Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Campaign microgravity data from Yellowstone Caldera, Wyoming Campaign microgravity data from Yellowstone Caldera, Wyoming
A campaign microgravity network was established at Yellowstone Caldera, Wyoming, in 2017 as a subset of stations that were initially measured in 1977. The network has been measured subsequently on a quasi-annual basis to assess changes in gravity over time that may be related to subsurface magmatic or hydrothermal processes. This data release includes microgravity data collected by the U...
Solid/Water Partitioning of Per- and Polyfluoroalkyl Substances (PFAS) in New Hampshire Soils and Biosolids: Results from Laboratory Experiments at the U.S. Geological Survey Solid/Water Partitioning of Per- and Polyfluoroalkyl Substances (PFAS) in New Hampshire Soils and Biosolids: Results from Laboratory Experiments at the U.S. Geological Survey
Data from a laboratory study undertaken at the U.S. Geological Survey to investigate solid/water partitioning of per- and polyfluoroalkyl substances (PFAS) in New Hampshire soils and biosolids are presented here. Soils and biosolids used for the experiments were collected using PFAS-free sampling equipment, air dried, gently homogenized, and sieved (soils only). Soil samples were...
Data and model archive for shallow soil PFAS predictions in Maine, New Hampshire, and Vermont, 2026 Data and model archive for shallow soil PFAS predictions in Maine, New Hampshire, and Vermont, 2026
Anthropogenic background concentrations of per- and polyfluoroalkyl substances (PFAS) in shallow soils (zero to six inches in depth) across Maine, New Hampshire, and Vermont are compiled in this data release, together with a summary table of soil PFAS method detection limits. New Hampshire samples were collected in 2021 (Santangelo and others, 2022), Vermont samples were collected in...
Per- and Polyfluoroalkyl Substances (PFAS) in Tapwater From Private Wells in Clinton County, Iowa, and Whiteside County, Illinois, 2024 Per- and Polyfluoroalkyl Substances (PFAS) in Tapwater From Private Wells in Clinton County, Iowa, and Whiteside County, Illinois, 2024
Between June 2024 and December 2024, tapwater samples were collected from 48 homes that use private well water as their drinking water source. All homes were located within a 50-kilometer radius of the 3M Cordova Facility in Cordova, Illinois, and analyzed for per- and polyfluoroalkyl substances (PFAS). The sampling effort was undertaken by the University of Iowa and samples were sent to...
Seasonal and Annual Trends in Dynamic SPARROW Predictions of Nitrogen and Phosphorus in Streams of the Conterminous United States, December 1999 through November 2020 Seasonal and Annual Trends in Dynamic SPARROW Predictions of Nitrogen and Phosphorus in Streams of the Conterminous United States, December 1999 through November 2020
Annual and seasonal trends in nitrogen and phosphorus loads, mean concentrations (flow-weighted loads), mean yields (area-weighted loads), and possible related stresses on aquatic ecology were estimated for the period December 1999 through November 2020 for each of 261,247 individual stream reaches and 81,717 12-digit hydrologic units (HUC12s) in the conterminous United States (CONUS)...
Surface Nuclear Magnetic Resonance and Time-Domain Electromagnetic data in the Camas Prairie near Fairfield, south-central Idaho Surface Nuclear Magnetic Resonance and Time-Domain Electromagnetic data in the Camas Prairie near Fairfield, south-central Idaho
In cooperation with the Idaho Department of Water Resources (IDWR), the U.S. Geological Survey, (USGS), collected surface nuclear magnetic resonance (sNMR) and time-domain electromagnetic (TDEM) surveys at eight sites located in the Camas Prairie, Idaho between July 30 and August 2, 2024. The data were acquired to characterize the subsurface and define hydraulic properties of the shallow
Intake Efficiency Testing Data for the US XPD-24-200 Isokinetic Suspended-Sediment and Water-Quality Collapsible-Bag Sampler Intake Efficiency Testing Data for the US XPD-24-200 Isokinetic Suspended-Sediment and Water-Quality Collapsible-Bag Sampler
This data release documents performance testing of an experimental suspended‑sediment and water‑quality collapsible‑bag sampler with point‑ or depth‑integrating capabilities, the US XPD‑24‑200. Water samples were collected at known velocities in a controlled tow‑tank environment and during lake tows using multiple sampler‑nozzle sizes. For each test, tow velocity, sample volume, and...
Early life coregonines collected from Lake Superior in 2019-2021 genotyped with GT-seq and the references used for genetic assignment Early life coregonines collected from Lake Superior in 2019-2021 genotyped with GT-seq and the references used for genetic assignment
This data release contains sample information for a project using genotyping-in-thousands by sequencing (GT-seq) to identify to species early life coregonine fishes that were collected by the U.S. Geological Survey from Lake Superior in 2019-2021. Sample data are provided for both the larval and age-1 coregonines that underwent genetic identification and the reference fishes collected...
Sample information for fishes in the Coregonus artedi species complex that have been genotyped with restriction site-associated DNA (RAD) sequencing Sample information for fishes in the Coregonus artedi species complex that have been genotyped with restriction site-associated DNA (RAD) sequencing
This data release contains sample information for Coregonus artedi, Coregonus hoyi, Coregonus kiyi, and Coregonus zenithicus collected from Lake Nipigon and the Laurentian Great Lakes that have been genotyped with restriction site-associated DNA sequencing (RAD-seq) for population genetic analysis. Sample information includes: the National Center for Biotechnology Institute BioProject...
6PPD-Quinone Concentrations During Stormwater Runoff at Four New York and Pennsylvania River Sites, 2025–2026 6PPD-Quinone Concentrations During Stormwater Runoff at Four New York and Pennsylvania River Sites, 2025–2026
This data release contains 6PPD-quinone (6PPDQ, 2-anilo-5-[(4-methylpentan-2- yl)amino]cyclohexa-2,5-diene-1,4-dione) concentration data from 14 water samples collected from four stream locations in New York and Pennsylvania. Samples were collected from 2025 to 2026 during storm runoff events (n = 3 - 4 per site), with detected concentrations ranging from 0.29 to 36.49 ng/L. Four samples...
National Shoreline Change—A GIS compilation of vector shorelines and associated shoreline change data from the 1800s to the 2020s for the coast of Alabama National Shoreline Change—A GIS compilation of vector shorelines and associated shoreline change data from the 1800s to the 2020s for the coast of Alabama
The U.S. Geological Survey (USGS) maintains shoreline positions for the United States coasts from various historical sources, such as aerial photographs or topographic surveys, and contemporary sources, such as lidar-point clouds and digital elevation models. Shorelines are compiled in a GIS and analyzed in the USGS Digital Shoreline Analysis System (DSAS) software to calculate rates of...
Surface-water-quality data collected in mountaintop mining areas of West Virginia and Kentucky in 2023 Surface-water-quality data collected in mountaintop mining areas of West Virginia and Kentucky in 2023
In 2023, the U.S. Geological Survey conducted a reconnaissance survey of surface-water quality in areas of southern West Virginia and eastern Kentucky that have ongoing and/or historic mountaintop removal mining for coal resources. The water-quality data collected during the survey are collated in this data release.