Variables
Stations
Production drinking water
Drinking water
Aquatic life
D1
D2
D3
D4
D5
D6
D7
FQWS
WHO, 2011
CCME
TDS
Max - Min
29.3 - 17
29 - 16
31.5 - 16.5
33 - 16.7
43 - 16
60 - 16
35 - 17
300
1000
-
Moy ± SD
22.78 ± 3.61
22.25 ± 3.33
22.87 ± 4.02
23.15 ± 4.45
25.66 ± 6.98
27.42 ± 12.00
26.08 ± 4.77
pH
Max - Min
7.15 - 4.79
7.31 - 4.79
7.15 - 4.82
7.16 - 4.96
7.43 - 5.05
6.71 - 4.85
6.75 - 4.84
6.5 - 8.5
6.5 - 9
6.5 - 9
Moy ± SD
6.19 ± 0.19
6.00 ± 0.72
5.97 ± 0.72
5.8 ± 0.66
5.67 ± 0.76
5.51 ± 0.57
5.65 ± 0.59
DO (mg/L)
Max - Min
9 - 4.59
7.70 - 4.66
7.7 - 3.8
7.17 - 4.60
7.8 - 3.6
7.90 - 3.53
6.44 - 2.54
5
5
5
Moy ± SD
6.28 ± 0.42
6.04 ± 1.03
5.75 ± 1.25
5.88 ± 0.78
5.36 ± 1.16
5.00 ± 1.23
4.95 ± 1.20
DBO5 (mg/L)
Max - Min
10 - 3.11
12.92 - 1.84
8.54 - 2.27
16.34 - 4.16
13.6 - 1.6
20.3 - 2.7
17.8 - 16.8
3
5
-
Moy ± SD
6.35 ± 2.60
5.67 ± 3.25
5.69 ± 2.52
9.53 ± 1.27
7.96 ± 4.08
7.71 ± 5.18
11.72 ± 6.62
NO3-N (mg/L)
Max - Min
8.83 - 0.34
8.70 - 0.01
10.2 - 0.9
11.33 - 0.43
16 - 0.2
16.40 - 0.80
14.30 - 3.00
50
50
2.9
Moy ± SD
3.77 ± 2.60
3.53 ± 2.52
3.85 ± 2.80
3.83 ± 3.60
5.85 ± 4.98
7.22 ± 5.69
8.4 ± 3.81
NO2-N (µg/L)
Max - Min
50 - 9
66 - 4
44 - 7.5
47 - 10
92 - 1
77 - 13
69 - 12
100
100
60
Moy ± SD
23.0 ± 11.9
23.83 ± 18.75
20.80 ± 12.10
20.64 ± 10.60
31.00 ± 25.78
42.25 ± 18.85
28.16 ± 17.63
NH4 - N (mg/L)
Max - Min
0.295 - 0.076
0.44 - 0.07
0.28 - 0.04
0.38 - 0.09
0.68 - 0.08
1.22 - 0.07
0.85 - 0.04
4
0.5
0.47
Moy ± SD
0.201 ± 0.07
0.19 ± 0.10
0.17 ± 0.07
0.19 ± 0.08
0.25 ± 0.19
0.32 ± 0.36
0.33 ± 0.24
NTK (mg/L)
Max - Min
24.33 - 2.33
39 - 2
30 - 1.5
30.67 - 1
30 - 2
25 - 4
27 - 7
3
-
1
Moy ± SD
12.36 ± 7.66
15,42 ± 11,90
12.37 ± 9.82
13.08 ± 8.57
15.50 ± 8.60
13.58 ± 7.13
16.33 ± 6.85
PO4-P (mg/L)
Max - Min
0.60 - 0.04
0.75 - 0.02
0.67 - 0.04
0.57 - 0.04
1.2 - 0.01
1.13 - 0.13
0.77 - 0.05
0.5
0.5
Moy ± SD
0.29 ± 0.16
0.31 ± 0,20
0.28 ± 0.18
0.30 ± 0.18
0.42 ± 0.38
0.43 ± 0.28
0.38 ± 0.24
TP (mg/L)
Max - Min
15.6 - 0.12
0.1 - 31.4
16.45 - 0.16
15.67 - 0.20
22.9 - 0.01
12.1 - 03.71
1.7 - 0.24
0.7
-
0.5
Moy ± SD
5.38 ± 5.57
5.79 ± 2.57
4.88 ± 1.63
5,05 ± 1.57
6.42 ± 2.24
4.39 ± 4.36
2.87 ± 3.46
(mg/L)
Max - Min
20.21 - 1.02
42.72 - 0.25
19.57 - 3.76
20.93 - 2.97
28.02 - 2.01
96.24 - 1.87
135.73 - 1.14
250
250
-
Moy ± SD
10.86 ± 5.86
12.99 ± 11.15
10.55 ± 4.56
10.88 ± 5.60
11.32 ± 7.81
26.49 ± 10.01
34.03 ± 11.26
Hg (µg/L)
Max - Min
0.94 - 0.11
1.03 - 0.05
0.74 - 0.05
1.04 - 0.14
0.95 - 0.12
0.63 - nd
0.94 - 0.04
1
6
0.1
Moy ± SD
0.37 ± 0.21
0.62 ± 0.43
0.37 ± 0.29
0.65 ± 0.44
0.71 ± 0.39
0.36 ± 0.30
0.51 ± 0.42
Pb (µg/L)
Max - Min
7.12 - 0.38
2.21 - 3.28
3.96 - 0.23
4.14 - 0.15
17.05 - 0.53
2.6 - 1.31
1.08 - 1.11
50
10
4
Moy ± SD
3.46 ± 2.79
2.67 ± 0.44
1.74 ± 1.83
2.31 ± 2.06
7.52 ± 3.45
1.83 ± 0.63
3.72 ± 4.90
Cd (µg/L)
Max - Min
0.13 - nd
0.08 - nd
0.16 - 0.07
0.32 - 0.07
0.35 - 0.02
1.03 - 0.09
0.09 - 0.04
5
3
0.18
Moy ± SD
0.07 ± 0.06
0.05 ± 0.03
0.12 ± 0.04
0.20 ± 0.12
0.16 ± 0.15
0.06 ± 0.020
0.36 ± 0.45
As (µg/L)
Max - Min
10.25 - 0.24
0.07 - 5.03
2.65 - 0.14
18.75 - 0.03
10.34 - 0.23
2.43 - nd
1.98 - 0.06
10
10
50
Moy ± SD
3.27 ± 2.34
1.86 ± 1.46
1.59 ± 1.26
9.40 ± 5.34
4.89 ± 2.54
0.85 ± 1.10
1.08 ± 0.86