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Duration in lavatory faucets – 15 or 30 seconds?

CS-2009 WEp1: Water Use Reduction
posted by Maria Porter on Sep 1, 2011, 6:32 am

On LEED Online and in the Reference Guide one use of a lavatory faucet is 15 seconds. In the Water Use Reduction Additional Guidance (updated July 14, 2011) page 3, the duration of a lavatory...

Last reply: Maria Porter, Jan 13, 2012, 4:19 am

Blowout Fixtures

CS-2009 WEp1: Water Use Reduction
posted by Luis Miguel Diazgranados on Aug 25, 2011, 3:39 pm

Hello Everyone:

The project we are working on is an office building applying for LEED CS. The project will have two "public" restrooms in each floor (men/women). These types of...

Last reply: Sonrisa Lucero, Jan 4, 2012, 2:35 pm

Alternative Compliance Path Documentation

CS-2009 WEp1: Water Use Reduction
posted by R Jones on Nov 11, 2011, 9:27 am

I wish to pursue an Alternative Compliance Path for taking account of collected rainwater being used for the toilet and urinal flushing under credit WCp1 and WE3. Should icomplete the template as...

Last reply: Susann Geithner, Nov 11, 2011, 1:01 pm

Pre-rinse spray valves

CS-2009 WEp1: Water Use Reduction
posted by Tapio Peltonen on Aug 4, 2011, 3:51 am

LEED-CS 2009 form WEp1 version 4.0 states the following:
"Note: The flow rate for all pre-rinse spray valves must be less than or equal to 1.6 gpm. If there are multiple fixtures with...

Last reply: Susann Geithner, Sep 1, 2011, 9:42 am

LEED NC & CS v3.0 Quarterly addenda

CS-2009 WEp1: Water Use Reduction
posted by Adriana Hansen on May 27, 2011, 2:11 pm

The latest version of LEED NC & CS v3.0 Addenda incorporates changes and improvements to LEED 2009 resources. However there are some considerations that were not clear. Find bellow some...

Last reply: Adriana Hansen, Jul 5, 2011, 6:57 pm

Interior Construction

CS-2009 WEp1: Water Use Reduction
posted by Joaquim Lima on Jun 20, 2011, 9:24 am

Good morning,
My building is a residential building and was certified as core & shell, credit MR - 4 (Recycled Content) there is a paragraph that says interior construction is not part...

Last reply: Tristan Roberts, Jun 20, 2011, 2:31 pm

Are the restrooms private or public in an Office Building?

CS-2009 WEp1: Water Use Reduction
posted by marisol cano on Jun 7, 2011, 8:17 pm

Hello. We are doing a C&S certification for an office building.
Ground floor is commercial basically (therefore the restrooms are public)
Floors 1 to 7 are offices for lease that...

Last reply: Susan Walter, Jun 8, 2011, 3:56 pm

No Fixtures Installed in Core & Shell Scope

CS-2009 WEp1: Water Use Reduction
posted by Lauren Ulmer on May 20, 2011, 11:09 am

From what I have read on this website, my understanding is that if we are not installing any plumbing fixtures as part of the Core & Shell work, then we must make the water reduction a...

Last reply: Curt Pascoe, May 27, 2011, 2:53 pm

Faucet Aerators use

CS-2009 WEp1: Water Use Reduction
posted by Alessio Zampaglione on May 16, 2011, 4:27 am

Can someone confirm me that the use of faucet aerators is an allowed way to achieve WEp1 WE c3 for Leed CS v3 ? It's impossible to find a faucet with a so low flow rate in italy. If someone...

Last reply: Tristan Roberts, May 24, 2011, 12:53 pm

LEED Addenda for Water Reduction Calculation

CS-2009 WEp1: Water Use Reduction
posted by Mike Liu on Nov 17, 2010, 3:32 am

According to the LEED Addenda, I can't include the non-potable water usage in the WE P1 and C3 calculation. But my project registed before this Addenda issued. Can I still include the non-potable...

Last reply: R Jones, May 24, 2011, 12:08 pm