Revision of the water distribution network and related facilities in Region 1 Water and Wastewater Authority of Tehran Project name: Revision of the water distribution network and related facilities in Region 1 Water and Wastewater Authority of Tehran Status Completed Registration Date 2018/09/30 Update Date 2019/11/27 Manager Tehran Province Water and Wastewater Co. Region 1 Goals Modeling the current water supply situation in the area and identifying weaknesses in the network and resolving them; Investigating population growth and urban development in the area, and designing a water distribution network to meet future requirements at the end of the plan period; Undertaking District Metered Area (DMA) studies in the region. Schedule 1st and 2nd Phase Studies Executive Actions Current population (2011): 1,277,901 Estimated population by the planning horizon (2031): 2,237,919 Plan area size: 12,432 Hectares Users: 122,000 Persons Geography Location Region 1 Water and Wastewater Organization of Tehran (Regions 1, 2, 3, 4 and 6 of Tehran Municipality)