| Distance from landfill | Frequency | Percentage (%) |
| Less than 50 m | 11 | 10.7 |
| 50 - 100 m | 34 | 33.0 |
| 101 - 500 m | 30 | 29.1 |
| 501 - 1 km | 22 | 21.4 |
| 1 km - 2 km | 1 | 1.0 |
| Above 2 km | 5 | 4.9 |
| Total | 103 | 100.0 |