Changes

*Treating runoff collected from nearby impervious surfaces}}

*Treating runoff collected from nearby impervious surfaces}}

'''The fundamental components of a bioretention cell are:'''

'''The fundamental components of a bioretention cell are:'''

*a surface ponding area

*A surface ponding area

*a 'filter bed' containing a [[Bioretention: Filter media| filter media]]

*A filter bed containing a [[Bioretention: Filter media| filter media]]

*a water storage layer of [[reservoir aggregate]]

*A water storage layer of [[reservoir aggregate]]

*[[Plant lists|plants]], and  

*[[Plant lists|Plants]], and  

*a finishing surface layer (e.g. [[mulch]] and/or [[stone]])

*A filter bed surface cover layer (e.g. [[mulch]] and/or [[stone]])

'''Additional components may include:'''  

'''Additional components may include:'''  

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

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

*soil [[additives]] intended to enhance nutrient and related water quality pollutant removal

*Filter media [[additives]] intended to enhance nutrient and related water quality pollutant removal

==Planning considerations==

==Planning considerations==