ETE Teodoro Sampaio Wastewater Treatment Plant, Teodoro Sampaio, São Paulo, Brazil

ETE Teodoro Sampaio is a wastewater treatment plant located in Teodoro Sampaio, a municipality in the state of São Paulo, Brazil. The plant serves a population of around 17,377 people, classifying it as a medium-sized facility within the region's sanitation network. Its location in the interior of São Paulo places it within a context of expanding urban wastewater coverage under Brazilian regulatory frameworks. Brazil's wastewater treatment standards are governed by federal regulations, including CONAMA resolutions and the National Sanitation Plan (Plansab). For plants of this scale, secondary treatment is typically required to meet effluent quality standards. The plant's operational details, including treatment process and capacity, are part of the municipal sanitation service managed by local authorities. The treated effluent is discharged into local water bodies within the Paraná River basin, which ultimately drains into the Río de la Plata estuary. The region's aquatic ecosystems support diverse freshwater species and are important for local agriculture and water supply. Proper treatment at this plant helps protect downstream water quality and ecological health.

The plant discharges into watercourses within the Paraná River basin, one of South America's major river systems. The Paraná flows southward through Brazil, Paraguay, and Argentina, eventually reaching the Río de la Plata estuary. This watershed supports extensive biodiversity, including migratory fish species and riparian forests. Effective wastewater treatment is crucial to prevent nutrient loading and maintain water quality for downstream communities and ecosystems.