C
Landscape
Documentation: The Rater will collect a specification or irrigation plan that specifies the type of sub-meter installed.
INTENT To support water conservation by measuring the amount of water used specifically for landscaping.
C11. LANDSCAPE MEETS WATER BUDGET
DRAFT
CRITERIA FOR QUALIFICATION
Note: Measure C1,“ Plants Grouped by Water Needs( Hydrozoning),” and measure C2,“ Three Inches of Mulch in Planting Beds” are prerequisites for this measure.
Up to two points of credit are available if the landscape includes an irrigation system whose water budget meets one of the following thresholds:
� ≤ 0.65 Reference Evapotranspiration( ETo)— One point � ≤ 0.50 ETo— Two points
The landscape professional must do the following:
� Estimate the amount of water that will be needed by a particular landscape design on a specific site
� Use an approved methodology provided in the Updated Model Water Efficient Landscape
Ordinance AB 1881 or a local water efficient landscape ordinance � Ensure that the design can be compared to a water budget � Ensure the water budget is met by incorporating hydrozoning, high efficiency irrigation, a native plant palette, and other best practices.
VERIFICATION
Field Verification: The Rater will complete field compliance verification for design elements of this measure and all prerequisites, and take photos of landscape areas.
Documentation: The Rater will collect the following:
� An Accountability Form signed by the landscape architect or irrigator � Calculations demonstrating the ETo level of the project
INTENT
To design a landscape that uses a performance approach based on site-specific conditions to significantly reduce irrigation needs.
DRAFT GreenPoint Rated New Home Rating Manual Version 6.0, September 2013 21 © Build It Green