The urban runoff system will be improved and monitored with a set of new sensors and coupled monitoring of the contamination, water quality & flow within the drainage system. The monitoring platform will prove monitoring scalability and impact on fellow demonstrators. Choice experiments for the stormwater management system upscaling will also take place. Second, nature-based solutions will complete the runoff system. Third, amateur scientists and citizens, in general, will be engaged through monitoring activities of the previous solutions with a crowdsourcing app and screen.