ETE Barra do Choça - Secondary Wastewater Treatment Plant in Barra do Choça, Bahia

ETE Barra do Choça is a municipal wastewater treatment plant located in Barra do Choça, a city in the state of Bahia, Brazil. The plant serves a population of approximately 7,296 residents, making it a small-scale facility within the region's sanitation infrastructure. The plant provides secondary treatment, which is the standard biological process required under Brazilian regulations for communities of this size. Secondary treatment effectively reduces organic pollutants and suspended solids before discharge. The plant operates under Brazil's national environmental framework, which mandates treatment for urban wastewater. The treated effluent is discharged into local water bodies that drain into the broader Rio de Contas basin, eventually reaching the Atlantic Ocean. This contributes to protecting downstream ecosystems and maintaining water quality in the region's rivers and coastal areas.

The plant discharges into the Rio de Contas basin, which flows through Bahia's semi-arid interior and coastal zones before reaching the Atlantic Ocean. The downstream environment supports diverse aquatic life and is ecologically sensitive, particularly in the lower reaches where mangroves and estuaries provide critical habitat. Proper treatment helps mitigate nutrient loading and preserve water quality in this important watershed.