We found 17 public water systems that could serve the same population as Grahn Elementary School (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Rattlesnake Ridge Water District | Grayson | 11,567 | 17 | 22 |
| Grayson Utility Commission | Grayson | 10,950 | 19 | 35 |
| Olive Hill Municipal Water Works | County of Carter | 6,192 | 0 | 52 |
| Us Army Corps Engrs Grayson Lk | Grayson | 1,000 | 0 | 0 |
| Grayson Lake State Park | Olive Hill | 400 | 0 | 0 |
| Carter Caves Golf Course Plant | Olive Hill | 370 | 0 | 0 |
| Olive Hill/carter Caves Plant | Olive Hill | 370 | 0 | 0 |
| Camp Robert C Webb | County of Carter | 250 | 0 | 13 |
| Star Elementary School | Grayson | 250 | 0 | 0 |
| Willard Elementary School | Grayson | 205 | 0 | 0 |
| Upper Tygart Elementary School | County of Carter | 200 | 0 | 0 |
| Carter Elementary School | Carter | 149 | 0 | 0 |
| Burchetts Trailer Park | Olive Hill | 100 | 0 | 0 |
| Grayson Coal Co | Grayson | 30 | 0 | 0 |
| Hwy 7 Restaurant | Grayson | 30 | 0 | 0 |
| Kiser's Restaurant | Carter | 30 | 0 | 0 |
| Kathys Bakery | Bruin | 25 | 0 | 0 |