Difference between revisions of "Hover box definitions"
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==B== | ==B== | ||
| + | *<span title="A vegetative, structural or combination treatment of streams designed to stabilize the stream and reduce erosion."> '''bank stabilization'''</span> | ||
*<span title="one of many different structural or non–structural methods used to treat runoff"> '''best management practice'''</span> | *<span title="one of many different structural or non–structural methods used to treat runoff"> '''best management 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="a bioretention practice in which no underdrain is used. All water entering the bioinfiltration practice infiltrates or evapotranspires."> '''bioinfiltration'''</span> | ||
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*embankment | *embankment | ||
*<span title="Interception of incoming flow to deflect, scatter, or otherwise neutralize the erosive force of concentrated, moving stormwater."> '''energy dissipation'''</span> | *<span title="Interception of incoming flow to deflect, scatter, or otherwise neutralize the erosive force of concentrated, moving stormwater."> '''energy dissipation'''</span> | ||
| + | *<span title="Permanent or temporary energy dissipators prevent erosion, turbulence, and turbidity where stormwater pipes or ditches discharge to unprotected areas, such as channel banks, slopes, or upslope outfall locations. Their main purpose is to reduce the speed of concentrated flows to prevent scour at conveyance outlets. This practice is also called Scour Protection or Outlet Protection. Common types of outlet protection devices include concrete aprons, riprap-lined basins, and settling basins. "> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Outlet_energy_dissipation'''energy dissipation''']</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="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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==F== | ==F== | ||
* <span title="A type of materials that collects sediments while permeable to water."> '''filter fabric''' </span> | * <span title="A type of materials that collects sediments while permeable to water."> '''filter fabric''' </span> | ||
| + | *<span title="Stream that rapidly collects flows from the steep slopes of its catchment (watershed, basin) and produces flood peaks soon after the rain."> '''flash'''</span> | ||
*<span title="A substance which promotes the clumping of particles such as sediments in stormwater so they settle to the bottom."> '''flocculant'''</span> | *<span title="A substance which promotes the clumping of particles such as sediments in stormwater so they settle to the bottom."> '''flocculant'''</span> | ||
*<span title="Flocculation involves the addition of polymers to clump small particles into larger aggregates so they can be easily separated from water. Flocculation is a physical process and does not involve neutralization of charge."> '''flocculation'''</span> | *<span title="Flocculation involves the addition of polymers to clump small particles into larger aggregates so they can be easily separated from water. Flocculation is a physical process and does not involve neutralization of charge."> '''flocculation'''</span> | ||
*flow paths | *flow paths | ||
| + | *<span title="Fluvial processes include the motion of sediment and erosion or deposition on a river or stream bed.> '''fluvial systems'''</span> | ||
*footprint | *footprint | ||
*<span title="A geologic formation that contains sufficient fissures, fractures, cracks, joints and faults that yields economic quantities of water to boreholes and springs."> '''fractured flow'''</span> | *<span title="A geologic formation that contains sufficient fissures, fractures, cracks, joints and faults that yields economic quantities of water to boreholes and springs."> '''fractured flow'''</span> | ||
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==G== | ==G== | ||
*<span title="Synonymous with slope or incline."> '''grade'''</span> | *<span title="Synonymous with slope or incline."> '''grade'''</span> | ||
| + | *<span title="A grade control structure is used to stabilize a stream, grassed waterway, or gully to reduce channel bed erosion."> '''grade control structures'''</span> | ||
