We found 20 public water systems that could serve the same population as Cannonsburg Water District (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Ashland Water Works | Ashland | 44,402 | 36 | 104 |
| Big Sandy Water District | Catlettsburg | 13,044 | 105 | 36 |
| Ashland Water Works/catlettsbg | Ashland | 4,000 | 0 | 0 |
| Huntington Alloys Inc | Catlettsburg | 350 | 0 | 0 |
| Calgon Carbon Corp | Catlettsburg | 270 | 0 | 0 |
| Garner Elementary School | Rush | 186 | 0 | 0 |
| Diederich 4 H Center | Rush | 170 | 0 | 0 |
| Lakewood Village Water Plant | Catlettsburg | 132 | 0 | 0 |
| Durbin Elementary | Catlettsburg | 120 | 0 | 0 |
| Twin Valley Golf Course | Ashland | 100 | 0 | 0 |
| Rolling Meadows Golf Course | Ashland | 100 | 0 | 0 |
| Ponderosa Golf Course | Ashland | 100 | 0 | 0 |
| Cedar Knoll Golf Course | Ashland | 100 | 0 | 0 |
| Rankins Grocery And Restaurant | Ashland | 100 | 0 | 0 |
| Cedar Knoll Golf Restaurant | Ashland | 60 | 0 | 0 |
| Sundowner Golf Course | Ashland | 50 | 0 | 0 |
| Tennesse Gas Pipeline | Catlettsburg | 35 | 0 | 0 |
| Columbia Gas Transmission Corp | Catlettsburg | 25 | 0 | 0 |
| Hack Estep Boys Home | Rush | 13 | 0 | 0 |
| Overland Dvpt/lockwood Estates | County of Boyd | 0 | 0 | 0 |