Open Procedure, Pursuant To Art. 71, Legislative Decree. 36/2023, For The Awarding Of The Purge, Cleaning And Disinfection Service Of Tanks, Canals, Wells, Tanks, Network Pipes, Plants And Pumping Stations In The Municipalities, Plants And Territory Of Competence Of Asm Voghera S.P.A. Including Purification Plants, Ofmsw Plant And Urban Hygiene Vehicles Area With The Methods Described In The C