Difference between revisions of "Hover box definitions"
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==A== | ==A== | ||
| − | *<span title=" | + | *<span title="A broad category of coarse to medium grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates"> '''aggregate'''</span> |
| − | *<span title=" | + | *<span title="Of, relating to, or resulting from the influence of human beings on nature"> '''anthropogenic'''</span> |
*<span title="antidegradation means that no pollutant discharges or activities will be permitted if these may cause surface waters already meeting water quality standards to drop below those standards."> '''antidegradation'''</span> | *<span title="antidegradation means that no pollutant discharges or activities will be permitted if these may cause surface waters already meeting water quality standards to drop below those standards."> '''antidegradation'''</span> | ||
| − | *<span title=" | + | *<span title="A habitat with water. It includes areas that are permanently covered by water and surrounding areas that are occasionally covered by water. Estuaries, rivers, and marshes are examples of aquatic habitats."> '''aquatic habitat'''</span> |
| − | *<span title=" | + | *<span title="Protection of a surface by incorpoating or covering it with an erosion resistant material, such as rock"> '''armoring'''</span> |
| − | *<span title=" | + | *<span title="A high-capacity urban road. The primary function of an arterial road is to deliver traffic from collector roads to freeways or expressways, and between urban centres at the highest level of service possible"> '''arterial roads'''</span> |
*<span title="Alum, or aluminium sulfate, reacts with the bicarbonate alkalinities in water and forms a precipitate which attracts other fine particles and suspended material and settles out of the water column."> '''alum'''</span> | *<span title="Alum, or aluminium sulfate, reacts with the bicarbonate alkalinities in water and forms a precipitate which attracts other fine particles and suspended material and settles out of the water column."> '''alum'''</span> | ||
| − | *<span title=" | + | *<span title="An aquatic environment lacking oxygen"> '''anoxic'''</span> |
==B== | ==B== | ||
| − | *<span title=" | + | *<span title="A device used to restrain the flow of a fluid, gas, or loose material or to prevent the spreading of sound or light in a particular direction"> '''baffle'''</span> |
*<span title="A vegetative, structural or combination treatment of streams designed to stabilize the stream and reduce erosion."> '''bank stabilization'''</span> | *<span title="A vegetative, structural or combination treatment of streams designed to stabilize the stream and reduce erosion."> '''bank stabilization'''</span> | ||
*<span title="Baseflow (also called drought flow, groundwater recession flow, low flow, low-water flow, low-water discharge and sustained or fair-weather runoff) is the portion of streamflow delayed shallow subsurface flow".> '''baseflow'''</span> | *<span title="Baseflow (also called drought flow, groundwater recession flow, low flow, low-water flow, low-water discharge and sustained or fair-weather runoff) is the portion of streamflow delayed shallow subsurface flow".> '''baseflow'''</span> | ||
| − | *<span title=" | + | *<span title="The year from which stormwater practices can be credited toward meeting a total maximum daily load (TMDL) wasteload allocation (WLA)"> '''[https://stormwater.pca.state.mn.us/index.php?title=Baseline_year baseline year]'''</span> |
*<span title="Basins are stormwater best management practices (BMPs) that are an engineered pool that promotes settling of solids (e.g., pond forebay, sump, hydrodynamic separator, and catch basin)."> '''basin'''</span> | *<span title="Basins are stormwater best management practices (BMPs) that are an engineered pool that promotes settling of solids (e.g., pond forebay, sump, hydrodynamic separator, and catch basin)."> '''basin'''</span> | ||
*<span title="Bathymetric surveys measure the depth of a water body as well as map the underwater features of a water body."> '''[https://www.usgs.gov/centers/oki-water/science/bathymetric-surveys?qt-science_center_objects=0#qt-science_center_objects bathymetric survey]'''</span> | *<span title="Bathymetric surveys measure the depth of a water body as well as map the underwater features of a water body."> '''[https://www.usgs.gov/centers/oki-water/science/bathymetric-surveys?qt-science_center_objects=0#qt-science_center_objects bathymetric survey]'''</span> | ||
*<span title="a level space, shelf, or raised barrier (usually made of compacted soil) separating two areas"> '''berm'''</span> | *<span title="a level space, shelf, or raised barrier (usually made of compacted soil) separating two areas"> '''berm'''</span> | ||
| − | *<span title=" | + | *<span title="One of many different structural or non–structural methods used to treat runoff"> '''best management practice'''</span> |
*<span title="Biochar is a charcoal-like substance that’s made by burning organic material from biomass. Biochar has useful applications for soil and engineered media used in stormwater practices."> '''[https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management biochar]'''</span> | *<span title="Biochar is a charcoal-like substance that’s made by burning organic material from biomass. Biochar has useful applications for soil and engineered media used in stormwater practices."> '''[https://stormwater.pca.state.mn.us/index.php?title=Biochar_and_applications_of_biochar_in_stormwater_management biochar]'''</span> | ||
| − | *<span title=" | + | *<span title="The proportion of a nutrient that is digested, absorbed and metabolized by an organism through normal pathways."> '''bioavailable'''</span> |
| − | *<span title=" | + | *<span title="The decomposition of organic material by microorganisms"> '''biodegradation'''</span> |
| − | *<span title=" | + | *<span title="A bioretention practice having an underdrain. All water entering the practice is filtered through engineered media and filtered water is returned to the storm sewer system."> [https://stormwater.pca.state.mn.us/index.php?title=Bioretention '''biofiltration''']</span> |
| − | *<span title=" | + | *<span title="A bioretention practice in which no underdrain is used. All water entering the bioinfiltration practice infiltrates or evapotranspires."> '''bioinfiltration'''</span> |
*<span title="The 5 day biochemical oxygen demand, or BOD5, is water quality parameter. BOD5 measures the quantity of biodegradable organic matter contained in water. This biodegradable organic matter is evaluated using the oxygen consumed by the microorganisms involved in natural purification mechanisms."> '''biological oxygen demand'''</span> | *<span title="The 5 day biochemical oxygen demand, or BOD5, is water quality parameter. BOD5 measures the quantity of biodegradable organic matter contained in water. This biodegradable organic matter is evaluated using the oxygen consumed by the microorganisms involved in natural purification mechanisms."> '''biological oxygen demand'''</span> | ||
| − | *<span title=" | + | *<span title="Organic matter used as a fuel"> '''biomass'''</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> | ||
*<span title="Bioswales are landscape elements designed to concentrate or remove debris and pollution out of surface runoff water. They consist of a swaled drainage course with gently sloped sides (less than 6%) and filled with vegetation, compost and/or riprap.> '''Bioswale'''</span> | *<span title="Bioswales are landscape elements designed to concentrate or remove debris and pollution out of surface runoff water. They consist of a swaled drainage course with gently sloped sides (less than 6%) and filled with vegetation, compost and/or riprap.> '''Bioswale'''</span> | ||
*<span title="A divergence from the expected biological condition of a lake, stream, or wetland. Practical methods exist for assessing impairment to a biological community, and they must be tested and refined for application to Minnesota."> '''biotic impairment'''</span> | *<span title="A divergence from the expected biological condition of a lake, stream, or wetland. Practical methods exist for assessing impairment to a biological community, and they must be tested and refined for application to Minnesota."> '''biotic impairment'''</span> | ||
| − | *<span title=" | + | *<span title="A former industrial or commercial site where future use is affected by real or perceived environmental contamination"> '''brownfield''' </span> |
| − | *<span title=" | + | *<span title="Removal of vegetative brush"> '''Brushing''' </span> |
| − | *<span title=" | + | *<span title="A vegetative setback between development and streams, lakes, and wetlands whose aim is to physically protect and separate the resource from future disturbance or encroachment"> [https://stormwater.pca.state.mn.us/index.php?title=Construction_stormwater_best_management_practice_%E2%80%93_buffer_zones '''buffer zones''']</span> |
| − | *<span title=" | + | *<span title="The accumulation of sediment and other pollutants on impermeable surfaces"> '''build-up'''</span> |
*<span title="the weight of soil in a given volume"> [https://stormwater.pca.state.mn.us/index.php/Alleviating_compaction_from_construction_activities '''bulk density''']</span> | *<span title="the weight of soil in a given volume"> [https://stormwater.pca.state.mn.us/index.php/Alleviating_compaction_from_construction_activities '''bulk density''']</span> | ||
*<span title="Stormwater runoff in excess of the design flow, which is diverted around a stormwater structure"> '''bypass flow'''</span> | *<span title="Stormwater runoff in excess of the design flow, which is diverted around a stormwater structure"> '''bypass flow'''</span> | ||
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*<span title="The area that drains to a point of interest, such as a stormwater BMP or a receiving water"> '''catchment'''</span> | *<span title="The area that drains to a point of interest, such as a stormwater BMP or a receiving water"> '''catchment'''</span> | ||
*<span title="Categorical wasteload allocations assign a cumulative pollutant load to more than one permitted entity. Individual allocations assign separate loads to each permitted entity."> '''categorical wasteload allocation'''</span> | *<span title="Categorical wasteload allocations assign a cumulative pollutant load to more than one permitted entity. Individual allocations assign separate loads to each permitted entity."> '''categorical wasteload allocation'''</span> | ||
| − | *<span title=" | + | *<span title="A measure of how many cations can be retained on soil particle surfaces"> '''cation exchange capacity'''</span> |
| − | *<span title=" | + | *<span title="Chronological documentation or paper trail that records the sequence of custody, control, transfer, analysis, and disposition of physical or electronic evidence"> '''chain of custody'''</span> |
*<span title="Chemical oxygen demand (COD) is the amount of oxygen necessary to oxidize all of the organic carbon completely to CO2 and H2O."> '''chemical oxygen demans'''</span> | *<span title="Chemical oxygen demand (COD) is the amount of oxygen necessary to oxidize all of the organic carbon completely to CO2 and H2O."> '''chemical oxygen demans'''</span> | ||
*<span title="A check dam is a structure installed perpendicular to flow in a natural or manmade conveyance channel to reduce flow velocity. By slowing flow velocities, check dams can serve multiple functions including reduction of channel scour and erosion, enhancement of sediment trapping, and greater treatment of the water quality control volume via enhanced water detention or retention. Typical check dam materials include rock, earth, wood, and concrete. "> '''check dam'''</span> | *<span title="A check dam is a structure installed perpendicular to flow in a natural or manmade conveyance channel to reduce flow velocity. By slowing flow velocities, check dams can serve multiple functions including reduction of channel scour and erosion, enhancement of sediment trapping, and greater treatment of the water quality control volume via enhanced water detention or retention. Typical check dam materials include rock, earth, wood, and concrete. "> '''check dam'''</span> | ||
| − | *<span title=" | + | *<span title="A waterproof receptacle for holding liquids, usually water. Cisterns are often built to catch and store rainwater."> '''cistern'''</span> |
| − | *<span title=" | + | *<span title="Fine-grained soil particles with a particle diameter less than 0.002 mm"> '''clay'''</span> |
