Evaluating alternatives for extending the drinking water supply in Uganda
A multidisciplinary project
R.M. Besseling (TU Delft - Civil Engineering & Geosciences)
J. van Marrewijk (TU Delft - Civil Engineering & Geosciences)
M. Slokker (TU Delft - Civil Engineering & Geosciences)
I.A. van der Zwet (TU Delft - Civil Engineering & Geosciences)
Edo Abraham – Mentor (TU Delft - Water Resources)
H. M. Jonkers – Graduation committee member (TU Delft - Materials and Environment)
Juan Aguilar Aguilar-López – Graduation committee member (TU Delft - Hydraulic Structures and Flood Risk)
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Abstract
In many places in Uganda, people do not have a connection to the drinking water supply system and there is a lack of treated water supply, meaning that people only have access to water a certain part of the day. As a result many people rely on springs, handpumps, rivers or lakes, of which the quality cannot be monitored or controlled.
During this multi-disciplinary project, we worked together with the National Water & Sewerage Corporation (NWSC) and the Ministry of Water and Environment (MWE) to research the possibilities of extending the water supply system of two project areas, Bugiri District and Hoima City. The current water supply in both areas use groundwater as a source and the possibilities for the extension also consider using surface water besides groundwater.
The different alternatives for the extension of the water supply in Hoima City and Bugiri District are evaluated using a multi-criteria analysis (MCA), consisting of a financial analysis, a performance analysis and a risk analysis. By evaluating the different options using an MCA, the decision-making process can become less complicated.
The MCA-tool that is set up in this research can be used by engineers to study different areas in Uganda and make it easier to compare different options for the extension of a drinking water supply system in an early design stage. The tool is for the two project areas as examples, after which it is also tested during a case study with engineers from both NWSC and MWE. Useful feedback came out of this session which will be used to finalize the tool and elaborate on it.
To design the different alternatives for the project areas and to get insight into the drinking water supply of Uganda, Hoima and Bugiri are visited at the beginning of the project.
For both project areas, it is recommended to improve the operational performance of the already existing groundwater supply system as a short-term (5 years) solution. The long-term (25 years) solutions consider groundwater options as well as surface water options, using for example Lake Victoria, Lake Albert and River Nile as water sources.