- construction of a wastewater treatment plant and extension of the sewerage network in the city of Siliana, within the framework of the second bid package of the Project of Sanitation of 11 Cities, at a cost of about 8.3 million TND;
- construction of a controlled landfill in the city of Siliana, within the framework of the second bid package of the Project of Sanitation of 11 Cities, at a cost of about
1 million TND;
- construction of a wastewater treatment plant and extension of the sewerage network in the city of Gaafour, within the framework of the third bid package of the Project of Sanitation of 11 Cities, at a cost of about 7.5 million TND.
- Sanitation of 31 popular quarters .

- Construction of a wastewater treatment plant and reinforcement of the sewerage network and realization of a transfer system in the city of Bouarada, within the framework of the project of sanitation of small and medium-sized towns, at a cost of 5.5 million dinars.

- Construction of a wastewater treatment plant, rehabilitation and reinforcement of the sewerage network and realization of a transfer system in the city of Makthar, within the framework of the project of sanitation of small and medium-sized towns, at a cost of 12 million dinars.