Changes

* [[Bioswales]]

* [[Bioswales]]

* Perforated pipe systems

* Perforated pipe systems

* [[Permeable paving|Permeable pavement]]

* [[Permeable pavements]]

* [[Soakaways, Infiltration Trenches and Infiltration Chambers Guide|Soakaways]]

* [[Soakaways, Infiltration Trenches and Infiltration Chambers Guide|Soakaways]]

* [[Infiltration chambers]]

* [[Infiltration chambers]]

Consultants are required for large-scale retrofit projects, specifically for the final screening of options, pre-design, detailed design, tender and contract documents, construction supervision and administration, and assumption and verification. Site contractors are also required for large-scale LID retrofits.

Consultants are required for large-scale retrofit projects, specifically for the final screening of options, pre-design, detailed design, tender and contract documents, construction supervision and administration, and assumption and verification. Site contractors are also required for large-scale LID retrofits.

Ideally, contractors should be pre-qualified based on previous experience with similar LID projects.

Ideally, contractors should be pre-qualified based on previous experience with similar LID projects. Remember, the contractor with the lowest bid does not necessarily deliver the best product.

====Intensive public consultation====

====Intensive public consultation====

==Parks==

==Parks==

[[File:Example.jpg|thumb|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|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|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 a bioretention range from 5:1 to 15:1. (Source: CVC)]]

[[File:Example1.jpg|thumb|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 a bioretention range from 5:1 to 15:1. (Source: CVC)]]

located adjacent to pervious areas such as lawns, gardens or naturalized areas. This makes parks an ideal location for a LID retrofit. Where grading allows, you can construct [[bioswales]] and [[bioretention]] areas in these green areas to pre-treat water prior to infiltration.

located adjacent to pervious areas such as lawns, gardens or naturalized areas. This makes parks an ideal location for a LID retrofit. Where grading allows, you can construct [[bioswales]] and [[bioretention]] areas in these green areas to pre-treat water prior to infiltration.

You can also design parking surfaces and internal roadways as infiltration systems using permeable pavement. This retrofit strategy can be combined with other LID practices. Pathways paved with [[permeable paving]] are another LID option for your park. They reduce runoff volumes and encourage on-site infiltration. [[Exfiltration trenches]] are a viable option on many parks sites as well, as they provide an alternative to conventional conveyance systems (such as storm sewers). They encourage infiltration from hard surfaces and can be used to convey water to other LID features.

You can also design parking surfaces and internal roadways as infiltration systems using permeable pavement. This retrofit strategy can be combined with other LID practices. Pathways paved with [[permeable pavements]] are another LID option for your park. They reduce runoff volumes and encourage on-site infiltration. [[Exfiltration trenches]] are a viable option on many parks sites as well, as they provide an alternative to conventional conveyance systems (such as storm sewers). They encourage infiltration from hard surfaces and can be used to convey water to other LID features.

 

===Accepting drainage from off-site areas===   

===Accepting drainage from off-site areas===   

|-

|-

!Source area

!Source area

![[Permeable paving]]

![[Permeable pavements]]

![[Bioretention]]

![[Bioretention]]

![[Enhanced grass swales]]

![[Enhanced grass swales]]

|Parking lot ||style="text-align: center;| ** || style="text-align: center;|** || style="text-align: center;|** || style="text-align: center;|** || style="text-align: center;|** || style="text-align: center;|** ||style="text-align: center;| o || style="text-align: center;|**

|Parking lot ||style="text-align: center;| ** || style="text-align: center;|** || style="text-align: center;|** || style="text-align: center;|** || style="text-align: center;|** || style="text-align: center;|** ||style="text-align: center;| o || style="text-align: center;|**

|}

|}

[[File:Example5.jpg|thumb|When installing new parks equipment, consider whether the LID practices can be integrated into the design. Here a bioswale has been built into the landscape between a playground and sidewalk. (Source: CVC)]]

