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</div><h3 Class="title-black"><strong><center>Welcome to the Low Impact Development Stormwater Management Practice Planning and Design Guide</center></strong></h3><div class="col-md-6"><p>The Low Impact Development Stormwater Management Planning and Design GuideToronto and Region Conservation Authority (TRCA) as a tool to help developers,consultants, municipalities and landowners understand and implement more sustainablejurisdictions have defined the term low impact development. For this document, thefollowing definition, adapted from the United States Environmental Protection Agency(U.S. EPA, 2007) will be used:
{{TextBox|1=Low impact development (LID) is a stormwater management strategy that seeks to mitigate the impacts of increased runoff and stormwater pollution by managing runoff as close to its source as possible. LID comprises a set of site design strategies that minimize runoff and distributed, small scale structural practices that mimic natural or predevelopment hydrology through the processes of infiltration, evapotranspiration, harvesting, filtration and detention of stormwater. These practices can effectively remove nutrients, pathogens and metals from runoff, and they reduce the volume and intensity of stormwater flows.}}</p>[[Read more|Definitions]]</div><div class="col-md-6"><div class="thumbnail">http://mediawiki.trca.info/images/b/be/IMG_2457_750X500.jpg</div></div>
<div class="col-md-12"><h4 class="subtitle-black">CONTENTS</h4></div><div class="col-md-12"><div class="toccolours mw-collapsible mw-collapsed"><font color="#565656" font size="4.5"><strong><i class="fa fa-bars" aria-hidden="true"></i> INTRODUCTION TO THE LOW IMPACT DEVELOPMENT PLANNING AND DESIGN GUIDE</strong></font><div class="mw-collapsible-content"><div class="toccolours mw-collapsible mw-collapsed"> [[About this Document|<font color="#44A755"><strong>About this Document</strong>]]</font><br><div class="mw-collapsible-content">[[Acknowledgements|<font color="#565656"> Acknowledgements]]</font><br>[[Definition of Low Impact Development|<font color="#565656"> Definition of Low Impact Development]]</font><br></div>[[Ontario Stormwater Management Manuals and Guides|<font color="#44A755"><strong>Ontario Stormwater Management Manuals and Guides</strong>]]</font><br>[[Ontario Legislative Framework Related to Stormwater Management|<font color="#44A755"><strong>Ontario Legislative Framework Related to Stormwater Management</strong>]]</font><br>[[The Evolution of Stormwater Management in Ontario|<font color="#44A755"><strong>The Evolution of Stormwater Management in Ontario</strong>]]</font><br>[[Principles of Low Impact Development|<font color="#44A755"><strong>Principles of Low Impact Development</strong>]]</font><br> </div></div><div class="toccolours mw-collapsible mw-collapsed"><font color="#565656" font size="4.5"><strong><i class="fa fa-bars" aria-hidden="true"></i> INTEGRATING STORMWATER MANAGEMENT INTO THE PLANNING PROCESS</strong></font><div class="mw-collapsible-content"><div class="toccolours mw-collapsible mw-collapsed">[[Overview of Integrating Stormwater Management Into the Planning Process|<font color="#44A755"><strong>Overview of Integrating Stormwater Management Into the Planning Process</strong>]]</font><br><div class="mw-collapsible-content">[[Landscape-based Stormwater Management Planning Process and Team|<font color="#565656"> Landscape-based Stormwater Management Planning Process and Team]]</font><br>[[Environmental, Land Use and Stormwater Management Planning|<font color="#565656"><em> Environmental, Land Use and Stormwater Management Planning</em>]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Integrating Stormwater