*<span title="The Clean Water Act is a U.S. federal law that regulates the discharge of pollutants into the nation's surface waters, including lakes, rivers, streams, wetlands, and coastal areas."> '''[https://www.epa.gov/laws-regulations/summary-clean-water-act Clean Water Act]'''</span> | *<span title="The Clean Water Act is a U.S. federal law that regulates the discharge of pollutants into the nation's surface waters, including lakes, rivers, streams, wetlands, and coastal areas."> '''[https://www.epa.gov/laws-regulations/summary-clean-water-act Clean Water Act]'''</span> | ||
*<span title="coagulation involves the addition of polymers that clump small particles into larger aggregates for easy separation from water. Coagulation is a chemical process that involves neutralization of charge."> '''coagulation'''</span> | *<span title="coagulation involves the addition of polymers that clump small particles into larger aggregates for easy separation from water. Coagulation is a chemical process that involves neutralization of charge."> '''coagulation'''</span> | ||
| − | *<span title=" | + | *<span title="There is no specific definition of coarse sediment, but in stormwater management it typically refers to coarse sand, which includes particles greater than 1/2-mm in diameter, using the Wentworth scale."> '''coarse sediment'''</span> |
*<span title="Cofferdams and small dikes are temporary barriers or dams used to stop or redirect the flow of water from a construction site work area, such as a support column foundation, a shoreline retaining wall location, a trench crossing at a stream or river, or other area adjacent to or within a body of water."> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Diversion_barrier_controls_(cofferdams/temporary_dikes) '''cofferdam''']</span> | *<span title="Cofferdams and small dikes are temporary barriers or dams used to stop or redirect the flow of water from a construction site work area, such as a support column foundation, a shoreline retaining wall location, a trench crossing at a stream or river, or other area adjacent to or within a body of water."> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Diversion_barrier_controls_(cofferdams/temporary_dikes) '''cofferdam''']</span> | ||
| − | *<span title=" | + | *<span title="Fiber from the outer husk of the coconut"> '''[https://stormwater.pca.state.mn.us/index.php?title=Coir_and_applications_of_coir_in_stormwater_management coir]'''</span> |
| − | *<span title=" | + | *<span title="A low-to-moderate-capacity road which serves to move traffic from local streets to arterial roads. Unlike arterials, collector roads are designed to provide access to residential properties."> '''collector roadway''' </span> |
*<span title="Combined sewer systems are sewers that are designed to collect rainwater runoff, domestic sewage, and industrial wastewater in the same pipe."> '''combined sewer'''</span> | *<span title="Combined sewer systems are sewers that are designed to collect rainwater runoff, domestic sewage, and industrial wastewater in the same pipe."> '''combined sewer'''</span> | ||
| − | *<span title=" | + | *<span title="The process in which a stress applied to a soil causes densification as air is displaced from the pores between the soil grains. Compaction is desired in construction practices and undesirable when promoting infiltration into soil."> [https://stormwater.pca.state.mn.us/index.php/Alleviating_compaction_from_construction_activities '''compacted soil''']</span> |
| − | *<span title=" | + | *<span title="The product resulting from the controlled biological decomposition of organic materials that has been sanitized through the generation of heat and stabilized to the point that it is beneficial to plant growth"> [https://stormwater.pca.state.mn.us/index.php?title=Compost_and_stormwater_management '''compost''']</span> |
*<span title="Compost stability and maturity are comprehensive properties including indicating the degree of organic matter decomposition. mature compost have reduced rates of decomposition."> compost maturity</span> | *<span title="Compost stability and maturity are comprehensive properties including indicating the degree of organic matter decomposition. mature compost have reduced rates of decomposition."> compost maturity</span> | ||
*<span title="Storm runoff, flowing in a confined feature such as a channel, ditch, swale, river, etc. Concentrated flow often occurs after a maximum of 300 feet of sheet flow. concentrated flow can lead to severe down- or side-cutting in the resulting channel."> '''concentrated flow'''</span> | *<span title="Storm runoff, flowing in a confined feature such as a channel, ditch, swale, river, etc. Concentrated flow often occurs after a maximum of 300 feet of sheet flow. concentrated flow can lead to severe down- or side-cutting in the resulting channel."> '''concentrated flow'''</span> | ||
*<span title="Occurs where water flow converges, effectively extending the stream network into the field"> '''concentrated stormwater runoff'''</span> | *<span title="Occurs where water flow converges, effectively extending the stream network into the field"> '''concentrated stormwater runoff'''</span> | ||
| − | *<span title=" | + | *<span title="A subset of impervious cover, which is directly connected to a drainage system or a water body via continuous impervious surfaces."> '''connected impervious'''</span> |
| − | *<span title=" | + | *<span title="A model of a physical system that continuously tracks system response according to a set of equations typically involving differential equations."> '''continuous model'''</span> |
| − | *<span title=" | + | *<span title="The total drainage area, including pervious and impervious surfaces, contributing to a BMP"> '''[https://stormwater.pca.state.mn.us/index.php?title=Contributing_drainage_area_to_stormwater_BMPs contributing drainage area]'''</span> |
*<span title="A conventional roof is a standard roof with an impervious surface, such as an asphalt roof"> '''conventional roof'''</span> | *<span title="A conventional roof is a standard roof with an impervious surface, such as an asphalt roof"> '''conventional roof'''</span> | ||
*<span title="Curb cuts allow stormwater to enter a stormwater facility at specific points, thus concentrating runoff both in velocity and volume."> '''curb-cut'''</span> | *<span title="Curb cuts allow stormwater to enter a stormwater facility at specific points, thus concentrating runoff both in velocity and volume."> '''curb-cut'''</span> | ||
| − | *<span title=" | + | *<span title="Is a traffic control measure used to extend the sidewalk, reducing the crossing distance and allowing pedestrians about to cross and approaching vehicle drivers to see each other when vehicles parked in a parking lane would otherwise block visibility."> '''curb bump-out'''</span> |
*<span title="The SCS curve number method is a widely used method for determining the approximate amount of runoff from a rainfall even in a particular area. The curve number is based on the area's hydrologic soil group, land use , treatment and hydrologic condition."> '''curve number method'''</span> | *<span title="The SCS curve number method is a widely used method for determining the approximate amount of runoff from a rainfall even in a particular area. The curve number is based on the area's hydrologic soil group, land use , treatment and hydrologic condition."> '''curve number method'''</span> | ||
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*<span title="Deicing typically refers to removal of salt from impervious surfaces, such as roads, driveways, parking lots, and sidewalks. Chemicals, most commonly sodium chloride, are often used for deicing."> '''deicing'''</span> | *<span title="Deicing typically refers to removal of salt from impervious surfaces, such as roads, driveways, parking lots, and sidewalks. Chemicals, most commonly sodium chloride, are often used for deicing."> '''deicing'''</span> | ||
*<span title="Depression storage refers to small low points in undulating terrain that can store precipitation that otherwise would become runoff. The precipitation stored in these depressions is then either removed through infiltration into the ground or by evaporation."> '''depression storage'''</span> | *<span title="Depression storage refers to small low points in undulating terrain that can store precipitation that otherwise would become runoff. The precipitation stored in these depressions is then either removed through infiltration into the ground or by evaporation."> '''depression storage'''</span> | ||
| − | *<span title=" | + | *<span title="The rate of flow which a device is designed to handle"> '''design flow'''</span> |
| − | *<span title=" | + | *<span title="The volume of flow which a device is designed to handle"> '''design flow'''</span> |
*detention times | *detention times | ||
| − | *<span title=" | + | *<span title="The removal of surface or ground water to dry and/or solidify a construction site to enable construction activity> [https://stormwater.pca.state.mn.us/index.php?title=Construction_stormwater_treatment_-_dewatering,_including_chemical_treatment_and_sediment_filtration '''dewatering''']</span> |
*dewatering device | *dewatering device | ||
| − | *<span title=" | + | *<span title="Impervious areas that are hydraulically connected to the conveyance system (e.g streets with curbs, catch basins, storm drains) and to the watershed outlet point without flowing over pervious areas."> '''directly connected impervious'''</span> |
*<span title="Dissolved oxygen (DO) is a measure of how much oxygen is dissolved in the water - the amount of oxygen available to living aquatic organisms."> '''dissolved oxygen'''</span> | *<span title="Dissolved oxygen (DO) is a measure of how much oxygen is dissolved in the water - the amount of oxygen available to living aquatic organisms."> '''dissolved oxygen'''</span> | ||
*<span title="Dissolved phosphorus is the phosphorus that remains in water after that water has been filtered to remove particulate matter."> '''dissolved phosphorus'''</span> | *<span title="Dissolved phosphorus is the phosphorus that remains in water after that water has been filtered to remove particulate matter."> '''dissolved phosphorus'''</span> | ||
| − | *<span title=" | + | *<span title="Roof runoff that has been collected in gutters and piped directly to streets, storm drains, and streams and redirects it away from impervious surfaces to land-scaped areas"> '''disconnected roof runoff'''</span> |
*Disturbed soils | *Disturbed soils | ||
*<span title="Check dams, also called ditch checks, dikes, wattles, etc., are temporary or permanent linear structures placed perpendicular to concentrated flows such as in drainage ditches, channels, and swales to reduce flow velocities and prevent channel down-cutting."> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Check_dams_(ditch_checks,_ditch_dikes) '''ditch checks''']</span> | *<span title="Check dams, also called ditch checks, dikes, wattles, etc., are temporary or permanent linear structures placed perpendicular to concentrated flows such as in drainage ditches, channels, and swales to reduce flow velocities and prevent channel down-cutting."> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Check_dams_(ditch_checks,_ditch_dikes) '''ditch checks''']</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="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=" | + | *<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=" | + | *<span title="Stones placed at the entrance to a rain garden to help slow the speed at which runoff enters the gardens> '''“drop waterfalls”'''</span> |
*dry storage | *dry storage | ||
*<span title="Dry swales, sometimes called grass swales, are similar to bioretention cells but are configured as shallow, linear channels. They typically have vegetative cover such as turf or native perennial grasses. Dry swales may be constructed as filtration or infiltration practices, depending on soils."> [https://stormwater.pca.state.mn.us/index.php?title=Dry_swale_(Grass_swale) '''dry swale''']</span> | *<span title="Dry swales, sometimes called grass swales, are similar to bioretention cells but are configured as shallow, linear channels. They typically have vegetative cover such as turf or native perennial grasses. Dry swales may be constructed as filtration or infiltration practices, depending on soils."> [https://stormwater.pca.state.mn.us/index.php?title=Dry_swale_(Grass_swale) '''dry swale''']</span> | ||
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==E== | ==E== | ||
