( September 18, 2025, 11:29 AM EDT) -- PITTSBURGH — In a study published Sept. 17, researchers at Pittsburgh-based universities have found that evidence related to a “frac-out” event in 2022 in western Pennsylvania resulted in “oil and gas brine contributions to water chemistries as well as fugitive methane with 62% of the well water samples” and geospatial analysis determined that the extent of the water contamination was wider than initially reported....