my project is registered for LEED CI 2009 , we are using gray water for irrigation , which means 100 % reduction of potable water , does this qualify the project for the other 2 points of path 8 ?? ,, and will i need to make calculations ??
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Michael Smithing
Director - Green Building AdvisoryColliers International Ltd.
304 thumbs up
August 5, 2012 - 11:25 pm
Yes and yes. I asked a similar question recently (which I don't see now). You can only avoid the calculations if you don't use water. The LEED On-line form says you need to show a 50% reduction in water use for the second 2 points but this is not a CI requirement.
soha yamani
Senior Sustainability EngineerMetec Consultants
15 thumbs up
August 6, 2012 - 8:49 am
EXACTLY ,, so what is the CI requirements for achieving the 4 points ??
Susann Geithner
PrincipalEmerald Built Environments
1297 thumbs up
August 9, 2012 - 11:37 am
Soha, you will still have to fill out the calculation to show that gray water available for irrigation is enough to meet the irrigation demand. Usually you will perform a calculation showing the supply of gray water, the tank and how much it is filled and the draw for irrigation. We usually show this for the entire year, per day.