DCP MIDSTREAM, LP

gas_transmission Incident —

Incident Information

Report Date
OperatorDCP MIDSTREAM, LP
Commodity—
Pipeline Typegas_transmission

Location

State
Coordinates36.20960, -98.77207

Cause

CauseCORROSION FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

ON 10/4/2023 AT APPROXIMATELY 6:15AM CST A RESPONSE WAS INITIATED TO THE CM-10 CIMARRON GATHERING LINE BASED ON A LOW-PRESSURE ALARM RECEIVED BY CENTRALIZED BOOSTER MONITORING GROUP. RESPONSE EFFORTS CONCLUDED THAT THE CM-10 LINE HAD RUPTURED AT APPROXIMATELY 6:11 AM. THE ORION VOLUNTEER FIRE DEPARTMENT CHOSE TO CLOSE A RURAL ROAD AND EVACUATE 6 LOCAL HOMES. THE LINE WAS ISOLATED, SECURED, AND AN INVESTIGATION IS UNDERWAY. AT 4PM CST LOCAL NEWS COVERAGE RELEASED INCIDENT AND EVACUATION INFORMATION UNKNOWN TO OPERATOR. A SUBSEQUENT FLOW ANALYSIS CALCULATED RELEASE VOLUME GREATER THAN 3MMCF. SUPPLEMENTAL REPORT 12/12/23 : AMENDED PART G TO INCLUDE RESULTS FROM METALLURGICAL ANALYSES INDICATING INTERNAL CORROSION CAUSED BY TOP OF THE LINE CORROSION OCCURRING IN AN ENVIRONMENT CONTAINING CO2 AND WATER. RECEIVED THE METALLURGICAL REPORT 11/16/23. SUPPLEMENTAL REPORT 7/11/24. ADDED COST OF THE METALLURGICAL ANALYSIS REPORT.

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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