ETE VILLA BRANCA Wastewater Treatment Plant, Jacareí, São Paulo, Brazil

ETE VILLA BRANCA is a wastewater treatment plant located in the Vila Branca neighborhood of Jacareí, in the state of São Paulo, Brazil. The plant serves a population of approximately 11,427 residents, making it a medium-sized facility within the region's sanitation network. It is situated in the Vale do Paraíba region, an area known for its industrial and agricultural activity. As a Brazilian wastewater treatment plant, ETE VILLA BRANCA operates under the national regulatory framework established by the Ministry of Cities and state environmental agencies such as CETESB in São Paulo. Brazilian regulations require adequate treatment for wastewater before discharge, with standards varying by receiving water body classification. For a plant serving around 11,000 people, secondary treatment is typically expected to meet environmental standards. The plant's treated effluent is discharged into local water bodies that ultimately flow into the Paraíba do Sul River, one of Brazil's most important rivers. The Paraíba do Sul River supplies water to millions of people in the states of São Paulo, Rio de Janeiro, and Minas Gerais, and supports diverse aquatic ecosystems. Proper treatment at ETE VILLA BRANCA helps protect downstream water quality and public health.

The plant discharges into the Paraíba do Sul River basin, which drains into the Atlantic Ocean near Campos dos Goytacazes. The river supports a rich diversity of fish and other aquatic life, and its waters are used for drinking water supply, irrigation, and industrial processes. Protecting this watershed is critical for maintaining ecological balance and ensuring water security for downstream communities.