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An artesian well is a well that brings groundwater to the surface without pumping because it is under pressure within a body of rock or sediment known as an aquifer. [1] When trapped water in an aquifer is surrounded by layers of impermeable rock or clay, which apply positive pressure to the water, it is known as an artesian aquifer . [ 1 ]
The Great Artesian Basin (GAB) [1] of Australia is the largest and deepest artesian basin in the world, extending over 1,700,000 square kilometres (660,000 sq mi). Measured water temperatures range from 30 to 100 °C (86 to 212 °F).
This is a list of artesian wells in the United States.. Artesian, South Dakota wells; Artesian, Washington wells; Artesian Commons, Olympia, Washington; The Artesian Hotel, Sulphur, Oklahoma
The majority of deep aquifers are classified as artesian because the hydraulic head in a confined well is higher than the level of the top of the aquifer. If the hydraulic head in a confined well is higher than the land surface it is a "flowing" artesian well (named after Artois in France). [citation needed]
The water in the pool originates deep underground below 200 feet (61 m) from the western edge of the Ogallala Aquifer. [4] The Blue Hole is an example of a natural artesian well, a type of well or spring fed by water under high pressure, and of a cenote, a collapsed cavern exposing groundwater beneath.
At that time artesian heads in the system were 40 feet (12 m) above land surface and no pumps were needed; by 1898, it was estimated that between 200 and 300 wells had been finished in South Georgia, and by 1943, about 3,500 wells had been completed in the six coastal counties of Georgia.
Edwards and Trinity Aquifers map. The Edwards Aquifer is one of the most prolific artesian aquifers in the world. [2] Located on the eastern edge of the Edwards Plateau in the U.S. state of Texas, it is the source of drinking water for two million people, and is the primary water supply for agriculture and industry in the aquifer's region.
The two wells covered by the pumphouse were operating by 1891. They were sunk 32 feet apart using 6-inch pipe about 400 feet deep. Water mains were made of iron strapped pine wood from Puget Sound. The wells provided a combined water flow of 1,600,000 gallons per day at a temperature of about 170 °F. [13]