Rand Water is the largest water utility in Africa, supplying treated water to approximately 14 million people in Gauteng and surrounding areas. Its infrastructure — built over decades to service South Africa's economic heartland — is aging, overstressed, and underfunded. The infrastructure backlog stands at R27 billion.
The Vaal River system, which supplies Rand Water's primary treatment works, is under extreme strain. Upstream pollution from municipal sewage (notably from Emfuleni and other Vaal municipalities) has degraded raw water quality, requiring more intensive — and expensive — treatment. The Integrated Vaal River System, which imports water from the Lesotho Highlands, is operating at near capacity. Climate variability adds further risk.
The most devastating statistic: 46% of the water Rand Water treats and distributes is lost before it reaches consumers. This represents a catastrophic waste of a scarce resource and a colossal financial loss. Much of the loss occurs in municipal distribution networks downstream of Rand Water — networks that municipalities have failed to maintain. These same municipalities owe Rand Water R20 billion in arrears, creating a vicious cycle: municipalities don't pay Rand Water, Rand Water cannot invest in infrastructure, infrastructure deteriorates further, more water is lost.