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Line 93:
Line 93: − By understanding sedimentation principles and incorporating best practices into stormwater management design, communities can improve water quality and reduce the impact of urban runoff on aquatic ecosystems.+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
→Best Practices for Sedimentation-Based Stormwater Treatment
'''Account for Seasonal Variability''' – Adjust design parameters based on temperature effects on settling velocity.
'''Account for Seasonal Variability''' – Adjust design parameters based on temperature effects on settling velocity.
===table===
{| class="wikitable"
|-
! Land use
! Number of <br />observations
! Location
! Sample<br />location
! Sample<br />method
! Analytical<br />method
! d10<br />(um)
! d50<br />(um)
! d90<br />(um)
! Source
|-
| Mixed<br />residential
| 66
| GTA
| Storm<br />sewer
| Auto-<br />sampler
| Coulter counter<br />particle analyzer
| 0.9
| 5.9
| 44
| SWAMP
|-
| Parking<br />lot
| 44
| Markham
| Storm<br />sewer
| Auto-<br />sampler
| Coulter counter<br />particle analyzer
| 2.0
| 9.0
| 92
| SWAMP
|-
| Commercial<br />parking lot
| 1
| Calgary
| Storm<br />sewer
| NA
| Coulter counter<br />particle analyzer
| 2.1
| 8.5
| 25.9
|
|-
| Public bus<br />yard
| 11
| Toronto
| Storm<br />sewer
| Auto-<br />sampler
| Micro-imaging
| 4.0
| 19.2
| 154.1
|
|-
| Commerical<br />parking lot
| 45
| Madison,<br />WI
| Storm<br />sewer
| Auto-<br />sampler
| Wet sieve (>32um);<br />particle analyzer (<32um)
| <2
| 55
| 500<br />
|
|-
| Mixed use
| 20
| Madison, <br />WI
| Storm<br />sewer
| Auto-<br />sampler
| Wet sieve (>32um);<br />particle analyzer (<32um)
| <2
| 42
| 200
|
|-
| Parking lot
| 94
| Madison, <br />WI
| Storm<br />sewer
| Auto-<br />sampler
| Wet sieve (>32 um);<br />particle analyzer (<32um)
| 2
| 54
| 350
|
|-
| Parking lot
| 18
| New<br />Hampshire
| Storm<br />sewer
| Auto-<br />sampler
| Particle analyzer
| -
| 46
| -
|
|-
| Mixed use<br />(roads)
| 176
| Ohio
| Catch<br />basin
| Auto-<br />sampler
| Coulter counter<br />particle analyzer
| 11
| 52.5
| 145
|
|-
| Mixed use
| 7
| Toronto<br />
| Storm<br />outfall
| Grab
| Coulter counter<br />particle analyzer
| 4.0
| 16.4
| 55.1
|
|-
| Parking lot
| 12
| Toronto,<br />Vaughan, <br />Brampton
| Direct<br />runoff, <br />man hole
| Grab
| Coulter counter<br />particle analyzer
| 2.6
| 12.4
| 55.2
|
|}