Work to upgrade feeders and main drinking water pipes in two lots: •Lot No. 1: Al Maghreb Al Arabi Reservoir Section - Stage 3, and Sidi Azzouz-Errachad Reservoir, pipes with diameter DN≤ 225; •Lot No. 2: R3 Reservoir Section – DN 400 diameter Swimming Pool Pumping Station. Lot n°3: Section R2-R2BIS AND MAGOUSSA-R2BIS with diameter DN≤ 225 (EXPIRED)