*<span title="Green roofs consist of a series of layers that create an environment suitable for plant growth without damaging the underlying roof system. Green roofs create green space for public benefit, energy efficiency, and stormwater retention/ detention."> '''green roof'''</span> | *<span title="Green roofs consist of a series of layers that create an environment suitable for plant growth without damaging the underlying roof system. Green roofs create green space for public benefit, energy efficiency, and stormwater retention/ detention."> '''green roof'''</span> | ||
*geotextile | *geotextile | ||
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*<span title="Hydraulic conductivity is a property of soils and rocks that describes the ease with which a fluid (usually water) can move through pore spaces or fractures."> '''hydraulic conductivity of the aquifer material (k),'''</span> | *<span title="Hydraulic conductivity is a property of soils and rocks that describes the ease with which a fluid (usually water) can move through pore spaces or fractures."> '''hydraulic conductivity of the aquifer material (k),'''</span> | ||
*<span title="The hydraulic gradient is the change in total head divided the distance over which the change occurs."> '''hydraulic gradient (i),'''</span> | *<span title="The hydraulic gradient is the change in total head divided the distance over which the change occurs."> '''hydraulic gradient (i),'''</span> | ||
| + | *<span title="a mathematical model of a water/sewer/storm system and is used to analyse the system's hydraulic behaviour."> '''hydraulic model'''</span> | ||
*<span title="the branch of geology concerned with water occurring underground or on the surface of the earth"> '''hydrogeology'''</span> | *<span title="the branch of geology concerned with water occurring underground or on the surface of the earth"> '''hydrogeology'''</span> | ||
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*<span title="Infiltration basins, infiltration trenches, dry wells, and underground infiltration systems capture and temporarily store stormwater before allowing it to infiltrate into the soil. As the stormwater penetrates the underlying soil, chemical, biological and physical processes remove pollutants and delay peak stormwater flows."> [https://stormwater.pca.state.mn.us/index.php?title=Infiltration '''infiltration basin''']</span> | *<span title="Infiltration basins, infiltration trenches, dry wells, and underground infiltration systems capture and temporarily store stormwater before allowing it to infiltrate into the soil. As the stormwater penetrates the underlying soil, chemical, biological and physical processes remove pollutants and delay peak stormwater flows."> [https://stormwater.pca.state.mn.us/index.php?title=Infiltration '''infiltration basin''']</span> | ||
*<span title="an intensive green roof has growing medium that is 6 inches or more deep"> '''intensive roof'''</span> | *<span title="an intensive green roof has growing medium that is 6 inches or more deep"> '''intensive roof'''</span> | ||
| + | *<span title=" invert level is the base interior level of a pipe, trench or tunnel; it can be considered the "floor" level"> '''invert'''</span> | ||
==J== | ==J== | ||
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*<span title="Loose stone used to form a foundation for a breakwater to reduce potential for soil erosion."> '''riprap'''</span> | *<span title="Loose stone used to form a foundation for a breakwater to reduce potential for soil erosion."> '''riprap'''</span> | ||
*rock armored | *rock armored | ||
| + | *<span title="Rock riffles are designed to mimic a natural pool upstream of the installed riffle. The riffle serves to reduce upstream slope and velocity. The channel is stabilized by the riffle at the point where velocity increases. Rock riffles also improve fish habitat by increasing downstream oxygen level"> '''rock riffle'''</span> | ||
==S== | ==S== | ||
| + | *<span title="Scour holes are areas where removal of underwater bed material has taken place, and are caused by current or wave activity impinging upon a structure-face"> '''scour hole'''</span> | ||
*settling ponds | *settling ponds | ||
*<span title="The amount of time it takes for a sediment suspended in liquid to sink and collect at the bottom."> '''settling time'''</span> | *<span title="The amount of time it takes for a sediment suspended in liquid to sink and collect at the bottom."> '''settling time'''</span> | ||
