Changes

{|class="wikitable"

{|class="wikitable"

|+  

|+  

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|-

!Installation type

!Installation type

!Depth to high water or bedrock (m)<ref>Minimum depth between the base of the facility and the elevation of the seasonally high water table or top of bedrock</ref>

!Depth to high water or bedrock (m)ⁱ

!Ratio of impervious drainage area to <br>permeable facility footprint area

!Ratio of impervious drainage area to <br>permeable facility footprint area

!Native soil infiltration rate (mm/hr)<ref>Infiltration rate estimates based on measurements of hydraulic conductivity under field saturated conditions at the proposed location and depth of the practice</ref>

!Native soil infiltration rate (mm/hr)ⁱⁱ

!Head (m)<ref>Vertical distance between the inlet and outlet of the LID practice</ref>

!Head (m)ⁱⁱⁱ

!Space % <ref>Percent of open pervious land on the site that is required for the LID practice</ref>

!Space %^iv

!Slope % <ref>Slope at the LID practice location</ref>

!Slope %^v

!Applicable in pollution hotspots <ref>Suitable in pollution hot spots or runoff source areas where land uses or activities have the potential to generate highly contaminated runoff</ref>

!Applicable in pollution hotspots^vi

!Set backs

!Set backs

!Karst<ref>Suitability in areas of karst geologic formations</ref>

!Karst^vii

!Wellhead protection area<ref>| Drinking Water Source Protection wellhead protection area time of travel</ref>

!Wellhead protection area^viii| Drinking Water Source Protection wellhead protection area time of travel

|-

|-

|'''[[Rain barrels]]'''

|'''[[Rain barrels]]'''

|'''[[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*<ref name="example1">May be allowed under special circumstances and if appropriate mitigation actions are taken - please contact your local Source Protection Region (SPR) or Source Protection Area (SPA) for further information. You can find your associated [https://conservationontario.ca/fileadmin/pdf/conservation_authorities_section/SWPSouthernON_EN.pdf SPR/SPA based on your location here] and then visit their [https://conservationontario.ca/conservation-authorities/source-water-protection/source-protection-plans-and-resources site here]</ref>||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^ix||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No||2 yr

|-

|-

|'''[[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)*<ref name="example1" />; 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)^ix; 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)

|-

|-

|'''[[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)*<ref name="example1" />; 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)^ix; Yes (non-infiltrating)||Building Foundation, Trees||No (infiltrating); Yes (non-infiltrating)||2 Yr (infiltrating); None (non-infiltrating)

|-

|-

|'''[[Vegetated filter strips]]'''

|'''[[Vegetated filter strips]]'''

|Not a constraint

|Not a constraint

|4:1 or less||Decompaction if < 15 mm/hr||0 to 1||15 to 20||1 to 5||No*<ref name="example1" />||None||Yes||None

|4:1 or less||Decompaction if < 15 mm/hr||0 to 1||15 to 20||1 to 5||No^ix||None||Yes||None

|-

|-

|'''[[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)*<ref name="example1" />; 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)^ix; Yes (non-infiltrating)||4m-Underground Utilities<br>Drinking Water Wellhead<br>Protection Areas||No (infiltrating); Yes (non-infiltrating)||2 Yr (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*<ref name="example1" />||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^ix||4m- Building Foundation<br>Underground Utilities||No||2 Yr

|-

|-

|'''[[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)*<ref name="example1" />; 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)^ix; 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)

|-

|-

|'''[[Exfiltration trenches]]'''

|'''[[Exfiltration trenches]]'''

|1

|1

|5:1 to 10:1||Not a constraint||1 to 3||0||< 15%||No*<ref name="example1" />||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^ix||4m- Building Foundation<br>Underground Utilities, Trees,<br>Drinking Water Wellhead<br>Protection Areas||No||2 Yr

|-

|-

|'''[[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*<ref name="example1" />||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^ix||4m- Building Foundation<br>Underground Utilities, <br>Drinking Water Wellhead<br>Protection Areas||No||2 yr