DCP MIDSTREAM

hazardous_liquid Incident —

Incident Information

Report Date
OperatorDCP MIDSTREAM
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates32.17712, -93.03417

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

MOISTURE AND/OR DEBRIS ACCUMULATED IN THE PILOT SUPPLY. FREEZING WEATHER CONDITIONS MAY HAVE RESULTED IN LACK OF SUPPLY PRESSURE CAUSING MALFUNCTION OF THE VALVE. ADDITIONALLY, DEBRIS WAS FOUND IN THE PILOT ASSEMBLY DURING REPAIR OF THE PILOT OPERATED RELIEF VALVE. ONE OR A COMBINATION OF THESE FACTORS IS BELIEVED TO BE CAUSE THE MALFUNCTION. THE RELIEF VALVE HAS BEEN TAKEN OUT OF SERVICE AND OVERPRESSURE PROTECTION IS PROVIDED BY SECONDARY RELIEF VALVE UNTIL CORRECTIVE PLAN HAS BEEN IMPLEMENTED. THE CORRECTIVE ACTION IS TO REMOVE THE PILOT OPERATED RELIEF VALVE AND REPLACE WITH A CONVENTIONAL DESIGN RELIEF VALVE.

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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