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Difference between revisions of "Summary of Bioretention Variants for Permeability of Native Soils and Potential Land use Pollutant Loading"

(Created page with "<center>'''Cost Components for Bioretention Practicesperformance'''</center> <table class="sortable" border=2> <tr> <th>Implementation Stage</th> <th>Primary Cost Component...")
 
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<center>'''Cost Components for Bioretention Practicesperformance'''</center>
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<center>'''Summary of Bioretention Variants for Permeability of Native Soils and Potential Land use Pollutant Loading''' </center>
  
  
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<table class="sortable" border=2>
 
<table class="sortable" border=2>
 
<tr>
 
<tr>
−
<th>Implementation Stage</th>
+
<th>Bioretention Type </th>
−
<th>Primary Cost Components </th>
+
<th>Variant</th>
−
<th>Basic Cost Estimate</th>
+
<th>Underlying Soil Performance Criteria </th>
−
<th>Other Considerations</th>
 
 
</tr>
 
</tr>
 
<tr>
 
<tr>
−
<center><td Rowspan="3">Site Preparation</td></center>
+
<td>Filtration/Partial Recharge Facility</td>
−
<td>Tree & plant protection</td>
+
<td>No under-drain</td>
−
<td>Protection Cost ($/area) x Affected Area</td>
+
<td>Higher recharge potential (facility drain time without under-drain is < 48 hours) </td>
−
<td>Removal of existing structures, topsoil removal and stockpiling</td>
 
 
</tr>
 
</tr>
 +
<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>Clearing & grubbing</td>
 
−
<td>Clearing Cost ($/area) x Affected Area</td>
 
−
<td>Removal of existing structures, topsoil removal and stockpiling</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>Topsoil salvage</td>
 
−
<td>Clearing Cost ($/area) x Affected Area</td>
 
−
<td>Removal of existing structures, topsoil removal and stockpiling</td>
 
 
</tr>
 
</tr>
−
 
+
<td>Filtration Only Facility</td>
−
<tr>
+
<td>Under-drain with liner</td>
−
<td rowspan="2">Site Formation</td>
+
<td>Hot Spot Treatment</td>
−
<td>Excavation / grading</td>
 
−
<td>4-ft Depth Excavation Cost ($/acre) x Area (acre)</td>
 
−
<td>Soil & rock fill material, tunneling</td>
 
−
</tr>
 
−
<tr>
 
−
<td>Hauling material offsite</td>
 
−
<td>Excavation Cost x (% of Material to be hauled away)</td>
 
−
<td>Soil & rock fill material, tunneling</td>
 
−
</tr>
 
−
<tr>
 
−
<td rowspan="4">Structural Components</td>
 
−
<td>Under-drains</td>
 
−
<td>Under-drain cost ($/lineal foot) x length of device</td>
 
−
<td>Pipes, catch-basins, manholes, valves</td>
 
−
</tr>
 
−
<tr>
 
−
<td>Inlet structure</td>
 
−
<td>($/structure) or ($/curb cut)</td>
 
−
<td>Pipes, catch-basins, manholes, valves</td>
 
−
</tr>
 
−
<tr>
 
−
<td>Outlet structure</td>
 
−
<td>($/structure)</td>
 
−
<td>Pipes, catch-basins, manholes, valves</td>
 
−
</tr>
 
−
<tr>
 
−
<td>Liner</td>
 
−
<td>Liner cost ($/square yard) x area of device)</td>
 
−
<td>Pipes, catch-basins, manholes, valves</td>
 
−
</tr>
 
−
 
 
−
 
 
−
 
 
−
<tr>
 
−
<td rowspan="4">Site Restoration</td>
 
−
<td>Filter strip</td>
 
−
<td>Sod cost ($/square foot) x filter strip area</td>
 
−
<td>Tree protection, soil amendments, seed bed preparation, trails</td>
 
−
</tr>
 
−
<tr>
 
−
<td>Soil preparation</td>
 
−
<td>Topsoil or amendment cost ($/acre) x Area (acre)</td>
 
−
<td>Tree protection, soil amendments, seed bed preparation, trails</td>
 
−
</tr>
 
−
 
 
−
<tr>
 
−
<td>Seeding</td>
 
−
<td>Seeding Cost ($/acre) x Seeded Area (acre)</td>
 
−
<td>Tree protection, soil amendments, seed bed preparation, trails</td>
 
−
</tr>
 
−
 
 
−
<tr>
 
−
<td>Planting / transplanting</td>
 
−
<td>Planting Cost ($/acre) x Planted Area (acre)</td>
 
−
<td>Tree protection, soil amendments, seed bed preparation, trails</td>
 
−
</tr>
 
−
 
 
  
  
 +
</table>
  
−
<tr>
 
−
<td rowspan="5">Annual Operation, Maintenance, and Inspection</td>
 
−
<td>Debris removal</td>
 
−
<td>Removal Cost ($/acre) x Area (acre) x Frequency</td>
 
−
<td>Vegetation maintenance, cleaning of structures</td>
 
−
</tr>
 
−
<tr>
 
−
<td>Sediment removal</td>
 
−
<td>Removal Cost ($/acre) x Area (acre) x Frequency</td>
 
−
<td>Vegetation maintenance, cleaning of structures</td>
 
−
</tr>
 
−
<tr>
 
−
<td>Weed control</td>
 
−
<td>Labor cost ($/hour) x Hours per visit x Frequency</td>
 
−
<td>Vegetation maintenance, cleaning of structures</td>
 
 
</tr>
 
</tr>
 +
<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>Inspection</td>
 
−
<td>Inspection Cost ($) x Inspection Frequency</td>
 
−
<td>Vegetation maintenance, cleaning of structures</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>Mowing</td>
 
−
<td>Mowing Cost ($) x Mowing Frequency</td>
 
−
<td>Vegetation maintenance, cleaning of structures</td>
 
 
</tr>
 
</tr>
 +
<td>Filtration Only Facility</td>
 +
<td>Under-drain with liner</td>
 +
<td>Hot Spot Treatment</td>
  
  
 
</table>
 
</table>

Revision as of 17:03, 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

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


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