Digital map of areas of little or no saturated thickness for the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
Joel R. Cederstrand, Mark F. Becker
1999, Open-File Report 99-266
This report contains digital data and accompanying documentation for boundaries of areas of little or no saturated thickness within the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital data set was compiled from a digital coverage that was created...
Digital map of changes in water levels from predevelopment to 1980 for the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
Joel R. Cederstrand, Mark F. Becker
1999, Open-File Report 99-265
This report contains digital data and accompanying documentation for contours of predevelopment to 1980 water-level elevation changes for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital data set was created by digitizing the contours for predevelopment to 1980...
Digital map of aquifer boundary for the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming
Joel R. Cederstrand, Mark F. Becker
1999, Open-File Report 99-267
This report contains digital data and accompanying documentation for aquifer boundaries for the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. This digital data set was compiled from a digital coverage that was created for publication of paper maps in McGrath...
Digital databases containing mining claim density information for Arizona, California, Colorado, Idaho, Montana, Nebraska, New Mexico, Nevada, Oregon, South Dakota, Utah, Washington, and Wyoming created from the BLM mining claim recordation system: 1996
Paul C. Hyndman, Harry W. Campbell
1999, Open-File Report 99-325
No abstract available....
Reconnaissance geologic map of the Duncan Canal-Zarembo Island area, southeastern Alaska
Susan M. Karl, Peter J. Haeussler, Anne E. McCafferty
1999, Open-File Report 99-168
The geologic map of the Duncan Canal-Zarembo Island area is the result of a multidisciplinary investigation of an area where an airborne geophysical survey was flown in the spring of 1997. The area was chosen for the geophysical survey because of its high mineral potential, a conclusion of the Petersburg...
Chemical data and lead isotopic compositions in stream-sediment samples from the Boulder River watershed, Jefferson County, Montana
David L. Fey, Dan M. Unruh, Stan E. Church
1999, Open-File Report 99-575
Metal-mining related wastes in the Boulder River basin study area in northern Jefferson County, Montana, have been evaluated for their environmental effects as a part of the U.S. Geological Survey Abandoned Mine Lands Project. Many mine and prospect waste dumps, and mill wastes are located in the drainage basins of...
Digital Geologic Map of the Nevada Test Site and Vicinity, Nye, Lincoln, and Clark Counties, Nevada, and Inyo County, California
Janet L. Slate, Margaret E. Berry, Peter D. Rowley, Christopher J. Fridrich, Karen S. Morgan, Jeremiah B. Workman, Owen D. Young, Gary L. Dixon, Van S. Williams, Edwin H. McKee, David A. Ponce, Thomas G. Hildenbrand, W. C. Swadley, Scott C. Lundstrom, E. Bartlett Ekren, Richard G. Warren, J. C. Cole, Robert J. Fleck, Marvin A. Lanphere, David A. Sawyer, Scott A. Minor, Daniel J. Grunwald, Randell J. Laczniak, Christopher M. Menges, James C. Yount, Angela S. Jayko
1999, Open-File Report 99-554-A
This digital geologic map of the Nevada Test Site (NTS) and vicinity, as well as its accompanying digital geophysical maps, are compiled at 1:100,000 scale. The map compilation presents new polygon (geologic map unit contacts), line (fault, fold axis, metamorphic isograd, dike, and caldera wall) and point (structural attitude) vector...
Improvements to the DRASTIC ground-water vulnerability mapping method
Michael G. Rupert
1999, Fact Sheet 066-99
Ground-water vulnerability maps are designed to show areas of greatest potential for ground-water contamination on the basis of hydrogeologic and anthropogenic (human) factors. The maps are developed by using computer mapping hardware and software called a geographic information system (GIS) to combine data layers such as land use, soils, and...
Digital data sets of depth-duration frequency of precipitation for Oklahoma
Alan Rea, Robert L. Tortorelli
1999, Open-File Report 99-463
These geospatial data sets were produced as part of a regional precipitation frequency analysis for Oklahoma. The data sets consist of surface grids of precipitation depths for seven frequencies (expressed as recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, and 500-years) and 12 durations (15-, 30-, and 60-minutes; 1-,...
Compilation of geophysical and sedimentological data sets for West-Central Florida Coastal Studies Project
S. D. Locker, G. R. Brooks, A.C. Hines, R. A. Davis, D.C. Twichell, L. J. Doyle
1999, Open-File Report 99-539
National coal resource assessment non-proprietary data: Location, stratigraphy, and coal quality for selected tertiary coal in the Northern Rocky Mountains and Great Plains region
Romeo M. Flores, A.M. Ochs, G. D. Stricker, M.S. Ellis, S. B. Roberts, C. W. Keighin, E.C. Murphy, V.V. Cavaroc Jr., R. C. Johnson, E.M. Wilde
1999, Open-File Report 99-376
One of the objectives of the National Coal Resource Assessment in the Northern Rocky Mountains and Great Plains region was to compile stratigraphic and coal quality-trace-element data on selected and potentially minable coal beds and zones of the Fort Union Formation (Paleocene) and equivalent formations. In order to implement this...
Hydrogeology of the unsaturated zone, North Ramp area of the Exploratory Studies Facility, Yucca Mountain, Nevada
Edward M. Kwicklis, Daniel C. Gillies
Joseph P. Rousseau, Edward M. Kwicklis, Daniel C. Gillies, editor(s)
1999, Water-Resources Investigations Report 98-4050
Yucca Mountain, in southern Nevada, is being investigated by the U.S. Department of Energy as a potential site for a repository for high-level radioactive waste. This report documents the results of surface-based geologic, pneumatic, hydrologic, and geochemical studies conducted during 1992 to 1996 by the U.S. Geological Survey in the...
