Microbiological analyses of 77 water samples were taken from drinking water distribution points (stainless steel storage tanks located outside shops) conducted from Al Buraij, Al Nussierat and Al Salga area Fig. 3. Contamination was found in stainless steel distribution tanks, where out of the 77 samples tested, total coliforms were present in 58 samples with 28 samples revealing low levels of contamination (less than 10 colonies per 100 ml), 20 samples revealing medium levels of contamination (between 11 and 100 colonies per 100 ml), and 10 samples revealing high levels of contamination (more than 100 colonies per 100 ml). In addition to this, 20 samples showed the presence of fecal coliforms, 18 samples with less than 10 colonies per 100 ml, and two samples revealed medium levels of contamination (between 11 and 100 colonies per 100 ml). Also 21 samples showed the presence of fecal streptococcus, and 3 samples revealed a value higher than 100 colonies per 100 ml, while 18 samples revealed levels of contamination from 1 to 100 colonies per 100 ml as shown in Table 2.