ETE Parque Andreense - Advanced Wastewater Treatment in Santo André, São Paulo

ETE Parque Andreense is a wastewater treatment facility located in the Parque Represa Billings III neighborhood of Santo André, within the São Paulo metropolitan region. The plant serves a small population of 790 residents, reflecting its role in a localized community within the larger urban area. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. This level of treatment is typical for facilities discharging into sensitive water bodies. In Brazil, wastewater treatment is regulated by CONAMA resolutions and state environmental agencies, with advanced treatment often required for discharge into protected reservoirs or water supply sources. The treated effluent from ETE Parque Andreense is discharged into the Billings Reservoir, a critical water body for the São Paulo region. The reservoir supplies drinking water and supports recreation and biodiversity. The plant's advanced treatment helps protect water quality in this ecologically sensitive area, which is part of the Upper Tietê River basin and ultimately drains into the Paraná River system.

The plant discharges into the Billings Reservoir, a large artificial lake in the São Paulo metropolitan area. This reservoir is a key water source for the region and supports diverse aquatic life. The reservoir drains into the Tietê River, which flows through São Paulo state and eventually joins the Paraná River, one of South America's major river systems. The advanced treatment at ETE Parque Andreense helps mitigate nutrient loading and protects the reservoir's ecological health.