Under the surface of Death Valley is one of the world's largest aquifers.
Virtually no water infiltrates deserts such as the Sahara at present, but there are some large aquifers beneath them.
As consequence of this infiltration a large aquifer is situated beneath Mocho-Choshuenco.
Plainview's ground water makes up a section of the larger underground aquifer, but its contamination has not yet spread.
Though he lives atop one of the world's largest aquifers, the Ogallala, which spans eight states, it is falling every day.
The village is located on the edge of a large natural aquifer which accounts for the large number of springs in and around the area.
The oceanic crust contains the largest aquifer on Earth.
This has mainly taken place in the largest aquifer recharge areas.
The shaft had to be drilled through one of the world's largest aquifers.
There innovative system uses a series of wells which are linked to a large underground aquifer.