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Page 4515, results 112851 - 112875

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Hydrology of the alluvial, buried channel, basal Pleistocene and Dakota aquifers in west-central Iowa
D. L. Runkle
1985, Water-Resources Investigations Report 85-4239
A ground-water resources investigation in west-central Iowa indicates that water is available from alluvial, buried channel, basal Pleistocene, and Dakota aquifers. The west-central Iowa area includes Audubon, Carrol1, Crawford, Greene, Guthrie, Harrison, Monona, and Shelby Counties. Nine alluvial aquifers consisting of sand and gravel are in the valleys of the Little...
Development and calibration of a two-dimensional digital model for the analysis of the ground-water flow system in the San Antonio Creek Valley, Santa Barbara County, California
Peter Martin
1985, Water-Resources Investigations Report 84-4340
A two-dimensional finite-difference model was used to simulate ground-water flow conditions in San Antonio Creek valley. The model was calibrated to simulate steady-state conditions as approximated by ground-water conditions in 1943 and transient conditions during the period 1944-77. The transmissivity of the aquifer and the vertical hydraulic conductivity of the...
Hydrology of the Reelfoot Lake basin, Obion and Lake counties, northwestern Tennessee
C. H. Robbins
1985, Water-Resources Investigations Report 85-4097
Nine maps describe the following water resources aspects of the Reelfoot Lake watershed: Map 1-Surface water gaging stations, lake level, and locations of observation wells, rainfall stations and National Weather Service rainfall stations; Maps 2 and 3-water level contours, river stage, groundwater movement; Maps 4 and 5-grid blocks simulating constant...
Effects of land use and surficial geology on flow and water quality of streams in the coal-mining region of southwestern Indiana, October 1979 through September 1980
William G. Wilber, Danny E. Renn, Charles G. Crawford
1985, Water-Resources Investigations Report 85-4234
An assessment of streams in the coal-mining region of southwestern Indiana was done from October 1979 through September 1980 during stable stream flows to provide baseline hydrologic and water-quality information and to document the effect of several natural and human-induced factors on water quality in the region. Streams in southwestern Indiana...
Physical characteristics and chemical quality of selected springs in parts of Juab, Millard, Tooele, and Utah counties, Utah
Dale E. Wilberg, Bernard J. Stolp
1985, Water-Resources Investigations Report 85-4324
Hydrologic, geologic, and partial water quality data were collected at 90 selected springs in west-central Utah, and chemical analyses performed on water samples from 62 of the springs. Descriptions of the physiographic and geologic conditions, climate, and vegetation patterns for the study area are included. Allowable limits of certain chemical...
Occurrence of natural radium-226 radioactivity in ground water of Sarasota County, Florida
R. L. Miller, Horace Sutcliffe
1985, Water-Resources Investigations Report 84-4237
Water that contains radium-226 radioactivity in excess of the 5.0-picocurie-per-liter limit set in the National Interim Primary Drinking Water Regulations was found in the majority of wells sampled throughout Sarasota County. Highest levels were found areally near the coast or near rivers and vertically in the Tamiami-upper Hawthorn aquifer where...
Effects of wastewater effluent on the South Platte River from Littleton to Denver
N.E. Spahr, S. R. Blakely
1985, Water-Resources Investigations Report 85-4124
The U.S. Geological Survey 's one-dimensional steady-state water quality model was used to investigate the effects of the effluent from the Bi-City WWTP (Wastewater Treatment Plant) on the South Platte River. The Bi-City WWTP is operated by the Cities of Littleton and Englewood. The model was calibrated from a 14.5...
Estimation of evaporation from Ned Wilson Lake, Flat Tops Wilderness Area, Colorado
N.E. Spahr, J.T. Turk
1985, Water-Resources Investigations Report 85-4244
As part of an effort to define the hydrology and water quality of Ned Wilson Lake, evaporation rates were estimated for the summer periods of 1983 and 1984. Mass-transfer and energy-budget techniques and the Morton model were used to estimate evaporation using data collected at the lake and data collected...
The flood of December 1982 and the 100- and 500-year flood on the Buffalo River, Arkansas
B.L. Neely
1985, Water-Resources Investigations Report 85-4192
Flood profiles, peak discharges, and stages were determined for the December 1982, the 100-year, and the 500-year floods at 17 sites along the Buffalo River, Arkansas. Typical synthetic stage hydrographs for the 100- and 500-year floods were determined for each site. Flow duration data for gaging stations at St. Joe...
