Field properties and results of laboratory analysis of groundwater samples collected from 79 wells in Pike County, Pennsylvania, 1982-2015

Water-quality data for groundwater samples collected by the U.S. Geological Survey from 79 wells in Pike County, Pennsylvania, 1982-2015. Data consist of field properties and results of laboratory analysis for concentrations of inorganic constituents, dissolved gases (methane, ethane and propane), radon-222, gross alpha and beta radioactivity, radium-226, and volatile organic compounds (VOCs) and methane isotopic composition in groundwater samples. Dataset prepared as part of 2015 study for which 79 wells were sampled and includes comparable results for 18 of the 79 wells that were sampled for previous studies in years 1982, 2007, 2011-13. In 2015, groundwater samples from all 79 wells were analyzed for all constituents except radium-226, VOCs, and methane isotopic composition; samples from 13 wells were analyzed for radium-226, samples from 20 wells were analyzed for VOCs; and samples from 10 wells were analyzed for methane isotopic composition.