Vereeniging source water (A18)
Zuikerbosch source water (VD and Canal)
Mean
Median
Mode
Min
Max
SD
Mean
Median
Mode
Min
Max
SD
COD (mg/ℓ)
15
13
11
10
36
4.2
15
15
12
10
32
3.9
DOC (mg/ℓ)
5.8
5.5
6.0
3.6
10
1.27
5.7
5.7
5.7
3
8.8
1.3
Turbidity (NTU)
69
73
92
25
110
21.3
61
64
71
15
100
20.5
TOC (mg/ℓ)
6.4
6.2
6.5
2
10
1.64
6.0
6.0
5.1
2.2
19
2.3
(mg/ℓ)
-
-
-
-
-
-
-
-
-
-
-
-
(mg/ℓ)
0.42
0.39
0.43
0.05
2.6
0.35
0.40
0.38
0.38
0.1
1.6
0.2
(mg/ℓ)
-
-
-
-
-
-
-
-
-
-
pH
7.58
7.63
7.78
6.43
8.86
0.54
7.72
7.85
8.06
6.4
8.8
0.5
Conductivity (mS/m)
20
19
18
10
30
2.9
20
19
18
9.9
50
4.5
TDS
-
-
-
-
-
-
-
-
-
-
-
-
M-Alkalinity (mg/ℓ as CaCO3)
68
65
60
54
99
8.9
72
68.5
65
55
115
10.8
(mg/ℓ)
15
15
15
8.3
47
4.7
16
15
14
6.7
88
8.3
Na+ (mg/ℓ)
8.6
8.5
11
3.7
16
2.0
9.0
8.4
10
4.7
46
4.6
Cl− (mg/ℓ)
6.7
6.4
6.3
2.7
23
2.14
6.9
6.3
6.7
4.5
47
4.6