ETE Guapiara Wastewater Treatment Plant - Guapiara, São Paulo, Brazil

ETE Guapiara is a municipal wastewater treatment plant located in Guapiara, a city in the state of São Paulo, Brazil. The plant serves a population of about 4,208 people, classifying it as a small-scale facility within the region's sanitation infrastructure. It operates under Brazil's national environmental regulations, which mandate secondary treatment for urban wastewater to protect public health and water quality. The plant provides secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. The plant's discharge volume is recorded at 478.86 (likely cubic meters per day or similar unit). As a secondary treatment facility, it meets the basic standards required for inland discharge in Brazil, aligning with the country's framework under CONAMA resolutions and state-level environmental agencies. The treated effluent from ETE Guapiara is discharged into local water bodies within the Ribeira de Iguape River basin, which flows through the Atlantic Forest region. This watershed is ecologically significant, supporting diverse aquatic life and providing water resources for downstream communities. The plant's operation helps reduce pollution loads in the basin, contributing to the preservation of this sensitive ecosystem.

The plant discharges into the Ribeira de Iguape River basin, which drains into the Atlantic Ocean near the coast of São Paulo. This watershed is part of the Atlantic Forest biome, a biodiversity hotspot with high endemism. The river supports important fish populations and provides water for agriculture and human consumption. Proper wastewater treatment is crucial to prevent nutrient enrichment and contamination that could harm aquatic ecosystems and downstream water quality.