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U.S. Geological Survey Programs in Minnesota
Water Resources Division, U.S. Geological Survey
1996, Fact Sheet 023-96
The U.S. Geological Survey (USGS) maps, describes, and seeks to understand Minnesota's mineral, water, and biological resources. The USGS is known for impartial data collection and data interpretation that enable resource planners and others to make informed decisions. Today's issues are more pressing than ever - understanding natural hazards to...
U.S. Geological Survey programs in Texas
Water Resources Division, U.S. Geological Survey
1996, Fact Sheet 043-96
The U.S. Geological Survey (USGS) is the Federal Government's primary source of data on the quantity and quality of the Nation's water resources, its principal civilian map making agency, and its primary provider of information on natural hazards and mineral, energy, and biological resources. The USGS makes unbiased scientific information...
Simulation of wastewater effects on dissolved oxygen during low streamflow in the Red River of the North at Fargo, North Dakota, and Moorhead, Minnesota
Edwin A. Wesolowski
1996, Fact Sheet 235-96
Pursuant to Section 303(d) of the Clean Water Act, both North Dakota and Minnesota identified part of the Red River of the North (Red River) as water-quality limited. The states are required to determine the total maximum daily load (TMDL) that can be discharged to a water-quality limited reach from...
Salinity in the Colorado River in the Grand Valley, western Colorado, 1994-95
David L. Butler, Paul B. von Guerard
1996, Fact Sheet 215-96
Salinity, or the dissolved-solids concentration, is the measure of salts such as sodium chloride, calcium bicarbonate, and calcium sulfate that are dissolved in water. About one-half of the salinity in the Colorado River Basin is from natural sources (U.S. Department of the Interior, 1995), such as thermal springs in the...
Sources and transport of phosphorus in the Western Lake Michigan Drainages
Dale M. Robertson
1996, Fact Sheet 208-96
In 1991, the U.S. Geological Survey (USGS) began full implementation of the National Water-Quality Assessment (NAWQA) Program. The goals of the NAWQA program are to (1) provide a nationally consistent descrip- tion of water-quality conditions for a large part of the Nation's water resources, (2) define long-term trends (or lack...
Comparison of aquatic macroinvertebrate samples collected using different field methods
Bernard N. Lenz, Michael A. Miller
1996, Fact Sheet 216-96
Government agencies, academic institutions, and volunteer monitoring groups in the State of Wisconsin collect aquatic macroinvertebrate data to assess water quality. Sampling methods differ among agencies, reflecting the differences in the sampling objectives of each agency. Lack of infor- mation about data comparability impedes data shar- ing among agencies, which...
Assessment of water quality at selected sites in the White River Basin, Indiana, 1993 and 1995 using biological indices
Jeffrey W. Frey, N.T. Baker, M.J. Lydy, W.W. Stone
1996, Fact Sheet 1996–0209
As part of the National Water Quality Assessment (NAWQA) Program, fish communities were sampled at 11 sites in the White River Basin, Indiana, in 1993 and 1995 to help determine water-quality conditions. Ninety-one species of fish with representatives from 18 families were collected in the basin. Total numbers of fish...