| Value | Category | 
|---|---|
| 00 | NIU (not in universe) | 
| 10 | Connected to sewage system or septic tank | 
| 11 | Sewage system (public sewage disposal) | 
| 12 | Septic tank (private sewage disposal) | 
| 20 | Not connected to sewage disposal system | 
| 99 | Unknown | 
| var_concept.title | Vocabulary | 
|---|---|
| Utilities Variables -- HOUSEHOLD | IPUMS |