In addition to the new work described above, we would like to mention what we have done in recent years, which has made it possible to cope with a particularly dry summer in 2017, an exceptional condition that could occur again in the future. In the Apennines, the Modena area has been equipped over the years with infrastructure designed to manage the water requirements and the original municipal aqueducts have been interconnected so that the physical integration of each of them makes up an infrastructure system capable of mutuality and subsidiarity. In the Apennines area near Bologna, on the other hand, the interconnection with the Modena system, the construction of two new pumping plants in the municipality of Guiglia and in particular the construction of a new storage and pumping plant in the Monte Severo (Monte San Pietro, BO) area, have made it possible to reduce reliance on tanker trucks to supply water tanks in the mountains. In 2019, Hera Spa's service area, 726 m3 were distributed to manage water shortages or drought of the source, which represents about 0.00023% of the volume fed into the network. In Romagna, where Hera operates mainly as a distributor, Romagna Acque Societˆ delle Fonti built the "Standiana" drinking water plant (capable of treating a flow of 1,100 l/sec) in the Ravenna area in response to the problem of water reserves on the Adriatic coast, a major tourist destination, supplementing the Ridracoli feeding system.