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

analyte Nickel pH Value Selenium

last sample

MB08-D MB08-D MB08-D MB08-D MB08-D MB08-D

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 18 18/09/2024 18 18/09/2024 18 18/09/2024 18 18/09/2024 18 18/09/2024 18 18/09/2024 18 18/09/2024 18 18/09/2024 18 18/09/2024 18 18/09/2024 18 18/09/2024 17 18/09/2024 18 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

24 24 24 22 24 24 24 24 24 24 24 24 24 24 24 24 24 24 22 24 24 18 18 18 18 18 18 18 18 18 18 18 18 17 18 18 24 24 24 24 24 24 24 24 24 24 24 24 22 24 24

2.75 0.09 0.54 0.91 0.15 3.16 1.18 0.55 1.45 0.55 2.04 3.20 0.14 0.00 1.21 0.51 0.06 0.00 0.91 0.09 1.15 0.23 0.26 0.09 0.59 0.06 0.10 0.06 0.30 0.08 0.07 0.02 0.62 0.90 0.04 0.08 0.79 0.36 0.08 1.39 0.24 0.17 0.27 0.53 0.42 0.19 0.08 0.45 0.91 0.34 0.08

62 -20 -21 11

93.4% Probably Increasing

68.0% Stable 68.9% Stable 61.0% No trend 81.2% No trend 98.8% Increasing 81.9% No trend 65.3% Stable 63.5% No trend 57.8% Stable 68.9% No trend 52.0% No trend 86.1% No trend 49.0% Stable 64.4% No trend 62.5% No trend 87.2% Stable

Total Cyanide

Total Dissolved Solids @18 18/09/2024 24

37 91

Zinc

MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB09 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB11 MB14 MB14 MB14 MB14 MB14 MB14 MB14 MB14 MB14 MB14 MB14 MB14 MB14 MB14 MB14

Aluminium Arsenic Cadmium Chromium

-38 -17 -15

-9

Cobalt Copper

-21

3

45

Electrical Conductivity @ 2518/09/2024 24

Lead

0

Manganese

16 14

Nickel

pH Value Selenium

-47

0

49.0% Stable 61.0% No trend 59.7% No trend 97.1% Increasing 98.2% Increasing 94.1% Probably Increasing 90.6% Probably Increasing 99.6% Increasing 72.5% Stable 86.2% No trend 99.1% Increasing 99.0% Decreasing 77.3% No trend 48.5% Stable 94.4% Probably Increasing

Total Cyanide

11 64 11 51 56 36 68 30 43 63 -17 -62

Total Dissolved Solids @18 18/09/2024 24

Zinc

Aluminium Arsenic Cadmium Chromium

Cobalt Copper

Electrical Conductivity @ 2518/09/2024 18

Lead

Manganese

Nickel

21

pH Value Selenium

0 8

60.3% No trend 70.1% No trend 66.0% No trend 54.5% No trend 99.8% Decreasing 85.0% Stable 100.0% Decreasing 100.0% Decreasing 99.7% Decreasing 85.5% Stable 98.5% Increasing 100.0% Decreasing 99.2% Decreasing 99.3% Decreasing 61.0% No trend 87.2% Stable 99.9% Decreasing

Total Cyanide

14 12

Total Dissolved Solids @18 18/09/2024 18

Zinc

4

Aluminium Arsenic Cadmium Chromium

-116

-43

-133

-65

94.4% Probably decreasing

Cobalt Copper

-134 -108 -44 88 -97 -53 -98 11 -134

Electrical Conductivity @ 2518/09/2024 24

Lead

Manganese

Nickel

pH Value Selenium

90.1% Probably decreasing

Total Cyanide

Total Dissolved Solids @18 18/09/2024 24

-47

Zinc

18/09/2024 24

-118

page 2 of 2

Powered by