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EPA's Study of Hydraulic Fracturing and Its Potential Impact on Drinking Water Resources

Data Reports for Retrospective Case Study in Northeastern Pennsylvania

EPA collected water samples from five retrospective case study locations in Colorado, North Dakota, Pennsylvania, and Texas. Samples were collected during multiple sampling trips beginning in fall 2011 and ending in spring 2013. Here are the results for the samples collected in northeastern Pennsylvania.

Please read the guide to data reports to learn more about the contents and layout of the data report. 

These data represent individual points in time. No inferences or conclusions can be drawn about whether these study sties may be associated with potential impacts on drinking water resources. 

Data Reports