US EPA. Office of Research and Development, National Risk Management Research Laboratory, Ada, OK (EPA 600/R-00/000)
http://www.epa.gov/region8/superfund/wy/pavillion/index.html
[Fuelfix.com] The Environmental Protection Agency on Thursday linked hydraulic fracturing with groundwater contamination in Wyoming _ a first-of-its-kind conclusion by the federal agency that could trigger new scrutiny of the practice used to extract oil and natural gas nationwide.
The EPA announced its findings as part of a three-year probe into possible groundwater contamination in Pavillion, Wyo. In a draft report issued today, the agency said it had discovered synthetic chemicals — including glycols and alcohols — associated with gas production and hydraulic fracturing fluids inside deep water wells in the region.
Although the study is limited to a gas field in Wyoming and is only in a draft form, the EPA’s finding could be a game changer for the oil and gas industry, which has insisted that hydraulic fracturing is safe and should be regulated solely by state officials, rather than the federal government…