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 |
| 66 Killingworth Road Higganum | Higganum, CT | 25 | 16 | - |
| Brooksvale Park-Veterans' Memorial Bldg | Hamden, CT | 25 | 156 | - |
| Brooksvale Park - Field House | Hamden, CT | 25 | 112 | - |
| Church of the Ascension | Hamden, CT | 25 | 4 | - |
| Goodwin Conservation Center | Portland, CT | 25 | 31 | - |
| Our Lady of Lourdes Catholic Church | Brooklyn, CT | 25 | 104 | - |
| Stonehurst at Hampton Valley – Inn | North Windham, CT | 25 | 16 | - |
| Haddam Senior Center | Haddam, CT | 25 | 71 | - |
| Haddam Town Office Building | Haddam, CT | 25 | 47 | - |
| Haddam Volunteer Fire Station #1 | Haddam, CT | 25 | 0 | - |
| Higgies Food and Ice Cream, LLC | Higganum, CT | 25 | 53 | - |
| 6 Hartland Boulevard | Barkhamsted, CT | 25 | 132 | - |
| Founders Congregational Church | Harwinton, CT | 25 | 26 | - |
| Harwinton Rod & Gun | Harwinton, CT | 25 | 5 | - |
| Immaculate Heart of Mary | Harwinton, CT | 25 | 14 | - |
| Gilead Congregational Church | Columbia, CT | 25 | 24 | - |
| Hebron Church of Hope | Hebron, CT | 25 | 18 | - |
| Camp Hemlocks - Easter Seals (Core Well) | Hartford, CT | 25 | 67 | - |
| 291 Church Street (Georgia's) | Amston, CT | 25 | 12 | - |
| Paradise Farms Plaza | Colchester, CT | 25 | 2 | - |
| St. Peters Episcopal Church | Hebron, CT | 25 | 12 | - |
| Blackledge Country Club | Hebron, CT | 25 | 0 | - |
| Tallwood Country Club | Hebron, CT | 25 | 1 | - |
| Town Office Buildings | Hebron, CT | 25 | 50 | - |
| Church of the Holy Family | Hebron, CT | 25 | 12 | - |
| Blackledge East LLC | Hebron, CT | 25 | 6 | - |
| Twin Lakes Cafe | Hebron, CT | 25 | 32 | - |
| The Worship Center | 99 Marjorie Circle, CT | 25 | 130 | - |
| Eric Sloane Museum | Kent, CT | 25 | 60 | - |
| Gloria’s Kitchen | Dayville, CT | 25 | 89 | - |
| Stateline Camp Resort-Well #1 | East Killingly, CT | 25 | 56 | - |
| Zips Diner Inc | Dayville, CT | 25 | 43 | - |
| Four Gs Pizzeria | Dayville, CT | 25 | 4 | - |
| 610 Wauregan Road | Danielson, CT | 25 | 96 | - |
| Black Pond Brews | Dayville, CT | 25 | 0 | - |
| Chatfield Hollow S.p./Main Well | Portland, CT | 25 | 15 | - |
| Chatfield Hollow S.p./Shop Well | Portland, CT | 25 | 18 | - |
| Deer Lake Outdoor Center - Well 1 | Killingworth, CT | 25 | 34 | - |
| Killingworth Country Market | Killingworth, CT | 25 | 15 | - |
| Killingworth Library | Killingworth, CT | 25 | 20 | - |
| 206 Route 80 | Durham, CT | 25 | 8 | - |
| Killingworth Town Hall | Killingworth, CT | 25 | 26 | - |
| St. Lawrence Church (Rec Hall) Well 1 | Killingworth, CT | 25 | 3 | - |
| 260 Route 80 - Killingworth | Killingworth, CT | 25 | 116 | - |
| Sheldon Field | Killingworth, CT | 25 | 16 | - |
| 183 Route 81 LLC | Westbrook, CT | 25 | 10 | - |
| 177 Route 81 | West Haven, CT | 25 | 9 | - |
| Deer Lake Outdoor Center - Well 3 | Killingworth, CT | 25 | 4 | - |
| Running Brook Farms | Killingworth, CT | 25 | 0 | - |
| Girl Scouts of CT - Camp Laurel - Well 2 | North Haven, CT | 25 | 18 | - |