ETE SAO JOAO BATISTA - Secondary Wastewater Treatment Plant in Capivari, São Paulo

ETE SAO JOAO BATISTA is a municipal wastewater treatment plant located in Capivari, in the state of São Paulo, Brazil. The plant serves a small community of around 1,475 residents, reflecting its role in managing local domestic wastewater in the interior of São Paulo state. The plant provides secondary treatment, which is the standard biological treatment process that removes organic matter and suspended solids. Under Brazilian regulations (CONAMA resolutions and state-level environmental laws), secondary treatment is typically required for inland discharges to protect water quality. The plant's discharge volume is recorded at 180.45 units, indicating its operational scale. The treated effluent is discharged into local water bodies that ultimately drain into the Piracicaba River basin, part of the larger Paraná River system. This region is ecologically important, supporting diverse aquatic life and providing water for agriculture and urban use downstream. The plant's operation helps maintain water quality in the Capivari River and contributes to the health of the broader watershed.

The plant discharges into the Capivari River, a tributary of the Piracicaba River, which flows into the Tietê River and eventually the Paraná River basin. This watershed supports diverse aquatic ecosystems and is a critical water source for the region's agriculture and urban centers. Secondary treatment helps reduce organic pollution, protecting downstream water quality and aquatic habitats.