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Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the presence or absence of semiconsolidated sand aquifers in the conterminous United States. The data set was used as an input data layer for a national... -
Raster dataset showing the probability of elevated concentrations of nitrate...
This dataset is one of eight datasets produced by this study. Four of the datasets predict the probability of detecting atrazine and(or) desethyl-atrazine (a breakdown product... -
Discrete Carbonate System Parameter Measurements in Tampa Bay, Florida, USA
This dataset contains carbonate system data collected by scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center to investigate the... -
URI Greenwich Bay, RI Corrected Suna Nitrate Data
Dock station consisting of a SUNA (Submersible Ultraviolet Nitrate Analyzer) deployed ~1.0m from the surface. Funding agency is RIDEM_OWR and data quality control follow... -
Continuous monitoring and discrete water-quality data from groundwater wells...
In cooperation with the San Antonio Water System, continuous and discrete water-quality data were collected from groundwater wells completed in the Edwards aquifer, Texas,... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the area of National Resources Inventory irrigation system, tailwater recovery conservation practice, in square kilometers, in the conterminous United... -
Raster dataset showing the probability of detecting...
This dataset is one of eight datasets produced by this study. Four of the datasets predict the probability of detecting atrazine and(or) desethyl-atrazine (a breakdown product... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the presence or absence of poorly sorted glacial till east of the Rocky Mountains in the conterminous United States. The data set was used as an input... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents infiltration excess overland flow estimated by TOPMODEL, in percent of streamflow, in the conterminous United States. The data set was used as an input... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the presence or absence of poorly sorted glacial till east of the Rocky Mountains in the conterminous United States. The data set was used as an input... -
Water-quality trends for rivers and streams in the Delaware River Basin...
The datasets provided here are the output from the Seasonal Kendall Trend (SKT) test and Weighted Regressions on Time, Discharge, and Season (WRTDS) model that characterize... -
Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of...
This data set represents National Atmospheric Deposition Program (NADP) National Trends Network average of annual precipitation-weighted mean atmospheric deposition for seven... -
URI Greenwich Bay, SUNA
Northeastern Regional Association Ocean Observing Systems (NERACOOS) Dock station consisting of a SUNA (Submersible Ultraviolet Nitrate Analyzer) deployed 1.0m from the surface.... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the average annual nitrogen input from commercial fertilizer applied to agricultural lands, 1992-2001, in kilograms per hectare, in the conterminous... -
Seasonal and spatial variation in the location and reactivity of a...
The U.S. Geological Survey Toxic Substances Hydrology Program at Cape Cod has been investigating the fate and transport of a treated-wastewater, groundwater contaminant plume. A... -
Vulnerability of shallow ground water and drinking-water wells to nitrate in...
This data set represents the percent of orchards/vineyards land cover in the conterminous United States. The data set was used as an input data layer for a national model to... -
Modeled nutrient and sediment concentrations from major rivers in Illinois...
During water years 2016–2020, the U.S. Geological Survey, in cooperation with the Illinois Environmental Protection Agency, operated continuous monitoring stations on eight of... -
Natural gradient, lakebed tracer tests using nitrite in a...
The U.S. Geological Survey Toxic Substances Hydrology Program at Cape Cod has been investigating the fate and transport of a treated-wastewater, groundwater contaminant plume. A... -
Groundwater nitrate data and ascii grids of predicted nitrate and model...
This public data release contains two ascii grids comprising predicted nitrate concentrations (as NO3-N, mg/L) at two depth zones associated with private and public drinking... -
Continuous monitoring and discrete water-quality data from groundwater wells...
In cooperation with the San Antonio Water System, continuous and discrete water-quality data were collected from groundwater wells completed in the Edwards aquifer, Texas,...