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

WEp1 Credit Resources - Water Use Reduction Calculator

I have just come across the Water Use Reduction Calculator tool in the credit tools for WEp1. Do most people use this to demonstrate compliance? It looks to make the WEp1 process a lot more straight forward... The instructions say to complete the Water Use Reduction Calculator, upload to LEED Online, and complete any related summary fields in the LEED credit form with results from the calculator. I can't see which are "summary fields" though- can I avoid completing the WEp1 credit form in its entirety if I upload the Water Use Reduction Calculator? Many thanks, Susie

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Charles Nepps
NH Green Consulting
LEEDuser Premium Member
80 thumbs up

Tue, 09/29/2015 - 18:46

No the form still needs to be completed, the calculator is supporting documentation. I think once you complete the calculator, you'll find the form fairly simple to complete; but do let me know if you need a help.

Tue, 11/03/2015 - 16:23

I've realised that the Water Use Reduction Calculator tool is password protected. This seems a bit odd since it is meant to be a useful resource. How do I go about unlocking it for use? Additionally, I was wondering if anyone has an example of a completed credit form they would be willing to share with me for a project with more than one Fixture Groups? We're new to the LEED process and would like the peace of mind of checking our approach against that of another project before submitting to USGBC! Many thanks, Susie

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