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  2. Aquifer - Wikipedia

    en.wikipedia.org/wiki/Aquifer

    The Guarani Aquifer, located beneath the surface of Argentina, Brazil, Paraguay, and Uruguay, is one of the world's largest aquifer systems and is an important source of fresh water. [28] Named after the Guarani people , it covers 1,200,000 km 2 (460,000 sq mi), with a volume of about 40,000 km 3 (9,600 cu mi), a thickness of between 50 and 800 ...

  3. Groundwater - Wikipedia

    en.wikipedia.org/wiki/Groundwater

    This is an accepted version of this page This is the latest accepted revision, reviewed on 24 December 2024. Water located beneath the ground surface An illustration showing groundwater in aquifers (in blue) (1, 5 and 6) below the water table (4), and three different wells (7, 8 and 9) dug to reach it. Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in ...

  4. Groundwater recharge - Wikipedia

    en.wikipedia.org/wiki/Groundwater_recharge

    Groundwater recharge is an important process for sustainable groundwater management, since the volume-rate abstracted from an aquifer in the long term should be less than or equal to the volume-rate that is recharged. Recharge can help move excess salts that accumulate in the root zone to deeper soil layers, or into the groundwater system.

  5. What is the Ogallala Aquifer and why is it running out ... - AOL

    www.aol.com/ogallala-aquifer-why-running-water...

    Kansas accounts for about 10% of the water in the Aquifer, the third most of the eight states that can access the water. The Ogallala aquifer is the principal source of water for agriculture in ...

  6. List of aquifers in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_aquifers_in_the...

    Aquifers of the United States Withdrawal rates from the Ogallala Aquifer.. This is a list of some aquifers in the United States.. Map of major US aquifers by rock type. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to groundwater wells and springs.

  7. Aquifer properties - Wikipedia

    en.wikipedia.org/wiki/Aquifer_properties

    The aquifer properties of the aquifer essentially depend upon the composition of the aquifer.The most important properties of the aquifer are porosity and specific yield which in turn give its capacity to release the water in the pores and its ability to transmit the flow with ease.

  8. Hydrogeology - Wikipedia

    en.wikipedia.org/wiki/Hydrogeology

    Aquifers can be unconfined, where the top of the aquifer is defined by the water table, or confined, where the aquifer exists underneath a confining bed. [5] There are three aspects that control the nature of aquifers: stratigraphy, lithology, and geological formations and deposits. The stratigraphy relates the age and geometry of the many ...

  9. Despite California groundwater law, aquifers keep dropping in ...

    www.aol.com/news/despite-california-groundwater...

    California passed its landmark groundwater law in 2014. The goals of sustainable management remain a long way off.