| Treatment |
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| Passive |
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| 3.12.1a | Assessment of Existing Natural Wetlands Affected by Low pH, Metal Contaminated Seepages (Acid Mine Drainage) | Executive Summary | |
| 3.14.1 | Review of Passive Systems for Treatment of Acid Mine Drainage | Executive Summary | |
| 3.50.1 | Study to Identify BATEA for the Management and Control of Effluent Quality from Mines | Executive Summary | |
