coliform bacteria and protozoa such as Giardia and Cryptosporidium) and chemical contaminants than a supply from surface water. The point at which the groundwater reaches the surface is prone to contamination, so must be protected using a structure called a spring box. This is often surrounded by a fence to keep animals out, with other common features being a ditch on the uphill side, an overflow pipe and a well fitting lid.
Groundwater that contains harmful bacteria like coliforms and protozoa such as Giardia and Cryptosporidium) and chemical contaminants is less reliable than surface water. The point where groundwater emerges at the surface is vulnerable to contamination, so it needs protection using a spring box structure. This is often fenced off from animals, with other typical features being a ditch on the uphill side, an overflow pipe, and a secure lid.