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FAQs about WEp1 :

The EPA WaterSense methodology and calculator allows only certain types of irrigation to be assigned to certain vegetation types. Why is this and won’t it skew results?

What if we just have a little green area on our rooftop? Is there a minimum amount of landscaped area to earn the prerequisite and credit?

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NC-v4 WEp1:Outdoor water use reduction

"Fixed Spray irrigation only permitted on Turfgrass"

When the Watersense Water Budget Tool is completed with 'fixed spray' selected as irrigation type for trees and shrubs, it produces a warning in red text that says, "Fixed Spray irrigation only permitted on Turfgrass." Does that mean the prerequisite will be denied? I don't see it mentioned in the reference guide. It seems to allow 'microspray' on tree and shrub areas.

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Afogreen Build
www.afogreenbuild.com
Green Building Consultant
LEEDuser Premium Member
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Thu, 07/29/2021 - 09:53

Hi Green Project, The warning in the red text appears because the fixed spray is not allowed to be used as an irrigation type for trees, shrubs, and groundcover. You can check on the tab "Equations & Tables" in your Watersense Water Budget Tools, there is Table 4 showing allowable irrigation types.

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