Over decade, most of Government in the Developing countries have provided major infrastructure financing, including the provision of urban water supply (UWS) projects. In fact, the annual UWS development budgets have not been adequate to kept pace with the rapid increase in demand for development and operation of water projects. The operation and maintenance the existing water projects have also not been achieved in balance the UWS stakeholders'' objective. Political pressures have strongly influenced on strategic developments in the water industry, and fluctuations in economic growth rates and prices have become ubiquitous. In these uncertain and volatile environments this book identified a range of sustainability elements, but has chosen to place most emphasize on five. These five fundamental elements offer opportunity for success in the financing, operation and maintenance of urban water supply toward sustainable UWS projects. This book may assist government officials, water supply professionals and managers, university students, and NGO officials some light in financing, operation and maintenance of urban water supply schemes in a sustainable sound.