Infrastructure Into the Urban Fabric and the Landscape|<font color="#44A755"><strong>Integrating Stormwater Infrastructure Into the Urban Fabric and the Landscape</strong>]]</font><br><div class="mw-collapsible-content">[[Landscape-based SWM Planning and Design Principles|<font color="#565656"> Landscape-based SWM Planning and Design Principles]]</font><br>[[Landscape-based stromwater planning in accord with site geologic context|<font color="#565656"> Landscape-based stromwater planning in accord with site geologic context]]</font><br>[[Landscape-based Stormwater Management Planning at Different Scales|<font color="#565656"> Landscape-based Stormwater Management Planning at Different Scales]]</font><br>[[Stormwater Management Opportunities at the Community Scale|<font color="#565656"><em> Stormwater Management Opportunities at the Community Scale</em>]]</font><br>[[Stormwater Management Opportunities at the Neighbourhood Scale|<font color="#565656"><em> Stormwater Management Opportunities at the Neighbourhood Scale</em>]]</font><br>[[Stormwater Management Opportunities at the Site Scale|<font color="#565656"><em> Stormwater Management Opportunities at the Site Scale</em>]]</font><br>[[Stormwater Management Opportunities for Infill and Redevelopment Sites|<font color="#565656"><em> Stormwater Management Opportunities for Infill and Redevelopment Sites</em>]]</font><br></div>[[Treatment Train Approach to Stormwater Management System Design|<font color="#44A755"><strong>Treatment Train Approach to Stormwater Management System Design</strong>]]</font><br>[[Influence of Stormwater Source Area on Treatment Train Design|<font color="#44A755"><strong>Influence of Stormwater Source Area on Treatment Train Design</strong>]]</font><br> </div></div></div> <div class="toccolours mw-collapsible mw-collapsed"><font color="#565656" font size="4.5"><strong><i class="fa fa-bars" aria-hidden="true"></i> URBANIZATION, CLIMATE CHANGE AND THE LOW IMPACT DEVELOPMENT APPROACH</strong></font><div class="mw-collapsible-content"><div class="toccolours mw-collapsible mw-collapsed"> [[Principles of Low Impact Development|<font color="#44A755"><strong>Principles of Low Impact Development</strong>]]</font><br>[[The Impact of Urbanization and CC and how Low Impact Development can Help|<font color="#44A755"><strong>The Impact of Urbanization and CC and how Low Impact Development can Help (Interdisciplinary section)</strong>]]</font><br><div class="mw-collapsible-content">[[Flooding and Stream Flows|<font color="#565656"> Flooding and Stream Flows]]</font><br>[[Environmental Flows|<font color="#565656"><em> Environmental Flows</em>]]</font><br>[[Erosion and Sedimentation (Geomorphology)|<font color="#565656"> Erosion and Sedimentation (Geomorphology)]]</font><br>[[Surface and Groundwater Water Quality|<font color="#565656"> Surface and Groundwater Water Quality]]</font><br>[[Aquatic Habitats (incl. thermal impacts)|<font color="#565656"> Aquatic Habitats (incl. thermal impacts)]]</font><br>[[Terrestrial|<font color="#565656"> Terrestrial]]</font><br>[[Hydrogeology|<font color="#565656"> Hydrodeology]]</font><br>[[Climate Change|<font color="#565656"> Climate Change]]</font><br>[[Landscape and Recreation|<font color="#565656"> Landscape and Recreation]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Climate Change Resiliency through Stormwater Management|<font color="#44A755"><strong>Climate Change Resiliency through Stormwater Management</strong>]]</font><br><div class="mw-collapsible-content">[[Climate Change in Ontario|<font color="#565656"> Climate Change in Ontario]]</font><br>[[Anticipated Impacts of Climate Change in Ontario|<font color="#565656"> Anticipated Impacts of Climate Change in