Water quality in Holderness, New Hampshire
Holderness 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
Other community water systems in Grafton County
73 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ropewalk Services Ashland |
290 | 0 | 3.5 mi | |
| Highland Colony Holderness |
88 | 0 | 3.6 mi | |
| Ashland Water Dept Ashland |
1,525 | 1 | 3.6 mi | |
| Whip O Will Plymouth |
165 | 0 | 4.0 mi | |
| Town Line Village Holderness |
193 | 0 | 4.3 mi | |
| Plymouth Vlg Water and Sewer Plymouth |
6,700 | 0 | 5.4 mi | |
| Red Sleigh Condos Campton |
44 | 2 | 5.7 mi | |
| Beebe River Campton |
63 | 0 | 6.3 mi | |
| Tripplewood Resort Condos Campton |
60 | 0 | 7.0 mi | |
| Two Rivers Mhcc Campton |
234 | 0 | 7.4 mi | |
| Coachman Condos Campton |
50 | 0 | 7.9 mi | |
| Valley View Condos Campton |
25 | 2 | 8.0 mi | |
| Chesleys MHP Campton |
60 | 0 | 8.0 mi | |
| Waterville Estate Vlg Dist/w Campton |
1,250 | 2 | 8.1 mi | |
| Tenney Brook II Plymouth |
228 | 0 | 8.4 mi | |
| Tenney Brook Condos I Plymouth |
90 | 0 | 8.4 mi | |
| Campton Village Pct Campton |
600 | 1 | 8.6 mi | |
| Owls Nest Golf Club and Condos Thornton |
272 | 0 | 9.0 mi | |
| Waterville Acres Condos Thornton |
50 | 2 | 9.3 mi | |
| Hillside Inn Condos Hebron |
65 | 0 | 9.4 mi | |
| Newfound Acres MHP Bridgewater |
26 | 0 | 9.4 mi | |
| Stone Gate Acres Hebron |
63 | 0 | 9.4 mi | |
| Whip O Will Condos Bridgewater |
45 | 0 | 9.5 mi | |
| Mountain River Condos East Thornton |
200 | 0 | 10.2 mi | |
| Mountain River Condos Thornton |
60 | 2 | 10.2 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 Holderness 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.