Water quality in Grantham, New Hampshire
Grantham is in Sullivan County. 65 active public water systems serve the county; 18 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Sullivan County
14 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Village Dist of Eastman Grantham |
3,400 | 1 | 1.6 mi | |
| Georges Mills Water Works Sunapee |
500 | 0 | 6.2 mi | |
| Meriden Village Water Dist Plainfield |
750 | 0 | 6.6 mi | |
| Cary and Allen ST Dev Newport |
43 | 1 | 8.5 mi | |
| Sunapee Water Works Sunapee |
1,680 | 0 | 8.5 mi | |
| Meadow Brook at Sunapee Sunapee |
56 | 0 | 9.9 mi | |
| Newport Water Works Newport |
5,000 | 0 | 10.2 mi | |
| Plainfield Water Dept Plainfield |
284 | 0 | 11.2 mi | |
| Claremont Water Dept Claremont |
9,000 | 2 | 14.0 mi | |
| Sullivan County Complex Unity |
625 | 1 | 15.6 mi | |
| Meadowview Apts Charlestown |
58 | 0 | 17.2 mi | |
| Windy Acres Charlestown |
180 | 0 | 17.9 mi | |
| Charlestown Water Works Charlestown |
2,850 | 1 | 21.4 mi | |
| Connecticut River MHP Charlestown |
50 | 0 | 26.4 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, nearest to Grantham 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 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.