ETE Campos do Jordão Wastewater Treatment Plant, Campos do Jordão, São Paulo, Brazil

ETE Campos do Jordão is a wastewater treatment plant located in Campos do Jordão, a city in the state of São Paulo, Brazil. The plant serves a population of about 13,108 residents, placing it in the small to medium agglomeration category. As part of Brazil's wastewater infrastructure, it plays a key role in managing sewage from this mountainous tourist destination. The plant operates under Brazil's national environmental framework, which includes CONAMA resolutions and state-level regulations from CETESB (São Paulo's environmental agency). For agglomerations of this size, secondary treatment is typically required to protect receiving water bodies. The plant is expected to meet discharge standards set by the permitting authority. The treated effluent is discharged into local watercourses that drain into the Paraíba do Sul River basin, a major river system in southeastern Brazil. This river flows through the Vale do Paraíba region and ultimately reaches the Atlantic Ocean near Campos dos Goytacazes. The watershed supports diverse aquatic life and provides water for downstream communities, making effective treatment essential for environmental protection.

The plant discharges into tributaries of the Paraíba do Sul River, which flows through the Vale do Paraíba region and empties into the Atlantic Ocean. The watershed is ecologically sensitive, supporting diverse aquatic species and providing water for agriculture and urban use downstream. Proper treatment is critical to prevent nutrient pollution and protect the river's ecological health.