This fall, the U.S. Environmental Protection Agency will release the National Stormwater Calculator. It is a tool designed to help city planners, developers, and property owners assess the runoff-reduction benefits of green infrastructure on specific sites.
Taking into account local soil conditions, land cover, and historical rainfall records, the calculator will determine the annual amount and frequency of stormwater runoff from locations anywhere in the U.S. The tool can examine how stormwater runoff changes under different development and green infrastructure scenarios.
We’re actually expecting to have a public release of the tool this June 2013.
Jason, Thanks for the update. Looks very useful and I cannot wait to use it. I hope it’s released sooner than later. A June 2013 release will be perfect.