Difference between revisions of "Hover box definitions"
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*<span title="a bioretention practice in which no underdrain is used. All water entering the bioinfiltration practice infiltrates or evapotranspires."> '''bioinfiltration'''</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> | *<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> | ||
| + | *buffer zone | ||
==C== | ==C== | ||
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==D== | ==D== | ||
| + | *Disturbed soils | ||
*<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> | *<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> | ||
*<span title="the surface and subsurface area surrounding a public water supply well, including the wellhead protection area, that must be managed by the entity identified in a wellhead protection plan. This area is delineated using identifiable landmarks that reflect the scientifically calculated wellhead protection area boundaries as closely as possible."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_and_wellhead_protection '''Drinking Water Source Management Area (DWSMA),''']</span> | *<span title="the surface and subsurface area surrounding a public water supply well, including the wellhead protection area, that must be managed by the entity identified in a wellhead protection plan. This area is delineated using identifiable landmarks that reflect the scientifically calculated wellhead protection area boundaries as closely as possible."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_and_wellhead_protection '''Drinking Water Source Management Area (DWSMA),''']</span> | ||
==E== | ==E== | ||
| + | *embankment | ||
| + | *energy dissipation | ||
*<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> | *<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> | ||
*<span title="The part of the wellhead protection area that is defined by a one-year time of travel within the aquifer that is used by the public water supply well (Minnesota Rules, part 4720.5250, subpart 3). It is used to set priorities for managing potential contamination sources within the DWSMA. This area is particularly relevant for assessing impacts from potential sources of pathogen contamination because this time of travel is believed to closely correspond with the survival period of many pathogens."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_and_wellhead_protection '''Emergency Response Area.''']</span> | *<span title="The part of the wellhead protection area that is defined by a one-year time of travel within the aquifer that is used by the public water supply well (Minnesota Rules, part 4720.5250, subpart 3). It is used to set priorities for managing potential contamination sources within the DWSMA. This area is particularly relevant for assessing impacts from potential sources of pathogen contamination because this time of travel is believed to closely correspond with the survival period of many pathogens."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_and_wellhead_protection '''Emergency Response Area.''']</span> | ||
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==L== | ==L== | ||
| + | *live storage | ||
*<span title="low permeability soils typically have low infiltration rates, less than 0.1 inches per hour. These are Hydrologic Soil Group D soils"> '''low permeability soils'''</span> | *<span title="low permeability soils typically have low infiltration rates, less than 0.1 inches per hour. These are Hydrologic Soil Group D soils"> '''low permeability soils'''</span> | ||
==M== | ==M== | ||
*<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 '''media''']</span> | *<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 '''media''']</span> | ||
| + | *moderate to steep slopes | ||
==N== | ==N== | ||
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==P== | ==P== | ||
| + | *perimeter control | ||
| + | *permanent cover | ||
| + | *point of discharge | ||
| + | *<span title="Porosity or void fraction is a measure of the void (i.e. empty) spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%."> '''porosity (f)'''</span> | ||
| + | *<span title="The Prairie du Chien aquifer is the principle aquifer used for drinking water supply in southeast Minnesota. It consists primarily of dolomite. In most areas it is overlain by the St. Peter sandstone, which often acts as a confining bedrock unit. The Jordan sandstone underlies the Prairie du Chien and comprises an important aquifer. The Prairie du Chien and Jordan aquifers are often treated as a single aquifer."> '''Prairie du Chien formation''',</span> | ||
*<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> | *<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== | ==Q== | ||
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==S== | ==S== | ||
| + | *settling ponds | ||
| + | *short-circuiting | ||
| + | *silt fences | ||
*<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="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="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> | *<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> | ||
| + | *sheet flows | ||
*<span title="An Emergency Response Plan defines the actions taken in the initial minutes of an emergency, such as a spill of hazardous material (e.g. gasoline)."> '''spill response plan'''</span> | *<span title="An Emergency Response Plan defines the actions taken in the initial minutes of an emergency, such as a spill of hazardous material (e.g. gasoline)."> '''spill response plan'''</span> | ||
| + | *moderate to steep slopes | ||
| + | *SWPPP | ||
==T== | ==T== | ||
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==V== | ==V== | ||
| + | *vegetated swale | ||
==W== | ==W== | ||
Revision as of 13:20, 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
- best management practice
- bioinfiltration
- bioretention practice
- buffer zone
C
- conventional roof
D
- Disturbed soils
- Drainage Area
- Drinking Water Source Management Area (DWSMA),
E
- embankment
- energy dissipation
- engineered media
- Emergency Response Area.
- evapotranspiration
- (extensive roofs)
F
- fractured flow.
G
- green roof
H
- highly urban and ultra-urban environments
- hydraulic conductivity of the aquifer material (k),
- hydraulic gradient (i),
- hydrogeology
I
- infiltration basin
- intensive roof
J
K
L
- live storage
- low permeability soils
M
- media
- moderate to steep slopes
N
O
P
- perimeter control
- permanent cover
- point of discharge
- porosity (f)
- Prairie du Chien formation,
- pretreatment
Q
R
S
- settling ponds
- short-circuiting
- silt fences
- Site Location / Minimum Setbacks
- shallow depth to bedrock
- Shallow soils
- sheet flows
- spill response plan
- moderate to steep slopes
- SWPPP
T
- travel time
U
- highly urban and ultra-urban environments
- underdrain
V
- vegetated swale
W
- A water table aquifer
- Wellhead Protection Areas
- well logs