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Page 3315, results 82851 - 82875

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Effects of pumping collector wells on river-aquifer interaction at Platte River Island near Ashland, Nebraska, 1998
G. V. Steele, Ingrid M. Verstraeten
1999, Water-Resources Investigations Report 99-4161
The city of Lincoln, Nebraska, owns and operates two large collector wells-W90-1H and W90-2H-on the Platte River Island near Ashland, Nebraska (fig. 1). Wells W90-1H and W90-2H augment water supplies from the city's primary well fields on the west bank of the Platte River. In 1998, the U.S. Geological Survey (USGS) and...
Age, double porosity, and simple reaction modifications for the MOC3D ground-water transport model
Daniel J. Goode
1999, Water-Resources Investigations Report 99-4041
This report documents modifications for the MOC3D ground-water transport model to simulate (a) ground-water age transport; (b) double-porosity exchange; and (c) simple but flexible retardation, decay, and zero-order growth reactions. These modifications are incorporated in MOC3D version 3.0. MOC3D simulates the transport of a single solute using the method-of-characteristics numerical procedure....
A precipitation-runoff model for part of the Ninemile Creek watershed near Camillus, Onondaga County, New York
Phillip J. Zarriello
1999, Water-Resources Investigations Report 98-4201
A precipitation-runoff model, HSPF (Hydrologic Simulation Program Fortran), of a 41.7 square mile part of the Ninemile Creek watershed near Camillus, in central New York, was developed and calibrated to predict the hydrological effects of future suburban development on streamflow, and the effects of stormwater detention on flooding of Ninemile...
Effectiveness of streambank-stabilization techniques along the Kenai River, Alaska
Joseph M. Dorava
1999, Water-Resources Investigations Report 99-4156
The Kenai River in southcentral Alaska is the State's most popular sport fishery and an economically important salmon river that generates as much as $70 million annually. Boatwake-induced streambank erosion and the associated damage to riparian and riverine habitat present a potential threat to this fishery. Bank-stabilization techniques commonly in...
Trends in Water Quality of New Jersey Streams, Water Years 1986-95
R. Edward Hickman, Thomas H. Barringer
1999, Water-Resources Investigations Report 98-4204
Trend tests were conducted on values of 24 water-quality characteristics measured at 83 surface-water-quality stations on streams in New Jersey during water years 1986-95. Characteristics tested include physical properties and concentrations of nutrients, bacteria, and major dissolved constituents. Seasonal Kendall uncensored tests and tobit regression were used to determine whether...
Field trip guide to selected studies of the Southwest Mineral and Environmental Investigations Project in southeastern Arizona
B. B. Houser, M. E. Gettings, M.W. Bultman, Floyd Gray, K.R. Caruthers, D.M. Hirschberg
1999, Open-File Report 99-544
The Southwest Mineral and Environmental Investigations Project is designed to address issues raised by rapid urban development in the basins of the southwestern U.S. These issues require objective geoscientific data that can be used by land managers and stakeholders to develop informed land and water use strategies. The project integrates...
Quantity and quality of seepage from two earthen basins used to store livestock waste in southern Minnesota during the first year of operation, 1997-98
James F. Ruhl
1999, Water-Resources Investigations Report 99-4206
Numerous earthen basins have been constructed in Minnesota for storage of livestock waste. Typically, these basins are excavated pits with partially above-grade, earth-walled embankments and compacted clay liners. Some have drain tile installed around them to prevent shallow ground and soil water to discharge into the basins. Environmental concerns associated...
Regional water-level changes for the Cambrian-Ordovician aquifer in Iowa, 1975 to 1997
Michael J. Turco
1999, Water-Resources Investigations Report 99-4134
The Cambrian-Ordovician aquifer is one of the principal sources of ground water for industry and municipalities in Iowa. The 1998 Iowa Administrative Code Chapter 52.4(3) states that water levels in the Cambrian-Ordovician aquifer are not to decline more than 200 feet from the 1977 baseline. The potentiometric-surface map of the...
