t Total electricity for drinking water GWh 63.20 71.86 71.46 -0.6 electricity for water pumping stations GWh 62.85 71.49 71.08 -0.6 electricity for offices GWh 0.36 0.37 0.38 2.7 CERTIFICATIONS Umbra Acqua has implemented an Integrated Quality, Environment and Safety Management System (QAS) in compliance with the UNI ISO 9001:2015, UNI ISO 14001:2015 and BS OHSAS 18001:2007 standards.