On August 3, The New York Times published an article that begins:

For decades, oil and gas industry executives as well as regulators have maintained that a drilling technique known as hydraulic fracturing, or fracking, that is used for most natural gas wells has never contaminated underground drinking water.

Agency to conduct field work in various regions of the country starting this summer

WASHINGTON (EPA) - The U.S. Environmental Protection Agency (EPA) today, in keeping with the administration’s focus to ensure that the agency leverages domestic resources safely and responsibly, announced the next steps in its congressionally mandated hydraulic fracturing study. EPA has identified seven case studies to help inform the assessment of potential impacts of hydraulic fracturing on drinking water resources.