Which type of water well has a higher yield?

An artesian well typically has a higher yield compared to other types of wells due to the natural pressure that exists in the aquifer from which it draws water. In artesian wells, water is confined in a geologic formation and is under pressure, allowing it to rise to the surface without the need for pumping. This pressure can result from geological formations where water is trapped between impermeable layers of rock or sediment, creating a reservoir of water that flows freely when tapped.

The flow rate of an artesian well is usually greater than that of shallow wells, driven wells, and non-artesian wells because of this natural pressure. Shallow wells may draw from less productive aquifers, making them less likely to provide a high yield. Driven wells, while they can yield water, are limited by their construction and depth, typically resulting in lower yields. Non-artesian wells also generally rely on pumping, which can limit the yield compared to the free-flowing nature of artesian wells.

Thus, the unique characteristics of artesian wells, primarily their pressure-driven flow, contribute to their often higher yield compared to other well types.