Acid and Metalliferous Drainage (AMD) Toolkit and Management Plan

The Okane AMD Management System is based on a seven-step hierarchical approach addressing; baseline conditions, prediction, prevention, minimization, control, treatment, and planning for closure. The toolkit also included an introductory unit to provide context and an organizational perspective on AMD issues at a level appropriate to the target audience.

The Toolkit and Management Plan also includes:

• an AMD Workbook that incorporates training modules based on client-specific case studies;
• an Okane-facilitated short course to deliver the AMD Toolkit and complete the AMD Workbook;
• Okane’s mentoring for workshop attendees implementing the AMD Toolkit and Management Plan, including site-specific investigations at their respective sites; and
• a follow-up workshop to allow attendees to present their findings from the site-specific investigations and receive technical mentoring and guidance from Okane.

The toolkit provided users with a decision-making hierarchy pertaining to methodologies employed to firstly manage potential AMD risks, and secondly to mitigate impacts from AMD generation. The toolkit was structured according to the Okane AMD Management system and aligned with the performance expectations prescribed in the client’s AMD and Mine Rock Management Standards.