USGS: Science Topics: surface water quality

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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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Occurrence of Emerging Contaminants in Water and Bed Material in the Missouri River, North Dakota, 2007 [More info]: Water monitoring results, focused on wastewater compounds, human-health pharmaceutical compounds, hormones, and antibiotics in water, and waste indicators, hormones, and antibiotics in solids.
Organic compounds assessed in Neuse River water used for public supply near Smithfield, North Carolina, 2002-2005 [More info]: Reports concentration of organic compounds here, to serve as a baseline against which future measurements can be compared and to provide a general assessment of the quality of local water treatment efforts.
Organic Compounds in Clackamas River Water Used for Public Supply near Portland, Oregon, 2003-05 [More info]: In all, 56 compounds were detected in samples collected approximately monthly during 2003-05 at the intake for the Clackamas River Water plant. On the basis of this screening-level assessment, adverse effects to human health are assumed to be negligible.
Organic compounds in Elm Fork Trinity river water used for public supply near Carrollton, Texas, 2002-05 [More info]: We identified six compounds at concentrations less than human-health benchmarks, but within a factor of 10 of those limits. Those compounds might warrant further study to understand their transport and fate within the watershed.
Organic compounds in Running Gutter Brook water used for public supply near Hatfield, Massachusetts, 2003-05 [More info]: The 258 organic compounds in this assessment are man-made: pesticides, solvents, gasoline hydrocarbons, personal-care and domestic-use products, pavement and combustion-derived compounds. None were found in concentrations deemed dangerous at this time.
Organic compounds in Truckee River water used for public supply near Reno, Nevada, 2002-05 [More info]: A preliminary indication of the potential importance of compounds detected in source water to the quality of finished water prior to distribution.
Organic compounds in White River water used for public supply near Indianapolis, Indiana, 2002-05 [More info]: Measured concentrations of many compounds in water people use. Some compounds are regulated as health hazards; a few of these were over the benchmark limits. Others may become issues of concern, so studies such as this give us helpful background levels.
Pharmaceuticals, Hormones, and Other Organic Wastewater Contaminants in U.S. Streams [More info]: Describes and illustrates that a broad range of chemicals found in residential, industrial, and agricultural wastewaters commonly occur in mixtures at low concentrations downstream from areas of intense urbanization and animal production.
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.

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