A water well is a vertical excavation in the ground that is dug or drilled to access groundwater for drinking, irrigation, or other purposes. Wells have been used for centuries to provide access to clean water, and they remain an important source of water in many parts of the world.
There are many different types of water wells, but the most common type is the drilled well. Drilled wells are created by using a drill bit to bore a hole in the ground. The hole is then lined with a casing, which prevents the well from collapsing. Drilled wells can be very deep, and they can provide access to large amounts of water.