Water quality in Hopkinton, New Hampshire
Hopkinton is in Merrimack County. 246 active public water systems serve the county; 80 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Merrimack County
62 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Hopkinton Village Pct Hopkinton |
215 | 1 | 2.1 mi | |
| Contoocook Village Pct Hopkinton |
1,600 | 3 | 2.2 mi | |
| The Meadows Hopkinton |
200 | 0 | 2.2 mi | |
| Pleasant Pond Coop and Cmpgrnd Warner |
218 | 0 | 3.3 mi | |
| Deer Meadows Hopkinton |
150 | 2 | 3.8 mi | |
| Liberty Ridge MHP Henniker |
91 | 0 | 4.5 mi | |
| Pillsbury Lake/franklin Pierce Webster |
75 | 2 | 5.1 mi | |
| Pillsbury Lake/peninsula Webster |
90 | 0 | 5.6 mi | |
| Evergreen Drive Water Bow |
80 | 0 | 5.8 mi | |
| Cogswell Springs Water Works Henniker |
3,000 | 0 | 6.3 mi | |
| Bella Brook Water Bow |
50 | 0 | 6.3 mi | |
| Warner Village Water Dist Warner |
660 | 0 | 7.6 mi | |
| Penacook Boscawen Water Pct Boscawen |
3,800 | 0 | 8.4 mi | |
| Concord Water Dept Concord |
44,215 | 0 | 8.4 mi | |
| Abenaki Water/white Rock Water Bow |
238 | 0 | 8.6 mi | |
| Cottages at Windchimes Bow |
75 | 0 | 9.0 mi | |
| White Rock Senior Living Bow |
120 | 0 | 9.2 mi | |
| Stone Sled Farm Bow |
113 | 0 | 10.8 mi | |
| Canterbury Spruces Housing Canterbury |
25 | 0 | 11.5 mi | |
| Meeting House Water Pembroke |
35 | 1 | 11.6 mi | |
| Borough RD Apartments Pembroke |
30 | 0 | 12.0 mi | |
| Bow Municipal Water System Bow |
150 | 0 | 12.1 mi | |
| Freedom Hill/pine Ridge Est Loudon |
370 | 3 | 12.6 mi | |
| Villages at Loudon Loudon |
250 | 0 | 12.6 mi | |
| Voa/nne Senior Housing Loudon |
50 | 0 | 13.0 mi |
Non-community systems in Merrimack County (183: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Merrimack County, nearest to Hopkinton 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.