DCP MIDSTREAM

hazardous_liquid Incident —

Incident Information

Report Date
OperatorDCP MIDSTREAM
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates30.98902, -101.07870

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

ON 7/24 A DCP EMPLOYEE NOTICED A RELEASE AT A VALVE ASSEMBLY WHILE PREPARING FOR AN UPCOMING ILI TOOL RUN. THE RELEASE WAS TEMPORARILY REPAIRED WITH A PRESSURE CONTACTING CLAMP UNTIL THE PERMANENT REPAIR WAS SCHEDULED. ON 7/26 IT WAS NOTICED THAT THE TEMPORARY REPAIR WAS LEAKING, AND AT THIS TIME THE CREW WITH EQUIPMENT WAS IN ROUTE TO PERFORM THE PERMANENT REPAIR. 7/29 THE FLANGE AND GASKET WERE REPLACED AND THE REPAIR WAS COMPLETE. THIS SEGMENT, WHERE THIS VALVE ASSEMBLY IS LOCATED, HAS TWO OUTLETS AND DELIVERIES ARE MADE CONCURRENTLY , IT IS BELIEVED THAT DUE TO THE FLUCTUATION OF VOLUME AND PRESSURE THE GASKET WAS EXPOSED TO GREATER EXPANSIONS AND CONTRACTIONS. AS A PREVENTATIVE MEASURE ON THIS LATERAL THE OPERATION TECHNICIANS WILL CONDUCT ADDITIONAL TESTING AROUND THE FLANGES DURING THE DOT CHECKS AT THE 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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