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Hydrogeology
Study of subsurface waters and geologic aspects of surface waters.
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Results 1 - 37 of 37 listed by similarity [list alphabetically]
Geology and hydrogeology of the Florida Keys [More info]
Article on geology and hydrogeology of the Florida Keys with sections on Holocene and Pleistocene geology, water resources, and introduction with a brief history and overview of early studies.
Borehole geophysics as applied to geohydrology [More info]
Project summary, photos of logging truck, and bibliographies on log interpretation techniques and instrumentation to record geophysical data in wells and test holes for studying ground water hydraulics and evaluate waste disposal sites.
PDF Evolution of 3-D geologic framework modeling and its application to groundwater flow studies [More info]
Methods to depict the connectedness of rock units across fault and fracture zones, allowing us to determine the distribution of geologic units, structural features, and other controlling factors, such as porosity and permeability.
An interpretation of the 1977 Airborne Electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona [More info]
Complex report on the interpretation of aeromagnetic data to study hydrogeology of the San Pedro basin, Cochise County, Arizona determining geologic structure, basin fill and depth to water. Online version of a CD-ROM publication.
Aquifer basics [More info]
Links to general information on water supply by aquifers based on rock types and to principal national aquifers by name.
Biogeochemical and geohydrologic processes in a landfill-impacted alluvial aquifer, Norman, Oklahoma [More info]
Discussion and links to research for the multi-disciplinary investigation on the Norman Landfill located on alluvium associated with the Canadian River in central Oklahoma.
BRASS: Bedrock Regional Aquifer Systematics Study [More info]
Description of the project to publish new bedrock geologic maps in the United States to advance the understanding of the region's bedrock aquifers. Includes list of projects.
Contamination in Fractured Rock Aquifers [More info]
Overview of fractured rock research aimed at understanding the movement of water through fracture networks, and characterize field conditions influencing contaminant migration. Includes programs and publications.
PDF Devils Hole, Nevada--A Primer [More info]
Explains the important paleoclimatic information we have obtained from this subaqueous cavern. The time-series data show important contrasts with what would be predicted from orbital theory, provoking extensive scientific discussion.
PDF Drilling a deep geologic test well at Hilton Head Island, South Carolina [More info]
With the South Carolina Department of Health and Environmental Control, USGS is drilling a deep geologic test well to learn about the regional Floridan aquifer, which provides groundwater to the Hilton Head area.
Edwards Aquifer online resources [More info]
Recharge and discharge summaries and other data, aeromagnetic survey map, and publications on Edwards Aquifer, Texas.
Geographic Information Systems (GIS) in Missouri [More info]
Website with links to USGS hydrologic, geohydrologic, soil, and geologic projects in Missouri using geographic information systems (GIS) technology with digital datasets of images, models, and maps produced by the projects to view.
Ground water atlas of the United States [More info]
The U.S. ground water atlas consists of information on ground water resources of 13 regions covering the 50 States, Puerto Rico, and the U.S. Virgin Islands. Text and maps can be viewed online and downloaded as ASCII, GIF, and *.eps files.
PDF Ground-water availability in the United States [More info]
Report examines what is known about the Nation's ground-water availability, and outlines a program of study to improve our understanding of ground-water availability in major aquifers across the Nation. With regional examples.
Ground-water monitoring for pesticides in Wyoming [More info]
Sampling program to determine if pesticides are present in ground water, in accordance with Wyoming's Generic State Management Plan for Pesticides in Ground Water (SMP).
Ground-water recharge in the arid and semiarid southwestern United States [More info]
A systematic presentation of climatic and hydrogeologic framework of the area, regional analysis of ground-water recharge, and an overview of 8 site-specific case studies.
High Plains aquifer resources and information [More info]
Links to reports, bibliographies, and other information on the High Plains aquifer.
Hydrogeologic framework of Antelope Valley and Bedell Flat, Washoe County, west-central Nevada [More info]
Description of the hydrogeologic framework of Antelope Valley and Bedell Flat in west-central Nevada north of Reno-Sparks area. Gravimetric and seismic-refraction methods were used in the study. Report available in PDF format or HTML format.
