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==A==
 
==A==
 
*<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="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="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="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="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>
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*<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="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="the accumulation of sediment and other pollutants on impermeable surfaces"> '''build-up'''</span>
 
*<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="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="a measure of how many cations can be retained on soil particle surfaces"> '''cation exchange capacity'''</span>
 
*<span title="a measure of how many cations can be retained on soil particle surfaces"> '''cation exchange capacity'''</span>
 
*<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="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="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="a waterproof receptacle for holding liquids, usually water. Cisterns are often built to catch and store rainwater."> '''cistern'''</span>
 
*<span title="a waterproof receptacle for holding liquids, usually water. Cisterns are often built to catch and store rainwater."> '''cistern'''</span>
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*<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="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="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="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="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="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="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="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>
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==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="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="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="a microbe or microorganism such as a virus, bacterium, prion, or fungus that causes disease in humans."> '''pathogen'''</span>
 
*<span title="a microbe or microorganism such as a virus, bacterium, prion, or fungus that causes disease in humans."> '''pathogen'''</span>
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*<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="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="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 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>
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==R==
 
==R==
 
*<span title="Manner in which the depth of rainfall varies in space and time"> '''rainfall distribution'''</span>
 
*<span title="Manner in which the depth of rainfall varies in space and time"> '''rainfall distribution'''</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."> '''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="use of more than one BMP to provide additional treatment or protection"> '''redundant'''</span>
 
*<span title="use of more than one BMP to provide additional treatment or protection"> '''redundant'''</span>
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*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="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 14:44, 23 September 2020

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).

A

  • aggregate
  • anthropogenic
  • antidegradation
  • aquatic habitat
  • armoring
  • arterial roads
  • alum
  • anoxic

B

  • baffle
  • bank stabilization
  • baseflow
  • 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 area
  • conventional roof
  • curb-cut
  • curb bump-out
  • curve number method

D

E

F

G

  • Geographic Information System (GIS)
  • geometric mean
  • geotextile
  • grade
  • grade control structures
  • green roof
  • green space
  • geotextile
  • gross solids
  • grubbing

H

  • 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

J

K

L

  • large lot residential
  • leaching
  • level spreader
  • lignin
  • live storage
  • loam
  • longitudinal slope
  • low permeability soils

M

N

O

P

  • P8
  • particle size distribution
  • pathogen
  • perennial
  • perennial stream
  • performance goal
  • perimeter control
  • permanent cover
  • permanent stormwater management
  • permeable pavement
  • 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

Sa-Sn

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

U

  • highly urban and ultra-urban environments
  • underdrain
  • under-draining
  • undersized BMP

V

W

X

Y

Z