|+ Maximum allowable sediment accumulation (m³/ha) in dry ponds by catchment imperviousness for basic protection (STEP, 2016)<ref>STEP. 2016. Inspection and maintenance guide for stormwater management ponds and constructed wetlands. https://sustainabletechnologies.ca/app/uploads/2018/04/SWMFG2016_Guide_April-2018.pdf</ref> | |+ Maximum allowable sediment accumulation (m³/ha) in dry ponds by catchment imperviousness for basic protection (STEP, 2016)<ref>STEP. 2016. Inspection and maintenance guide for stormwater management ponds and constructed wetlands. https://sustainabletechnologies.ca/app/uploads/2018/04/SWMFG2016_Guide_April-2018.pdf</ref> |