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Low Impact Development Treatment Train Tool Workshop

Thursday, April 26, 2018

8:30 a.m. - 12:00 p.m.

Watershed Conservation Centre, Fanshawe Conservation Area, London (View Map)


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 1.0 of the tool which is available for free download on the STEP website. 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 the ½ day workshop. Development team representatives from the GTA CAs along with the consultants (Golder) will be co-delivering this session.

*Participants are requested to bring a fully charged laptop. Lunch will be provided courtesy of MTE Consultants Inc.

Contact: Vanni Azzano (Upper Thames River Conservation Authority) at 519-284-2829 ext 244 or

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