Construction Works, Rural Water Supply and Wastewater Treatment Program (Ajara)

Requested construction works:

Lot 1:

• water supply: construction or reconstruction of 10 water intakes on rivers with a capacity of 10 or 25 l/s; construction of 2 water production wells with a capacity of 15 and 20 l/s; construction of 50.3 km raw water transmission pipelines DI and HDPE DN 125 to DN 200;  construction of 5 drinking water treatment plants including rapid sand filtre and disinfection with a capacity of 31 to 81 l/s; construction of 50.3 km drinking water transmission pipelines DI and HDPE OD 63 to DN 125; rehabilitation or construction of 12 reservoirs with a capacity of 200 to 690 m3; construction of 123.4 km drinking water distribution network HDPE OD 25 to OD 250; construction of 46.6 km private and public service lines with 2,819 service connections
• sanitation: construction of 453 house connections with 12.8 km service connection pipelines OD 110 - OD 160; construction of 26.3 km sewer network OD 110 to OD 200; construction of 3 sewage pumping stations with a capacity of 4 l/s each; construction of 8 vertical flow constructed wetlands wastewater treatment plant (batch feeding of raw wastewater and alternation of used filter beds) with a capacity between 200 and 2,00 pe and one rotating biological contactor treatment plant with a caoacity of 2,000 pe; construction of about 1,200 individual onsite sanitation facilities with septic tanks and infiltration trenches; construction of office buildings and storehouses; supply and installation of a centralized SCADA system