A cone of depression forms when water is pumped from an unconfined aquifer, but not when water is pumped from a confined aquifer.

Question

Quizplus · Accepted Answer

The statement is false. A cone of depression can also form when water is pumped from a confined aquifer, especially if the pumping rate is high. The difference is that the cone of depression in a confined aquifer is usually smaller and deeper than in an unconfined aquifer because the water is under greater pressure and more tightly confined.

A Cone of Depression Forms When Water Is Pumped from an Unconfined