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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:
Groundwater quality (80 items)
Marine water quality (14 items)
Surface water quality (66 items)

Water-quality data (83 items)
Related topics:
Results 181 - 190 of 341 listed by similarity [list alphabetically]
PDF The Border Environmental Health Initiative-investigating the transboundary Santa Cruz watershed [More info]
Study to identify risks to water resources in the SCW, and the potential consequences to riparian ecosystems and ultimately human health.
PDF The Midwest Stream Quality Assessment [More info]
Upcoming interagency study to assess status of ecological conditions, their relationships with contaminants and nutrients, anthropogenic factors affecting these, and develop models that may predict these ecological conditions.
Transport of water, carbon, and sediment through the Yukon River basin [More info]
Summarizes a water-quality study of one of the last great uncontrolled rivers in the world, which supplies runoff, sediment, and nutrients to the eastern Bering Sea and Chukchi Sea.
PDF U.S. Geological Survey Community for Data Integration-NWIS Web Services Snapshot Tool for ArcGIS [More info]
Software used within GIS allowing streamflow, water level, and water quality data to be obtained on demand through the Internet.
USGS Water Science Cooperators and Partners in Nevada [More info]
Links to water resources data customers of the Nevada District includes federal, state, and regional agencies and Indian tribes.
Wastewater Indicators Shown to Degrade in Streams [More info]
Research findings and examples of application to real problems--the stability of contaminants that indicate human wastewater needs to be considered.
Water resources [More info]
Hydrologic and water-quality information with access to water data, publications, and maps, as well as to recent water projects and events.
Water resources activities in Texas - cooperating agencies [More info]
List of federal, state, regional, city and county agencies that cooperate with the USGS in water resources studies in Texas. Most have links to the agency's own website.
Water resources applications software [More info]
Archive of USGS water resources software and associated data with documentation available to the public without any fee or cost.
Water resources for Maryland, Delaware, and Washington, D.C. [More info]
USGS water resources home page with links to detailed hydrologic information for Maryland, Delaware, and District of Columbia on ground and surface water, water quality, real-time records, news releases, local weather, and reservoir levels.
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