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|If the slope > 3% a series of [[Check dams]] or weirs should be included in the design.
|If the slope > 3% a series of [[Check dams]] or weirs should be included in the design.
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!colspan = "2" style="background: darkcyan; color: white; align = center"|'''Soil (bioretention filter media)'''
!colspan = "2" align = center"|'''Soil (bioretention filter media)'''
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|Thickness (mm)
|Thickness (mm)
|Suggested range 50 - 60 <ref name = SWMM/>
|Suggested range 50 - 60 <ref name = SWMM/>
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!colspan = "2" style="background: darkcyan; color: white; align = center"|'''Storage'''
!colspan = "2" align = center"|'''Storage'''
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|Thickness (mm)
|Thickness (mm)
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|Design drawdown time (hrs)
|Design drawdown time (hrs)
|Recommend 48 hours?
|Also known as [['drainage time']]
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!colspan = "2" style="background: darkcyan; color: white; align = center"|'''Drain (underdrain)'''
!colspan = "2" align = center"|'''Drain (underdrain)'''
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|Flow coefficient
|Flow coefficient