Quality and Safety of Rural Community Drinking Water Sources in Guto Gida District, Oromia, Ethiopia

Table 2

Overall mean total coliform and faecal coliform counts of rural community drinking water sources in the Guto Gida district.

Parameters	Water sources
	Unprotected well	Unprotected spring	Protected well	Protected spring	value
n	8	8	8	8	—
TC (CFU/100 mL) ± SE	51.4 ± 25.1^a	41.3 ± 17.6^a	6.62 ± 4.10^b	18.25 ± 8.4^b	<0.01
FC (CFU/100 mL) ± SE	11.46 ± 6.16^a	10.4 ± 5.86^a	1.50 ± 1.10^b	1.84 ± 2.21^b	<0.01

Data are average of 8 samples; SE: standard error; numbers indicated by the same letter superscripts within the same row do not vary significantly by Duncan’s multiple range test at ; TC: total coliform; FC: faecal coliform.