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Abstract
One hundred water samples were collected from five swimming pools at 1989 summers mounths for bacteriological examination.
Membrane filtration and MPN procedures were used in this work, a high percentage of the samples were polluted with certain indicater bacteria like Staphylococcus aureus. Streptococcus faecalis and Pseudononas aerusinosa.
Swimming pool No. l showing the lowest count of total coliforas. Escherichia coli. Streptococcus faecalis. Staphylococcus aureus and Pseudononas aeruninosa. while the swimming pool No.4 showing the highest count (except Pseudononas aeruninosa 1 of the above nicroorganisms.
The levels of free chlorine (0.0–0.36 mg/1) seems to be failure to remove E. coli or other coliforms which were more sensetive to chlorine.