ETE CESARIO LANGE - Cesário Lange, São Paulo Wastewater Treatment Plant

ETE CESARIO LANGE is a municipal wastewater treatment plant located in Cesário Lange, a city in the state of São Paulo, Brazil. The plant serves a population of approximately 10,432 people, placing it in the small-to-medium agglomeration category. It is situated in the Região Metropolitana de Sorocaba, an area with growing urban and industrial activity. Brazil's wastewater treatment regulations are governed by the National Environment Council (CONAMA) and state-level environmental agencies. For plants of this scale, secondary treatment is typically required to meet effluent standards before discharge. It operates under the framework of Brazilian environmental legislation, which mandates compliance with discharge limits to protect water resources. The plant's treated effluent is discharged into local water bodies within the Sorocaba River basin, which ultimately flows into the Tietê River, a major tributary of the Paraná River system. This watershed supports diverse aquatic life and provides water for downstream communities. Proper treatment at ETE CESARIO LANGE helps reduce nutrient and organic pollution, contributing to the ecological health of the region's rivers.

The plant discharges into the Sorocaba River basin, part of the larger Tietê River watershed. The Tietê River flows through São Paulo state and eventually joins the Paraná River, which drains into the Río de la Plata estuary. This basin supports diverse aquatic ecosystems and is important for regional water supply. Effective wastewater treatment is critical to prevent eutrophication and protect downstream habitats.