Two-thirds of the world capacity is processing seawater, and one-third uses brackish artesian water.
Water confined in this way is said to be under artesian pressure, and the aquifer is called an artesian aquifer.
Data indicate that there are two aquifers--a shallow aquifer and an artesian aquifer--separated by a clay-and-silt layer.
When a well is drilled into an artesian aquifer, pressure pushes water in the well above the top of the aquifer.
If the pressure is high enough, water can flow from an artesian well.
It was built over the town's artesian well to provide protection and shade.
Benches were placed around the artesian well to provide a recreational spot for the towns people.
Another artesian well suddenly began feeding water to an old water trough.
Word Origin and History for artesian
1830, from Fr. puits artésien "wells of Artois," French province where such wells were first bored 18c. by Bélidor (1698-1761), from O.Fr. Arteis, from Atrebates, a tribe who lived in northwestern Gallia. Cf. Arras.