We found 14 public water systems in Faulk county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Web Water Development Association | Aberdeen, Eureka | 14,000 | 39 | 4 |
| Faulkton | Faulkton | 736 | 0 | 7 |
| Thunderbird Hb Inc | County of Faulk | 120 | 0 | 0 |
| Brentwood Colony | Faulkton | 110 | 0 | 0 |
| Blumengard Colony | Aberdeen, Faulkton | 108 | 0 | 0 |
| Evergreen Colony | Aberdeen, Faulkton | 106 | 0 | 0 |
| Cresbard | Cresbard, Wecota | 104 | 0 | 0 |
| Brentwood Colony-soft | County of Faulk | 90 | 0 | 0 |
| Orient | County of Faulk | 57 | 0 | 0 |
| Rockham | County of Faulk | 48 | 0 | 0 |
| ZELL WATER COMPANY | County of Faulk | 42 | 0 | 0 |
| Seneca | Seneca | 38 | 0 | 0 |
| Onaka | County of Faulk | 26 | 0 | 0 |
| Gfp 3-g/lake Faulkon | County of Faulk | 25 | 0 | 0 |