| Organism Identified | Total # of Samples = 500 (a) | |
| Number of Positive Samples for Each Organism (b = b1 + b2 + b3 + b4 + b5 + b6) | Percentage = bx/a × 100 | |
| E. coli | 315 | 63% |
| Enterobacter Sp. | 275 | 55% |
| Klebseilla oxytoca | 100 | 20% |
| K. pneumoniae | 60 | 12% |
| Proteus vulgaris | 40 | 8% |
| Citrobacter freundii | 39 | 8% |
| No Growth | 10 | 2% |