During DWA‘s Water Management seminar ‘Entwässerungskonzepte und Sanierungsplanung’ from 28 February until 2 March, IWR’s Mr Kleine-Tebbe 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.