ETE JAMBEIRO Wastewater Treatment Plant, Jambeiro, São Paulo, Brazil

ETE JAMBEIRO is a municipal wastewater treatment facility located in Jambeiro, within the state of São Paulo, Brazil. The plant serves a population of around 2,573 residents, classifying it as a small-scale treatment operation under Brazilian environmental regulations. The plant employs secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. The reported discharge volume of 358.63 cubic meters indicates consistent operation. Brazilian wastewater treatment plants are regulated by CONAMA resolutions and state environmental agencies, with secondary treatment being the standard for urban areas. The treated effluent is discharged into local watercourses that ultimately flow into the Paraíba do Sul River basin, a major water resource for southeastern Brazil. This river supplies drinking water to millions and supports diverse aquatic ecosystems. The plant's operation helps protect downstream water quality and public health in the region.

The plant discharges into the Paraíba do Sul River basin, which drains into the Atlantic Ocean near Campos dos Goytacazes. This watershed is ecologically significant, supporting diverse fish species and providing water for agriculture and urban centers. The secondary treatment reduces organic pollution, helping maintain the river's ecological balance and preventing eutrophication in downstream coastal areas.