Great Artesian Basin Protection Group

http://www.propublica.org/article/officials-in-three-states-pin-water-woes-on-gas-drilling-426

“Officials in Garfield County, Colo., were waiting for the results of the three-part, three-year study examining the connections between methane leaks and drilling there.

The report is significant because it is among the first to broadly analyze the ability of contaminants to migrate underground in drilling areas, and to find that such contamination was in fact occurring. It examined over 700 methane samples from 292 locations and found that methane, as well as wastewater from the drilling, was making its way into drinking water not as a result of a single accident but on a broader basis.”