I am working on a LEED CI project. It’s an office building with kitchen sinks in pantry areas throughout the building, which is available for all the occupants. There are also kitchen sinks in the cafeteria which is only available for the kitchen staff. I know I need to include the kitchen sinks in pantry areas and use the building’s FTE to calculate its usage. But do I need to include kitchen sinks in the cafeteria? Under WEp2 requirement, kitchen sink is only listed under Residential Fixture not under Commercial Fixtures. Kitchen sinks in the cafeteria is for commercial use (food service application). And the LEED CI guideline said kitchen sinks with low –flow rates are not appropriate because volume of water of predetermined does not save water and will likely cause frustration. Should I exclude kitchen sink in the cafeteria in WEp2 and WEc1 calculation?
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Carlie Bullock-Jones
PrincipalEcoworks Studio
LEEDuser Expert
220 thumbs up
January 31, 2013 - 10:58 am
Hi Sharon,
Kitchen faucets to be used for break room sinks must be included, but commercial kitchen sinks and bar sinks including pot sinks, prep sinks, wash down, and cleaning sinks are considered process water and are not included (November 1, 2011 Addenda).
However, pre-rise spay valves must be considered. If your project is registered after November 1, 2011 – the pre-rinse spray valve flow rate must be 1.6 gpm or less in order to comply with the prerequisite. If your project has a pre-rinse spray valve that has a higher flow rate than 1.6 gpm, then the project is not in compliance and the pre-rinse spray valve would need to be revised in order to be eligible for LEED certification.
Hope helpful!
Jaclyn Whitaker
Director, Project ManagerDelos Living
February 13, 2013 - 1:31 pm
Hi Sharon and Carlie.
Do hand washing sinks within commercial kitchen (cafeterias) need to be included in the WE calculation?
Thanks,
Jaclyn
Michelle Rosenberger
PartnerArchEcology
519 thumbs up
March 12, 2013 - 7:10 pm
We'd like to know the answer to this one also. Per Addendum, all hand washing sinks regardless of location need to be included. However, there are some arguments in the NC pages for not including them based on usage differences.
Carlie Bullock-Jones
PrincipalEcoworks Studio
LEEDuser Expert
220 thumbs up
March 22, 2013 - 9:40 am
Hand washing sinks located in commercial kitchen areas that do not pass through a grease interceptor should be included in the water use calculations under the kitchen sink category (November 1, 2011 Addenda)
Public and private lavatory faucets encompass all sinks used primarily for hand-washing regardless of location (February 2, 2011 Addenda)