"Whether or not fracking causes groundwater pollution, people fear the risk enough that property values have dropped for homes with drinking-water wells near shale-gas pads, according to new research.
Researchers from the Unviersity of Calgary and Duke University studied property sales from 1994 to 2012 in 36 Pennsylvania counties and seven counties in New York. They mapped sales against the locations of shale-gas wells, and they compared homes connected to public drinking-water systems to homes with private wells.
Properties with private wells suffered a loss in value compared to properties connected to a municipal water system, they found, offsetting gains in value from mineral-rights royalties. The loss varied with distance from the nearest shale-gas well. At 1.5 kilometers, properties with private wells sold for about 10 percent less."
Jeff McMahon reports for Forbes April 10, 2014.