New Hampshire
Sullivan County drinking water quality
65 active public water systems serve 33,176 people in Sullivan County. 47 are compliant, 18 had at least one EPA violation in the past three years, 0 are designated serious violators, and 2 carry a health flag.
Needs attention
Community water systems
15 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Claremont Water Dept Claremont |
9,000 | 2 | 0 | |
|
Newport Water Works Newport |
5,000 | 0 | 0 | |
|
Village Dist of Eastman Grantham |
3,400 | 1 | 0 | |
|
Charlestown Water Works Charlestown |
2,850 | 1 | 0 | |
|
Sunapee Water Works Sunapee |
1,680 | 0 | 0 | |
|
Meriden Village Water Dist Plainfield |
750 | 0 | 0 | |
|
Sullivan County Complex Unity |
625 | 1 | 1 | |
|
Georges Mills Water Works Sunapee |
500 | 0 | 0 | |
|
Plainfield Water Dept Plainfield |
284 | 0 | 0 | |
|
Windy Acres Charlestown |
180 | 0 | 0 | |
|
Meadowview Apts Charlestown |
58 | 0 | 0 | |
|
Meadow Brook at Sunapee Sunapee |
56 | 0 | 0 | |
|
Connecticut River MHP Charlestown |
50 | 0 | 0 | |
|
Gray Ledges Grantham |
50 | 0 | 0 | |
|
Cary and Allen ST Dev Newport |
43 | 1 | 0 |
Non-community systems (50: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
Inactive systems (37, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.