| Value | Category | Cases | |
|---|---|---|---|
| 1 | Public network | 1322 |
41.1%
|
| 2 | Absorption pit | 1344 |
41.7%
|
| 3 | Sealed pit | 507 |
15.7%
|
| 4 | None | 43 |
1.3%
|
| Sysmiss | 4 |