| Value | Category |
|---|---|
| -2 | don't know |
| -1 | refuse |
| 1 | Irrigation channel |
| 2 | Underground |
| 3 | Well |
| 4 | River, spring, lake |
| 5 | Pumping station |
| 6 | Central water supply |
| 7 | Reservoir |
| 8 | Lagoon |
| 10 | Don't need |
| 12 | None of them |
| 13 | Bore |
| 14 | Lead to the yard by tubes from spring |
| 15 | Bring by cistern |
| Sysmiss |