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*<span title="Groundwater travel time is the time it takes for water to move horizontally from one location to another. Travel times are typically calculated using Darcy's equation."> '''travel time'''</span> | *<span title="Groundwater travel time is the time it takes for water to move horizontally from one location to another. Travel times are typically calculated using Darcy's equation."> '''travel time'''</span> | ||
*<span title="Turbidity is the cloudiness of a fluid caused by individual particles that are generally invisible to the naked eye. Turbid water has a large number of particles suspended in water and therefore appears cloudy."> '''turbid'''</span> | *<span title="Turbidity is the cloudiness of a fluid caused by individual particles that are generally invisible to the naked eye. Turbid water has a large number of particles suspended in water and therefore appears cloudy."> '''turbid'''</span> | ||
| + | *<span title="Two-stage channel systems consist of an inset channel and small floodplain (benches) within the ditch confines. "> '''two-stage channel'''</span> | ||
==U== | ==U== | ||
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==V== | ==V== | ||
| + | *<span title="vanes are channel-spanning structures that provide grade control, dissipate energy, deflect stream flow to the center of the channel, and create pools"> '''vane weir structures'''</span> | ||
*<span title="A shallow channel with sloping sides that is stabilized with vegetation to serve as a filtration device to capture sediments and transport water."> '''vegetated swale'''</span> | *<span title="A shallow channel with sloping sides that is stabilized with vegetation to serve as a filtration device to capture sediments and transport water."> '''vegetated swale'''</span> | ||
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*<span title="A well log is a record of the measurements of the geologic material (e.g. soil, rocks) penetrated in drilling a well"> [https://stormwater.pca.state.mn.us/index.php?title=Understanding_and_interpreting_soils_and_soil_boring_reports_for_infiltration_BMPs '''well logs''']</span> | *<span title="A well log is a record of the measurements of the geologic material (e.g. soil, rocks) penetrated in drilling a well"> [https://stormwater.pca.state.mn.us/index.php?title=Understanding_and_interpreting_soils_and_soil_boring_reports_for_infiltration_BMPs '''well logs''']</span> | ||
*wet storage | *wet storage | ||
| + | *<span title="Wet swales occur when the water table is located very close to the surface or water does not readily drain out of the swale. A wet swale acts as a very long and linear shallow biofiltration or linear wetland treatment system."> [https://stormwater.pca.state.mn.us/index.php?title=Wet_swale_(wetland_channel) '''wet swale''']</span> | ||
==X== | ==X== | ||
Revision as of 13:38, 28 May 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
- alum
B
- bank stabilization
- best management practice
- bioinfiltration
- bioretention practice
- buffer zones.
C
- clay
- coagulation
- coarse sediment
- concentrated flow
- conventional roof
D
- detention times
- dewatering device
- Disturbed soils
- Drainage Area
- Drinking Water Source Management Area (DWSMA),
- dry storage
E
- earthen berm
- embankment
- energy dissipation
- energy dissipation
- engineered media
- Emergency Response Area.
- evapotranspiration
- extensive roofs
F
- filter fabric
- flash
- flocculant
- flocculation
- flow paths
- fluvial systems
- footprint
- fractured flow
G
- grade
- grade control structures
- green roof
- geotextile
H
- highly urban and ultra-urban environments
- hydraulic conductivity of the aquifer material (k),
- hydraulic gradient (i),
- hydraulic model
- hydrogeology
I
- infiltration basin
- intensive roof
- invert
J
K
L
- live storage
- low permeability soils
M
- media
- moderate to steep slopes
N
O
P
- perimeter control
- permanent cover
- permanent stormwater management
- point of discharge
- polymer
- porosity (f)
- Prairie du Chien formation,
- pretreatment
Q
R
- riprap
- rock armored
- rock riffle
S
- scour hole
- settling ponds
- settling time
- short-circuiting
- shallow depth to bedrock
- Shallow soils
- sheet flows
- side slope
- silt
- silt fence
- Site Location / Minimum Setbacks
- skimmer
- spill response plan
- spillway
- steep slopes
- SWPPP
T
- travel time
- turbid
- two-stage channel
U
- highly urban and ultra-urban environments
- underdrain
V
- vane weir structures
- vegetated swale
W
- A water table aquifer
- Wellhead Protection Areas
- well logs
- wet storage
- wet swale