Monitoring, Digitalization And Reduction Service Of Water Losses In The Ato 4 Cup Networks E61D22000030002–Code Pnrr–M2C4–I4.2_250. Lot 1: Digital Survey Service. Modeling Districtalization Research And Control Of Losses In The Water Network And Supply And Installation Of Flow Meters And Smart Meters. Phase1-Survey And Digitalization Of The Water Network