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.
