Difference between revisions of "Hover box definitions"
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| − | <span title="Bioretention is a terrestrial-based (up-land as opposed to wetland) water quality and water quantity control process. Bioretention employs a simplistic, site-integrated design that provides opportunity for runoff infiltration, filtration, storage, and water uptake by vegetation. Bioretention areas are suitable stormwater treatment practices for all land uses, as long as the contributing drainage area is appropriate for the size of the facility. Common bioretention opportunities include landscaping islands, cul-de-sacs, parking lot margins, commercial setbacks, open space, rooftop drainage and street-scapes (i.e., between the curb and sidewalk). Bioretention, when designed with an underdrain and liner, is also a good design option for treating Potential stormwater hotspots. Bioretention is extremely versatile because of its ability to be incorporated into landscaped areas. The versatility of the practice also allows for bioretention areas to be frequently employed as stormwater retrofits."> '''bioretention practice'''</span> | + | *<span title="a bioretention practice in which no underdrain is used. All water entering the bioinfiltration practice infiltrates or evapotranspires."> '''bioinfiltration'''</span> |
| + | *<span title="Bioretention is a terrestrial-based (up-land as opposed to wetland) water quality and water quantity control process. Bioretention employs a simplistic, site-integrated design that provides opportunity for runoff infiltration, filtration, storage, and water uptake by vegetation. Bioretention areas are suitable stormwater treatment practices for all land uses, as long as the contributing drainage area is appropriate for the size of the facility. Common bioretention opportunities include landscaping islands, cul-de-sacs, parking lot margins, commercial setbacks, open space, rooftop drainage and street-scapes (i.e., between the curb and sidewalk). Bioretention, when designed with an underdrain and liner, is also a good design option for treating Potential stormwater hotspots. Bioretention is extremely versatile because of its ability to be incorporated into landscaped areas. The versatility of the practice also allows for bioretention areas to be frequently employed as stormwater retrofits."> '''bioretention practice'''</span> | ||
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| + | ==C== | ||
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| + | ==D== | ||
| + | *<span title="Contributing area is defined as the total area, including pervious and impervious surfaces, contributing to a BMP. It is assumed that in most cases, with the exception of green roofs and many permeable pavement systems, impervious surfaces will constitute more than 50 percent of the contributing area to the BMP and that most of this impervious is directly connected."> '''Drainage Area'''</span> | ||
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| + | ==E== | ||
| + | *<span title="Engineered media is a mixture of sand, fines (silt, clay), and organic matter utilized in stormwater practices, most frequently in bioretention practices. The media is typically designed to have a rapid infiltration rate, attenuate pollutants, and allow for plant growth."> [https://stormwater.pca.state.mn.us/index.php?title=Design_criteria_for_bioretention#Materials_specifications_-_filter_media '''engineered media''']</span> | ||
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| + | ==F== | ||
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| + | ==G== | ||
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| + | ==H== | ||
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| + | ==I== | ||
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| + | ==J== | ||
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| + | ==K== | ||
| + | *<span title="Karst is a landscape formed by the dissolution of a layer or layers of soluble bedrock. The bedrock is usually carbonate rock such as limestone or dolomite but the dissolution has also been documented in weathering resistant rock, such as quartz. The dissolution of the rocks occurs due to the reaction of the rock with acidic water. Rainfall is already slightly acidic due to the absorption of carbon dioxide (CO2), and becomes more so as it passes through the subsurface and picks up even more CO2. Cracks and fissures form as the runoff passes through the subsurface and reacts with the rocks. These cracks and fissures grow, creating larger passages, caves, and may even form sinkholes as more and more acidic water infiltrates into the subsurface."> [https://stormwater.pca.state.mn.us/index.php?title=Karst '''Karst''']</span> | ||
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| + | ==L== | ||
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| + | ==M== | ||
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| + | ==N== | ||
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| + | ==O== | ||
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| + | ==P== | ||
| + | *<span title="Pretreatment reduces maintenance and prolongs the lifespan of structural stormwater BMPs by removing trash, debris, organic materials, coarse sediments, and associated pollutants prior to entering structural stormwater BMPs. Implementing pretreatment devices also improves aesthetics by capturing debris in focused or hidden areas. Pretreatment practices include settling devices, screens, and pretreatment vegetated filter strips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment''']</span> | ||
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| + | ==Q== | ||
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| + | ==R== | ||
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| + | ==S== | ||
| + | *<span title="Separation distance is defined as the distance from the closest point of a Best Management Practice (BMP) to the particular feature being considered."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_infiltration_and_setback_(separation)_distances '''Site Location / Minimum Setbacks''']</span> | ||
| + | *<span title="Sites with shallow bedrock are defined as having bedrock within 6 feet or less of the ground surface. Shallow bedrock is found in many portions of the state, but is a particular problem in the northeastern region."> [https://stormwater.pca.state.mn.us/index.php?title=Shallow_soils_and_shallow_depth_to_bedrock '''shallow depth to bedrock''']</span> | ||
| + | *<span title="Shallow groundwater is a condition where the seasonal high groundwater table, or saturated soil, is less than 3 feet from the land surface. There is a large portion of the state (more than 50 percent) where the seasonal high water table is located less than 3 feet from the surface."> [https://stormwater.pca.state.mn.us/index.php?title=Shallow_groundwater '''Shallow soils''']</span> | ||
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| + | ==T== | ||
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| + | ==U== | ||
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| + | ==V== | ||
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| + | ==W== | ||
| + | *<span title="the surface and subsurface area surrounding a well or well field that supplies a public water system, through which contaminants are likely to move toward and reach the well or well field (Minnesota Statutes, section 103I.005, subdivision 24)."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_and_wellhead_protection '''Wellhead Protection Areas''']</span> | ||
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| + | ==X== | ||
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| + | ==Y== | ||
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| + | ==Z== | ||
Revision as of 12:45, 6 February 2019
This page lists standard definitions used in hover boxes throughout this manual. Hover boxes allow the user to hover over bolded text and see a definition for that text.
Contents
A
B
- bioinfiltration
- bioretention practice
C
D
- Drainage Area
E