Line 22: |
Line 22: |
| !<br>'''Test''' | | !<br>'''Test''' |
| |- | | |- |
| |rowspan="9"|'''[[Bioretention]] / [[Bioswales]] / [[Dry swale]]''' | | |rowspan="10"|'''[[Bioretention]] / [[Bioswales]] / [[Dry swale]]''' |
| |- | | |- |
| |Texture** | | |Texture** |
Line 31: |
Line 31: |
| |3 to 10% by dry weight** | | |3 to 10% by dry weight** |
| |Walkley-Black method when OM <7.5% or Loss On Ignition (LOI) method when OM ≥7.5%*** | | |Walkley-Black method when OM <7.5% or Loss On Ignition (LOI) method when OM ≥7.5%*** |
| |
| |
| |rowspan="5"|'''[[Inlets|Inlet]]'''
| |
| |- | | |- |
| |Inlet/Flow Spreader Structural Integrity | | |Soil pH |
| | | | |6.0 to 7.8 |
| |x | | |pH of a Saturated Paste*** |
| |x
| |
| |x
| |
| |- | | |- |
| |Inlet/Flow Spreader Structural Integrity | | |Cationic Exchange Capacity (CEC) |
| |x | | |>10 meq/100 g |
| |x
| | |Cationic Exchange Capacity Test |
| |x
| |
| |x
| |
| |-
| |
| |Pretreatment sediment accumulation
| |
| |x
| |
| |x
| |
| |x
| |
| | | |
| |- | | |- |
| |Inlet erosion | | |Phosphorus**** |
| | | | |12 to 40 ppm |
| |x | | |Extractable Phosphorus |
| |x
| |
| |
| |
| |- | | |- |
| |rowspan="4"|'''Perimeter''' | | |Soluble Salts***** |
| | |≤2.0 mS/cm (0.2 S/m) |
| | |Electrical Conductivity of a Soil-Water Slurry (2:1 water to soil ratio by volume)*** |
| |- | | |- |
| |BMP dimensions | | |Depth |
| |x | | | +/- 10% of design specification |
| |x | | |Soil Cores, Test Pits or Cone Penetration Tests |
| |
| |
| |x
| |
| |- | | |- |
| |Side slope erosion | | |Compaction |
| | | | |Surface Resistance: ≤110 PSI; Sub-surface Resistance: ≤260 PSI Bulk Density: ≤1.60 g/cm<sup>3</sup> |
| |x | | |Cone Penetration Tests or Bulk Density Tests |
| |x
| |
| |
| |
| |- | | |- |
| |Surface ponding area | | |Permeability |
| |x | | |i ≥25 mm/h (KS ≥ 1 x 10<sup>-5</sup> cm/s); and i ≤203 mm/h (K<sub>S</sub> ≤ 0.02 cm/s). |
| |x | | |Surface Infiltration Rate Tests |
| |
| |
| |x
| |
| |- | | |- |
| |rowspan="9"|'''[[Bioretention: Filter media|Filter Bed]]''' | | |rowspan="9"|'''[[Enhanced swale]] (topsoil)''' |
| |- | | |- |
| |Standing water | | |Texture |
| | | | |Same soil texture classification as specified in the final design or recorded on the as-built drawing |
| |x | | |Particle-Size Distribution (PSD), or % Sand/Silt/Clay (i.e., Soil Texture) plus Sand Fraction |
| |x | | |- |
| |x | | |Organic Matter (OM)** |
| | |5 to 10% by dry weight |
| | |Walkley-Black method when OM <7.5% or Loss On Ignition (LOI) method when OM ≥7.5%*** |
| |- | | |- |
| |Trash | | |Soil pH |
| | | | |6.0 to 7.8 |
| |x | | |pH of a Saturated Paste*** |
| |x
| |
| |
| |
| |- | | |- |
| |Filter bed erosion | | |Phosphorus**** |
| | | | |12 to 40 ppm |
| |x | | |Extractable Phosphorus |
| |x
| |
| |
| |
| |- | | |- |
| |Mulch depth | | |Soluble Salts***** |
| |x | | |≤2.0 mS/cm (0.2 S/m) |
| |x | | |Electrical Conductivity of a Soil-Water Slurry (2:1 water to soil ratio by volume)*** |
| |x
| |
| |x
| |
| |- | | |- |
| |Filter bed sediment accumulation | | |Depth |
| | | | | +/- 10% of design specification |
| |x | | |Soil Cores, Test Pits |
| |x
| |
| |x
| |
| |- | | |- |
| |Surface ponding depth | | |Compaction |
| |x
| | |Surface Resistance: ≤110 PSI; Sub-surface Resistance: Use soil texture class and Table 8.3 to determine maximum acceptable value; Bulk Density: Use PSD to interpolate maximum bulk density value from Figure 8.7. |
| |x
| | |Cone Penetration Tests or Bulk Density Tests |
| | | |
| |x | |
| |- | | |- |
| |Filter bed surface sinking | | |Permeability |
| |
| | |i ≥15 mm/h (K<sub>S</sub> ≥ 1 x 10<sup>-6</sup> cm/s) |
| |x
| | |Surface Infiltration Rate Tests |
| |x | |
| |x | |
| |- | | |- |
| |Check dams | | |rowspan="9"|'''[[Vegetated filter strips]] and [[Absorbent landscapes|Soil Amendment Areas]] (topsoil)''' |
| |x | |
| |x | |
| |x
| |
| |x
| |
| |- | | |- |
| |rowspan="4"|'''[[Vegetation|Planting Area]]''' | | |Texture |
| | |Same soil texture classification as specified in the final design or recorded on the as-built drawing |
| | |Particle-Size Distribution (PSD), or % Sand/Silt/Clay (i.e., Soil Texture) plus Sand Fraction |
| |- | | |- |
| |Vegetation cover | | |Organic Matter (OM)** |
