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Line 17: [[File:Example1.jpg|thumb|upright=0.6|Urban parkettes may look small, but they havethe potential to treat a large surface area of road. Typical ratiosof impervious drainage area to bioretention range from 5:1 to15:1. (Source: CVC)]]
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[[File:Example3.jpg|thumb|upright=0.6|The road surface (left) contributes significantly more stormwater pollutants than the parkland area (right). Toachieve maximum watershed benefit a designer could consider accepting runoff from this external area. (Source: CVC)]]
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[[File:Example.jpg|thumb|upright=0.6|The bioretention area installed at O’Connor Park in Mississauga is part of a stormwater management system that treats parking lot runoff prior to discharging to a local wetland. (Source: CVC)]]
[[File:Example.jpg|thumb|upright=0.6|The bioretention area installed at O’Connor Park in Mississauga is part of a stormwater management system that treats parking lot runoff prior to discharging to a local wetland. (Source: CVC)]]
[[File:Example1.jpg|thumb|upright=0.6|Urban parkettes may look small, but they have the potential to treat a large surface area of road. Typical ratios
of impervious drainage area to bioretention range from 5:1 to 15:1. (Source: CVC)]]
[[File:Example3.jpg|thumb|upright=0.6|The road surface (left) contributes significantly more stormwater pollutants than the parkland area (right). To
achieve maximum watershed benefit a designer could consider accepting runoff from this external area. (Source: CVC)]]
Parks range from simple parcels of municipal property to complex outdoor recreational facilities that include parking, sidewalks, trails, sports fields, field houses, operations facilities, and washrooms. Each distinct area of your site can be a source for runoff (referred to as a ‘source area’). These areas should be targeted when introducing LID in your park.
Parks range from simple parcels of municipal property to complex outdoor recreational facilities that include parking, sidewalks, trails, sports fields, field houses, operations facilities, and washrooms. Each distinct area of your site can be a source for runoff (referred to as a ‘source area’). These areas should be targeted when introducing LID in your park.
===Accepting drainage from off-site areas===
===Accepting drainage from off-site areas===
Does municipally owned land drain into your retrofit site? If so, this is an opportunity to provide stormwater controls for these areas.
Does municipally owned land drain into your retrofit site? If so, this is an opportunity to provide stormwater controls for these areas.
===Source Areas===
===Source Areas===
The LID option that best fits your site will depend what types of source areas are present. Source areas may include:
The LID option that best fits your site will depend what types of source areas are present. Source areas may include:
* Active use areas
* Active use areas