Found 20 datasets matching "WQP".
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The Water Quality Portal (WQP) is a cooperative service sponsored by the United States Geological Survey (USGS), the Environmental Protection Agency (EPA), and the National Water Quality...
Search relevance: 67.88 | Views last month: 4 -
These are data stored on the EPA GeoPlatform based on ArcGis (ESRI). They are in the form ArcGis tables or Excel files. This "Predicted Background Conductivity" view consists of a shapefile...
Search relevance: 46.98 | Views last month: 0 -
Jointly managed by multiple states and the federal government, there are many ongoing efforts to characterize and understand water quality in the Delaware River Basin (DRB). Many State, Federal...
Search relevance: 46.86 | Views last month: 0 -
This data release collates stream water temperature observations across the Chesapeake Bay watershed from the USGS National Water Information System (NWIS), Water Quality Portal (WQP) and the USGS...
Search relevance: 42.66 | Views last month: 0 -
The Water Quality Portal (WQP) is the premiere source of discrete water-quality data in the United States and beyond. This cooperative service integrates publicly available water-quality data from...
Search relevance: 40.55 | Views last month: 0 -
This data release contains total dissolved solids (TDS) concentrations and specific conductance (SC) measurements collected at surface-water monitoring locations and groundwater monitoring wells...
Search relevance: 37.85 | Views last month: 0 -
This data release contains data in support of "Diverging trends in Nitrate and Phosphorus Loads and Yields Across Illinois Watersheds, 1997–2022" (Kamrath and others, 2025). It contains input and...
Search relevance: 37.63 | Views last month: 0 -
This data release collates stream water temperature observations from across the United States from four data sources: The U.S. Geological Survey's National Water Information System (NWIS), ...
Search relevance: 35.34 | Views last month: 2 -
This dataset, “AquaMatch Chlorophyll a Data from Water Quality Portal ~1970-2024”, is a component of a forthcoming update to AquaSat (Ross et al., 2019), AquaSat version 2 (“v2”). The overarching...
Search relevance: 34.63 | Views last month: 0 -
The U.S. Geological Survey (USGS), in cooperation with the Grand Valley Drainage District and the Colorado Water Conservation Board, conducted a loading analysis for selected constituents and...
Search relevance: 34.11 | Views last month: 0 -
This dataset, “AquaMatch Dissolved Organic Carbon Data from Water Quality Portal ~1970-2024”, is a component of a forthcoming update to AquaSat (Ross et al., 2019), AquaSat version 2 (“V2”). The...
Search relevance: 31.40 | Views last month: 0 -
These datasets contain all publicly available analytical data collected by the U.S. Geological Survey (USGS) by the Pennsylvania Pesticides in Vulnerable Groundwaters program between 2021 and...
Search relevance: 31.26 | Views last month: 0 -
Freshwater salinization is an emerging issue for freshwater environments in the Chesapeake Bay, USA region. Salinization is often described by measurements of specific conductance (SC). This data...
Search relevance: 31.22 | Views last month: 3 -
The release of elements of concern (EoC) to surface water can involve both natural and anthropogenic sources. Elevated EoC concentrations can pose a risk to human health, wildlife, and ecosystem...
Search relevance: 29.74 | Views last month: 2 -
The datasets provided here are the input data used to run the Seasonal Kendall Trend (SKT) tests and Weighted Regressions on Time, Discharge, and Season (WRTDS) models. SKT tests use...
Search relevance: 28.14 | Views last month: 0 -
This data release contains discrete chlorophyll data, specifically corrected chlorophyll a, uncorrected chlorophyll a, and pheophytin pigments, from inland waters in the Illinois River Basin for...
Search relevance: 26.73 | Views last month: 0 -
Water quality is a critical consideration in determining the beneficial uses of these waters. Water clarity has long been used by aquatic monitoring programs as a visual indicator of the condition...
Search relevance: 25.55 | Views last month: 1 -
<p>This data release contains a 17-year record (2005-2022) of discrete chlorophyll data from inland waters, collected from across the nation and territories. These data are from discrete samples...
Search relevance: 18.02 | Views last month: 0 -
This data release provides water-quality trends for rivers and streams in the Delaware River Basin determined using the Weighted Regressions on Time, Discharge, and Season (WRTDS) model and the...
Search relevance: 15.11 | Views last month: 0 -
The U.S. Geological Survey (USGS) Water Resources Mission Area (WMA) is working to address a need to understand where the Nation is experiencing water shortages or surpluses relative to the demand...
Search relevance: 13.56 | Views last month: 0
