Changes

==Design==

==Design==

{|{| class="wikitable"

{|{| class="wikitable"

|+Design parameters for dry ponds <ref name="MOE">Ontario Ministry of Environment. (2003). Stormwater Management Planning and Design Manual. Retrieved January 15, 2017, from https://www.ontario.ca/document/stormwater-management-planning-and-design-manual/stormwater-management-plan-and-swmp-design</ref>

|+Design parameters for extended detention<ref name="MOE">Ontario Ministry of Environment. (2003). Stormwater Management Planning and Design Manual. Retrieved January 15, 2017, from https://www.ontario.ca/document/stormwater-management-planning-and-design-manual/stormwater-management-plan-and-swmp-design</ref>

!Element  

!Element  

!Design Objective  

!Design Objective  

|style="text-align: left|Minimum 3 m above maximum water quality/erosion control water level

|style="text-align: left|Minimum 3 m above maximum water quality/erosion control water level

|}

|}

The bottom of a dry pond should be flat to encourage uniform ponding and infiltration across the entire surface. Recommended tolerance on base levels 10 mm in 3m.  

The bottom of a dry pond should be flat to encourage uniform ponding and infiltration across the entire surface. Recommended tolerance on base levels 10 mm in 3m.