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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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CS-2009 WEp1:Water Use Reduction

Documentation for demonstrating the sanitary fixtures flow rate

Regarding the documentation to demonstrate the sanitary fixtures flow rate, can we submit a test report conducted on-site which can demonstrate the exact flow rate of the sanitary fixtures in our project building, instead of submitting the manufacturers’ data? Some of our sanitary fixtures do not have the product information sheets provided by the manufacturers.

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Profile picture for user tristanroberts
Tristan Roberts
Representative
Vermont House of Representatives
LEEDuser Expert
7780 thumbs up

Sun, 11/20/2011 - 02:18

Caroline, yes, that should be sufficient. That is a common approach in LEED-EBOM.
Profile picture for user nadiaayala
Nadia Ayala
Architect / LEED AP BD+C
KILTIK Consultoría
LEEDuser Basic Member
36 thumbs up

Mon, 02/20/2012 - 17:39

Caroline, how did you go with this? I just had a reply from a reviewer telling me that on-site measurements demonstrating actual flow rates do not comply with the prerequisite. (We uploaded some cut-sheets with values that are much higher than the ones reported by on-site measurement, but at the end of the day, the actual values are the ones that we had measured). Tristan, do you know about a certain format that would be approved by the reviewer? Do you think a measurement performed by the commissioning agent with its report would be sufficient? Thank you for your quick response.

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