1,906 datasets found
-
Federal
Water Quality Data
Department of the Interior —
Water quality data for the Refuge collected by volunteers collected once every two weeks: Turbidity, pH, Dissolved oxygen (DO), Salinity & Temperature. Sampling... -
Federal
National Hydrography Dataset Plus - NHDPlus
U.S. Environmental Protection Agency —
This high-level metadata data document will be supplemented with detailed regional metadata at a later date. The NHDPlusV2 is an integrated suite of application-ready... -
Federal
Invasive Crabs Inventory at Assateague Island National Seashore - Open Format Dataset
Department of the Interior —
An invasive crab inventory survey was performed to document the abundance and spatial distribution of the European green crab (Carcinus maenas) and the Japanese shore... -
City
Water Quality Sampling Data
City of Austin —
Data collected to assess water quality conditions in the natural creeks, aquifers and lakes in the Austin area. This is raw data, provided directly from our Water... -
Federal
Estimates of lake nitrogen, phosphorus, and chlorophyll-a concentrations to characterize harmful algal bloom risk across the United States
U.S. Environmental Protection Agency —
The objective of this research was to predict nutrient, chlorophyll-a, and associated harmful algal bloom, hypoxia, and eutrophication effects in US lakes. This... -
Federal
USGS Water-Quality Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the... -
County
USGS Blue Line Streams
Wake County —
Blue-line stream means that a stream appears as a broken or solid blue line (or a purple line) on a USGS topographic map. Definition from NCDENR Water Resources... -
Federal
Concentrations of Per- and Polyfluoroalkyl Substances (PFAS) and Other Chemical Constituents for Groundwater and Surface Water Samples on Western Cape Cod, Massachusetts, 2014-2019 (ver. 1.1, November 2025)
Department of the Interior —
Groundwater, surface water, and associated quality assurance samples were collected downgradient of an abandoned fire training area and wastewater infiltration beds... -
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
Yellowstone National Park Small-Scale Base GIS Data
Department of the Interior —
This data set contains small-scale base GIS data layers compiled by the National Park Service Servicewide Inventory and Monitoring Program and Water Resources... -
Federal
USGS Water Data for the Nation
Department of Energy —
The U.S. Geological Survey maintains national data bases of water-use information. The data are collected and compiled every five years for each State, the District... -
Federal
1987-2018 cyanobacteria and water quality data for 20 reservoirs
U.S. Environmental Protection Agency —
These data include cyanobacteria cell densities (including maximum cell densities observed for each year in each reservoir), annual summer (June-August)... -
Federal
Effects of an annular solar eclipse on montane stream water quality in New Mexico, USA.
Department of the Interior —
Weather data files and stream water quality data files during the annular solar eclipse (Oct. 13-16, 2023) from seven (7) Remote Automatic Weather Stations (RAWS) and... -
Federal
Grand Teton National Park Escherichia coli (E. coli) Sampling and Monitoring Data from 2012-2025 as of 2026-03-17
Department of the Interior —
This data package was created 2026-03-17 13:03:27 by NPSTORET and includes selected project, location, and result data. Data contained in the Grand Teton National... -
Federal
Census Tract EQI
U.S. Environmental Protection Agency —
The Environmental Quality Index (EQI) accounts for the multiple domains of the environment with which humans interact. These domains include chemical, natural, built,... -
Federal
Estimated annual agricultural pesticide use by major crop or crop group for states of the conterminous United States, 1992-2019 (including preliminary estimates for 2018-19)
Department of the Interior —
This data release provides state-level estimates of annual agricultural use of pesticide compounds by major crop or crop group for states in the conterminous United... -
Federal
BLM Natl AIM Riparian and Wetland Indicators Hub
Department of the Interior —
This feature class includes monitoring data collected nationally to understand the status, condition, and trend of resources on BLM lands. Data are collected in... -
Federal
Cape Cod National Seashore Long-Term Hydrologic Monitoring Data from CACOHYDRO Project from 1999-2025 as of 2026-03-20
Department of the Interior —
This data package was created 2026-03-20 15:53:59 by NPSTORET and includes selected project, location, and result data. Data contained in the Cape Cod National... -
Federal
Gulf Coast Network 1976-2025 Water Quality Data from Ten Park Projects as of 2026-02-10
Department of the Interior —
This data package was created 2026-02-10 10:38:31 by NPSTORET and includes selected project, location, and result data. Data contained in the Gulf Coast Network... -
Permeable Surface Rebate Eligibility Zone
District of Columbia —
District homeowners who remove impervious surfaces and replace them with permeable pavement or re-vegetate them to reduce and/or treat stormwater runoff from...
1,906 datasets found