Water quality for ZIP code 03603
ZIP 03603 covers Charlestown in Sullivan County, New Hampshire, one of 15 ZIP codes in the county. 65 active public water systems serve the county; 18 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 Sullivan County
14 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Windy Acres Charlestown |
180 | 0 | 4.6 mi | |
| Connecticut River MHP Charlestown |
50 | 0 | 4.7 mi | |
| Meadowview Apts Charlestown |
58 | 0 | 5.5 mi | |
| Sullivan County Complex Unity |
625 | 1 | 6.2 mi | |
| Claremont Water Dept Claremont |
9,000 | 2 | 8.8 mi | |
| Newport Water Works Newport |
5,000 | 0 | 13.2 mi | |
| Cary and Allen ST Dev Newport |
43 | 1 | 14.1 mi | |
| Meadow Brook at Sunapee Sunapee |
56 | 0 | 17.5 mi | |
| Sunapee Water Works Sunapee |
1,680 | 0 | 18.1 mi | |
| Plainfield Water Dept Plainfield |
284 | 0 | 19.8 mi | |
| Gray Ledges Grantham |
50 | 0 | 20.4 mi | |
| Georges Mills Water Works Sunapee |
500 | 0 | 20.4 mi | |
| Meriden Village Water Dist Plainfield |
750 | 0 | 21.6 mi | |
| Village Dist of Eastman Grantham |
3,400 | 1 | 23.3 mi |
Non-community systems in Sullivan County (50: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Sullivan 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 New Hampshire 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.