Groundwater is closely monitored, prior to and following drilling and fracturing operations. This well-regulated and critical process has never impacted groundwater, as you may know. U.S. Energy Sec. Moniz and countless other officials and experts, have confirmed this fact.
Recently, too, “A landmark federal study on hydraulic fracturing, or fracking, shows no evidence that chemicals from the natural gas drilling process moved up to contaminate drinking water aquifers at a western Pennsylvania drilling site,” as the Associated Press reports.