DCP MIDSTREAM, LP — Type R reporting-regulated gas gathering — incident on 2024-05-05

Type R reporting-regulated gas gathering incident in EUNICE, LEA County, NM. Reported cause: INCORRECT OPERATION. Reported consequences: 0 fatalities, 0 injuries, 28123 NATURAL GAS released, $0 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20240015.

Operator ID: 31130.

Reported incident date: 5/5/2024 20:00.

Cause detail: VALVE LEFT OR PLACED IN WRONG POSITION, BUT NOT RESULTING IN AN OVERPRESSURE

Cause detail: ROUTINE METER BALANCE REPORTING CONDUCTED 5/8/2024 INDICATED GAS LOSS WITHIN THE GATHERING SYSTEM BEGINNING ON 5/1/24 AND COINCIDING WITH A LINE STARTUP. OPERATIONS INVESTIGATED AND LOCATED AN OPEN VENT VALVE AT A BLOCK VALVE SETTING ON THE RETURNED-TO-SERVICE PIPELINE. NRC AND STATE AGENCIES WERE NOTIFIED ON 5/9/2024 OF POSSIBLE REPORTABLE GAS LOSS EVENT BASED ON INITIAL GAS LOSS CALCULATION. TWO UPDATED CALLS WERE MADE AS TOTAL LOSS CALCULATIONS WERE VERIFIED AND DEEMED REPORTABLE. FINAL LOSS CALCULATION OF 28,123 MCF WAS CONFIRMED ON 5/13/2024. COMPANY MAPPING SYSTEM UPDATED TO REFLECT CORRECT LOCATION OF VENT VALVE AND LINE CONFIGURATION. MAPPING UPDATES COMMUNICATED TO FIELD OPERATIONS.