-
Federal
Predictions of PFAS Occurrence in Groundwater at the Depth of Drinking Water Supplies in the Conterminous United States: Data and Model Archive
Department of the Interior —
An extreme gradient boosting ensemble tree model predicting per- and polyfluoroalkyl substances (PFAS) occurrence in groundwater at the depths typical of the bottom... -
Federal
Geochemical and Geospatial Data for Per- and Polyfluoroalkyl Substances (PFAS) in Groundwater Used as a Source of Drinking Water in the Eastern United States
Department of the Interior —
Concentrations of inorganic constituents, dissolved organic carbon (DOC), tritium, per- and polyfluoroalkyl substances (PFAS), volatile organic compounds (VOCs), and... -
Federal
Select Groundwater-Quality and Quality-Control Data from the National Water-Quality Assessment Project 2019 to Present (ver. 4.0, April 2025)
Department of the Interior —
Groundwater samples were collected and analyzed from 1,015 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National... -
Federal
Volatile organic compounds in passive soil gas, indoor air, and groundwater samples at the Triangle Chemical Company Superfund Site, Orange County, Texas, 2021–2023
Department of the Interior —
The Triangle Chemical Company Superfund site, in Orange County, Texas, was a chemical mixing and blending facility in the 1970s. According to the Environmental... -
Federal
Environmental Sampling and Modeling Results to Characterize Surface-Water Quality at 32 Sites Across the Potomac River Watershed, 2022 (ver. 3.0, April 2025)
Department of the Interior —
This data release presents chemical results from investigations of surface-water quality in the Potomac River watershed (encompassing Washington, D.C. and parts of... -
Federal
Study Boundary and Grid Cells for the Yuba and Bear Watersheds Shallow Aquifer Study Unit
Department of the Interior —
The U.S. Geological Survey collected groundwater samples from 71 domestic wells and 4 springs in Nevada, Yuba, Sierra, and Placer Counties, California in 2015-2016.... -
Federal
Geochemistry Data
Department of the Interior —
The Wilcox Oil Company Superfund site (hereinafter referred to as “the site”) was formerly an oil refinery in northeast of Bristow in Creek County, Oklahoma.... -
Federal
Groundwater Quality Data from the Delaware, Genesee, and St. Lawrence River Basins, New York, 2020
Department of the Interior —
This data release contains analytical results from 52 groundwater samples and six quality assurance and quality control samples collected from the Delaware, Genesee,... -
Federal
Combined Resistivity and Sand Dominant Group Data
Department of the Interior —
The Wilcox Oil Company Superfund site (hereinafter referred to as “the site”) was formerly an oil refinery in northeast of Bristow in Creek County, Oklahoma.... -
Federal
Volatile organic compound and biogeochemical parameter concentrations from samples collected in porewater, groundwater, and rock matrix, Fort Detrick, Frederick, Maryland, 2018-2020
Department of the Interior —
This metadata record contains 14 tables of biogeochemical data collected to evaluate the fate and transport of chlorinated ethenes in Area B groundwater, Fort... -
Federal
Groundwater-quality data in the Butte-Sutter-Yuba Domestic-Supply Aquifer Study Unit, 2021: Results from the California GAMA Priority Basin Project
Department of the Interior —
The U.S. Geological Survey collected groundwater samples from 38 wells used for domestic and small system drinking water supplies in Butte, Sutter, and Yuba counties... -
Federal
Concentrations of 1,4-Dioxane, Per- and Polyfluorinated Substances (PFAS), Chlorofluorocarbons (CFCs), Methyl Tert-Butyl Ether (MTBE), and Trihalomethanes (THMs) in Groundwater, Nassau County, New York, 2019-2022
Department of the Interior —
This data release contains 1-4 dioxane, per- and polyfluoroalkyl substances (PFAS), chlorofluorocarbons (CFCs), methyl tert-butyl ether (MTBE), and trihalomethanes... -
Federal
Quality-control equipment blanks, field blanks, and field replicates for baseline surface-water quality of an area undergoing shale-gas development in the Muskingum River watershed, Ohio, 2015-16.
Department of the Interior —
In 2015-16, the U.S. Geological Survey (USGS), in cooperation with the Muskingum Watershed Conservancy District, conducted a study to assess baseline (2015-16)... -
Federal
Concentrations of chlorinated volatile organic compounds and per- and polyfluoroalkyl substances in groundwater and surface water, former Naval Air Warfare Center, West Trenton, New Jersey
Department of the Interior —
This dataset contains a compilation of concentrations of chlorinated volatile organic compounds (VOCs) and per- and polyfluoroalkyl substances (PFAS) in groundwater... -
Federal
Water chemistry data for samples collected at groundwater sites near the Oxnard oil field, June 2017–August 2017, Ventura County, California
Department of the Interior —
In cooperation with the California State Water Resources Control Board’s oil and gas Regional Monitoring Program, the U.S. Geological Survey collected and analyzed... -
Federal
Quality-Control Data for Volatile Organic Compounds and Environmental Sulfur-Hexafluoride Data for Groundwater Samples from the Williston Basin, USA
Department of the Interior —
In 2018, groundwater samples were collected from aquifers in the Williston Basin in parts of eastern Montana, western North Dakota, and northwestern South Dakota.... -
Federal
Laboratory results for anthropogenic bioactive chemicals in the Illinois Waterway upstream and downstream of the bigheaded carp population front (2015; ver. 2.0, February 2020) Edition 2.0
Department of the Interior —
Two non-native bigheaded carp species have invaded the Illinois River system and are a potential threat to the Great Lakes ecosystem. Discharges from industry,... -
Federal
Groundwater-quality data in the Mokelumne, Cosumnes, and American River Watersheds Shallow Aquifer Study Unit, 2016-2017: Results from the California GAMA Priority Basin Project
Department of the Interior —
The U.S. Geological Survey collected groundwater samples from 67 wells and 1 spring used for domestic and small system drinking water supplies in Placer, El Dorado,... -
Federal
MODFLOW-NWT and MODPATH6 model use to analyze remedial scenarios affecting plume movement through a sole-source aquifer system, southeastern Nassau County, New York
Department of the Interior —
A three-dimensional steady-state groundwater flow model is coupled with the particle-tracking program, MODPATH, to assess the fate and transport of volatile organic... -
Federal
Selected borehole geophysical logs from three contaminated sites in California, Wisconsin, and New Jersey
Department of the Interior —
Borehole geophysical logs were collected to characterize bedrock aquifers at three contamination sites located in California, Wisconsin, and New Jersey. The data were...