ETE TARABAI Wastewater Treatment Plant, Tarabai, São Paulo, Brazil

ETE TARABAI is a wastewater treatment plant located in Tarabai, within the state of São Paulo, Brazil. The facility serves a population of approximately 5,927 people, classifying it as a small agglomeration under Brazilian sanitation standards. It is situated in the southeastern region of the country, near the city of Presidente Prudente. The plant provides secondary treatment, which is the standard level required for municipal wastewater in Brazil under the National Environmental Council (CONAMA) resolutions. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent from ETE TARABAI is discharged into local water bodies that eventually drain into the Paraná River basin, one of South America's major river systems. This basin supports diverse aquatic ecosystems and is important for agriculture, industry, and water supply in the region. The plant plays a key role in protecting downstream water quality and public health.

The plant's discharge enters local streams that flow into the Paranapanema River, a tributary of the Paraná River. The Paraná River basin is a vast hydrological system that supports wetlands, floodplains, and diverse fish species. The region's aquatic habitats are sensitive to nutrient pollution, making secondary treatment essential for maintaining ecological balance. The plant's operation helps reduce organic load and protect downstream water quality.