Simulation of trickle irrigation, an extension to the US Geological Survey's computer program VS2D
R. W. Healy
1987, Water-Resources Investigations Report 87-4086
A method is presented for simulating water movement through unsaturated porous media in response to a constant rate of application from a surface source. Because the rate at which water can be absorbed by soil is limited, the water will pond; therefore the actual surface area over which the water...
Hydraulic analyses of water-surface profiles in the vicinity of the Coamo Dam and Highway 52 bridge, southern Puerto Rico: Flood analyses as related to the flood of October 7, 1985
K. G. Johnson, Ferdinand Quinones-Marquez, Ralph Gonzalez
1987, Water-Resources Investigations Report 87-4039
The magnitude, frequency and extent of the flood of October 7, 1985 at the Rio Coamo in the vicinity of the Coamo Dam and Highway 52 bridge in southern Puerto Rico, were investigated. The observed flood profiles were used to calibrate a step-backwater model. The calibrated model was then used...
Effects of proposed highway embankment modifications on water-surface elevations in the lower Pearl River flood plain near Slidell, Louisiana
J. J. Gilbert, R. E. Schuck-Kolben
1987, Water-Resources Investigations Report 86-4129
Major flooding in the lower Pearl River basin in recent years has caused extensive damage to homes and highways in the area. In 1980 and 1983, Interstate Highway 10 and U.S. Highway 190 were overtopped. In 1983, the Interstate Highway 10 crossing was seriously damaged by the flood. The U.S....
Ground-water levels in the alluvial aquifer at Louisville, Kentucky, 1982-87
R.J. Faust, M. A. Lyverse
1987, Water-Resources Investigations Report 87-4197
Water level data have been collected in the alluvial aquifer at Louisville, Kentucky by the U.S. Geological Survey since 1943. Interpretations of these data have been published in several reports by the Survey, but none have been published since 1983. Contour maps and hydrographs are presented in this report to...
Effect of grid size on digital simulation of ground-water flow in the southern High Plains of Texas and New Mexico
R. R. Luckey, D.M. Stephens
1987, Water-Resources Investigations Report 87-4085
Three models of the aquifer in the southern High Plains were compared to determine the effect of grid size on simulated water levels. The first model, calibrated prior to this study, had 10-mi grid spacing. The mean difference between the simulated and measured pre-development water levels in this model was...
A dual-porosity model for simulating solute transport in oil shale
K. C. Glover
1987, Water-Resources Investigations Report 86-4047
A model is described for simulating three-dimensional groundwater flow and solute transport in oil shale and associated geohydrologic units. The model treats oil shale as a dual-porosity medium by simulating flow and transport within fractures using the finite-element method. Diffusion of solute between fractures and the essentially static water of...
Source of salts in the Waianae part of the Pearl Harbor aquifer near Barbers Point water tunnel, Oahu, Hawaii
P. R. Eyre
1987, Water-Resources Investigations Report 87-4247
The salinity of the water supply of Barbers Point Naval Air Station has increased markedly since 1983. The Naval Air Station obtains its water, about 3 million gal/day, from Barbers Point shaft, a water shaft that taps the Waianae part of the Pearl Harbor aquifer underlying the dry, southeastern flank...
Hydrogeology and ground-water quality of the northern part of the Town of Oyster Bay, Nassau County, New York, in 1980
Chabot Kilburn, R.K. Krulikas
1987, Water-Resources Investigations Report 85-4051
This report presents geohydrologic and water quality data from the northern part of the Town of Oyster Bay, in the north-shore area of Long Island. The groundwater reservoir underlying the area consists of clay, silt, sand, and gravel layers that form six geohydrologic units; from bottom to top: the Lloyd...
Water quality of Cedar Creek reservoir in northeast Texas, 1977 to 1984
Norman F. Leibbrand, Willard J. Gibbons
1987, Water-Resources Investigations Report 87-4231
Water in Cedar Creek Reservoir in northeast Texas had volume-weighted average concentrations of less than 140 milligrams per liter of dissolved solids, less than 30 milligrams per liter of dissolved sulfate, and less than 25 milligrams per liter of chloride between vh nuary 1977 and August 1984. The water was...
Geohydrology and susceptibility of major aquifers to surface contamination in Alabama; area 9
R. E. Kidd
1987, Water-Resources Investigations Report 87-4187
This report delineates and describes the geohydrology and susceptibility of the major aquifers to contamination in Area 9 - Barbour, Bullock, Macon, Pike, and Russell Counties. The major aquifers in the study area are the Tuscaloosa, Eutaw, and Providence-Ripley aquifers of Cretaceous age; and the Nanafalia-Clayton aquifer of Tertiary age....
Three-dimensional model simulation of transient ground-water flow in the Albuquerque-Belen Basin, New Mexico
J. M. Kernodle, Ryan S. Miller, W. B. Scott
1987, Water-Resources Investigations Report 86-4194
A three-dimensional digital model that simulates transient flow in the alluvial aquifer system underlying the Albuquerque-Belen Basin, New Mexico, was constructed as part of a regional aquifer study of the southwest alluvial basins. The model simulates hydraulic heads and changes in hydraulic heads for 1907 to 1979. Hydraulic-conductivity values used...
Ground-water flow and quality near Canon City, Colorado
G. A. Hearne, D. W. Litke
1987, Water-Resources Investigations Report 87-4014
Water in aquifers that underlie the Lincoln Park area near Canon City, Colorado, contains measurable concentrations of chemical constituents that are similar to those in raffinate (liquid waste) produced by a nearby uranium ore processing mill. The objective of this study was to expand the existing geohydrologic data base by...