Preparation of polyethylene sacks for collection of precipitation samples for chemical analysis
L.J. Schroder, A.W. Bricker
1985, Water-Resources Investigations Report 85-4067
Polyethylene sacks are used to collect precipitation samples. Washing polyethylene with acetone, hexane, methanol, or nitric acid can change the adsorptive characteristics of the polyethylene. In this study, simulated precipitation at pH 4.5 was in contact with the polyethylene sacks for 21 days; subsamples were removed for chemical analysis at...
Precision and bias of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1983; and January 1980 through September 1984
L.J. Schroder, A.W. Bricker, T. C. Willoughby
1985, Water-Resources Investigations Report 85-4275
Blind-audit samples with known analyte concentrations have been prepared by the U.S. Geological Survey and distributed to the National Atmospheric Deposition Program 's Central Analytical Laboratory. The difference between the National Atmospheric Deposition Program and National Trends Network reported analyte concentrations and known analyte concentrations have been calculated, and the...
Ground-water contamination in East Bay Township, Michigan
F. R. Twenter, T. R. Cummings, N.G. Grannemann
1985, Water-Resources Investigations Report 85-4064
Glacial deposits, as much as 360 feet thick, underlie the study area. The upper 29 to 118 feet, a sand and gravel unit, is the aquifer tapped for water by all wells in the area. This unit is underlain by impermeable clay that is at least 100 feet thick. Ground-water...
Geohydrologic units of the Gulf Coastal Plain in Arkansas
J. C. Petersen, M.E. Broom, W. V. Bush
1985, Water-Resources Investigations Report 85-4116
This report describes geohydrologic units of the Jurassic, Cretaceous, Tertiary and Quaternary Systems and of the Paleozoic Era in the Gulf Coastal Plain in Arkansas. Structure contour maps on top of the Paleozoic rocks, Trinity Group, Tokio Formation, Nacatoch Sand, Midway Group, Wilcox Group, Carrizo Sand, Cane River Formation. Sparta...
Effects of fracturing on well yields in the coalfield areas of Wise and Dickenson counties, southwestern Virginia
W. G. Wright
1985, Water-Resources Investigations Report 85-4061
Fracturing associated with lineaments are the primary influence on yields from wells in the coalfields of southwestern Virgnia. Graphical comparison of yield from wells shows that wells located in valleys with lineaments produce larger quantities of water than wells in valleys without lineaments. Pumping tests at wells located in valleys...
Water-quality conditions and an evaluation of ground- and surface-water sampling programs in the Livermore-Amador Valley, California
S. K. Sorenson, P. V. Cascos, R. L. Glass
1985, Water-Resources Investigations Report 84-4352
A program to monitor the ground- and surface water quality in the Livermore-Amador Valley has been operated since 1976. As of 1982, this monitoring network consisted of approximately 130 wells, about 100 of which were constructed specifically for this program, and 9 surface water stations. Increased demand on the groundwater...
Evaluation of the effects of coal-mine reclamation on water quality in Big Four Hollow near Lake Hope, southeastern Ohio
V.E. Nichols
1985, Water-Resources Investigations Report 85-4197
A subsurface clay dike and mine-entrance hydraulic seals were constructed from July 1979 through May 1980 by the Ohio Department if Natural Resources, Division of Reclamation to reduce acidic mine drainage from abandoned drift-mine complex 88 into Big Four Hollow Creek. Big Four Hollow Creek flows into Sandy Run--the major...
Geohydrology of the High Plains Aquifer, western Kansas
L.E. Stullken, Kenneth R. Watts, R. J. Lindgren
1985, Water-Resources Investigations Report 85-4198
The High Plains aquifer underlies 174,050 sq mi of eight states (Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming) and contains approximately 3.3 billion acre-ft of water in storage. Saturated thicknesses within the aquifer are as great as 600 ft near the southern border of southwest Kansas....
A computer program for analyzing channel geometry
R.S. Regan, R.W. Schaffranek
1985, Water-Resources Investigations Report 85-4335
The Channel Geometry Analysis Program (CGAP) provides the capability to process, analyze, and format cross-sectional data for input to flow/transport simulation models or other computational programs. CGAP allows for a variety of cross-sectional data input formats through use of variable format specification. The program accepts data from various computer media...