*earthen berm | *earthen berm | ||
| − | *<span title=" | + | *<span title="Constructed with clayey soils with low permeability and therefore are considered impermeable."> [https://stormwater.pca.state.mn.us/index.php?title=Check_dams_for_stormwater_swales Earthen check dams]</span> |
*<span title="An ecoregion, is a geographical area where the land use (agriculture, forest, prairie, etc.), underlying geology, potential native plant community, and soils are relatively similar."> '''ecoregion'''</span> | *<span title="An ecoregion, is a geographical area where the land use (agriculture, forest, prairie, etc.), underlying geology, potential native plant community, and soils are relatively similar."> '''ecoregion'''</span> | ||
| − | *<span title=" | + | *<span title="A measure of the amount of salts in soil"> '''electrical conductivity'''</span> |
*<span title="A levee, an artificial bank raised above the immediately surrounding land to redirect or prevent flooding"> '''embankment'''</span> | *<span title="A levee, an artificial bank raised above the immediately surrounding land to redirect or prevent flooding"> '''embankment'''</span> | ||
*<span title="A model based on experimental data. Empirical models can be deterministic or probabilistic."> '''empirical model'''</span> | *<span title="A model based on experimental data. Empirical models can be deterministic or probabilistic."> '''empirical model'''</span> | ||
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*<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> | ||
| − | *<span title=" | + | *<span title="A stream that flows only briefly during and following a period of rainfall in the immediate locality."> '''ephemeral stream'''</span> |
*<span title="typically biodegradable, open-weave blankets that provide temporary cover and support for establishing vegetation on bare soil areas."> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_erosion_control_blankets_and_anchoring_devices '''erosion control blankets''']</span> | *<span title="typically biodegradable, open-weave blankets that provide temporary cover and support for establishing vegetation on bare soil areas."> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_erosion_control_blankets_and_anchoring_devices '''erosion control blankets''']</span> | ||
| − | *<span title=" | + | *<span title="A kind of mulch made of partially composted bark, sand, gravel, stone and wood fragments"> '''erosion control mix'''</span> |
| − | *<span title=" | + | *<span title="Practices designed to prevent or minimize erosion> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices '''erosion protection''']</span> |
*<span title="Loss of water to the atmosphere as a result of the joint processes of evaporation and transpiration through vegetation"> '''evapotranspiration'''</span> | *<span title="Loss of water to the atmosphere as a result of the joint processes of evaporation and transpiration through vegetation"> '''evapotranspiration'''</span> | ||
| − | *<span title=" | + | *<span title="The average pollutant concentration for a given stormwater event, expressed in units of mass per volume (e.g., mg/L)"> '''event mean concentration'''</span> |
| − | *<span title=" The exchangeable sodium percentage (ESP) is calculated as follows: ESP = Exchangeable {(Na)/(Ca + Mg + K + Na)} x 100"> '''exchangeable sodium percent'''</span> | + | *<span title="The exchangeable sodium percentage (ESP) is calculated as follows: ESP = Exchangeable {(Na)/(Ca + Mg + K + Na)} x 100"> '''exchangeable sodium percent'''</span> |
*<span title="An amount of pollutant, usually expressed in mass per unit area per unit time, transported off-site, most often with stormwater runoff"> '''export'''</span> | *<span title="An amount of pollutant, usually expressed in mass per unit area per unit time, transported off-site, most often with stormwater runoff"> '''export'''</span> | ||
| − | *<span title=" | + | *<span title="An extensive green roof has growing medium that is 6 inches or less deep"> '''extensive roofs'''</span> |
==F== | ==F== | ||
| − | *<span title=" | + | *<span title="A raw material used to provide energy"> '''feedstock'''</span> |
| − | *<span title=" | + | *<span title="A temporary erosion control and sediment control device used on construction sites to protect water quality in nearby streams, rivers, lakes and seas from sediment erosion"> '''fiber roll'''</span> |
| − | *<span title=" | + | *<span title="A material that is used to fill in a depression or hole in the ground, or create mounds or otherwise artificially change the elevation of the ground."> '''fill'''</span> |
*<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="Filtration Best Management Practices (BMPs) treat urban stormwater runoff as it flows through a filtering medium, such as sand or an organic material. They are generally used on small drainage areas (5 acres or less) and are primarily designed for pollutant removal. They are effective at removing total suspended solids (TSS), particulate phosphorus, metals, and most organics. They are less effective for soluble pollutants such as dissolved phosphorus, chloride, and nitrate."> [https://stormwater.pca.state.mn.us/index.php?title=Filtration '''filtration''']</span> | *<span title="Filtration Best Management Practices (BMPs) treat urban stormwater runoff as it flows through a filtering medium, such as sand or an organic material. They are generally used on small drainage areas (5 acres or less) and are primarily designed for pollutant removal. They are effective at removing total suspended solids (TSS), particulate phosphorus, metals, and most organics. They are less effective for soluble pollutants such as dissolved phosphorus, chloride, and nitrate."> [https://stormwater.pca.state.mn.us/index.php?title=Filtration '''filtration''']</span> | ||
*<span title="an area of permanent vegetation or other material used to reduce sediment, organics, nutrients, pesticides, and other contaminants from runoff and to maintain or improve water quality.> '''[https://stormwater.pca.state.mn.us/index.php?title=Overview_for_pretreatment_vegetated_filter_strips filter strip]'''</span> | *<span title="an area of permanent vegetation or other material used to reduce sediment, organics, nutrients, pesticides, and other contaminants from runoff and to maintain or improve water quality.> '''[https://stormwater.pca.state.mn.us/index.php?title=Overview_for_pretreatment_vegetated_filter_strips filter strip]'''</span> | ||
| − | *<span title=" | + | *<span title="Soil with a diameter of 0.063 mm to 0.2 mm"> '''fine sand'''</span> |
*<span title="the condition in which a project site does not pose any additional sediment discharge risk than it did prior to beginning project construction"> '''final stabilization'''</span> | *<span title="the condition in which a project site does not pose any additional sediment discharge risk than it did prior to beginning project construction"> '''final stabilization'''</span> | ||
| − | *<span title=" | + | *<span title="Soil consisting primarily of clay and silt"> '''fine textured soil'''</span> |
| − | *<span title=" | + | *<span title="The initial surface runoff of a rainstorm. During this phase, water pollution entering storm drains in areas with high proportions of impervious surfaces is typically more concentrated compared to the remainder of the storm"> '''first flush'''</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="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="Floatables are defined as litter that floats on the surface of the water. Floatables include many plastics such as milk bottles, soda bottles, motor oil containers, and plastic grocery and shopping bags, as well as aluminum products such as empty cans."> '''floatables'''</span> | *<span title="Floatables are defined as litter that floats on the surface of the water. Floatables include many plastics such as milk bottles, soda bottles, motor oil containers, and plastic grocery and shopping bags, as well as aluminum products such as empty cans."> '''floatables'''</span> | ||
| Line 130: | Line 130: | ||
*<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=" | + | *<span title="Stormwater devices in which runoff water is treated as it flows through the device, typically through filtration, settling, or straining. These devices do not reduce the volume of runoff."> '''flow-through device'''</span> |
*<span title="A flow-weighted mean is the mean of a quantity after it is weighted proportional to a corresponding flow rate."> '''[https://ncwqr.files.wordpress.com/2017/06/d-time-weighted-and-flow-weighted-mean-concentrations.pdf flow-weighted mean concentration]'''</span> | *<span title="A flow-weighted mean is the mean of a quantity after it is weighted proportional to a corresponding flow rate."> '''[https://ncwqr.files.wordpress.com/2017/06/d-time-weighted-and-flow-weighted-mean-concentrations.pdf flow-weighted mean concentration]'''</span> | ||
*<span title="Fluvial processes include the motion of sediment and erosion or deposition on a river or stream bed.> '''fluvial systems'''</span> | *<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=" | + | *<span title="An artificial pool of water in front of a larger body of water. The larger body of water may be natural or man-made. Forebays have a number of functions. They may be used upstream of reservoirs to trap sediment and debris (sometimes called a sediment forebay) in order to keep the reservoir clean."> '''[https://stormwater.pca.state.mn.us/index.php?title=Pretreatment_-_Screening_and_straining_devices,_including_forebays forebay]'''</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> | *<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> | ||
==G== | ==G== | ||
*<span title="A geographic information system (GIS) is a framework for gathering, managing, and analyzing data. It analyzes spatial location and organizes layers of information into visualizations using maps and 3D scenes."> '''Geographic Information System (GIS)'''</span> | *<span title="A geographic information system (GIS) is a framework for gathering, managing, and analyzing data. It analyzes spatial location and organizes layers of information into visualizations using maps and 3D scenes."> '''Geographic Information System (GIS)'''</span> | ||
| − | *<span title=" | + | *<span title="To calculate the geometric mean of 2 numbers, multiply those 2 numbers together, then calculate the square root of the resulting product. If you have 3 or more numbers, multiply all of the numbers together, then raise them to the power of 1 divided by n, where n is the total number of entries in the data set."> '''geometric mean'''</span> |
*<span title="Geotextiles are permeable fabrics which, when used in association with soil, have the ability to separate, filter, reinforce, protect, or drain"> '''geotextile'''</span> | *<span title="Geotextiles are permeable fabrics which, when used in association with soil, have the ability to separate, filter, reinforce, protect, or drain"> '''geotextile'''</span> | ||
*<span title="Synonymous with slope or incline."> '''grade'''</span> | *<span title="Synonymous with slope or incline."> '''grade'''</span> | ||
| Line 146: | Line 146: | ||
*<span title="Green stormwater infrastructure is designed to mimic nature and capture rainwater where it falls. Green infrastructure reduces and treats stormwater at its source while while also providing multiple community benefits such as improvements in water quality, reduced flooding, habitat, carbon capture, etc."> '''green infrastructure'''</span> | *<span title="Green stormwater infrastructure is designed to mimic nature and capture rainwater where it falls. Green infrastructure reduces and treats stormwater at its source while while also providing multiple community benefits such as improvements in water quality, reduced flooding, habitat, carbon capture, etc."> '''green infrastructure'''</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."> '''[https://stormwater.pca.state.mn.us/index.php?title=Green_roofs 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."> '''[https://stormwater.pca.state.mn.us/index.php?title=Green_roofs green roof]'''</span> | ||
| − | *<span title=" | + | *<span title="An area of grass, trees, or other vegetation set apart for recreational or aesthetic purposes in an otherwise urban environment."> '''green space'''</span> |
*geotextile | *geotextile | ||
| − | *<span title" | + | *<span title"Large particles, including sediment, debris, and litter"> '''gross solids'''</span> |