Ontario]]</font><br>[[Enhancing Climate Change Resiliency With LID|<font color="#565656"> Enhancing Climate Change Resiliency With LID]]</font><br>[[Examples of LID Strategies to Enhance Climate Change Resiliency|<font color="#565656"> Examples of LID Strategies to Enhance Climate Change Resiliency]]</font><br>[[Factoring Predicted Climate Change into Stormwater Infrastructure Design|<font color="#565656"> Factoring Predicted Climate Change into Stormwater Infrastructure Design]]</font><br></div>[[Low Impact Development Site Design Strategies|<font color="#44A755"><strong>Low Impact Development Site Design Strategies</strong>]]</font><br><div class="toccolours mw-collapsible mw-collapsed">[[Adapting Structural Low Impact Development Practices for Ontario|<font color="#44A755"><strong>Adapting Structural Low Impact Development Practices for Ontario</strong>]]</font><br><div class="mw-collapsible-content">[[Cold Climates|<font color="#565656"> Cold Climates]]</font><br>[[Low permeability soils|<font color="#565656"> Low permeability soils]]</font><br>[[High density development|<font color="#565656"> High density development]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[The Low Impact Development Design Process|<font color="#44A755"><strong>The Low Impact Development Design Process (Screening Section)</strong>]]</font><br><div class="mw-collapsible-content">[[Design Principles for Flood Control|<font color="#565656"> Design Principles for Flood Control]]</font><br>[[Design Principles for Nutrient Management|<font color="#565656"> Design Principles for Nutrient Management]]</font><br>[[Modelling Treatment Train|<font color="#565656"> Modelling Treatment Train]]</font><br></div>[[Costs and Benefits of Low Impact Development Approaches|<font color="#44A755"><strong>Costs and Benefits of Low Impact Development Approaches</strong>]]</font><br> </div></div></div><div></div></div></div><div class="toccolours mw-collapsible mw-collapsed"><font color="#565656" font size="4.5"><strong><i class="fa fa-bars" aria-hidden="true"></i> DESIGN OF STRUCTURAL LOW IMPACT DEVELOPMENT PRACTICES FOR STORMWATER MANAGEMENT</strong></font><div class="mw-collapsible-content"><div class="toccolours mw-collapsible mw-collapsed">[[Bioretention|<font color="#44A755"><strong>Bioretention</strong>]]</font><br><div class="mw-collapsible-content">[[Bioretention_Overview|<font color="#565656"> Overview]]</font><br>[[Bioretention_Design_Guidance|<font color="#565656"> Design Guidance]]</font><br>[[Bioretention_BMP_Sizing|<font color="#565656"> BMP Sizing]]</font><br>[[Bioretention_Design_Specifications|<font color="#565656"> Design Specifications]]</font><br>[[Bioretention_Construction_Considerations|<font color="#565656"> Construction Considerations]]</font><br>[[Bioretention_Inspection_and_Maintenance_Needs|<font color="#565656"> Inspection and Maintenance Needs]]</font><br>[[Bioretention_Life_Cycle_Costs|<font color="#565656"> Life Cycle Costs]]</font><br>[[Bioretention_Case_Studies|<font color="#565656"> Case Studies]]</font><br>[[Bioretention_Typical_Design_Drawings|<font color="#565656"> Typical Design Drawings]]</font><br>[[Bioretention_Supporting_Material_and_External_Resources|<font color="#565656"> Supporting Material and External Resources]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Permeable_Pavement|<font color="#44A755"><strong>Permeable Pavement</strong>]]</font><br><div class="mw-collapsible-content">[[Permeable_Pavement_Overview|<font color="#565656"> Overview]]</font><br>[[Permeable_Pavement_Design_Guidance|<font color="#565656"> Design Guidance]]</font><br>[[Permeable_Pavement_BMP_Sizing|<font color="#565656"> BMP Sizing]]</font><br>[[Permeable_Pavement_Design_Specifications|<font