ETE OUROESTE Wastewater Treatment Plant, Ouroeste, São Paulo, Brazil

ETE OUROESTE is a wastewater treatment plant located in Ouroeste, a municipality in the state of São Paulo, Brazil. The facility serves a population of 8,524 residents, placing it in the small agglomeration category under Brazilian wastewater management frameworks. The plant is situated inland, approximately 50 kilometers from the coast, and operates within the broader context of Brazil's national sanitation policies. The plant's designed capacity of 1.00 cubic meters per second indicates its scale. In Brazil, wastewater treatment plants serving populations of this size are typically subject to state-level environmental licensing and must comply with CONAMA resolutions, which set effluent quality standards. The plant likely employs conventional treatment technologies appropriate for its capacity and local regulatory requirements. The treated effluent from ETE OUROESTE is discharged into local water bodies that are part of the Paraná River basin, one of the most significant hydrological systems in South America. The plant plays a crucial role in protecting downstream water quality and supporting the ecological health of the region's rivers and streams, which ultimately drain into the Paraná River and the Río de la Plata estuary.

ETE OUROESTE discharges into the local watershed within the Paraná River basin, which flows through southeastern Brazil and eventually reaches the Río de la Plata estuary in Argentina and Uruguay. The region's aquatic ecosystems support diverse fish species and provide important habitat for migratory birds. Proper treatment of wastewater is essential to prevent nutrient loading and maintain water quality in this ecologically significant basin.