Pesticides in streams of the United States : initial results from the National Water-Quality Assessment Program
Steven J. Larson, Robert J. Gilliom, Paul D. Capel
1999, Water-Resources Investigations Report 98-4222
Water samples from 58 rivers and streams across the United States were analyzed for pesticides as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. The sampling sites represent 37 diverse agricultural basins, 11 urban basins, and 10 basins with mixed land use. Forty-six pesticides and pesticide...
Water-quality assessment of south-central Texas — Descriptions and comparisons of nutrients, pesticides, and volatile organic compounds at three intensive fixed sites, 1996-98
Patricia B. Ging
1999, Water-Resources Investigations Report 99-4155
Water-quality samples were collected during April 1996-April 1998 at three intensive fixed sites in the San Antonio region of the South-Central Texas study unit as part of the U.S. Geological Survey National Water-Quality Assessment Program. The sampling strategy for the intensive fixed-site assessment is centered on obtaining information about the...
Site-specific estimation of peak-streamflow frequency using generalized least-squares regression for natural basins in Texas
William H. Asquith, R.M. Slade Jr.
1999, Water-Resources Investigations Report 99-4172
The U.S. Geological Survey, in cooperation with the Texas Department of Transportation, has developed a computer program to estimate peak-streamflow frequency for ungaged sites in natural basins in Texas. Peak-streamflow frequency refers to the peak streamflows for recurrence intervals of 2, 5, 10, 25, 50, and 100 years. Peak-streamflow frequency...
Hydrogeologic properties of the Ordovician Sinnipee Group at test well BN-483, Better Brite Superfund Site, De Pere, Wisconsin
W. G. Batten, Douglas J. Yeskis, Charles P. Dunning
1999, Water-Resources Investigations Report 99-4199
Test well BN-483, near the Better Brite Superfund Site, was drilled to a total depth of 169 feet below land surface. The Ordovician-age Sinnipee Group, which includes the Galena Dolomite, and the Decorah and Platteville Formations, was encountered from about 25 feet below land surface to a depth of about...
Water-resources-related information for the Oneida Reservation and vicinity, Wisconsin
David A. Saad, Morgan A. Schmidt
1999, Water-Resources Investigations Report 98-4266
Water-resources information has been compiled from 82 studies in which data were collected from the Oneida Reservation and vicinity. Forty-seven studies addressed surface-water issues, 33 studies addressed ground-water issues, and 23 studies addressed aquatic-biology issues. Some multidisciplinary studies are included in more than one category. Most of the surface-water studies summarized...
The Sparta aquifer in Arkansas' critical ground-water areas: Response of the aquifer to supplying future water needs
Phillip D. Hays, D. Todd Fugitt
1999, Water-Resources Investigations Report 99-4075
The Sparta aquifer is a confined aquifer of great regional importance that comprises a sequence of unconsolidated sand, silt, and clay units extending across much of eastern and southeastern Arkansas and into adjoining States. Water use from the aquifer has doubled since 1975 and continues to increase, and large water-level...
Episodic sediment-discharge events in Cascade Springs, southern Black Hills, South Dakota
Timothy Scott Hayes
1999, Water-Resources Investigations Report 99-4168
Cascade Springs is a group of artesian springs in the southern Black Hills, South Dakota, with collective flow of about 19.6 cubic feet per second. Beginning on February 28, 1992, a large discharge of red suspended sediment was observed from two of the six known discharge points. Similar events during...
Hydrogeology of the upper Floridan Aquifer in the vicinity of the Marine Corps Logistics Base near Albany, Georgia
Kristen Bukowski McSwain
1999, Water-Resources Investigations Report 98-4202
In 1995, the U.S. Navy requested that the U.S. Geological Survey conduct an investigation to describe the hydrogeology of the Upper Floridan aquifer in the vicinity of the Marine Corps Logistics Base, southeast and adjacent to Albany, Georgia. The study area encompasses about 90 square miles in the Dougherty Plain...