How is the baseline for irrigation water use typically determined in LEED?

The baseline for irrigation water use in LEED is determined by evaluating factors such as the specific plant species chosen for landscaping, the local climate conditions, and the established watering requirements in the area. This approach recognizes that different plants have varying water needs and that local climate conditions significantly influence how much water is necessary for irrigation. By considering these aspects, projects can create a more accurate and realistic baseline that reflects actual water conservation practices and the unique characteristics of the site. This tailored assessment helps promote efficient water usage and encourages the use of native or drought-tolerant plants, reducing overall irrigation demand.