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|'''[[Infiltration trenches]] or [[Infiltration chambers]]'''
|'''[[Infiltration trenches]] or [[Infiltration chambers]]'''
|1
|1
|5:1 to 20:1||Not a constraint||1 to 2||0 to 1||<15 %||No<sup>ix</sup>||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No||2 yr
|5:1 to 20:1||Not a constraint||1 to 2||0 to 1||<15 %||No<sup>ix</sup>||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No||2 year - WHPA-B
|-
|-
|'''[[Bioretention]]'''
|'''[[Bioretention]]'''
|1 (infiltrating); Not a constraint (non-infiltrating)
|1 (infiltrating); Not a constraint (non-infiltrating)
|5:1 to 15:1||Decompaction and [[Underdrain|underdrain]] recommended<br>if < 15 mm/hr (infiltrating)||1 to 2||5 to 10||0 to 2||No (infiltrating)<sup>ix</sup>; Yes (non-infiltrating)||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 yr (infiltrating); None (non-infiltrating)
|5:1 to 15:1||Decompaction and [[Underdrain|underdrain]] recommended<br>if < 15 mm/hr (infiltrating)||1 to 2||5 to 10||0 to 2||No (infiltrating)<sup>ix</sup>; Yes (non-infiltrating)||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 year - WHPA-B (infiltrating); None (non-infiltrating)
|-
|-
|'''[[Stormwater planters]]'''
|'''[[Stormwater planters]]'''
|Not a constraint
|Not a constraint
|5:1||Not a constraint||1 to 2||2 to 5||0 to 2||No (infiltrating)<sup>ix</sup>; Yes (non-infiltrating)||Building Foundation, Trees||No (infiltrating); Yes (non-infiltrating)||2 Yr (infiltrating); None (non-infiltrating)
|5:1||Not a constraint||1 to 2||2 to 5||0 to 2||No (infiltrating)<sup>ix</sup>; Yes (non-infiltrating)||Building Foundation, Trees||No (infiltrating); Yes (non-infiltrating)||2 year - WHPA-B (infiltrating); None (non-infiltrating)
|-
|-
|'''[[Vegetated filter strips]]'''
|'''[[Vegetated filter strips]]'''
|'''[[Permeable pavements]]'''
|'''[[Permeable pavements]]'''
|1 (infiltrating); Not applicable (non-infiltrating)
|1 (infiltrating); Not applicable (non-infiltrating)
|0 to 1:1||[[Underdrain]] recommended <br> if < 15 mm/hr (infiltrating)||0.5 to 1||0||1 to 5||No (infiltrating)<sup>ix</sup>; Yes (non-infiltrating)||4m-Underground Utilities<br>Drinking Water Wellhead<br>Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 Yr (infiltrating); None (non-infiltrating)
|0 to 1:1||[[Underdrain]] recommended <br> if < 15 mm/hr (infiltrating)||0.5 to 1||0||1 to 5||No (infiltrating)<sup>ix</sup>; Yes (non-infiltrating)||4m-Underground Utilities<br>Drinking Water Wellhead<br>Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 year - WHPA-B (infiltrating); None (non-infiltrating)
|-
|-
|'''[[Enhanced swales]] (featuring check dams)'''
|'''[[Enhanced swales]] (featuring check dams)'''
|1
|1
|5:1 to 10:1||Decompaction if < 15 mm/hr||1 to 3||5 to 15||0.5 to 6||No<sup>ix</sup>||4m- Building Foundation<br>Underground Utilities||No||2 Yr
|5:1 to 10:1||Decompaction if < 15 mm/hr||1 to 3||5 to 15||0.5 to 6||No<sup>ix</sup>||4m- Building Foundation<br>Underground Utilities||No||2 year - WHPA-B
|-
|-
|'''[[Bioswales]] (Dry swales)'''
|'''[[Bioswales]] (Dry swales)'''
|1 (infiltrating); Not applicable (non-infiltrating)
|1 (infiltrating); Not applicable (non-infiltrating)
|5:1 to 15:1||Decompaction and [[Underdrain|underdrain]] recommended <br> if < 15 mm/hr (infiltrating)||1 to 3||5 to 10||0.5 to 6||No (infiltrating)<sup>ix</sup>; Yes (non-infiltrating)||4m (3m if impermeable liner<br>is used) Building foundation,<br> Underground utilities,<br> Drinking Water Wellhead Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 Yr (infiltrating); None (non-infiltrating)
|5:1 to 15:1||Decompaction and [[Underdrain|underdrain]] recommended <br> if < 15 mm/hr (infiltrating)||1 to 3||5 to 10||0.5 to 6||No (infiltrating)<sup>ix</sup>; Yes (non-infiltrating)||4m (3m if impermeable liner<br>is used) Building foundation,<br> Underground utilities,<br> Drinking Water Wellhead Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 year - WHPA-B (infiltrating); None (non-infiltrating)
|-
|-
|'''[[Exfiltration trenches]]'''
|'''[[Exfiltration trenches]]'''
|1
|1
|5:1 to 10:1||Not a constraint||1 to 3||0||< 15%||No<sup>ix</sup>||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No||2 Yr
|5:1 to 10:1||Not a constraint||1 to 3||0||< 15%||No<sup>ix</sup>||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No||2 year - WHPA-B
|-
|-
|'''[[Stormwater Tree Trenches|Stormwater tree trenches]]'''
|'''[[Stormwater Tree Trenches|Stormwater tree trenches]]'''
|1
|1
|5:1 to 15:1||[[Underdrain]] recommended<br>if < 15 mm/hr||1 to 2||5 to 10||0 to 2||No<sup>ix</sup>||4m- Building Foundation<br>Underground Utilities, <br>Drinking Water Wellhead<br>Protection Areas||No||2 yr
|5:1 to 15:1||[[Underdrain]] recommended<br>if < 15 mm/hr||1 to 2||5 to 10||0 to 2||No<sup>ix</sup>||4m- Building Foundation<br>Underground Utilities, <br>Drinking Water Wellhead<br>Protection Areas||No||2 year - WHPA-B
|}
|}