Treated hydraulic fracturing wastewater may pollute area water sources for years

Treated hydraulic fracturing wastewater may pollute area water sources for years

Depth profiles of sediment contaminants in Conemaugh River Lake. Highlighted bands denote 2006 - 2011. Isotope ratios of radium indicate Marcellus Shale.

Depth profiles of sediment contaminants in Conemaugh River Lake. Highlighted bands denote 2006 - 2011. Isotope ratios of radium indicate Marcellus Shale.

Image: Penn State