Leaders of the House Energy & Commerce Committee, including chairman Fred Upton (R-MI), Joe Barton (R-TX), and Ed Whitfield (R-KY), sent a letter to Environmental Protection Agency (EPA) Administrator Gina McCarthy posing a number of questions regarding EPA’s studies of suspected water pollution near hydraulic fracturing sites in Texas, Pennsylvania and Wyoming. The GOP leaders are questioning EPA’s authority to conduct these now defunct investigations on groundwater contamination. It is unlikely that any of the data collected at these sites will be used as part of the larger EPA study. While GOP leaders are questioning whether EPA can use its emergency authority under the SDWA or CERCLA to conduct these types of studies, it is likely EPA will continue to have and use its authority to conduct similar studies.