Hi All-

I am working on a project that will integrate a moisture sensor component into the overall irrigation system in order to hit the 30% prerequisite and hopefully 50% credit threshold for irrigation water reduction.  I have downloaded and reviewed both the LEED Outdoor Water Use calculator and the EPA Watersense irrigation calculator referenced by LEED.  Neither of these excel files acknowledge the use of a rain sensor (or similar) for a water reduction strategy.  However, the LEED reference guide (BD+C, NC) says “Watersense irrigation controller specifications outline the requirements for weather based irrigation controller systems.  These systems earn projects a standard 15% reduction in landscape water requirement for WE credit Outdoor Water Use reduction”. 

I do not see this reduction available on the LEED form or the calculators.  How is water savings recognized for the credit with an integrated Watersense weather system?

Thank you!