The Fungalvaz system is currently composed of three septic tanks, a floodbed sewage treatment plant and a drainage network. The operation envisages the elimination of existing tanks and sewage treatment plants, and the construction of a sewage plant in a new location to which all effluents of the system will be routed. This solution aims to reduce urban pollution in the body of water associated with the Fungalvaz system, the Nabão River (PT05TEJO923).