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According to the NTSB's preliminary report, customers in the accident area received gas from a low-pressure (0.5 psi) distribution network which, in turn, was fed from a high-pressure (75 psi) main pipeline via regulators controlled by sensors measuring pressure in the low-pressure pipes. At the time of the accident, workers were replacing some ...
September 21 – A gas main pressure regulator failed in Rochester, New York, causing a series of explosion that lasted for four hours. Three people were killed, and 30 homes were destroyed. [18] October 31 – A Halloween parade in Pittsburgh, Pennsylvania was interrupted by four gas main explosions. 29 people were injured. [19]
During the days prior to the explosion, some residents reported smelling natural gas in the area. [34] [46] A source within PG&E reported a break in natural gas line number 132 caused the explosion. At the time of the explosion, the pressure within that part of the pipeline was 386–386.4 psi (2.661–2.664 MPa).
June 15 – A crew was welding on a gas main in Bryan, Ohio that had been shut off, when someone inadvertently opened a valve that fed gas into that main. The gas ignited, and exploded, seriously injuring two workers. [39] June 20 – A 12-inch diameter high-pressure propane pipeline, near Butler, Alabama, was ruptured by a road grader. A short ...
The explosion was blamed Sunday on a utility worker who accidentally punctured a high-pressure pipeline while looking for a leak. [ 100 ] 2012 (12 December) a 20-inch transmission line owned by NiSource Inc., parent of Columbia Gas, exploded, leveling 4 houses, between Sissonville and Pocatalico in Kanawha County, West Virginia (WV).
The natural gas transmission line is operated by Middleton-based Williams Cos. and the worker had dug through 22 inches of the pipeline, Jones said. Williams Cos. turned off the gas, Jones said ...
Residents of the adjacent residences on Brick Row walk passed the rubble pile on November 3, 2023. The 4 unit building was demolished following a gas main explosion and subsequent fire that ...
July 28 – A gas line explosion and fire occurred in Martin County, Texas, which injured four workers. A ditching truck hit an existing high-pressure gas line, causing an explosion and fire. [6] July 29 – A contractor ruptured a gas pipeline in Mont Belvieu, Texas, causing an explosion and fire. There were no injuries.