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FAQs about WEp1 :

Will the reviewers accept a spreadsheet as a plumbing fixture schedule in lieu of the plans from the Construction Documents?

In LEED review comments I've been referred to the Water Use Reduction Additional Guidance document. I didn't know this was a required reference document.

Should I include bar sinks? What about mop sinks or janitor sinks? Swimming pools? Safety showers? Bidets? Tub spouts?

We provided new showers in our project to comply with the alternative transportation credit. Should they be considered in WEp1 calculations?

Can you explain the 12-second duration for metering faucets?

Can I use a nonpotable water source to contribute to WEp1 compliance?

Our project does not have any eligible water fixtures in the project boundary. Can we comply with WEp1?

We are having trouble finding EPAct-compliant fixtures. Is that a problem?

Where can I find a clear meaning of "public" and "private" as relevant to lavatory faucets?

Our project is a factory with historically a 95% male workforce. The restroom design accounts for this. Can I argue that the male/female gender ratio is different than 50/50?

Are shower duration controls an acceptable water-saving strategy?

Can I include process water savings in order to earn an Exemplary Performance point?

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Forum discussion

NC-2009 WEp1:Water Use Reduction—20% Reduction

non potable water

Part of the water for the WCs will be with non-potable water. How do we fill that out in the online leed template?

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Simon Sue
SL+A INTERNATIONAL ASIA INC.
LEEDuser Premium Member
305 thumbs up

Thu, 08/23/2012 - 09:30

In this case, you will fill out the LEED online template normally with the actual quantities of water used, and then will submit a seperate calculation in the Alternative Compliance Path box to document the water use reduction from non-potable water used. You can find the instructions and example non-potable water calculation in the most current Water Use Reduction Additional Guidance document, pg. 5: http://www.usgbc.org/ShowFile.aspx?DocumentID=6493

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