Microbiological Quality and Contamination Level of Water Sources in Isiolo County in Kenya

Table 9

Association between Residual chlorine, Escherichia coli, and coliforms in chlorinated Isiolo river water.

	Residual chlorine	Escherichia coli	Total coliforms
Residual chlorine	1	-0.678	-0.766
Escherichia coli	-0.678	1	0.893
Total coliforms	-0.766	0.893	1

N= 677; correlation is significant at the 0.01 level (2-tailed).