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Federal
Great Smoky Mountains National Park Trout Distribution
Department of the Interior —
The brook trout (Salvelinus fontinalis) is the only trout native to the southern Appalachian Mountains. It was once widespread in Great Smoky Mountains National Park... -
Federal
Great Smoky Mountains National Park Aquatic Macroinvertebrates Monitoring Locations
Department of the Interior —
These data depict the locations (only) of all Aquatic Macroinvertebrates Monitoring Locations study sites in the park. Great Smoky Mountains National Park (GRSM)... -
Federal
Per- and polyfluoroalkyl substances (PFAS) and pharmaceutical compound data from passive and sediment samples from 62 Great Lakes tributary sites collected in 2018
Department of the Interior —
This dataset includes per-and polyfluoroalkyl substances (PFAS) and pharmaceuticals monitored at 62 sampling sites in tributaries of the Laurentian Great Lakes.... -
Federal
MODFLOW simulator used to assess groundwater flow for the Whiting Field Naval Air Station, Milton, FL
Department of the Interior —
The study of Whiting Field Naval Air Station, Milton Florida requires numerical modeling of the groundwater system to determine the fate of contaminants released at... -
Federal
Microplastics data collected from streams in the northeastern United States, 2017-2018
Department of the Interior —
These data were collected to characterize the quantity and quality of microplastic particles found in 17 streams in the northeastern United States, from New York to... -
Federal
Estimated Densities of Residential Septic Tanks across the Conterminous United States for 12-digit Hydrologic Unit Code 12 (HUC12), National Hydrography Dataset Plus Version 2 (NHDPlusV2) Catchment, and Block Group Scales
Department of the Interior —
This dataset provides estimates of residential septic tank densities at 12-digit Hydrologic Unit Code (HUC12), National Hydrography Dataset (NHD Plus version 2.1,... -
Federal
St. Petersburg Coastal and Marine Science Center's Geologic Core and Sample Database Metadata
Department of the Interior —
This database contains a comprehensive inventory of geologic (coral, coral reef, limestone, and sediment) cores and samples collected, analyzed, published, and/or... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for basalt and volcanic rocks (gwava-s_vrox)
Department of the Interior —
This data set represents the presence or absence of basalt and volcanic rocks in the conterminous United States. The data set was used as an input data layer for a... -
Federal
Data and Regression Model for Suspended Sediment for Iroquois River near Foresman, Indiana, March 20, 2015 to July 19, 2018
Department of the Interior —
The primary data set consists of continuous water-quality data (temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate plus nitrite, and... -
Federal
Polycyclic aromatic hydrocarbons (PAHs) in the San Lorenzo River, Santa Cruz, California, USA, from 2015 to 2016
Department of the Interior —
Polycyclic aromatic hydrocarbons (PAHs) are reported for water samples collected from the San Lorenzo River water during the rainy seasons from 2015 to 2016. Samples... -
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
Environmental and Quality-Control Data for Per- and Polyfluoroalkyl Substances (PFAS) Measured in Selected Rivers and Streams in Massachusetts, 2020 (ver. 2.0, May 2023)
Department of the Interior —
This data release includes concentrations of 24 per- and polyfluoroalkyl substances (PFAS) and physical properties of water-quality samples collected by the U.S.... -
Federal
Hydrodynamic and Sediment Transport Model Application for OSAT3 Guidance: Ratio of the wave- and current-induced shear stress to the critical value for oil-tar balls and sediment mobilization over a tidal cycle
Department of the Interior —
The U.S. Geological Survey has developed a method for estimating the mobility and potential alongshore transport of heavier-than-water sand and oil agglomerates... -
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
Mercury Source Identification in the Mobile and Tombigbee Rivers
Department of the Interior —
This dataset details mercury concentrations and mercury stable isotope values collected as part of an environmental mercury assessment encompassing the Mobile and... -
Federal
Basin Characteristics Data for the StreamStats Application in the Mystic River Basin, Massachusetts
Department of the Interior —
The U.S. Geological Survey’s StreamStats program is a publicly-accessible web application (https://streamstats.usgs.gov) that can be used to delineate drainage areas,... -
Federal
Daily Loads of Suspended Sediment, Total Nitrogen, and Total Phosphorus Calculated from Instantaneous Regression Model Concentration Estimates from June 23, 2015 through February 6, 2019.
Department of the Interior —
The primary data sets consist of loads (with upper 95-percent prediction interval, and lower 95-percent prediction interval) of suspended sediment, total nitrogen,... -
Federal
Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in shallow, recently recharged ground water -- Input data set for histosols (gwava-s_hist)
Department of the Interior —
This data set represents the amount of histosols soil taxonomic order, in percent, in the conterminous United States. The data set was used as an input data layer for... -
Federal
Analyses of Select Organic and Inorganic Data Collected from Lysimeters Installed at the Bemidji Crude Oil Spill Site, Minnesota, 2018, 2019, 2021
Department of the Interior —
The U.S. Geological Survey (USGS) collected porewater samples from nine suction lysimeters in 2018, 2019, and 2021 for analysis of organic and inorganic constituents... -
Federal
Suspended sediment, total nitrogen, and total phosphorus loads for Iroquois River near Foresman, Indiana, April 2015 to July 2018
Department of the Interior —
This data release contains the calibration data set and R code used to create regression models for estimating daily loads of suspended sediment, total nitrogen, and...