Public Water Systems
2,332 active public water systems in CT, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
| Weideles Pizza & Pub (Oneco Commons) | Sterling, CT | 37 | 37 | - |
| 773 Quinebaug Road | Thompson, CT | 37 | 25 | - |
| Rockville Fish and Game - Trap and Skeet | Coventry, CT | 37 | 0 | - |
| 1189 Wolcott Road | Wolcott, CT | 37 | 18 | - |
| 55-69 Nott Highway | Ashford, CT | 36 | 15 | - |
| Mallory Brook Plaza - Well #1 | Farmington, CT | 36 | 49 | - |
| Orchard House-Indian Rock Nature Preserv | Bristol, CT | 36 | 11 | - |
| 39 Hop Brook RD - Apt Complex | Danbury, CT | 36 | 603 | - |
| 180 Cherry Brook Road - Canton | Torrington, CT | 36 | 45 | - |
| 184 Great Plain Road | Sherman, CT | 36 | 113 | - |
| Ridgewood Hills Association System 1 | Killingworth, CT | 36 | 712 | - |
| North Greenwich Congregational Church | Greenwich, CT | 36 | 46 | - |
| Hubbard Hill Apartments | Canterbury, CT | 36 | 66 | - |
| Village Hill Apartments | Willimantic, CT | 36 | 502 | - |
| White Memorial Conf. Ctr & Museum | Litchfield, CT | 36 | 22 | - |
| Jessica's Garden | Marlborough, CT | 36 | 4 | - |
| Green Acres Mart | North Haven, CT | 36 | 0 | - |
| Rosabianca Vineyards | Northford, CT | 36 | 4 | - |
| 10-16 Putnam Road | Central Village, CT | 36 | 10 | - |
| Brookscrossing Apartments | Putnam, CT | 36 | 653 | - |
| 162 Baker Road | Roxbury, CT | 36 | 124 | - |
| Bernhardt Meadow | Roxbury, CT | 36 | 65 | - |
| Putnam Preschool and Childcare, LLC. | Putnam, CT | 36 | 7 | - |
| U.S. Department of Agriculture - Tolland | Tolland, CT | 36 | 21 | - |
| Fawn Ridge Association Inc. | Charlton, CT | 36 | 1,282 | - |
| Lombard Ford | Winsted, CT | 35 | 10 | - |
| Danbury Animal Hospital | Bethel, CT | 35 | 6 | - |
| United Methodist Church | Bolton, CT | 35 | 8 | - |
| Bridgewater Village Store | Bridgewater, CT | 35 | 16 | - |
| Brookfield Office Park Association | Danbury, CT | 35 | 261 | - |
| Landmark Office Condo Association | Brookfield, CT | 35 | 99 | - |
| 292 Candlewood Lake RD | Brookfield, CT | 35 | 28 | - |
| Canton Professional Building | West Hartford, CT | 35 | 276 | - |
| Evergreen Springs - System #2 | Farmington Hills, CT | 35 | 22 | - |
| Scotties Frozen Custard | Colchester, CT | 35 | 40 | - |
| Boa Plaza | Danbury, CT | 35 | 153 | - |
| Brignole Vineyards, LLC | East Granby, CT | 35 | 16 | - |
| Farmington Polo Grounds | Cheshire, CT | 35 | 69 | - |
| 260 Route 32 | North Franklin, CT | 35 | 0 | - |
| 659 Voluntown Road | Griswold, CT | 35 | 101 | - |
| Comcast Cablevision | Berlin, CT | 35 | 214 | - |
| Gr Companies, Inc. | Groton, CT | 35 | 0 | - |
| Stonehurst at Hampton Valley – Barn | North Windham, CT | 35 | 8 | - |
| Kent Falls Brewing Company | Kent, CT | 35 | 68 | - |
| Railside Tavern | Dayville, CT | 35 | 8 | - |
| 163 Route 81 | Killingworth, CT | 35 | 0 | - |
| 1 Ferry Road | East Haddam, CT | 35 | 28 | - |
| North Madison Congregational Church | Madison, CT | 35 | 157 | - |
| 500 Purdy Hill Road | Monroe, CT | 35 | 20 | - |
| Great Hollow Lake | Monroe, CT | 35 | 33 | - |