“…In line with other studies (Pinto et al, 2012;Prest et al, 2014;Wu et al, 2015) phyla such as Proteobacteria, Actinobacteria, Firmicutes, Cyanobacteria, Bacteroidetes, and Nitrospirae were commonly found in the water samples investigated. As also observed in this study, several studies have identified Proteobacteria as the most abundant phylum in aquatic environments within the drinking water production industry (Bautista-de los Santos et al, 2016;El-Chakhtoura et al, 2015;Liu et al, 2014;Vaz-Moreira, Nunes, & Manaia, 2017;Zanacic, McMartin, & Stavrinides, 2017). It is clear from our results that the bacterial community composition of surface water strongly differs from those of the other water types studied.…”