m |
m |
||
Line 8: | Line 8: | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td>Bioinfiltration (Infiltration/Recharge Facility)</td> | + | <td>Bioinfiltration<br>(Infiltration/Recharge Facility)</td> |
<td>No underdrain</td> | <td>No underdrain</td> | ||
<td>Higher recharge potential (facility drain time without underdrain is 48 hours or less)</td> | <td>Higher recharge potential (facility drain time without underdrain is 48 hours or less)</td> | ||
Line 18: | Line 18: | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
− | <td> | + | <td>Biofiltration with internal water storage</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> |
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 |