m
m
Line 13: Line 13:
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Biofiltration with underdrain at the bottom (Filtration/Partial Recharge Facility)</td>
+
<td>Biofiltration with underdrain at the bottom<br>(Filtration/Partial Recharge Facility)</td>
 
<td>Underdrain</td>
 
<td>Underdrain</td>
 
<td>Lower recharge potential (facility drain time without underdrain is > 48 hours)</td>
 
<td>Lower recharge potential (facility drain time without underdrain is > 48 hours)</td>
Line 23: Line 23:
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Biofiltration with elevated underdrain (Infiltration/Filtration/Recharge Facility)</td>
+
<td>Biofiltration with elevated underdrain<br>(Infiltration/Filtration/Recharge Facility)</td>
 
<td>Elevated underdrain</td>
 
<td>Elevated underdrain</td>
 
<td>Higher nutrient loadings and/or quantity control</td>
 
<td>Higher nutrient loadings and/or quantity control</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Biofiltration with liner (Filtration Only Facility)</td>
+
<td>Biofiltration with liner<br>(Filtration Only Facility)</td>
 
<td>Underdrain with liner</td>
 
<td>Underdrain with liner</td>
 
<td>Hot Spot Treatment</td>
 
<td>Hot Spot Treatment</td>

Revision as of 14:53, 13 February 2014

Summary of Bioretention Variants for Permeability of Native Soils and Potential Land use Pollutant Loading
(Link to this table)

Bioretention Type Variant Underlying Soil Performance Criteria
Bioinfiltration
(Infiltration/Recharge Facility)
No underdrain Higher recharge potential (facility drain time without underdrain is 48 hours or less)
Biofiltration with underdrain at the bottom
(Filtration/Partial Recharge Facility)
Underdrain Lower recharge potential (facility drain time without underdrain is > 48 hours)
Biofiltration with internal water storage underdrain Lower recharge potential (facility drain time without underdrain is >48 hours)
Biofiltration with elevated underdrain
(Infiltration/Filtration/Recharge Facility)
Elevated underdrain Higher nutrient loadings and/or quantity control
Biofiltration with liner
(Filtration Only Facility)
Underdrain with liner Hot Spot Treatment