Catalog - Data.gov

Eutrophication water-quality models and supporting water-quality and phosphorus load data used to simulate changes in the water quality of the Winnebago Pool Lakes, Wisconsin, in response to change in phosphorus loading

Organization: Department of the Interior
Updated: 20200827 | Harvested: July 18, 2025 at 02:56 AM

Three eutrophication models (mass balance, BATHUB, and Jensen models) were developed and calibrated for the Winnebago Pools, Wisconsin. These models were used to quantify the input of phosphorus...

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National Water-Quality Assessment Project replicate surface water and groundwater pesticide data analyzed by the USGS National Water Quality Laboratory schedule 2437, Water Years 2013-15.

Organization: Department of the Interior
Updated: 20200826 | Harvested: July 18, 2025 at 04:50 AM

Replicate water-quality samples are collected and prepared in the field and analyzed in the laboratory in identical ways so that they are considered to be the same in composition and analysis...

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Data tables supporting analysis of general water-quality conditions, long-term trends, and network analysis at selected sites within the Missouri Ambient Water-Quality Monitoring Network, water years 1993–2017

Organization: Department of the Interior
Updated: 20210817 | Harvested: July 16, 2025 at 02:40 PM

The U.S. Geological Survey (USGS), in cooperation with the Missouri Department of Natural Resources (MDNR), collects data pertaining to the surface-water resources of Missouri. These data are...

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Ground Water Classifications Polygon

Organization: State of Connecticut
Updated: 2021-06-10 | Harvested: June 27, 2025 at 03:14 PM

<div><a href='https://cteco.uconn.edu/guides/Water_Quality_Class.htm' rel='nofollow ugc' target='_blank'>See full Data Guide here.</a><br /></div>Ground Water Classifications Polygon: Ground...

Surface Water Quality Polygon

Organization: State of Connecticut
Updated: 2019-10-29 | Harvested: June 27, 2025 at 03:30 PM

<div><a href='https://cteco.uconn.edu/guides/Water_Quality_Class.htm' rel='nofollow ugc' target='_blank'>See full Data Guide here. </a><br /></div>Surface Water Quality Classifications Set: This...

Water Quality Portal

Organization: Department of Agriculture
Updated: 2024-02-13 | Harvested: June 24, 2025 at 07:37 PM

<p>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...

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Supporting data for analysis of general water-quality conditions, long-term trends, and network analysis at selected sites within the Missouri Ambient Water-Quality Monitoring Network, water years 1993–2017

Organization: Department of the Interior
Updated: 20210817 | Harvested: July 16, 2025 at 02:40 PM

The U.S. Geological Survey (USGS), in cooperation with the Missouri Department of Natural Resources (MDNR), collects data pertaining to the surface-water resources of Missouri. These data are...

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Field blank and field replicate datasets for inorganic and organic compounds collected for the National Water Quality Network, water years 2013-17

Organization: Department of the Interior
Updated: 20200825 | Harvested: July 17, 2025 at 07:10 PM

The U.S. Geological Survey (USGS) National Water Quality Network - Rivers and Streams (NWQN) comprises 117 surface-water monitoring sites designed to track ambient water-quality conditions across...

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Graphics supporting analysis of general water-quality conditions, long-term trends, and network analysis at selected sites within the Missouri Ambient Water-Quality Monitoring Network 1993–2017

Organization: Department of the Interior
Updated: 20210817 | Harvested: July 16, 2025 at 02:44 PM

The U.S. Geological Survey (USGS), in cooperation with the Missouri Department of Natural Resources (MDNR), collects data pertaining to the surface-water resources of Missouri. These data are...

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Select Groundwater-Quality and Quality-Control Data from the National Water-Quality Assessment Project 2019 to Present (ver. 4.0, April 2025)

Organization: Department of the Interior
Updated: 20250429 | Harvested: September 05, 2025 at 08:19 PM

Groundwater samples were collected and analyzed from 1,015 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality Program and the...

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Surface Water Quality Classifications Set

Organization: State of Connecticut
Updated: 2023-07-03 | Harvested: June 27, 2025 at 02:47 PM

<div><a href='https://cteco.uconn.edu/guides/Water_Quality_Class.htm' rel='nofollow ugc' target='_blank'>See full Data Guide here. </a><br /></div>Surface Water Quality Classifications Set: This...

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Field, laboratory, and third-party data for assessment of the quality of pesticide results reported by the National Water Quality Laboratory for groundwater samples collected by the National Water-Quality Assessment Project, 2013-18

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 17, 2025 at 08:35 PM

This data release includes tables and plots of results for pesticide compounds (pesticides and degradates) analyzed in groundwater samples collected by the USGS National Water-Quality Assessment...

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Surface Water Quality Lines

Organization: State of Connecticut
Updated: 2019-10-29 | Harvested: June 27, 2025 at 02:24 PM

<div><a href='https://cteco.uconn.edu/guides/Water_Quality_Class.htm' rel='nofollow ugc' target='_blank'>See full Data Guide here. </a><br /></div>Surface Water Quality Classifications Set: This...

Recovery data for surface water, groundwater and lab reagent samples analyzed by the USGS National Water Quality Laboratory schedule 2437, water years 2013-15.

Organization: Department of the Interior
Updated: 20200826 | Harvested: July 18, 2025 at 05:02 AM

Analytical recovery is the concentration of an analyte measured in a water-quality sample expressed as a percentage of the known concentration added to the sample (Mueller and others, 2015)....

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MD iMAP: Maryland Water Quality - Tier II High Quality Waters 2012

Organization: State of Maryland
Updated: 2020-01-25 | Harvested: June 27, 2025 at 06:15 AM

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The intent of this dataset is for it to be used to produce maps and provide a spatial reference for all...

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