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

ETE Marinópolis is a municipal wastewater treatment plant located in Marinópolis, a small town in the state of São Paulo, Brazil. The plant serves a population of approximately 1,611 residents, reflecting its role in a small agglomeration. It is situated in the southeastern region of Brazil, an area characterized by tropical climate and agricultural activity. The plant provides secondary treatment, which is a biological process that removes organic matter and suspended solids. For small communities in Brazil, secondary treatment is a common standard, often aligned with national regulations such as CONAMA Resolution 430/2011, which sets effluent discharge standards. The plant's discharge volume is recorded at 243.98 (likely in cubic meters per day or similar unit), indicating its operational scale. The treated effluent from ETE Marinópolis is discharged into local water bodies that drain into the Paraná River basin, one of South America's major river systems. The Paraná River flows southward, eventually reaching the Río de la Plata estuary. The plant's operations help protect downstream water quality, supporting aquatic life and human uses in the region.

The plant discharges into the Paraná River basin, which flows through southeastern Brazil, Paraguay, and Argentina before emptying into the Río de la Plata estuary. The basin supports diverse aquatic ecosystems, including important fish species and riparian habitats. The region's agricultural runoff and urban discharges make proper wastewater treatment critical for maintaining water quality and ecological balance.