interventions due to network failure planned interventions 73 interventions network extension 0 km of expanded network network reclamation 4.85 km of reclaimed network wastewater quality control 7,326 samples collected and 52,488 tests performed 102 ACEA GROUP / SUSTAINABILITY REPORT 2020 and reprogrammed the PLCs (Programmable Logic Controllers) of the existing sewage lifting stations and started implementing remote control on 4 stations; this activity will continue in 2021 as well.