Table of contents

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Structural BMP types	Non-structural practices	Planning	Other topics	Background material
Green roofs Rainwater harvesting Rain barrels Bioretention Rain gardens Biofilters Swales Bioswales Enhanced grass swales Infiltration chambers Infiltration trenches Exfiltration trenches Trees Permeable paving Absorbent landscapes Pretreatment Vegetated filter strips Gravel diaphragms Dry ponds	Street sweeping No-mow Digital technologies ESC?	Integrated design Site design strategies Existing hydrologic features and functions Siting and layout of development Reducing impervious area Natural drainage Public lands site conditions LID opportunities By road type On industrial and commercial properties In parks	Cost analysis resources Low permeability soils Winter Wildlife Water quality Phosphorus Runoff volume control target Flood mitigation Peak flow Funding Other guides Academic research Drawdown time	Definition of Low Impact Development History and Context Evolution of SWM

Best management practice. State of the art methods or techniques used to manage the quantity and improve the quality of wet weather flow. BMPs include: source, conveyance and end-of-pipe controls.

Low Impact Development. 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.