The Green Drop report lays the status of South Africa’s wastewater treatment works bare. By looking at two wastewater treatment works (WWTW) per municipality, or one per district, the Green Drop spotlights areas of concern and improvement.
Released on 31 March 2026 to align with both Water Month and Human Rights Month in South Africa, the latest Green Drop report (covering 2023 to 2024) reveals that, despite ongoing investments, the development of action plans at the 2025 Water Indaba, and targeted compliance strategies, the condition of the country’s wastewater treatment systems has continued to deteriorate. Of the 848 WWTWs, 396 were found to be in a critical condition, despite some of the worst offenders from the last report being decommissioned. Minister of Water and Sanitation Pemmy Majodina says, “ The number of WWTWs in a critical condition has increased from 334 to 396, or from 39% to 47%.” This means that nearly half of WWTWs in South Africa are non-compliant and not performing well. Systems that were performing poorly have dropped to critical, and if the scope includes poorly performing as well as critical, then 61% of all WWTWs in South Africa are performing below the minimum required level. Equally as concerning is that some WWTWs that scored high in the last Green Drop report have fallen to below Green Drop certification. Systems that scored excellent fell from 14% to 8%, and Green Drop certifications dropped from 22 to 14. South Africa’s population-dense areas, like Gauteng and Western Cape, maintain their risk profile, whereas North West and Mpumalanga have made notable improvements. The Northern Cape remains the area with the highest concentration of critical condition WWTWs, something Majodina says can be rectified by public-private partnerships with the mining businesses in the area. Free State is also among the lowest-performing provinces.The Department of Water and Sanitation outlines repeat offenders, such as underinvestment, vandalism, organised crime, non-compliant maintenance, high losses, low payment, and under-billing, as the driving factors of this deterioration. This is only compounded by the lack of qualified staff and poor municipal management.