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Low Impact DevelopmentLow impact development is a stormwater management and land development strategy applied at the parcel and subdivision scale that emphasizes conservation and use of on-site natural features integrated with engineered, small scale hydrologic controls to more closely mimic pre-development hydrologic functions.A stormwater management strategy that seeks to mitigate the impacts of increased urban runoff and stormwater pollution by managing it as close to its source as possible. It comprises a set of site design approaches and small scale stormwater management practices that promote the use of natural systems for infiltration and evapotranspiration, and rainwater harvesting. Stormwater Management Planning and Design Guide
Gravel diaphragms
LID experimental facility at Kortright parking lot, Vaughan

Welcome reviewer! We have been looking forward to your arrival. In anticipation we have prepared a short printable form to help direct your critique of the wiki at this time . Broadly, the themes are split between navigation and content. when it comes to terminology we have attempted to align ourselves with the most commonly applied terms for each BMP found on the internet. Comments will be reviewed throughout 2018 (and will be welcome forever thereafter)

This is a new kind of guideline document; intended to improve your experience. Recommendations have been pared down into tight, actionable articles. Expect to find a lot of data rich tables, lists and tools. If you believe the content to be incorrect or out of date, please let us know using ‘Help improve this page’ and we’ll make a rapid response. Minor changes will be made as soon as possible, significant changes may be delayed pending review by a panel of STEP members. Note that the comments you leave will appear in the VIEW FEEDBACK link on the left. When you need to reference an article to support your decisions and designs, use the CITE THIS PAGE link on the left. The website automatically maintains a public, detailed history of every content change made, see VIEW HISTORY at the top. This is a relatively young, living document; conceived in early 2017. You will find that we’re missing information, but we are developing rapidly. An important part of this process is to know what you need, so please submit your feedback!