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* 0.4 for [[stone]]
* 0.4 for [[stone]]
|-
|-
| [[Bioretention: Filter media|Filter media]] (''d<sub>m</sub>'')
| [[Bioretention: Filter media|Filter media]] (''d<sub>f</sub>'')
| colspan="2" |
| colspan="2" |
* 300 mm to support turf grass and accept only roof runoff
* 300 mm to support turf grass and accept only roof runoff