| Dumpsite/garbage collection area | Area in Nairobi | Location | Average CFUs | Category of CFU | Dumpsite/garbage collection area characteristics |
| Muthurwa estate dumpsite | East | Residential | 8.2 × 1010 | High | Fecal contamination, Domestic/Rodents |
| Umama garbage collection area (Komarock) | North Western | Residential | 7.9 × 1010 | High | Seepage, Fecal contamination, |
| Kawangware market dumpsite | East | Market | 7.7 × 1010 | High | Fecal contamination, Domestic/Rodents |
| Kenyatta staff quarter garbage collection area | South | Market | 7.3 × 1010 | High | Seepage, Fecal contamination, Domestic/Rodents, Human activity |
| Kweria garbage collection area | Central | Residential | 7.2 × 1010 | High | Fecal contamination, Domestic/Rodents, Human activity |
| City market garbage collection area | Central | Market | 6.7 × 1010 | High | seepage, Human activity |
| Central police garbage collection area | West | Residential | 6.1 × 1010 | High | Seepage |
| Kibera dumpsite | South | Residential | 5.0 × 1010 | High | Seepage, Fecal contamination, Domestic/Rodents, Human activity |
| Kenyatta market dumpsite | South | Residential | 5.0 × 1010 | High | Seepage, Fecal contamination, Domestic/Rodents, Human activity |
| City park market dumpsite | South Western | Market | 2.0 × 1010 | High | Seepage, Domestic/Rodents, Human activity |
| Muthurwa market garbage collection area | East | Residential | 1.8 × 1011 | Low | Fecal contamination, Human activity |
| Mareba garbage collection area (Kibera) | South Eastern | School | 1.5 × 1011 | Low | Fecal contamination, Domestic/Rodents, Human activity |
| Ayany dumpsite | South Eastern | Residential | 1.5 × 1011 | Low | Seepage, Human activity |
| Ngara market garbage collection area | West | Residential | 1.4 × 1011 | Low | Fecal contamination, Domestic/Rodents |
| Masai market dumpsite | West | Market | 1.2 × 1011 | Low | Human activity |
| District Commissioner garbage collection area (Kibera) | South | Residential | 1.2 × 1011 | Low | Seepage, Fecal contamination, Human activity |
| Dandora dumpsite | North Western | Residential | 1.1 × 1011 | Low | Seepage, Fecal contamination, Domestic/Rodents, Human activity |