Changes

*[[Bioretention]] technologies have been shown to effectively trap sediment from parking lots, public roads and residential areas <ref>Sustainable Technologies Evaluation Program. 2019. Comparative Performance Assessment of Bioretention in Ontario. https://sustainabletechnologies.ca/app/uploads/2019/10/STEP_Bioretention-Synthesis_Tech-Brief-New-Template-2019-Oct-10.-2019.pdf</ref>

*[[Bioretention]] technologies have been shown to effectively trap sediment from parking lots, public roads and residential areas <ref>Sustainable Technologies Evaluation Program. 2019. Comparative Performance Assessment of Bioretention in Ontario. https://sustainabletechnologies.ca/app/uploads/2019/10/STEP_Bioretention-Synthesis_Tech-Brief-New-Template-2019-Oct-10.-2019.pdf</ref>

*[[Permeable pavements]] can filter runoff through the surface pores or media between pavers, as well as through the bedding and base layers. Most of the [[sediment]] directed onto the pavements is trapped near the surface where it can be more easily accessed for cleaning.

*[[Permeable pavements]] can filter runoff through the surface pores or media between pavers, as well as through the bedding and base layers. Most of the [[sediment]] directed onto the pavements is trapped near the surface where it can be more easily accessed for cleaning.

*[[Filtration Manufactured Treatment Devices]] such as [https://sustainabletechnologies.ca/app/uploads/2020/06/High-rate-treatment-bioretention-filter-tech-brief.pdf the Filterra® high flow curb inlet filtration MTD] have achieved 80% TSS removal for events with influent TSS concentrations above 100 mg/L.

*[[Filtration Manufactured Treatment Devices]] such as [https://sustainabletechnologies.ca/app/uploads/2020/06/High-rate-treatment-bioretention-filter-tech-brief.pdf the Filterra® high flow curb inlet filtration MTD] have achieved 80% TSS removal during runoff events.

*[[Stormwater planters]]

*[[Stormwater planters]]

*[[Pretreatment]]

*[[Pretreatment]] options such as [[Vegetated filter strips|vegetated filter strips]] which function by slowing runoff velocities and filtering out pollutants can be combined with other stormwater treatment systems in a treatment train approach.

==Maintenance Considerations==

==Maintenance Considerations==

Clogging may occur when solid particles form a film on top of the filter or accumulate within the media channels to the point where the channels become occluded. Clogging can decrease the effectiveness of a filter. As the filter becomes [[clogging|clogged]], higher pressure is needed to drive stormwater through the filter, until a point is reached at which flow through the treatment system must be redirected to another flow path (usually a [[overflow|bypass]] within or upstream of the system).  

Clogging may occur when solid particles form a film on the filter's surface or accumulate within the media channels to the point where the channels become occluded. Clogging can decrease the effectiveness of a filter. As the filter becomes [[clogging|clogged]], higher pressure is needed to drive stormwater through the filter, until a point is reached at which flow through the treatment system must be redirected to another flow path (usually a [[overflow|bypass]] within or upstream of the system).  

==Key system design parameters==

==Key system design parameters==