Water quality in Allenstown, New Hampshire
Allenstown 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
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Merrimack County
62 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Catamount Hill Allenstown |
383 | 1 | 1.2 mi | |
| Bear View Crossing Allenstown |
800 | 0 | 1.7 mi | |
| Olde Towne Allenstown |
243 | 0 | 2.1 mi | |
| Kings Grant Epsom |
99 | 3 | 3.1 mi | |
| Sheltering Pines MHP Epsom |
125 | 2 | 4.1 mi | |
| Hooksett Village Water Pct Hooksett |
3,000 | 0 | 4.2 mi | |
| Wesco Utilities Hooksett |
210 | 0 | 4.2 mi | |
| Bow Municipal Water System Bow |
150 | 0 | 4.2 mi | |
| Kings Towne MHP Epsom |
350 | 0 | 4.3 mi | |
| Meeting House Water Pembroke |
35 | 1 | 4.7 mi | |
| Meadow Brook Epsom |
75 | 0 | 5.0 mi | |
| Central Hooksett Water Pct Hooksett |
4,650 | 0 | 5.6 mi | |
| Borough RD Apartments Pembroke |
30 | 0 | 5.7 mi | |
| Epsom Village Water District Epsom |
800 | 0 | 6.4 mi | |
| Colby Brook Estates Epsom |
68 | 0 | 6.4 mi | |
| Epsom Healthcare Ctr Epsom |
240 | 0 | 6.7 mi | |
| Stone Sled Farm Bow |
113 | 0 | 6.9 mi | |
| Smythe Woods Hooksett |
168 | 0 | 7.0 mi | |
| White Rock Senior Living Bow |
120 | 0 | 7.1 mi | |
| Cottages at Windchimes Bow |
75 | 0 | 7.2 mi | |
| Abenaki Water/white Rock Water Bow |
238 | 0 | 7.9 mi | |
| Robinsons Mhp/upper Chichester |
55 | 0 | 7.9 mi | |
| Concord Water Dept Concord |
44,215 | 0 | 9.3 mi | |
| Freedom Hill/pine Ridge Est Loudon |
370 | 3 | 9.4 mi | |
| Bella Brook Water Bow |
50 | 0 | 10.4 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 Allenstown 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.