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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

WE Fixture Group simple question

Rick Alfandre

Principal

Alfandre Architecture

LEEDuser Basic Member

13 thumbs up

June 21, 2013

I apologize for the simplicity of my question, but I want to make sure I am providing accurate information. If I have a commercial office building with 2 identical unisex bathrooms with no urinals, accessible to all tenants, I only have 1 fixture family for water closet, 1 fixture family for public lavatory faucet? I want to make sure that I don't need to put each toilet in the list. I know it doesn't change the percentage, but I don't want to incorrectly state the annual water consumption.

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Erin Holdenried

Sustainability Architect

LEEDuser Basic Member

88 thumbs up

Fri, 06/21/2013 - 15:18

Hi Rick- Yes, you should group together fixtures that have the same usage rate and water consumption rate. Your percentage water savings and annual water consumption should be the same if they were separated or combined. Make sure you've created and assigned the Fixture Group(s) correctly.

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