Semi-impervious definition
Semi-impervious means land surfaces that partially restrict the penetration of water; such as porous concrete and asphalt pavements, gravel, limerock, and certain compacted soils.
Semi-impervious means land surfaces which partially restrict the penetration of water; included as examples are porous pavements, limerock, and other compacted materials.
Semi-impervious means land surfaces which partially restrict the penetration of water; included as examples are porous concrete and asphalt pavements, limerock, and certain compacted soils.