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==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
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|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.