The biggest fear for the American public surrounding hydraulic fracturing is the potential for fracking fluids to contaminate drinking-water sources. Based on a recent U.S. Geological Survey study, though, some of those concerns may not be as warranted as originally thought. Over a one-year period, the study found no change in indicator contaminant levels from a random sampling of wells in the Fayetteville shale play. 

Oil and gas drillers in the U.S. will boast about news like this, but hydraulic fracturing isn't quite out of the woods yet. In this video, contributor Tyler Crowe discusses some of the other hurdles fracking will face and suggests some companies that are pioneering ways to deal with it. 

Fool contributor Aimee Duffy has no position in any stocks mentioned. Fool contributor Tyler Crowe owns shares of Nuverra Environmental Solutions. You can follow them both on Twitter, @TMFDuffy and TMFDirtyBird, respectively.

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