| |x | | |5 to 10% by dry weight |
| |x | | |Walkley-Black method when OM <7.5% or Loss On Ignition (LOI) method when OM ≥7.5%*** |
| |x
| |
| |x
| |
| |- | | |- |
| |Vegetation condition | | |Soil pH |
| | | | |6.0 to 7.8 |
| |x | | |pH of a Saturated Paste*** |
| |x
| |
| |
| |
| |- | | |- |
| |Vegetation composition | | |Phosphorus**** |
| |x | | |12 to 40 ppm |
| |x
| | |Extractable Phosphorus |
| |x
| |
| | | |
| |- | | |- |
| |rowspan="4"|'''[[Overflow|Outlet]]''' | | |Soluble Salts***** |
| | |≤2.0 mS/cm (0.2 S/m) |
| | |Electrical Conductivity of a Soil-Water Slurry (2:1 water to soil ratio by volume)*** |
| |- | | |- |
| |Monitoring well condition | | |Depth |
| |x | | | +/- 10% of design specification |
| |x | | |Soil Cores, Test Pits |
| |x
| |
| |x
| |
| |- | | |- |
| |Sub-drain/Perforated pipe obstruction | | |Compaction |
| |
| | |Surface Resistance: ≤110 PSI; Sub-surface Resistance: Use soil texture class and Table 8.3 to determine maximum acceptable value; Bulk Density: Use PSD to interpolate maximum bulk density value from Figure 8.7. |
| |x
| | |Cone Penetration Tests or Bulk Density Tests |
| |
| |
| |x | |
| |- | | |- |
| |Overflow outlet obstruction | | |Permeability |
| |x | | |i ≥15 mm/h (K<sub>S</sub> ≥ 1 x 10<sup>-6</sup> cm/s) |
| |x | | |Surface Infiltration Rate Tests |
| |x
| |
| |x
| |
| |- | | |- |
| |}<br> | | |rowspan="9"|'''[[Green roof]] (growing media)''' |
| </br>
| |
| [[File:Soil testing indicators.PNG|thumb|300px|The image above shows a manual soil corer, a split soil core sampler kit which preserves the soil sample for further testing (i.e., bulk density) and acrylic core sample tubes. All examples of tools to be use for soil characterization testing. Source: (TRCA, 2016).<ref>STEP. 2016. Low Impact Development Stormwater Management Practice Inspection and Maintenance Guide. https://sustainabletechnologies.ca/app/uploads/2016/08/LID-IM-Guide-2016-1.pdf</ref>.]]
| |
| | |
| {| class="wikitable" style="width: 900px;"
| |
| |+'''Testing Indicators Framework - Bioretention/Swales''' | |
| |- | | |- |
| !<br>'''Component'''
| | |Texture |
| !<br>'''Indicators'''
| | |Same soil texture classification as specified in the final design or recorded on the as-built drawing |
| !<br>'''Construction Inspection'''
| | |Particle-Size Distribution (PSD), or % Sand/Silt/Clay (i.e., Soil Texture) plus Sand Fraction |
| !<br>'''Assumption Inspection'''
| |
| !<br>'''Routine Operation Inspection'''
| |
| !<br>'''Verification Inspection'''
| |
| |- | | |- |
| |rowspan="6"|'''Testing Indicators''' | | |Organic Matter (OM)** |
| | |5 to 10% by dry weight |
| | |Walkley-Black method when OM <7.5% or Loss On Ignition (LOI) method when OM ≥7.5%*** |
| |- | | |- |
| |Soil characterization testing | | |Soil pH |
| |x | | |6.0 to 7.8 |
| |x | | |pH of a Saturated Paste*** |
| |
| |
| |(x)
| |
| |- | | |- |
| |Sediment accumulation testing | | |Phosphorus**** |
| |x | | |12 to 40 ppm |
| |x | | |Extractable Phosphorus |
| |x
| |
| |x
| |
| |- | | |- |
| |Surface infiltration rate testing | | |Soluble Salts***** |
| |
| | |≤2.0 mS/cm (0.2 S/m) |
| |x
| | |Electrical Conductivity of a Soil-Water Slurry (2:1 water to soil ratio by volume)*** |
| | | |
| |(x) | |
| |- | | |- |
| |Natural or simulated storm event testing | | |Depth |
| | | | | +/- 10% of design specification |
| |x | | |Soil Cores, Test Pits |
| |
| |
| |(x)
| |
| |- | | |- |
| |Continuous monitoring | | |Compaction |
| | | | |Surface Resistance: ≤110 PSI; Sub-surface Resistance: Use soil texture class and Table 8.3 to determine maximum acceptable value; Bulk Density: Use PSD to interpolate maximum bulk density value from Figure 8.7. |
| |x | | |Cone Penetration Tests or Bulk Density Tests |
| |
| |
| |(x)
| |
| |- | | |- |
| |colspan="7" style="text-align: center;" |'''<u><span title=>Note:''' (x) denotes indicators to be used for Performance Verification inspections only (i.e., not for Maintenance Verification inspections) </span></u> | | |Permeability |
| | |i ≥15 mm/h (K<sub>S</sub> ≥ 1 x 10<sup>-6</sup> cm/s) |
| | |Surface Infiltration Rate Tests |
| |- | | |- |
| |} | | |}<br> |
| | </br> |
|
| |
|
| ==Sediment Accumulation Testing== | | ==Sediment Accumulation Testing== |