View source for Inspection and Maintenance: Bioretention & Bioswales

==Inspection and Testing Framework==

[[File:Visual indicator bioretention.PNG|thumb|300px|Example of a visual indicator to be used when assessing the condition of a given LID feature. Here we see excessive sediment accumulation at the [[inlet]]/[[curb cut]] of a bioretention cell. 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;"
|+'''Visual Indicators Framework - Bioretention/Swales'''
|-
!<br>'''Component'''
!<br>'''Indicators'''
!<br>'''Construction Inspection'''
!<br>'''Assumption Inspection'''
!<br>'''Routine Operation Inspection'''
!<br>'''Verification Inspection'''
|-
|rowspan="2"|'''[[Bioretention: Sizing|Contributing Drainage Area]]'''
|-
|CDA condition 
|x
|x
|x
|x
|-
|rowspan="5"|'''[[Inlets|Inlet]]'''
|-
|Inlet/Flow Spreader Structural Integrity
|
|x
|x
|x
|-
|Inlet/Flow Spreader Structural Integrity
|x
|x
|x
|x
|- 
|Pretreatment sediment accumulation 
|x
|x
|x
|
|-
|Inlet erosion
|
|x
|x
|
|-
|rowspan="4"|'''Perimeter'''
|-
|BMP dimensions
|x
|x
|
|x
|-
|Side slope erosion
|
|x
|x
|
|-
|Surface ponding area  
|x
|x
|
|x
|-
|rowspan="9"|'''[[Bioretention: Filter media|Filter Bed]]'''
|-
|Standing water 
|
|x
|x
|x
|-
|Trash
|
|x
|x
|
|-
|Filter bed erosion
|
|x
|x
|
|-
|Mulch depth 
|x
|x
|x
|x
|-
|Filter bed sediment accumulation
|
|x
|x
|x
|-
|Surface ponding depth
|x
|x
|
|x
|-
|Filter bed surface sinking 
|
|x
|x
|x
|-
|Check dams
|x
|x
|x
|x
|-
|rowspan="4"|'''[[Vegetation|Planting Area]]'''
|-
|Vegetation cover
|x
|x
|x
|x
|-
|Vegetation condition 
|
|x
|x
|
|-
|Vegetation composition
|x
|x
|x
|
|-
|rowspan="4"|'''[[Overflow|Outlet]]'''
|-
|Monitoring well condition
|x
|x
|x
|x
|-
|Sub-drain/Perforated pipe obstruction 
|
|x
|
|x
|-
|Overflow outlet obstruction 
|x
|x
|x
|x
|-
|}<br>
</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'''
!<br>'''Indicators'''
!<br>'''Construction Inspection'''
!<br>'''Assumption Inspection'''
!<br>'''Routine Operation Inspection'''
!<br>'''Verification Inspection'''
|-
|rowspan="6"|'''Testing Indicators'''
|-
|Soil characterization testing
|x
|x
|
|(x)
|-
|Sediment accumulation testing 
|x
|x
|x
|x
|-
|Surface infiltration rate testing
|
|x
|
|(x)
|-
|Natural or simulated storm event testing
|
|x
|
|(x)
|-
|Continuous monitoring
|
|x
|
|(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>
|-
|}