Scientists use EPA data to point out high methane levels in Pa. water

Scientists use EPA data to point out high methane levels in Pa. water by E & E, March 30, 2012
U.S. EPA found high levels of methane in water from Dimock, Pa., consistent with leakage from gas drilling nearby, according to scientists who reviewed the data. According to test results from 11 wells, the agency discovered one with a methane level of 52 parts per million, which could be explosive. At least three others were above the state standard of 7 milligrams per liter, said Ronald Bishop, a chemist at the State University of New York’s College at Oneonta. … Two other scientists who have studied water in the area said the methane levels reported by EPA are signs that natural gas from the Marcellus Shale is getting into the surface water table.