Reconnaissance of geohydrologic areas and 1981 low-flow conditions, Withlacoochee River basin, southwest Florida Water Management District
J. O. Kimrey, Warren Anderson
1987, Water-Resources Investigations Report 86-4203
The Withlacoochee River Basin of the Southwest Florida Water Management District is a management area of about 2030 sq mi in west-central Florida containing large reserves of potable water in the Upper Floridan aquifer. Results of reconnaissance test drilling indicate that the Upper Floridan aquifer may be treated as an...
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...
Hydrogeology and water quality of areas with persistent ground-water contamination near Blackfoot, Bingham County, Idaho
D. J. Parliman
1987, Water-Resources Investigations Report 87-4150
The Groveland-Collins area near Blackfoot, Idaho, has a history of either periodic or persistent localized groundwater contamination. Water users in the area report offensive smell, metallic taste, rust deposits, and bacteria in water supplies. During 1984 and 1985, data were collected to define regional and local geologic, hydrologic, and groundwater...
Relation of water chemistry of the Edwards aquifer to hydrogeology and land use, San Antonio Region, Texas
Paul M. Buszka
1987, Water-Resources Investigations Report 87-4116
Water-chemistry data from the Edwards aquifer for 1976-85, consisting of nearly 1,500 chemical analyses from 280 wells and 3 springs, were used to statistically evaluate relations among ground-water chemistry, hydrogeology, and land use. Five land uses associated with sampled wells were classified on the basis of published information and field...
Documentation of a graphical display program for the saturated- unsaturated transport (SUTRA) finite-element simulation model
W. R. Souza
1987, Water-Resources Investigations Report 87-4245
This report documents a graphical display program for the U. S. Geological Survey finite-element groundwater flow and solute transport model. Graphic features of the program, SUTRA-PLOT (SUTRA-PLOT = saturated/unsaturated transport), include: (1) plots of the finite-element mesh, (2) velocity vector plots, (3) contour plots of pressure, solute concentration, temperature, or...
Application of techniques to identify coal-mine and power-generation effects on surface-water quality, San Juan River basin, New Mexico and Colorado
C. L. Goetz, Cynthia G. Abeyta, E.V. Thomas
1987, Water-Resources Investigations Report 86-4076
Numerous analytical techniques were applied to determine water quality changes in the San Juan River basin upstream of Shiprock , New Mexico. Eight techniques were used to analyze hydrologic data such as: precipitation, water quality, and streamflow. The eight methods used are: (1) Piper diagram, (2) time-series plot, (3) frequency...
Effects of agricultural best-management practices on total phosphorus yields in the Johnson Brook and Lovejoy Pond watersheds, Kennebec County, Maine, 1980-84
Thomas J. Maloney, John W. Sowles
1987, Water-Resources Investigations Report 87-4118
Analysis of daily phosphorus yield and streamflow data collected before and after implementation of agricultural best management practices in the Johnson Brook watershed in south-central Maine indicated statistically significant reductions in phosphorus loading in all flow categories. Reduction of median loadings for five flow categories ranged from 26% to 90%....
Surface-geophysical investigations in Melton Valley, Oak Ridge Reservation, Tennessee
Patrick Tucci
1987, Water-Resources Investigations Report 87-4184
Surface geophysical methods were found to be valuable for refining knowledge of the geohydrology of Melton Valley, an area used for burial of low-level radioactive waste at the Oak Ridge Reservation in Tennessee. The valley is characterized by locally complex geologic structures in lithologies of interbedded shale and limestone. Radionuclides...
Overview of surface-water quality in Ohio's coal regions
Susan Westover, Michael Eberle
1987, Water-Resources Investigations Report 84-4061
This report is designed to provide the nontechnical audience with some of the results of an 'Assessment of Water Quality in Streams Draining Coal-Producing Areas in Ohio,' by Christine L. Pfaff and others (published by the U.S. Geological Survey in 1981). The purpose of the assessment was to document the...
Cost-effectiveness of the stream-gaging program in Maryland, Delaware, and the District of Columbia
David H. Carpenter, R.W. James Jr., D.F. Gillen
1987, Water-Resources Investigations Report 87-4093
This report documents the results of a cost-effectiveness study of the stream-gaging program in Maryland, Delaware, and the District of Columbia. Data uses and funding sources were identified for 99 continuously operated stream gages in Maryland , Delaware, and the District of Columbia. The current operation of the program requires...
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...
Water-quality assessment of Arvada Reservoir, Denver metropolitan area, Colorado
L. J. Britton, N. G. Gaggiani
1987, Water-Resources Investigations Report 87-4107
Water quality data were collected from Arvada Reservoir, Colorado, and from its major inflows, Ralston Creek and Croke Canal, to assess the water quality of the reservoir, to evaluate the effect of water from various sources on the reservoir, and to estimate the trophic state of the reservoir. Data were...
Water levels, chloride concentrations, and pumpage in the coastal aquifers of Delaware and Maryland
D. J. Phelan
1987, Water-Resources Investigations Report 87-4229
The Manokin, Ocean City, Pocomoke, and unconfined aquifers of coastal Delaware and Maryland are susceptible to saltwater intrusion from inland movement of offshore water, and from vertical leakage from the bays and deeper aquifer. Comparison of data for water levels, chloride, and pumpage affected during 1974-86 shows that, with the...
