During DWA‘s Water Management seminar ‘Entwässerungskonzepte und Sanierungsplanung’ from 28 February until 2 March, IWR’s Mr Kleine-Tebbe on three consecutive days took part in fascinating discussions about the contemporary challenges and goals of urban water management. Important topics were rainwater treatment with regard to the upcoming working paper DWA-A 102 as well as innovative concepts for dealing with heavy rain events and corresponding preventive measures in urban areas.