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 ± 0.02^b	2.4 ± 0.30^a	17.5 ± 1.5^ab	0.75 ± 0.15^ab	3.61 ± .49^ab	0.06 ± 0.00^a	20 ± 1.5^de	0
	S2	0.50 ± 0.22^b	1.50 ± 0.40^b	19.5 ± 4.5^a	0.85 ± 0.15^a	6 ± 0.55^a	0.12 ± 1.15^c	21 ± 1.1^de	2 ± 0.2^c
	S3	0.60 ± 0.02^b	1.51 ± 0.15^b	22 ± 1.0^a	0.90 ± 0.00^a	4.4 ± 0.60^a	0.20 ± 3.05^c	20 ± 0.5^de	0
02	S1	0.67 ± 0.03^b	1.30 ± 0.05^b	16 ± 2.0^b	0.75 ± 0.05^ab	2.2 ± 1.1^b	0.12 ± 0.07^c	40 ± 1.7^cd	3 ± 0.5^bc
	S2	0.50 ± 0.01^b	1.30 ± 0.17^b	11 ± 3.0^c	0.80 ± 0.30^a	3.2 ± 1.75^b	0.04 ± 0.36^c	23 ± 1.13^de	0
	S3	0.42 ± 0.02^b	1.30 ± 0.10^b	18 ± 1.0^a	0.85 ± 0.04^a	3.1 ± 2.10^b	0.07 ± 0.41^c	41 ± 2.5^cd	4 ± 0.4^bc
03	S1	1.30 ± 0.2^a	1.20 ± 0.10^b	18.5 ± 0.5^a	0.85 ± 0.05^a	3 ± 1.35^b	0.8 ± 0.15^a	34 ± 1.9^d	0
	S2	1.10 ± 0.34^a	1.85 ± 0.06^a	17 ± 1^ab	0.51 ± 0.23^b	3 ± 0.8^b	0.9 ± 0.12^a	65 ± 1.5^bc	5 ± 0.6^bc
	S3	0.70 ± 0.12^b	1.75 ± 0.15^a	14 ± 1^ab	0.90 ± 0.05^a	3 ± 0.60^b	0.8 ± 0.12^a	55 ± 5.7^c	2 ± 0.2^bc
04	S1	0.78 ± 0.19^b	1.70 ± 0.10^a	26 ± 2^a	0.7 ± 0.20^ab	3.6 ± 0.5^ab	0.1 ± 0.02^c	52 ± 5.0^c	0
	S2	0.51 ± 0.01^b	1.50 ± 0.15^b	19 ± 1.1^a	0.75 ± 0.05^ab	5.7 ± 0.40^a	0.3 ± .05^b	35 ± 1.4^d	0
	S3	0.51 ± 0.07^b	1.15 ± 0.10^b	14 ± 0.7^b	0.71 ± 0.01^ab	2.2 ± 0.20^b	0.0	23 ± 5.7^de	5 ± 0.5^bc
05	S1	0.73 ± 0.17^b	1.15 ± 0.06^b	18.5 ± 2.5^a	0.75 ± 0.15^ab	4.4 ± 0.06^a	0.01 ± 0.06^c	15 ± 2.6^e	0
	S2	0.73 ± 0.11^b	1.75 ± 0.05^a	16.5 ± 4.0^b	0.85 ± 0.05^a	3.5 ± 0.20^ab	0.01 ± 0.00^c	14 ± 6.4^e	2 ± 0.12^bc
	S3	0.64 ± 0.02^b	2.00 ± 0.15^a	16.5 ± 1.5^b	0.80 ± 0.10^a	3.4 ± 0.40^b	0.51 ± 0.03^b	16 ± 6.5^e	5.5 ± 0.5^bc
06	S1	0.41 ± 0.07^b	2.00 ± 0.11^a	16 ± 3^b	0.65 ± 0.15^b	3.5 ± 0.55^ab	0.35 ± 0.27^b	22 ± 1.50^de	0
	S2	0.42 ± 0.01^b	2.50 ± 0.30^a	20.5 ± 0.5^a	0.65 ± 0.06^b	3 ± 1.15^b	0.02 ± 0.10^c	28 ± 0.7^de	2.5 ± 0.3^bc
	S3	0.85 ± 0.02^a	1.80 ± 0.15^a	23.5 ± 0.6^a	0.85 ± 0.09^a	3 ± 0.45^b	0.40 ± 0.02^b	23 ± 9.3^de	0
07	S1	0.75 ± 0.05^b	1.50 ± 0.01^b	25 ± 1^a	0.75 ± 0.21^ab	3.75 ± 0.5^ab	0.03 ± 0.01^c	26 ± 0.8^d	0
	S2	0.74 ± 0.15^b	1.30 ± 0.1^b	18.5 ± 0.1^a	1.00 ± 0.30^a	3 ± 0.36^b	0.45 ± 0.25^b	30 ± 1.6^d	0
	S3	0.90 ± 0.01^a	1.75 ± 0.10^a	16 ± 1^b	0.86 ± 0.01^a	2.4 ± 0.26^b	0.04 ± 0.01^c	41 ± 7.6^cd	0
08	S1	0.85 ± 0.25^a	1.75 ± 0.17^a	17.5±2.7^ab	0.65 ± 0.06^b	2.75 ± 0.20^b	0.01 ± 0.00^c	40 ± 1.15^cd	0
	S2	0.75 ± 0.27^b	1.65 ± 0.10^a	13.5 ± 0.5^c	0.35 ± 0.20^b	2.5 ± 0.15^a	0.20 ± 0.02^c	60 ± 4.6^bc	22.5 ± 0.8^a
	S3	0.51 ± 0.47^b	1.50 ± 0.1^a	14 ± 2^b	0.71 ± 0.09^ab	4.4 ± 0.05^a	0.03 ± 0.16^c	95 ± 2.8^a	0
09	S1	0.50 ± 0.15^b	1.35 ± 0.01^b	17.5 ± 2.5^a	0.70 ± 0.04^ab	4.25 ± .55^a	0.0	78 ± 1.5^b	0
	S2	0.72 ± .25^b	1.49 ± 0.25^b	19 ± 1^a	0.50 ± 0.11^b	5.5 ± 1.40^a	0.01 ± 0.00^c	60 ± 1.70^bc	0
	S3	0.53 ± 0.06^b	1.55 ± 0.06^b	16 ± 2^a	0.90 ± 0.05^a	5.75 ± 0.20^a	0.01 ± 0.00^c	62 ± 2.8^bc	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 .