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Found 872 dataset(s) matching "water-quality data".
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In 2013, the Regional Stream Quality Assessment (RSQA) study was started as part of the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project. One of the objectives of...
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The U.S. Geological Survey (USGS), in cooperation with the York County Planning Commission and York County Conservation District, has collected discrete stream samples for analysis of...
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This data release includes three sets of data collected for a farm- and field-focused phosphorus reduction study in south-central, Wisconsin, USA. Paired samples collected in the control and...
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NASS USDA estimates the irrigated croplands at county level every five years. But this estimation does not provide the geospatial information of the irrigated croplands. To provide a...
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Water samples were collected in Bellingham Bay, Washington, USA on 14 days from July 30, 2019, to April 15, 2021. The water samples were collected from a small vessel near pre-established USGS...
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Water samples were collected in south San Francisco Bay between August 2023 and August 2024 to measure suspended sediment concentration. The water samples were collected near USGS instrument...
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This dataset provides groundwater ages estimates that were used in an assessment of the penetration depth of modern groundwater in the Central Valley aquifer system (CVAL). Groundwater ages were...
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Water samples were collected in San Pablo Bay, Corte Madera Bay, and a tidal creek in Corte Madera Marsh between April 2022 and June 2023 to measure suspended-sediment concentrations and percent...
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The U.S. Geological Survey (USGS) in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 investigated the occurrence of per- and polyfluoroalkyl substances (PFAS) in...
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Groundwater chemistry data used for assessing the lead (Pb) solubility potential of untreated groundwater of the United States were compiled from the USGS National Water Information System (NWIS)...
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A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United States. These regions...
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A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United States. These regions...
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This dataset is a file of contour lines representing the estimated altitude of the water table in western Sarpy County. This dataset was developed as part of a cooperative study between the...
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This dataset is a shapefile of contours representing the estimated altitude of the top of the Pennsylvanian-age units in western Sarpy County. This dataset was developed as part of a cooperative...
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This dataset is a raster representing the estimated altitude of the top of the Pennsylvanian-age units in western Sarpy County. This dataset was developed as part of a cooperative study between...
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This dataset is a raster representing the estimated altitude of the top of the Dakota Sandstone in western Sarpy County. This dataset was developed as part of a cooperative study between the...
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The U.S. Geological Survey (USGS), in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 investigated the concentrations of per- and polyfluoroalkyl substances (PFAS)...
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The city of Santa Barbara, in cooperation with the U.S. Geological Survey (USGS) California Water Science Center, developed a three-dimensional density-dependent groundwater-flow and...
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This dataset is a shapefile of contours representing the estimated altitude of the top of the Dakota Sandstone in western Sarpy County. This dataset was developed as part of a cooperative study...
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Pesticides in polar organic chemical integrative samplers (POCIS) for 97 Midwest U.S. streams, 2013.
In 2013, the U.S. Geological Survey and the U.S. Environmental Protection Agency characterized water-quality stressors and ecological conditions in 100 wadeable streams across the Midwestern...
