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...

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...

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...

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...

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 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...

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

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...

Great Miami aquifer Kirkwood–Cohansey aquifer Lloyd aquifer Magothy aquifer – largest of Long Island's aquifers Mahomet Aquifer Medina aquifer Mt. Laurel–Wenonah...

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

the process of extracting groundwater beyond the equilibrium yield of an aquifer. Groundwater is one of the largest sources of fresh water and is found...

Aquifer storage and recovery (ASR) is the direct injection of surface water supplies such as potable water, reclaimed water (i.e. rainwater), or river...

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...

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

that supplies fresh water obtained from the Nubian Sandstone Aquifer System fossil aquifer across Libya. It is the world's largest irrigation project....

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

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...

groundwater. Recharge is the primary method through which water enters an aquifer. This process usually occurs in the vadose zone below plant roots and is...

The Arabian Aquifer System is primarily located in Saudi Arabia but also in Jordan, Syria, Iraq, Kuwait, Bahrain, Qatar, United Arab Emirates, Oman, and...

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...

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...

Groundwater flow rate in karst aquifers is much more rapid than in porous aquifers. For example, in the Barton Springs Edwards aquifer, dye traces measured the...

Principal aquifers of California are those principal aquifers of the United States that lie within (or rather, below) the California state boundaries...

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

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...

a god-like status among his followers through his control of the sole aquifer in the region. Despite this, he is in actuality sick and diseased, at times...

Zumpango, Chalco, and Xochimilco). Much of the lake was fed from groundwater aquifers; fresh water poured in from Lake Chalco and Xochimilco's freshwater springs...