The result of this idea is the citizen service wassertand.info, which offers emergency services more lead time and warns citizens via SMS. It can be accessed via the website wassestand.info. Among other things, the water levels of the rivers Melk, Mank and Kleine Erlauf are displayed there in real time. These rivers were equipped with measuring stations that send the water level values to the wasserstand.info platform at regular intervals. The fire brigade determines the value above which an initial alert should be sent to them. After analysing the situation, it forwards the alarm in case of emergency via SMS to all citizens who have registered free of charge with their mobile number on wasserstand.info.