KINDER MORGAN ALTAMONT LLC — Type R reporting-regulated gas gathering — incident on 2025-04-29

Type R reporting-regulated gas gathering incident in DUCHESNE, DUCHESNE County, UT. Reported cause: OTHER INCIDENT CAUSE. Reported consequences: 0 fatalities, 0 injuries, 273.3 NATURAL GAS released, $230,000 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: 20250018.

Operator ID: 38947.

Reported incident date: 4/29/2025 3:10.

Cause detail: MISCELLANEOUS

Cause detail: ON APRIL 29 2025 AT 3:10 AM. KM PERSONNEL AND FIRE DEPARTMENT WERE NOTIFIED BY THE LEASE OPERATOR. THE LEASE OPERATOR SHUT IN THE WELL AND THE POWER. KM ISOLATED THE RESIDUE AND SALES PIPELINES. THE FIRE DEPARTMENT WAS THEN ABLE TO EXTINGUISH THE FIRE. THERE WERE NO INJURIES, ROAD CLOSURES OR EVACUATIONS. THE PIPELINE IS GATHERING TYPE R. THE NATURAL GAS RELEASE WAS 273.3 MCF. ON THE INVESTIGATION OF THE RELEASE AND FIRE, A CRIMP FITTING ON THE FLEX PIPE WAS FOUND TO BE INSTALLED ON THE FLEX PIPE TO A DEPTH OF 1 3/8 INCHES. NORMAL CRIMP FITTINGS ARE INSTALLED TO A DEPTH OF 4.5 INCHES. BECAUSE THE LACK OF DEPTH OF INSTALLATION, THE O-RINGS ON THE CRIMP FITTING WERE NOT COMPLETELY ENGAGED, WHICH OVER TIME, WOULD CAUSE THE CRIMP FITTING TO FAIL. THE FITTING WAS INSTALLED IN 2014. THE ESTIMATES FOR REPAIRING THE DAMAGES FROM THIS INCIDENT WERE RECEIVED ON MAY 21, PUTTING THE REPAIR COST AT APPROXIMATELY $230,000.