What are the benefits of reducing potable water use in buildings?

Reducing potable water use in buildings offers significant financial benefits, as highlighted in the correct choice. When potable water consumption is decreased, the overall water bills for the building are lowered. Furthermore, through efficient water management practices, buildings can minimize costs associated with water heating, plumbing maintenance, and water treatment. These savings contribute directly to decreased operating costs, making buildings more economically viable over the long term.

While other benefits might also be associated with water efficiency, such as improved indoor air quality from better water management systems or potential enhancements in energy efficiency due to reduced need for water heating, the direct correlation between reduced water use and lower building operating costs is particularly strong and quantifiable.