*<span title="Grubbing or clearing denotes the removal of trees, shrubs, stumps, and rubbish from a site, often from the site on which a transportation or utility corridor"> '''grubbing'''</span> | *<span title="Grubbing or clearing denotes the removal of trees, shrubs, stumps, and rubbish from a site, often from the site on which a transportation or utility corridor"> '''grubbing'''</span> | ||
==H== | ==H== | ||
| − | *<span title=" | + | *<span title="A measure of dissolved minerals in water, specifically calcium and magnesium. Hard water results in mineral buildup on fixtures and poor soap and/or detergent performance."> '''hardness'''</span> |
| − | *<span title=" | + | *<span title="A plant whose growth dies down annually but whose roots or other underground parts survive"> '''herbaceous perennial'''</span> |
*<span title="High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a thermoplastic polymer produced from the monomer ethylene.It has a high strength-to-density ratio."> '''High-density polyethylene'''</span> | *<span title="High-density polyethylene (HDPE) or polyethylene high-density (PEHD) is a thermoplastic polymer produced from the monomer ethylene.It has a high strength-to-density ratio."> '''High-density polyethylene'''</span> | ||
*<span title="Highly urban and ultra-urban settings have a large percentage of impermeable surface and typically have limited space to install surface BMPs. An example would be a downtown area."> '''highly urban and ultra-urban environments'''</span> | *<span title="Highly urban and ultra-urban settings have a large percentage of impermeable surface and typically have limited space to install surface BMPs. An example would be a downtown area."> '''highly urban and ultra-urban environments'''</span> | ||
| Line 159: | Line 159: | ||
*<span title="The surface or profile of water flowing in an open channel or a pipe flowing partially full."> '''hydraulic grade line'''</span> | *<span title="The surface or profile of water flowing in an open channel or a pipe flowing partially full."> '''hydraulic grade line'''</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=" | + | *<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=" | + | *<span title="Stormwater management devices that use cyclonic separation to control water pollution. They are designed as flow-through structures with a settling or separation unit to remove sediment and other pollutants."> '''hydrodynamic separator'''</span> |
| − | *<span title=" | + | *<span title="The branch of geology concerned with water occurring underground or on the surface of the earth"> '''hydrogeology'''</span> |
*<span title="A soil classification system (Natural Resource Conservation System) based on runoff potential. Groups include A soils (coarse textured with very low runoff potential), B soils (medium coarse textured with low runoff potential), C soils (fine to moderate textured with moderate runoff potential), and D soils (fine textured with high runoff potential)."> '''[https://stormwater.pca.state.mn.us/index.php?title=Design_infiltration_rates hydrologic soil group]'''</span> | *<span title="A soil classification system (Natural Resource Conservation System) based on runoff potential. Groups include A soils (coarse textured with very low runoff potential), B soils (medium coarse textured with low runoff potential), C soils (fine to moderate textured with moderate runoff potential), and D soils (fine textured with high runoff potential)."> '''[https://stormwater.pca.state.mn.us/index.php?title=Design_infiltration_rates hydrologic soil group]'''</span> | ||
| − | *<span title=" | + | *<span title="A planting process that uses a slurry of seed and mulch. It is often used as an erosion control technique on construction sites, as an alternative to the traditional process of broadcasting or sowing dry seed."> '''[https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_temporary_seeding_and_stabilization hydroseed]'''</span> |
==I== | ==I== | ||
| − | *<span title=" | + | *<span title="Any flow or dumping to a municipal separate storm sewer of any substance that is not composed entirely of stormwater; exceptions are non-stormwater discharges allowed by the NPDES Permit and discharges resulting from emergency firefighting activities."> '''illicit discharge'''</span> |
*<span title="Impaired waters are bodies of water that exceed the limits of one or more parameters for surface water quality"> [https://stormwater.pca.state.mn.us/index.php?title=Special_Waters_and_Impaired_Waters '''impaired water''']</span> | *<span title="Impaired waters are bodies of water that exceed the limits of one or more parameters for surface water quality"> [https://stormwater.pca.state.mn.us/index.php?title=Special_Waters_and_Impaired_Waters '''impaired water''']</span> | ||
*<span title="Routing impervious surfaces to pervious surfaces. An example is routing runoff from a parking lot to a turfed area."> '''impervious disconnection'''</span> | *<span title="Routing impervious surfaces to pervious surfaces. An example is routing runoff from a parking lot to a turfed area."> '''impervious disconnection'''</span> | ||
| − | *<span title=" | + | *<span title="A plan that specifies the type and quantity of corrective measures needed to achieve the pollutant loads calculated in a TMDL and implementing those plans will help to achieve that goal."> '''implementation plan'''</span> |
*<span title="A stream channel in which the bed has dropped and as a result, the stream is disconnected from its floodplain. Incised channels are often referred to as degraded channels."> '''incised stream'''</span> | *<span title="A stream channel in which the bed has dropped and as a result, the stream is disconnected from its floodplain. Incised channels are often referred to as degraded channels."> '''incised stream'''</span> | ||
*<span title="Infiltration Best Management Practices (BMPs) treat urban stormwater runoff as it flows through a filtering medium and into underlying soil, where it may eventually percolate into groundwater. The filtering media is typically coarse-textured and may contain organic material, as in the case of bioinfiltration BMPs."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_infiltration_Best_Management_Practices '''infiltration''']</span> | *<span title="Infiltration Best Management Practices (BMPs) treat urban stormwater runoff as it flows through a filtering medium and into underlying soil, where it may eventually percolate into groundwater. The filtering media is typically coarse-textured and may contain organic material, as in the case of bioinfiltration BMPs."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_infiltration_Best_Management_Practices '''infiltration''']</span> | ||
| Line 175: | Line 175: | ||
*<span title="The infiltration rate is the velocity or speed at which water enters into the soil"> '''infiltration rate'''</span> | *<span title="The infiltration rate is the velocity or speed at which water enters into the soil"> '''infiltration rate'''</span> | ||
*<span title="Inlets collect excess stormwater from the street, transition the flow into storm drains, and can provide maintenance access to the storm drain system."> '''inlet structure'''</span> | *<span title="Inlets collect excess stormwater from the street, transition the flow into storm drains, and can provide maintenance access to the storm drain system."> '''inlet structure'''</span> | ||
| − | *<span title=" | + | *<span title="Curbs fused together with the road to create more traction and make it easier for larger vehicles to pass without damaging the internal structure or foundation of the asphalt or concrete. This type of curb creates a much smoother transition into the road than other types because there aren’t any jutting edges."> '''integral curb'''</span> |
| − | *<span title=" | + | *<span title="An intensive green roof has growing medium that is 6 inches or more deep"> '''intensive roof'''</span> |
| − | *<span title=" | + | *<span title="A well-defined channel that contains. water for only part of the year, typically during winter and spring when the aquatic."> '''intermittent flow channel'''</span> |
| − | *<span title=" | + | *<span title="Invert level is the base interior level of a pipe, trench or tunnel; it can be considered the "floor" level"> '''invert'''</span> |
*<span title="Iron-enhanced sand filters are filtration Best Management Practices (BMPs) that incorporate filtration media mixed with iron. The iron removes several dissolved constituents, including phosphate, from stormwater. Iron-enhanced sand filters may be particularly useful for achieving low phosphorus levels needed to improve nutrient impaired waters. "> [https://stormwater.pca.state.mn.us/index.php?title=Iron_enhanced_sand_filter_(Minnesota_Filter) '''iron-enhanced sand filter''']</span> | *<span title="Iron-enhanced sand filters are filtration Best Management Practices (BMPs) that incorporate filtration media mixed with iron. The iron removes several dissolved constituents, including phosphate, from stormwater. Iron-enhanced sand filters may be particularly useful for achieving low phosphorus levels needed to improve nutrient impaired waters. "> [https://stormwater.pca.state.mn.us/index.php?title=Iron_enhanced_sand_filter_(Minnesota_Filter) '''iron-enhanced sand filter''']</span> | ||
| Line 187: | Line 187: | ||
==L== | ==L== | ||
| − | *<span title=" | + | *<span title="Residential housing in a rural setting that preserves and minimizes impacts on environmentally sensitive locations and provides scenic quality."> '''large lot residential'''</span> |
| − | *<span title=" | + | *<span title="A soluble chemical drained away from soil, ash, or similar material by the action of percolating liquid, especially rainwater"> '''leaching'''</span> |
*<span title="Level Spreaders are measures that reduce the erosive energy of concentrated flows by distributing runoff as sheet flow to stabilized vegetative surfaces."> '''level spreader'''</span> | *<span title="Level Spreaders are measures that reduce the erosive energy of concentrated flows by distributing runoff as sheet flow to stabilized vegetative surfaces."> '''level spreader'''</span> | ||
| − | *<span title=" | + | *<span title="A complex organic polymer deposited in the cell walls of many plants, making them rigid and woody"> '''lignin'''</span> |
| − | *<span title=" | + | *<span title="Water held temporarily, typically in a constructed pond, above the permanent (dead storage) pool"> '''live storage'''</span> |
| − | *<span title=" | + | *<span title="A soil with roughly equal proportions of clay, silt, and sand"> '''loam'''</span> |
| − | *<span title=" | + | *<span title="The slope spanning the length of a body"> '''longitudinal slope'''</span> |
| − | *<span title=" | + | *<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=" | + | *<span title="A small covered opening in a floor, pavement, or other surface to allow a person to enter, especially an opening in a city street leading to a sewer."> '''manhole'''</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> | *<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=" | + | *<span title="Characterized by, relating to, or requiring a moderate amount of moisture a mesic habitat"> '''mesic'''</span> |
| − | *<span title=" | + | *<span title="The middle layer of the pericarp of a fruit, between the endocarp and the exocarp"> '''mesocarp'''</span> |
| − | *<span title=" | + | *<span title="A tool to simulate natural processes and estimate the expected volume, rate, or quality of stormwater"> [https://stormwater.pca.state.mn.us/index.php?title=Introduction_to_stormwater_modeling '''model''']</span> |
*moderate to steep slopes | *moderate to steep slopes | ||
*<span title="The localized temporary rise in the groundwater surface below an area of infiltration"> '''[https://stormwater.pca.state.mn.us/index.php?title=Stormwater_infiltration_and_groundwater_mounding mounding]'''</span> | *<span title="The localized temporary rise in the groundwater surface below an area of infiltration"> '''[https://stormwater.pca.state.mn.us/index.php?title=Stormwater_infiltration_and_groundwater_mounding mounding]'''</span> | ||
| Line 209: | Line 209: | ||
==N== | ==N== | ||
*<span title="The National Pollutant Discharge Elimination System (NPDES) addresses water pollution by regulating point sources that discharge pollutants to Waters of the United States (WOTUS)"> '''NPDES'''</span> | *<span title="The National Pollutant Discharge Elimination System (NPDES) addresses water pollution by regulating point sources that discharge pollutants to Waters of the United States (WOTUS)"> '''NPDES'''</span> | ||
