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Page 4323, results 108051 - 108075

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Selected water-quality characteristics in the upper Mississippi River basin, Royalton to Hastings, Minnesota
M.R. Have
1991, Water-Resources Investigations Report 88-4053
The upper Mississippi River basin from Royalton to Hastings, Minnesota, includes seven subbasins in east-central Minnesota that cover an area of 8,500 square miles. Results of a study, using data from the Minnesota Pollution Control Agency, Metropolitan Waste Control Commission, and the U.S. Geological Survey, indicate that selected water-quality characteristics...
Methods for estimating monthly mean concentrations of selected water-quality constituents for stream sites in the Red River of the North basin, North Dakota and Minnesota
R. S. Guenthner
1991, Water-Resources Investigations Report 91-4086
Future development of the Garrison Diversion Unit may divert water from the Missouri River into the Sheyenne River and the Red River of the North for municipal and industrial use. The U.S. Bureau of Reclamation's Canals, Rivers, and Reservoirs Salinity Accounting Procedures model can be used to predict the effect...
Geochemistry of Soil Samples from 50 Solution-Collapse Features on the Coconino Plateau, Northern Arizona
Bradley S. Van Gosen, Karen J. Wenrich
1991, Open-File Report 91-594-A-D
Soil sampling surveys were conducted during 1984-1986 across 50 solution-collapse features exposed on the Coconino Plateau of northern Arizona in order to determine whether soil geochemistry can be used to distinguish mineralized breccia pipes from unmineralized collapse features. The 50 sampled features represent the variety of collapse features that crop...
Effects of land-management practices on sediment yields in northeastern Guilford County, North Carolina
C.L. Hill
1991, Water-Resources Investigations Report 90-4127
Streamflow, precipitation, and suspended-sediment data were collected from two small agricultural basins in the Piedmont province of North Carolina. The data were used to determine the effects of land-management practices on sediment yield. One basin of 7.4 acres represents best land-management practices with strip cropping, crop rotation, contour farming, and...
Compilation of ground-water level measurements, obtained by the United States Geological Survey in Puerto Rico, 1958-1985
Sigfredo Torres-Gonzalez
1991, Open-File Report 88-701
A digital compilation of the groundwater levels in Puerto Rico was prepared as part of the Caribbean Islands Regional Aquifers System Analysis program. Of special interest are the groundwater levels measurements obtained on a routine basis at wells located in the different aquifer regions or aquifer zones. Data from 181...
Chemical and physical data related to ground water in the vicinity of abandoned uraniferous lignite mines, western North Dakota, December 1983 through June 1988
J. D. Wald
1991, Open-File Report 91-527
Geochemical and hydrologic data were collected in and around six abandoned uranlferous lignite mines in western North Dakota during December 1983 through June 1988. These data Include well construction and field water-quality data for 224 wells, test holes, and springs. Also Included are water levels in selected wells, lithologlc logs of...