Original EA Amendment

Appen d ix A - Tabulated Groundwater Chemistry Results

Heritage Minerals MMM EA Compliance Review

Total Dissolved Solids Aluminium Arsenic Cadmium Chromium Cobalt

Electrical Conductivity

pH Value

Copper

Lead Manganese Nickel

Selenium Zinc Total Cyanide

units pH Unit

µS/cm

mg/L

WQO lower WQO upper

7.5 8.1

2,765 12,300 13,400 13,500 13,400 14,000 13,400 12,300 13,600 13,900 14,600 14,200 14,100 14,300 14,500 14,400 14,600 15,300 13,800 14,400 14,400 14,000 13,600 13,600 14,200 9,230 5,700 7,620 8,740 9,550 8,820 9,490 10,300 10,100 10,600 11,200 11,400 10,800 11,100 10,800 11,100 10,600 9,120 9,740 10,000 9,640 9,440 10,000 10,400

1,797 26,900 26,900 28,100 28,600 30,900 29,700 29,100 30,800 30,700 31,700 31,800 33,300 30,600 31,500 32,700 35,500 31,200 30,800 30,600 27,300 31,100 32,200 30,200 29,400 12,400 6,440 9,590 11,700 13,000 12,100 14,400 13,600 13,600 13,600 15,400 14,400 14,400 14,800 15,700 15,300 14,000 12,900 12,700 12,800 12,700 12,800 12,900 12,500

0.055 1580 1990 2150 2080 2120 1950 2060 2240 2030 2130 2430 2560 3590 2500 2560 2310 2480 2410 2450 1970 2950 2060 2020 2170 14.2 0.42 0.12 0.01 0.03 0.04 0.1

0.013 0.043 0.019 0.036 0.032 0.024 0.03 0.031 0.028 0.023 0.036 0.026 0.028 0.023 0.033 0.03 0.03 0.03 0.033 0.027 0.03 0.05 0.031 0.029 0.024 0.002

0.0002 0.0688 0.0662 0.0676 0.0618 0.0612 0.0597 0.0686 0.0642 0.0634 0.0635 0.0634 0.0673 0.0619 0.069 0.0635 0.0655 0.066 0.0642 0.0626 0.0606 0.0615 0.0539 0.0555 0.0017 0.132 0.0666 0.0012 0.0015 0.0014 0.06 0.0016 0.0016 0.0015 0.0014 0.0022 0.002 0.002 0.0023 0.0027 0.0024 0.0037 0.0019 0.0014 0.0019 0.002 0.0018 0.0023 0.0026

0.001 0.068 0.072 0.078 0.074 0.067 0.055 0.103 0.066 0.076 0.074 0.076 0.08 0.071 0.074 0.1 0.079 0.067 0.094 0.095 0.093 0.092 0.097 0.075 0.08

0.001 3.48 3.45 3.53

0.0014

0.0034 <0.010 0.006 <0.005 <0.005 0.003 0.006 0.005 0.002 0.005 0.002 0.004 <0.005 0.005 <0.010 0.005 0.006 0.016 <0.010 0.014 0.008 0.006 0.017 0.009 0.005 <0.001 0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001

1.9

0.011 0.689 0.626 0.659 0.61 0.604 0.671 0.69 0.567 0.624 0.744 0.622 0.606 0.663 0.61 0.6 0.698 0.571 0.614 0.644 0.628 0.61 0.63 0.522 0.542 0.006 0.497 0.276 0.01 0.005 0.005 0.007 0.007 0.006 0.006 0.009 0.006 0.008 0.008 0.013 0.009 0.016 0.013 0.013 0.01 0.008 0.007 0.009 0.018

0.011 <0.10 0.05 0.08 <0.05 <0.05 0.03 0.03 0.16 0.03 <0.05 0.14 <0.10 0.09 <0.10 <0.05 0.04 0.04 0.05 0.07 0.05 0.05

