Water efficient landscaping | U.S. Green Building Council
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LEED O+M: Existing Buildings | v3 - LEED 2009

Water efficient landscaping

WEc3 | Possible 5 points

Recertification Guidance

Projects should refer to the following credit compliance guidance when planning for recertification. The table outlines the establishment and performance requirements and details the preferred frequency and duration of each performance requirement. Recertification is based on compliance with performance requirements. For the complete set of guidance, refer to the LEED for Existing Buildings: Operations & Maintenance Recertification Guidance.

Credit Establishment requirements Performance requirements
WEc3: Water efficient landscaping Building components and site infrastructure
Have in place landscaping and/or irrigation systems that reduce use of potable water for irrigation. If project does not have irrigation water meter, demonstrate reduction through theoretical calculations.
Ongoing tracking
If project has irrigation water meter and is pursuing Option 1, track irrigation water use. Compare irrigation baseline with building’s actual irrigation potable water use. Using same set of months as in baseline calculation, provide metered data from most recent set in recertification performance period.