An apron slab is a smooth impermeable surface constructed around a borehole (hand pump) to prevent spilt water soaking into the ground. Its purpose is to prevent pollution of the groundwater supply and prevent the development of puddles or muddy conditions that are unpleasant, can attract mosquitoes, flies and animals around the borehole which could lead to the transmission of diseases.
Most times borehole ground water is polluted by the sipping in of pooled contaminated water at certain points like a cracked apron and drainage line – this water can easily soak in and reach the aquifer if not managed. Pooling of water is mainly as a result of human activities around the borehole like washing clothes and utensils and even taking a bath.
