In what situation can a LEED project earn points for using on-site water treatment systems?

A project can earn points for using on-site water treatment systems when they contribute to decreasing demand for potable water. This practice aligns with the principles of sustainable water management emphasized in the LEED rating system. By reducing reliance on potable water sources, on-site water treatment systems can effectively lower overall water consumption, which is a key goal in promoting water efficiency. Systems that treat and reuse water, such as graywater systems or rainwater harvesting, not only alleviate the demand for potable water but also enhance the project’s sustainability and resilience against water scarcity.

When on-site water treatment systems are implemented with the intention of reusing water, they help in conserving water resources, which is vital for environmental sustainability. In contrast, systems that increase potable water demand or serve solely aesthetic purposes do not fit this purpose and do not earn points in the LEED framework. Additionally, backup systems that do not actively contribute to lowering water demand are not aligned with the intent behind the points awarded for water efficiency measures.