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FAQs about WEp1 :

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?

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?

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Forum discussion

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

Template is rounding down to 0 daily uses!

I have a fixture usage group with 4 FTEs and there's a shower in it. Shower daily uses is 0.1, so the template calculates my total daly uses as 0.1 x 4 = 0.4 and it rounds down to 0. Therefore, my annual water consumption for both baseline and design case results as 0. Anyone with a similar problem? How can I solve this? Thanks

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Profile picture for user nadiaayala
Nadia Ayala
Architect / LEED AP BD+C
KILTIK Consultoría
LEEDuser Basic Member
36 thumbs up

Mon, 07/23/2012 - 20:50

Hi Marcio, If you disagree with any of the default values (of total uses per day) given by the LEED form, you can fix it by just unchecking the "Default" box in the form table and entering the custom value. Nevertheless, you have to include a narrative detailing the non-default values that you've entered, which in your case are perfectly understandable.

Tue, 07/24/2012 - 12:00

Thanks Nadia. I tried to do what you suggested but even so the template won't accept a 0.4 value and it rounds down to 0 anyway. I think I will just uncheck the default and input 1 instead, it won't cause a drastic change in my consumption anyway. Do you think this would be a reasonable solution? Thanks,
Profile picture for user nadiaayala
Nadia Ayala
Architect / LEED AP BD+C
KILTIK Consultoría
LEEDuser Basic Member
36 thumbs up

Tue, 07/24/2012 - 13:50

Hi Marcio, I think using "1" would be a reasonable thing to do. Just remember to write the brief narrative explaining the non-default value you're using, and don't forget to mention it was due to malfunctioning or imprecision of the form, and maybe we've got a chance that they get the form fixed for future projects. Good luck!

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