Hera Group’s water supply sources include underground water, surface water and, to a lesser extent, springs. In Romagna, the distributed water is purchased wholesale from Romagna Acque – Società delle Fonti.
The complexity of drinking water purification processes varies depending on the quality of the source water: they range from advanced chemical and physical processes, usually used for surface water, to simpler filtration and disinfection treatments for water coming from deep wells and springs that is already of good quality when collected.
The treatments carried out ensure that the product we distribute has suitable chemical physical and microbiological features for human consumption, and is constantly compliant with the limits laid down by current regulations.
|Thousand of m3||2016||2017||2018|
|Springs and minor sources||29,460||7.0%||26,146||6.1%||32,558||7.7%|
Figures concern both the civil and the industrial aqueduct networks (the latter being present in the Forlì-Cesena, Imola-Faenza, Modena and Ravenna areas, and account for around 3% of the total).
The data provided shows a total volume of water fed into the network slightly down compared to 2017 (-1.9%), and in line with 2016. The mix of supply sources is substantially unchanged. The less dry period of 2018, compared to 2017, however led to a greater rebalancing of sources with less use of groundwater (-6.4%) compared to 2017. From a geographical point of view, the share of groundwater is lowest in the Marche Multiservizi area (19%), while it is predominant in the Triveneto area (85%).
Limiting the analysis to domestic consumption in Emilia-Romagna only, it is interesting to note that in the 2008-2017 period the water sold decreased significantly, by 7.0%.
Hera Group’s distribution network covers 35,144 kilometres and, where possible, is interconnected and linked in order to ensure supply continuity even in the event of temporary interruptions of one or more pipelines.
The amount of asbestos cement in the water network is continuing to decrease, and accounted for 20.5% of the Group’s share in 2018. The slight decrease is due to use of materials other than asbestos cement in new networks or in those subject to extraordinary maintenance. Over the last 3 years the Group has replaced approximately 60 kilometres of asbestos cement mesh.