Table 2.

Microbial counts (with IQR) per 100 ml in source water and membrane filtered water.

	2019		2020		2021
	Source	Filtered	Source	Filtered	Source	Filtered
Total coliforms	2399(732–5003)	0	82(25–146)	0	336(298–696)	0
Faecal coliforms	182(159–296)	0	11(9–20)	0	76(19–355)	0
E. coli	93(65–171)	0	4(2–8)	0	13(7–129)	0