Investigating the Chesapeake Bay impact crater [More info]
Links to information on the formation and structure of Chesapeake Bay including online reports, recent field work, field work archives, cooperating agencies, bibliography, and links to articles about other terrestrial impact craters.
Kentucky District - program highlights [More info]
Brief descriptions of research programs in water resources in Kentucky with a few links to program websites. Programs include data collection projects, acid mine drainage, hydrodynamics, geology, waste site cleanup and hydrogeology.
Land subsidence and aquifer-system compaction in the Tucson Active Management Area, south-central Arizona, 1987-2005 [More info]
Results of ground-surface monitoring and borehole water table measurements document subsidence of the land surface correlative with changes in the ground water.
Land Subsidence in the United States [More info]
Describes and provides examples of impacts of human-induced land subsidence resulting from the extraction of subsurface water, including aquifer-system compaction, drainage of organic soils, dissolution and collapse of susceptible rocks.
Land Subsidence in the United States [More info]
Describes and provides several detiled examples of impacts of human-induced land subsidence resulting from the extraction of subsurface water, including aquifer-system compaction, drainage of organic soils, dissolution and collapse of susceptible rocks.
Major aquifers in New Jersey [More info]
Geologic description of the principal coastal and non-coastal aquifers in New Jersey and relationship to water quality and water supply.
Major drainage basins in Massachusetts and Rhode Island [More info]
Location and geology of drainage basins in Massachusetts and Rhode Island.
Minnesota water-resources projects [More info]
Links to descriptions of research projects on water resources in Minnesota listed by project number.
New Jersey District - ground water information [More info]
Links to New Jersey ground-water data including hydrogeology with a geologic map and description of major aquifers, water levels including real-time data and drought levels, and water-quality information.
Pacific Northwest geologic mapping and urban hazards [More info]
Overview of the Pacific Northwest Urban Corridor Geologic Mapping Program concerned with geology and urban hazards with links to online geologic maps, current research, publications, and contacts.
Pennsylvania downloadable spatial data (GIS data files) [More info]
Pennsylvania digital data for watershed boundaries, county geology, and flood mapping in Arc/Info format compressed with gzip utility for downloading plus links to other sources of data.
Pennsylvania fractured rock hydrology research [More info]
Links to reports for Pennsylvania on borehole geophysical studies, aquifer tests and properties, modeling, and hydrologic effects of an earthquake with links to MOC3D solute transport software package, program mission, and bibliography.
Unconsolidated aquifers of upstate New York [More info]
Information on aquifers in upstate New York which consist of unconsolidated deposits of sand and gravel that occupy major river and stream valleys or lake plains. Links to aquifer maps at scales 1:24,000 or 1:250,000 and cooperative publications.
Unsaturated-Zone Flow Project [More info]
Overview of research to measure, predict, and understand the flow of water through soil and rock between the land surface and the water table with links to field sites, laboratory methods, theoretical developments, publications, and personnel.
USGS / Department of Energy cooperative studies in Nevada [More info]
Describes cooperation of the USGS office in Las Vegas, Nevada, with the Department of Energy to address environmental and scientific issues at the Nevada Test Site and vicinity with links to project information.
Water resources of Michigan - programs and projects [More info]
Brief descriptions of categories of USGS research programs and projects on water resources in Michigan with links to more detailed information on projects.
Water resources of North Carolina - current district projects [More info]
Links to description, publications, data, and maps for research projects on North Carolina water resources.
Water science for schools: the Earth's water - ground water [More info]
Educational site for elementary schools students on ground water sources, ground water flow, and aquifers.
Water-Level Changes in the High Plains Aquifer, Predevelopment to 2002, 1980 to 2002, and 2001 to 2002 [More info]
Data from some 7,000 wells monitoring annual water level changes in the High Plains aquifer indicting changes in water level 1980 to 2002.
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