The US government’s most comprehensive examination of hydraulic fracturing (“fracking”) and drinking water, which spanned four years, concluded that fracking, as it is being carried out and regulated, is not a threat to drinking water. “Hydraulic fracturing activities in the U.S. are carried out in a way that have not led to widespread, systematic impact on drinking water resources,” said Thomas Burke, deputy assistant administrator of the EPA’s office of research and development. “In fact, the number of documented impacts to drinking water is relatively low when compared to the number of fractured wells.” Read more.