The territory of the Municipality of Dueville was served by a sewage collection system of a predominantly unitary that discharged into the only municipal sewage treatment plant, periodically showing important inputs of eddy water into the pipelines, a phenomenon that was affected both by the variability of the groundwater level and of the interconnection of the minor hydrographic system with the sewage system. Faced with this serious environmental situation, the goal was to study a definitive solution that would involve the complete separation of the entire mixed basin afferent Via Redentore and Via Molinetto, so that the ditch present in Via Molinetto could receive only rainwater and, eventually, discharges from the wells and private groundwater drains. To achieve the goal of separation of black water and storm water, the project included the construction of a new black sewer network serving the built-up area of the hamlet of Povolaro in the Municipality of Dueville. In addition, a lifting plant was designed in Via della Fisca to solve a local problem of delivery to the network and the decommissioning of the two spillways of the original mixed network original mixed network, which delivered overflow water into the local drainage network and which, thanks the separation of the networks by design, have lost their function.
