| Value | Category |
|---|---|
| 10 | PIPED WATER |
| 11 | Aqueduct. Public net |
| 12 | Rural aqueduct |
| 13 | Other source, by tub |
| 14 | Public tap |
| 20 | WELL WATER |
| 21 | Well |
| 30 | SURFACE WATER |
| 31 | River, spring |
| 40 | RAIN WATER |
| 41 | Rain water |
| 50 | TANKER TRUCK |
| 51 | Tanker truck |
| 70 | OTHER SOURCE |
| 71 | Other |