Statistical analysis relating well yield to construction practices and siting of wells in the Piedmont and Blue Ridge provinces of North Carolina
C.C. Daniel
1987, Water-Resources Investigations Report 86-4132
A statistical analysis was made of data from more than 6,200 water wells drilled in the fractured crystalline rocks of the Blue Ridge, Piedmont, and western edge of the Coastal Plain where crystalline rocks underlie sediments at shallow depths. The study area encompassed 65 countries in western North Carolina, an...
Effects of coal strip mining on stream water quality and biology, southwestern Washington
L. A. Fuste, D. F. Meyer
1987, Water-Resources Investigations Report 86-4056
Strip mining for coal in southwestern Washington may be affecting the water quality of streams. To investigate these possible effects, five streams were selected for study of water quality in each of the two coal bearing areas: the Centralia-Chehalis coal district, and Kelso-Castle Rock coal area. In the Centralia-Chehalis coal...
Hydrogeology, chemical quality, and availability of ground water in the Upper Floridan aquifer, Albany area, Georgia
D.W. Hicks, H.E. Gill, S.A. Longsworth
1987, Water-Resources Investigations Report 87-4145
Large withdrawals of groundwater in the 1500 sq mi Albany area of southwestern Georgia have lowered water levels in deep aquifers as much as 140 ft. This study was conducted to evaluate the development potential of the shallow Upper Floridan aquifer as an alternate source of groundwater, especially for public...
Simulation of the ground-water flow system and proposed withdrawals in the northern part of Vekol Valley, Arizona
K.J. Hollett, J.R. Marie
1987, Water-Resources Investigations Report 86-4340
Pursuant to the Ak-Chin Indian Community Water Rights Settlement Act (Public Law 95-328-enacted on July 28, 1978) a study was undertaken to assess the effect of proposed groundwater withdrawal from Federal lands near the reservation. The first area to be evaluated was the northern part of the Vekol Valley. The...
Movement of ground water in coal-bearing rocks near Fishtrap Lake in Pike County, Kentucky
R. W. Davis
1987, Water-Resources Investigations Report 87-4084
Eight test holes were core-drilled from various altitudes in a typical coal-bearing sequence rocks of Pennsylvania age in Pike County, eastern Kentucky. Vertical fractures were common in cores from shallow depths, but became less common or absent toward the bottom of two test holes drilled 400 and 291 ft deep....
A computer program for geochemical analysis of acid-rain and other low-ionic-strength, acidic waters
P.A. Johnsson, D. G. Lord
1987, Water-Resources Investigations Report 87-4095-A
ARCHEM, a computer program written in FORTRAN 77, is designed primarily for use in the routine geochemical interpretation of low-ionic-strength, acidic waters. On the basis of chemical analyses of the water, and either laboratory or field determinations of pH, temperature, and dissolved oxygen, the program calculates the equilibrium distribution of...
Water-quality data-collection activities in Oregon; inventory and evaluation of 1984 programs and costs
T.K. Edwards
1987, Water-Resources Investigations Report 86-4346
Estimation of streamflow characteristics and assessment of trends in the Niobrara River at Mariaville, Nebraska
E.E. Fischer
1987, Water-Resources Investigations Report 87-4073
A computer model was used to synthesize a long-term streamflow record for the Niobrara River at Mariaville, Nebraska. The record was developed on the basis of 30-plus years of streamflow data from 3 upstream sites, and the U. S. Geological Survey 's CONROUT model was calibrated using 294 days of...
Distribution and movement of trichloroethylene in ground water in the Tucson area, Arizona
S. A. Leake, R. T. Hanson
1987, Water-Resources Investigations Report 86-4313
In 1981, investigations of groundwater quality around Tucson International Airport revealed a number of wells that pumped water contaminated with trichloroethylene. Subsequent investigations resulted in the delineation of three distinct areas of contamination, the largest of which encompasses about 5 sq mi of aquifer surface area. Most of the contamination...
Ground-water pumpage from the Columbia Plateau Regional Aquifer System, Oregon, 1984
C. A. Collins
1987, Water-Resources Investigations Report 86-4211
Groundwater pumpage was estimated for 1984 for an area of about 8,000 sq mi in north-central Oregon. Pumpage data were collected from irrigation, industrial and public supply users and analyzed as part of the Columbia Plateau Regional Aquifer System Analysis (RASA) study. Groundwater is pumped from Tertiary basalts and interflow...
Hydrologic conditions and trends in Shenandoah National Park, Virginia, 1983-84
Dennis D. Lynch
1987, Water-Resources Investigations Report 87-4131
No abstract available. ...
Simulation of the effect of U.S. Highway 90 on Pearl River floods of April 1980 and April 1983 near Slidell, Louisiana
J. J. Gilbert, D. C. Froehlich
1987, Water-Resources Investigations Report 85-4286
No abstract available....
Effects on water quality due to flood-water detention by Barker and Addicks Reservoirs, Houston, Texas
Fred Liscum, R.L. Goss, E.M. Paul
1987, Water-Resources Investigations Report 86-4356
The Barker and Addicks Reservoirs, located about 16 miles west of Houston, Texas, provide flood-detention storage for storm runoff. Of interest are the water-quality characteristics in the study area and changes in water quality during detention. Study area sampling sites were selected upstream along Buffalo Bayou for Barker Reservoir and...
