Assessment of Bacteriological and Physicochemical Quality of Drinking Water from Source to Household Tap Connection in Nekemte, Oromia, Ethiopia
Table 2
Bacteriological and chemical parameters analysis of household tap water.
Kebeles
Site
Fe+2 (mg/l)
Mn+2 (mg/l)
S04−2 (mg/l)
P04−3 (mg/l)
N03− (mg/l)
Cl2 (mg/l)
TC (CFU/100 ml)
FC (CFU/100 ml)
01
S1
0.5 ± 0.02b
2.4 ± 0.30a
17.5 ± 1.5ab
0.75 ± 0.15ab
3.61 ± .49ab
0.06 ± 0.00a
20 ± 1.5de
0
S2
0.50 ± 0.22b
1.50 ± 0.40b
19.5 ± 4.5a
0.85 ± 0.15a
6 ± 0.55a
0.12 ± 1.15c
21 ± 1.1de
2 ± 0.2c
S3
0.60 ± 0.02b
1.51 ± 0.15b
22 ± 1.0a
0.90 ± 0.00a
4.4 ± 0.60a
0.20 ± 3.05c
20 ± 0.5de
0
02
S1
0.67 ± 0.03b
1.30 ± 0.05b
16 ± 2.0b
0.75 ± 0.05ab
2.2 ± 1.1b
0.12 ± 0.07c
40 ± 1.7cd
3 ± 0.5bc
S2
0.50 ± 0.01b
1.30 ± 0.17b
11 ± 3.0c
0.80 ± 0.30a
3.2 ± 1.75b
0.04 ± 0.36c
23 ± 1.13de
0
S3
0.42 ± 0.02b
1.30 ± 0.10b
18 ± 1.0a
0.85 ± 0.04a
3.1 ± 2.10b
0.07 ± 0.41c
41 ± 2.5cd
4 ± 0.4bc
03
S1
1.30 ± 0.2a
1.20 ± 0.10b
18.5 ± 0.5a
0.85 ± 0.05a
3 ± 1.35b
0.8 ± 0.15a
34 ± 1.9d
0
S2
1.10 ± 0.34a
1.85 ± 0.06a
17 ± 1ab
0.51 ± 0.23b
3 ± 0.8b
0.9 ± 0.12a
65 ± 1.5bc
5 ± 0.6bc
S3
0.70 ± 0.12b
1.75 ± 0.15a
14 ± 1ab
0.90 ± 0.05a
3 ± 0.60b
0.8 ± 0.12a
55 ± 5.7c
2 ± 0.2bc
04
S1
0.78 ± 0.19b
1.70 ± 0.10a
26 ± 2a
0.7 ± 0.20ab
3.6 ± 0.5ab
0.1 ± 0.02c
52 ± 5.0c
0
S2
0.51 ± 0.01b
1.50 ± 0.15b
19 ± 1.1a
0.75 ± 0.05ab
5.7 ± 0.40a
0.3 ± .05b
35 ± 1.4d
0
S3
0.51 ± 0.07b
1.15 ± 0.10b
14 ± 0.7b
0.71 ± 0.01ab
2.2 ± 0.20b
0.0
23 ± 5.7de
5 ± 0.5bc
05
S1
0.73 ± 0.17b
1.15 ± 0.06b
18.5 ± 2.5a
0.75 ± 0.15ab
4.4 ± 0.06a
0.01 ± 0.06c
15 ± 2.6e
0
S2
0.73 ± 0.11b
1.75 ± 0.05a
16.5 ± 4.0b
0.85 ± 0.05a
3.5 ± 0.20ab
0.01 ± 0.00c
14 ± 6.4e
2 ± 0.12bc
S3
0.64 ± 0.02b
2.00 ± 0.15a
16.5 ± 1.5b
0.80 ± 0.10a
3.4 ± 0.40b
0.51 ± 0.03b
16 ± 6.5e
5.5 ± 0.5bc
06
S1
0.41 ± 0.07b
2.00 ± 0.11a
16 ± 3b
0.65 ± 0.15b
3.5 ± 0.55ab
0.35 ± 0.27b
22 ± 1.50de
0
S2
0.42 ± 0.01b
2.50 ± 0.30a
20.5 ± 0.5a
0.65 ± 0.06b
3 ± 1.15b
0.02 ± 0.10c
28 ± 0.7de
2.5 ± 0.3bc
S3
0.85 ± 0.02a
1.80 ± 0.15a
23.5 ± 0.6a
0.85 ± 0.09a
3 ± 0.45b
0.40 ± 0.02b
23 ± 9.3de
0
07
S1
0.75 ± 0.05b
1.50 ± 0.01b
25 ± 1a
0.75 ± 0.21ab
3.75 ± 0.5ab
0.03 ± 0.01c
26 ± 0.8d
0
S2
0.74 ± 0.15b
1.30 ± 0.1b
18.5 ± 0.1a
1.00 ± 0.30a
3 ± 0.36b
0.45 ± 0.25b
30 ± 1.6d
0
S3
0.90 ± 0.01a
1.75 ± 0.10a
16 ± 1b
0.86 ± 0.01a
2.4 ± 0.26b
0.04 ± 0.01c
41 ± 7.6cd
0
08
S1
0.85 ± 0.25a
1.75 ± 0.17a
17.5±2.7ab
0.65 ± 0.06b
2.75 ± 0.20b
0.01 ± 0.00c
40 ± 1.15cd
0
S2
0.75 ± 0.27b
1.65 ± 0.10a
13.5 ± 0.5c
0.35 ± 0.20b
2.5 ± 0.15a
0.20 ± 0.02c
60 ± 4.6bc
22.5 ± 0.8a
S3
0.51 ± 0.47b
1.50 ± 0.1a
14 ± 2b
0.71 ± 0.09ab
4.4 ± 0.05a
0.03 ± 0.16c
95 ± 2.8a
0
09
S1
0.50 ± 0.15b
1.35 ± 0.01b
17.5 ± 2.5a
0.70 ± 0.04ab
4.25 ± .55a
0.0
78 ± 1.5b
0
S2
0.72 ± .25b
1.49 ± 0.25b
19 ± 1a
0.50 ± 0.11b
5.5 ± 1.40a
0.01 ± 0.00c
60 ± 1.70bc
0
S3
0.53 ± 0.06b
1.55 ± 0.06b
16 ± 2a
0.90 ± 0.05a
5.75 ± 0.20a
0.01 ± 0.00c
62 ± 2.8bc
0
Note. Data are average of triplicates; SE: standard error; TC: total coliform; FC: faecal coliform; S: sampling site; CFU: colony forming unit; numbers indicated by the same letter superscripts do not vary significantly by Duncan’s multiple range test at .