Simulated effects of water exchanges on streamflow and specific conductance in the Arkansas River upstream from Avondale, Colorado
Michael E. Lewis
1999, Water-Resources Investigations Report 98-4140
The potential effects of future water-exchange scenarios on streamflow and specific conductance in the Arkansas River were simulated with two accounting models. The major processes in the models simulated the historical exchange potential in the Arkansas River and the operation of a native and a nonnative Arkansas River water exchange....
Areal studies aid protection of ground-water quality in Illinois, Indiana, and Wisconsin
P.C. Mills, Robert T. Kay, Timothy A. Brown, Douglas J. Yeskis
1999, Water-Resources Investigations Report 98-4143
In 1991, the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, initiated studies designed to characterize the ground-water quality and hydrogeology in northern Illinois, and southern and eastern Wisconsin (with a focus on the north-central Illinois cities of Belvidere and Rockford, and the Calumet region of northeastern...
Ground water and surface water in the Haiku area, East Maui, Hawaii
Stephen B. Gingerich
1999, Water-Resources Investigations Report 98-4142
The Haiku study area lies on the gently sloping eastern flank of the East Maui Volcano (Haleakala) between the drainage basins of Maliko Gulch to the west and Kakipi Gulch to the east. The study area lies on the northwest rift zone of East Maui Volcano, a geologic feature 3...
Design and analysis of tracer tests to determine effective porosity and dispersivity in fractured sedimentary rocks, Newark Basin, New Jersey
Glen B. Carleton, Claire Welty, Herbert T. Buxton
1999, Water-Resources Investigations Report 98-4126-A
No abstract available....
Color infrared digital orthophoto quadrangles for the South Florida ecosystem area
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 163-96
The South Florida Ecosystem Restoration Program is an intergovernmental effort to reestablish and maintain the ecosystems of south Florida. One element of the restoration effort is the development of a firm scientific basis for resource decision making. The U.S. Geological Survey (USGS) is one of the agencies that provides scientific...
Internal surface water flows
Mitchell H. Murray
1999, Fact Sheet 175-96
Introduction The South Florida Ecosystem Restoration Program is an intergovernmental effort to reestablish and maintain the ecosystem of south Florida. One element of the restoration effort is the development of a firm scientific basis for resource decision making.The U.S. Geological Survey (USGS) provides scientitic information as part of the South Florida...
Freshwater discharge to Florida Bay
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 135-96
The South Florida Ecosystem Program is a collaborative effort by Federal agencies, working with State and local agencies, to help resolve land-use demands and water-supply issues in south Florida. The role of the U.S. Geological Survey in the program is to provide scientific insight into south Florida's hydrology and geology,...
South Florida ecosystems; changes through time
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 171-95
Ecosystems are communities of organisms, often including humans, and the associated physical and chemical environments in which they live. Ecosystems are a complex natural resource that need to be understood, carefully managed, and prudently conserved. Human modification of the environment, such as changing water drainage patterns and introducing pollutants (such...
Vertical exchange of ground water and surface water in the Florida Everglades
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 169-96
Introduction and Project ObjectivesKnowledge about hydrologic exchange between surface water and ground water is critical to understanding the movement of water and dissolved chemical constituents (solutes) in the Florida Everglades. This fact sheet describes a study that will quantify vertical exchange of water and solutes in the Everglades as part...
Hydrogeology of the surficial aquifer system in Southwest Florida
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 158-96
Restoration and management of the south Florida ecosystem will be guided by hydrologic models that simulate water flowing through the wetlands and shallow subsurface aquifers beneath them. The restoration of the ecosystem is, essentially, the restoration of the natural hydrologic system. As surface water is re-diverted from manmade canals to...
Sources of springs supplying base flow to the Verde River headwaters, Yavapai County, Arizona
Laurie Wirt, H. W. Hjalmarson
1999, Open-File Report 99-378
Multiple lines of evidence were used to identify source aquifers, quantify their respective contributions, and trace the ground-water flow paths that supply base flow to the uppermost reach of the Verde River in Yavapai County, Arizona. Ground-water discharge via springs provides base flow for a 24-mile long reach from the mouth of Granite Creek (river mile 2.0)...
Processing of seismic tomography data collected at Tunnel 160, Deglen Mountain, Kazakhstan
Karl Ellefsen, William Leith
1999, Open-File Report 99-532
No abstract available....
Lithostratigraphy, geophysics, biostratigraphy, and strontium-isotope stratigraphy of the surficial aquifer system of eastern Collier County and northern Monroe County, Florida
S.D. Weedman, Frederick L. Paillet, Lucy E. Edwards, K. R. Simmons, T.M. Scott, B. R. Wardlaw, R.S. Reese, J.L. Blair
1999, Open-File Report 99-432
In 1997, ten cores were drilled in eastern Collier County and northern Monroe County, within the limits of the Big Cypress National Preserve. These cores represent a continuation of the study of seven cores in western Collier County begun in 1996 and reported in Weedman and others (1997) and Edwards...
Proceedings of Conference on Status of Geologic Research and Mapping, Death Valley National Park
J.L. Slate, editor(s)
1999, Open-File Report 99-153
Welcome to this conference on the “Status of Geologic Research and Mapping in Death Valley National Park.” We organized this conference in an effort to foster communication and increase awareness among parties conducting geologic research in and around the park. Additionally, we hope to assess the status of geologic mapping...
