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Line 786: − + − Wetland − A vegetated area such as a bog, fen, marsh, or swamp, where the soil or root zone is saturated for part of the year. − + + + + +
no edit summary
;Biofilter
;Biofilter
;biofilter
;biofilter
;Biofilters
;biofilters
;biofilters
:A bioretention BMP featuring an impermeable liner and underdrain that prevents infiltration of runoff into the underlying native soil; provides sedimentation and filtration of urban runoff as it passes through the mulch layer, engineered filter media and vegetation root zone.
:A bioretention BMP featuring an impermeable liner and underdrain that prevents infiltration of runoff into the underlying native soil; provides sedimentation and filtration of urban runoff as it passes through the mulch layer, engineered filter media and vegetation root zone.
:Linear bioretention cell designed to convey, treat and attenuate stormwater runoff. The engineered filter media soil mixture and vegetation slows the runoff water to allow sedimentation, filtration through the root zone, evapotranspiration, and infiltration into the underlying native soil.
:Linear bioretention cell designed to convey, treat and attenuate stormwater runoff. The engineered filter media soil mixture and vegetation slows the runoff water to allow sedimentation, filtration through the root zone, evapotranspiration, and infiltration into the underlying native soil.
;BMP
:Best management practice. State of the art methods or techniques used to manage the quantity and improve the quality of wet weather flow. BMPs include: source, conveyance and end-of-pipe controls.
;BMP or Best Management Practices
;Best Management Practices
State of the art methods or techniques used to manage the quantity and improve the quality of wet weather flow. BMPs include Source, Conveyance and End-Of-Pipe Controls.
;best management practices
:State of the art methods or techniques used to manage the quantity and improve the quality of wet weather flow. BMPs include Source, Conveyance and End-Of-Pipe Controls.
;Catchbasin
;Catchbasin
;catchbasin
;catchbasin
Box like underground concrete structure with openings in curb and gutter designed to collect runoff from streets and pavement.
:Box like underground concrete structure with openings in curb and gutter designed to collect runoff from streets and pavement.
;Catchment
;Catchment
;conveyance
;conveyance
:Movement of water from one location to another.
:Movement of water from one location to another.
;Cultivar
;Cultivar
;cultivar
;cultivar
:A cultivated variety of a plant created by horticultural practice, often closed in large numbers from a similar individual. Cultivar names typically appear after the scientific name of a species, e.g. Prunus virginiana ‘Shubert’.
:A cultivated variety of a plant created by horticultural practice, often closed in large numbers from a similar individual. Cultivar names typically appear after the scientific name of a species, e.g. Prunus virginiana ‘Shubert’.
;CVC
:Credit Valley Conservation
;Depression Storage
;Depression Storage
;green roof
;green roof
:A thin layer of vegetation and growing medium installed on top of a conventional flat or sloped roof, also referred to as living roofs or rooftop gardens.
:A thin layer of vegetation and growing medium installed on top of a conventional flat or sloped roof, also referred to as living roofs or rooftop gardens.
;GI
:Green infrastructure
;Green infrastructure
;Green infrastructure
;I/P ratio
;I/P ratio
:The ratio of the catchment (impervious area) to the footprint area of the receiving BMP (pervious area).
:The ratio of the impervious catchment (drainage) area to the pervious (footprint) area of the receiving BMP.
;LSRCA
:Lake Simcoe Region Conservation Authority
;Landform
;Landform
;lot level
;lot level
:The treatment of urban runoff as close to the source area as possible through application of small scale stormwater management practices on individual properties that are linked to downstream conveyance and end-of-pipe practices.
:The treatment of urban runoff as close to the source area as possible through application of small scale stormwater management practices on individual properties that are linked to downstream conveyance and end-of-pipe practices.
;LID
:Low Impact Development. A stormwater management strategy that seeks to mitigate the impacts of increased urban runoff and stormwater pollution by managing it as close to its source as possible. It comprises a set of site design approaches and small scale stormwater management practices that promote the use of natural systems for infiltration and evapotranspiration, and rainwater harvesting.
;Low impact development
;Low impact development
;rainwater harvesting
;rainwater harvesting
:The practice of intercepting, conveying and storing rainwater for future use. Captured rainwater is typically used for outdoor non-potable water uses such as irrigation, or in the building to flush toilets.
