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4 ways Fracking can poison water supplies
Even more reasons why we don't need this
Stray methane gas from formations could leak from improperly constructed gas wells into shallow aquifers. Wastewater from shale gas drilling could spill at the surface or could be improperly disposed of in streams and rivers. Metals or radioactive elements could collect in rivers and streams where partially treated wastewater effluent is released. And freshwater withdrawals for fracking could stress groundwater availability in drought-prone regions, the study found.
http://www.naturalgaseurope.com/review-charts-potential-paths-to-water-contamination
