National Water Act, 1998 (Act No. 36 of 1998)RegulationsWater Use Licence Application and Appeals Regulations, 2017AnnexuresAnnexure DThe Tables of Contents5 Geohydrology Report |
| 1. | Introduction |
| 2. | Geographical setting |
| 2.1 | Topography and drainage |
| 2.2 | Climate |
| 3. | Scope of Work |
| 4. | Methodology |
| 4.1 | Desk study |
| 4.2 | Hydro-census |
| 4.3 | Geophysical survey and results |
| 4.4 | Drilling and siting of boreholes |
| 4.5 | Aquifer testing |
| 4.6 | Sampling and chemical analysis |
| 4.7 | Groundwater recharge calculations |
| 4.8 | Groundwater modelling |
| 5.9 | Groundwater availability assessment |
| 5. | Prevailing groundwater conditions |
| 5.1 | Geology |
| 5.1.1 | Regional geology |
| 5.1.2 | Local geology |
| 5.2 | Acid generation capacity |
| 5.3 | Hydrogeology |
| 5.3.1 | Unsaturated zone |
| 5.3.2 | Saturated zone |
| 5.3.3 | Hydraulic conductivity |
| 5.4 | Groundwater levels |
| 5.5 | Groundwater potential contaminants |
| 5.6 | Groundwater quality |
| 6. | Aquifer Characterisation |
| 6.1 | Groundwater vulnerability |
| 6.2 | Aquifer classification |
| 6.3 | Aquifer protection classification |
| 7. | Groundwater Modelling |
| 7.1 | Software model choice |
| 7.2 | Model set -up and boundaries |
| 7.3 | Groundwater elevation and gradient |
| 7.4 | Geometric structure of the model |
| 7.5 | Groundwater sources and sinks |
| 7.6 | Conceptual model |
| 7.7 | Numerical model |
| 7.8 | Results of the model |
| 7.8.1 | Pre-facility (Mining/lndustry/ Wastewater treatment plant, etc) |
| 7.8.2 | During facility (mining/ Industry/ Wastewater treatment plant) operations |
| 7.8.3 | Post-facility (mining/ Industry/ Wastewater treatment plant) operation |
| 8. | Geohydrological Impacts |
| 8.1 | Construction phase |
| 8.1.1 | Impacts on Groundwater Quantity |
| 8.1.2 | Impacts on Groundwater Quality |
| 8.1.3 | Groundwater Management |
| 8.2 | Operational phase |
| 8.2.1 | Impacts on Groundwater Quantity |
| 8.2.2 | Impacts on Groundwater Quality |
| 8.2.3 | Impacts on Surface Water |
| 8.2.4 | Groundwater Management |
| 8.3 | Decommissioning phase |
| 8.4 | Post- mining phase |
| 8.4.1 | Groundwater Quantity |
| 8.4.2 | Groundwater Quality |
| 8.4.3 | Cumulative Impacts |
| 8.4.4 | Groundwater Management |
| 9. | Groundwater monitoring system |
| 9.1 | Groundwater monitoring network |
| 9.1.1 | Source, plume, impact and background monitoring |
| 9.1.2 | System response monitoring network |
| 9.1.3 | Monitoring frequency |
| 9.2 | Monitoring parameters |
| 9.3 | Monitoring boreholes |
| 10. | Groundwater Environmental Management Programme |
| 10.1 | Current groundwater conditions |
| 10.2 | Predicted impacts of facility (mining) |
| 10.3 | Mitigation measures |
| 10.3.1 | Lowering of groundwater levels during facility operation (Mining /Industry/ Wastewater treatment plant, etc |
| 10.3.2 | Rise of groundwater levels post-facility operation (Mining /Industry/ Wastewater treatment plant, etc |
| 10.3.3 | Spread of groundwater pollution post-facility operation (Mining /Industry/ Wastewater treatment plant, etc |
| 11. | Post Closure Management Plan |
| 11.1 | Remediation of physical activity |
| 11.2 | Remediation of storage facilities |
| 11.3 | Remediation of environmental impacts |
| 11.4 | Remediation of water resources impacts |
| 11.5 | Backfilling of the pits. |
| 12. | Conclusion and Recommendations |