Supporting Technical Assessments

Sample Origin Sample Name Column Set-Up 1836722 09-Nov2021 1838002 19-Nov2021 1838179 24-Nov2021 1838287 02-Dec2021 1838668 13-Dec2021 1838693 20-Dec2021 1838738 - 22Dec-2021 1838750 30-Dec2021 Sample Date and Time 10/21/2021 8-Nov-21 19-Nov-21 24-Nov-21 2-Dec-21 13-Dec-21 20-Dec-21 22-Dec-21 30-Dec-21 Laboratory Reference - 2763341.2 2773857.3 2778761.2 2787988.2 2798790.2 2807535.2 2812321.2 2815489.3 Field Parameters FLS Electrical Conductivity mS/m - 0.3 251.2 65.5 336.9 FLS pH pH Units - 3.96 4.07 4.96 5.09 3.28 FLS Temperature °C - 22.2 23.7 19.8 18.2 25.7 Acidity and Alkalinity Acidity (pH 3.7) /m3 as CaCO - 1.0 1.0 1.0 1.0 1.0 46 32 Alkalinity - Total /m3 as CaCO - 9.4 1.0 1.0 1.0 1.0 1.0 1.0 Dissolved Heavy Metals and Trace Elements Aluminium-Dissolved g/m3 - 0.012 230 70 166 230 Antimony-Dissolved g/m3 - 0.0003 0.002 0.0004 0.001 0.002 Arsenic-Dissolved g/m3 - 0.32 0.43 0.4 0.41 0.22 0.75 1.18 1.2 Barium-Dissolved g/m3 - 0.005 0.093 0.026 0.063 0.044 Cadmium-Dissolved g/m3 - 0.00005 0.106 0.029 0.09 0.09 0.082 0.062 0.055 Calcium-Dissolved g/m3 - 1.45 530 162 530 480 Chromium-Dissolved g/m3 - 0.071 0.053 0.061 0.039 0.023 0.047 0.075 0.078 Cobalt-Dissolved g/m3 - 0.0002 6.4 1.84 5.2 3 Copper-Dissolved g/m3 - 0.075 6 1.95 5.7 5.2 8.1 7.8 7.2 Iron-Dissolved g/m3 - 0.02 91 26 5.7 1 Lead-Dissolved g/m3 - 0.00013 0.0132 0.0028 0.0102 0.0101 0.006 0.0073 0.0083 Magnesium-Dissolved g/m3 - 0.35 480 144 330 200 Manganese-Dissolved g/m3 - 0.024 137 39 108 65 Mercury-Dissolved g/m3 - 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 Molybdenum-Dissolved g/m3 - 0.0002 0.002 0.0004 0.001 0.002 Nickel-Dissolved g/m3 - 0.0005 2.2 0.64 1.91 1.8 1.55 1.11 1.02 Potassium-Dissolved g/m3 - 0.57 380 110 340 270 Selenium-Dissolved g/m3 - 0.001 0.086 0.023 0.063 0.045 Silver-Dissolved g/m3 - 0.0001 0.001 0.0002 0.0005 0.001 Sodium-Dissolved g/m3 - 2.6 184 57 145 49 Strontium-Dissolved g/m3 - 0.003 3.8 1.06 3.2 1.94 Sulphate g/m3 - 6 2500 1,540 590 520 4,200 2400 Uranium-Dissolved g/m3 - 0.00002 0.136 0.042 0.131 0.163 Vanadium-Dissolved g/m3 - 0.002 0.005 0.01 Zinc-Dissolved g/m3 - 0.069 59 16.9 53 45 45 34 31 Laboratory Field Parameters pH(pH units) pH units - 6.4 4.1 4.7 4.5 4.3 3.6 3.7 Electrical Conductivity (mS/m) - 3.5 353 240 107.8 99.2 520 318 Leachate Volume in Tubing mL - 50 480 250 60 Volume in Bucket mL - 400 550 100 110 Volume Sampled mL - 1,200 1,000 350 450 450 1030 350 170 Notes NES - Not enough to sample Cells shaded yellow are below the laboratory limit of reporting Figure 2. EG-Vein (Southern Area) Column Results

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