| Value | Category |
|---|---|
| 1 | public utility (electrogaz) |
| 2 | ordinary (hand-dug) water well |
| 3 | improved (drilled) water well |
| 4 | unprotected water (river, stream, lake) |
| 5 | protected spring water |
| 6 | unprotected spring water |
| 7 | purchased tap water |
| 8 | public fountain (free) |
| 9 | rainwater |
| 10 | other |