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FAQs about WEp1 :

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?

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

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

CI without changing any plumbing fixtures.

Profile picture for user rl
Raymond Loo
Senior Manager, Corporate Services
MEA & Associates Limited (Hong Kong)
LEEDuser Basic Member
62 thumbs up

Cristina, did you ever receive any advice on your clarification documentation? We are at the early stages of reviewing a CI (about 70 percent of the entire floor space) where the tenant does not intend to change any plumbing fixtures. From what I understand of Breeze Glazer's reply from USGBC, we would be exempt from WEp1 and we would be excluded from pursuing WEc1. Is this correct? And even if the existing plumbing is already efficient, since it is only about one year old, we still wouldn't be eligible for WEc1 based on the response that you received from GBCI?

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