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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
- aggregation
- alum
- aliphatic
- anthropogenic
- antidegradation
- aquatic habitat
- armoring
- aromatic
- arterial roads
- anoxic
- as-built
- aspect
- available water capacity
B
- baffle
- bank stabilization
- baseflow
- baseline year
- base saturation
- basin
- bathymetric survey
- berm
- best management practice
- biochar
- bioavailable
- biodegradation
- biofiltration
- bioinfiltration
- biological oxygen demand
- biomass
- bioreactor
- bioretention practice
- Bioswale
- biotic impairment
- bmp lifespan
- bounce
- brownfield
- Brushing
- buffer zones
- build-up
- bulk density
- bypass flow
C
- C-33 sand
- carbon sequestration
- catch basin
- catchment
- categorical wasteload allocation
- cation exchange capacity
- cellulose
- chain of custody
- channelized flow
- chemical oxygen demand
- check dam
- chelating agent
- cistern
- clay
- claypan
- Clean Water Act
- climate adaptation
- coagulation
- coarse sediment
- coarse texture
- cofferdam
- coir
- collector roadway
- combined sewer
- commercial land use
- compacted soil
- compost
- compost maturity
- concentrated flow
- concentrated stormwater runoff
- connected impervious
- continuous model
- contributing drainage area
- credit (stormwater credit)
- conventional roof
- curb-cut
- curb bump-out
- curve number method
D
- dead storage
- deicing
- denitrification
- depression storage
- design flow
- design flow
- detention times
- design infiltration rate
- detritus
- dewatering
- dewatering device
- directly connected impervious
- dissolved oxygen
- dissolved phosphorus
- disconnected roof runoff
- Disturbed soils
- ditch checks
- drainage Area
- drawdown time
- Drinking Water Source Management Area (DWSMA),
- drip irrigation
- “drop waterfalls”
- dry storage
- dry swale
- dry weather flow
E
- earthen berm
- Earthen check dams
- ecoregion
- ecosystem services
- ecosystem values
- effluent
- electrical conductivity
- electron donor
- embankment
- emergent vegetation
- 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 ions
- exchangeable sodium percent
- export
- extensive roofs
F
- feedstock
- fiber roll
- field capacity
- fill
- filter fabric
- filter strip
- filtration
- fine sand
- final stabilization
- fine textured soil
- first flush
- flash
- floatables
- flocculant
- flocculation
- flow path
- flow-through device
- flow-weighted mean concentration
- fluvial systems
- footprint
- forebay
- fractured flow
- functional group
G
- Geographic Information System (GIS)
- geometric mean
- geotextile
- Global Positioning System (GPS)
- grade
- grade control structures
- gray infrastructure
- Green infrastructure
- green stormwater infrastructure
- green roof
- green space
- geotextile
- gross solids
- grubbing
H
- hardness
- harvest and reuse
- heat island
- herbaceous perennial
- herbivory
- High-density polyethylene
- highly urban and ultra-urban environments
- hopper
- hydraulic conductivity (k)
- hydraulic grade line
- hydraulic gradient (i),
- hydraulic head
- hydraulic model
- hydrocarbon
- hydrodynamic separator
- hydrogeology
- hydrologic soil group
- hydrometer
- hydroseed
I
- illicit discharge
- impaired water
- impervious disconnection
- impermeable
- implementation plan
- incised stream
- industrial land use
- infiltration
- infiltration basin
- infiltration rate
- influent
- inlet structure
- instantaneous volume
- institutional land use
- integral curb
- intensive roof
- interception
- invasive species
- intermittent flow channel
- invert
- iron-enhanced sand filter
- irrigation demand
J
K
L
- large lot residential
- leaching
- level spreader
- lidar
- lignin
- live storage
- loam
- longitudinal slope
- low permeability soils
M
- macropore
- manhole
- manufactured treatment device
- media
- mesic
- mesocarp
- microclimate
- model
- moderate to steep slopes
- mounding
- MS4 (Municipal Separate Storm Sewer System)
- mulching
N
- native species
- NPDES
- nitrous oxide
- non-structural practice
- Notice of Termination
- nutrient cycling
O
- observation well
- offline
- open space
- ordinary high water level
- organic material
- outfall
- overbank flood protection
- overland flow
- oxidation-reduction reaction
Pa-Pm
- P8
- particle size distribution
- particulate phosphorus
- particulate matter (air)
- particulate matter (water)
- ped
- pathogen
- perennial
- perennial stream
- performance goal
- perimeter control
- permanent cover
- permanent pool
- permanent stormwater management
- permeable pavement
- permeable reactive barrier
- Phase 1
- Phase 2
- physically-based model
- pilings
- plug flow
- plugs
- point of discharge
Pn-Pz
- pollution prevention
- polycyclic aromatic hydrocarbons
- polymer
- porosity (f)
- Portland cement concrete
- Prairie du Chien formation
- Prescribed burning
- pre-settlement
- pretreatment
- pre-wetting
- primary treatment practice
- proprietary structures
- public ditch
- public water
Q
- QA/QC
- Quality Assurance Project Plan
R
- rainfall distribution
- Rational Method
- recurrence interval
- receiving water
- redundant
- removal efficiency
- residential land use
- resuspension
- riparian zone
- riprap
- riprap
- rock armored
- rock riffle
- runoff
- runoff coefficient
Sa-Sn
- sand
- sand filter
- sanitary sewer
- scour hole
- scouring
- screen (for pretreatment)
- Secchi disk
- sediment basin
- sediment trap
- sediment control
- sedimentation
- sequester
- 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 adsorption
- sodium adsorption ratio
- soil aggregation
- soil compaction
- soil erosion
- soil health
- Soil Leaching Value (SLV)
- soil moisture holding capacity (gravity drained water)
- soil organic matter
- soil quality
- Soil Reference Values (SRVs)
- soil stabilization
- soil structure
- soil texture
- soil type
- soil water (moisture) content
- soluble
- sonde
- sorption
- special water
- specific gravity
- spill response plan
- spillway
- standard operating procedure
- steep slopes
- stockpile
- step pool
- Stoke's Law
- stormwater conveyance channel
- stormwater hotspot
- stormwater wetland
- structural stormwater BMP
- subsurface sewage treatment system (SSTS)
- suberin
- sump
- sump manhole
- surface roughness
- suspended solids
- swale
- SWPPP
T
- tackifier
- tannins
- tax increment financing
- temporary seeding
- time of concentration
- total maximum daily load
- total phosphorus
- transpiration
- trash rack
- transportation land use
- trapezoid
- travel time
- treatment practice
- treatment train
- tree inventory
- 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
- vegetative filtering
- vegetated filter strip
- vegetated swale
- viscosity
- volatilization
W
- wash-off
- washout
- wasteload allocation
- water cycle
- 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
- wilting point
- WinSLAMM