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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 61 - 70 of 341 listed by similarity [list alphabetically]
Upper Mississippi River basin: water quality, water elevation, and discharge [More info]
Information on flood potential and water quality in the upper Mississipi River, including downloadable data and map images.
WaterQualityWatch -Continuous Real-Time Water Quality of Surface Water in the United States [More info]
Maps and explanations of continuous real-time data collection methods and results, including water temperature, turbididty, specific conductance, dissolved oxygen, pH, and stream discharge values.
PDF Wildfire effects on source-water quality--Lessons from Fourmile Canyon fire, Colorado, and implications for drinking-water treatment [More info]
Stream discharge and nitrate concentration increased downstream of the burned area during snowmelt, but these were probably within the treatment capacity of most drinking-water plants, and limited changes were observed in downstream ecosystems.
California Water-Quality Assessment [More info]
Results of activities in California conducted under the National Water-Quality Assessment Program (NAWQA): maps, publications and data.
Georgia's Stream-Water-Quality Monitoring Network, 2006 [More info]
USGS stream-water-quality monitoring network for Georgia represents an aggregation of smaller networks and individual monitoring stations, with map and link to data.
Missouri District Water-Quality Data & Analysis Section [More info]
Homepage for the Missouri District Water-Quality Data & Analysis Section with links to data networks, projects, data availability, mobile laboratories, sampling boat, quality assurance practices, and real-time water-quality data.
National Water-Quality Assessment (NAWQA) Program - Great and Little Miami River Basins [More info]
The Great and Little Miami River Basins form a National Water Quality Assessment (NAWQA) Program study unit for studying the status, trends, and changes affecting the nation's water quality. Site links to data, publications, maps, and results.
National Water-Quality Assessment (NAWQA) Program: protocols for the analysis of algal samples collected [More info]
Summary of protocols describing procedures for laboratory analysis of algae samples collected by the U.S. Geological Survey's National Water Quality Assessment Program (NAWQA). Includes full document to be downloaded in PDF format.
National Water-Quality Assessment (NAWQA) Program: reconstructed trends national synthesis study. [More info]
Program to compile data from the National Water-Quality Assessment Program study units to study national trends with links to sediment coring sites, video on Salt Lake City, study units identification, and publications.
National Water-Quality Assessment data warehouse [More info]
Data warehouse for national water quality program with links to chemical, biological, and physical data for water, sediment and animal tissues, nutrient, pesticide, and VOC levels, streamflow, and ground water levels from national study units.
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