ETE Jacaré Wastewater Treatment Plant, Cabreúva, São Paulo, Brazil

ETE Jacaré is a wastewater treatment plant located in the Jacaré district of Cabreúva, within the state of São Paulo, Brazil. The plant serves a population of around 23,078 residents, making it a medium-sized facility for the region. It is situated in the interior of São Paulo state, away from the coast, and its operations are part of the local sanitation infrastructure managed by municipal authorities. Brazil's wastewater treatment standards are governed by CONAMA Resolution 430/2011 and the National Water Resources Policy (Law 9.433/1997). For plants of this scale, secondary treatment is typically required to reduce organic load and suspended solids before discharge. It is expected to comply with state-level environmental licensing from CETESB, São Paulo's environmental agency. The treated effluent from ETE Jacaré is discharged into local water bodies within the Tietê River basin, which flows through São Paulo state and eventually into the Paraná River system. This basin supports diverse aquatic life and provides water for agriculture, industry, and drinking water downstream. Proper treatment at this plant helps protect water quality in the region.

ETE Jacaré discharges into the Tietê River basin, a major watershed in São Paulo state. The Tietê River flows westward through the state and joins the Paraná River, which ultimately reaches the Río de la Plata estuary. The basin supports diverse aquatic ecosystems and is important for regional water supply. Downstream areas include reservoirs and wetlands that provide habitat for fish and migratory birds.