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|'''Bioretention'''
|'''Bioretention'''
|1
|1
|5:1 to 15:1||Underdrain required<br>if < 15 mm/hr||1 to 2||5 to 10||0 to 2||No||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||Yes||2 yr
|5:1 to 15:1||Underdrain recommended<br>if < 15 mm/hr||1 to 2||5 to 10||0 to 2||No||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||Yes||2 yr
|-
|-
|'''Stormwater planters'''
|'''Stormwater planters'''
|'''Permeable pavement'''
|'''Permeable pavement'''
|1
|1
|1:1 to 1.2:1||Underdrain Required <br> if < 15 mm/hr||0.5 to 1||0||1 to 5||No||4m-Underground Utilities<br>Drinking Water Wellhead<br>Protection Areas||Yes||2 Yr
|1:1 to 1.2:1||Underdrain recoomended <br> if < 15 mm/hr||0.5 to 1||0||1 to 5||No||4m-Underground Utilities<br>Drinking Water Wellhead<br>Protection Areas||Yes||2 Yr
|-
|-
|'''Enhanced grass swale (has checkdams)'''
|'''Enhanced grass swale (has checkdams)'''
|'''Dry swale (Bioswale)'''
|'''Dry swale (Bioswale)'''
|1
|1
|5:1 to 15:1||Underdrain Required <br> if < 15 mm/hr||1 to 3||5 to 10||0.5 to 6||No||4m (3m if impermeable liner<br>is used)Building foundation,<br> Underground utilities, drinking<br>water wellhead protection areas||Yes||2 Yr
|5:1 to 15:1||Underdrain recommended <br> if < 15 mm/hr||1 to 3||5 to 10||0.5 to 6||No||4m (3m if impermeable liner<br>is used)Building foundation,<br> Underground utilities, drinking<br>water wellhead protection areas||Yes||2 Yr
|-
|-
|'''Perforated pipe system'''
|'''Perforated pipe system'''