Mikrobiologická kvalita pitné vody

In this thesis, the knowledge about problematics of drinking water, with a focus on microbiology of drinking water, was summarized. The aim of this thesis was to analyse indicator microorganisms in ten samples of water. Four samples came from water wells, three samples were from water mains and there were three samples from bottled water. The microbiological analyze was conducted in two periods, namely in summer of 2018 and in winter of 2019. The results were evaluated in statistics and there was detected, if there is any difference in number of microorganisms in the summer and in the winter and also if there is a statistically significant difference between the given types of water. Most microorganisms were in raw water. Only one water of the wells water fulfilled microbiological requirements for drinking water. It was detected that there is no statistically significant difference in number of microorganisms in summer and in winter. In the total amount of microorganisms, there is a difference between water of wells and bottled water, and between water coming from water main and bottled water