Hover box definitions

This page lists standard definitions used in hover boxes throughout this manual. Hover boxes allow the user to hover over bolded text and see a definition for that text.

A

• aggregate
• aquatic habitat
• armoring
• arterial roads
• alum

B

• baffle
• bank stabilization
• baseflow
• bathymetric survey
• berm
• best management practice
• biodegradation
• biofiltration
• bioinfiltration
• biological oxygen demand
• bioretention practice
• Bioswale
• biotic impairment
• brownfield
• Brushing
• buffer zones
• build-up
• bypass flow

C

• catch basin
• catchment
• categorical wasteload allocation
• cation exchange capacity
• check dam
• cistern
• clay
• coagulation
• coarse sediment
• cofferdam
• coir
• collector roadway
• compacted soil
• compost
• compost maturity
• concentrated flow
• concentrated stormwater runoff
• continuous model
• contributing area
• conventional roof
• curb-cut
• curb bump-out
• curve number method

D

• dead storage
• depression storage
• design flow
• design flow
• detention times
• dewatering
• dewatering device
• directly connected impervious
• dissolved phosphorus
• disconnected roof runoff
• Disturbed soils
• ditch checks
• drainage Area
• Drinking Water Source Management Area (DWSMA),
• “drop waterfalls”
• dry storage
• dry swale

E

• earthen berm
• Earthen check dams
• 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
• extensive roofs

F

• fiber roll
• fill
• filter fabric
• filtration
• filter strip
• final stabilization
• first flush
• flash
• floatables
• flocculant
• flocculation
• flow paths
• flow-through device
• fluvial systems
• footprint
• forebay
• fractured flow

G

• 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 of the aquifer material (k),
• hydraulic grade line
• hydraulic gradient (i),
• hydraulic model
• hydrodynamic separator
• hydrogeology

I

• impaired water
• implementation plan
• incised stream
• infiltration
• infiltration basin
• infiltration rate
• inlet structure
• integral curb
• intensive roof
• intermittent flow channel
• invert
• iron-enhanced sand filter

K

• Karst

L

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

M

• manhole
• media
• mesic
• model
• moderate to steep slopes
• MS4 (Municipal Separate Storm Sewer System)
• mulching

N

• Notice of Termination

O

• ordinary high water level
• outfall
• overland flow

P

• particle size distribution
• perennial
• perennial stream
• performance goal
• perimeter control
• permanent cover
• permanent stormwater management
• physically-based model
• pilings
• plugs
• point of discharge
• polymer
• porosity (f)
• Portland cement concrete
• Prairie du Chien formation,
• Prescribed burning
• pretreatment
• proprietary structures
• public ditch
• public water

Q

• QA/QC

R

• Rationale Method
• receiving water
• redundant
• removal efficiency
• resuspension
• riparian zone
• riprap
• riprap
• rock armored
• rock riffle
• runoff coefficient

Sa-Sn

• scour hole
• scouring
• screen (for pretreatment)
• Secchi disk
• sediment basin
• sediment trap
• sediment control
• sedimentation
• settling ponds
• settling device (for pretreatment)
• settling time
• 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 moisture holding capacity (gravity drained water)
• soil organic matter
• soil quality
• soil stabilization
• soil structure
• soil texture
• soil type
• soluble
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• sorption
• special water
• specific gravity
• spill response plan
• spillway
• steep slopes
• stockpile
• stormwater conveyance channel
• structural stormwater BMP
• sump
• sump manhole
• surface roughness
• swale
• SWPPP

T

• temporary seeding
• total maximum daily load
• trapezoid
• travel time
• treatment train
• turbid
• turf reinforcement mat
• two-stage channel

U

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

V

• vane weir structures
• Vegetated filter strip
• vegetated swale

W

• wash-off
• washout
• wasteload allocation
• water quality standard
• Water Quality Volume
• A water table aquifer
• wave energy
• weir
• Wellhead Protection Areas
• well logs
• wet pond
• wet storage
• wet swale