Changes

*An [[underdrain]] to redistribute or remove excess water  

*An [[underdrain]] to redistribute or remove excess water  

*An [[Liner|impermeable membrane]] to prevent infiltration to soils below

*An [[Liner|impermeable membrane]] to prevent infiltration to soils below

==Planning considerations==

==Planning considerations==

<h3>Space</h3>  

<h3>Space</h3>  

<h3>Sizing</h3>

<h3>Sizing</h3>

{{:Bioretention: Sizing and modeling}}  

{{:Bioretention: Sizing and modeling}}  

<br>If additional storage volume is desired beneath an underdrain pipe, this may be sized as an [[Infiltration:_Sizing_and_modeling|infiltration trench]].  

If additional storage volume is desired beneath an underdrain pipe, this may be sized as an [[Infiltration:_Sizing_and_modeling|infiltration trench]].  

==Construction==

==Construction==

{{:Bioretention: Construction}}

{{:Bioretention: Construction}}

<h3>In Ontario</h3>

<h3>In Ontario</h3>

<strong>City of Mississauga</strong><br>

<strong>City of Mississauga</strong><br>

The City of Mississauga has a stormwater management credit program which includes RWH as one of their recommended site strategies[https://www.mississauga.ca/portal/services/credit-program].  

The City of Mississauga has a stormwater management credit program which includes RWH as one of their recommended site strategies [https://www.mississauga.ca/portal/services/credit-program].  

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<h3>LEED BD + C v. 4</h3>

<h3>LEED BD + C v. 4</h3>