Sediment accumulation and water volume in Loch Raven Reservoir, Baltimore County, Maryland
William S.L. Banks, Andrew E. LaMotte
1999, Water-Resources Investigations Report 99-4240
Baltimore City and its metropolitan area are supplied with water from three reservoirs, Liberty Reservoir, Prettyboy Reservoir, and Loch Raven Reservoir. Prettyboy and Loch Raven Reservoirs are located on the Gunpowder Falls (figure 1). The many uses of the reservoir system necessitate coordination and communication among resource managers. The 1996...
Hydrogeology and simulation of ground-water flow in the Ohio River alluvial aquifer near Carrollton, Kentucky
Michael D. Unthank
1999, Water-Resources Investigations Report 98-4215
The alluvial aquifer near Carrollton, Kentucky, lies in a valley eroded by glacial meltwater that was later part filled with outwash sand and gravel deposits. The aquifer is unconfined, and ground water flows from the adjacent bedrock-valley wall toward the Ohio River and ground-water withdrawal wells. Ground-water-level and Ohio River...
WTAQ: A Computer Program for Calculating Drawdowns and Estimating Hydraulic Properties for Confined and Water-Table Aquifers
Paul M. Barlow, Allen F. Moench
1999, Water-Resources Investigations Report 99-4225
The computer program WTAQ calculates hydraulic-head drawdowns in a confined or water-table aquifer that result from pumping at a well of finite or infinitesimal diameter. The program is based on an analytical model of axial-symmetric ground-water flow in a homogeneous and anisotropic aquifer. The program allows for well-bore storage and...
Spatial ground-water data base in Carson Valley, Douglas County, Nevada, and Alpine County, California, development and documentation
David L. Berger, Rose L. Medina
1999, Water-Resources Investigations Report 99-4188
Characterization of selected biological, chemical, and physical conditions at fixed sites in the Upper Colorado River basin, Colorado, 1995-98
Jeffrey R. Deacon, Scott V. Mize, Norman E. Spahr
1999, Water-Resources Investigations Report 99-4181
Biological community samples were collected at 15 sites in the Upper Colorado River Basin (UCOL) in Colorado as part of the National Water-Quality Assessment (NAWQA) Program. Sites sampled in two physiographic provinces, the Southern Rocky Mountains and the Colorado Plateau, represented agriculture, mining, urban and recreation, and mixed land uses...
Occurrence, distribution, and trends of volatile organic compounds in the Ohio River and its major tributaries, 1987-96
Robert F. Lundgren, Thomas J. Lopes
1999, Water-Resources Investigations Report 99-4257
The Ohio River is a source of drinking water for more than 3 million people. Thus, it is important to monitor the water quality of this river to determine if contaminants are present, their concentrations, and if water quality is changing with time. This report presents an analysis of the...
Stream water-quality characteristics and trends, James River basin, North Dakota, 1949-95
Mark E. Brigham, G. A. Payne
1999, Water-Resources Investigations Report 99-4187
Water-quality data collected at 16 water-quality-sampling sites in the James River Basin during 1949-95 were statistically summarized. Analysis of variance of data ranks was used to make comparisons among sites for selected constituents that had 20 or more analyses per site. Statistically significant differences among sites were indicated for specific...
Biological assessment of the lower Boise River, October 1995 through January 1998, Ada and Canyon Counties, Idaho
William H. Mullins
1999, Water-Resources Investigations Report 99-4178
The lower Boise River, between Lucky Peak Dam and the mouth of the river near Parma, Idaho, is adversely affected by various land- and water-use activities. To assess the biotic integrity of the river and the effects of environmental perturbations on aquatic community structure, and to provide a baseline from...
Relation of Land Use to Streamflow and Water Quality at Selected Sites in the City of Charlotte and Mecklenburg County, North Carolina, 1993-98
Jerad D. Bales, J. Curtis Weaver, Jerald B. Robinson
1999, Water-Resources Investigations Report 99-4180
Streamflow and water-quality data were collected at nine sites in the city of Charlotte and Mecklenburg County, North Carolina, during 1993–97. Six of the basins drained areas having relatively homogeneous land use and were less than 0.3 square mile in size; the other three basins had mixed land use. Atmospheric...
Generalized water-table and water-level data at the US Air Force plant 42 and vicinity, Palmdale, California, March-April, 1997
Allen H. Christensen
1999, Water-Resources Investigations Report 99-4262
The U.S. Air Force Plant 42 (Plant 42) which is in the Antelope Valley about 1.5 miles northeast of Palmdale and 3 miles southeast of Lancaster in Los Angeles County. Historically, ground water has been the primary source of water owing, in large part, to the scarcity of surface water...
Alaska resource data file: Mount Fairweather quadrangle
C. C. Hawley
1999, Open-File Report 99-334
No abstract available....
Sources and chronology of nitrate contamination in spring waters, Suwannee River basin, Florida
Brian G. Katz, H.D. Hornsby, J. K. Bohlke, M.F. Mokray
1999, Water-Resources Investigations Report 99-4252
A multi-tracer approach, which consisted of analyzing water samples for n aturally occurring chemical and isotopic indicators, was used to better understand sources and chronology of nitrate contamination in spring wate rs discharging to the Suwannee and Santa Fe Rivers in northern Florida. Dur ing 1997 and 1998, as part...
Alaska resource data file: Tanacross quadrangle
Cheryl Cameron
1999, Open-File Report 99-358
No abstract available....