Water use in Arkansas, 1995
Terrance W. Holland
1999, Open-File Report 99-188
As part of the National Water-Use Information Program, the U.S. Geological Survey (USGS) stores water-use data in standardized format for different categories of water use. These data are aggregated by county, 4- and 8-digit hydrologic units, and aquifer in the Aggregated Water-Use Data System (AWUDS). Site-specific water-use data for public...
Bathymetric survey and physical and chemical-related properties of Raccourci Lake, Louisiana, July 1998 and April 1999
Paul A. Ensminger
1999, Water-Resources Investigations Report 99-4292
Raccourci Lake (Old River), an oxbow lake formed from an incomplete cutoff of the Mississippi River in southeast Louisiana, is a popular recreational lake used for water-based activities such as water skiing, fishing, boating, and swimming. The nearness of this large oxbow to Baton Rouge and its continued fishing productivity...
The Silent Canyon caldera complex — A three-dimensional model based on drill-hole stratigraphy and gravity inversion
Edwin H. McKee, Thomas G. Hildenbrand, Megan L. Anderson, Peter D. Rowley, David A. Sawyer
1999, Open-File Report 99-555
The structural framework of Pahute Mesa, Nevada, is dominated by the Silent Canyon caldera complex, a buried, multiple collapse caldera complex. Using the boundary surface between low density Tertiary volcanogenic rocks and denser granitic and weakly metamorphosed sedimentary rocks (basement) as the outer fault surfaces for the modeled collapse caldera...
Loch Vale Watershed Project quality assurance report, 1995-1998
E.J. Allstott, Michael A. Bashkin, Jill Baron
1999, Open-File Report 99-111
The Loch Vale Watershed (LVWS) project was initiated in 1980 by the National Park Service with funding from the Aquatic Effects Research Program of the National Acid Precipitation Assessment Program. Initial research objectives were to understand the processes that would either mitigate or accelerate the effects of pollution on soil...
Selected hydrologic data from the Cedar Rapids area, Linn County, Iowa, April 1996 through March 1999
R.A. Boyd, R.L. Kuzniar, P.M. Schulmeyer
1999, Open-File Report 99-461
The City of Cedar Rapids, Iowa obtains its municipal water supply from four well fields along the Cedar River. The wells are completed at depths of about 60 to 80 feet in a shallow alluvial aquifer adjacent to the Cedar River. The City of Cedar Rapids and the U.S. Geological...
Water resources of the Prairie Island Indian Reservation, Minnesota, 1994-97
Timothy K. Cowdery
1999, Water-Resources Investigations Report 99-4069
This evaluation of the water resources on the Prairie Island Indian Reservation includes data collected from 8 surface-water sites and 22 wells during 1994–97 and historical data. The Mississippi River and the lakes and wetlands connected to it are separated from the Vermillion River and the lakes and wetlands connected...
U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C)
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Water-Resources Investigations Report 99-4018-C
This report contains papers presented at the seventh Technical Meeting of the U.S. Geological Survey (USGS), Toxic Substances Hydrology (Toxics) Program. The meeting was held March 8-12, 1999, in Charleston, South Carolina. Toxics Program Technical Meetings are held periodically to provide a forum for presentation and discussion of results of...
Hydrology and Water Quality of the Oljato Alluvial Aquifer, Monument Valley Area, Utah and Arizona
Larry E. Spangler, M.S. Johnson
1999, Water-Resources Investigations Report 99-4074
The Navajo Indian Reservation in Utah and Arizona is situated in one of the most arid parts of the Western United States. Normal annual precipitation is less than 8 to about 10 in. over much of the region (Cooley and others, 1969). Generally, water supplies for residents on the Reservation...
Distribution of hydrogeologic units in the Black Hills area, South Dakota
Michael L. Strobel, Gregory J. Jarrell, J. Foster Sawyer, John R. Schleicher, Mark D. Fahrenbach
1999, Hydrologic Atlas 743
This report is a product of the Black Hills Hydrology Study, which was initiated in 1990 to assess the quantity, quality, and distribution of surface water and ground water in the Black Hills area of South Dakota (Driscoll, 1992). This long-term study is a cooperative effort between the U.S. Geological...
Geologic and hydrologic data for the municipal solid waste landfill facility, U.S. Army Air Defense Artillery Center and Fort Bliss, El Paso County, Texas
Cynthia G. Abeyta, P. F. Frenzel
1999, Open-File Report 99-271
Geologic and hydrologic data for the Municipal Solid Waste Landfill Facility on the U.S. Army Air Defense Artillery Center and Fort Bliss in El Paso County, Texas, were collected by the U.S. Geological Survey in cooperation with the U.S. Department of the Army. The 106.03-acre landfill has been in operation...
pick_xwell, a program for interactive picking of crosswell seismic and radar data
K.J. Ellefsen
1999, Open-File Report 99-534
Program 'pick_xwell' is used to interactively pick travel times in crosswell seismic and radar data. In addition, the traces and the travel times can be plotted on the computer screen or printed to a file in postscript format. The program is written in the IDL programming language, and it is executed,...