[[File:Example5.jpg|thumb|When installing new parks equipment, consider whether the LID practices can be integrated into the design. Here a bioswale has been built into the landscape between a playground and sidewalk. (Source: CVC)]]

==Schools==

==Schools==

[[File:Elm Drive Bioretention.JPG|thumb|right|The Peel District School Board's Adult Education Centre South school partnered with the City of Mississauga to manage runoff from the adjacent street, Elm Drive, on their property. This partnership benefits the City by giving it space to provide an enhanced level of stormwater treatment, and benefited the school through the construction of new parking lay-bys for students. The site is maintained by the City of Mississauga. Source: CVC]]

[[File:Elm Drive Bioretention.JPG|thumb|right|The Peel District School Board's Adult Education Centre South school partnered with the City of Mississauga to manage runoff from the adjacent street, Elm Drive, on their property. This partnership benefits the City by giving it space to provide an enhanced level of stormwater treatment, and benefited the school through the construction of new parking lay-bys for students. The site is maintained by the City of Mississauga. Source: CVC]]

(** = Common, * = Possible, o = Unusual)

(** = Common, * = Possible, o = Unusual)

! Source area  

! Source area  

! [[Permeable pavement]]  

! [[Permeable pavements]]  

! [[Bioretention]]  

! [[Bioretention]]  

! [[Enhanced grass swales]] / [[Bioswales|bioswales]]  

! [[Enhanced grass swales]] / [[Bioswales|bioswales]]  

! [[Green roofs]]  

! [[Green roofs]]  

![[Soakaways, Infiltration Trenches and Infiltration Chambers Guide| Soakaways]] and [[Infiltration trenches|infiltration trenches]]  

! Soakaways and [[Infiltration trenches|infiltration trenches]]  

! [[Exfiltration trenches|Perforated pipe systems]]  

! [[Exfiltration trenches|Perforated pipe systems]]  

! [[Rainwater harvesting]]  

! [[Rainwater harvesting]]  

==Places of worship==

==Places of worship==

Each distinct area of a place of worship can be a source for runoff

Each distinct area of a place of worship can be a source for runoff

over 30 years, and permeable interlocking concrete pavers

over 30 years, and permeable interlocking concrete pavers

can have a design life of 20 to 25 years or greater.

can have a design life of 20 to 25 years or greater.

Using LID techniques to manage stormwater can also

Using LID techniques to manage stormwater can also

eliminate or reduce the need for an on-site storm sewer

eliminate or reduce the need for an on-site storm sewer

negates the need to replace on-site piping, thereby saving

negates the need to replace on-site piping, thereby saving

long-term infrastructure replacement costs.

long-term infrastructure replacement costs.

===Landscaped areas===

===Landscaped areas===

(** = Common, * = Possible, o = Unusual)

(** = Common, * = Possible, o = Unusual)

! Source area  

! Source area  

! [[Permeable pavement]]  

! [[Permeable pavements]]  

! [[Bioretention]]  

! [[Bioretention]]  

! [[Enhanced grass swales]] / [[Bioswales|bioswales]]  

! [[Enhanced grass swales]] / [[Bioswales|bioswales]]  

! [[Green roofs]]  

! [[Green roofs]]  

![[Soakaways, Infiltration Trenches and Infiltration Chambers Guide| Soakaways]] and [[Infiltration trenches|infiltration trenches]]  

! Soakaways and [[Infiltration chambers|infiltration chambers]]  

! [[Exfiltration trenches|Perforated pipe systems]]  

! [[Exfiltration trenches|Perforated pipe systems]]  

! [[Rainwater harvesting]]  

! [[Rainwater harvesting]]  

|style="text-align: left;" |Building || * || * || * || ** || ** || * || ** || o || o || *

|style="text-align: left;" |Building || * || * || * || ** || ** || * || ** || o || o || *

|}

|}

[[Category: Planning]]

[[Category: Planning]]