"An analysis of drinking water sampled from three homes in Bradford County, Pa., revealed traces of a compound commonly found in Marcellus Shale drilling fluids, according to a study published on Monday.

The paper, published in the Proceedings of the National Academy of Sciences, addresses a longstanding question about potential risks to underground drinking water from the drilling technique known as hydraulic fracturing, or fracking. The authors suggested a chain of events by which the drilling chemical ended up in a homeowner’s water supply.

“This is the first case published with a complete story showing organic compounds attributed to shale gas development found in a homeowner’s well,” said Susan Brantley, one of the study’s authors and a geoscientist from Pennsylvania State University."

Nicholas St. Fleur reports for the New York Times May 4, 2015. [2]

SEE ALSO:

"Study Links Foam in Water Wells To Shale Well Sites" (Pittsburgh Post-Gazette) [3]