| − | *<span title=" | + | *<span title="A potent greenhouse gas emitted during agricultural and industrial activities, combustion of fossil fuels and solid waste, as well as during treatment of wastewater"> '''nitrous oxide'''</span> |
*<span title="Stormwater practices that are not permanent, physical devices or structures but that reduce pollutant loading. Examples include street sweeping, pollution prevention, education, impervious surface disconnection, and illicit discharge disconnection."> '''non-structural practice'''</span> | *<span title="Stormwater practices that are not permanent, physical devices or structures but that reduce pollutant loading. Examples include street sweeping, pollution prevention, education, impervious surface disconnection, and illicit discharge disconnection."> '''non-structural practice'''</span> | ||
*<span title=""Notice of Termination (NOT)" means the form (electronic or paper) required for terminating coverage under the Construction General permit. [Minn. R. 7090]"> [https://stormwater.pca.state.mn.us/index.php?title=MN_CSW_Permit_Section_4_Termination_of_Coverage '''Notice of Termination''']</span> | *<span title=""Notice of Termination (NOT)" means the form (electronic or paper) required for terminating coverage under the Construction General permit. [Minn. R. 7090]"> [https://stormwater.pca.state.mn.us/index.php?title=MN_CSW_Permit_Section_4_Termination_of_Coverage '''Notice of Termination''']</span> | ||
| Line 215: | Line 215: | ||
==O== | ==O== | ||
*<span title="Ordinary high water level means the boundary of waterbasins, watercourses, public waters, and public waters wetlands, and the ordinary high water level is an elevation delineating the highest water level that has been maintained for a sufficient period of time to leave evidence upon the landscape, commonly the point where the natural vegetation changes from predominantly aquatic to predominantly terrestrial; for watercourses, the ordinary high water level is the elevation of the top of the bank of the channel; and for reservoirs and flowages, the ordinary high water level is the operating elevation of the normal summer pool."> [https://www.dnr.state.mn.us/waters/surfacewater_section/hydrographics/ohw.html '''ordinary high water level''']</span> | *<span title="Ordinary high water level means the boundary of waterbasins, watercourses, public waters, and public waters wetlands, and the ordinary high water level is an elevation delineating the highest water level that has been maintained for a sufficient period of time to leave evidence upon the landscape, commonly the point where the natural vegetation changes from predominantly aquatic to predominantly terrestrial; for watercourses, the ordinary high water level is the elevation of the top of the bank of the channel; and for reservoirs and flowages, the ordinary high water level is the operating elevation of the normal summer pool."> [https://www.dnr.state.mn.us/waters/surfacewater_section/hydrographics/ohw.html '''ordinary high water level''']</span> | ||
| − | *<span title=" | + | *<span title="Carbon-based compounds, originally derived from living organisms"> '''organic material'''</span> |
*<span title="An outfall is defined as any point where a separate storm sewer system discharges to either Water of the United States or to another MS4. Outfalls include discharges from pipes, ditches swales, and other points of concentrated flow"> '''outfall'''</span> | *<span title="An outfall is defined as any point where a separate storm sewer system discharges to either Water of the United States or to another MS4. Outfalls include discharges from pipes, ditches swales, and other points of concentrated flow"> '''outfall'''</span> | ||
| − | *<span title=" | + | *<span title="The movement of water over the land, downslope toward a surface water body."> '''overland flow'''</span> |
| − | *<span title=" | + | *<span title="A type of chemical reaction that involves a transfer of electrons between two species. An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron"> '''oxidation-reduction reaction'''</span> |
==P== | ==P== | ||
*<span title="Program for Predicting Polluting Particle Passage through Pits, Puddles & Ponds, is a physically-based stormwater quality model developed by William Walker to predict the generation and transport of stormwater runoff pollutants in urban watershed"> [https://stormwater.pca.state.mn.us/index.php?title=Available_stormwater_models_and_selecting_a_model#P8 '''P8''']</span> | *<span title="Program for Predicting Polluting Particle Passage through Pits, Puddles & Ponds, is a physically-based stormwater quality model developed by William Walker to predict the generation and transport of stormwater runoff pollutants in urban watershed"> [https://stormwater.pca.state.mn.us/index.php?title=Available_stormwater_models_and_selecting_a_model#P8 '''P8''']</span> | ||
| − | *<span title=" | + | *<span title="An index (means of expression) indicating what sizes (particle size) of particles are present in what proportions (relative particle amount as a percentage where the total amount of particles is 100 %) in the sample particle group to be measured"> '''particle size distribution'''</span> |
| − | *<span title=" | + | *<span title="A microbe or microorganism such as a virus, bacterium, prion, or fungus that causes disease in humans."> '''pathogen'''</span> |
*<span title="A perennial plant or simply perennial is a plant that lives more than two years"> '''perennial'''</span> | *<span title="A perennial plant or simply perennial is a plant that lives more than two years"> '''perennial'''</span> | ||
*<span title="A perennial stream or perennial river is a stream or river (channel) that has continuous flow in parts of its stream bed all year round during years of normal rainfall"> '''perennial stream'''</span> | *<span title="A perennial stream or perennial river is a stream or river (channel) that has continuous flow in parts of its stream bed all year round during years of normal rainfall"> '''perennial stream'''</span> | ||
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*<span title="Temporary structural stormwater BMPs that surround and contain a site of exposed soil to prevent sediments from leaving the site."> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Perimeter_controls_for_disturbed_areas '''perimeter control''']</span> | *<span title="Temporary structural stormwater BMPs that surround and contain a site of exposed soil to prevent sediments from leaving the site."> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Perimeter_controls_for_disturbed_areas '''perimeter control''']</span> | ||
*permanent cover | *permanent cover | ||
| − | *<span title=" | + | *<span title="Stormwater management practice that will be operational after the land disturbing activities are completed"> '''permanent stormwater management'''</span> |
*<span title="Permeable pavements allow stormwater runoff to filter through surface voids into an underlying stone reservoir for temporary storage and/or infiltration. The most commonly used permeable pavement surfaces are pervious concrete, porous asphalt, and permeable interlocking concrete pavers (PICP)."> '''[https://stormwater.pca.state.mn.us/index.php?title=Permeable_pavement permeable pavement]'''</span> | *<span title="Permeable pavements allow stormwater runoff to filter through surface voids into an underlying stone reservoir for temporary storage and/or infiltration. The most commonly used permeable pavement surfaces are pervious concrete, porous asphalt, and permeable interlocking concrete pavers (PICP)."> '''[https://stormwater.pca.state.mn.us/index.php?title=Permeable_pavement permeable pavement]'''</span> | ||
*<span title="a subsurface emplacement of reactive materials through which a dissolved contaminant plume must move as it flows. Treated water exits the other side of the permeable barrier. This method may utilize bilogical or chemical methods for pollutant removal."> '''permeable reactive barrier'''</span> | *<span title="a subsurface emplacement of reactive materials through which a dissolved contaminant plume must move as it flows. Treated water exits the other side of the permeable barrier. This method may utilize bilogical or chemical methods for pollutant removal."> '''permeable reactive barrier'''</span> | ||
*<span title="The Phase I program for MS4s requires operators of “medium” and “large” MS4s, that is, those that generally serve populations of 100,000 or greater, to implement a stormwater management program as a means to control polluted discharges from these MS4s"> '''Phase 1'''</span> | *<span title="The Phase I program for MS4s requires operators of “medium” and “large” MS4s, that is, those that generally serve populations of 100,000 or greater, to implement a stormwater management program as a means to control polluted discharges from these MS4s"> '''Phase 1'''</span> | ||
*<span title="The Stormwater Phase II Rule extends coverage of the NPDES stormwater program to certain “small” MS4s but takes a slightly different approach to how the stormwater management program is developed and implemented."> '''Phase 2'''</span> | *<span title="The Stormwater Phase II Rule extends coverage of the NPDES stormwater program to certain “small” MS4s but takes a slightly different approach to how the stormwater management program is developed and implemented."> '''Phase 2'''</span> | ||
| − | *<span title=" | + | *<span title="Models based on an understanding of the physics of the hydrological processes"> '''physically-based model'''</span> |
| − | *<span title=" | + | *<span title="Heavy stakes or posts installed to support the foundations of a superstructure"> '''pilings'''</span> |
*<span title="In plug flow, the velocity of the fluid is assumed to be constant across any cross-sectional area perpendicular to the direction of flow."> '''plug flow'''.</span> | *<span title="In plug flow, the velocity of the fluid is assumed to be constant across any cross-sectional area perpendicular to the direction of flow."> '''plug flow'''.</span> | ||
| − | *<span title=" | + | *<span title="Small-sized seedlings grown in trays from expanded polystyrene or polythene filled usually with a peat or compost substrate."> '''plugs'''</span> |
*point of discharge | *point of discharge | ||
| − | *<span title=" | + | *<span title="Any practice that reduces, eliminates, or prevents pollution at its source"> '''pollution prevention'''</span> |
| − | *<span title=" | + | *<span title="A class of chemicals that occur naturally in coal, crude oil, and gasoline. They also are produced when coal, oil, gas, wood, garbage, and tobacco are burned."> '''polycyclic aromatic hydrocarbons'''</span> |
*<span title="Polymers are large molecules, or macromolecules, composed of many repeated subunits. For water treatment, they are used as coagulants and may be cationic, anionic, or neutral, depending on the desired treatment."> '''polymer'''</span> | *<span title="Polymers are large molecules, or macromolecules, composed of many repeated subunits. For water treatment, they are used as coagulants and may be cationic, anionic, or neutral, depending on the desired treatment."> '''polymer'''</span> | ||
*<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="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=" | + | *<span title="The rigid concrete layer of the pavement structure that is in direct contact with the traffic."> [https://stormwater.pca.state.mn.us/index.php?title=Types_of_permeable_pavement '''Portland cement concrete'''] </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="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=" | + | *<span title="The process of planning and applying fire to a predetermined area, under specific environmental conditions, to achieve a desired outcome"> '''Prescribed burning'''</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> | ||
*<span title="Pre-wetting of salt is a process of coating, or treating, the dry material with a liquid."> '''pre-wetting'''</span> | *<span title="Pre-wetting of salt is a process of coating, or treating, the dry material with a liquid."> '''pre-wetting'''</span> | ||
| − | *<span title=" | + | *<span title="A pre-fabricated stormwater treatment structure utilizing settling, filtration, absorptive/adsorptive materials, vortex separation, vegetative components, and/or other appropriate technology to remove pollutants from storm runoff."> '''proprietary structures'''</span> |
