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Encana Says EPA Erred in Finding Fracking Chemicals in Wyoming

Dec. 20 (Bloomberg) -- Encana Corp. said the U.S. Environmental Protection Agency made errors when it found that chemicals used in extracting natural gas through hydraulic fracturing were found in an aquifer in Wyoming.

The EPA’s study didn’t take into account naturally-occurring chemicals in deep wells in the area and the possibility that the agency’s own test well may have contaminated water samples with unset cement, said David Stewart, Encana’s environment, health and safety lead in the region, in a conference call today.

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To contact the reporter on this story: Jeremy van Loon in Calgary at

To contact the editor responsible for this story: Jessica Resnick-Ault at

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