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Page 1698, results 42426 - 42450

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Geohydrology and water quality of the Calumet aquifer, in the vicinity of the Grand Calumet River/Indiana Harbor Canal, northwestern Indiana
J.M. Fenelon, Lee R. Watson
1993, Water-Resources Investigations Report 92-4115
The water-table configuration of the Calumet aquifer in the vicinity of the Grand Calumet River/Indiana Harbor Canal in Lake County, northwestern Indiana, reflects the complexity of the shallow ground-water-flow system. Large depressions in the water table in sewered areas interrupt broad ground-water divides between rivers. The aquifer/stream interactions along the...
Laboratory procedures and data reduction techniques to determine rheologic properties of mass flows
Robert R. Holmes Jr., R.J. Huizinga, S.M. Brown, H.E. Jobson
1993, Water-Resources Investigations Report 93-4123
Determining the rheologic properties of coarse- grained mass flows is an important step to mathematically simulate potential inundation zones. Using the vertically rotating flume designed and built by the U.S. Geological Survey, laboratory procedures and subsequent data reduction have been developed to estimate shear stresses and strain rates of various...
Effects of agricultural and residential land use on ground-water quality, Anoka Sand Plain Aquifer, east-central Minnesota
H. W. Anderson Jr.
1993, Water-Resources Investigations Report 93-4074
Water quality in the 1,700-square-mile Anoka Sand Plain aquifer is affected by irrigated and nonirrigated agriculture and by residential land use. Concentrations of sulfate, chloride, nitrite plus nitrate nitrogen, and pesticides in ground water are related to human activities; nitrite plus nitrate nitrogen concentrations are affected more than concentrations of...
Water resources of Washakie County, Wyoming
D. D. Susong, M.L. Smalley, E. R. Banta
1993, Water-Resources Investigations Report 91-4044
Data on the surface- and ground-water resources are complied to summarize the water resources of Washakie County. This study, prepared in cooperation with the Wyoming State Engineer, is one in a series investigating the water resources of Wyoming counties . The three principal types of streams in the county are...
Reconnaissance data for selected herbicides, two atrazine metabolities, and nitrate in surface water of the Midwestern United States, 1989-90
E.A. Scribner, E.M. Thurman, D. A. Goolsby, M. T. Meyer, M. S. Mills, M.L. Pomes
1993, Open-File Report 93-457
Water-quality data were collected from 147 rivers and streams during 1989-90 to assess selected preemergent herbicides, two atrazine metabolites, and nitrate in 10 Midwestern States. This report includes a description of the sampling design, data collection techniques, laboratory and analytical methods, and a compilation of constituent concentrations and quality-assurance data....
Potentiometric surface of the Aquia Aquifer in southern Maryland, September 1991
Stephen E. Curtin, D. C. Andreasen, Frederick K. Mack
1993, Open-File Report 93-652
A map showing the potentiometric surface of the Aquia aquifer in the Aquia Formation of Paleocene age in southern Maryland during September 1991 was prepared from water levels measured in 82 wells. The potentiometric surface was above sea level near the northwestern boundary and outcrop area of the aquifer in...
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of inorganic and organic constituents in water and fluvial sediments
M. J. Fishman, editor(s)
1993, Open-File Report 93-125
Methods to be used to analyze samples of water, suspended sediment and bottom material for their content of inorganic and organic constituents are presented. Technology continually changes, and so this laboratory manual includes new and revised methods for determining the concentration of dissolved constituents in water, whole water recoverable constituents...
Potentiometric surface of the Magothy Aquifer in southern Maryland, September 1991
Stephen E. Curtin, D. C. Andreasen, Frederick K. Mack
1993, Open-File Report 93-653
A map showing the potentiometric surface of the Magothy aquifer in the Magothy Formation of Cretaceous age in southern Maryland during September 1991 was prepared from water levels measured in 89 wells. The potentiometric surface was highest near the northwestern boundary and outcrop area of the aquifer in topographically high...
Activities of the Water Resources Division in Arizona, 1986-91
L. M. Spicer (compiler), E.K. van de Vanter
1993, Open-File Report 93-165
Water-resources activities of the U.S. Geological Survey in Arizona consist of collecting water- resources data and conducting interpretive hydrologic investigations and research. The water- resources data and the results of the interpretive investigations and research are published or released by the U.S. Geological Survey or by cooperating agencies. The report...
Streamflow and selected precipitation data for Yucca Mountain and vicinity, Nye County, Nevada, water years 1983-85
M.E. Pabst, D.A. Beck, P.A. Glancy, J. A. Johnson
1993, Open-File Report 93-438
Streamflow and precipitation data collected at and near Yucca Mountain, Nevada, during water years 1983-85, are presented. The data were collected and compiled as part of the studies the U.S. Geological Survey is making, in cooperation with the U.S. Department of Energy, to characterize surface water hydrology in the Yucca...