Impervious surfaces means those areas which prevent or impede the infiltration of stormwater into the soil as it entered in natural conditions prior to development. Common impervious areas include, but are not limited to, rooftops, sidewalks, walkways, patio areas, driveways, parking lots, storage areas, compacted gravel and soil surfaces, awnings and other fabric or plastic coverings.
Impervious surfaces means any hard surface that prevents or hinders the absorption of water into the soil, or that causes reduced quality of runoff water, or causes water to runoff in greater quantities or at greater flow rates than the natural surface.
Impervious surfaces means hard surfaced areas which prevent or retard the entry of water into the soil mantle and/or cause water to run off the surface in greater quantities or at an increased rate of flow than under natural conditions. Common impervious surfaces include, but are not limited to rooftops, concrete or asphalt roads, sidewalks and paving, walkways, patio areas, driveways, parking lots or storage areas and gravel, hard-packed dirt, oiled or other surfaces which similarly impede the natural infiltration of surface water or runoff patterns existent prior to development.
Examples of Impervious surfaces in a sentence
Impervious surfaces shall be kept out of the protective area entirely or to the maximum extent practicable.
Impervious surfaces shall be kept out of the protective area to the maximum extent practicable.
Impervious surfaces are significantly less of a problem if they are not directly connected to an impervious conveyance system (such as storm sewer).
Impervious surfaces include concrete unless unsealed cracks or holes are present.
Impervious surfaces shall not exceed 30 percent of the AEC area of the lot.
More Definitions of Impervious surfaces
Impervious surfaces means those areas of a lot or development covered by roofs, terraces, outside balconies, canopies, or paved surfaces such as driveways, sidewalks, courts, streets, or parking areas. A surface paved with an accepted asphalt or other acceptable material which, after compaction, is not thicker than one and one-half inches shall not be considered impervious, provided such surface will pass an amount of water equivalent to one- half inch of rainfall per hour and is underlaid by permeable soil;
Impervious surfaces means those areas that prevent or impede the infiltration of stormwater into the soil as it entered in natural conditions prior to development. Common impervious areas include, but are not limited to, rooftops, sidewalks, walkways, patio areas, driveways, parking lots,
Impervious surfaces means a constructed surface such as sidewalks, roads, parking lots or driveways covered by water impenetrable materials such as asphalt, concrete, brick, pavers, stone and/or highly compacted soils.
Impervious surfaces means areas that do not allow significant amounts of water to penetrate.
Impervious surfaces means a hard surface area which prevents or retards the entry of water into the soil mantle and/or causes water to run off the surface in greater than natural quantities or at an increased rate. Impervious surfaces include, but are not limited to, rooftops, walkways, patios, driveways, parking lots, concrete or asphalt paving, gravel surfaces with compacted subgrade, packed earthen materials and oiled macadam or other surfaces which similarly impede the infiltration of stormwater. Open, uncovered stormwater management facilities shall not be considered impervious surfaces.
Impervious surfaces means a continuous surface of concrete, bitumen or paving with slabs, bricks, ‘gobi’ or similar blocks, or hardfill that effectively puts a physical barrier on the surface of any part of a site but excludes shade houses, glass or tunnel houses not having solid floors.Related definitionsSite Indigenous vegetation means a plant community in which locally indigenous species are important in terms of coverage, structure and/or species diversity. Industrial activityRelated definitions means the use of land and/or buildings for manufacturing, fabricating, processing, repairing, assembly, packaging, wholesaling or storage of products. It excludes high technology industrial activity, mining exploration, mineral extraction activity and quarrying and noxious or offensive activity.Related definitionsBuildingHigh technology industrial activityNoxious or offensive activity Interface DRAFTmeans the relationship between a change in activities or change in environment. For example, street interface is the relationship between public and private space on a site’s frontage.Related definitionsFrontage ISO 140 part 5 means ISO 1405:1998 Acoustics—Measurement of sound insulation in buildings and of building elements—Part 5: Field measurements for airborne sound insulation of facade elements and facades. ISO 717 part 1Related definitions means ISO 7171:2013 Acoustics—Rating of sound insulation in buildings and of building elements—Part 1: Airborne sound insulation. J KKey activity centresRelated definitions means the following key existing and proposed commercial centres identified as focal points for employment, community activities and the transport network; and which are suitable forRelated definitionsCommercial centres
Impervious surfaces means hard surface areas which prevent or retard the entry of water into the soil mantle, and/or which cause water to run off in greater quantities or at an increased rate of flow from that present prior to development. Impervious surfaces include, but are not limited to, roof tops, walkways, patios, decks (covered and open are both considered impervious), pools, driveways, parking lots or storage areas, concrete or asphalt paving, gravel roads (not gravel driveways or trails), packed earthen materials, rockeries and oiled macadam or other surfaces which impede the natural infiltration of surface and stormwater runoff. Open retention and detention facilities shall not be considered as impervious surfaces.