TDA is an engineered product made by mechanically shredding scrap tires. It is processed in Alberta by tire recyclers registered with the Tire Recycling Program, with third party quality control of the finished product.  Since its introduction in 1996, TDA has been an effective alternative to gravel as a drainage medium for leachate collection systems in municipal landfills. 

For Municipalities, First Nations and Métis Settlements

  • TDA can offer significant cost savings compared to conventional aggregate. Alberta's Tire Recycling Program funds 100% of the cost to produce the material and a percentage of the cost to deliver the finished material to the landfill site.

  • Alberta Recycling can work directly with Municipalities, First Nations and Métis Settlements to order TDA for future landfill cells (at least three years in advance to the actual building of the cell).  

  • A TDA Cost Tool Spreadsheet ('calculator') is available which enables applicants to apply their own expected unit rates for each of the input fields e.g. thickness of waste pile, cost of gravel to calculate potential cost savings.

  • To apply for TDA for your next landfill cell please e-mail Alberta Recycling at [email protected] or call our Tire Program Coordinator at 1-888-999-8762.

For further information on TDA please download "Technical Bulletin - Examining the Safety and Effectiveness of Tire-Derived Aggregate for use in Leachate Systems".

 Examples of TDA processed from scrap tires

Example of TDA being placed in a new landfill cell




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