Table 4.

Number of samples, E. coli positives, and geometric mean E. coli concentration (MPN/100 mL) by water source type in rural Artibonite Department in May of 2012

Water source type	Number (%)	E. coli positive number (%)	Geometric mean concentration	95% Confidence interval for geometric mean
Improved	55 (50.9)	28 (50.9)	2.5	1.4–4.4
Public tap/fountain /kiosk	28 (25.9)	22 (78.6)	6.5	2.6–15.9
Borehole with handpump	18 (16.7)	3 (16.7)	0.7	0.5–1.0
Protected spring	2 (1.8)	2 (100)	57.4	–
Private kiosk (vended water)	6 (5.5)	0 (0)	0.5	0.5–0.5
Piped water into plot	1 (0.9)	1 (100)	2.0	–
Unimproved	53 (49.1)	44 (83.0)	54.2	23.0–127.3
Unprotected spring	33 (30.5)	24 (72.7)	20.7	6.8–63.2
River/canal	6 (5.6)	6 (100)	1,681.4	646.0–4,377
Dug well*	14 (13.0)	14 (100)	119.6	31.3–456.9
Total	108 (100)	72 (66.7)	11.3	6.3–20.2

^*Not sufficiently protected to be considered improved water sources.