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| = About the Low Impact Development Planning and Design Wiki Guide = | | <div class="mainpage_pagetitle">'''LOW IMPACT DEVELOPMENT STORMWATER MANAGEMENT PLANNING AND DESIGN GUIDE''' |
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| | {| role="presentation" class="mainpage_layouttable mainpage_middleblock" |
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| == About the Wiki Guide Format == | | | class="mainpage_hubbox_left" | |
| | <div class="mainpage_boxtitle">'''{{Main page/include|left box title|{{{1|}}}}}'''</div> |
| | <div class="mainpage_boxcontents"> |
| | We have many more articles. If you don't see what you're looking for, please check the '''[[Table of contents|contents]]''' page or use the search bar |
| | <gallery mode="packed-overlay" heights=170px> |
| | File:Factsheet LIDBMPS.png|[[LID BMP Fact Sheets]]|link= LID BMP Fact Sheets |
| | Community planning.jpg|[[Better site design]]|link=Better site design |
| | O connor Park Bioretention.JPG|[[Bioretention|Bioretention]]|link=Bioretention |
| | calculator.jpg|[[Cost analysis resources]]|link=Cost analysis resources |
| | Curb inlet grade.jpg|[[Curb cuts|Curb inlets]]|link=Curb cuts |
| | YorkU1.jpg|[[Green roofs]]|link=Green roofs |
| | Image from StormTech.jpg|[[Infiltration chambers|Infiltration Chambers]]|link=Infiltration chambers |
| | Infiltration Testing 2.jpeg |[[Design infiltration rate|Infiltration testing]]|link=Design infiltration rate |
| | Clogged pipe.JPG|[[Inspections and Maintenance]]|link=Inspections and maintenance |
| | LIDTTT.png|[[Low impact development treatment train tool|Low Impact Development Treatment Train Tool]]|link=Low impact development treatment train tool |
| | PaveDrain.jpg|[[Permeable pavements|Permeable pavements]]|link=Permeable pavements |
| | Green raindrops (2650764957).jpg|[[Plants]]|link=Plants |
| | Site Conditions Road Right of Way Cover.jpg|[[Screening LID options|Site assessment]]|link=Screening LID options |
| | LSRCA planters.jpg|[[Stormwater planters|Stormwater planters]]|link=Stormwater planters |
| | TRCA YorkU grass swale 3.jpg|[[Swales]]|link=swales |
| | Pipe with connector.jpg|[[Underdrains|Underdrains]]|link=Underdrains |
| | Snow piles.jpg|[[Winter|Winter]]|link=Winter |
| | File:Central Parkway - soil cell, stormwater planter.JPG|[[Stormwater Tree Trenches]]|link=Stormwater Tree Trenches |
| | </gallery> |
| | </div> |
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| Welcome to the Low Impact Development Stormwater Management Practice Planning and Design Guide website. This website was developed using Mediawiki, a wiki application that allows for easy editing and that has powerful search abilities. See Introduction to the wiki for more information. | | | class="mainpage_hubbox" | |
| | <div class="mainpage_boxtitle">'''{{Main page/include|right box title|{{{1|}}}}}'''</div> |
| | <div class="mainpage_boxcontents"> |
| | '''Welcome user! We have been looking forward to your arrival.''' |
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| {{TextBox|1=Consult the [//meta.wikimedia.org/wiki/Help:Contents User's Guide] for information on using the wiki software.}}
| | In anticipation we have prepared a short printable form to help direct your critique of the wiki. |
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| == About the Contents of this Guide ==
| | {{Clickable button|[[Media:Comments.pdf|Download pdf feedback form]]}} |
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| The Low Impact Development Stormwater Management Planning and Design Guide
| | If you have a shorter comment or observation please use the anonymous feedback box at the bottom of every page. |
| (LID SWM Guide) has been developed by Credit Valley Conservation (CVC) and
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| Toronto and Region Conservation Authority (TRCA) as a tool to help developers,
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| consultants, municipalities and landowners understand and implement more sustainable
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| stormwater management planning and design practices in their watersheds. Many
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| jurisdictions have defined the term low impact development. For this document, the
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| following definition, adapted from the United States Environmental Protection Agency
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| (U.S. EPA, 2007) will be used:
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| {{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.}} | | {{Clickable button|[[Table of Contents]]}} |
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| The LID SWM Guide provides information and direction to assist engineers, ecologists
| | *[[Definition of Low Impact Development|What is low impact development?]] |
| and planners with landscape-based stormwater management planning and the
| | *[[Photographs]] |
| selection, design, construction and monitoring of sustainable stormwater management
| | *[[Wander_lonely_as_a_cloud|Browse random pages!]] |
| practices. The focus of this guide is on guidance regarding the planning and design of
| | *[[Acknowledgements]] |
| structural low impact development practices for stormwater management.
| | *[[Updates|Subscribe to updates]] |
| | *[[How to contribute| email us]] |
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| The practice of managing stormwater is continuing to evolve as the science of
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| watershed management and understanding of our watersheds grow. Effective
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| management of stormwater is critical to the continued health of our streams, rivers,
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| lakes, fisheries and terrestrial habitats. CVC and TRCA believe that an improved
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| understanding of the municipal and environmental planning process and the
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| requirements for stormwater management will lead to improvements in management
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| practices and an increasingly standardized and streamlined approach to addressing
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| stormwater throughout the CVC and TRCA watersheds.
