ETE Jequié Wastewater Treatment Plant, Jequié, Bahia, Brazil

ETE Jequié is a municipal wastewater treatment plant located in Jequié, Bahia, Brazil. The plant serves a population of approximately 98,207 people, placing it in the medium-to-large agglomeration category for the region. It is situated in the northeastern part of Brazil, an area characterized by a tropical climate and seasonal rainfall patterns. Brazil's wastewater treatment sector is regulated by federal laws such as the National Basic Sanitation Law (Law 11.445/2007) and the National Environmental Council (CONAMA) resolutions. For agglomerations of this scale, secondary treatment is typically required to meet effluent standards before discharge. It operates under the national regulatory framework that mandates appropriate treatment levels for population equivalents of this size. The plant discharges treated effluent into local water bodies that ultimately drain into the Atlantic Ocean. The region's watershed supports diverse aquatic life and is important for local communities. Proper treatment at ETE Jequié helps protect downstream water quality and contributes to the environmental health of the Contas River basin, which flows into the Atlantic near the city of Itacaré.

The treated effluent from ETE Jequié likely discharges into the Contas River basin, which flows through Bahia state and empties into the Atlantic Ocean near Itacaré. This watershed supports a variety of freshwater and estuarine species, including fish and crustaceans important for local fisheries. The plant's operation helps reduce nutrient and pathogen loads entering the river, protecting downstream ecosystems and recreational water quality.