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NC-2009 WEc2:Innovative Wastewater Technologies

water treatment outside LEED project boundary

Dear all, We have a small LEED project (an office space with landscape) which located inside non-LEED construction project (factory), which will be conducted simultaneously. My question is, if the wastewater of the office buiding will be discharged out of the LEED project boundary into a WWTP on the factory site, treated and then streamed back to be infiltrated inside the LEED project, would this effort can met credit requirements for Option 2?

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Fri, 05/31/2013 - 08:37

Hello again, I just wanted to update the above case. So, the owner have decided to install Sewage Treatment Plant to treat the wastewater from the office on-site , so there will be no issues with MPR3. However, they have proposed an STP design that it looks very good for treating the wastewater, but have no idea of the treated wastewater quality. The requirement does says that we must treat the wastewater to tertiary standard. Does this credit requires us to submit documentation on the quality of the treated wastewater? (This would mean we have to test the proposed design to know the quality result). Or is it possible if, just by providing the proposed STP design/drawing the reviewer can tell whether it can comply with the requirements?
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Tristan Roberts
Representative
Vermont House of Representatives
LEEDuser Expert
7780 thumbs up

Sun, 11/03/2013 - 18:46

Yasir, the engineer should be able to state what quality the water is being treated to—this should not be left to the LEED reviewer to determine. It seems unusual the a system is being engineered but the designer has no idea of the resulting water quality. Shouldn't this be a design requirement for their work?

Thu, 11/14/2013 - 13:45

Tristan, sorry for my previous post that is very disturbing. Actually, this case has been buried months ago. We found out that the STP system design was not made by the professional (hence, the no information of the resulting water quality), so we've decided not to pursue that option and select the Option 1 requirements using captured rainwater and treated wastewater. By the way, buildings in our country, in general, usually get clean water from PDAM (the municipal water system), and this clean water have a quality standard that is not equal (below) to EPA's drinking water quality standard (we can't drink water straight from the tap like you. For drinking water, our people usually have to buy bottled drinking water or sometimes must boil PDAM's clean water first before they can drink the water). In some cases, people still complain about the clean water they got (e.g. iron odor, etc.). From your perspective, do you think our so-called clean water can be categorized into nonpotable water by the LEED reviewers?

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