#LID Defaults from the EPA SWC
#LID Defaults from the EPA SWC The following defaults are from the EPA Stormwater Calculator https://www.epa.gov/water-research/national-stormwater-calculator A few of these parameters such as the capture ratio are not parameters in InfoSWMM Sustain There are some additional points to keep in mind when applying LID controls to a site: 1. The area devoted to Disconnection , Rain Gardens , and Infiltration Basins is assumed to come from the site’s collective amount of pervious land cover while the area occupied by Green Roofs , Street Planters and Porous Pavement comes from the site’s store of impervious area. 2. Underdrains (slotted pipes placed in the gravel beds of Street Planter and Porous Pavement areas to prevent the unit from flooding) are not provided for. However since underdrains are typically oversized and pla...