* increase discharge from 51000 to 102000 m3/day. Extension of the existing plant by construct : * distribution well , 4 clarifiers * 10 filters * 1 ground reservoirs 10800 m3 capacity * tanks to collect sludge * 1 sludge condenser * 1 chlorination buiding *condenser **Potable water networks : * PE pipelines of dia 280 : 800 mm with length 25.4km * Polester pipelines of dia 800: 1200 mm with length 5.5 km