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Page 4005, results 100101 - 100125

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Not all publications have extents, not all extents are completely accurate
Hydrology and land use in Grand Traverse County, Michigan
T. R. Cummings, J.L. Gillespie, N.G. Grannemann
1990, Water-Resources Investigations Report 90-4122
Glacial deposits are the sole source of ground-water supplies in Grand Traverse County. These deposits range in thickness from 100 to 900 feet and consist of till, outwash, and materials of lacustrine and eolian origin. In some areas, the deposits fill buried valleys that are 500 feet deep. Sedimentary rocks...
Gaged and estimated monthly streamflow during 1931-84 for selected sites in the Red River of the North basin in North Dakota and Minnesota
R. S. Guenthner, J. F. Weigel, D. G. Emerson
1990, Water-Resources Investigations Report 90-4167
Operation of the Garrison Diversion Unit in North Dakota may have various effects on the quantity and quality of streamflow in the Sheyenne River and the Red River of the North. To model the effects that the Garrison Diverson Unit could have on water quantity, monthly gaged and estimated streamflow...
Simulation of ground-water flow in the Mississippi River Valley alluvial aquifer in eastern Arkansas
G.L. Mahon, A. H. Ludwig
1990, Water-Resources Investigations Report 89-4145
The U.S Geological Survey has developed and calibrated a digital model of the flow system in the alluvial aquifer as part of a multiagency Eastern Arkansas Region Comprehensive Study being conducted by the U. S. Army Corps of Engineers. Other cooperating agencies include the U.S. Soil Conservation Service, the Arkansas...
Geohydrology and water quality of confined-drift aquifers in the Brooten-Belgrade area, west-central Minnesota
G. N. Delin
1990, Water-Resources Investigations Report 88-4124
Confined-drift aquifers in six aquifer zones identified in a 1,300-square-mile area of west-central Minnesota near Brooten and Belgrade range in thickness from 5 to 110 feet. Transmissivities generally range from 500 to 10,000 feet squared per day, and theoretical well yields generally range from 100 to 900 gallons per minute. Regional...
Recharge rates and aquifer hydraulic characteristics for selected drainage basins in middle and east Tennessee
A.B. Hoos
1990, Water-Resources Investigations Report 90-4015
Quantitative information concerning aquifer hydrologic and hydraulic characteristics is needed to manage the development of ground-water resources. These characteristics are poorly defined for the bedrock aquifers in Middle and East Tennessee where demand for water is increasing. This report presents estimates of recharge rate, storage coefficient, diffusivity, and transmissivity for...
Effects of storm-water runoff on local ground-water quality, Clarksville, Tennessee
Anne B. Hoos
1990, Water-Resources Investigations Report 90-4044
Storm-related water-quality data were collected at a drainage-well site and at a spring site in Clarksville, Tennessee, to define the effects of storm-water runoff on the quality of ground water in the area. A dye-trace test verified the direct hydraulic connection between the drainage well and Mobley Spring. Samples of...
Simulation of ground-water flow in the Prairie du Chien-Jordan and overlying aquifers near the Mississippi River, Fridley, Minnesota
R. J. Lindgren
1990, Water-Resources Investigations Report 90-4165
A three-dimensional, ground-water-flow model was developed to gain an improved understanding of the ground-water-flow system and its response to withdrawals near the Minneapolis Water Works in Fridley, Minnesota. Eight hydrogeologic units are represented in the ground-water-flow model. Aquifers represented are the unconfined-drift, confined-drift, St. Peter, and Prairie du Chien-Jordan. Confining...
Geohydrologic characteristics and simulated response to pumping stresses in the Sparta aquifer in East-Central Arkansas
Daniel J. Fitzpatrick, John M. Kilpatrick, Harry McWreath
1990, Water-Resources Investigations Report 88-4201
A finite difference digital model of the Sparta aquifer system in Arkansas was developed to aid in assessing the geohydrologic characteristics of the aquifer as well as the impact of withdrawals on water-level declines in the aquifer. The model consists of two layers. The Cockfield aquifer, represented by layer 1,...
Pesticides in soils and ground water in selected irrigated agricultural areas near Havre, Ronan, and Huntley, Montana
D.W. Clark
1990, Water-Resources Investigations Report 90-4023
Three areas in Montana representing a range of agricultural practices and applied pesticides, were studied to document whether agricultural pesticides are being transported into the soil and shallow groundwater in irrigated areas. Analytical scans for triazine herbicides, organic-acid herbicides, and carbamate insecticides were performed on soil and shallow groundwater samples....
Large springs in the Valley and Ridge Province in Tennessee
E. F. Hollyday, M.A. Smith
1990, Water-Resources Investigations Report 89-4205
Approximately 2,700 miscellaneous discharge measurements for 171 large springs in 28 counties of East Tennessee, predominantly within the Valley and Ridge physiographic province, were analyzed statistically and results tabulated to summarize data useful to the Appalachian Valleys-Piedmont Regional Aquifer System Analysis study. The number of measurements at each spring ranged...
Surface-water hydrology and salinity of the Anclote River estuary, Florida
Mario Fernandez Jr.
1990, Water-Resources Investigations Report 89-4046
Direct measurements of streamflow, tides, and salinity in the Anclote River Estuary, Florida were made during the period January 1984 through May 1986; historical streamflow was compared to that measured during the study; the influence of well-field pumpage on streamflow was evaluated; and regression relations between salinity, tide, and average...
Technique for estimating depths of 100-year floods in Pennsylvania
Herbert N. Flippo Jr.
1990, Water-Resources Investigations Report 86-4195
Techniques are developed for estimating 100-year flood depths in natural channels of unregulated Pennsylvania streams that drain less than 2,200 square miles. Equations and graphs are presented relating the depth of the 100-year flood above median stage and drainage area in five defined hydrologic areas in the State. Another graph...
Water quality in Gaines Creek and Gaines Creek Arm, Eufaula Lake, Oklahoma
J. K. Kurklin
1990, Water-Resources Investigations Report 86-4169
Based on samples collected from May 1978 to May 1980 and analyzed for major anions, nitrogen, trace elements, phytoplankton, and bacteria, the water in Gaines Creek and the Gaines Creek arm of Eufaula Lake was similar with respect to suitability for municipal use. Water from Gaines Creek had a pH...