ETE Marlene Miranda Wastewater Treatment Plant, Taubaté, São Paulo

ETE Marlene Miranda is a municipal wastewater treatment plant located in Taubaté, São Paulo, Brazil. The facility serves approximately 13,228 residents in the Jardim Marlene Miranda neighborhood and surrounding areas, operating as part of the city's sanitation infrastructure. The plant operates under Brazil's national environmental regulations, which require wastewater treatment for urban agglomerations. For a population of this scale, secondary treatment is typically expected to meet effluent standards set by the National Environment Council (CONAMA). The treated effluent is discharged into local water bodies that drain into the Paraíba do Sul River basin, a major waterway in southeastern Brazil. The river flows through the Vale do Paraíba region and ultimately reaches the Atlantic Ocean near Campos dos Goytacazes, supporting diverse aquatic ecosystems and providing water for multiple municipalities.

The plant discharges into the Paraíba do Sul River basin, which flows through the densely populated Vale do Paraíba region. The river is a critical water source for millions of people and supports diverse aquatic life, including migratory fish species. Downstream, the river reaches the Atlantic Ocean, where its estuary provides important nursery habitats for marine organisms. The watershed faces pressures from urban runoff and industrial activities, making effective wastewater treatment essential for maintaining water quality.