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Data for depth of groundwater used for drinking-water supplies in the United States
This data release includes grids representing the depth and thickness of drinking-water withdrawal zones, polygons of hydrogeologic settings, an inventory of sources of well... -
Data from Decadal Change in Groundwater Quality Web Site, 1988-2020
Evaluating Decadal Changes in Groundwater Quality: Groundwater-quality data were collected from 5,000 wells between 1988-2001 (first decadal sampling event) by the National... -
Data for Elevated Manganese Concentrations in United States Groundwater,...
Chemical data from 43,334 wells were used to examine the role of land surface-soil-aquifer connections in producing elevated manganese concentrations (>300 µg/L) in United... -
Data for Time Scales of Arsenic Variability and the Role of High-Frequency...
This data release consists of data (in four tables) for assessing the time scales of arsenic variability in three production wells in New Hampshire; tables that describe the... -
Data for Radium Mobility and the Age of Groundwater in Public-drinking-water...
High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H,... -
Data for Groundwater age and susceptibility of south Atlantic and Gulf Coast...
This data release documents eight Microsoft Excel tables; four which contain data for understanding groundwater ages in the South East Coastal Plain (SECP), Coastal Lowlands... -
Data for Assessing the Susceptibility of Groundwater Using Environmental...
This data release documents four tables that contain data for assessing the susceptibility of groundwater using environmental tracers collected from public-supply wells located... -
Data for assessing the susceptibility of groundwater used for drinking water...
Groundwater age distribution and susceptibility to natural and anthropogenic contaminants were assessed for selected principal aquifers of the Western United States: the Central... -
Datasets of Groundwater-Quality and Select Quality-Control Data from the...
Groundwater-quality data were collected from 983 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program and... -
Data Release for Hydrocarbons in Upland Groundwater, Marcellus Shale Region,...
Water samples from 50 domestic wells located <1 kilometer (km) (proximal) and >1 km (distal) from shale-gas wells in upland areas of the Marcellus Shale region were analyzed for... -
Geochemical and Geospatial Data for Per- and Polyfluoroalkyl Substances...
Concentrations of inorganic constituents, dissolved organic carbon (DOC), tritium, per- and polyfluoroalkyl substances (PFAS), volatile organic compounds (VOCs), and... -
Geochemical and Geospatial Data for Per- and Polyfluoroalkyl Substances...
Concentrations of inorganic constituents, dissolved organic carbon (DOC), tritium, per- and polyfluoroalkyl substances (PFAS), volatile organic compounds (VOCs), and... -
Data used to evaluate drinking water quality in the glacial aquifer system,...
This data release contains groundwater-quality data and well information for the glacial aquifer system in the northern USA. Water-quality data and well information were derived... -
Datasets from Groundwater-Quality and Select Quality-Control Data from the...
Groundwater-quality data were collected from 648 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program and... -
Geochemical and Geospatial Data for Per- and Polyfluoroalkyl Substances...
Concentrations of inorganic constituents, dissolved organic carbon (DOC), tritium, per- and polyfluoroalkyl substances (PFAS), volatile organic compounds (VOCs), and... -
Data for the occurrence and distribution of strontium in U.S. groundwater
Water-quality data for groundwater samples collected from 4,824 sites, and ancillary data and information on sampled wells and principal aquifers, were used to assess the... -
Data for three-dimensional distribution of groundwater residence time...
Residence time distribution (RTD) is a critically important characteristic of groundwater flow systems; however, it cannot be measured directly. RTD can be inferred from tracer... -
Data for Fluoride Occurrence in United States Groundwater
Data from 38,105 wells were used to characterize fluoride occurrence in untreated United States groundwater. The data were retrieved from the U.S. Geological Survey (USGS)... -
Data for Distribution of Groundwater Age in Aquifers Used for Public Supply...
This data release documents seven tables that contain environmental tracer data and lumped parameter model (LPM) results that are used for assessing the distribution of... -
Data for Radium Mobility and the Age of Groundwater in Public-drinking-water...
High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H,...