Figure 9.26

Artesian wells. Water gushes from artesian wells that are located below the potentiometric surface of a groundwater recharge area. Water must be pumped up from an artesian well located above the potentiometric surface. Vendome Well (inset), in south-central Oklahoma, is an artesian well that gushes 9,500 L (2,500 gal) of naturally saline water each minute.

(Courtesy of Butch Bridges, www.oklahomahistory.net)