Hi All. This is just a suggestion. To achieving this credit the pre-development condition is no more the "existing site" we were talking about in v2009, but is now(LEED v4) the "natural land cove

It is our understanding that Section 438 is used only to define the 95th percentile and that there is no requirement to follow Section 438 in full.

Dear all, We are currently wondering what is th ruling in the case of an underground parking being below a green space area, which we would tend to account for in the pervious area contribution fo

Our LEED project site falls within a larger medical campus which has a campus-wide stormwater management plan which meets the credit requirements.

Hi! I'm working on a green roof over a building in IP and want to understand what system (extensive, etc)would be better. I was able to calculate the 95th percentile of my site (46mm) and the Sma

We are planning to follow option 2 (Natural Land Cover Conditions). The area consists mainly in clay with very low infiltration capacity.

Dear all, we're planning to install tank for collecting 180% of stormwater from 95 percentile rainfall event.

I have subscribed to access for the online v4 Reference Guide, and I noticed a couple of mistakes in the example for this credit.

Hello, I wonder how should I understand Opt.2 BD+C Rain water Mgmt credit. "Manage on site the annual increase in runoff volume from the natural land cover condition to the post-developed conditio

Hi, Our project site contains a portion of natural land cover conditions site and previously developed site.Shall we use option 1, or shall we use combined option 1 and 2, such as using option 1