Which of the following is the most appropriate use of untreated stormwater?

Untreated stormwater, due to its potential contaminants, is not suitable for potable uses but can be

effectively utilized for non-potable applications such as irrigation. It provides a viable alternative to

using treated water for landscape irrigation, thereby conserving potable water resources. This use

aligns with sustainable water management practices encouraged by LEED, which promote the

reduction of potable water usage for landscape irrigation.

Reference:

The LEED Reference Guide for Green Building Design and Construction and the LEED O+M Reference

Guide both encourage the use of untreated stormwater for irrigation as part of an integrated water

management approach. This conservation strategy is covered under the Water Efficiency category

and is a common topic in LEED AP O+M training sessions.