. Author manuscript; available in PMC: 2020 Apr 28.

Published in final edited form as: Int J Hyg Environ Health. 2015 Jun 30;218(7):627–638. doi: 10.1016/j.ijheh.2015.06.007

Table 4.

Microbiological assay results.

				Median	95% Confidence Interval for Median		Mean	95% Confidence Interval for Mean
Water Type	Pathogen	Minimum	Maximum	Estimate	Lower Bound	Upper Bound	Estimate	Lower Bound	Upper Bound
Neighbourhood Boreholes^*	E. coli^***	<2.2	9.2	1.1	.	.	1.5	0.8	2.1
	Giardia^**	<0.017	<0.088	0.026	0.023	0.029	0.028	0.021	0.036
	P. aeruginosa^***	<2.2	>16	1.1	.	.	3.5	1.4	5.6
Irrigation Channel^*	E. coli^***	240	>1600	1600	967	2233	1204	949	1460
	Giardia^**	1.2	98	24.0	0.0	62.5	36.3	9.9	62.6
	P. aeruginosa^***	4	>1600	540	0	1180	878	547	1208
New Treatment Plant^*	E. coli^***	<2.2	<2.2	1.1	.	.	1.1	1.1	1.1
	Giardia^**	0.059	4.8	3.3	0	10.3	2.4	1.1	3.6
	P. aeruginosa^***	<2.2	>16	1.1	.	.	2.4	1.0	3.8
Old Treatment Plant^*	E. coli^***	<2.2	>16	1.1	.	.	1.8	0.6	3.0
	Giardia^**	0.11	2.8	0.74	0.52	0.96	1.13	0.53	1.74
	P. aeruginosa^***	<2.2	>16	1.1	.	.	3.3	1.3	5.4
Shallow Wells^*	E. coli	<3	>1600	350	0	781	537	200	874
	Giardia	<0.01	7.5	0.11	0.00	0.38	1.12	0.00	2.91
	P. aeruginosa	<2.2	>1600	5	0	16	424	0	934

^{* -}

Drinking water samples corresponding to the referenced sample locations

^{** -}

Units of cysts/L

^{*** -}

Units of MPN/100L