Dear All
We are the construction materials manufacturers. We wish to determine the runoff coefficient for our porous concrete product.

Can anyone advise what is acceptable testing...

Hi everyone,
I got a question about the calculataion of Volume of captured run off;
In the formula,(V= P.A.R/12) P value is taken according to the location of project ; humid ,semi...

Going from LEED-EB 2.0 SS credit 5.1 to LEED 2009, O&M, what is the number for "Volume Captured"? Is it
a) "Stormwater management practices (structural detention facilities)" (gallons...

My project features raised green roof beds (6" deep soil) located directly downstream from a tin roof. There are no gutters and for the most part runoff from the roof runs directly into the roof...

page 95 of the LEED manual (description of case 1 - option 2) states that post development runoff rate and quantity must be below "critical values" for the relevant receiving waterways.

...

site is on the river. I assume this doesn't change anything, but civil engineer asked I check to see if LEED has exceptions for this. I guess the thought was that it might be strange to retain...

Dear all,
We have found a sample calculation to determine storm water rate and quantity for 1 yr-24 hr design storm and 2 yr-24 hr design storm from...

Michael DeVuono Regional Stormwater Leader Arcadis North America LEEDuser Expert 187 thumbs up June 16, 2014- 4:21 pm Stormwater runs off with a rate and volume. How this rate and volume is determined requires about 9 semester hours of hydrology courses, and is beyond the scope of this forum. I recommend you consult with a civil engineer to perform this work for your project. Log in or register to post comments sona prajapati LEEDuser Basic Member 1 thumbs up August 25, 2014- 2:43 am Dear Michael, We have found a sample calculation to determine storm water rate and quantity for 1 yr-24 hr design...

Hi everyone!

We are working on previously undeveloped land project, which apply for case 1 “site with existing imperviousness 50% or less”. With the new project, the imperviousness will...

your comment above states: Is it an acceptable strategy to capture the rainwater into tanks and discharge it into the public sewers after the rainstorm reducing the peak discharge?
This is...