:The practice of intercepting, conveying and storing rainwater for future use. Captured rainwater is typically used for outdoor non-potable water uses such as irrigation, or in the building to flush toilets.
;RWH
:Rainwater harvesting.
;Recharge
;Recharge
;Stone reservoir
;Stone reservoir
;stone reservoir
;stone reservoir
:An underlying aggregate material bed that temporarily stores stormwater before infiltrating into the native soil or being conveyed by an underdrain pipe.
;Storage reservoir
;storage reservoir
:An underlying bed filled with aggregate or other void-forming fill material that temporarily stores stormwater before infiltrating into the native soil or being conveyed by an underdrain pipe.
;Stormwater planter
;Stormwater planter
;TP
;TP
:Total phosphorus
:Total phosphorus
;TRCA
:Toronto and Region Conservation Authority
;TSS
;TSS
:An area of land that drains into a river or a lake. The boundary of a watershed is based on the elevation (natural contours) of a landscape.
:An area of land that drains into a river or a lake. The boundary of a watershed is based on the elevation (natural contours) of a landscape.
;Clay
;clay
1. A mineral soil separate consisting of particles less than 0.002 millimeter in equivalent diameter. 2. A soil texture class. 3. (Engineering) A fine-grained soil (more than 50 percent passing the No. 200 Sieve) that has a high plasticity index in relation to the liquid limit. (Unified Soil Classification System).
:1. A mineral soil separate consisting of particles less than 0.002 millimeter in equivalent diameter. 2. A soil texture class. 3. (Engineering) A fine-grained soil (more than 50 percent passing the No. 200 Sieve) that has a high plasticity index in relation to the liquid limit. (Unified Soil Classification System).
;Collector road
;Collector road
;Combined Sewer
;Combined Sewer
;combined sewer
:A wastewater collection system, which conveys sanitary wastewater (domestic, commercial and industrial wastewaters) and Stormwater runoff through a single-pipe system to a treatment works.
:A wastewater collection system, which conveys sanitary wastewater (domestic, commercial and industrial wastewaters) and Stormwater runoff through a single-pipe system to a treatment works.
;Combined sewer overflow
;Combined sewer overflow
;combined sewer overflow
;combined sewer overflow
:A discharge to the environment from a Combined Sewer system that occurs because of a precipitation event when the capacity of the interceptor sewer or treatment plant is exceeded. It consists of a mixture of sanitary wastewater and Stormwater runoff.
:A discharge to the environment from a combined Sewer system that occurs because of a precipitation event when the capacity of the interceptor sewer or treatment plant is exceeded. It consists of a mixture of sanitary wastewater and Stormwater runoff.
;Conveyance
;Conveyance practice
A structural BMP that is located within the drainage system where flows are concentrated and are being conveyed along corridor. Include but are not limited to pervious pipes, swales, and other similar systems.
;conveyance practice
:A structural practice that is located within the drainage system where flows are concentrated and are being conveyed along corridor. Include but are not limited to pervious pipes, swales, and other similar systems.
;Ditch
;Ditch
;Erosion
;Erosion
(1) The wearing away of the land surface by moving water, wind, ice or other geological agents, including such processes as gravitation creep; (2) Detachment and movement of soil or rock fragments by water, wind, ice or gravity (i.e. Accelerated, geological, gully, natural, rill, sheet, splash, or impact, etc).
;erosion
:(1) The wearing away of the land surface by moving water, wind, ice or other geological agents, including such processes as gravitation creep; (2) Detachment and movement of soil or rock fragments by water, wind, ice or gravity (i.e. Accelerated, geological, gully, natural, rill, sheet, splash, or impact, etc).
;Erosion control
;Erosion control
:Includes the protection of soil from dislocation by water, wind or other agents.
:Includes the protection of soil from dislocation by water, wind or other agents.
