Minimising Groundwater Contamination from Pit Latrines: Lessons from the Global Amphitheatre for South Africa

Abstract

Pit latrines or toilets are considered to be suitable for the containment of human excreta and they are environment-friendly. Although previous studies have shown that there are some improvements in terms of access to sanitation, the reality is that most South African households still do not have access to sanitation facilities. At least 32.2% of households in South Africa are still using pit latrines. Despite the advantages of pit latrines, the constant outflow from pits could overpercolate the geological strata and contaminate the groundwater. Therefore, the aim of this paper is to reflect on lessons that South Africa can draw from the global arena with regard to reducing groundwater pollution from pit latrines. Concerning the method used to collect data - a review of scholarly peer-reviewed articles and non-scholarly documents such as newspaper reports was used. This paper explains how pit latrines contaminate groundwater as well as discuss the chemical contaminants associated with pit latrines. Importantly, this paper argues that the measures that can be taken to address challenges pertaining to groundwater contamination include operation and maintenance, improved pit and slab design, and setting safe distances between boreholes and pit latrines. Since pit latrines seem to contribute greatly to the contamination of groundwater, transferring bacteria and viruses, it is important for the government (municipalities in particular) to sensitise people about the health hazards associated with the use of pit latrines while also using groundwater for consumption. At the same time, communities who use pit latrines and boreholes for drinking water have to be educated about the need to maintain proper distances between pit latrines and boreholes.