Bacteriological Contamination of Drinking Water Supply from Protected Water Sources to Point of Use and Water Handling Practices among Beneficiary Households of Boloso Sore Woreda, Wolaita Zone, Ethiopia

Table 5

Water quality level for the sources and household storage.

Type of water source	E. coli level per 100 ml water sample
	Excellent (A) (<1)	Acceptable (B) (1–10)	Unacceptable (C) (11–50)	Grossly contaminated (D) (51–100)	>100	Total sample
Protected hand-dug well	2 (40%)	2 (40%)	1 (20%)	0	0	5 (27.78%)
Shallow well	2 (40%)	2 (40%)	0	0	1 (20%)	5 (27.78%)
Protected spring	6 (75%)	1 (12.5%)	1 (12.5%)	0	0	8 (44.44%)
Total	10 (56%)	5 (28%)	2 (11%)		1 (5%)	18 (100%)
Household water storage quality level (n = 75)	7 (9%)	38 (51%)	21 (28%)	3 (4%)	6 (8%)	75 (100%)

Lloyd and Helmer (1991)—water quality risk category.