We found 33 public water systems that could serve the same population as (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| New Britain Water Department | Berlin, Farmington, New Britain, Newington, Plainville, West Hartford | 73,534 | 31 | 7 |
| Valley Water Systems, Inc. | Bristol, Farmington, Plainville, Southington | 18,231 | 42 | 20 |
| Ctwc - Unionville System | Avon, Bristol, Farmington, Plainville | 14,693 | 60 | 4 |
| Avon Water Co | Avon, Farmington, Simsbury | 11,590 | 150 | 130 |
| Unionville Water Company - Fip System | Farmington | 1,000 | 0 | 0 |
| Ctwc - Chimney Hill | Farmington | 227 | 0 | 1 |
| Winding Trails Recreation Assn - Lower | Farmington | 207 | 0 | 2 |
| Winding Trails Recreation Assn - Upper | Farmington | 207 | 0 | 4 |
| Maple Ridge Farms Water Assn, Inc | Farmington | 140 | 0 | 0 |
| Farmington Club | Farmington | 100 | 0 | 0 |
| E.farmington Water Supply Assn, Inc. | Farmington | 72 | 0 | 0 |
| Gateway Christian School | Farmington | 57 | 0 | 0 |
| Farmington Polo Grounds | Farmington | 35 | 0 | 0 |
| 1097 Farmington Avenue | Farmington | 30 | 0 | 0 |
| Texaco Station | Farmington | 25 | 0 | 0 |
| Hill-stead Museum | Farmington | 25 | 0 | 0 |
| Farmington | 25 | 0 | 0 | |
| Farmington | 25 | 0 | 0 | |
| Farmington | 25 | 0 | 0 | |
| Farmington | 25 | 0 | 0 | |
| Farmington | 25 | 0 | 0 | |
| Farmington | 25 | 0 | 0 | |
| Farmington | 25 | 0 | 0 | |
| Tunxis Mead Rec. Area | Farmington | 25 | 0 | 0 |
| Riverfront Miniature Golf, Inc. | Farmington | 25 | 0 | 0 |
| Sharon Ball Field | Farmington | 25 | 0 | 0 |
| Farmington | 25 | 0 | 0 | |
| Red Oak Hill Swimming & Country Club | Farmington | 25 | 0 | 0 |
| Carol's Lunchbox | Farmington | 25 | 0 | 0 |
| Farmington Headquarters | Farmington | 25 | 0 | 0 |
| Farmington Field Club | Farmington | 25 | 0 | 0 |
| Copper Kettle Inc. | Farmington | 25 | 0 | 0 |
| Farmington | 25 | 0 | 0 |