Acknowledgements

The following people are most sincerely acknowledged for contributing to this paper in various but very valuable forms: Prof. Fred A.O. Otieno from Masinde Muliro University, Ms. Malebo D. Matlala, and Prof. Kevin Mearns – both from UNISA, Prof. Jannie Maree from Tshwane University of Technology, Mr. Phillip Hobbs, and the entire team at the Randfontein experimental treatment plant. The following organizations are acknowledged sincerely: Department of Water and Sanitation and Hydrology Section, USGS, CGIAR Consortium for Spatial Information, ESRI-South Africa, South African Weather Services and the South African Demarcation Board.
