|Diagram by Erik Nissen Peterson.
A ferrocement well is a type of "earth wall" well with a straight, smooth surface. It is plastered with a layer of mortar, reinforced with chicken wire, and finally plastered a second time. To keep children and animals from falling into the well, a cover for the well is built above ground level. To prevent contamination of the well, a concrete apron, is also constructed in the area surrounding the well.