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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?

Can I include process water savings in order to earn an Exemplary Performance point?

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

Occupancy Proof

What is the documented proof required to be submitted to USGBC confirming on the Occupancy considered for our project. Will a letter from the client confirming on the FTE, while assumptions on the transients suffice, or do we need to provide furniture layouts showing the seating arrangements? Also, in cases where furniture layouts are unavailable how can this be addressed? Thankyou

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Charles Nepps
NH Green Consulting
LEEDuser Premium Member
80 thumbs up

Sun, 03/22/2015 - 09:40

Appendix 1 of the Reference guide says: "Projects that know the tenant occupancy must use the actual numbers, as long as the gross square foot per employee is not greater than that in the default occupancy count table. If code requirements required gross square foot per occupant is less than those in the table, this is also acceptable." So as long as your occupancy numbers meet these requirements, no other documentation should be needed. As far as transients, include a narrative explaining your assumptions, and you should be ok.

Mon, 03/30/2015 - 07:09

Thanks Charles

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