DCP MIDSTREAM, LP — Type R reporting-regulated gas gathering — incident on 2023-12-14

Type R reporting-regulated gas gathering incident in ANDREWS, ANDREWS County, TX. Reported cause: INCORRECT OPERATION. Reported consequences: 0 fatalities, 0 injuries, 29700 NATURAL GAS released, $5,000 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: 20240003.

Operator ID: 31130.

Reported incident date: 12/14/2023 13:00.

Cause detail: PIPELINE OR EQUIPMENT OVERPRESSURED

Cause detail: ON 12/18/23 A SYSTEM BALANCE CHECK SHOWED A VOLUME IMBALANCE ACROSS THE DCP ANDREWS/JAMES LAKE GATHERING SYSTEMS. DCP FIELD OPERATIONS INVESTIGATED AND FOUND A RUPTURE ON THE L-1 LINE. THE L-1 IS A TYPE R GATHERING LINE. UPON LOSS AND UNACCOUNTABLE RECORDS REVIEW IT WAS DETERMINED THAT THE GAS/LOSS IN THE SYSTEMS HAD STARTED ON 12/14/2023 AT APPROXIMATELY 1:00 PM. GAS/LOSS WAS CALCULATED ON 12/18/2023 AT 10:16 AND DEEMED REPORTABLE. NOTIFICATIONS WERE MADE PROMPTLY AFTERWARDS. REPAIRS WERE COMPLETED ON 12/28/2023. PIPELINE WAS RETURNED TO SERVICE ON 04/01/2024. FAILURE CAUSED BY PRESSURE ABOVE NORMAL OPERATING PARAMETERS DUE TO A RECENT SYSTEM TIE-INS WITH INADEQUATE OVERPRESSURE PROTECTION. A TRAINING ON VALVE PLACEMENT AND OVERPRESSURE DEVICE INSTALLATION WAS CONDUCTED AND PRESSURE LIMITING DEVICES WERE INSTALLED AT ALL WELL LOCATIONS IN THE SYSTEM CAPABLE OF PRODUCING PRESSURE OVER NORMAL LIMITATIONS.