;Evapotranspiration (ET)
;ET
:Evapotranspiation
;Evapotranspiration
;evapotranspiration
:The quantity of water transpired (given off). Retained in plant tissues, and evaporated from plant tissues and surrounding soil surfaces. Quantitatively it is usually expressed in terms of depth of water per unit area during a specified period. e.g. mm/day
:The quantity of water transpired (given off). Retained in plant tissues, and evaporated from plant tissues and surrounding soil surfaces. Quantitatively it is usually expressed in terms of depth of water per unit area during a specified period. e.g. mm/day
;Floodplain (100-year)
;Floodplain (100-year)
;floodplain
:The area adjacent to a stream that is, on average, inundated once a century
:The area adjacent to a stream that is, on average, inundated once a century
;Geomorphology
;Geomorphology
;geomorphology
:A branch of both physiography and geology that deals with the form of the earth, the general configuration of its surface, and the changes that take place due to erosion of the primary elements and the buildup of sediment.
:A branch of both physiography and geology that deals with the form of the earth, the general configuration of its surface, and the changes that take place due to erosion of the primary elements and the buildup of sediment.
;Groundwater
;Groundwater
;groudnwater
;groundwater
:The water below the surface, and typically below the groundwater table.
:The water below the surface, and typically below the groundwater table.
;water table
;water table
;Water table
;Water table
The upper surface of the zone of saturation, except where the surface is formed by an impermeable body.
:The upper surface of the zone of saturation, except where the surface is formed by an impermeable body.
;Headwater
;Headwater
;headwater
;headwater
Referring to the source of a stream or river.
:Referring to the source of a stream or river.
;Treatment train
;Treatment train
;treatment train
;treatment train
Stormwater management following the hierarchical approach: Source Control measures, Conveyance Control measure and End of Pipe treatment to achieve the water quality and water balance target for lot level development of the preferred strategy.
:Stormwater management following the hierarchical approach: Source Control measures, Conveyance Control measure and End of Pipe treatment to achieve the water quality and water balance target for lot level development of the preferred strategy.
;Hydrologic cycle
;Hydrologic cycle
;Infiltration
;Infiltration
;infitlration
;infiltration
:The slow movement of water into or through a soil or drainage system.
:The slow movement of water into or through a soil or drainage system.
;Infiltration rate
;Infiltration rate
;infiltration rate
:The rate at which stormwater percolates into the subsoil measured in inches per hour.
:The rate at which stormwater percolates into the subsoil measured in inches per hour.
;Irrigation
;Irrigation
;irrigation
:Human application of water to agricultural or recreational land for watering purposes. City of Toronto Wet Weather Flow Management November 2006 47
:Human application of water to agricultural or recreational land for watering purposes. City of Toronto Wet Weather Flow Management November 2006 47
:Low impact development is a stormwater management and land development strategy applied at the parcel and subdivision scale that emphasizes conservation and use of on-site natural features integrated with engineered, small scale hydrologic controls to more closely mimic pre-development hydrologic functions.
:Low impact development is a stormwater management and land development strategy applied at the parcel and subdivision scale that emphasizes conservation and use of on-site natural features integrated with engineered, small scale hydrologic controls to more closely mimic pre-development hydrologic functions.
;Major drainage system
;Major drainage system
;major drainage system
:That storm drainage system which carries the total runoff of the drainage system less the runoff carried by the minor system (storm sewer). The major system will function whether or not it has been planned and designed, and whether or not developments are situated wisely with respect to it. The Major Drainage System usually includes many features such as streets, gullies, and major drainage channels.
:That storm drainage system which carries the total runoff of the drainage system less the runoff carried by the minor system (storm sewer). The major system will function whether or not it has been planned and designed, and whether or not developments are situated wisely with respect to it. The Major Drainage System usually includes many features such as streets, gullies, and major drainage channels.
;Minor drainage system
;Minor drainage system
;minor drainage system
;minor drainage system
;minor system
;Minor system
:That storm drainage system which is frequently used for collecting, transporting, and disposing of snowmelt, miscellaneous minor flows, and storm runoff up to the capacity of the system. The capacity should be equal to the maximum rate of runoff to be expected from the minor design storm which may have a frequency of occurrence of one in 2, or 5 years. The minor system may include many features ranging from curbs and gutters to storm sewer pipes and open drainage ways.
:That storm drainage system which is frequently used for collecting, transporting, and disposing of snowmelt, miscellaneous minor flows, and storm runoff up to the capacity of the system. The capacity should be equal to the maximum rate of runoff to be expected from the minor design storm which may have a frequency of occurrence of one in 2, or 5 years. The minor system may include many features ranging from curbs and gutters to storm sewer pipes and open drainage ways.
