The bacteriological analysis includes the testing of fecal and total coliforms populations in the water samples.
Previously sterilized borosilicate glass bottles of about 500 ml capacities were used. The cap was removed just
before sampling. The collected samples were immediately brought to the laboratory and analysed within four
hours. All the precautionary measures were taken during transportation and storage of the sample to avoid
contamination by other microbes and environmental factors.