Open Procedure, For The Conclusion Of A Framework Agreement With A Single Economic Operator For Lotto, For The Assignment Of The Conservative Maintenance And Efficiency Works Of The Network Infrastructures Of The Integrated Water Service And Of The Construction Of New Connections, In The Municipalities Of The Macro Southern Area Of ​​The Regional Territory, Lasting 36 Months, Divided Into 5 Lots. Ref. App. Pa 11/2025.