Mine water

Ditch-/storm water

Affected ground-water 1 - 13

Unaffected ground-water 14 - 18

Unit

072001

072002

072003

072004

072005

072006

Median

Average

Median

Average

Ca

mg/L

142

204

207

85.3

66.6

145

72.2

78.7

12.8

31.8

Mg

mg/L

44.7

50.3

50.5

32.2

20.6

34.7

14.5

20.3

1.86

3.44

Na

mg/L

6.35

9.46

9.46

6.23

13.3

14.5

6.00

6.94

2.21

2.13

K

mg/L

4.85

5.78

5.74

3.16

3.69

6.53

4.08

4.80

1.71

2.42

Fe

mg/L

1.59

16.1

15.3

0.24

0.48

0.38

0.20

2.74

0.02

0.20

Al

mg/L

23.8

15.3

14.9

28.6

9.31

33.0

11.7

15.0

0.082

0.40

Mn

mg/L

3.49

4.81

4.91

1.58

1.13

2.12

1.00

1.27

0.013

0.036

Turbidity

FNU

0.38

75.5

106

4.3

33.5

84.5

175

438

11

41

El. Cond

µS/cm

1150

1350

1350

869

613

1140

689

671

120

201

pH

4.6

5.6

5.8

4.8

5.6

5.2

5.2

5.0

6.5

6.6

Alk.

mg HCO3/L

<1.0

9.65

12

<1.0

23

<1.0

6.35

13.2

26.5

65.9

Sulphate

mg/L

684

421

422

517

294

674

325

345

19

23.2

As

µg/L

<1

1.19

<1

<1

<1

<1

<1

<1

<1

<1

Cd

µg/L

44.1

22.8

22.7

22.5

6.11

26.8

7.55

13.1

0.14

0.15

Co

µg/L

70.7

42.9

43.3

59.5

35.6

53.1

15.8

32.8

0.17

0.29

Cr

µg/L

<0.5

<0.5

<0.5

<0.5

<0.5

2.53

0.97

0.97

0.62

0.62

Cu

µg/L

3430

2085

1825

12,800

5160

9310

2050

4330

16.7

18.5

Ni

µg/L

6.54

6.00

5.80

7.02

4.17

8.27

8.82

12.8

1.98

2.31

Pb

µg/L

384

470

292

531

2.98

88.6

4.21

13.9

0.56

0.60

Zn

µg/L

24,000

19,700

19,500

11,200

3310

14,200

4390

7700

47.6

94.7