Supporting Technical Assessments

Sample Origin Sample Name Column Set-Up 1836721 09-Nov2021 1838001 19-Nov2021 1838178 24-Nov2021 1838286 02-Dec2021 1838667 13-Dec2021 1838692 20-Dec2021 1838749 30-Dec2021 1838757 06-Jan2022 Date and Time 10/21/2021 8-Nov-21 19-Nov-21 24-Nov-21 2-Dec-21 13-Dec-21 20-Dec-21 30-Dec-21 6-Jan-22 Laboratory Reference - 2763341.1 2773857.2 2778761.1 2787988.1 2798790.1 2807535.1 2815489.2 2823026.2 Field Parameters FLS Electrical Conductivity mS/m - 149.7 225.7 280.9 469.6 991.7 FLS pH pH Units - 3.99 3.78 4.77 4.65 4.65 3.51 2.12 FLS Temperature °C - 21.3 24.1 19.7 17.7 17.7 24.2 19.2 Acidity and Alkalinity Acidity (pH 3.7) /m3 as CaCO - 1.0 1.0 1.0 1.0 1.0 780 Alkalinity - Total /m3 as CaCO - 3.4 1.0 1.0 1.0 1.0 1.0 Dissolved Heavy Metals and Trace Elements Aluminium-Dissolved g/m3 - 0.004 105 196 1,280 290 Antimony-Dissolved g/m3 - 0.0002 0.002 0.0004 0.002 0.004 Arsenic-Dissolved g/m3 - 0.103 0.162 0.21 0.029 0.83 4 0.153 64 Barium-Dissolved g/m3 - 0.005 0.016 0.021 0.012 0.005 Cadmium-Dissolved g/m3 - 0.00005 0.0088 0.0154 0.0083 0.115 0.066 0.0049 0.0191 Calcium-Dissolved g/m3 - 0.35 52 86 - 510 310 Chromium-Dissolved g/m3 - 0.023 0.168 0.29 0.121 2 2.1 0.151 1.06 Cobalt-Dissolved g/m3 - 0.0002 0.59 1.05 6.5 0.91 Copper-Dissolved g/m3 - 0.028 1.69 3.4 1.63 21 18.2 1.14 5.4 Iron-Dissolved g/m3 - 0.02 71 122 670 1,050 Lead-Dissolved g/m3 - 0.0001 0.0013 0.0016 0.0002 0.0029 0.001 0.001 0.001 Magnesium-Dissolved g/m3 - 0.11 32 52 250 33 Manganese-Dissolved g/m3 - 0.0051 6.8 11.1 67 7.5 Mercury-Dissolved g/m3 - 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00008 0.00015 Molybdenum-Dissolved g/m3 - 0.0002 0.002 0.0004 0.002 0.02 Nickel-Dissolved g/m3 - 0.0005 0.2 0.34 0.173 2.3 1.22 0.099 0.33 Potassium-Dissolved g/m3 - 0.17 31 58 310 68 Selenium-Dissolved g/m3 - 0.001 0.01 0.013 0.11 0.019 Silver-Dissolved g/m3 - 0.0001 0.001 0.0002 0.001 0.001 Sodium-Dissolved g/m3 - 0.81 29 45 220 13 Strontium-Dissolved g/m3 - 0.0008 0.44 0.72 4.1 0.8 Sulphate g/m3 - 5 940 1,640 114 1,110 1,240 Uranium-Dissolved g/m3 - 0.00002 0.046 0.088 0.58 0.14 Vanadium-Dissolved g/m3 - 0.006 0.064 0.24 Zinc-Dissolved g/m3 - 0.065 9.4 16.4 8.5 104 45 5 19.6 Laboratory Field Parameters pH(pH units) pH units - 6 4.2 4.1 4.5 4 2.4 Electrical Conductivity (mS/m) - 1 141.8 216 26.2 155.9 259 Leachate Volume in Tubing mL 80 100 200 200 Volume in Bucket mL - 500 40 330 Volume Sampled mL - 2,100 1,000 400 350 580 100 240 530 Notes NES - Not enough to sample Cells shaded yellow are below the laboratory limit of reporting Figure 1. EG-Vein (Northern Area) Column Results

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