Water quality in Hanover, New Hampshire
Hanover is in Grafton County. 269 active public water systems serve the county; 117 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 Grafton County
73 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Pond View Apartments Lyme |
23 | 1 | 4.9 mi | |
| Lebanon Water Dept Lebanon |
13,600 | 1 | 5.2 mi | |
| Mascoma Meadows Lebanon |
125 | 2 | 5.7 mi | |
| Curriers MHP Lebanon |
24 | 1 | 5.9 mi | |
| Olympic Mobile Home Vill/lower Lebanon |
32 | 1 | 6.0 mi | |
| Olympic Mobile Home Vill/upper Lebanon |
48 | 1 | 6.1 mi | |
| Lakeside Cooperative Enfield |
136 | 2 | 6.1 mi | |
| Enfield Water Dept Enfield |
1,345 | 2 | 7.3 mi | |
| Lyme Water Lyme |
283 | 0 | 7.4 mi | |
| Lower Shaker Village Enfield |
263 | 1 | 8.3 mi | |
| Mascoma Valley Coop Canaan |
73 | 1 | 8.8 mi | |
| Wilsons MHP Enfield |
30 | 0 | 9.2 mi | |
| Lakeview Condos Enfield |
328 | 1 | 9.6 mi | |
| Cardigan Mountain Sch Canaan |
300 | 2 | 10.4 mi | |
| Canaan Water Dept Canaan |
684 | 5 | 12.2 mi | |
| Country Village MHP Canaan |
66 | 1 | 12.7 mi | |
| Orford Village Dist Orford |
128 | 0 | 13.8 mi | |
| South Main Street Water Dist Warren |
200 | 1 | 22.3 mi | |
| Ledges at Newfound Lake Alexandria |
307 | 0 | 22.5 mi | |
| Stone Gate Acres Hebron |
63 | 0 | 23.2 mi | |
| Hillside Inn Condos Hebron |
65 | 0 | 23.6 mi | |
| Precinct of Haverhill Corner Haverhill |
540 | 0 | 23.6 mi | |
| Hawthorne Village Rumney |
55 | 2 | 23.7 mi | |
| Tenney Brook Condos I Plymouth |
90 | 0 | 23.9 mi | |
| Tenney Brook II Plymouth |
228 | 0 | 23.9 mi |
Non-community systems in Grafton County (195: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Grafton County, nearest to Hanover 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.