| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| 1 | Public network | 4346 | 4329 |
57.7%
|
| 2 | Porous Cesspit | 2206 | 2252 |
30%
|
| 3 | Tight cesspit | 910 | 881 |
11.7%
|
| 4 | None | 41 | 41 |
0.6%
|