ETE Pederneiras Wastewater Treatment Plant, Pederneiras, São Paulo, Brazil

ETE Pederneiras is a municipal wastewater treatment plant located in the Conjunto Habitacional Leonor Mendes de Barros area of Pederneiras, in the state of São Paulo, Brazil. The plant serves an estimated population of 39,392 residents, classifying it as a medium-sized agglomeration within the region's sanitation infrastructure. As a Brazilian wastewater facility, ETE Pederneiras is subject to the national environmental standards set by CONAMA (National Environment Council) and state-level regulations from CETESB (São Paulo's environmental agency). The plant's treated effluent is discharged into local water bodies within the Tietê River basin, which ultimately drains into the Paraná River system. This watershed supports diverse aquatic life and provides water for agricultural and urban uses downstream. Proper treatment at ETE Pederneiras helps protect water quality in the region's rivers and reservoirs.

The plant discharges into the Tietê River basin, part of the larger Paraná River system that flows into the Río de la Plata estuary. This watershed supports diverse aquatic ecosystems and is critical for water supply in southeastern Brazil. The region's subtropical climate and agricultural activity make nutrient removal an important consideration for downstream water quality.