This consultation concerns the renovation of the sand filtration unit (Unit 2 and Unit 3) of the Choisy-Le-Roi drinking water production plant

The work concerns the renovation of the filter room and the exterior facades, and in particular the replacement of the 18 filter floors of unit 2 and the 9 filter floors of unit 3 pair, the removal and evacuation of the old floors as well as the renovation of the 27 filters and the rehabilitation of the civil engineering works

The works concern the renovation of the Polhydras Gallery and the Central Gallery, and in particular the replacement of the Polhydras, obsolete valves and associated pipes, the complete rehabilitation of the civil engineering and finishing works, the complete replacement of obsolete electrical equipment and the restructuring of the automation systems