This report provides a comprehensive list of information requirements and factors to consider in assessing, and mitigating, acidic drainage. Specific requirements are listed under the two categories:

1. Material Characterization & Acidic Drainage Prediction:
• geology and mineralogy;
• static tests to measure material composition;
• kinetic tests to measure reaction rates and drainage chemistry;
• assessment of waste materials and site components; and
• interpretation of geochemical results.

2. Mitigation:
• flooding of mine wastes and workings;
• measures to reduce infiltration of drainage and/or oxygen entry;
• drainage treatment;
• addition of neutral materials; and
• desulphurization of tailings.

When developing or reviewing mining plans, this list can be used to identify what factors to consider and any outstanding information requirements. While this list will help ensure all relevant issues are addressed, it is only intended as a starting point. For any particular site, many of the listed factors or information requirements may not be relevant. Similarly, there will be instances where additional information requirements and factors must be considered. Users are encouraged to adapt the generic suggestions presented here to their own site and requirements, incorporating appropriate site-specific performance measures.