Statistical analysis relating well yield to construction practices and siting of wells in the Piedmont and Blue Ridge provinces of North Carolina
Charles C. Daniel
1989, Water Supply Paper 2341-A
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 counties in western North Carolina, an...
Use of temperature profiles beneath streams to determine rates of vertical ground-water flow and vertical hydraulic conductivity
Wayne W. Lapham
1989, Water Supply Paper 2337
The use of temperature profiles beneath streams to determine rates of vertical ground-water flow and effective vertical hydraulic conductivity of sediments was evaluated at three field sites by use of a model that numerically solves the partial differential equation governing simultaneous vertical flow of fluid and heat in the Earth....
Quantity and quality of stormwater runoff recharged to the Floridan aquifer system through two drainage wells in the Orlando, Florida, area
E. R. German
1989, Water Supply Paper 2344
No abstract available....
Ground-water conditions in Las Vegas Valley, Clark County, Nevada; part 1 Hydrogeologic Framework
Russell W. Plume
1989, Water Supply Paper 2320-A
This report describes the lithology, thickness, and extent of valley-fill deposits in Las Vegas Valley, Nev. This information will be used to develop a hydraulic model of the valley's ground-water system. Las Vegas Valley is a structural basin formed by bedrock that ranges in age from Precambrian through Miocene. Gravity...
Using geophysical logs to estimate porosity, water resistivity, and intrinsic permeability
Donald G. Jorgensen
1989, Water Supply Paper 2321
Abstract contains content that can not be displayed, please see the publication for abstract...
Sedimentary structures and textures of Rio Orinoco channel sands, Venezuela and Colombia
Edwin Dinwiddie McKee
1989, Water Supply Paper 2326-B
Most sedimentary structures represented in sand bodies of the Rio Orinoco are tabular-planar cross-strata which, together with some wedge-planar cross-strata, are the products of sand-wave deposition. Locally, in areas of river meander where point bars characteristically form, trough structures forming festoon patterns are numerous. At a few localities, sets of...
Estimating soil matric potential in Owens Valley, California
Stephen K. Sorenson, Reuben F. Miller, Michael R. Welch, David P. Groeneveld, Farrel A. Branson
1989, Water Supply Paper 2370-C
Much of the floor of Owens Valley, California, is covered with alkaline scrub and alkaline meadow plant communities, whose existence is dependent partly on precipitation and partly on water infiltrated into the rooting zone from the shallow water table. The extent to which these plant communities are capable of adapting...
Osmotic potential and projected drought tolerance of four phreatophytic shrub species in Owens Valley, California
Peter D. Dileanis, David P. Groeneveld
1989, Water Supply Paper 2370-D
A substantial quantity of the water used by plant communities growing on the floor of Owens Valley, California, is derived from a shallow unconfined aquifer. Fluctuations in the water table caused by ground-water withdrawal may result in periods when this water supply is not accessible to plants. The capacity of...
Alluvial and bedrock aquifers of the Denver Basin — Eastern Colorado's dual ground-water resource
Stanley G. Robson
1989, Water Supply Paper 2302
Large volumes of ground water are contained in alluvial and bedrock aquifers in the semiarid Denver basin of eastern Colorado. The bedrock aquifer, for example, contains 1.2 times as much water as Lake Erie of the Great Lakes, yet it supplies only about 9 percent of the ground water used...
Evaluation of nonpotable ground water in the desert area of southeastern California for powerplant cooling
Anne C. Steinemann
1989, Water Supply Paper 2343
Powerplant siting is dependent upon many factors; in southern California the prevailing physical constraint is water availability. Increasing land-use and other environmental concerns preclude further sites along the coast. A review of available hydrologic data was made of 142 ground-water basins in the southeast California desert area to ascertain if...
Nitrogen dynamics in the tidal freshwater Potomac River, Maryland and Virginia, water years 1979-81
David J. Shultz
1989, Water Supply Paper 2234-J
On an annual basis, river-supplied nitrate is the predominant form of nitrogen supplied to the tidal Potomac River from external sources. Much of the nitrate is associated with high flows that have rapid transit times through the tidal river. The Blue Plains Sewage-Treatment Plant (STP) at Washington, D.C., is the...
Analysis of alternative modifications for reducing backwater at the Interstate Highway 10 crossing of the Pearl River near Slidell, Louisiana
Gregg J. Wiche, J. J. Gilbert, David C. Froehlich, Jonathan K. Lee
1988, Water Supply Paper 2267
In April 1979 and April 1980, major flooding along the lower Pearl River caused extensive damage to homes located on the flood plain in the Slidell, Louisiana, area. In response to questions about causes of these floods and means of mitigating future floods, the U.S. Geological Survey, in cooperation with...
National water summary 1986: Hydrologic events and ground-water quality
United States Geological Survey
1988, Water Supply Paper 2325
Ground water is one of the most important natural resources of the United States and degradation of its quality could have a major effect on the welfare of the Nation. Currently (1985), ground water is the source of drinking water for 53 percent of the Nation's population and for more...
