AND LOCKED OUT AND CLEANUP ACTIVITIES WERE INITIATED. THE SEAL FAILURE ANALYSIS INDICATES WEAR AT THE PRIMARY RING OD CONTACT POINT. THE SEAL POT WAS CONNECTED DIRECTLY TO THE PUMP, WHICH ALLOWED VIBRATION TO TRANSFER TO THE SEAL POT AND FLOAT SWITCH. THE LIKELY CAUSE OF FAILURE WAS EXCESSIVE STARTS/STOPS POSSIBLY DUE TO THE CHATTERING FLOAT SWITCH ON THE SEAL POT. THE SEAL POT HAS BEEN REMOUNTED TO THE PUMP BASE TO ISOLATE IT FROM VIBRATION. SUPPLEMENTAL/FINAL 5/18/2021 : UPDATED PARTS G6, H

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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