Simulation of unsteady flow in the Milwaukee Harbor Estuary at Milwaukee, Wisconsin
L. B. House
1987, Water-Resources Investigations Report 86-4050
This report describes the application and results of an unsteady-flow model for the Milwaukee Harbor Estuary. The model simulates unsteady and upstream flow occurring in the estuary as a result of Lake Michigan Seiche. The discharge computed by the model indicates that upstream flow occurs throughout the estuary during periods...
Cenozoic stratigraphy and geologic history of the Tucson Basin, Pima County, Arizona
S. R. Anderson
1987, Water-Resources Investigations Report 87-4190
This report was prepared as part of a geohydrologic study of the Tucson basin conducted by the U.S. Geological Survey in cooperation with the city of Tucson. Geologic data from more than 500 water supply and test wells were analyzed to define characteristics of the basin sediments that may affect...
An assessment of low flows in streams in northeastern Wyoming
G.W. Armentrout, J.F. Wilson
1987, Water-Resources Investigations Report 85-4246
Low flows were assessed and summarized in the following basins in northeastern Wyoming: Little Bighorn, Tongue, Powder, Little Missouri, Belle Fourche, Cheyenne, and Niobrara River, and about 200 river miles of the North Platte River and its tributaries. Only existing data from streamflow stations and miscellaneous observation sites during the...
Surface-water hydrology of the Western New York Nuclear Service Center Cattaraugus County, New York
W. M. Kappel, W. E. Harding
1987, Water-Resources Investigations Report 85-4309
Precipitation data were collected from October 1980 through September 1983 from three recording gages at the Western New York Nuclear Service Center, and surface water data were collected at three continuous-record gaging stations and one partial-record gage on streams that drain a 0.7 sq km part of the site. Seepage...
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...
Traveltime, reaeration, and water-quality characteristics during low-flow conditions in Wilsons Creek and the James River near Springfield, Missouri
W.R. Berkas
1987, Water-Resources Investigations Report 87-4074
Before upgrading the Southwest Wastewater-Treatment Plant near Springfield, Missouri, to tertiary treatment, adverse water quality conditions resulting from discharge of wastewater effluent to Wilson Creek were documented in the creek and in the James River. About 7 years after the upgrading of the treatment plant, traveltime, reaeration, and water quality...
Water resources and potential effects of surface coal mining in the area of the Woodson Preference Right Lease Application, Montana
M. R. Cannon
1987, Water-Resources Investigations Report 87-4027
Federal coal lands of the Woodson Preference Right Lease Application are located in Dawson and Richland Counties, northeastern Montana. A probable mine area, comprised of the lease area and adjacent coal lands, contains about 220 million tons of recoverable lignite coal in the 12-37 ft thick Pust coal bed. A...
Ground-water resources of Jones County, Mississippi
E. H. Boswell, G.A. Bednar, Daphne Darden
1987, Water-Resources Investigations Report 85-4342
Jones County, Mississippi, is supplied with groundwater from aquifers in strata of Eocene and younger age. The largest groundwater withdrawals are from aquifers in the Catahoula Sandstone of the Miocene aquifer system that occur at depths of 200 and 400 ft in the Laurel area. Several public and industrial water...
Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984
M. H. Brooks, L.J. Schroder, T. C. Willoughby
1987, Water-Resources Investigations Report 87-4050
The U.S. Geological Survey operated a blind audit sample program during 1974 to test the effects of the sample handling and shipping procedures used by the National Atmospheric Deposition Program and National Trends Network on the quality of wet deposition data produced by the combined networks. Blind audit samples, which...
Cost effectiveness of the US Geological Survey stream-gaging program in Alabama
H.H. Jeffcoat
1987, Water-Resources Investigations Report 86-4336
A study of the cost effectiveness of the stream gaging program in Alabama identified data uses and funding sources for 72 surface water stations (including dam stations, slope stations, and continuous-velocity stations) operated by the U.S. Geological Survey in Alabama with a budget of $393,600. Of these , 58 gaging...
Preliminary assessment of water quality in the alluvial aquifer of the Puerco River basin, Northeastern Arizona
R. H. Webb, G.R. Rink, D. B. Radtke
1987, Water-Resources Investigations Report 87-4126
The quality of groundwater in the alluvial aquifer of the Puerco River basin, northeastern Arizona, was evaluated in order to assess potential contamination from uranium mining and milling operations in New Mexico. A total of 14 wells and 1 spring were sampled to determine if a contaminant plume of radionuclides...
Documentation of computer program VS2D to solve the equations of fluid flow in variably saturated porous media
E.G. Lappala, R. W. Healy, E.P. Weeks
1987, Water-Resources Investigations Report 83-4099
This report documents FORTRAN computer code for solving problems involving variably saturated single-phase flow in porous media. The flow equation is written with total hydraulic potential as the dependent variable, which allows straightforward treatment of both saturated and unsaturated conditions. The spatial derivatives in the flow equation are approximated by...
