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

Kitchen Faucets

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Angel Vega
Project Manager
LEEDuser Basic Member
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The building I am trying to obtain the certification for, is a museum. It has two rooms with faucets for the cleaning staff. Are these faucets into the objetive of reduction? Additionally, do the faucets of the kitchens (we have five different kitchens and 3 of them are not commercial because are aimed to private activities promoted by the property), pre-rinse and sink faucets a baseline of 1.6 gpm? Anyway, for the kitchens, the facets are not in the objetive of efficiency and we just have to check the objetive of 1.6 gpm, am I in a good way? Thanks in advance

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Tue, 12/20/2016 - 19:09

Hi, Angel, Fixtures for cleaning staff (i.e., housekeeping or janitor sinks) and commercial kitchens are not applicable to WEp1/c3 and should not be included in the calculations. The kitchen sink faucets that should be included are those typically found in staff break rooms, conference rooms, etc. Suerte! Gerren
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Tue, 12/20/2016 - 19:31

Gerren and Angel - I just wanted to note that pre-rinse spray valves from commercial kitchens are required to be included for projects registered after 11/1/2011.
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Debra a. Lombard
Construction Administrator/ LEED AP
Bywater Woodworks, Inc.
LEEDuser Basic Member
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Mon, 06/12/2017 - 21:01

Please confirm if LEED NC v2009 office projects that have a break room/ kitchen sink type faucet would need to limit water usage for such faucet to 2.2 gpm (same as for residential kitchen faucet.) I see references to 1.6 gpm and not sure what that's for. THANKS!
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Erin Holdenried
Sustainable Design Director
Bell Architects
LEEDuser Premium Member
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Mon, 06/12/2017 - 21:07

Hi Angel - Within the commercial kitchen, if there are sinks used for hand washing only, these must be including in the water efficiency calculations. And, the pre-rinse spray valves must have a max flow rate of 1.6 gpm.
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Debra a. Lombard
Construction Administrator/ LEED AP
Bywater Woodworks, Inc.
LEEDuser Basic Member
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Mon, 06/12/2017 - 21:27

I'm still not sure what gpm the break room faucet should use for WEc3 2.2 gpm? I understand you're saying it would not apply to WEp1 however. There is no pre-rinse spray valve as it's an office kitchen not a cafe or comemrcial type kitchen. Thanks!
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Erin Holdenried
Sustainable Design Director
Bell Architects
LEEDuser Premium Member
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Mon, 06/12/2017 - 21:31

Yes, break room faucets should use 2.2 gpm for the baseline.
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Debra a. Lombard
Construction Administrator/ LEED AP
Bywater Woodworks, Inc.
LEEDuser Basic Member
42 thumbs up

Mon, 06/12/2017 - 21:34

Many Thanks Erin! I used to work for The RETEC Group in New Haven bought by AECOM :") Debra
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Lyle Axelarris
Building Enclosure Consultant
BPL Enclosure
LEEDuser Basic Member
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Sat, 04/14/2018 - 21:41

In a commercial kitchen, should the hand wash sinks be considered a "kitchen sink" or a "lavoratory"?

Sun, 04/15/2018 - 15:02

Any fixtures used for washing hands should be considered lavatories.  
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Lyle Axelarris
Building Enclosure Consultant
BPL Enclosure
LEEDuser Basic Member
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Thu, 04/19/2018 - 19:55

Has this been confirmed by LEED Reviewers or is this your take on it?  I just want to be really clear about where the line is between "kitchen sink" and "lavoratory" in a commercial kitchen.

Thu, 04/19/2018 - 20:55

Yes.  Per LEED Interpretation 1866: "Commercial sinks are considered process loads and are not included in the water use calculations."  Typical kitchen sinks are those found in staff break rooms or kitchenettes.  Lavatories are only used for hand-washing.  If there is a sink provided in the kitchen that is only to be used for hand-washing, it should be included as a lavatory.  You can include a narrative to clarify the difference for the reviewer.  

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