The main purpose of the study developed in 2020 was to quantify the impact of potential climate change on water distribution networks and identify solutions to improve the resilience of the network itself. To determine the probability of occurrence of intensive or prolonged droughts in Emilia-Romagna and to interpret their impact on Hera's supply sources, it was necessary to carry out an analysis of the statistical characteristics of the precipitation series as well as the series of surface runoff and of groundwater levels. The analysis was aimed at defining both the methods, in a statistical sense, with which droughts occur, and the delay with which these affect the various sources of Hera's supply. The results consist of design indications regarding, for example, the optimal balance between surface and underground supplies, network connections, the need for additional reserves or alternative supply sources. The data, the information collected and the studies carried out in 2020 are preparatory to the project planned in 2021 for the creation of a predictive model and a digital remote control dashboard on the 183 consistency of groundwater and surface water resources, by also collecting data in real-time coming from the environment (rivers, aquifers and climate) and their subsequent processing for better management of the water resource in the distribution networks in the event of environmental emergencies.