Data

These data are comprised of measurements of elements (e.g., uranium, cobalt, nickel, copper, zinc, cadmium, lead, etc.), major anions (chloride, nitrite+nitrate as nitrogen, sulfate, etc.), organic carbon, and general water quality parameters measured in Pinyon Plain Mine containment pond water, sediment, vegetation, and aquatic invertebrate samples collected in calendar year 2025.

This data release includes the 16S whole-organism sequencing data for larval aquatic insects, emergent adult insects, and two riparian spiders from upstream and downstream sites of a PFAS (per- and polyfluoroalkyl substances) source (treated industrial wastewater). Data are published on NCBI SRA database under bioproject number PRJNA1257314, Biosample accession numbers SAMN48245356 -...

This data release contains the concentration and quality assurance results for 29 streams, sampled twice, and 1 stream, sampled once, in the Chesapeake Bay Delmarva row crop region (Maryland and Delaware, USA) for the following constituent classes (count of constituents); field and water-quality parameters (9), nutrients/anions (13), dissolved organic carbon (1), per- and polyfluoroalkyl

Rainfall data from 23 weather stations in Florida, sourced from the South Florida Water Management District (SFWMD), Northwest Florida Water Management District (NWFWMD), Global Historical Climatology Network-Hourly (GHCNh), and Remote Automatic Weather Stations (RAWS), were used to examine temporal trends over the period 1990–2022 of events with durations of 1, 2, 3, 6, 12, and 24 hours...

This dataset contains vertical water-quality profiles of the Hudson River collected over two field seasons from May through October 2023 and May through September 2024. Data were collected at 27 equidistant transects along the lower Hudson River from Troy to Riverdale, NY using a stratified random sampling design. Each month, a single sampling location was randomly selected along each...

This data release contains field measurements and discrete surface water sample results for parameters related to the assessment of harmful algal blooms. Field measurements include fluorescent chlorophyll, phycocyanin fluorescence, and photosynthetically active radiation (PAR). Discrete water samples were analyzed for extracted chlorophyll-a and pheophytin-a concentrations, total...

This dataset includes photos taken in the field (Final_photos_for_data_release.zip) and a shapefile (Blackhollow_de.shp stored in Blackhollow_de.zip) to document debris flow activity in the Black Hollow watershed. The Black Hollow watershed was burned by the Cameron Peak Fire (13 August to 2 December 2020) and experienced a debris flow on 20 July 2021. The polygon shapefile in this...

Repeat topographic and bathymetric surveys were performed by the U.S. Geological Survey along Humboldt Bay North Spit and South Spit within the Eureka littoral cell in northern California. The surveys were used to characterize changes in coastal morphology and sand volume within an area that extends approximately 12 km north and 8 km south of the Humboldt Bay inlet. Bathymetric and...

Approximately 3 to 4 kg of NBS 19 limestone, prepared in 1982 by the U.S. Geological Survey (USGS), serves as a primary reference for the carbon isotope scales VPDB and VPDB-LSVEC and the oxygen isotope scale VPDB. Its consensus values are +1.95 ‰ for δ¹³C and –2.2 ‰ for δ¹⁸O measurements. After more than three decades of distribution, the number of units labeled “NBS 19” shrunk...

Several basin characteristics are computed for gaged watersheds within and near the Upper Mississippi and Souris-Red-Rainy river basins, so that the basin characteristics may be tested for significance in predicting regional skew of peak flow. Basin characteristics were computed using the USGS StreamStats applications for Iowa, Illinois, Indiana, Kansas, Minnesota, Missouri, North Dakota...

This data release includes information on data from 72 streamflow or surface-water presence datasets in the Conterminous United States. It includes location, dataset, parent dataset or publication, site identification (if available), start year, end year, number of years, number of days, frequency of data collection, Strahler stream order, and headwater status.

This data release provides a variety of water quality benchmarks, compiled from multiple publications and attributed to the NHDPlus v2.1 hydrography, for the conterminous United States (CONUS) for use in integrated water availability studies for evaluating altered water conditions and potential ecological impacts. To avoid ambiguity in terms, for the purpose of this data release, we use...