CS 2009 WEc2: Innovative Wastewater Technologies

  • Credit language straight from USGBC

    Need to check up on the exact LEED credit language from the LEED Rating System on the fly? LEEDuser includes the verbatim language. Members get:

    • Easy access to the official LEED credit language with just a couple of clicks.
    • On the jobsite without your bulky LEED Reference Guide? Check up on the credit language details here.
    • Credit language content is used by permission of the U.S. Green Building Council.

8 Comments

0
0
Juan Robles Senior Architect, AIA, LEED AP BD+C RoblesArq Architecture and Planning
Jul 14 2011
Member
40 Thumbs Up

Rainwater for irrigation

We are collecting rainwater and using it for maintenance in the common areas. At the same time, we are achieving a 62% potable waterPotable water meets or exceeds EPA's drinking water quality standards and is approved for human consumption by the state or local authorities having jurisdiction; it may be supplied from wells or municipal water systems. use reduction installing low flush fixtures. Does the rainwater collection count towards potable water use reduction in WEc2 ?

1
1
0
Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Nov 21 2011 Moderator

Juan, probably not. This credit mainly looks at water use from toilets and urinals.

Do you have a way to measure how much rainwater you are replacing, and does it go down the drain?

Log In to Reply
0
0
David Dominguez Architect, LEED-AP
Dec 21 2010
Member
633 Thumbs Up

Using treated water for cooling tower

We have a project that will treat all waste water and use it for the cooling towers. Will this use be compliant with the credits requirements regarding the compliance path 2?

The waste water will be treated to tertiary standards.

We will also treat waste water for some future buildings that will be adjacent to the project.

1
5
0
Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Dec 28 2010 Moderator

Yes, David—that would be an appropriate use for the treated wastewater.

2
5
0
David Dominguez Architect, LEED-AP Dec 28 2010 Member 633 Thumbs Up

Thanks Tristan.

3
5
0
David Dominguez Architect, LEED-AP Apr 25 2011 Member 633 Thumbs Up

Tristan, what if the cooling towers' water consumption is a lot below the treated water to a tertiary standard.

We could use the remaining for landscape but ours will be so small that there still will be some treated water without any use.

The project will not use treated water for toilets nor urinals because the project is so high that having double pipping will not be cost efective and the local engineer has experience lots of trouble with toilets and urinals turning yellow with treated water so the client does not want to use it for such uses.

Will pouring the remaining treated water to the sewage comply with the requirements given that cooling towers' water consumption and landscape has been satisfied?

4
5
0
Tristan Roberts Editorial Director – LEEDuser, BuildingGreen, Inc. Apr 25 2011 Moderator

David, if you pour any treated water down the drain, you can't get credit for that water under WEc2. According to the requirements, treated water must be reused or infiltrated on site.

Does that make sense?

5
5
0
David Dominguez Architect, LEED-AP Apr 25 2011 Member 633 Thumbs Up

It does, thank you Tristan.

Log In to Reply

Copyright 2012 – BuildingGreen, Inc.