Hydraulic fracturing, or fracking, has been known by the EPA to contaminate underground sources of drinking water since 1987. In a 25-year old investigative report, discovered by the Environmental Working Group (EWG) and Earthjustice, the EPA outlines how fracking for shale gas contaminated a domestic water well in West Virginia.
In a full-length report, called “Cracks in the Façade,” the EWG describes how the uncovered document contradicts the gas industry’s claim that there are no documented cases of water contamination due to fracking.
The EPA found that fluid from a shale gas well more than 4,000 feet deep contaminated well water and that the incident was “illustrative” of pollution problems associated with oil and gas drilling. With now-uncharacteristic candor, the EPA report outlines how the contamination occurs: “During the fracturing process…fractures can be produced, allowing migration of native brine, fracturing fluid and hydrocarbons from the oil or gas well to a nearby water well. When this happens, the water well can be permanently damaged and a new well must be drilled or an alternative source of drinking water found.”