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 porewater contaminants in Conemaugh River Lake. Highlighted bands denote 2006 - 2011. Isotope ratios of strontium indicate Marcellus Shale.

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

Image: Penn State