<P> The Western Cape Water Supply System (WCWSS) is a complex water supply system in the Western Cape region of South Africa, comprising an inter-linked system of six main dams, pipelines, tunnels and distribution networks, and a number of minor dams, some owned and operated by the Department of Water and Sanitation and some by the City of Cape Town . </P> <P> The largest component of the WCWSS is the Riviersonderend - Berg River Government Water Scheme, which is a large inter-basin water transfer scheme that regulates the flow of the Sonderend River flowing South towards the Indian Ocean, the Berg River flowing North towards the Atlantic Ocean and Eerste River that flows into False Bay . </P> <P> The principal dams are all located in the Cape Fold Mountains to the east of Cape Town . They are: </P>

Where does most cape towns water supply come from