Am I correct in assuming that even though our total impervious area on the site will increase, we can achieve this credit by implementing treatment strategies that capture 90% of the storm water ru

I would like to know what determines the site boundary for capturing the 90% anual rainfall total. Does the treatment area have to be the entire site boundary?

Hi, Question one. We are in a semi-arid watershed. In the calculations, we count on 0,75 inch rainfall during 24 hours? We are planning to clean the rainwater from the roof.

Our building is connected to a public rainwater channel which is placed out of the LEED boundary, the rainwater channel is connected to the sea.

If local requirements are not as stringent as LEED requirements, are we still required to meet LEED requirements beyond local standards?

Our project is harvesting and reusing rainwater for flushing. rainwater that falls on the roof is collected in a 10cubic meter sump.

The Design Team for an urban office bldg. proposes to collect water from roof and terraces as well as mech. condensate for reuse (in irrigation and cooling tower make-up water).

Can we eliminate site area to be dedicated for the computations for 1" of rainfall? i.e. existing site area is 5 acres witih a 1" volume of 14,000 cf.

For table SSC6.2-1, we dont know how to describe BMP neither its TSS removal efficiency, because the rain water from the parking is directed and collected to be sent to a vegetated site outside the