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<td>Filtration/Partial Recharge Facility</td>
 
<td>Filtration/Partial Recharge Facility</td>
 
<td>No under-drain</td>
 
<td>No under-drain</td>
<td>Higher recharge potential (facility drain time without under-drain is < 48 hours) </td>
+
<td>Higher recharge potential (facility drain time without under-drain is 48 hours)</td>
 
</tr>
 
</tr>
<td>Infiltration/Recharge Facility </td>
+
<td>Infiltration/Recharge Facility</td>
<td>Under-drain</td>
 
<td>Lower recharge potential (facility drain time without under-drain is > 48 hours)</td>
 
<tr>
 
</tr>
 
<td>Infiltration/Filtration/Recharge Facility </td>
 
<td>Elevated under-drain</td>
 
<td>Higher nutrient loadings and/or quantity control</td>
 
<tr>
 
</tr>
 
<td>Filtration Only Facility</td>
 
<td>Under-drain with liner</td>
 
<td>Hot Spot Treatment</td>
 
 
 
 
 
</table>
 
 
 
</tr>
 
<td>Infiltration/Recharge Facility </td>
 
 
<td>Under-drain</td>
 
<td>Under-drain</td>
 
<td>Lower recharge potential (facility drain time without under-drain is > 48 hours)</td>
 
<td>Lower recharge potential (facility drain time without under-drain is > 48 hours)</td>

Revision as of 17:06, 27 December 2012

Summary of Bioretention Variants for Permeability of Native Soils and Potential Land use Pollutant Loading



Bioretention Type Variant Underlying Soil Performance Criteria
Filtration/Partial Recharge Facility No under-drain Higher recharge potential (facility drain time without under-drain is 48 hours)
Infiltration/Recharge Facility Under-drain Lower recharge potential (facility drain time without under-drain is > 48 hours)
Infiltration/Filtration/Recharge Facility Elevated under-drain Higher nutrient loadings and/or quantity control
Filtration Only Facility Under-drain with liner Hot Spot Treatment