In what situation would an operator most likely use complete maps?

Using complete maps is particularly valuable when isolating problem areas in a water distribution system. These maps provide comprehensive information about the layout of the system, including the locations of pipes, valves, hydrants, and other critical infrastructure components. When an operator encounters issues such as leaks, low pressure, or water quality concerns, having access to detailed maps allows for rapid identification of the affected sections of the system. This comprehensive view aids in efficiently determining how to isolate certain sections, assess the situation, and implement necessary repairs without extensive guesswork or trial and error.

In contrast, while complete maps may assist during routine maintenance, they are not the primary tool used for regular tasks, which might be based on planned procedures rather than extensive mapping. During the installation of new fixtures, the operator typically relies on specific installation guidelines, and while maps are useful, the immediate focus is on the connection to existing systems. Similarly, budgeting also requires a different set of data and analysis that might not inherently depend on complete maps; instead, financial assessments are based on projected costs rather than the physical layout of the system.