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Read more about [[Bioretention]] here.
Read more about [[Bioretention]] here.
==Permeable Pavement==
{{Clickable button|[[File:ON. MTO perm.PNG|120 px|link=https://cvc.ca/wp-content/uploads/2014/01/Campbellville-Case-Study_Final.pdf]]}}
This study, conducted by CVC was focused on work completed at the Ontario Ministry of Transportation's (MTO) carpool parking lot in Campbellville adjacent to Guelph Line and Highway 401 in the fall of 2007. The site was selected by the MTO as an ideal location to test the use of pervious concrete mix ([[Permeable Pavement]]) as a substitute for conventional asphalt or (impervious) concrete for the parking surface. Permeability monitoring was conducted for 22 months following construction. At this site sand use did not significantly reduce permeability of the concrete; however, the amount of traffic did. High use traffic lanes decreased permeability over time compared to parking spaces. It is presumed that the additional loading compacts debris into pore spaces. Maintenance techniques (annual sweeping) improved permeability, but did not restore the permeability to just after initial installation levels. It is important to note that even after 22 months of monitoring, permeability was still higher than 299 mm/hr (the maximum rainfall rate expected at the site). So even with some loss in permeability, the site would still have performed well during intense rainfall events. Learn more about this study sight by clicking the button above.
{{Clickable button|[[File:CVC head office.PNG|120 px|link=http://www.creditvalleyca.ca/wp-content/uploads/2016/06/CaseStudy_CVC_Final.pdf]]}}
This report by CVC highlights how the CA (per its mandate) and its member municipalities approached the construction of an addition to the CVC head office as an opportunity to showcase a green building that effectively manages water resources on the site in keeping with the Credit River Water Management Strategy. The report goes over how CVC created the new construction as a demonstration site that showcased LID practices within a typical commercial office setting. It also allowed the CA the opportunity to ‘learn by doing’ and closely monitor the performance and maintenance of LID practices and communicated the ways to improve the design, installation and management of LID
features. Monitoring found that all LID practices ([[Permeable pavements]], [[grass swaless]], and a [[Rainwater harvesting]] system) at CVC's Head Office reduces the runoff volume of rain events by 63%. This is an improvement from typical parking lots where the majority of runoff travels directly into the storm sewers and into our streams and Lake Ontario. The site also removes 81% of total suspended solids. Learn mroe about this work by clickign the button above.
Read more about [[Permeable pavement]] here.
==Stormwater Tree Trenches==
==Stormwater Tree Trenches==
Read more about [[Stormwater Tree Trenches]] here.
Read more about [[Stormwater Tree Trenches]] here.
==Wetlands==
==Wetlands==
Read more about [[Rain gardens]] here.
Read more about [[Rain gardens]] here.
==Bioswales==
{{Clickable button|[[File:Ppg brampton.PNG|120 px|link=https://sustainabletechnologies.ca/app/uploads/2015/06/Biofilter_PPGCaseStudy_May2015.pdf]]}}
This report by TRCA's STEP group highlights how in July of 2014, the City of Brampton constructed two [[Bioswales]] featuring impermeable liners within the road right-of-way of County Court Boulevard, a medium traffic collector road that services residential, institutional and parkland areas in the neighbourhood. In November 2014, simulated storm event tests were completed to verify that each swale was functioning as intended and examine runoff reduction performance during a medium-sized rain event (i.e. approx. 12 mm, 40 minute rain storm). Results show that East and West Swales retained 32% and 10% of the water, respectively. This suggests that substantial runoff volume reduction benefits can be provided by swales designed with impermeable liners. To learn more about these swale configurations, and their performance click the button above.
Read more about [[Rain gardens]] here.
==Construction Considerations==
==Construction Considerations==