Water quality in New London, Connecticut
New London is in New London County. 392 active public water systems serve the county; 204 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in New London County
87 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Waterford Wpca Montville, New London, Waterford |
16,578 | 2 | 1.0 mi | |
| Groton Utilities Groton, Ledyard |
30,200 | 1 | 4.1 mi | |
| Waterford Country School, Inc. Waterford |
180 | 0 | 4.4 mi | |
| East Lyme Water & Sewer Commission East Lyme |
15,245 | 1 | 5.0 mi | |
| Scwa, Tower-Ferry View Division Ledyard |
2,567 | 1 | 5.7 mi | |
| Scwa, Hillcrest Division (hlc) Montville |
450 | 0 | 5.9 mi | |
| Independence Village Elderly Housing Montville |
55 | 1 | 6.0 mi | |
| Neighbors of Rogers, LLC Groton |
57 | 4 | 6.1 mi | |
| Marina Cove Montville |
70 | 1 | 6.5 mi | |
| Scwa, Chriswood Division (cwd) Ledyard |
164 | 0 | 6.5 mi | |
| Groton Long Point Association Groton |
2,400 | 2 | 6.5 mi | |
| Kitemaug Orchard Association, Inc. Montville |
490 | 0 | 6.8 mi | |
| Ledyard Wpca, Gales Ferry System Groton, Ledyard |
2,369 | 1 | 6.8 mi | |
| Noank Fire District Groton |
1,947 | 2 | 6.8 mi | |
| Deer Run Supply Montville |
84 | 2 | 6.9 mi | |
| Ash Water Company, LLC Ledyard |
108 | 0 | 6.9 mi | |
| Montville Water Supply Montville, Waterford |
1,300 | 0 | 7.3 mi | |
| Mystic Village Apartments Groton |
66 | 2 | 7.4 mi | |
| Scwa, Chesterfield Division Montville |
524 | 0 | 7.5 mi | |
| Oakridge Village Montville |
33 | 5 | 7.5 mi | |
| Scwa, Barrett Division (bar) Ledyard |
300 | 0 | 7.5 mi | |
| Scwa, Oakdale Heights Division Montville |
876 | 2 | 7.7 mi | |
| Ctwc Shoreline Region-Point O Woods Old Lyme |
1,068 | 0 | 7.9 mi | |
| Mountview Apartments Montville |
105 | 3 | 8.0 mi | |
| Rye Field Manor Elderly Housing Old Lyme |
78 | 0 | 8.1 mi |
Non-community systems in New London County (304: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to New London County, nearest to New London first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision files or the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Connecticut records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.