The Spokane aquifer, Washington: its geologic origin and water-bearing and water-quality characteristics
Dee Molenaar
1988, Water Supply Paper 2265
The Spokane aquifer is an unconfined aquifer consisting of coarse sand, gravel, cobbles, and boulders deposited during several catastrophic glacial outburst floods--known as the Spokane Floods---of Pleistocene time. The aquifer is one of the most productive in the United States, and, as the only significant source of good-quality water supply...
Tritium migration from a low-level radioactive-waste disposal site near Chicago, Illinois
J.R. Nicholas, R. W. Healy
1988, Water Supply Paper 2333
This paper describes the results of a study to determine the geologic and hydrologic factors that control migration of tritium from a closed, low-level radioactive-waste disposal site. The disposal site, which operated from 1943 to mid1949, contains waste generated by research activities at the world's first nuclear reactors. Tritium has...
The geochemical evolution of aqueous sodium in the Black Creek Aquifer, Horry and Georgetown counties, South Carolina
Allen L. Zack, Ivan Roberts
1988, Water Supply Paper 2324
The Black Creek aquifer contains dilute seawater near the North Carolina State line, probably the result of incomplete flushing of ancient seawater. Data do not indicate that the dilute seawater has migrated toward areas of fresh ground-water withdrawals. The concentration of chloride in ground-water samples ranges from 5 to 720...
Specific conductance; theoretical considerations and application to analytical quality control
Ronald L. Miller, Wesley L. Bradford, Norman E. Peters
1988, Water Supply Paper 2311
This report considers several theoretical aspects and practical applications of specific conductance to the study of natural waters. A review of accepted measurements of conductivity of secondary standard 0.01 N KCl solution suggests that a widely used algorithm for predicting the temperature variation in conductivity is in error. A new...
Urban stormwater runoff: Selected background information and techniques for problem assessment, with a Baltimore, Maryland case study
Gary T. Fisher, Brian G. Katz
1988, Water Supply Paper 2347
No abstract available....
A well system to recover usable water from a freshwater-saltwater aquifer in Puerto Rico
Allen L. Zack
1988, Water Supply Paper 2328
Aquifers in coastal areas of Puerto Rico commonly contain limited quantities of freshwater that occur as a thin layer at the surface of the water table. Many wells have been abandoned because well screens were inadvertently placed in saltwater parts of the aquifer. A scavenger/production well couple that can be...
Application of the two-film model to the volatilization of acetone and t-butyl alcohol from water as a function of temperature
R. E. Rathbun, D. Y. Tai
1988, Water Supply Paper 2318
The two-film model is often used to describe the volatilization of organic substances from water. This model assumes uniformly mixed water and air phases separated by thin films of water and air in which mass transfer is by molecular diffusion. Mass-transfer coefficients for the films, commonly called film coefficients, are...
Hydrology and ecology of the Apalachicola River, Florida : a summary of the river quality assessment
John F. Elder, Sherron D. Flagg, Harold C. Mattraw Jr.
1988, Water Supply Paper 2196-D
During 1979-81, the U.S. Geological Survey conducted a large-scale study of the Apalachicola River in northwest Florida, the largest and one of the most economically important rivers in the State. Termed the Apalachicola River Quality Assessment, the study emphasized interrelations among hydrodynamics, the flood-plain forest, and the nutrient-detritus flow through...
Methods for delineating flood-prone areas in the Great Basin of Nevada and adjacent states
D. E. Burkham
1988, Water Supply Paper 2316
The Great Basin is a region of about 210,000 square miles having no surface drainage to the ocean; it includes most of Nevada and parts of Utah, California, Oregon, Idaho, and Wyoming. The area is characterized by many parallel mountain ranges and valleys trending north-south. Stream channels usually are well...
Dissolved silica in the tidal Potomac River and Estuary, 1979-81 water years
Stephen F. Blanchard
1988, Water Supply Paper 2234-H
The Potomac River at Chain Bridge is the major riverine source of dissolved silica (DSi) to the tidal Potomac River and Estuary. DSi concentrations at Chain Bridge are positively correlated with river discharge; river discharge is an important factor controlling rates of supply, dilution, and residence time. When river flow...
Selected papers in the hydrologic sciences, 1987
Seymour Subitzky, editor(s)
1988, Water Supply Paper 2330
No abstract available....
Leachate migration from an in-situ oil-shale retort near Rock Springs, Wyoming
Kent C. Glover
1988, Water Supply Paper 2322
Hydrogeologic factors influencing leachate movement from an in-situ oil-shale retort near Rock Springs, Wyoming, were investigated through models of ground-water flow and solute transport. Leachate, indicated by the conservative ion thiocyanate, has been observed ? mile downgradient from the retort. The contaminated aquifer is part of the Green River Formation...
