sand, or silt). Aquifers vary greatly in their characteristics. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology...

The Ogallala Aquifer (oh-gə-LAH-lə) is a shallow water table aquifer surrounded by sand, silt, clay, and gravel located beneath the Great Plains in the...

pressure within a body of rock and/or sediment known as an aquifer. When trapped water in an aquifer is surrounded by layers of impermeable rock or clay, which...

many aquifers, research is lacking or disputed as to the age of the water and the behavior of the water inside the aquifer. Large, prolific aquifers (notably...

groundwater. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore...

The Edwards Aquifer is one of the most prolific artesian aquifers in the world. Located on the eastern edge of the Edwards Plateau in the U.S. state of...

The Floridan aquifer system, composed of the Upper and Lower Floridan aquifers, is a sequence of Paleogene carbonate rock which spans an area of about...

groundwater may be from precipitation or from groundwater flowing into the aquifer. In areas with sufficient precipitation, water infiltrates through pore...

The Guarani Aquifer, located beneath the surface of Argentina, Brazil, Paraguay, and Uruguay, is the second largest known aquifer system in the world...

In hydrogeology, an aquifer test (or a pumping test) is conducted to evaluate an aquifer by "stimulating" the aquifer through constant pumping, and observing...

This is a list of some aquifers in the United States. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains...

The aquifer properties of the aquifer essentially depend upon the composition of the aquifer. The most important properties of the aquifer are porosity...

The Equus Beds Aquifer is a distinct part the High Plains Aquifer System and is a principal municipal aquifer in south-central Kansas, underlying Hutchinson...

The Waiwhetu artesian aquifer, sometimes referred to as the Hutt aquifer, is a pressurized zone of water-retaining sand, gravel and boulders beneath the...

The Nubian Sandstone Aquifer System (NSAS) is the world's largest known fossil water aquifer system. It is located underground in the Eastern end of the...

Aquifer Edwards Aquifer Englishtown aquifer Floridan aquifer Great Miami aquifer Kirkwood–Cohansey aquifer Lloyd aquifer Magothy aquifer – largest of Long...

infiltrates to a very shallow aquifer, often less than 20 feet (6 m) below the surface. This aquifer is the well-known Ogallala Aquifer that is one of the most...

properties are physical properties that characterize the capacity of an aquifer to release groundwater. These properties are storativity (S), specific...

quality is imperative when treating blackwater in proximity to an aquifer. An aquifer refers to a subsurface stratum composed of permeable rock, soil,...

Rhine Plain close to the faults. Located below the plain, the Upper Rhine aquifer – one of the largest in Europe – holds an estimated 45,000 km3 (11,000 cu mi)...

Pica Aquifer (Spanish: acuífero de Pica) located in Tarapacá Region of northern Chile is one of the most important aquifers of Atacama Desert. The water...

An aquifer is a body of permeable rock that can contain or transmit groundwater. Aquifer susceptibility is the inherent ability of a formation to accept...

The Mahomet Aquifer is the most important aquifer in east-central Illinois. Composed of sand and gravel, it is part of the buried Mahomet Bedrock Valley...

The Calumet Aquifer is an aquifer underlying the land at the extreme southern tip of Lake Michigan. It underlies the northern third of Lake County, Indiana...

The Leederville Aquifer is a significant freshwater aquifer located in the south west of Western Australia and predominantly beneath the Swan Coastal...

Disi aquifer Amman The Disi Water Conveyance Project is a water supply project in Jordan. It is designed to pump 100,000,000 cubic metres (2.2×1010 imp gal)...

of groundwater in the soil and rocks of the Earth's crust (commonly in aquifers). The terms groundwater hydrology, geohydrology, and hydrogeology are often...

has emptied parts of the Ogallala Aquifer (also known as the High Plains Aquifer). One of the world's largest aquifers, it covers an area of approximately...

The Yarragadee Aquifer is a significant freshwater aquifer located in the south west of Western Australia and predominantly beneath the Swan Coastal Plain...

common kind of well is a water well, to access groundwater in underground aquifers. The well water is drawn up by a pump, or using containers, such as buckets...