Tritium-helium-3 and tritium-based groundwater-age estimates from analyses of groundwater samples from the Great Miami buried-valley aquifer, southwestern Ohio, 1999, 2000, 2019, and 2020
The U.S. Geological Survey (USGS) in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 investigated the occurrence of per- and polyfluoroalkyl substances (PFAS) in groundwater from the Great Miami buried-valley aquifer (GM-BVA) of Southwestern Ohio. The 23 wells used for PFAS sampling …