In-Depth Analysis of Water Management Challenges in Selected Cities 103
Figure 4.14 Schematic of the Proposed Water Supply and Sanitation System for a New Planned Development Cluster in Arua, Uganda A2 A1
A3 A9
A4 A6
A8 A7
A5
Area=366 ha Population=14,652 persons Density=40 persons/ha Demand=1,095 m3/d
Discharge to the river (226 m3/d) Potable water (1,095 m3/d) Biogas production
Blackwater (266 m3/d)
WM-2 WM-1
Greywater (389 m3/d) Surface water (445 m3/d) Groundwater (261 m3/d)
Source: World Bank. Note: The figure presents the different technologies used as part of the proposed water supply and sanitation system for a new planned development cluster in Arua, Uganda, as a typical example of an urban cluster with access to surface water for dilution. The top left-hand corner figure shows the existing built-up area A9 in dark gray and the proposed development cluster A8 in light gray. Technologies used in water management 1 (WM-1) were DEWATS with SAT and a conventional treatment unit (or with advanced treatment); and technology used in WM-2 was DEWATS. Equivalent annual cost of proposed technologies is US$325,182. ha = hectares; m3/d = cubic meters per day.
The steps identified in the road map for implementation of the strategy were: acquire key information, create stakeholder platform, identify project champion, and design and develop demonstrations. It is crucial that the strategy be considered early on during the urban planning phase of the emerging areas in Arua. It is also critical that work on watershed protection for the relevant micro-watersheds be undertaken immediately before irremediable deterioration occurs. Critical to the success of the roadmap is the early and continuous integration of all stakeholders in the planning, decision, and implementation process of the IUWM strategy. Similar to Mbale, in Arua, a stake-