Data

In 2018, the U.S. Geological Survey (USGS), in cooperation with the U.S. Department of Energy, drilled and constructed borehole USGS 147 (USGS Site 432851113001401) near the southern boundary of Idaho National Laboratory (INL) for hydrogeologic data collection and stratigraphic framework analyses. The borehole was continuously cored from approximately 14 to 751 feet below land surface...

The middle reach of the Snake River in south-central Idaho has a long history of water-quality impairment related to excessive total phosphorus (TP) and suspended sediment. Although TP levels appear to have declined since original total maximum daily loads were established in 1997, the Crystal Springs reach stands out with an abundance of macrophyte growth. Previous studies of macrophyte...

This data release provides the full analytical dataset for fourteen new argon‑argon (⁴⁰Ar/³⁹Ar) radiometric ages from olivine tholeiite basalt flows at the Idaho National Laboratory (INL) on the eastern Snake River Plain, Idaho. Samples were collected from basalt flows in eight subsurface coreholes (43–450 ft below land surface) and five surface sites. The release includes machine...

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

This data release contains the TVSWA_Delineator tool, and the associated groundwater-flow and particle-tracking model files used to define source water assessment areas for public water supply wells in the Treasure Valley. It includes a Python-based executable utilizing the FloPy package, specialized MODPATH 7 particle-tracking configurations, and a modified version of the MODFLOW 6...

This data release contains mercury concentration measurements in fish and benthic macroinvertebrates collected from southwestern Idaho and northern Nevada between 2007 and 2024. The dataset primarily includes total mercury (Hg) concentrations in muscle tissue of rainbow trout (Oncorhynchus mykiss)—sampled from three reservoirs on the Duck Valley Reservation (Mountain View Reservoir, Lake...

In September 2025, the U.S. Geological Survey, in cooperation with Idaho Power Company, conducted a pilot geophysical survey along the Snake River between the Boise River confluence and Swan Falls Dam in southwestern Idaho. The purpose of the survey was to evaluate the utility of ground-penetrating radar (GPR) for mapping the spatial distribution and thickness of gravel deposits within...

In the arid Mountain Home region, groundwater serves as the primary water source for agriculture, municipalities, industry, and other users, making its long-term availability a growing concern amid observed declines in aquifer levels . The U.S. Geological Survey, in cooperation with the Idaho Department of Water Resources, developed a water budget for the 2023 irrigation year (November...

Regression models for estimating suspended sediment concentration (SSC) and loads were developed using the R package rloadest for U.S. Geological Survey streamgage Snake River at Weiser, Idaho (13269000). Samples for suspended sediment concentration were collected in two periods: the historical (1977-2003) and modern (2017-22) periods. Data and metadata for all samples collected at this...

The U.S. Geological Survey (USGS), in cooperation with the Nez Perce Tribe, used streamflow measurements at 12 ungaged, partial-record sites and developed relationships with nearby USGS real-time streamgages (index sites) to provide daily mean streamflow values at partial-record sites in the Clearwater River basin. Daily mean streamflow was estimated by developing a regression...

Aquatic reflectance data from Sentinel-2 satellite imagery is paired with continuous water quality measurements across the Delaware, Illinois, Trinity, Upper Colorado, and Willamette River basins in the United States from July 2015 through September 2024. The dataset contains a zipped file (Matched_WQ_S2.zip) containing two csvs of matched continuous colored dissolved organic matter...

In 2019, the U.S. Geological Survey (USGS) Research Drilling Program, based in Nevada, subcontracted with WOOD PLC to drill and construct borehole USGS 150 (USGS site 433521112581801). The borehole was continuously cored from approximately 18.3 to 1399 feet below land surface, with the primary objective of gathering geological, geophysical, and seismic data to enhance models for...