Water utilities are part of the organisational structure for water supply in towns and cities. The water utilities have a duty to provide the water supply (and sewerage services) promptly, at appropriate cost, and with a high quality.

A water utility may have several departments (Figure 6.2):

Figure 6.2 Example of an rganisational structure for urban water supply.

While all the above departments are important, an effective and efficient Operation and Maintenance Department is vital to ensure that people receive good-quality water continuously each day. This function will be the focus of the next section.