Hover box definitions

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
• aggregation
• anthropogenic
• antidegradation
• aquatic habitat
• armoring
• arterial roads
• alum
• anoxic
• as-built

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
• brownfield
• Brushing
• buffer zones
• build-up
• bulk density
• bypass flow

C

• carbon sequestration
• catch basin
• catchment
• categorical wasteload allocation
• cation exchange capacity
• cellulose
• chain of custody
• 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
• detritus
• 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
• ecosystem services
• ecosystem values
• electrical conductivity
• electron donor
• 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 ions
• 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 path
• flow-through device
• flow-weighted mean concentration
• fluvial systems
• footprint
• forebay
• fractured flow
• functional group

G

• Geographic Information System (GIS)
• geometric mean
• geotextile
• 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
• High-density polyethylene
• highly urban and ultra-urban environments
• hopper
• hydraulic conductivity (k)
• hydraulic grade line
• hydraulic gradient (i),
• 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
• inlet structure
• institutional land use
• integral curb
• intensive roof
• intermittent flow channel
• invert
• iron-enhanced sand filter

K

• Karst

L

• large lot residential
• leaching
• level spreader
• lidar
• 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

• 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
• overland flow
• oxidation-reduction reaction

P

• 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
• 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
• 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

• 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 (SRV)
• 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
• 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
• trash rack
• transportation land use
• 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
• 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
• WinSLAMM