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NC-v4 WEp1:Outdoor water use reduction

Negative value of Monthly Landscape water requirement?

Dear all, I am performing the calculation for the Water Outdoor Prerequisite, with both excel for a Project located in Italy (Rome): 1. Water budget tool (downloaded from EPA) 2. v4_Outdoor Water Use Reduction Calculator I get a negative value for LWR, I suppose that for this reason I don't need any irrigation, is it true? Does anyone have experience on that? Thanks!

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Alan Scott
Senior Associate
WSP
LEEDuser Basic Member
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Thu, 03/17/2016 - 18:34

A negative value for LWR likely indicates an error in data entry to the calculator. The values for both LWA and LWR should both be 0 or higher. With additional information, we may be able to help you pinpoint the source of the error.

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