ETE SOUSAS Wastewater Treatment Plant, Sousas, Campinas, São Paulo, Brazil

ETE SOUSAS is a wastewater treatment plant located in the Sousas district of Campinas, in the state of São Paulo, Brazil. The plant serves a population of about 12,244 people, making it a small-scale facility within the urban context of the Campinas metropolitan region. As a Brazilian wastewater treatment plant, ETE SOUSAS operates under the national regulatory framework established by the National Environment Council (CONAMA) and the Ministry of Cities. For a plant of this size, secondary treatment is typically required to meet effluent standards for discharge into receiving waters. The plant discharges treated wastewater into local water bodies that are part of the Piracicaba River basin, which flows into the Tietê River and eventually reaches the Paraná River basin. This watershed supports diverse aquatic life and provides water for agricultural and urban uses downstream. The region's subtropical climate with seasonal rainfall influences the plant's operational considerations.

The plant's treated effluent likely enters a tributary of the Piracicaba River, which flows into the Tietê River, a major watercourse in São Paulo state. The Tietê River ultimately joins the Paraná River, draining into the Río de la Plata estuary. This watershed supports diverse aquatic ecosystems and provides water for agriculture and urban supply. The region's subtropical climate with wet summers and dry winters affects streamflow and dilution capacity.