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FAQs about WEc1 :

Can non-potable well water that is used for irrigation contribute to potable water reduction?

Can surface water, such as water from an irrigation ditch or a local creek, be used as nonpotable water?

Do interior planters count in the calculation?

We are using non-potable water for irrigation. For drought conditions, can we hook up to a potable water source for backup and still earn this credit?

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CS-2009 WEc1:Water Efficient Landscaping

Average rainfall is sufficient for irrigation

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Ron Dean
Sumac Inc.
LEEDuser Basic Member
20 thumbs up

We have a project in Medellin, Colombia. The project has large areas of vegetation. In the driest month (January), it rains in average 12 of the 31 days. The average rainfall in this month covers 70% of the water demand for irrigation according to the calculation methodology specified in the LEED Reference Guide. Hence only 30% of the water demand will be covered by potable water during this month. Is it possible to achieve the credit under these conditions?

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Tristan Roberts
Representative
Vermont House of Representatives
LEEDuser Expert
7780 thumbs up

Mon, 11/04/2013 - 18:54

Ronald, it is possible to achieve the credit but you have the follow the LEED methodology in order to do so. The way your question is phrased makes me think you should review the credit language and see how you can comply by going through the steps that LEED requires.

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