ETE EPAR CAPIVARI II Wastewater Treatment Plant, Campinas, São Paulo

ETE EPAR CAPIVARI II is a wastewater treatment plant located in the Campo Grande area of Campinas, in the state of São Paulo, Brazil. The plant serves an estimated population of 45,446 residents, placing it in the medium-agglomeration category for Brazilian wastewater infrastructure. As a facility in Brazil, the plant is subject to CONAMA Resolution 430/2011 and state-level environmental regulations from CETESB, which set discharge standards for treated effluent. The plant discharges into local water bodies that drain into the Piracicaba River basin, a critical watershed for the region. The Piracicaba River flows into the Tietê River, which ultimately reaches the Paraná River basin and the Río de la Plata estuary. The surrounding ecosystem supports diverse aquatic life and provides water for agricultural and urban use downstream.

The plant's treated effluent enters the Piracicaba River basin, which flows into the Tietê River and eventually the Paraná River system, draining into the Río de la Plata estuary. This watershed supports diverse aquatic habitats and is important for regional water supply and agriculture. The area is ecologically sensitive due to urban and industrial pressures, requiring effective nutrient and pathogen removal to protect downstream water quality.