ETE FUNDAO MIRASSOL Wastewater Treatment Plant, Mirassol, São Paulo, Brazil

ETE FUNDAO MIRASSOL is a wastewater treatment plant located in the Jardim Imperial residential area of Mirassol, in the state of São Paulo, Brazil. The plant serves a population of approximately 11,324 residents, placing it in the small-to-medium agglomeration category for Brazilian wastewater infrastructure. As a plant in Brazil, ETE FUNDAO MIRASSOL operates under the national regulatory framework established by the National Environment Council (CONAMA) and the Ministry of Cities. Brazilian regulations require secondary treatment for urban wastewater, with more stringent requirements for discharges into sensitive water bodies. The plant's treated effluent is discharged into local watercourses that ultimately drain into the Paraná River basin, one of South America's major river systems. The downstream environment supports diverse aquatic life and provides water for agricultural and urban uses in the region. Proper treatment helps protect water quality in the receiving streams and contributes to the ecological health of the broader basin.

The plant discharges into local tributaries of the Paraná River basin, which flows through southeastern Brazil and into the Río de la Plata estuary. The region's watershed supports agricultural irrigation and provides habitat for fish and other aquatic species. Effective wastewater treatment is essential to prevent nutrient enrichment and maintain water quality in this ecologically and economically important basin.