Bok
10-21-2011, 09:36 PM
The EPA took another step toward tightening oversight of hydraulic fracturing today, announcing it would initiate a process to set national rules for treating wastewater discharged from gas drilling operations.
Until now, the agency has largely left it to states to police wastewater discharges. Some have allowed drillers to pump waste through sewage treatment plants that aren't equipped to remove many of the contaminants, leading to pollution in some rivers and to problems at drinking water facilities.
[More] (http://www.scientificamerican.com/article.cfm?id=epa-plans-issue-rules-fracking-wastewater)
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Until now, the agency has largely left it to states to police wastewater discharges. Some have allowed drillers to pump waste through sewage treatment plants that aren't equipped to remove many of the contaminants, leading to pollution in some rivers and to problems at drinking water facilities.
[More] (http://www.scientificamerican.com/article.cfm?id=epa-plans-issue-rules-fracking-wastewater)
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