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Page 4004, results 100076 - 100100

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Water resources data, Iowa, water year 1990
D. J. O’Connell, M. J. Liszewski, R.B. Lambert, W.J. Matthes
1990, Water Data Report IA-90-1
Water resources data for the 1990 water year for Iowa consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; ground water levels and water quality of ground-water wells. This report contains records of water discharge for 117 stream-gaging stations;...
Comparison of accuracy and completeness of data obtained from three types of automatic water-quality monitors
Max Katzenbach
1990, Water-Resources Investigations Report 89-4198
A comparison of data (specific conductance, dissolved-oxygen concentration, temperature, and pH) collected by the U.S. Geological Survey flowthrough monitor, the U.S. Geological Survey minimonitor, and a self-contained commercial 'packaged-sensor' system indicates that the data obtained by means of the most complete of the three systems. The U.S. Geological Survey flowthrough monitor...
Determination of hydraulic properties in the vicinity of a landfill near Antioch, Illinois
Robert T. Kay, John D. Earle
1990, Water-Resources Investigations Report 89-4124
A hydrogeologic investigation was conducted in and around a landfill near Antioch, Illinois, in December 1987. The investigation consisted, in part, of an aquifer test that was designed to determine the hydraulic connection between the hydrogeologic units in the area. The hydrogeologic units consist of a shallow, unconfined, sand and...
Simulation of ground-water flow in the St Peter aquifer in an area contaminated by coal-tar derivatives, St Louis Park, Minnesota
D. L. Lorenz, J. R. Stark
1990, Water-Resources Investigations Report 90-4150
A model constructed to simulate ground-water flow in part of the Prairie du Chien-Jordan and St. Peter aquifers, St. Louis Park, Minnesota, was used to test hypotheses about the movement of ground water contaminated with coal-tar derivatives and to simulate alternatives for reducing the downgradient movement of contamination in the...
Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the American Falls Reservoir area, Idaho, 1988-89
Walton H. Low, William H. Mullins
1990, Water-Resources Investigations Report 90-4120
Increased concern about the quality of irrigation drainage and its potential effects on human health, fish, and wildlife prompted the Department of the Interior to begin a program during late 1985 to identify irrigation-induced water-quality problems that might exist in the Western States. During `988, the Task Group on Irrigation...
Water resources of the Descanso Area, San Diego County, California
L. F. Duell Jr.
1990, Water-Resources Investigations Report 90-4014
Hydrologic information was collected during water year 1988 (October 1987 to September 1988) to evaluate the effects of current pumping on groundwater levels in the Descanso area in south-central San Diego County. Water year 1988 was a period of near-normal precipitation and runoff. The groundwater system in the area...
Hydrology, aquatic macrophytes, and water quality of Black Earth Creek and its tributaries, Dane County, Wisconsin, 1985-86
S. J. Field, D.J. Graczyk
1990, Water-Resources Investigations Report 89-4089
An intensive data-collection program for the Black Earth Creek basin in southern Wisconsin was conducted from October 1984 through September 1986 to assess the hydrology, aquatic macrophytes, and water quality in Black Earth Creek by the U.S. Geological Survey, in cooperation with the Wisconsin Department of Natural Resources. Three sites...
Long-term effects of surface coal mining on ground-water levels and quality in two small watersheds in eastern Ohio
W. L. Cunningham, R.L. Jones
1990, Water-Resources Investigations Report 90-4136
Two small watersheds in eastern Ohio that were surface mined for coal and reclaimed were studied during 1986-89. Water-level and water-quality data were compared with similar data collected during previous investigations conducted during 1976-83 to determine long-term effects of surface mining on the hydrologic system. Before mining, the watersheds were...