Registration Required Overview The workshop will detail the different life phases of a Tailings Storage Facility and the various cover systems. You will also learn what to do if Passive Closure is not achievable. Audience The workshop is geared towards professionals who are involved in the design or oversight of mining dams throughout their various phases, such as professional engineers, dam owners, dam regulators and any others interested in understanding more about TSF closure and risk based vs. objectives based closure. Details The Canadian Dam Association (CDA) provides technical guidance on the design, construction, operation, and closure aspects of dams in Canada. Tailings Storage Facilities (TSFs) also require specific and detailed guidance for effective and successful closure of the TSF. To address this need, a working group was established and directed to develop a Technical Bulletin on closure. A tailings dam or the TSF’s closure configuration must achieve long term physical and geochemical stability with a positive ecological trajectory at closure. Additionally, there needs to be sustainable, environmentally appropriate after use with closure planning accounting for the end land use of the TSF. The ultimate goal of closure should be to create a sustainable landscape where catastrophic failure modes have been eliminated and/or where the risks associated with the structure are judged to be low enough for both community acceptance and the environment. Closure risks should be identified and integrated from the outset when determining the options for tailings storage, process selection and tailings technology. Closure plans should be continuously revisited as operational knowledge evolves, ensuring that the plans are updated and aligned with current understanding. This workshop will describe the process and phases of closure with important considerations that need to be made. The morning session will focus on describing the Closure Bulletin, the types of approaches that can be used for closure, provide examples of site closure, and have a breakout session to work through examples of closure methods used. The afternoon session will be dedicated to discussing and working through key terminology that is used in the Closure Bulletin. Participants will learn about the pros and cons of the various cover options and what considerations are necessary when Passive closure cannot be obtained. Learning objectives of this workshop will be for the participants to understand the definitions and associated implications related to closure. This workshop will give participants a greater comprehension of proposed considerations for physical stability to achieve successful closure planning and design.