| Value | Category |
|---|---|
| 01 | Tap inside house |
| 02 | Tap inside compound |
| 03 | Street tap / tap outside compound |
| 04 | Spring / well, built |
| 05 | Spring / well, natural (not built) |
| 06 | Rain water |
| 07 | River |
| 08 | Lake / waterhole / pond / surface water |
| 09 | Others |
| 98 | Unknown |
| 99 | NIU (not in universe) |