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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?

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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

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

Car wash bay

Marni Punt

Associate

Aurecon

LEEDuser Basic Member

0 thumbs up

Project location :

March 18, 2015

Hi, I am working on an office building and the team is considering to include a car wash bay. Would I be able to classify this as process water and exclude it from the WEp1 calculation?

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Michelle Robinson Schwarting

LEEDuser Basic Member

98 thumbs up

Wed, 03/18/2015 - 15:32

Correct. Since car washes are not regulated by the Energy Policy Act of 1992, it is excluded from the WEp1/WEc3 Indoor Water Use Reduction calculations.

Marni Punt

Associate

Aurecon

LEEDuser Basic Member

0 thumbs up

Thu, 03/19/2015 - 07:04

Michelle, thank you for the quick response!

Geoffrey Katz

Landscape Architect, former Vice-Chair, Sustainable Sites TAG

LEEDuser Basic Member

5 thumbs up

Fri, 05/13/2016 - 01:34

Hello we are working on a transit facility that includes a bus wash bay. Based on the above response the water for the bus wash would also be process water. Could we include it in the V4 Indoor Water Use Reduction Credit? (NB Would not include in the Prerequisite). Thanks!

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