0.008 18.2 19.3 19.8

0.007

MB07-D 31/08/2022 3.13 MB07-D 6/10/2022 3.23 MB07-D 3/11/2022 3.19 MB07-D 6/12/2022 3.24 MB07-D 31/01/2023 3.21 MB07-D 3/03/2023 3.47 MB07-D 13/04/2023 3.24 MB07-D 30/05/2023 3.17 MB07-D 28/06/2023 3.26 MB07-D 27/07/2023 3.18 MB07-D 31/08/2023 3.16 MB07-D 19/09/2023 3.22 MB07-D 19/10/2023 3.25 MB07-D 23/11/2023 3.21 MB07-D 19/12/2023 3.25 MB07-D 23/01/2024 3.26 MB07-D 22/02/2024 3.26 MB07-D 20/03/2024 3.21 MB07-D 29/04/2024 3.23 MB07-D 20/05/2024 3.29 MB07-D 11/06/2024 3.3 MB07-D 25/07/2024 3.2 MB07-D 21/08/2024 3.22 MB07-D 18/09/2024 3.2 MB08-D 31/08/2022 7.48 MB08-D 6/10/2022 4.8 MB08-D 3/11/2022 6.82 MB08-D 6/12/2022 7.72 MB08-D 31/01/2023 7.41 MB08-D 3/03/2023 6.54 MB08-D 13/04/2023 8.2 MB08-D 30/05/2023 7.41 MB08-D 28/06/2023 6.99 MB08-D 27/07/2023 6.98 MB08-D 31/08/2023 6.63 MB08-D 19/09/2023 7.53 MB08-D 19/10/2023 6.87 MB08-D 23/11/2023 6.92 MB08-D 19/12/2023 6.73 MB08-D 23/01/2024 8.3 MB08-D 22/02/2024 6.92 MB08-D 20/03/2024 6.92 MB08-D 29/04/2024 6.77 MB08-D 20/05/2024 7.5 MB08-D 11/06/2024 7.04 MB08-D 25/07/2024 6.8 MB08-D 21/08/2024 7.07 MB08-D 18/09/2024 6.75

34.2 35.9 34.2 32.7 26.7 35.4 37 34.3 36.2 40.1 39.7 40.3 37.9 40.1 37.4 40.6 40.1 41.1 39.8 39.7 42.9 32.4 35.5 126 27.6 34

83.6 96.6 98.5 87.8 84.7 107 92.8 85.9 92.1 106 89.6 100 97.5 100 97.9 110 79.6 86.6 88.2 79.7 94.2 83.7 66.1 12.9 78.4 45.9 1.02 20.3 21.5 22.8 25.8 78 22.3 19.8 33.4 24.5 28.1 31.1 31.2 33.8 36.9 27.4 12.1 23.2 17.2 20.2 26.5 16

<0.004 <0.004 <0.004 <0.004 <0.020 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.020 <0.004 <0.004 <0.004 <0.004 <0.020 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.020 <0.004 <0.004 <0.004 - - <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.020 <0.004 <0.004 <0.004 <0.004 <0.020 <0.004 <0.004 -

3.23 3.18 3.47 3.11 3.46 3.93 3.8 3.48 3.73 3.59 3.65 3.54

18.2 16.8 16.9 19.8 17.6 18.4 20.8 19.9 21.3 19.5 22.1 19.4 21.3 17.6 20.1 21.3 18.7 19.6 20.6 15.9

3.21

3.5

3.44 3.45 3.46 3.44 2.81 3.03

0.04 0.03 0.05

17.4 0.082 18.3 8.92 0.067 0.073 0.097 0.167 0.102 0.123 0.115 0.153 0.13 0.161 0.169 0.276 0.198 0.282 0.17 0.148 0.183 0.146 0.146 0.215 0.242

<0.001 0.002 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001

0.012 1.71 0.888 0.006 0.005 0.006 0.007 0.006 0.005 0.008 0.059 0.01 0.008 0.008 0.023 0.014 0.094 0.05 0.011 0.014 0.006 0.008 0.018 0.04

0.036

<0.01 0.02 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01

0.003 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001

0.047 0.005 0.099 0.028 0.009 0.025 0.015 0.007 0.015 0.014 0.033 0.143 0.036 0.217 0.042 0.056 0.061 0.013 0.019 0.135 0.103

0.1

0.03 0.13 0.05 0.16 0.14 0.05 0.07 0.1 0.08 0.12 0.14 0.01 0.05 0.11 0.3

<0.01