| Value | Category |
|---|---|
| 11 | Piped into dwelling |
| 12 | Piped into yard or plot |
| 13 | Public tap/standpipe |
| 21 | Tubewell/borehole |
| 31 | Protected well |
| 32 | Unprotected well |
| 41 | Protected spring |
| 42 | Unprotected spring |
| 51 | Rainwater collection |
| 61 | Tanker-truck |
| 71 | Cart with small tank/drum |
| 81 | Surface water |
| 91 | Bottled water |
| 96 | Other |
| 99 | Missing |
| Sysmiss |