The artesian wells that once bubbled through the valley are long gone. And the Tachi Yokuts have been forced to drill deeper and deeper — chasing groundwater so contaminated with arsenic that ...

It explains the concept of the water table, the process of groundwater flow, and the formation of artesian wells. The film highlights geological phenomena such as hot springs, geysers, limestone ...

Groundwater is one of our most valuable resources—even though you probably never see it or even realize it is there. There is water somewhere beneath your feet no matter where on Earth you live.