:Projects following the philosophy in which terrestrial and aquatic vegetation provides the ability to cleanse water of its contaminants.
:Projects following the philosophy in which terrestrial and aquatic vegetation provides the ability to cleanse water of its contaminants.
;Oil/Grit Separator
;Oil/grit separator
;oil and grit separator
;OGS
;OGS
:Systems designed to remove trash, debris and some amount of sediment, oil and grease from stormwater runoff based on the principles of sedimentation for the grit and phase separation for the oil.
:Systems designed to remove trash, debris and some amount of sediment, oil and grease from stormwater runoff based on the principles of sedimentation for the grit and phase separation for the oil.
;Pond
;Pond
;pond
;pond
:A body of water smaller than a lake, often artificially formed.
:A body of water smaller than a lake, often artificially formed.
;Porosity
;porosity
:The porosity (n) of a mixture is the ratio of the volume of void-space to the total or bulk volume of the mixture. It is closely related to the concept of void ratio (e) where void ratio is the ratio of the volume of void-space to the volume of solids. n = Volume of voids/Total volume of mixture = e/(1+e)
;Precipitation
;Precipitation
;Runoff
;Runoff
;runoff
;runoff
:That potion of the water precipitated onto a catchment area, which flows as surface discharge from the catchment area past a specified point.
:The portion of water precipitated onto a catchment area, which then flows as surface discharge from the catchment area past a specified point.
;Sand
;Sand
;Soakaway
;Soakaway
;soakaway
;soakaway
:A pit into which liquids may flow and then percolate slowly into the subsoil.
:An underground water storage reservoir into which stormwater is directed and allowed to percolate into the underlying native subsoil.
;Source control
;Source control
;source control
:A practice or structural measure that is usually implemented at the beginning of a drainage system or at the lot level, to reduce the volume of runoff and minimize the concentration of pollution in overland flow from private property and prevent pollutants from entering Stormwater runoff or other environmental media, as described by the Ministry of Environment.
:A practice or structural measure that is usually implemented at the beginning of a drainage system or at the lot level, to reduce the volume of runoff and minimize the concentration of pollution in overland flow from private property and prevent pollutants from entering Stormwater runoff or other environmental media, as described by the Ministry of Environment.
;Stakeholder
;Stakeholder
;stakeholder
:Any person, agency or group who has a direct interest in the purpose of a proposed undertaking.
:Any person, agency or group who has a direct interest in the purpose of a proposed undertaking.
;stormwater
;stormwater
:Surface runoff from at-grade surfaces, resulting from rain or snowmelt events.
:Surface runoff from at-grade surfaces, resulting from rain or snowmelt events.
;STEP
:Sustainable Technologies Evaluation Program
;SWM
:Stormwater Management
;Stormwater wetlands
;Stormwater wetlands
;stormwater wetlands
;stormwater wetlands
Shallow, constructed pools that capture stormwater and allow for the growth of
:Shallow, constructed pools that capture stormwater and allow for the growth of characteristic wetland vegetation.
characteristic wetland vegetation.
Subwatershed
;Subwatershed
The drainage area of one or more contributing watercourses to a river.
;subwatershed
Subwatershed Plan
:The drainage area of one or more contributing watercourses to a river.
The result of a study undertaken within the drainage area of one or more watercourses of a specific river following the guidance presented in the MOE Stormwater Management Planning and Design Manual (i.e. Humber Creek subwatershed within the Humber River Watershed).
Swale
;Subwatershed plan
A shallow constructed channel, often grass-lined, which is used as an alternative to curb and channel, or as a pretreatment to other measures. Swales are generally characterized by a broad top width to depth ratio and gentle grades.
;subwatershed plan
:The result of a study undertaken within the drainage area of one or more watercourses of a specific river following the guidance presented in the MOE Stormwater Management Planning and Design Manual (i.e. Humber Creek subwatershed within the Humber River Watershed).
;Swale
;swale
;Swales
;swales
;Grass swale
;grass swale
;Grass swales
;grass swales
;Vegetated swale
;vegetated swale
;Vegetated swales
;vegetated swales
:A shallow constructed channel, often grass-lined, which is used as an alternative to curb and channel, or as a pretreatment to other measures. Swales are generally characterized by a broad top width to depth ratio and gentle grades.
