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LID SWM Planning and Design Guide β

Low impact development treatment train tool

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The Low Impact Development Treatment Train Tool (LID TTT) is designed to help developers, consultants, municipalities and landowners understand and implement more sustainable stormwater management planning and design practices in their watersheds. The tool focuses on the use of Best Management Practices (BMP)’s and Low Impact Development (LID) techniques, and:

  • analyzes annual and event based runoff volumes,
    • including water budget information: surface evapotranspiration, surface runoff, and infiltration to soil
  • provides estimates of pollutant load removal.

The tool is built upon the open source EPA SWMM5 model providing a user-friendly interface for novice modelers and cross-compatibility with SWMM5 for further model development.

The LID TTT has been developed in partnership between Lake Simcoe Region Conservation Authority (LSRCA), Credit Valley Conservation (CVC) and Toronto and Region Conservation Authority (TRCA).