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

  • aquatic habitat
  • arterial roads
  • alum

B

  • baffle
  • bank stabilization
  • baseflow
  • berm
  • best management practice
  • biodegradation
  • biofiltration
  • bioinfiltration
  • bioretention practice
  • Bioswale
  • biotic impairment
  • brownfield
  • Brushing
  • buffer zones
  • bypass flow

C

  • catch basin
  • catchment
  • cistern
  • clay
  • coagulation
  • coarse sediment
  • cofferdam
  • collector roadway
  • compacted soil
  • compost
  • concentrated flow
  • concentrated stormwater runoff
  • contributing area
  • conventional roof
  • curb-cut
  • curb bump-out

D

E

F

  • fiber roll
  • filter fabric
  • filtration
  • filter strip
  • 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

J

K

L

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

M

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

N

O

P

Q

R

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

S

  • scour hole
  • scouring
  • screen (for pretreatment)
  • sediment basin
  • sediment trap
  • sediment control
  • settling ponds
  • settling device (for pretreatment)
  • settling time
  • short-circuiting
  • shallow depth to bedrock
  • Shallow soils
  • sheet flow
  • sheet pile
  • side slope
  • silt
  • silt fence
  • sinkhole
  • Site Location / Minimum Setbacks
  • sizing
  • skimmer
  • soil stabilization
  • sorption
  • special water
  • specific gravity
  • spill response plan
  • spillway
  • <span title="the definition of a steep slope is somewhat arbitrary and depends on the context and other site characteristics, such as soil type and vegetative cover. Slopes greater than 12 percent are considered highly erodible, while slopes greater than 18% are often considered severe" steep slopes
  • stockpile
  • stormwater conveyance channel
  • sump
  • sump manhole
  • surface roughness
  • SWPPP

T

U

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

V

W

X

Y

Z