How is "potable water" defined in LEED Water Efficiency?

In the context of LEED Water Efficiency, "potable water" is defined as water that is suitable for human consumption. This includes water that meets health and safety standards established by regulatory agencies, ensuring that it is safe for drinking, cooking, and personal hygiene purposes. By emphasizing the importance of potable water, LEED focuses on promoting the responsible use and conservation of this vital resource, supporting sustainable practices in building design and operation.

The other options provided do not align with this definition. Untreated water, for example, may not always be safe or suitable for consumption, as it can contain contaminants. Water collected from industrial processes may be unsafe for human use and is typically not classified as potable. Lastly, water used solely for irrigation is generally non-potable, as it is intended for landscaping and agricultural purposes rather than human consumption. Understanding the distinction between potable and non-potable water is crucial for implementing effective water efficiency strategies in LEED projects.