ETE Morro Azul Wastewater Treatment Plant, Pompeia, São Paulo

ETE Morro Azul is a wastewater treatment plant located in Pompeia, within the state of São Paulo, Brazil. The plant serves a population of approximately 8,823 residents, classifying it as a small to medium-sized facility in the region. It is situated inland, away from coastal areas, and its operations are part of the municipal sanitation infrastructure managed by the local water and sewage authority. Brazil's wastewater treatment standards are governed by federal regulations, including CONAMA resolutions and the National Water Resources Policy. For plants of this scale, secondary treatment is typically required to meet effluent quality standards before discharge. It is expected to comply with state-level environmental permits issued by CETESB, the environmental agency of São Paulo. The treated effluent from ETE Morro Azul is discharged into a local watercourse, which eventually flows into the Paraná River basin, one of South America's major river systems. This basin supports diverse aquatic life and provides water for agriculture and communities downstream. The plant plays a key role in protecting local water quality and preventing pollution in the region's waterways.

ETE Morro Azul discharges treated wastewater into a local stream that is part of the Paraná River basin. The Paraná River flows through Brazil, Paraguay, and Argentina before emptying into the Río de la Plata estuary. The basin supports a rich diversity of fish and other aquatic species, and its waters are used for irrigation, drinking water, and hydroelectric power. Proper treatment at this plant helps reduce nutrient and pathogen loads, protecting downstream ecosystems and human communities.