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| The LID SWM Guide is intended to augment the Ontario Ministry of the Environment
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| (OMOE) Stormwater Management Planning and Design Manual (2003). The OMOE
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| manual provides design criteria for “conventional” end-of-pipe stormwater management
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| practices such as wet ponds and constructed wetlands but provides only limited
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| information about lot level and conveyance controls. The OMOE manual does, however,
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| emphasize the use of a “treatment train” approach to reduce the impacts of stormwater runoff. A treatment train approach – a combination of lot level, conveyance, and end-ofpipe
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| stormwater management practices – is usually required to meet the multiple
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| objectives of stormwater management, which include maintaining the hydrologic cycle,
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| protecting water quality, and preventing increased erosion and flooding.
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| This LID SWM Guide focuses on a number of lot level and conveyance stormwater
| | [[File:CVClogo.jpg|150px|link=http://cvc.ca]] |
| management practices that have been used extensively in Europe, the United States,
| | [[File:LSRCAlogo.png|150px|link=http://lsrca.on.ca]] |
| British Columbia and at demonstration sites in Ontario. These practices have only
| | [[File:Toronto-and-Region-Conservation-Authority-logo.png|200px|link=http://trca.on.ca]] |
| recently been considered for broad application in Ontario as part of the treatment train
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| approach. These low impact development practices include green roofs, bioretention,
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| permeable pavement, soakaways, perforated pipe systems, enhanced grass swales,
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| dry swales and rainwater harvesting. The LID SWM Guide recommends and supports
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| the use of the treatment train approach for stormwater management. Accordingly, the
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| reader is urged to refer to the OMOE manual (OMOE, 2003), as a guide for
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| incorporating more traditional practices such as wet ponds and wetlands into the overall
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| stormwater management planning and design process.
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| The LID SWM Guide is not intended to limit innovation or restrict the use of creative
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| solutions for stormwater management. Indeed, the OMOE, CVC, TRCA and partner
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| municipalities encourage the development of innovative designs and technologies.
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| = Related Documents = | |
| This manual is not a stand-alone document. It is intended to augment the Ontario
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| Ministry of the Environment’s 2003 Stormwater Management Planning and Design
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| Manual, which provides design criteria for “conventional” end-of-pipe stormwater
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| management practices such as wet ponds and constructed wetlands. It is also a
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| companion document to other stormwater related guidance documents prepared by
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| CVC and TRCA. Amongst others, these include:
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| '''CVC'''
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| • Credit River Water Management Guidelines (CRWMG) (2007);
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| • Credit River Stormwater Management Criteria (currently under development;
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| will be an appendix to the CRWMG;
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| • Geomorphic and Meander Belt Guidelines (an appendix to the CRWMG);
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| • Floodline Mapping Guidelines (an appendix to the CRWMG);
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| • Environmental Impact Report Terms of Reference (an appendix to the
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| CRWMG);
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| • Technical Guidelines for Floodproofing, 1994 (an appendix to the CRWMG);
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| • Hydrologic/Hydraulic Modeling (an appendix to the CRWMG Guidelines);
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| • Guidelines for Hydrogeologic Studies (an appendix to the CRWMG);
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| • Headwater Assessment Guidelines (an appendix to the CRWMG).
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| '''TRCA'''
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| • Planning and Development Procedural Manual (2007);
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| • Stormwater Management Criteria (currently under development);
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| • Floodplain Management Guideline; and
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| • Stream Crossing Guidelines.
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| = Notice = | |
| The contents of this report do not necessarily represent the policies of the supporting agencies. Although
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| every reasonable effort has been made to ensure the integrity of the report, the supporting agencies do
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| not make any warranty or representation, expressed or implied, with respect to the accuracy or
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| completeness of the information contained herein. Mention of trade names or commercial products does
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| not constitute endorsement or recommendation of those products.
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| = Acknowledgements =
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| '''Project Team:'''
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| • Toronto and Region Conservation Authority
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| • Credit Valley Conservation Authority
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| • Sustainable Technologies Evaluation Program
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| • Aquafor Beech Limited
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| • Schollen & Company
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| • Dougan and Associates
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| • Kidd Consulting
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| • Center for Watershed Protection
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| • Chesapeake Stormwater Network
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| '''Funding support for this document was generously provided by:'''
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| • Region of Peel
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| • City of Toronto
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| • Region of York
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| • Fisheries and Oceans Canada
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| • Ontario Ministry of the Environment
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| • Environment Canada’s Great Lakes Sustainability Fund
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