| Value | Category | Cases | |
|---|---|---|---|
| 1 | Public sewage system | 1286 |
5.1%
|
| 2 | Private sewage system | 1573 |
6.2%
|
| 3 | Tank | 2145 |
8.4%
|
| 4 | Pipe connected to a stream | 48 |
0.2%
|
| 5 | Hole/ground absorbency | 5816 |
22.9%
|
| 6 | N/A or none found | 13840 |
54.4%
|
| 97 | Other | 342 |
1.3%
|
| 98 | Don't know | 392 |
1.5%
|