Yukon-koyukuk Census Area County, Alaska
36 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| Grayling Water System | 207 | Surface Water | 2,197 | 113 |
| Chalkyitsik Village Water | 76 | Surface Water | 395 | 89 |
| Galena Wtp1 - City | 490 | Groundwater | 120 | 80 |
| Mcgrath Water System | 341 | Surface Water | 153 | 37 |
| Yksd - Allakaket School | 52 | Groundwater Under Influence | 262 | 35 |
| Too'gha Inc - in Tanana | 271 | Surface Water | 368 | 21 |
| Minto Community Water System | 205 | Groundwater | 666 | 17 |
| Koyukuk Safewater Facility | 85 | Groundwater | 244 | 14 |
| Kaltag Public Water System | 214 | Groundwater Under Influence | 107 | 14 |
| Hughes Public Water Supply | 107 | Groundwater Under Influence | 372 | 12 |
| Shageluk Water System | 60 | Groundwater | 325 | 12 |
| Rampart Washeteria | 88 | Groundwater | 302 | 9 |
| Circle Washeteria | 110 | Groundwater | 270 | 9 |
| Arctic Village Water System | 175 | Surface Water | 435 | 8 |
| Venetie Water System | 181 | Groundwater Under Influence | 285 | 7 |
| Monroes Monderosa | 78 | Groundwater | 8 | 6 |
| Allakaket Public Water System | 135 | Groundwater | 443 | 5 |
| Ruby Water System | 215 | Groundwater | 179 | 5 |
| Anvik Water System | 96 | Groundwater | 511 | 4 |
| Stevens Village Water System | 28 | Groundwater | 122 | 4 |
| Nulato River Well | 245 | Groundwater | 21 | 3 |
| Coldfoot Cafe | 120 | Groundwater | 5 | 3 |
| Manley Community Water System | 95 | Groundwater | 7 | 2 |
| Beaver Water System | 80 | Groundwater | 121 | 1 |
| Huslia Public Water System | 323 | Groundwater | 77 | 1 |
| Holy Cross Water System | 182 | Groundwater | 43 | 1 |
| The Inn at Coldfoot | 120 | Groundwater | 5 | 1 |
| Blm Arctic Interagency Visitor Center | 130 | Groundwater | 3 | 1 |
| Takotna Water System | 70 | Surface Water | 630 | 0 |
| Ft. Yukon Public Water System | 665 | Groundwater Under Influence | 54 | 0 |
| Galena Wtp2 - Gila | 290 | Groundwater | 48 | 0 |
| Nenana Municipal Water | 486 | Groundwater | 18 | 0 |
| Yukon River Camp | 59 | Groundwater | 10 | 0 |
| Yksd - Merreline Kangas / Ruby | 40 | Groundwater | 6 | 0 |
| Taiga Ventures - Birch Creek Camp 4a | 34 | Surface Water | 0 | 0 |
| Taiga Ventures - Birch Creek Camp 6a | 34 | Surface Water | 0 | 0 |