​​​This information is preliminary and subject to change.

​On November 6, 2024, about 3:09 p.m., a natural gas-fueled explosion fatally injured one person and destroyed a home in South Jordan, Utah.[1] There were no other injuries reported. Several nearby residences were damaged, and families were displaced. The South Jordan Fire Department responded and arrived on scene in about 6 minutes. Enbridge Inc. (Enbridge) subsidiary, Enbridge Gas Utah, provided natural gas service to the home.[2] Enbridge responded and arrived on scene about 3:45 p.m. and worked continuously to find and isolate the leak; Enbridge isolated the leak about 12:16 p.m. on November 7. At the time of the explosion, conditions were daylight and clear; the temperature was 41°F with no precipitation.

​After the accident, Enbridge found a leak about 150 feet northeast of the home on a 4-inch diameter Aldyl A natural gas main it owned and operated.[3] The Aldyl A main was manufactured and installed in 1976 and operated at a pressure of about 45 psig, below the legal maximum allowable operating pressure of 60 psig. Enbridge detected subsurface gas between the main and two neighboring residences, including the accident home and the home immediately to the north. The subsurface gas extended from the main to the backyard and front yard of each home, reaching about 250 feet from the leak. Enbridge also detected gas in the atmosphere of the neighboring home after the accident.

Before National Transportation Safety Board (NTSB) investigators arrived, Enbridge conducted pressure testing; completed leak surveys; and removed, retained, and repaired the failed main. After NTSB investigators arrived, Enbridge continued testing for gas in the area surrounding the exploded home.

​While on scene, NTSB investigators examined the site where the explosion occurred, reviewed Enbridge’s operational procedures, gathered documentation, conducted interviews, and recovered physical evidence for examination by the NTSB Materials Laboratory. Preliminary information indicates that none of the five residents reported smelling gas before the explosion and there was not a natural gas alarm in the accident home.[4]

The NTSB’s investigation is ongoing. Future investigative activity will focus on Enbridge’s integrity management program, emergency response procedures, public awareness program, and pipeline safety management system, as well as other causal factors.

Parties to this NTSB investigation include: 

• ​the Pipeline and Hazardous Materials Safety Administration; 
• the Utah Department of Public Safety, Office of the State Fire Marshal; 
• the Utah Department of Commerce, Division of Public Utilities, Pipeline Safety Section; 
• the City of South Jordan; and Enbridge.​