In this study, microbiological quality of drinking water deriving from the private wells Koprivnica-Križevci County was investigated. A total 287 samples different locations were collected during 2018 and analysed for following parameters: coliforms, Escherichia coli, Enterococcus spp., Clostridium perfringens, Pseudomonas aeruginosa, number aerobic heterotrophic bacteria at 36 °C 22 °C. The re...