ETE FRIBOI Wastewater Treatment Plant, Andradina, São Paulo, Brazil

ETE FRIBOI is a wastewater treatment plant located in Andradina, within the state of São Paulo, Brazil. The plant serves a population of around 12,269 people, placing it in the small to medium agglomeration category for Brazilian wastewater infrastructure. Brazilian wastewater treatment plants of this scale typically operate under federal regulations (CONAMA resolutions) and state-level environmental agencies. The plant's designed capacity of 1.00 suggests it is sized for the local community's needs, though the unit of measurement is unspecified. The plant discharges into the local watershed, which is part of the Paraná River basin, one of the largest river systems in South America. The treated effluent ultimately flows into the Paraná River and then to the Río de la Plata estuary, supporting diverse aquatic ecosystems along the way.

The plant's discharge enters the Paraná River basin, a major hydrological system that drains into the Río de la Plata estuary. This watershed supports diverse aquatic life, including migratory fish species, and provides water for agriculture and communities downstream. The region's tropical climate and agricultural activities influence water quality management needs.