Development
Impervious areas are places where the ground is covered by a hard surface so that water "runs off" instead of sinking naturally into the ground. Impervious surfaces include roads, sidewalks, driveways, parking lots, rooftops, and many other hard surfaces.
When impervious surfaces are created through development, less rainwater soaks into the ground. If rainwater cannot soak into the ground, or infiltrate, it becomes runoff. As more and more natural spaces are converted into developed areas, more and more stormwater runoff is created. Without careful, comprehensive land planning, this increase in the volume of stormwater pollution can be a growing problem.
Related Information
Source: www.nccwep.org
