A report on GroundwaterWater and Water resources

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.
A water molecule consists of two hydrogen atoms and one oxygen atom
Global values of water resources and human water use (excluding Antarctica). Water resources 1961-90, water use around 2000. Computed by the global freshwater model WaterGAP.
Dzherelo, a common source of drinking water in a Ukrainian village
The three common states of matter
Lake Chungará and Parinacota volcano in northern Chile
The entire surface water flow of the Alapaha River near Jennings, Florida, going into a sinkhole leading to the Floridan Aquifer groundwater
Phase diagram of water (simplified)
Relative groundwater travel times in the subsurface
Groundwater may be extracted through a water well
Tetrahedral structure of water
Total renewable freshwater resources of the world, in mm/yr ( 1 mm is equivalent to 1 l of water per m²) (long-term average for the years 1961-1990). Resolution is 0.5° longitude x 0.5° latitude (equivalent to 55 km x 55 km at the equator). Computed by the global freshwater model WaterGAP.
Diagram of a water balance of the aquifer
Model of hydrogen bonds (1) between molecules of water
A power plant in Poland
Iron (III) oxide staining (after water capillary rise in a wall) caused by oxidation of dissolved iron (II) and its subsequent precipitation, from an unconfined aquifer in karst topography. Perth, Western Australia.
Water cycle
Drinking water
Groundwater withdrawal rates from the Ogallala Aquifer in the Central United States
Overview of photosynthesis (green) and respiration (red)
Polluted water
Center-pivot irrigated fields in Kansas covering hundreds of square miles watered by the Ogallala Aquifer
Water fountain
Typical urban water cycle depicting drinking water purification and municipal sewage treatment systems. Source: U.S. Environmental Protection Agency, "Primer for Municipal Wastewater Treatment Systems." EPA 832-R-04-001. p. 7.
An environmental science program – a student from Iowa State University sampling water
Panorama of a natural wetland (Sinclair Wetlands, New Zealand)
Total water withdrawals for agricultural, industrial and municipal purposes per capita, measured in cubic metres (m³) per year in 2010
A young girl drinking bottled water
Water availability: the fraction of the population using improved water sources by country
Roadside fresh water outlet from glacier, Nubra
Hazard symbol for non-potable water
Water is used for fighting wildfires.
San Andrés island, Colombia
Water can be used to cook foods such as noodles
Sterile water for injection
Band 5 ALMA receiver is an instrument specifically designed to detect water in the universe.
South polar ice cap of Mars during Martian south summer 2000
An estimate of the proportion of people in developing countries with access to potable water 1970–2000
People come to Inda Abba Hadera spring (Inda Sillasie, Ethiopia) to wash in holy water
Icosahedron as a part of Spinoza monument in Amsterdam.
Water requirement per tonne of food product
Irrigation of field crops
Specific heat capacity of water

Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations.

- Groundwater

Water resources are natural resources of water that are potentially useful for humans, for example as a source of drinking water supply or irrigation water.

- Water resources

Natural sources of fresh water include surface water, under river flow, groundwater and frozen water.

- Water resources

Small portions of water occur as groundwater (1.7%), in the glaciers and the ice caps of Antarctica and Greenland (1.7%), and in the air as vapor, clouds (consisting of ice and liquid water suspended in air), and precipitation (0.001%).

- Water

Groundwater is an important water resource for the supply of drinking water, especially in arid countries.

- Groundwater

Water politics is politics affected by water and water resources.

- Water
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.

2 related topics with Alpha

Overall

Visualisation of the distribution (by volume) of water on Earth. Each tiny cube (such as the one representing biological water) corresponds to approximately 1400 cubic km of water, with a mass of approximately 1.4 trillion tonnes (235000 times that of the Great Pyramid of Giza or 8 times that of Lake Kariba, arguably the heaviest man-made object). The entire block comprises 1 million tiny cubes.

Fresh water

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Visualisation of the distribution (by volume) of water on Earth. Each tiny cube (such as the one representing biological water) corresponds to approximately 1400 cubic km of water, with a mass of approximately 1.4 trillion tonnes (235000 times that of the Great Pyramid of Giza or 8 times that of Lake Kariba, arguably the heaviest man-made object). The entire block comprises 1 million tiny cubes.
A graphical distribution of the locations of water on Earth. Only 3% of the Earth's water is fresh water. Most of it is in icecaps and glaciers (69%) and groundwater (30%), while all lakes, rivers and swamps combined only account for a small fraction (0.3%) of the Earth's total freshwater reserves.

Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids.

Fresh water may encompass frozen and meltwater in ice sheets, ice caps, glaciers, snowfields and icebergs, natural precipitations such as rainfall, snowfall, hail/sleet and graupel, and surface runoffs that form inland bodies of water such as wetlands, ponds, lakes, rivers, streams, as well as groundwater contained in aquifers, subterranean rivers and lakes.

Fresh water is the water resource that is of the most and immediate use to humans.

A girl collects clean water from a communal water supply in Kawempe, Uganda.

Water supply

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A girl collects clean water from a communal water supply in Kawempe, Uganda.
Engine room of municipal water works in Toledo, Ohio, 1908
1880s model of pumping engine, in Herne Bay Museum
Cape Town water crisis warning, July 2018
The sole water supply of this section of Wilder, Tennessee, 1942
A typical residential water meter
Water supplied by a truck in Kolhapur, Maharashtra, India
Shipot, a common source of drinking water in Dzyhivka, Ukraine
Wasserkunst and fountain from 1602 in Wismar, Germany. It's an example of pre-industrialization waterworks and fountain.

Water supply is the provision of water by public utilities, commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes.

Water supply systems get water from a variety of locations after appropriate treatment, including groundwater (aquifers), surface water (lakes and rivers), and the sea through desalination.

First, it provides an incentive to conserve water which protects water resources (environmental objective).