The aim of this study is to evaluate the presence of bacteria from the Enterobacteriaceae family (i.e. total coliforms, thermotolerant coliforms and Escherichia coli) in different types of recycled waters (grey water, rain water and reclaimed water from the public city fountains) and problems with their detection (especially ensitivity and specificity of detection methods). The species composition of coliform bacteria in purified grey waters with their antibiotic resistance are presented.
Enterococci, together with representatives of the species Escherichia coli, belong to the so-called indicators of faecal pollution, which are used in the evaluation of the microbiological quality of bathing waters. Their determination is governed by the Decree of the Ministry of Health No. 238/2011 Coll. and performed by culture on selective agar media.