EPA fracking report offers few answers on drinking water

Is hydraulic fracturing — better known as fracking — safe, as the oil and gas industry claims? Or does the controversial drilling technique that has spurred a domestic energy boom contaminate drinking water, as environmental groups and other critics charge? After six years and more than $29 million, the Environmental Protection Agency says it doesn’t know. A new report said fracking poses a risk to drinking water in some circumstances, but a lack of information precludes a definitive statement on how severe the risk is. “Because of the significant data gaps and uncertainties in the available data, it was not possible to fully characterize the severity of impacts, nor was it possible to calculate or estimate the national frequency of impacts on drinking water resources” from fracking activities, the EPA said in a report that raises more questions than answers.The report removes a finding from a draft issued last year indicating that fracking has not caused “widespread, systemic” harm to drinking water in the United States. Industry groups had hailed the draft EPA study as proof that fracking is safe, while environmentalists seized on the report’s identification of cases where fracking-related activities polluted drinking water.