Water quality in Somersworth, New Hampshire
Somersworth is in Strafford County. 132 active public water systems serve the county; 45 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 Strafford County
47 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Rochester Consecutive Wtr Sys Rochester |
171 | 0 | 2.3 mi | |
| Profile Apartments Rochester |
90 | 4 | 2.4 mi | |
| Country Ridge Mobile Home Park Rochester |
35 | 2 | 2.7 mi | |
| Rollinsford Water Sewer Dist Rollinsford |
1,688 | 1 | 3.1 mi | |
| Dover Water Dept Dover |
29,000 | 0 | 4.4 mi | |
| Green Hills MHP Barrington |
50 | 0 | 5.4 mi | |
| Rochester Water Dept Rochester |
25,000 | 1 | 5.7 mi | |
| Madbury Woods Apartments Madbury |
30 | 4 | 6.6 mi | |
| Halcyon Hill Barrington |
58 | 0 | 6.7 mi | |
| Drew Pond Barrington |
100 | 0 | 6.9 mi | |
| Inn at Secretariat Estates Rochester |
54 | 0 | 7.3 mi | |
| Johnson Creek Durham |
63 | 0 | 7.8 mi | |
| Unh/durham Water Sys Durham |
16,000 | 0 | 8.2 mi | |
| Lee Oak Cooperative Barrington |
163 | 0 | 8.3 mi | |
| Crossings at Village Ctr Barrington |
60 | 0 | 8.3 mi | |
| Barrington Hills Apts/lower Barrington |
38 | 0 | 8.4 mi | |
| Barrington Hills Apts/upper Barrington |
43 | 0 | 8.4 mi | |
| Heath Brook Estates Rochester |
36 | 1 | 8.6 mi | |
| Meadowbrook Village Rochester |
40 | 1 | 8.7 mi | |
| Cedar Wood Estates Lee |
30 | 0 | 8.9 mi | |
| Oyster River Condos Lee |
53 | 1 | 9.1 mi | |
| Swains Lake Village Water Barrington |
227 | 1 | 9.1 mi | |
| Acorn Terrace Rochester |
215 | 0 | 9.2 mi | |
| Grandview Estates Rochester |
30 | 0 | 9.2 mi | |
| Brookdale Spruce Wood Durham |
225 | 0 | 9.5 mi |
Non-community systems in Strafford County (84: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Strafford County, nearest to Somersworth 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.