*<span title="A constructed conveyance designed to drain land and to collect water quickly and efficiently"> '''public ditch'''</span> | *<span title="A constructed conveyance designed to drain land and to collect water quickly and efficiently"> '''public ditch'''</span> | ||
*<span title="Public waters means public waters that are on the public waters inventory as provided in section 103G.201"> [https://www.revisor.mn.gov/statutes/cite/103G.201 '''public water''']</span> | *<span title="Public waters means public waters that are on the public waters inventory as provided in section 103G.201"> [https://www.revisor.mn.gov/statutes/cite/103G.201 '''public water''']</span> | ||
| Line 260: | Line 260: | ||
*<span title="The Rational Method is a simple hydrologic calculation of peak flow based on drainage area, rainfall intensity, and a non-dimensional runoff coefficient. The peak flow is calculated as the rainfall intensity in inches per hour multiplied by the runoff coefficient and the drainage area in acres. The peak flow, Q, is calculated in cubic feet per second (cfs) as Q = CiA where C is the runoff coefficient, i is the rainfall intensity, and A is the drainage area. A conversion factor of 1.008 is necessary to convert acre-inches per hour to cfs, but this is typically not used. This method is best used only for simple approximations of peak flow from small watersheds."> [https://stormwater.pca.state.mn.us/index.php?title=The_Simple_Method_for_estimating_phosphorus_export '''Rational Method''']</span> | *<span title="The Rational Method is a simple hydrologic calculation of peak flow based on drainage area, rainfall intensity, and a non-dimensional runoff coefficient. The peak flow is calculated as the rainfall intensity in inches per hour multiplied by the runoff coefficient and the drainage area in acres. The peak flow, Q, is calculated in cubic feet per second (cfs) as Q = CiA where C is the runoff coefficient, i is the rainfall intensity, and A is the drainage area. A conversion factor of 1.008 is necessary to convert acre-inches per hour to cfs, but this is typically not used. This method is best used only for simple approximations of peak flow from small watersheds."> [https://stormwater.pca.state.mn.us/index.php?title=The_Simple_Method_for_estimating_phosphorus_export '''Rational Method''']</span> | ||
*<span title="A stream, river, lake, ocean, or other surface or groundwaters into which treated or untreated wastewater is discharged"> '''receiving water'''</span> | *<span title="A stream, river, lake, ocean, or other surface or groundwaters into which treated or untreated wastewater is discharged"> '''receiving water'''</span> | ||
| − | *<span title=" | + | *<span title="Use of more than one BMP to provide additional treatment or protection"> '''redundant'''</span> |
*<span title="Pollutant removal efficiency, usually represented by a percentage, specifically refers to the pollutant reduction from the inflow to the outflow of a system"> '''removal efficiency'''</span> | *<span title="Pollutant removal efficiency, usually represented by a percentage, specifically refers to the pollutant reduction from the inflow to the outflow of a system"> '''removal efficiency'''</span> | ||
| − | *<span title=" | + | *<span title="A renewed suspension of insoluble particles after they have been precipitated"> '''resuspension'''</span> |
*<span title="A riparian zone or riparian area is the interface between land and a river or stream. Plant habitats and communities along the river margins and banks are called riparian vegetation, characterized by hydrophilic plants."> '''riparian zone'''</span> | *<span title="A riparian zone or riparian area is the interface between land and a river or stream. Plant habitats and communities along the river margins and banks are called riparian vegetation, characterized by hydrophilic plants."> '''riparian zone'''</span> | ||
*<span title="Loose stone used to form a foundation for a breakwater to reduce potential for soil erosion."> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_Riprap '''riprap''']</span> | *<span title="Loose stone used to form a foundation for a breakwater to reduce potential for soil erosion."> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_Riprap '''riprap''']</span> | ||
| Line 271: | Line 271: | ||
==Sa-Sn== | ==Sa-Sn== | ||
| − | *<span title=" | + | *<span title="Filtration of stormwater through a sand filtering material whose purpose is to remove pollution from runoff"> '''[https://stormwater.pca.state.mn.us/index.php?title=Filtration sand filter]'''</span> |
| − | *<span title=" | + | *<span title="An underground pipe or tunnel system for transporting sewage from houses and commercial buildings (but not stormwater) to treatment facilities or disposal."> '''sanitary sewer'''</span> |
*<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> | *<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> | ||
| − | *<span title=" | + | *<span title="Forceful removal of soil or other material by flowing water"> '''scouring'''</span> |
*<span title="Pretreatment screens are small catch basins or conveyance trenches in which screening is the primary mechanism of pollutant removal. These pretreatment devices use a perforated plate or mesh screen to separate and collect sediment, trash, debris and organic material as runoff passes over or through them."> '''screen'''</span> (for pretreatment) | *<span title="Pretreatment screens are small catch basins or conveyance trenches in which screening is the primary mechanism of pollutant removal. These pretreatment devices use a perforated plate or mesh screen to separate and collect sediment, trash, debris and organic material as runoff passes over or through them."> '''screen'''</span> (for pretreatment) | ||
| − | *<span title=" | + | *<span title="An opaque disk, typically white, used to gauge the transparency of water by measuring the depth ( Secchi depth ) at which the disk ceases to be visible from the surface."> '''Secchi disk'''</span> |
*<span title="A sediment basin is a temporary pond built on a construction site to capture eroded or disturbed soil that is washed off during rain storms, and protect the water quality of a nearby stream, river, lake, or bay. The sediment-laden soil settles in the pond before the runoff is discharged."> '''sediment basin'''</span> | *<span title="A sediment basin is a temporary pond built on a construction site to capture eroded or disturbed soil that is washed off during rain storms, and protect the water quality of a nearby stream, river, lake, or bay. The sediment-laden soil settles in the pond before the runoff is discharged."> '''sediment basin'''</span> | ||
*<span title="Sediment traps and basins are settling ponds formed by excavation and/or an embankment"> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Sediment_traps_and_basins '''sediment trap''']</span> | *<span title="Sediment traps and basins are settling ponds formed by excavation and/or an embankment"> [https://stormwater.pca.state.mn.us/index.php?title=Sediment_control_practices_-_Sediment_traps_and_basins '''sediment trap''']</span> | ||
| Line 287: | Line 287: | ||
*<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> | ||
| − | *<span title=" | + | *<span title="Water, usually storm runoff, flowing in a thin layer over the ground surface. A synonym is overland flow."> '''sheet flow'''</span> |
*<span title="Sheet piles are sections of sheet materials with interlocking edges that are driven into the ground to provide earth retention and excavation"> '''sheet pile'''</span> | *<span title="Sheet piles are sections of sheet materials with interlocking edges that are driven into the ground to provide earth retention and excavation"> '''sheet pile'''</span> | ||
*<span title="A condition that occurs when water flows along a nearly direct pathway from the inlet to the outlet of a tank or basin, often resulting in shorter contact, reaction, or settling times in comparison with the calculated or presumed detention times."> '''short-circuiting'''</span> | *<span title="A condition that occurs when water flows along a nearly direct pathway from the inlet to the outlet of a tank or basin, often resulting in shorter contact, reaction, or settling times in comparison with the calculated or presumed detention times."> '''short-circuiting'''</span> | ||
*side slope | *side slope | ||
| − | *<span title=" | + | *<span title="Fine-grained soil particles with a diameter between 0.002 mm and 0.06 mm."> '''silt'''</span> |
*<span title="Turbidity curtains, silt curtains, silt screens, silt barriers, or turbidity barriers, as they are sometimes called, are floating barriers used in marine construction, dredging, and remediation projects to control the silt and sediment in a body of water."> '''silt curtain'''</span> | *<span title="Turbidity curtains, silt curtains, silt screens, silt barriers, or turbidity barriers, as they are sometimes called, are floating barriers used in marine construction, dredging, and remediation projects to control the silt and sediment in a body of water."> '''silt curtain'''</span> | ||
*<span title="A temporary sediment control device used on construction sites to protect water quality in nearby streams, rivers, lakes and seas from sediment (loose soil) in stormwater runoff."> '''silt fence'''</span> | *<span title="A temporary sediment control device used on construction sites to protect water quality in nearby streams, rivers, lakes and seas from sediment (loose soil) in stormwater runoff."> '''silt fence'''</span> | ||
| − | *<span title=" | + | *<span title="A cavity in the ground, especially in limestone bedrock, caused by water erosion and providing a route for surface water to disappear underground."> '''sinkhole'''</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="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="Sizing refers to the physical dimensions of a stormwater treatment practice or device needed to meet a water quality or quantity goal. For example, stormwater BMPs may be sized to treat a volume of runoff, a flow rate, or to meet a pollutant removal target."> '''sizing'''</span> | *<span title="Sizing refers to the physical dimensions of a stormwater treatment practice or device needed to meet a water quality or quantity goal. For example, stormwater BMPs may be sized to treat a volume of runoff, a flow rate, or to meet a pollutant removal target."> '''sizing'''</span> | ||
| Line 301: | Line 301: | ||
==So-Sz== | ==So-Sz== | ||
*<span title="Soil aggregates are groups of soil particles that bind to each other more strongly than to adjacent particles. The space between the aggregates provide pore space for retention and exchange of air and water."> '''soil aggregation'''</span> | *<span title="Soil aggregates are groups of soil particles that bind to each other more strongly than to adjacent particles. The space between the aggregates provide pore space for retention and exchange of air and water."> '''soil aggregation'''</span> | ||
| − | *<span title=" | + | *<span title="The compression of soil particles into a smaller volume, which reduces the size of pore space available for air and water."> '''soil compaction'''</span> |
| − | *<span title=" | + | *<span title="The wearing away of a field's topsoil by the natural physical forces of water and wind"> '''soil erosion'''</span> |
| − | *<span title=" | + | *<span title="The total amount of water a soil can hold at field capacity."> '''soil moisture holding capacity (gravity drained water)'''</span> |
| − | *<span title=" | + | *<span title="The organic matter component of soil, consisting of plant and animal residues at various stages of decomposition, cells and tissues of soil organisms, and substances synthesized by soil organisms"> '''soil organic matter'''</span> |
| − | *<span title=" | + | *<span title="Soil quality is the capacity of a specific kind of soil to function, within natural or managed ecosystem boundaries, to sustain plant and animal productivity, maintain or enhance water and air quality, and support human health and habitation."> '''soil quality'''</span> |
| − | *<span title=" | + | *<span title="Temporary and permanent covers to stabilize soils and prevent erosion"> [https://stormwater.pca.state.mn.us/index.php?title=Construction_stormwater_best_management_practice_%E2%80%93_Site_stabilization '''soil stabilization''']</span> |
*<span title="Soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them. It is determined by how individual soil granules clump, bind together, and aggregate, resulting in the arrangement of soil pores between them."> '''soil structure'''</span> | *<span title="Soil structure describes the arrangement of the solid parts of the soil and of the pore space located between them. It is determined by how individual soil granules clump, bind together, and aggregate, resulting in the arrangement of soil pores between them."> '''soil structure'''</span> | ||
