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Water quality
The chemical, physical, and biological characteristics of water, usually in respect to its suitability for a particular purpose.
Subtopics:
Ground-water quality (23 items)
Marine water quality (11 items)
Surface water quality (26 items)

Water-quality data (84 items)
Related topics:
Results 91 - 100 of 251 listed by similarity [list alphabetically]
Water-quality data for Vermont [New Window]
Consistent, historic, and up-to-date water-quality data, such as temperature, specific conductance, pH, nutrients, pesticides, and volatile organic compounds downloadable from the USGS National Water Information System as graphs, tables, or files.
Water-quality data for Virgin Islands [New Window]
Consistent, historic, and up-to-date water-quality data, such as temperature, specific conductance, pH, nutrients, pesticides, and volatile organic compounds downloadable from the USGS National Water Information System as graphs, tables, or files.
Water-quality data for Virginia [New Window]
Consistent, historic, and up-to-date water-quality data, such as temperature, specific conductance, pH, nutrients, pesticides, and volatile organic compounds downloadable from the USGS National Water Information System as graphs, tables, or files.
Water-quality data for Washington [New Window]
Consistent, historic, and up-to-date water-quality data, such as temperature, specific conductance, pH, nutrients, pesticides, and volatile organic compounds downloadable from the USGS National Water Information System as graphs, tables, or files.
Water-quality data for West Virginia [New Window]
Consistent, historic, and up-to-date water-quality data, such as temperature, specific conductance, pH, nutrients, pesticides, and volatile organic compounds downloadable from the USGS National Water Information System as graphs, tables, or files.
Water-quality data for Wisconsin [New Window]
Consistent, historic, and up-to-date water-quality data, such as temperature, specific conductance, pH, nutrients, pesticides, and volatile organic compounds downloadable from the USGS National Water Information System as graphs, tables, or files.
Water-quality data for Wyoming [New Window]
Consistent, historic, and up-to-date water-quality data, such as temperature, specific conductance, pH, nutrients, pesticides, and volatile organic compounds downloadable from the USGS National Water Information System as graphs, tables, or files.
Water-quality information - data [New Window]
Links to major databases on USGS real-time and historic time period data for water quality, atmospheric deposition, streamflow, and suspended sediments and links to related databases of other agencies.
Biological resource status and trends: Contaminants in water [New Window]
Information concerning status and trends of biological resources, focusing on contaminants in water
Ground-water data for the Nation [New Window]
National Water Information System (NWIS) real-time data on selected ground water sites, ground water level data, site inventory of wells, test holes, drains, springs and excavations and ground water-quality data for the United States.
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