ETE Taquaral Wastewater Treatment Plant, Cerquilho, São Paulo

ETE Taquaral is a wastewater treatment plant located in Cerquilho, within the state of São Paulo, Brazil. It serves a small population of 309 residents, reflecting its role in a localized community. The plant is situated in the Jardim Nossa Senhora de Lourdes neighborhood and operates under Brazil's national environmental regulations. The plant provides secondary treatment, which is a standard biological process that removes organic matter and suspended solids. The discharge volume of 40.27 cubic meters indicates a modest scale. Brazilian wastewater treatment plants of this size are typically regulated by state environmental agencies, such as CETESB in São Paulo, which enforce discharge standards to protect water quality. The treated effluent from ETE Taquaral is discharged into local water bodies that drain into the Tietê River basin, a major watershed in São Paulo state. The Tietê River flows through the metropolitan region of São Paulo and eventually joins the Paraná River system. This downstream environment supports diverse aquatic life and provides water for agriculture and industry, making proper treatment essential for ecological health.

The plant's discharge enters local streams that are part of the Tietê River basin, which flows westward across São Paulo state. The Tietê River is a vital waterway that eventually reaches the Paraná River, one of South America's major river systems. The surrounding region is characterized by agricultural and urban land use, and the river supports diverse aquatic ecosystems, including fish species important for local fisheries. Proper secondary treatment helps reduce nutrient loading and organic pollution, protecting downstream water quality.