Back in 2011, the EPA found chemicals in Wyoming drinking water that fit the profile of fracking contamination. They were in the beginning of an investigation into the environmental impact of natural gas extraction. A little less than a year ago, the EPA said that after five years of studying Wyoming fracking, there were risks but nothing that would constitute a systematic problem for drinking water supplies. Our own Meteor Blades pointed out that the “study” was woefully incomplete and the headlines of safe drinking water was probably a mirage. Scientists from Stanford University released a new study on Thursday that says underground drinking water supplies were clearly impacted by hydraulic fracturing.