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LID Treatment Train Tool and Infiltration Modelling – Southwestern Ontario Training

Friday, March 29, 2019

8:30 a.m. to 3:30 p.m.

Gemini Sportsplex , Strathroy (View Map)

$100 CAD

The Low Impact Development Treatment Train Tool (LID TTT) has been developed by Lake Simcoe Region Conservation Authority (LSRCA), Credit Valley Conservation (CVC) 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. The purpose of the tool is to analyze annual and event based runoff volumes and pollutant load removal by the use of Best Management Practices (BMPs) and Low Impact Development (LID) techniques. The LID TTT provides preliminary water budget analysis (i.e. surface ET, surface runoff, infiltration to soil) and pollutant load removal estimates for pre- and post-development scenarios. 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 intent of this workshop is to provide an overview of Version 1.2.1 of the tool which is available for free download on the STEP website (https://sustainabletechnologies.ca/low-impact-development-treatment-train-tool/). A detailed walk through of the model capabilities, case study examples, along with a Q & A and experimentation period will all be a component of morning workshop. Participants are requested to download the LID TTT prior to the workshop and to bring a fully charged laptop.

The afternoon portion of the workshop will provide participants with an opportunity to apply Darcy drainage calculations to explore the effects of altering the dimensions and effective porosity of infiltration systems.

Groundwater interactions, including the modeling and mitigation of groundwater mounding will be practiced using Hantush and Hooghoudt principles.

More Details

Contact: Victoria Kring at or Victoria.Kring@trca.on.ca