2024-11-27_REVISION - M2016081 (4)

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EXHIBIT G (D) Water Discharge Management Plan Table G.(D).1- Water Discharge Management Plan addresses runoff from disturbed areas, piled materials, and operating surfaces in disturbed areas. Minimal water will be used, primarily for dust control and essential operational needs. The wash plant will recirculate water and utilize man-made containment to further minimize discharge, ensuring sustainable water management practices. TABLE G.(D).1-Water Discharge Management Plan Plan Step Component 1 Mining Block Location a Conduct an analysis of the geography and hydrology of the mining site. • Identify water sources for mining and potential runoff areas. • Consider the selection of the mining block's location with a focus on placing it to avoid all riparian habitats and other ecologically sensitive areas. 2 Wash Plant Location a Select sites with high water absorption and low run-off potential. • Avoid steep pitches,select areas that are generally flat. 3 Wash Plant Design a Avoidance of tailing and settling ponds. • Efficient use water re-circulation using manufactured water storage,dewatering and thickener technology. • Dewatering technology including dewatering cyclones,dewatering screens and press filters will be used to deliver a dry stackable tailings product. • Discharge of thickener underflow;dewatered and discharged into general sand tailings pile. • Any associated petrol chemicals will be stored in double containment. 4 Processed Ore/Stacked material 0 Selection of site based on high porosity,level ground. • Construction of bermed embankments surrounding the stacked washed ore. • Silt Fencing:Installing silt fences around the perimeter of the sand storage area can help contain sediment-laden water and prevent it from entering nearby water bodies. • Berms:berms surrounding stacked material will help redirect runoff away from sensitive areas and towards treatment or containment areas. • Water Collection:Any runoff water will be collected and for reuse in industrial processes can reduce the volume of runoff and lower the demand for fresh water. • Spill Prevention and Control:Implementing measures to prevent and control spills of oils,chemicals,or other contaminants that might mix with runoff. 5 Dewatering Operations Management a Select appropriate dewatering techniques for placer mining. • Monitor active processing operations to determine areas of water loss and improvement. • Monitor water quality. • Allow for continuous feedback from plant managers. • Log key events and metrics in a database. 6 Runoff Management for Disturbed Areas • Implement erosion control methods. • Construct sediment basins or ponds for runoff treatment. • Allow for continuous feedback from plant managers. • Log key events and metrics in a database. 7 Water Treatment for Mining Effluents a Detailed treatment processes for mining pollutants. • Use of non-toxic flocculants settling of colloids in thickener. • Monitoring,inspection,and documentation of all water treatment. • Monitor treated water to meet Colorado's standards. 8 Monitoring,Inspection,and a Rigorous monitoring of potential mining pollutants. Documentation a Maintain detailed records of treatment and water quality. 9 Post-Operation Water Management a Plan for site reclamation and stabilization. • Implement long-term water management strategies. • Seal bore holes 10 Regulatory Compliance and Reporting Adhere to Colorado mining and environmental regulations. • Develop a reporting system for local,state and federal compliance. 11 Emergency Response and Contingency a Develop a spill response plan. Plans a Procedures for notifying authorities in emergencies. 45 HARDROCK/METAL MINING REGULAR(112)APPLICATION Au Pt Industries LLC I PO Box 1424-Edwards,Colorado 81632 1970 306 1 784