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Surface water quality
Chemical, physical, and biological characteristics of water in lakes, rivers, or streams related to its fitness for use.
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Results 11 - 20 of 66 listed by similarity [list alphabetically]
Surface-water data and statistics from U.S. Geological Survey data-collection networks in New Jersey on the world wide web [More info]
Streamflow-gaging and water quality sampling sites with real-time and historical surface-water data for many of the sites in New Jersey.
Surface-water data for the Nation [More info]
Homepage for USGS national surface-water data with more than 850,000 station years of time-series data for stream levels, streamflow (discharge), reservoir and lake levels, surface-water quality, and rainfall plus real-time data and tutorial.
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.
Water quality information pages [More info]
Homepage of the Office of Water Quality programs on the quality of the Nation's surface water and ground water resources, with links to general information, quality assurance, software, data, publications, USGS facilities, techniques, and programs.
PDF Water quality studied in areas of unconventional oil and gas development, including areas where hydraulic fracturing techniques are used, in the United States [More info]
Maps showing number of water quality samples in areas underlain by unconventional oil and gas resources, broken out by surface water and groundwater.
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.
Endocrine Disruption Found in Fish Exposed to Municipal Wastewater [More info]
Research findings and examples of application to real problems--cause and potential effects of wastewater on fish in streams is explored.
National Stream Quality Accounting Network (NASQAN) [More info]
Homepage for description of the National Stream Quality Network (NASQAN), a long-term program monitoring the concentrations and flux of sediment and chemicals in the Nation's largest rivers (Mississippi, Columbia, Colorado, Rio Grande, and Yukon).
Nevada Water Science Center Projects [More info]
Links to detailed descriptions of USGS water-related research projects in Nevada with project information, location maps, and bibliographies including online reports.
Nutrients in the Nation's streams and groundwater: National findings and implications [More info]
Despite public sector efforts to reduce nonpoint-source nutrients in streams and rivers, concentrations have remained the same or increased, continuing to pose risks to aquatic life and human health.
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