Pervious surface means an area that releases as runoff a small portion of the precipitation that falls on it. Lawns, gardens, parks, forests or other similar vegetated areas are examples of surfaces that typically are pervious.
Impervious area means any surface that does not allow stormwater to infiltrate into the ground.
Impervious surface means a surface that has been covered with a layer of material so that it is highly resistant to infiltration by water.
Permeable pavement means paving material that absorbs water or allows water to infiltrate through the paving material. Permeable pavement materials include porous concrete, permeable interlocking concrete pavers, concrete grid pavers, porous asphalt, and any other material with similar characteristics. Compacted gravel shall not be considered permeable pavement.
Regulated impervious surface means any of the following, alone or in combination: