Average concentrations of constituents in tree-core samples at the Vienna Wells Site: Maries County, Missouri, 2012-2015

This dataset contains the tree-core data collected at the Vienna Wells Superfund site in Vienna, Missouri by the U.S. Geological Survey. Concentrations of tetrachloroethylene (PCE), trichloroethylene (TCE), and 1,1,2-Trichloro-1,2,2-trifluoroethane (CFC-113) are provided in nanograms per liter. Concentrations in tree-core samples are averages of multiple samples collected from each tree during one of six major phases from 2011 to 2015.