color="#565656"> Design Specifications]]</font><br>[[Permeable_Pavement_Construction_Considerations|<font color="#565656"> Construction Considerations]]</font><br>[[Permeable_Pavement_Inspection_and_Maintenance_Needs|<font color="#565656"> Inspection and Maintenance Needs]]</font><br>[[Permeable_Pavement_Life_Cycle_Costs|<font color="#565656"> Life Cycle Costs]]</font><br>[[Permeable_Pavement_Case_Studies|<font color="#565656"> Case Studies]]</font><br>[[Permeable_Pavement_Typical_Design_Drawings|<font color="#565656"> Typical Design Drawings]]</font><br>[[Permeable_Pavement_Supporting_Material_and_External_Resources|<font color="#565656"> Supporting Material and External Resources]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Underground_Infiltration_Systems|<font color="#44A755"><strong>Underground Infiltration Systems</strong>]]</font><br><div class="mw-collapsible-content">[[Underground_Infiltration_Systems_Overview|<font color="#565656"> Overview]]</font><br>[[Underground_Infiltration_Systems_Design_Guidance|<font color="#565656"> Design Guidance]]</font><br>[[Underground_Infiltration_Systems_BMP_Sizing|<font color="#565656"> BMP Sizing]]</font><br>[[Underground_Infiltration_Systems_Design_Specifications|<font color="#565656"> Design Specifications]]</font><br>[[Underground_Infiltration_Systems_Construction_Considerations|<font color="#565656"> Construction Considerations]]</font><br>[[Underground_Infiltration_Systems_Inspection_and_Maintenance_Needs|<font color="#565656"> Inspection and Maintenance Needs]]</font><br>[[Underground_Infiltration_Systems_Life_Cycle_Costs|<font color="#565656"> Life Cycle Costs]]</font><br>[[Underground_Infiltration_Systems_Case_Studies|<font color="#565656"> Case Studies]]</font><br>[[Underground_Infiltration_Systems_Typical_Design_Drawings|<font color="#565656"> Typical Design Drawings]]</font><br>[[Underground_Infiltration_Systems_Supporting_Material_and_External_Resources|<font color="#565656"> Supporting Material and External Resources]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Rainwater_Harvesting|<font color="#44A755"><strong>Rainwater Harvesting</strong>]]</font><br><div class="mw-collapsible-content">[[Rainwater_Harvesting_Overview|<font color="#565656"> Overview]]</font><br>[[Rainwater_Harvesting_Design_Guidance|<font color="#565656"> Design Guidance]]</font><br>[[Rainwater_Harvesting_BMP_Sizing|<font color="#565656"> BMP Sizing]]</font><br>[[Rainwater_Harvesting_Design_Specifications|<font color="#565656"> Design Specifications]]</font><br>[[Rainwater_Harvesting_Construction_Considerations|<font color="#565656"> Construction Considerations]]</font><br>[[Rainwater_Harvesting_Inspection_and_Maintenance_Needs|<font color="#565656"> Inspection and Maintenance Needs]]</font><br>[[Rainwater_Harvesting_Life_Cycle_Costs|<font color="#565656"> Life Cycle Costs]]</font><br>[[Rainwater_Harvesting_Case_Studies|<font color="#565656"> Case Studies]]</font><br>[[Rainwater_Harvesting_Typical_Design_Drawings|<font color="#565656"> Typical Design Drawings]]</font><br>[[Rainwater_Harvesting_Supporting_Material_and_External_Resources|<font color="#565656"> Supporting Material and External Resources]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Enhanced_Grass_Swales|<font color="#44A755"><strong>Enhanced Grass Swales</strong>]]</font><br><div class="mw-collapsible-content">[[Enhanced_Grass_Swales_Overview|<font color="#565656"> Overview]]</font><br>[[Enhanced_Grass_Swales_Design_Guidance|<font color="#565656"> Design Guidance]]</font><br>[[Enhanced_Grass_Swales_BMP_Sizing|<font color="#565656"> BMP Sizing]]</font><br>[[Enhanced_Grass_Swales_Design_Specifications|<font color="#565656"> Design