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FAQs about 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?

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?

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Forum discussion

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

Gender Ratio Impact on WE p1 and c3 Water Calculations

We understand from experimenting with the forms that the results are influenced by the male to female ratio. Are all projects required to use a 50:50 ratio? If it is possible to alter the ratio to reflect the actual gender ratio in the project facility, what documentation is required to justify a ratio other than 50:50? Thank you!

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Thu, 01/12/2012 - 21:00

Your documentation needs to indicate the gender ratio will last for a long lenght of time - for example it cannot be something similar to 'this type of building has 75% female user ratio due the functions held inside" because the functions may change and there for the gender ratio may change.

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