Water quality in Alton, New Hampshire
Alton is in Belknap County. 256 active public water systems serve the county; 72 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 Belknap County
69 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Lakeside at Winnipesaukee Alton |
85 | 0 | 4.1 mi | |
| Eagles Rest MHP Alton |
138 | 0 | 4.3 mi | |
| Merrymeeting MHP Alton |
265 | 0 | 4.4 mi | |
| Lily Pond MHP Gilford |
26 | 1 | 7.1 mi | |
| Country Village Way Gilford |
100 | 0 | 7.2 mi | |
| Cherry Valley Condos Gilford |
90 | 0 | 7.5 mi | |
| Samoset at Winnipesaukee Gilford |
343 | 0 | 7.5 mi | |
| Locke Lake Barnstead |
2,308 | 0 | 7.6 mi | |
| Chalet Village Gilford |
35 | 0 | 7.7 mi | |
| Lake Shore Park Gilford |
150 | 1 | 8.0 mi | |
| Gunstock Acres Village Dist Gilford |
1,440 | 4 | 8.0 mi | |
| Brake Hill Acres Gilford |
98 | 0 | 8.5 mi | |
| Brookside Crossing Gilford |
138 | 1 | 8.7 mi | |
| Gunstock Glen Water Gilford |
138 | 0 | 8.7 mi | |
| Abenaki Water/gilford Village Gilford |
190 | 0 | 9.1 mi | |
| Winnstock Condos Gilford |
125 | 0 | 9.1 mi | |
| Liberty Highlands Water Gilford |
50 | 0 | 9.1 mi | |
| Gilford Forest Estates Gilford |
113 | 0 | 9.1 mi | |
| Broadview Condos Gilford |
128 | 0 | 9.3 mi | |
| Belknap Heights Water Gilford |
60 | 0 | 9.4 mi | |
| Hampshire Village Gilford |
40 | 0 | 9.7 mi | |
| Lrmhv Gilford |
233 | 0 | 9.8 mi | |
| Old Lake Shore Gilford |
128 | 0 | 9.9 mi | |
| Gilford Meadows Gilford |
75 | 0 | 10.0 mi | |
| Edge of Woods Gilford |
123 | 0 | 10.1 mi |
Non-community systems in Belknap County (186: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Belknap County, nearest to Alton 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.