Our project is in a 57-story building where the existing toilets are original to the building (1972) and are blow-out toilets at 3.5gpf.

For LEED Retail CI, to calculate the WEc1 water reduction you have to input the number of FTE's as well as customers.

Dear Tristan, If you only have one fixture, a faucet in staff lunchroom, in a CI project, and it does meet the goal of 20% better than code, i.e. 1.5 gpm. Then do you gain this credit?

As 1.6 is a standard low flow toilet, in order to further reduce water use is it better to specify a 1.28 gpf or a dual flush toilet? Thank you.

Within our CI project (Office - 5 stories), there are landlord core areas including all toilets / washing facilities (same toilet block repeated on each floor).

Currently, I'm working on a CI project in China. The project locates on 19th floor, which shared by two tenants.

Are the hand wash sinks included in the 20% reduction requirement?

Hello, I have assigned two fixture usage groups within a building; A daycare usage group (12 FTE) and General Office usage group (140 FTE).

Is there a lower limit to the lav flow rate below 0.5gpm that USGBC will accept? I saw something posted on the EPA's website awhile back, but am not finding it now.