sorted waste
over an area with 3.1 million
waste recovered
the amount of sorted waste
recuperated, going towards
a circular economy
thousand tons of CO2 avoided
with the plastic recycled
by Aliplast

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.

Water fed into the network, by source
Thousand of m3 2016 2017 2018
Groundwater 226,314 53.6% 239,043 55.6% 223,777 53.1%
Surface water 166,309 39.4% 164,887 38.3% 165,414 39.2%
Springs and minor sources 29,460 7.0% 26,146 6.1% 32,558 7.7%
Total 422,083 100% 430,076 100.0% 421,749 100.0%

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.

Water network components
% 2016 2017 2018
Plastic material 52.9% 53.1% 53.7%
Asbestos-cement 20.9% 20.8% 20.5%
Steel 17.0% 16.9% 16.6%
Cast iron 8.4% 8.4% 8.5%
Other materials 0.8% 0.8% 0.7%
Total 100.0% 100.0% 100.0%

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.