*<span title="Soil texture (such as loam, sandy loam or clay) refers to the proportion of sand, silt and clay sized particles that make up the mineral fraction of the soil."> '''soil texture'''</span> | *<span title="Soil texture (such as loam, sandy loam or clay) refers to the proportion of sand, silt and clay sized particles that make up the mineral fraction of the soil."> '''soil texture'''</span> | ||
*<span title="A soil type is a taxonomic unit in soil science. All soils that share a certain set of well-defined properties form a distinctive soil type."> '''soil type'''</span> | *<span title="A soil type is a taxonomic unit in soil science. All soils that share a certain set of well-defined properties form a distinctive soil type."> '''soil type'''</span> | ||
| − | *<span title=" | + | *<span title="Able to be dissolved, especially in water"> '''soluble'''</span> |
*<span title="an instrument probe that automatically transmits information about its surroundings underground, under water, in the atmosphere, etc."> '''sonde'''</span> | *<span title="an instrument probe that automatically transmits information about its surroundings underground, under water, in the atmosphere, etc."> '''sonde'''</span> | ||
| − | *<span title=" | + | *<span title="Absorption and adsorption considered as a single process"> '''sorption'''</span> |
| − | *<span title=" | + | *<span title="Waters with qualities that warrant extra protection"> [https://stormwater.pca.state.mn.us/index.php?title=Special_Waters_and_Impaired_Waters '''special water''']</span> |
| − | *<span title=" | + | *<span title="The ratio of the density of a substance to the density of a standard, usually water for a liquid or solid, and air for a gas"> '''specific gravity'''</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> | *<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> | ||
*spillway | *spillway | ||
| − | *<span title=" | + | *<span title="A set of step-by-step instructions to help workers carry out complex routine operations. SOPs aim to achieve efficiency, quality output and uniformity of performance, while reducing miscommunication and failure to comply with industry regulations."> '''standard operating procedure'''</span> |
| − | *<span title=" | + | *<span title="The definition of a steep slope is somewhat arbitrary and depends on the context and other site characteristics, such as soil type and vegetative cover. Slopes greater than 12 percent are considered highly erodible, while slopes greater than 18% are often considered severe"> '''steep slopes'''</span> |
*<span title="A stockpile is a pile or storage location for bulk materials, forming part of the bulk material handling process."> '''stockpile'''</span> | *<span title="A stockpile is a pile or storage location for bulk materials, forming part of the bulk material handling process."> '''stockpile'''</span> | ||
| − | *<span title=" | + | *<span title="The force required to move a sphere through a given viscous fluid at a low uniform velocity is directly proportional to the velocity and radius of the sphere."> '''Stoke's Law'''</span> |
*<span title="A stormwater conveyance channel is a permanent waterway, designed to convey stormwater runoff."> '''stormwater conveyance channel'''</span> | *<span title="A stormwater conveyance channel is a permanent waterway, designed to convey stormwater runoff."> '''stormwater conveyance channel'''</span> | ||
*<span title="Stormwater Hotspots (PSHs) are activities or practices that have the potential to produce relatively high levels of stormwater pollutants"> '''[https://stormwater.pca.state.mn.us/index.php?title=Potential_stormwater_hotspots stormwater hotspot]'''</span> | *<span title="Stormwater Hotspots (PSHs) are activities or practices that have the potential to produce relatively high levels of stormwater pollutants"> '''[https://stormwater.pca.state.mn.us/index.php?title=Potential_stormwater_hotspots stormwater hotspot]'''</span> | ||
*<span title="Stormwater wetlands are similar in design to stormwater ponds and mainly differ by their variety of water depths and associated vegetative complex."> '''[https://stormwater.pca.state.mn.us/index.php?title=Stormwater_wetlands stormwater wetland]'''</span> | *<span title="Stormwater wetlands are similar in design to stormwater ponds and mainly differ by their variety of water depths and associated vegetative complex."> '''[https://stormwater.pca.state.mn.us/index.php?title=Stormwater_wetlands stormwater wetland]'''</span> | ||
| − | *<span title=" | + | *<span title="A stationary and permanent BMP that is designed, constructed and operated to prevent or reduce the discharge of pollutants in stormwater"> '''structural stormwater BMP'''</span> |
| − | *<span title=" | + | *<span title="A system that treats wastewater for one specific residence. Wastewater includes all bathroom, kitchen, and laundry water."> '''subsurface sewage treatment system (SSTS)'''</span> |
| − | *<span title=" | + | *<span title="A pit or hollow in which liquid collects"> '''sump'''</span> |
*<span title="A catch basin with a sump that allows solids, trash and debris to settle out to the bottom of the basin, below an outlet pipe that allows water to flow out of the structure"> '''sump manhole'''</span> | *<span title="A catch basin with a sump that allows solids, trash and debris to settle out to the bottom of the basin, below an outlet pipe that allows water to flow out of the structure"> '''sump manhole'''</span> | ||
*<span title="Surface roughness often shortened to roughness, is a component of surface texture. It is quantified by the deviations in the direction of the normal vector of a real surface from its ideal form. If these deviations are large, the surface is rough; if they are small, the surface is smooth."> '''surface roughness'''</span> | *<span title="Surface roughness often shortened to roughness, is a component of surface texture. It is quantified by the deviations in the direction of the normal vector of a real surface from its ideal form. If these deviations are large, the surface is rough; if they are small, the surface is smooth."> '''surface roughness'''</span> | ||
| − | *<span title=" | + | *<span title="Small solid particles which remain in suspension in water as a colloid or due to the motion of the water,suspended solids can be removed by the sedimentation because of their comparatively large size."> '''suspended solids'''</span> |
| − | *<span title=" | + | *<span title="Are configured as shallow, linear channels. They typically have vegetative cover such as turf or native perennial grasses"> [https://stormwater.pca.state.mn.us/index.php?title=Dry_swale_(Grass_swale) '''swale''']</span> |
*<span title="Stormwater pollution prevention plan."> '''SWPPP'''</span> | *<span title="Stormwater pollution prevention plan."> '''SWPPP'''</span> | ||
| Line 336: | Line 336: | ||
*<span title="Tackifiers and soil stabilizers are hydraulically applied chemicals derived from natural and synthetic sources used to promote adhesion among soil particles or mulch materials"> '''[https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_tackifiers_and_soil_stabilizers tackifier]'''</span> | *<span title="Tackifiers and soil stabilizers are hydraulically applied chemicals derived from natural and synthetic sources used to promote adhesion among soil particles or mulch materials"> '''[https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_tackifiers_and_soil_stabilizers tackifier]'''</span> | ||
*<span title="https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_temporary_seeding_and_stabilization"> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_temporary_seeding_and_stabilization '''temporary seeding''']</span> | *<span title="https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_temporary_seeding_and_stabilization"> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_temporary_seeding_and_stabilization '''temporary seeding''']</span> | ||
| − | *<span title=" | + | *<span title="The time needed for water to flow from the most remote point in a watershed to the watershed outlet. It is a function of the topography, geology, and land use within the watershed."> '''time of concentration'''</span> |
| − | *<span title=" | + | *<span title="The amount of a pollutant from both point and nonpoint sources that a waterbody can receive and still meet water quality standards"> [https://stormwater.pca.state.mn.us/index.php?title=Total_Maximum_Daily_Loads_(TMDLs) '''total maximum daily load''']</span> |
*<span title="The sum of all forms of phosphorus (particulate and dissolved)"> '''total phosphorus'''</span> | *<span title="The sum of all forms of phosphorus (particulate and dissolved)"> '''total phosphorus'''</span> | ||
| − | *<span title=" | + | *<span title="A quadrilateral with only one pair of parallel sides"> '''trapezoid'''</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="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=" | + | *<span title="A practice, device or structure designed to treat stormwater runoff (i.e. remove pollutants from stormwater). These include structural practices such as rain gardens, and non-strutural practices such as street sweeping."> '''treatment practice'''</span> |
| − | *<span title=" | + | *<span title="Multiple BMPs that work together to remove pollutants utilizing combinations of hydraulic, physical, biological, and chemical methods"> [https://stormwater.pca.state.mn.us/index.php?title=Using_the_treatment_train_approach_to_BMP_selection '''treatment train''']</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=" | + | *<span title="A dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water. It is used in the drag equation in which a lower drag coefficient indicates the object will have less aerodynamic or hydrodynamic drag. The drag coefficient is always associated with a particular surface area."> '''turbulent drag'''</span> |
*<span title="Turf reinforcement mats (TRMs) are synthetic, non-degradable soil and seedbed covers of variable thickness designed to provide short-term protection against raindrop and wind erosion, permanent support for vegetation on slopes, and permanent armoring and vegetation support for ditches, swales, and channels."> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_turf_reinforcement_mats '''turf reinforcement mat''']</span> | *<span title="Turf reinforcement mats (TRMs) are synthetic, non-degradable soil and seedbed covers of variable thickness designed to provide short-term protection against raindrop and wind erosion, permanent support for vegetation on slopes, and permanent armoring and vegetation support for ditches, swales, and channels."> [https://stormwater.pca.state.mn.us/index.php?title=Erosion_prevention_practices_-_turf_reinforcement_mats '''turf reinforcement mat''']</span> | ||
*<span title="Two-stage channel systems consist of an inset channel and small floodplain (benches) within the ditch confines. "> '''two-stage channel'''</span> | *<span title="Two-stage channel systems consist of an inset channel and small floodplain (benches) within the ditch confines. "> '''two-stage channel'''</span> | ||
| Line 352: | Line 352: | ||
*<span title="Highly urban and ultra-urban settings have a large percentage of impermeable surface and typically have limited space to install surface BMPs. An example would be a downtown area."> '''highly urban and ultra-urban environments'''</span> | *<span title="Highly urban and ultra-urban settings have a large percentage of impermeable surface and typically have limited space to install surface BMPs. An example would be a downtown area."> '''highly urban and ultra-urban environments'''</span> | ||
*<span title="An underground drain or trench with openings through which the water may percolate from the soil or ground above"> '''underdrain'''</span> | *<span title="An underground drain or trench with openings through which the water may percolate from the soil or ground above"> '''underdrain'''</span> | ||
| − | *<span title=" | + | *<span title="Movement of water beneath a structure, which can lead to erosion and undercutting of the structure"> '''under-draining'''</span> |
| − | *<span title=" | + | *<span title="A BMP that does not treat the full water quality volume"> '''undersized BMP'''</span> |
==V== | ==V== | ||
