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FAQs about WEp1 :

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?

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?

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Forum discussion

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

Laboratories

Jennifer Berthelot-Jelovic

Director of Sustainability

Shangri-La Construction

LEEDuser Basic Member

45 thumbs up

August 2, 2011

Is it safe to assume that faucets that are installed in labs are not included in the water fixture calculations since they are not listed in the reference guide? We of course have included all of the restroom fixtures. I just want to make sure that the faucets installed at lab tables do not need to be included.

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Dave Intner

Architect

LEEDuser Premium Member

5 thumbs up

Mon, 08/22/2011 - 19:57

I worked on a Medical Office Building, where there were exam room sinks. These were excluded from the WEp1 and WEc3 calculations as a process water use. We submitted and received a point for an ID credit, "Process Water Use Reduction," in which we separately accounted for water efficiency in the exam room sinks through use of low-flow faucet outlets and footpedal controls. I expect that this application would be considered similar to a Laboratory situation.

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