Specifications]]</font><br>[[Enhanced_Grass_Swales_Construction_Considerations|<font color="#565656"> Construction Considerations]]</font><br>[[Enhanced_Grass_Swales_Inspection_and_Maintenance_Needs|<font color="#565656"> Inspection and Maintenance Needs]]</font><br>[[Enhanced_Grass_Swales_Life_Cycle_Costs|<font color="#565656"> Life Cycle Costs]]</font><br>[[Enhanced_Grass_Swales_Case_Studies|<font color="#565656"> Case Studies]]</font><br>[[Enhanced_Grass_Swales_Typical_Design_Drawings|<font color="#565656"> Typical Design Drawings]]</font><br>[[Enhanced_Grass_Swales_Supporting_Material_and_External_Resources|<font color="#565656"> Supporting Material and External Resources]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Green_Roofs|<font color="#44A755"><strong>Green Roofs</strong>]]</font><br><div class="mw-collapsible-content">[[Green_Roofs_Overview|<font color="#565656"> Overview]]</font><br>[[Green_Roofs_Design_Guidance|<font color="#565656"> Design Guidance]]</font><br>[[Green_Roofs_BMP_Sizing|<font color="#565656"> BMP Sizing]]</font><br>[[Green_Roofs_Design_Specifications|<font color="#565656"> Design Specifications]]</font><br>[[Green_Roofs_Construction_Considerations|<font color="#565656"> Construction Considerations]]</font><br>[[Green_Roofs_Inspection_and_Maintenance_Needs|<font color="#565656"> Inspection and Maintenance Needs]]</font><br>[[Green_Roofs_Life_Cycle_Costs|<font color="#565656"> Life Cycle Costs]]</font><br>[[Green_Roofs_Case_Studies|<font color="#565656"> Case Studies]]</font><br>[[Green_Roofs_Typical_Design_Drawings|<font color="#565656"> Typical Design Drawings]]</font><br>[[Green_Roofs_Supporting_Material_and_External_Resources|<font color="#565656"> Supporting Material and External Resources]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Absorbent_Landscapes|<font color="#44A755"><strong>Absorbent Landscapes</strong>]]</font><br><div class="mw-collapsible-content">[[Absorbent_Landscapes_Overview|<font color="#565656"> Overview]]</font><br>[[Absorbent_Landscapes_Design_Guidance|<font color="#565656"> Design Guidance]]</font><br>[[Absorbent_Landscapes_BMP_Sizing|<font color="#565656"> BMP Sizing]]</font><br>[[Absorbent_Landscapes_Design_Specifications|<font color="#565656"> Design Specifications]]</font><br>[[Absorbent_Landscapes_Construction_Considerations|<font color="#565656"> Construction Considerations]]</font><br>[[Absorbent_Landscapes_Inspection_and_Maintenance_Needs|<font color="#565656"> Inspection and Maintenance Needs]]</font><br>[[Absorbent_Landscapes_Life_Cycle_Costs|<font color="#565656"> Life Cycle Costs]]</font><br>[[Absorbent_Landscapes_Case_Studies|<font color="#565656"> Case Studies]]</font><br>[[Absorbent_Landscapes_Typical_Design_Drawings|<font color="#565656"> Typical Design Drawings]]</font><br>[[Absorbent_Landscapes_Supporting_Material_and_External_Resources|<font color="#565656"> Supporting Material and External Resources]]</font><br></div><div class="toccolours mw-collapsible mw-collapsed">[[Non-Structural_BMPs|<font color="#44A755"><strong>Non-Structural BMPs</strong>]]</font><br><div class="mw-collapsible-content">[[Non-Structural_BMPs_Overview|<font color="#565656"> Overview]]</font><br>[[Non-Structural_BMPs_Design_Guidance|<font color="#565656"> Design Guidance]]</font><br>[[Non-Structural_BMPs_BMP_Sizing|<font color="#565656"> BMP Sizing]]</font><br>[[Non-Structural_BMPs_Design_Specifications|<font color="#565656"> Design Specifications]]</font><br>[[Non-Structural_BMPs_Construction_Considerations|<font color="#565656"> Construction Considerations]]</font><br>[[Non-Structural_BMPs_Inspection_and_Maintenance_Needs|<font color="#565656"> Inspection and Maintenance Needs]]</font><br>[[Non-Structural_BMPs_Life_Cycle_Costs|<font color="#565656"> Life