| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | sewer system | 33 |
0.2%
|
| 2 | closed drainage | 212 |
1.6%
|
| 3 | open drainage | 167 |
1.3%
|
| 4 | sump | 204 |
1.5%
|
| 5 | gully mouth | 23 |
0.2%
|
| 6 | pond/river | 5 |
0%
|
| 7 | unprotected hole | 390 |
2.9%
|
| 8 | neighborhood | 6469 |
48.8%
|
| 9 | compound (yard) | 1545 |
11.7%
|
| 10 | street | 4169 |
31.5%
|
| 96 | other | 34 |
0.3%
|