ETE Cabreuva Wastewater Treatment Plant, Cabreúva, São Paulo

ETE Cabreuva is a wastewater treatment plant located in Cabreúva, within the state of São Paulo, Brazil. The plant serves a population of approximately 3,940 residents, providing secondary treatment to municipal wastewater. It is situated inland, away from coastal areas, and operates under Brazil's national environmental regulations. The plant employs secondary treatment processes, which typically involve biological treatment to reduce organic matter and suspended solids. With a discharge volume of 557.77 m³/day, the facility meets the treatment standards expected for a small agglomeration under Brazilian regulations, which require adequate treatment to protect water quality. The treated effluent is discharged into local water bodies that eventually drain into the Tietê River basin, a major river system in São Paulo state. The Tietê River flows through the metropolitan region and ultimately reaches the Paraná River basin. The plant plays a key role in protecting downstream aquatic ecosystems and supporting water quality in the region.

The plant discharges into local streams that are part of the Tietê River basin, which flows through São Paulo state and eventually joins the Paraná River. The Tietê River is ecologically significant, supporting diverse aquatic life and providing water for agriculture and urban use. Downstream environments include reservoirs and floodplains that are important for biodiversity and water supply.