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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

No irrigation at all

Hello, in my project there will be no irrigation at all because of the adapted plants plant in all the green roofs. How do we demonstrate the achievement of the credit? Which documents must we submit for the compliance? Thanks

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Susann Geithner
Principal
Emerald Built Environments
LEEDuser Basic Member
900 thumbs up

Thu, 06/02/2011 - 15:18

We submitted a statement from the landscape designer along with pictures of the temporal irrigation (small trucks with water tanks) during the plant establishment. That was sufficient for the reviewers.

Fri, 06/03/2011 - 08:27

Thank you Susan. Very usefull your answer!

Tue, 12/06/2011 - 19:55

We are planning our landscaping with native/adapted plants and we are not going to install permanent irrigation. During dry times of the summer, we may want to handwater plants using small trucks with water tanks to keep the landscaping from going brown. Is this acceptable if we want to achieve all 4 points on this credit?
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Manny Iglesia
LEED BD+C O+M
Carde Ten Architects
LEEDuser Basic Member
74 thumbs up

Tue, 12/06/2011 - 20:13

No potable water use or no (long term) irrigation for a possible 4 points still require you to show the planting layout/pallete that proves you are taking advantage of native/drought tolerant plants, and are actually doing a real landscaping less the water. If you are manually watering the plants (actually planted in the soil), I guess you need to provide a schedule (name of person and his schedule). Seriously, achieving the 4 points should reflect the sustainability of the design level you are trying to achieve.

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