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The credit language says the Option 2 involves a reduction in wastewater. Does that mean that all water, including process water, should be included?

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NC-2009 WEc2:Innovative Wastewater Technologies

Treated (rain) water for human contact...

Profile picture for user jorge.lopez
Jorge Lopez de Obeso
Architect / Environmental adviser
eosis Consulting
LEEDuser Basic Member
20 thumbs up

Here is a situation: Rain water is captured and treated for reusing to flush and flow fixtures. A single cistern storages both rainwater and municipal water supply. From this cistern, water goes through treatment and a different cistern storages treated water. Since treated rain water is being reused to flow fixtures, would it be classified as potable? And if so, does it count to WEc2 compliance? My conflict is that, at the end, potable water would be used to flush fixture, however it is captured and treated rainwater. Any thoughts?

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Profile picture for user amy.rider
Amy Rider
Sustainability Manager
KEMA Services
LEEDuser Basic Member
110 thumbs up

Tue, 02/04/2014 - 20:39

Johanna, I think you would be meeting the intent of the credit by using rainwater for this purpose. As a result WEc2 shouldn't be a problem as long as you are also using high efficiency fixtures. However, I wonder how much of the water is going to flush fixtures and if there is a way to not treat all of it in the first place. Amy

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