Pervious pavement is designed to allow percolation or infiltration of storm water through the surface into the soil below where the water is naturally filtered and pollutants are removed. In contrast normal pavement is an impervious surface that sheds rainfall and associated surface pollutants forcing the water to run off paved surfaces directly into nearby storm drains and then into streams and lakes. .
Permeable Paver Benefits to Homeowners:
Reduce water demand by placing pavers over grassed areas
Aid landscaping by reducing erosion that occurs when grass is dry or dead
Eliminate standing water on the surface where mosquitos can breed
In short, pervious pavement is a self-draining system. They are commonly used for patios, walkways, driveways and landscaping.