Given a scientific passage and an answer, generate a question for the given answer.

Passage: Most groundwater does not flow out of an aquifer as a spring or geyser. So to use the water that's stored in an aquifer people must go after it. How? They dig a well. A well is a hole that is dug or drilled through the ground down to an aquifer. This is illustrated in Figure below . Answer: dig a well
How can people access water in an aquifer that does not flow from a spring or a geyser?