Fracking and Water Don't Mix

What's the impact of hydraulic fracturing, or fracking, on water supplies?

Pretty serious, according to a recent study in which "researchers found that disposal of the large amounts of fracking well wastewater presents risks from salts and radioactive materials that are 'several orders of magnitude larger' than for other potential water pollution pathways."

And since companies can legally keep their fracking wastewater contaminants a secret, nobody knows what's being dumped into rivers, groundwater supplies or treatment plants.