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

See LEEDuser’s guidance on CI-2009 WEp1 »

WE Credit in Core and Shell and Commercial Interiors (Synergy)

November 21, 2014

Saju Varghese

SUSTAINABILITY COORDINATOR
JALRW Eng. Group Inc.

LEEDuser Basic Member

39 thumbs up

November 21, 2014

Can you take credit of the water fixtures under CS for a project and also under CI when the interior is built? or only in one rating system?

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Carlie Bullock-Jones

Principal
Ecoworks Studio

LEEDuser Expert

220 thumbs up

December 30, 2015 - 5:30 pm

Hi Catalina,

Note that the July 19, 2010 Addenda has clarified the scope of fixtures that are applicable to the calculations of WEp1 and WEc1.

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See LEEDuser’s guidance on CI-2009 WEp1 »

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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