Bioretention area definition

Bioretention area means avegetated surface depression, often referred to as a “rain garden,” with amended soils used to capture, slow, infiltrate, and treat runoff from impervious surfaces, including rooftops, roads, parking lots and driveways. The goal of this practice is to infiltrate stormwater runoff. Properly designed and installed bioretention area provide volume control, and groundwater recharge. This practice should only be installed on slopes less than 5%.
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Examples of Bioretention area in a sentence

  • Bioretention area is the use of plants and soils for removal of pollutants from stormwater runoff.

  • Connection and sufficient head to storm drain or approved discharge point (except in “A” or “B” soils). No filter fabric. Underdrain has a clean-out port consisting of a vertical, rigid, non-perforated PVC pipe, with a minimum diameter of 4 inches and a watertight cap. Location and footprint of facility are shown on site plan, landscaping plan, and grading plan. Bioretention area is designed as a basin (level edges) or a series of basins, and grading plan is consistent with these elevations.

  • Place a geotextile between the boundary of the gravel and the planting mix to prohibit the planting mix from filtering down to the perforated drain pipe.Several non-perforated PVC pipes should vertically connect to the under drain pipe and extend to the surface of the planting mix to provide access to clean out the perforated drainage pipe.Overflow SystemDesign an overflow system to pass runoff volumes greater than the water quality volume away from the Bioretention area.

  • Anexpense that is not covered by any Plan covering You is not an Allowable expense.

  • Add up the time to drain the ponded water with the time that it takes to drain the planting mix to calculate the total Bioretention area draw down time.Under Drain SystemMany of the native soils found in South Carolina do not allow for adequate infiltration.

  • Bioretention area A depressed, landscaped area that is designed to collect run-off allowing infiltration into the soil and an underdrain, thereby promoting pollutant removal.

  • If the stored water is applied to a lawn, garden or other Bioretention area then a nitrogen export reduction percentage equal to 30% may be assumed.

  • Maintenance responsibility of the Bioretention area should be vested with a responsible authority by means of a legally binding and enforceable maintenance agreement that is executed as a condition of plan approval.

  • Figure 6.1.1 Bioretention area in center of apartment building courtyard, Portland, Oregon.Photo by Curtis Hinman 66 • LID Technical Guidance Manual for Puget Sound Figure 6.1.2 Cross-section of a basic bioretention cell with no under-drain.

  • Bioretention area with low-maintenance plantings and hardscape (Photo credit: M.

Related to Bioretention area

  • Production Area means that part of the animal feeding operation that includes the animal confinement area, the manure storage area, the raw materials storage area, and the waste containment areas. The animal confinement area includes, but is not limited to, open lots, housed lots, feedlots, confinement houses, stall barns, free stall barns, milkrooms, milking centers, egg washing or egg processing areas, areas used for the storage and disposal/treatment of mortalities, cowyards, barnyards, medication pens, walkers, animal walkways, and stables. The manure storage area includes, but is not limited to, lagoons, runoff ponds, storage sheds, stockpiles, under-house or pit storages, liquid impoundments, static piles, and composting piles. The raw materials storage area includes, but is not limited to, feed silos, and silage bunkers. The waste containment area includes, but is not limited to, settling basins and areas within berms and diversions which separate uncontaminated stormwater.

  • Very high radiation area means an area, accessible to individuals, in which radiation levels from radiation sources external to the body could result in an individual receiving an absorbed dose in excess of 5 Gy (500 rad) in one hour at one meter from a source of radiation or one meter from any surface that the radiation penetrates.

  • exploration area means that part of the Area allocated to the Contractor for exploration, described in schedule 1 hereto, as the same may be reduced from time to time in accordance with this contract and the Regulations;

  • High radiation area means an area, accessible to individuals, in which radiation levels from radiation sources external to the body could result in an individual receiving a dose equivalent in excess of one mSv (0.1 rem) in one hour at 30 centimeters from any source of radiation or 30 centimeters from any surface that the radiation penetrates.

  • Schengen area means the area without internal borders comprising the territories of the Member States as defined in point (a) applying the Schengen acquis in full.

  • Radiation area means any area, accessible to individuals, in which radiation levels could result in an individual receiving a dose equivalent in excess of 0.05 mSv (0.005 rem) in 1 hour at 30 centimeters from the source of radiation or from any surface that the radiation penetrates.

