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Explore Search: Unconsolidated Aquifers

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Program
photo of 5 Long Island core samples

Long Island Hydrogeologic Units

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Altitude and configuration of the water table in the High Plains Aquifer in Kansas, 1965

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Sources of sulfate supporting anaerobic metabolism in a contaminated aquifer

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Ground-water flow and quality in Wisconsin's shallow aquifer system

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Contamination potential in the Silurian Dolomite aquifer, eastern Wisconsin

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Hydrochemical Regions of the Glacial Aquifer System, Northern United States, and Their Environmental and Water-Quality Characteristics

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Altitude and configuration of the water table in the High Plains aquifer in Kansas, 1980

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Altitude and configuration of the water table in the High Plains Aquifer in Kansas, 1970

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Hydrogeology and simulation of flow between the alluvial and bedrock aquifers in the upper Black Squirrel Creek basin, El Paso County, Colorado

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Contamination in fractured-rock aquifers: Research at the former Naval Air Warfare Center, West Trenton, New Jersey

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Use of Numerical Models to Simulate Transport of Sewage-Derived Nitrate in a Coastal Aquifer, Central and Western Cape Cod, Massachusetts

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Conjunctive-use optimization model and sustainable-yield estimation for the Sparta aquifer of southeastern Arkansas and north-central Louisiana

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Geology and hydrogeology of the Caribbean Islands aquifer system of the Commonwealth of Puerto Rico and the U.S. Virgin Islands

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Guide for data collection to calibrate a predictive digital ground-water model of the unconfined aquifer in and near the city of Modesto, California

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Review of the general geology and solid-phase geochemical studies in the vicinity of the Central Oklahoma aquifer

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Hydrogeology of the Southeastern Coastal Plain aquifer system in Mississippi, Alabama, Georgia, and South Carolina

Project
multicolored map of aquifers in Tompkins county NY

Geohydrology of the Valley-Fill Aquifer in the West Branch Cayuga Inlet and Fish Kill Valleys, Town of Newfield, Tompkins County, New York

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Potential for water-quality degradation of interconnected aquifers in west-central Florida

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Groundwater conditions during 2009 and changes in groundwater levels from 1984 to 2009, Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho

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Hydrostatigraphic characterization of coastal aquifer by geophysical log analysis, Cape Cod National Seashore, Massachusetts

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Hydrogeologic characterization of the Coldwater Spring recharge area, Calhoun County, Alabama

Project
Groundwater well casings in Browns Mills study area

Investigations and Technical Assistance to the Joint Base McGuire-Dix-Lakehurst, New Jersey, in Assessing the Distribution and Transport of Perfluorinated Compounds in Groundwater and Surface Water

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Altitude and configuration of the predevelopment water table in the High Plains regional aquifer, northwestern Oklahoma

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Geohydrology of, and nitrogen and chloride in, the glacial aquifer, Milford-Matamoras area, Pike County, Pennsylvania

Presentations and Events

Quality of Our Nation's Groundwater

Data Release
Collage of images of an earthquake, scientists in flood with instruments, a volcano erupting, and seismic illustration.

Estimated Groundwater Withdrawals from Principal Aquifers in the United States--County Level Data for 2015

Data Release
USGS

Chemical Data From 40 Years of Monitoring a Treated-Wastewater Groundwater Plume in a Sand and Gravel Aquifer, Cape Cod, Massachusetts, 1978-2018

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Summary of available hydrogeologic data for the northeast portion of the alluvial aquifer at Louisville, Kentucky

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An aquifer test in the southwestern part of the Louisville area, Kentucky

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A plan to study the aquifer system of the Central Valley of California

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