ETE PIRANGI Wastewater Treatment Plant, Pirangi, São Paulo, Brazil

ETE PIRANGI is a wastewater treatment plant located in Pirangi, within the state of São Paulo, Brazil. The facility serves a population of approximately 9,528 people, making it a small-scale municipal treatment operation in the interior of the state. The plant is situated in the Região Imediata de Catanduva, part of the broader São José do Rio Preto region. As a Brazilian treatment plant, ETE PIRANGI operates under the national regulatory framework established by the Ministry of Cities and state environmental agencies such as CETESB in São Paulo. For a plant serving fewer than 10,000 people, secondary treatment is typically required to meet discharge standards. It is expected to comply with CONAMA Resolution 430/2011, which sets effluent quality standards for wastewater discharges. The plant's treated effluent is discharged into local water bodies that drain into the Paraná River basin, one of the major river systems in South America. The receiving waters support agricultural activities and provide habitat for diverse aquatic species. Proper treatment is essential to protect downstream water quality and the ecological health of the Paraná River system.

ETE PIRANGI discharges treated wastewater into local streams that flow into the Paraná River basin, which ultimately drains into the Río de la Plata estuary. The region's water bodies support agricultural irrigation and sustain aquatic ecosystems, including fish populations important for local biodiversity. Effective treatment helps prevent nutrient pollution and maintains water quality in this inland watershed.