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Page 1847, results 46151 - 46175

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Not all publications have extents, not all extents are completely accurate
Documentation of computer programs to compute and display pathlines using results from the U.S. Geological Survey modular three-dimensional finite-difference ground-water flow model
David W. Pollock
1989, Open-File Report 89-381
A particle tracking post-processing package was developed to compute three-dimensional path lines based on output from steady-state simulations obtained with the U.S. Geological Survey modular 3-dimensional finite difference groundwater flow model. The package consists of two FORTRAN 77 computer programs: (1) MODPATH, which calculates pathlines, and (2) MODPATH-PLOT, which presents...
Ground-water level data for North Carolina, 1987
Ronald W. Coble, A.G. Strickland, M. Carl Bailey
1989, Open-File Report 89-68
Continuous and periodic measurements in 54 key wells and water-level measurements emplaced in Coastal Plain aquifers across North Carolina in 193 supplemental wells are presented in this report. Hydrographs of selected wells show changes in ground-water storage in the State. The water table in the shallow aquifers was higher throughout...
Statistical summary of streamflow data for Indiana
Donald V. Arvin
1989, Open-File Report 89-62
Statistical analyses of daily mean discharge values collected at 229 Indiana streamflow-gaging stations are presented. For each station, data collected from the beginning of period of record through the 1985 water year were analyzed. Summaries include flow-duration, high-flow, and low-flow tables, and monthly and annual mean discharge. (USGS)...
The U.S. Geological Survey Federal-State Cooperative Water- Resources Program: Fiscal Year 1988
Bruce K. Gilbert, William B. Mann IV
1989, Open-File Report 89-389
The Federal-State Cooperative Program is a partnership between the U.S. Geological Survey and State and local agencies. It provides a balanced approach to the study and resolution of water-related problems and to acquiring hydrologic data. The principal program objectives are to: (1) collect, on a systematic basis, data needed for...
Texture and depositional history of near-surface alluvial deposits in the central part of the western San Joaquin Valley, California
Julie Laudon, Kenneth Belitz
1989, Open-File Report 89-235
Saline conditions and associated high levels of selenium and other soluble trace elements in soil, shallow ground water, and agricultural drain water of the western San Joaquin Valley, California, have prompted a study of the texture of near-surface alluvial deposits in the central part of the western valley. Texture is...
Water-resources activities of the U.S. Geological Survey in Illinois, 1988
1989, Open-File Report 89-31
This report gives an overview of U.S. Geological Survey, Illinois District, Water Resources Division activities related to the water resources of the State of Illinois. The report includes sections describing District organization, programs, water conditions, data collection activities, and project summaries. Also included is a complete listing of District and...
Indexes of hydrologic data from selected coal-mining areas in northwestern Colorado
N. G. Gaggiani
1989, Open-File Report 88-347
Currently (1988), data from hydrologic studies related to coal mining that have been done in northwestern Colorado since the early 1970 's are stored in the files of private companies and government offices and in various computer systems. To compile these data for additional research, a trip to each office...
Geology and water resources of Owens Valley, California
Kenneth J. Hollett, W.R. Danskin, W. F. McCaffrey, C.L. Walti
1989, Open-File Report 88-715
Owens Valley, a long, narrow valley located along the east flank of the Sierra Nevada in east-central California, is the main source of water for the city of Los Angeles. The city diverts most of the surface water in the valley into the Owens River-Los Angeles Aqueduct system, which transports...
Geohydrologic aspects for siting and design of low-level radioactive-waste disposal
M. S. Bedinger
1989, Circular 1034
The objective for siting and design of low-level radioactive-waste repository sites is to isolate the waste from the biosphere until the waste no longer poses an unacceptable hazard as a result of radioactive decay. Low-level radioactive waste commonly is isolated at shallow depths with various engineered features to stabilize the...
Determination of stream reaeration coefficients by use of tracers
F. A. Kilpatrick, R. E. Rathbun, Nobuhiro Yotsukura, G.W. Parker, L. L. DeLong
1989, Techniques of Water-Resources Investigations 03-A18
Stream reaeration is the physical absorption of oxygen from the atmosphere by a flowing stream. This is the primary process by which a stream replenishes the oxygen consumed in the biodegradation of organic wastes. Prior to 1965, reaeration rate coefficients could be estimated only by indirect methods. In 1965, a direct...
Methods for collection and analysis of aquatic biological and microbiological samples
L. J. Britton, P. E. Greeson, editor(s)
1989, Techniques of Water-Resources Investigations 05-A4
The series of chapters on techniques describes methods used by the U.S. Geological Survey for planning and conducting water-resources investigations. The material is arranged under major subject headings called books and is further subdivided into sections and chapters. Book 5 is on laboratory analysis. Section A is on water. The...
National and regional trends in water-well drilling in the United States, 1964-84
S. M. Hindall, Michael Eberle
1989, Circular 1029
Information on national and regional water-well drilling activity is important for water-resource planning and management and for water-related equipment marketing. This report describes a study to analyze drilling trends on the basis of data for selected years from 1964 through 1984. The study focused primarily on the years 1964 and...
Measurement of time of travel in streams by dye tracing
F. A. Kilpatrick, James F. Wilson
1989, Techniques of Water-Resources Investigations 03-A9
The use of fluorescent dyes and tracing techniques provides a means for measuring the time-of-travel and dispersion characteristics of steady and gradually varied flow in streams. Measurements of the dispersion and concentration of dyes give insight into the behavior of soluble contaminants that may be introduced into a stream. This manual describes methods of measuring time...
Application of drilling, coring, and sampling techniques to test holes and wells
Eugene Shuter, Warren E. Teasdale
1989, Techniques of Water-Resources Investigations 02-F1
The purpose of this manual is to provide ground-water hydrologists with a working knowledge of the techniques of test drilling, auger drilling, coring and sampling, and the related drilling and sampling equipment. For the most part, the techniques discussed deal with drilling, sampling, and completion of test holes in unconsolidated...