Cycle Costs]]</font><br>[[Non-Structural_BMPs_Case_Studies|<font color="#565656"> Case Studies]]</font><br>[[Non-Structural_BMPs_Typical_Design_Drawings|<font color="#565656"> Typical Design Drawings]]</font><br>[[Non-Structural_BMPs_Supporting_Material_and_External_Resources|<font color="#565656"> Supporting Material and External Resources]]</font><br></div></div></div></div></div></div></div></div></div></div> <div class="toccolours mw-collapsible mw-collapsed"><font color="#565656" font size="4.5"><strong><i class="fa fa-bars" aria-hidden="true"></i> MONITORING OF STORMWATER MANAGEMENT PRACTICES</strong></font><div class="mw-collapsible-content"> <div class="toccolours mw-collapsible mw-collapsed">[[Monitoring|<font color="#44A755"><strong>Monitoring</strong>]]</font><br><div class="mw-collapsible-content"> [[Compliance Monitoring|<font color="#565656"> Compliance Monitoring]]</font><br>[[Performance Monitoring|<font color="#565656"> Performance Monitoring]]</font><br>[[Environmental Effects Monitoring|<font color="#565656"> Environmental Effects Monitoring]]</font><br></div> </div></div> <div class="toccolours mw-collapsible mw-collapsed"><font color="#565656" font size="4.5"><strong><i class="fa fa-bars" aria-hidden="true"></i> TOOLS</strong></font> <div class="mw-collapsible-content"> [[Life Cycle Costing Tool|<font color="#44A755"><strong>Life Cycle Costing Tool</strong>]]</font><br>[[Planting Guide Tool|<font color="#44A755"><strong>Planting Guide Tool</strong>]]</font><br> </div></div> </div><div class="col-md-12"><h4 class="subtitle-black">HOT TOPICS</h4></div><div class="col-md-2"><h4Blue>Common concerns about groundwater interaction</h4Blue><p>Lorem ipsum dolor sit amet, consectetur adipiscing dolor sit amet e.</p><btnPrimary>Read more ...</btnPrimary></div><div class="col-md-2"><h4Blue>Infiltration on tight soils: it's possible!</h4Blue><p>Lorem ipsum dolor sit amet, consectetur adipiscing dolor sit amet e.</p><btnPrimary>Read more ...</btnPrimary></div><div class="col-md-2"><h4Blue>Water-loving perennials</h4Blue><p>Lorem ipsum dolor sit amet, consectetur adipiscing dolor sit amet e.</p><btnPrimary>Read more ...</btnPrimary></div><div class="col-md-2"><h4Blue>Budgeting for a BMP's life cycle</h4Blue><p>Lorem ipsum dolor sit amet, consectetur adipiscing dolor sit amet e.</p><btnPrimary>Read more ..</btnPrimary></div><div class="col-md-2"><h4Blue>Tendering for LIDs</h4Blue><p>Lorem ipsum dolor sit amet, consectetur adipiscing dolor sit amet e.</p><btnPrimary>Read more ..</btnPrimary></div><div class="col-md-2"><h4Blue>Maintaining BMPs</h4Blue><p>Lorem ipsum dolor sit amet, consectetur adipiscing dolor sit amet e.</p><btnPrimary>Read more ..</btnPrimary></div><div class="col-md-12"><h4 class="subtitle-black">BEST MANAGEMENT PRACTICES</h4></div><div class="col-md-3 mwbs-color-darker"><div class="carousel-inner"><div class="item active"><div class="thumbnail">http://mediawiki.trca.info/images/4/4c/Bioretention_550x550.jpg<div id="mycarousel" class="carousel slide" data-ride="carousel"><div class="carousel-caption"><h5>[[Bioretention cells|BIORETENTION]]</h5></div></div></div></div></div></div>Line 357:
Line 15: <h5>PERMEABLE PAVEMENT</h5></div></div></div></div></div></div><div class="col-md-3 mwbs-color-darker"><div class="carousel-inner"><div class="item active"><div class="thumbnail">http://mediawiki.trca.info/images/7/73/Cultec_infiltration_chamber_550x550.jpg<div id="mycarousel" class="carousel slide" data-ride="carousel"><div class="carousel-caption"><h5>[[Infiltration galleries|UNDERGROUND INFILTRATION SYSTEMS]]</h5></div></div></div></div></div></div><div class="col-md-3 mwbs-color-darker"><div class="carousel-inner"><div class="item active"><div