Rating System

LEED BD+C: New Construction

Rating System Version

v2 - LEED 2.0

Inquiry

We wish to meet the intent of WEc1.2 by irrigating entirely with non-potable water. To do this, we will provide on site storage for rainwater and/or groundwater from the basement de-watering system. The storage will be sized to provide irrigation for the project in all normal years. However, in drought years, if the tank does not fill up with enough water to meet our irrigation requirements, we would like to have a backup system that relies on potable water. Note that if groundwater is used (and we may rely entirely on rainwater storage, depending on the outcome of our study of groundwater volume to be conducted this summer during the dry months), it will not be "potable" as it could not be used for drinking without a well permit which is difficult to obtain and will not be sought for this project.\n\nWe propose to document the plant types, the irrigated area, and the typical rainfall (or groundwater volume) for a "normal year," along with the catchment area and the storage tank size, to show that we have designed a system that can provide for all our irrigation needs in a normal rainfall year. Please confirm that this strategy meets the intent of WEc1.2, even if it is connected to a potable water system for backup in drought years.