| − | *<span title=" | + | *<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="Pretreatment vegetated filter strips are designed to provide sedimentation and screening (by vegetation) to treat stormwater runoff prior to entering a structural stormwater BMP. Pretreatment vegetated filter strips are especially effective at capturing excess sediment in stormwater runoff by settling solids. Pretreatment vegetated filter strips provide limited (due to size) volume reduction, peak flow reduction, infiltration, and biological treatment. Stormwater management processes not provided in pretreatment vegetated filter strips include filtration and sorption."> [https://stormwater.pca.state.mn.us/index.php?title=Overview_for_pretreatment_vegetated_filter_strips '''Vegetated filter strip''']</span> | *<span title="Pretreatment vegetated filter strips are designed to provide sedimentation and screening (by vegetation) to treat stormwater runoff prior to entering a structural stormwater BMP. Pretreatment vegetated filter strips are especially effective at capturing excess sediment in stormwater runoff by settling solids. Pretreatment vegetated filter strips provide limited (due to size) volume reduction, peak flow reduction, infiltration, and biological treatment. Stormwater management processes not provided in pretreatment vegetated filter strips include filtration and sorption."> [https://stormwater.pca.state.mn.us/index.php?title=Overview_for_pretreatment_vegetated_filter_strips '''Vegetated filter strip''']</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."> '''[https://stormwater.pca.state.mn.us/index.php?title=Dry_swale_(Grass_swale) 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."> '''[https://stormwater.pca.state.mn.us/index.php?title=Dry_swale_(Grass_swale) vegetated swale]'''</span> | ||
| Line 362: | Line 362: | ||
==W== | ==W== | ||
| − | *<span title=" | + | *<span title="Removal of sediment and pollutants by runoff on impermeable surfaces"> '''wash-off'''</span> |
*<span title"the removal or erosion of material captured by a stormwater device, typically a result of subsequent high flow volumes or rates or inadequate maintenance of the device"> '''washout'''</span> | *<span title"the removal or erosion of material captured by a stormwater device, typically a result of subsequent high flow volumes or rates or inadequate maintenance of the device"> '''washout'''</span> | ||
| − | *<span title=" | + | *<span title="The portion of a receiving water's assimilative capacity that is allocated to one of its existing or future point sources of pollution"> '''wasteload allocation'''</span> |
| − | *<span title=" | + | *<span title="The ability of a certain soil texture to physically hold water against the force of gravity"> '''water holding capacity'''</span> |
*<span title="Water quality standards (WQS) are provisions of state, territorial, authorized tribal or federal law approved by EPA that describe the desired condition of a water body and the means by which that condition will be protected or achieved."> '''water quality standard'''</span> | *<span title="Water quality standards (WQS) are provisions of state, territorial, authorized tribal or federal law approved by EPA that describe the desired condition of a water body and the means by which that condition will be protected or achieved."> '''water quality standard'''</span> | ||
*<span title="The volume of water that is treated by a BMP."> [https://stormwater.pca.state.mn.us/index.php?title=Water_quality_criteria '''Water Quality Volume''']</span> | *<span title="The volume of water that is treated by a BMP."> [https://stormwater.pca.state.mn.us/index.php?title=Water_quality_criteria '''Water Quality Volume''']</span> | ||
*<span title="The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with water. ... Below the water table, in the phreatic zone (zone of saturation), layers of permeable rock that yield groundwater are called aquifers."> '''A water table aquifer'''</span> | *<span title="The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with water. ... Below the water table, in the phreatic zone (zone of saturation), layers of permeable rock that yield groundwater are called aquifers."> '''A water table aquifer'''</span> | ||
| − | *<span title=" | + | *<span title="A process, including a report, to identify and address threats to water quality in major watershed"> '''[https://www.pca.state.mn.us/water/watershed-approach-restoring-and-protecting-water-quality Watershed Restoration and Protection Strategy]'''</span> |
*<span title="Wave energy (or wave power) is the transport and capture of energy by surface water waves"> '''wave energy'''</span> | *<span title="Wave energy (or wave power) is the transport and capture of energy by surface water waves"> '''wave energy'''</span> | ||
| − | *<span title=" | + | *<span title="A low dam built across a river or body of flowing water to raise the level of water upstream or regulate its flow."> '''weir'''</span> |
| − | *<span title=" | + | *<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> |
*<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> | ||
| − | *<span title=" | + | *<span title="A stormwater retention basin that includes a combination of permanent pool storage and extended detention storage above the permanent pool to provide additional water quality or rate control"> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_ponds '''wet pond''']</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> | *<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> | ||
| − | *<span title=" | + | *<span title="A stormwater quality model developed for the USGS by John Voorhees and Robert Pitt for evaluation of nonpoint pollution in urban areas. The model is based on field observations of grass swales, wet detention ponds, porous pavement, filter strips, cisterns and rain barrels, hydrodynamic settling devices, rain gardens/biofilters and street sweeping, as either other source area or outfall control practices. The focus of the model is on small storm hydrology and particulate washoff."> [https://stormwater.pca.state.mn.us/index.php?title=Available_stormwater_models_and_selecting_a_model#WinSLAMM '''WinSLAMM''']</span> |
==X== | ==X== | ||
Revision as of 22:55, 6 January 2021
Hover boxes allow the user to hover over bolded text and see a definition for that text. If the bolded text is blue, there is a link to more information.
We have only begun to use them since June, 2019. When we modify older pages, we will incorporate hover boxes into updates.
This page lists standard definitions used in hover boxes throughout this manual. Hover your mouse over any bolded term and a definition will be displayed. This list will continue to expand as new terms are encountered. You'll note that some terms have not yet been defined (not bolded).
Contents
A
- aggregate
- anthropogenic
- antidegradation
- aquatic habitat
- armoring
- arterial roads
- alum
- anoxic
B
- baffle
- bank stabilization
- baseflow
- baseline year
- basin
- bathymetric survey
- berm
- best management practice
- biochar
- bioavailable
- biodegradation
- biofiltration
- bioinfiltration
- biological oxygen demand
- biomass
- bioretention practice
- Bioswale
- biotic impairment
- brownfield
- Brushing
- buffer zones
- build-up
- bulk density
- bypass flow
C
- catch basin
- catchment
- categorical wasteload allocation
- cation exchange capacity
- chain of custody
- chemical oxygen demans
- check dam
- cistern
- clay
- Clean Water Act
- coagulation
- coarse sediment
- cofferdam
- coir
- collector roadway
- combined sewer
- compacted soil
- compost
- compost maturity
- concentrated flow
- concentrated stormwater runoff
- connected impervious
- continuous model
- contributing drainage area
- conventional roof
- curb-cut
- curb bump-out
- curve number method
D
- dead storage
- deicing
- depression storage
- design flow
- design flow
- detention times
- dewatering
- dewatering device
- directly connected impervious
- dissolved oxygen
- dissolved phosphorus
- disconnected roof runoff
- Disturbed soils
- ditch checks
- drainage Area
- Drinking Water Source Management Area (DWSMA),
- “drop waterfalls”
- dry storage
- dry swale
- dry weather flow
E
- earthen berm
- Earthen check dams
- ecoregion
- electrical conductivity
- embankment
- empirical model
- energy dissipation
- energy dissipation
- engineered media
- Emergency Response Area
- ephemeral stream
- erosion control blankets
- erosion control mix
- erosion protection
- evapotranspiration
- event mean concentration
- exchangeable sodium percent
- export
- extensive roofs
F
- feedstock
- fiber roll
- fill
- filter fabric
- filtration
- filter strip
- fine sand
- final stabilization
- fine textured soil
- first flush
- flash
- floatables
- flocculant
- flocculation
- flow paths
- flow-through device
- flow-weighted mean concentration
- fluvial systems
- footprint
- forebay
- fractured flow
G
- Geographic Information System (GIS)
- geometric mean
- geotextile
- grade
- grade control structures
- gray infrastructure
- green infrastructure
- green roof
- green space
- geotextile
- gross solids
- grubbing
H
- hardness
- herbaceous perennial
- High-density polyethylene
- highly urban and ultra-urban environments
- hydraulic conductivity (k)
- hydraulic grade line
- hydraulic gradient (i),
- hydraulic model
- hydrodynamic separator
- hydrogeology
- hydrologic soil group
- hydroseed
I
- illicit discharge
- impaired water
- impervious disconnection
- implementation plan
- incised stream
- infiltration
- infiltration basin
- infiltration rate
- inlet structure
- integral curb
- intensive roof
- intermittent flow channel
- invert
- iron-enhanced sand filter
J
K
L
- large lot residential
- leaching
- level spreader
- lignin
- live storage
- loam
- longitudinal slope
- low permeability soils
M
- manhole
- media
- mesic
- mesocarp
- model
- moderate to steep slopes
- mounding
- MS4 (Municipal Separate Storm Sewer System)
- mulching
N
- NPDES
- nitrous oxide
- non-structural practice
- Notice of Termination
O
- ordinary high water level
- organic material
- outfall
- overland flow
- oxidation-reduction reaction
P
- P8
- particle size distribution
- pathogen
- perennial
- perennial stream
- performance goal
- perimeter control
- permanent cover
- permanent stormwater management
- permeable pavement
- permeable reactive barrier
- Phase 1
- Phase 2
- physically-based model
- pilings
- plug flow.
- plugs
- point of discharge
- pollution prevention
- polycyclic aromatic hydrocarbons
- polymer
- porosity (f)
- Portland cement concrete
- Prairie du Chien formation,
- Prescribed burning
- pretreatment
- pre-wetting
- proprietary structures
- public ditch
- public water
Q
- QA/QC
- Quality Assurance Project Plan
R
- rainfall distribution
- Rational Method
- receiving water
- redundant
- removal efficiency
- resuspension
- riparian zone
- riprap
- riprap
- rock armored
- rock riffle
- runoff coefficient
Sa-Sn
- sand filter
- sanitary sewer
- scour hole
- scouring
- screen (for pretreatment)
- Secchi disk
- sediment basin
- sediment trap
- sediment control
- sedimentation
- settling ponds
- settling device (for pretreatment)
- settling time
- settling velocity
- shallow depth to bedrock
- Shallow soils
- sheet flow
- sheet pile
- short-circuiting
- side slope
- silt
- silt curtain
- silt fence
- sinkhole
- Site Location / Minimum Setbacks
- sizing
- skimmer
So-Sz
- soil aggregation
- soil compaction
- soil erosion
- soil moisture holding capacity (gravity drained water)
- soil organic matter
- soil quality
- soil stabilization
- soil structure
- soil texture
- soil type
- soluble
- sonde
- sorption
- special water
- specific gravity
- spill response plan
- spillway
- standard operating procedure
- steep slopes
- stockpile
- Stoke's Law
- stormwater conveyance channel
- stormwater hotspot
- stormwater wetland
- structural stormwater BMP
- subsurface sewage treatment system (SSTS)
- sump
- sump manhole
- surface roughness
- suspended solids
- swale
- SWPPP
T
- tackifier
- temporary seeding
- time of concentration
- total maximum daily load
- total phosphorus
- trapezoid
- travel time
- treatment practice
- treatment train
- turbid
- turbulent drag
- turf reinforcement mat
- two-stage channel
- Type 2 rain distribution
U
- highly urban and ultra-urban environments
- underdrain
- under-draining
- undersized BMP
V
- vane weir structures
- Vegetated filter strip
- vegetated swale
- viscosity
W
- wash-off
- washout
- wasteload allocation
- water holding capacity
- water quality standard
- Water Quality Volume
- A water table aquifer
- Watershed Restoration and Protection Strategy
- wave energy
- weir
- Wellhead Protection Areas
- well logs
- wet pond
- wet storage
- wet swale
- WinSLAMM