Pervious surfaces, including landscaping, pervious pavers and drivable grass pavers, account for over 85% of the non-building site area. The roof area not occupied by photovoltaics has been planted and drains to the pervious site area. This has resulted in 57% of precipitation managed on site.
As expected, the drought resistant native/adaptive plants no longer require irrigation. Excluding the restaurant process water use, the water usage within the building has remained consistent with design assumptions, with a use of 97,240 gallons per year in 2009, the first full year of occupation.
Metrics
Percent reduction of regulated potable water:
23%
Is potable water used for irrigation:
No
Percent of rainwater from maximum anticipated 24 hour, 2-year storm event that can be managed onsite:
57%