Original EA Amendment

Heritage Minerals MMM EA Compliance Review

Appendix D - Mann-Kendall Trend Analysis Output Table

no samples

no MK samples Coef Vari

Mann Kendall S Confidence Trend

bore MB02 MB02 MB02 MB02 MB02 MB02 MB02 MB02 MB02 MB02 MB02 MB02 MB02 MB02 MB02

analyte

last sample

Aluminium Arsenic Cadmium Chromium

18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 22 18/09/2024 24 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 6 3/03/2023 5 3/03/2023 6 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 22 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 22 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 22 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24 18/09/2024 24

24 24 24 24 24 24 24 24 24 24 24 24 22 24 24

0.27 0.64 0.25 0.41 0.27 0.30 0.09 1.06 0.15 0.28 0.40 0.38 0.91 0.13 0.24 0.58 0.85 0.59 0.64 0.48 1.32 0.44 0.93 0.51 0.59 0.10 1.08 0.99 0.52 0.62 0.27 0.25 0.17 0.93 0.37 0.24 0.11 0.64 0.19 0.13 0.12 0.70 0.91 0.18 0.16 0.54 0.37 0.18 1.23 0.62 0.52 0.22 1.20 0.21 0.25 0.12 0.71 0.91 0.37 0.16 0.17 0.22 0.06 0.16 0.08 0.10 0.05 0.67 0.11 0.08 0.02 0.65 0.91 0.07 0.09 4.17 0.88 2.89 0.54 3.04 4.04 0.13 0.20 0.55

3

52.0% No trend 83.8% No trend 84.4% Stable 51.0% No trend 85.5% Stable 83.1% Stable 73.8% No trend 58.7% Stable 58.7% No trend 81.2% Stable 86.1% No trend 61.0% No trend 58.7% No trend

41 -42 -44 -40 27 61 2 -10 -37 45 11 10 -61 10

Cobalt Copper

Electrical Conductivity @ 2518/09/2024 24

Lead

93.1% Probably Increasing

Manganese

Nickel

pH Value Selenium

Total Cyanide

Total Dissolved Solids @18 18/09/2024 24

Zinc

93.1% Probably decreasing

MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB04-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-D MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB05-S MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB07-D MB08-D MB08-D MB08-D MB08-D MB08-D MB08-D MB08-D MB08-D MB08-D

Aluminium Arsenic Cadmium Chromium

6 6 6 6 6 6 6 6 6 6 6 6 5 6 6

-3 -9 -9 -9 -7 -9 -9 -9 9

64.0% Stable

93.2% Probably decreasing

-11

97.2% Decreasing

93.2% Probably decreasing 93.2% Probably decreasing 93.2% Probably Increasing 93.2% Probably decreasing 93.2% Probably decreasing 93.2% Probably decreasing 86.4% Stable 86.4% No trend 50.0% No trend 75.8% No trend 86.4% Stable 86.4% Stable 71.4% Stable 85.5% No trend 99.9% Decreasing 96.5% Decreasing 60.6% Stable 99.9% Increasing 58.7% Stable 58.7% Stable 100.0% Increasing 75.4% Stable 61.0% No trend 93.1% Probably decreasing 94.1% Probably decreasing

Cobalt Copper

Electrical Conductivity @ 253/03/2023 6

Lead

Manganese

Nickel

pH Value Selenium

7

-1

Total Cyanide

4

Total Dissolved Solids @18 3/03/2023 6

-7 -7

Zinc

Aluminium Arsenic Cadmium Chromium

24 24 24 24 24 24 24 24 24 24 24 24 22 24 24 24 24 24 24 24 24 24 24 24 24 24 24 22 24 24 24 24 24 24 24 24 24 24 24 24 24 24 22 24 24 24 24 24 24 24 24 24 24 24

-24

44

-127 -61 -64 -74 -12 120 -10 -10 172 -29 11 -26 -23 -99 -12 -14 -42 2 22 34 65 53 64 -6 11 -5 -20 -68 72 -10 86 -46 87 101 -101

Cobalt Copper

Electrical Conductivity @ 2518/09/2024 24

Lead

Manganese

Nickel

pH Value Selenium

Total Cyanide

Total Dissolved Solids @18 18/09/2024 24

73.0% Stable 70.6% Stable 51.0% No trend 69.7% No trend 99.4% Decreasing 60.6% No trend 62.5% Stable 84.4% Stable 79.1% No trend

Zinc

Aluminium Arsenic Cadmium Chromium

Cobalt Copper

Electrical Conductivity @ 2518/09/2024 24

Lead

94.4% Probably Increasing 90.1% Probably Increasing 94.1% Probably Increasing

Manganese

Nickel

pH Value Selenium

68.0% Stable 54.9% Stable 61.0% No trend 53.9% Stable 95.2% Decreasing 96.1% Increasing 58.7% Stable 99.4% Decreasing 98.3% Increasing 86.6% Stable 98.4% Increasing 99.4% Increasing 99.7% Increasing 86.1% No trend 70.6% Stable 61.0% No trend 96.3% Increasing 79.1% No trend 74.6% No trend 85.0% Stable 89.6% No trend 68.9% Stable 86.6% No trend 66.2% No trend 96.1% Increasing 68.9% Stable 52.9% No trend

Total Cyanide

Total Dissolved Solids @18 18/09/2024 24

Zinc

Aluminium Arsenic Cadmium Chromium

Cobalt Copper

Electrical Conductivity @ 2518/09/2024 24

Lead

108 -59 -59 45 -23 11 73 34 -28 -43 52 -21 46 18 72 -21

Manganese

92.5% Probably decreasing 92.5% Probably decreasing

Nickel

pH Value Selenium

Total Cyanide

Total Dissolved Solids @18 18/09/2024 24

Zinc

Aluminium Arsenic Cadmium Chromium

Cobalt Copper

Electrical Conductivity @ 2518/09/2024 24

Lead

Manganese

4

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