  • Convention Area means the exclusive economic zone of a State Party, established in accordance with international law or, if a State Party has not established such a zone, an area beyond and adjacent to the territorial sea of that State determined by that State in accordance with international law and extending not more than 200 nautical miles from the baselines from which the breadth of its territorial sea is measured.

  • the LA area means the area in respect of which is the local authority.

  • Living area means the interior habitable area of a dwelling unit, including basements and attics, but does not include a garage or any accessory structure.

  • Business Area means an adjacent area that is zoned by a state, county, township, or municipal zoning authority for industrial or commercial purposes, customarily referred to as "b" or business, "c" or commercial, "i" or industrial, "m" or manufacturing, and "s" or service, and all other similar classifications and that is within a city, village, or charter township or is within 1 mile of the corporate limits of a city, village, or charter township or is beyond 1 mile of the corporate limits of a city, village, or charter township and contains 1 or more permanent structures devoted to the industrial or commercial purposes described in this subdivision and that extends along the highway a distance of 800 feet beyond each edge of the activity. Each side of the highway is considered separately in applying this definition except that where it is not topographically feasible for a sign or sign structure to be erected or maintained on the same side of the highway as the permanent structure devoted to industrial or commercial purposes, a business area may be established on the opposite side of a primary highway in an area zoned commercial or industrial or in an unzoned area with the approval of the state highway commission. A permanent structure devoted to industrial or commercial purposes does not result in the establishment of a business area on both sides of the highway. All measurements shall be from the outer edge of the regularly used building, parking lot, or storage or processing area of the commercial or industrial activity and not from the property lines of the activities and shall be along or parallel to the edge or pavement of the highway. Commercial or industrial purposes are those activities generally restricted to commercial or industrial zones in jurisdictions that have zoning. In addition, the following activities are not commercial or industrial:

  • movement area means that part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, consisting of the manoeuvring area and the apron(s);

  • School premises means either of the following:

  • ILUA Area means the geographical area in relation to which the Framework ILUA applies, as specified in Schedule 2 of the Framework ILUA;

  • Play area means an area of frequent soil contact by children of less than six years of age as indicated by, but not limited to, factors including the following: the presence of play equipment (sandboxes, swing sets, and sliding boards), toys, or other children’s possessions, observations of play patterns, or information provided by parents, residents, caregivers, or property owners.

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Plant Material means the leaves, stems, buds, and flowers of the marijuana plant, and does not include seedlings, seeds, clones, stalks, or roots of the plant or the weight of any non-marijuana ingredients combined with marijuana.

  • Plan Area means the geographic area analyzed in the HCP/NCCP, located in the eastern portion of Contra Costa County, as depicted in Figure 1-1 of the HCP/NCCP. The Plan Area is further described in detail in Chapter 1.2.1 of the HCP/NCCP. The Plan Area is also referred to as the “Inventory Area” in the HCP/NCCP.

  • Metropolitan Area means that area within a radius of fifty kilometres from the Perth Railway Station.

  • Storage area means any location, facility, or vehicle which is used to store, to transport, or to secure a radiographic exposure device, a storage container, or a sealed source when it is not in use and which is locked or has a physical barrier to prevent accidental exposure, tampering with, or unauthorized removal of the device, container, or source.

  • Refinery means a facility used to produce motor fuel from crude oil, unfinished oils, natural gas liquids, or other hydrocarbons and from which motor fuel may be removed by pipeline, by marine vessel, or at a rack.

  • Carpet Area means the net usable floor, area of an Flat/Apartment, excluding the area covered by the external walls, areas under services shafts, excluding balcony or verandah area and exclusive open terrace, but includes the area covered by the internal partition walls of the flat/apartment;

  • The Works/Project means the works to be executed or done under this contract.

  • Animal feeding operation (“AFO”) means a lot or facility (other than an aquatic animal production facility) where animals have been, are, or will be stabled or confined and fed or maintained for a total of 45 days or more in any 12-month period, and crops, vegetation, forage growth, or post-harvest residues are not sustained in the normal growing season over any portion of the lot or facility [40 CFR § 122.23(b)(1)].

  • Premises means the location where the Services are to be supplied, as set out in the Specification.

  • Geographical Area means North America, Europe or Asia Pacific, as the case may be.

  • conservation area means any improved area within the boundaries of a redevelopment project area located within the territorial limits of the municipality in which 50% or more of the structures in the area have an age of 35 years or more. Such an area is not yet a blighted area but because of a combination of 3 or more of the following factors may be considered as a “conservation area”: