Water quality for ZIP code 06357
ZIP 06357 covers Niantic in New London County, Connecticut, one of 33 ZIP codes in the 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 |
|---|---|---|---|---|
| Ctwc Shoreline Region-Point O Woods Old Lyme |
1,068 | 0 | 2.9 mi | |
| Rye Field Manor Elderly Housing Old Lyme |
78 | 0 | 3.6 mi | |
| Chadwick Homeowners Assn., Inc. Old Lyme |
292 | 1 | 3.7 mi | |
| Lymewood Elderly Housing Old Lyme |
50 | 2 | 3.9 mi | |
| Waterford Wpca Montville, New London, Waterford |
16,578 | 2 | 4.4 mi | |
| Ctwc Shoreline Region-Sound View Old Lyme |
3,397 | 0 | 4.6 mi | |
| Laurel Heights Association, Inc. Old Lyme |
45 | 2 | 4.9 mi | |
| Mile Creek Apartments Old Lyme |
60 | 3 | 5.4 mi | |
| Lyme Academy Apartments,llc Old Lyme |
48 | 4 | 5.7 mi | |
| New London Dept. of Public Utilities New London, Waterford |
27,620 | 1 | 5.9 mi | |
| Boxwood Condominium Association Old Lyme |
28 | 5 | 6.0 mi | |
| Lyme Regis, Inc. Old Lyme |
32 | 0 | 6.3 mi | |
| Waterford Country School, Inc. Waterford |
180 | 0 | 6.8 mi | |
| Deer Run Supply Montville |
84 | 2 | 6.9 mi | |
| Scwa, Oakdale Heights Division Montville |
876 | 2 | 8.5 mi | |
| Scwa, Hillcrest Division (hlc) Montville |
450 | 0 | 8.7 mi | |
| Oakridge Village Montville |
33 | 5 | 8.7 mi | |
| Groton Utilities Groton, Ledyard |
30,200 | 1 | 9.0 mi | |
| Independence Village Elderly Housing Montville |
55 | 1 | 9.1 mi | |
| Scwa, Robin Hill Division (rbn) Montville |
388 | 0 | 9.3 mi | |
| Scwa, Chesterfield Division Montville |
524 | 0 | 9.5 mi | |
| Crystal Lake Condominiums Salem |
184 | 0 | 9.5 mi | |
| Scwa, Seven Oaks (oak) Montville |
26 | 0 | 10.1 mi | |
| Marina Cove Montville |
70 | 1 | 10.1 mi | |
| Scwa, Montville Division (mtv) Montville |
2,570 | 0 | 10.1 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, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.