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Table 3

Laboratory test results of bacteriological drinking water quality in food establishments of Addis Ababa, Ethiopia (n = 123)

Fecal coliforms (CFU/100 mL) at 44.5 °CFrequencyPer centWHO standard in number of fecal coliforms (n)
Growth of any microorganisms in the presumptive test Yes 45 36.6 
No 78 63.4  
Mean of fecal coliforms/colony count per 100 m Mean 8.20 
Having confirmed fecal coliforms Yes 35 28.5 
No 88 71.5  
Fecal coliforms (CFU/100 mL) at 44.5 °CFrequencyPer centWHO standard in number of fecal coliforms (n)
Growth of any microorganisms in the presumptive test Yes 45 36.6 
No 78 63.4  
Mean of fecal coliforms/colony count per 100 m Mean 8.20 
Having confirmed fecal coliforms Yes 35 28.5 
No 88 71.5  
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