ETE Santa Maria Sumaré - Secondary Wastewater Treatment Plant in Sumaré, São Paulo, Brazil

ETE Santa Maria Sumaré is a wastewater treatment plant located in Sumaré, within the state of São Paulo, Brazil. The facility serves a small population of 1,089 residents and operates with secondary treatment, which is a standard biological process for reducing organic matter and suspended solids. The plant is situated in the southeastern region of Brazil, an area characterized by rapid urbanization and industrial activity. The plant's treatment process is secondary, which typically involves biological degradation of organic pollutants. The plant's discharge volume of 276.48 cubic meters per day indicates a modest scale. In Brazil, wastewater treatment plants are regulated under federal and state environmental laws, including CONAMA resolutions, which set standards for effluent quality and receiving water body protection. The treated effluent from ETE Santa Maria Sumaré is discharged into local water bodies that eventually drain into the Piracicaba River basin, a major tributary of the Tietê River. The Tietê River flows through the state of São Paulo and ultimately reaches the Paraná River basin, which is ecologically significant for its biodiversity and role in regional water supply. The plant's operation helps protect downstream aquatic ecosystems from untreated sewage pollution.

The plant discharges into the Piracicaba River basin, which flows into the Tietê River, a major waterway in São Paulo state. The Tietê River eventually joins the Paraná River, supporting diverse aquatic life and providing water for millions of people. The region's watershed is under pressure from agricultural runoff and urban development, making effective wastewater treatment critical for maintaining water quality and ecological balance.