Lydenburg Wastewater Treatment Plant, Thaba Chweu Local Municipality, Mpumalanga

Lydenburg wastewater treatment plant is located in Mashishing (formerly Lydenburg), within Thaba Chweu Local Municipality, Mpumalanga Province, South Africa. The plant serves a population of approximately 45,522, placing it in the medium-agglomeration category for the region. As a South African municipal wastewater facility, the plant is subject to the National Water Act (Act 36 of 1998) and the Water Services Act (Act 108 of 1997), which set standards for effluent quality and discharge. Plants of this scale typically employ secondary treatment processes, such as activated sludge or trickling filters, to meet general effluent standards before discharge. The treated effluent is likely discharged into a local watercourse within the Olifants River catchment, which flows through the Kruger National Park and into the Limpopo River basin. The plant plays a key role in protecting downstream water quality in this ecologically important region, supporting both agricultural and natural water uses.

The plant discharges into the Olifants River catchment, part of the Limpopo River basin that drains into the Indian Ocean via Mozambique. The Olifants River supports diverse aquatic life and is a critical water source for agriculture and ecosystems in Mpumalanga. Downstream, the river flows through the Kruger National Park, a globally significant conservation area. Protecting water quality in this catchment is essential for maintaining biodiversity and regional water security.