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→STEP Training
===STEP Training===
===STEP Training===
Click the button on the left to register for training on SWM pond inspection and maintenance and the button on the right to learn about wet ponds:
Click the button on the left to register for training on SWM pond inspection and maintenance and the button on the right to learn about wet ponds:
{{Clickable button|[[File:Screenshot 2025-08-29 101010.png|thumb|130px|link=https://sustainabletechnologies.ca/lid-swm-inspection-maintenance-training/]]}} {{Clickable button|[[File:Screenshot 2025-08-29 101218.png|thumb|130 px|link=https://wiki.sustainabletechnologies.ca/wiki/SWM_ponds]]}}
{{Clickable button|[[File:Screenshot 2025-08-29 101010.png|150px|link=https://sustainabletechnologies.ca/lid-swm-inspection-maintenance-training/]]}} {{Clickable button|[[File:Screenshot 2025-08-29 101218.png|150 px|link=https://wiki.sustainabletechnologies.ca/wiki/SWM_ponds]]}}
==Planning considerations==
==Planning considerations==
*visible sediment accumulation in the bottom of the pond or around the high water line of the pond - may indicate need for sediment removal
*visible sediment accumulation in the bottom of the pond or around the high water line of the pond - may indicate need for sediment removal
A field data sheet for the inspection of constructed wetlands is available below. You can download (downward facing arrow on the top righthand side) and print (Printer emoticon on top right hand side) the Dry Pond or Dry Extended Detention Basin Inspection and Maintenance Checklist developed by the City of Ontario, Ohio<ref>City of Ontario, Ohio. https://ontarioohio.org/stormwater-management/</ref>.
A field data sheet for the inspection of constructed wetlands is available below. You can download (downward facing arrow on the top righthand side) and print (Printer emoticon on top right hand side) the the [https://sustainabletechnologies.ca/app/uploads/2018/04/SWMFG2016_Guide_April-2018.pdf Pond/Wetland Maintenance and Inspection Form] developed by Toronto and Region Conservation Authority (TRCA) and CH2M Hill Canada.
<pdf width="450" height="600">File:SWMFG2016 Guide April-2018.pdf</pdf>
<pdf width="450" height="600">File:SWMFG2016 Guide April-2018.pdf</pdf>
Accurate forecasting of sediment accumulation in stormwater facilities helps managers schedule and budget for maintenance. MOE (2003) recommends SWMFs be cleaned when the TSS removal efficiency declines below 5% of its original design criterion<ref name="MOE"></ref>. For example, if a dry pond is designed to remove 60% of TSS, an efficiency reduction to 55% triggers the need for sediment removal. The rate of sediment accumulation differs for each facility, and depends on factors such as the characteristics of drainage area (e.g., land use; level of imperviousness; upstream construction activities and effectiveness of sediment and erosion control practices) and municipal practices (e.g. frequency of road/catchbasin cleaning, sanding/salting practices).
Accurate forecasting of sediment accumulation in stormwater facilities helps managers schedule and budget for maintenance. MOE (2003) recommends SWMFs be cleaned when the TSS removal efficiency declines below 5% of its original design criterion<ref name="MOE"></ref>. For example, if a dry pond is designed to remove 60% of TSS, an efficiency reduction to 55% triggers the need for sediment removal. The rate of sediment accumulation differs for each facility, and depends on factors such as the characteristics of drainage area (e.g., land use; level of imperviousness; upstream construction activities and effectiveness of sediment and erosion control practices) and municipal practices (e.g. frequency of road/catchbasin cleaning, sanding/salting practices).
To assess whether a SWMF needs sediment removal, three factors are required:
To assess whether a SWMF needs sediment removal, three factors are required:
STEP's [https://sustainabletechnologies.ca/app/uploads/2018/04/SWMFG2016_Guide_April-2018.pdf Inspection and Maintenance Guide for Stormwater Management Ponds and Constructed Wetlands] (section 4.5.1: Forecasting Based on Sediment Depth Measurements) describe methods for forecasting the need for sediment removal and provides a sample forecasting exercise.
STEP's [https://sustainabletechnologies.ca/app/uploads/2018/04/SWMFG2016_Guide_April-2018.pdf Inspection and Maintenance Guide for Stormwater Management Ponds and Constructed Wetlands] (section 4.5.1: Forecasting Based on Sediment Depth Measurements) describe methods for forecasting the need for sediment removal and provides a sample forecasting exercise.
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