Dandora Estate Sewarage Treatment Works - Nairobi, Kenya Wastewater Treatment Plant

Dandora Estate Sewarage Treatment Works is an operational wastewater treatment facility located in the Dandora area of Nairobi, Kenya. The plant serves a densely populated urban area, including one of the largest informal settlements in East Africa. As part of Nairobi's wastewater infrastructure, it contributes to public health and environmental protection in the Nairobi River basin. The plant operates under Kenya's regulatory framework for wastewater management, which is governed by the National Environment Management Authority (NEMA) and the Water Services Regulatory Board (WASREB). For facilities serving large urban populations, secondary treatment is typically required to meet national discharge standards. The plant's operational status indicates ongoing service to the community. Treated effluent from the plant is discharged into the Nairobi River system, which flows through the Athi River basin and eventually reaches the Indian Ocean. The river supports local communities and ecosystems downstream, making effective treatment critical for reducing pollution and protecting water quality in the broader watershed.

The plant discharges into the Nairobi River, a tributary of the Athi River, which flows southeast through Kenya to the Indian Ocean. The river system supports diverse aquatic life and provides water for agriculture and domestic use downstream. Effective wastewater treatment is essential to mitigate pollution from urban runoff and sewage, protecting both ecological health and human communities reliant on the river.