class="thumbnail">http://mediawiki.trca.info/images/2/20/RAINWATER_HARVESTING_TANK_550x550.jpg<div id="mycarousel" class="carousel slide" data-ride="carousel"><div class="carousel-caption"><h5>[[Rainwater_harvesting|RAINWATER HARVESTING]]</h5></div></div></div></div></div></div><div class="col-md-3 mwbs-color-darker"><div class="carousel-inner"><div class="item active"><div class="thumbnail">http://mediawiki.trca.info/images/7/7f/DAA_Grass_swales_1_550x550.jpg<div id="mycarousel" class="carousel slide" data-ride="carousel"><div class="carousel-caption"><h5>[[Swales|ENHANCED GRASS SWALES]]</h5></div></div></div></div></div></div><div class="col-md-3 mwbs-color-darker"><div class="carousel-inner"><div class="item active"><div class="thumbnail">http://mediawiki.trca.info/images/2/24/Green_Roof_550x550.jpg<div id="mycarousel" class="carousel slide" data-ride="carousel"><div class="carousel-caption"><h5>[[Green roofs|GREEN ROOFS]]</h5></div></div></div></div></div></div><div class="col-md-3 mwbs-color-darker"><div class="carousel-inner"><div class="item active"><div class="thumbnail">http://mediawiki.trca.info/images/a/a0/P7270012_550x550.jpg<div id="mycarousel" class="carousel slide" data-ride="carousel"><div class="carousel-caption"><h5>ABSORBENT LANDSCAPES</h5></div></div></div></div></div></div><div class="col-md-3 mwbs-color-darker"><div class="carousel-inner"><div class="item active"><div class="thumbnail">http://mediawiki.trca.info/images/e/e8/St-patricks-parade-8-1024.jpg<div id="mycarousel" class="carousel slide" data-ride="carousel"><div class="carousel-caption"><h5>NON-STRUCTURAL BMPs</h5></div></div></div></div></div></div><div class="clearfix"></div>
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<strong><h3><textdanger><em>THIS WEBSITE IS UNDER CONSTRUCTION. DO NOT REFERENCE CONTENT PRESENTED ON THIS WEBSITE UNTIL THIS MESSAGE HAS BEEN REMOVED.</em></textdanger></h3></strong>
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<strong><center>Welcome to the Low Impact Development Stormwater Management Practice Planning and Design Guide</center></strong></h3>
The Low Impact Development Stormwater Management Planning and Design Guide (LID SWM Guide) has been developed by Credit Valley Conservation (CVC), Grand River Conservation Authority, Lake Simcoe Region Conservation Authority, and Toronto and Region Conservation Authority (TRCA) as a tool to help developers, consultants, municipalities and landowners understand and implement more sustainable stormwater management planning and design practices in their watersheds. Many jurisdictions have defined the term low impact development. For this document, the following definition, adapted from the United States Environmental Protection Agency (U.S. EPA, 2007) will be used:
{{TextBox|1=Low impact development (LID) is a stormwater management strategy that seeks to mitigate the impacts of increased runoff and stormwater pollution by managing runoff as close to its source as possible. LID comprises a set of site design strategies that minimize runoff and distributed, small scale structural practices that mimic natural or predevelopment hydrology through the processes of infiltration, evapotranspiration, harvesting, filtration and detention of stormwater. These practices can effectively remove nutrients, pathogens and metals from runoff, and they reduce the volume and intensity of stormwater flows.}}
(LID SWM Guide) has been developed by Credit Valley Conservation (CVC) and
stormwater management planning and design practices in their watersheds. Many
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<div id="mycarousel" class="carousel slide" data-ride="carousel">
<div class="carousel-caption">
<div class="carousel-caption">