Greylingstad Wastewater Treatment Plant, Dipaleseng Local Municipality, Mpumalanga

Greylingstad wastewater treatment plant is located in Dipaleseng Local Municipality, Mpumalanga, South Africa, along the R23 road. The facility serves a small population and operates as a secondary treatment plant, discharging treated effluent into local water bodies. As a secondary treatment plant, Greylingstad meets the standard requirements for municipal wastewater treatment in South Africa, where the Department of Water and Sanitation regulates discharges under the National Water Act. The plant's discharge volume of 1.00 million cubic meters per year reflects its scale and operational capacity. The treated effluent from Greylingstad ultimately drains into the Vaal River catchment, which flows into the Orange River and then to the Atlantic Ocean. The Vaal River system supports diverse aquatic life and provides water for agriculture and urban use downstream.

Greylingstad's treated effluent enters the local drainage network, which feeds into the Vaal River basin. The Vaal River is a major tributary of the Orange River, flowing westward to the Atlantic Ocean. The catchment supports irrigated agriculture and provides drinking water to millions of people. Downstream ecosystems include wetlands and riverine habitats that rely on consistent water quality.