;Total Suspended Solids (TSS)
;Total Suspended Solids
:The total amount of particulate matter that is suspended in the water column.
:The total amount of particulate matter that is suspended in the water column.
;Unit Response Function (URF)
;URF
:unit response function
;Unit Response Function
:Represents the hydrologic response and water quality response of the area to a pre-determined series of meteorological inputs.
:Represents the hydrologic response and water quality response of the area to a pre-determined series of meteorological inputs.
;UV disinfection
;UV disinfection
:A process of disinfecting that involves subjecting the item, object, or instrument to ultraviolet radiation.
:A process of disinfecting that involves subjecting the item, object, or instrument to ultraviolet radiation.
;Void ratio
;void ratio
;Void space ratio
;void space ratio
:The void ratio (e) of a mixture is the ratio of the volume of void-space to the volume of solids. It is closely related to the concept of porosity (n) where porosity is the ratio of the volume of void-space to the total or bulk volume of the mixture. e = Volume of voids/Volume of solids = n/(1-n)
;Watercourse
;Watercourse
;watercourse
;watercourse
:(a) A natural well-defined channel produced wholly or in part by a definite flow of water and through which water flows continuously or intermittently. Also, a ditch, canal, aqueduct, or other artificial channel for the conveyance of water to or away from a given place, as for the draining of a swamp. (b) A stream or current of water. Legally, a natural stream arising in a given drainage basin but not wholly dependent for its flow on surface drainage in its immediate area, flowing in a channel with a well-defined bed between visible banks or through a definite depression (as a ravine or swamp) in the surrounding land, having a definite and permanent periodic supply of water (the stream may be intermittent), and usually, but not necessarily having a perceptible current in a particular direction and discharging at affixed point into another body of water. (c) A legal right permitting the use of a flow of a stream (especially of one flowing through one’s land) or the receipt of water discharged upon land belonging to another.
:(a) A natural well-defined channel produced wholly or in part by a definite flow of water and through which water flows continuously or intermittently. Also, a ditch, canal, aqueduct, or other artificial channel for the conveyance of water to or away from a given place, as for the draining of a swamp.
:(b) A stream or current of water. Legally, a natural stream arising in a given drainage basin but not wholly dependent for its flow on surface drainage in its immediate area, flowing in a channel with a well-defined bed between visible banks or through a definite depression (as a ravine or swamp) in the surrounding land, having a definite and permanent periodic supply of water (the stream may be intermittent), and usually, but not necessarily having a perceptible current in a particular direction and discharging at affixed point into another body of water.
:(c) A legal right permitting the use of a flow of a stream (especially of one flowing through one’s land) or the receipt of water discharged upon land belonging to another.
;Water Conservation
;Water conservation
;water conservation
;water conservation
:Reduction in applied water due to more efficient water use such as implementation of Urban Best Management Practices or Agricultural Efficient Water Management Practices. The extent to which these actions actually create a savings in water supply depends on how they affect net water use and depletion.
:Reduction in applied water due to more efficient water use such as implementation of Urban Best Management Practices or Agricultural Efficient Water Management Practices. The extent to which these actions actually create a savings in water supply depends on how they affect net water use and depletion.
:The drainage area of a river.
:The drainage area of a river.
;Watershed Plan
;Watershed plan
;watershed plan
;watershed plan
:The result of a study undertaken within the drainage area of a specific river following the guidance presented in the MOE Stormwater Management Planning and Design Manual (i.e. Humber River Watershed).
:The result of a study undertaken within the drainage area of a specific river following the guidance presented in the MOE Stormwater Management Planning and Design Manual (i.e. Humber River Watershed).
;Wet Weather Flow
;Wetland
;wetland
:A vegetated area such as a bog, fen, marsh, or swamp, where the soil or root zone is saturated for part of the year.
;Wet weather flow
;wet weather flow
;wet weather flow
:Stormwater runoff generated by either rainfall or snowmelt or flow resulting from sanitary wastewater that enters the combined sewer system; infiltration and inflows from foundation drains or other drains are resulting from rainfall or snowmelt.
:Stormwater runoff generated by either rainfall or snowmelt or flow resulting from sanitary wastewater that enters the combined sewer system; infiltration and inflows from foundation drains or other drains are resulting from rainfall or snowmelt.