Water quality for ZIP code 03470
ZIP 03470 covers Winchester in Cheshire County, New Hampshire, one of 25 ZIP codes in the county. 168 active public water systems serve the county; 49 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 Cheshire County
33 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Green Valley Mobile Home Park Winchester |
127 | 3 | 3.3 mi | |
| South Parrish Winchester |
140 | 0 | 5.5 mi | |
| Pine Grove Mobile Home Park Swanzey |
305 | 0 | 5.7 mi | |
| Ashuelot River Apts Swanzey |
100 | 0 | 6.7 mi | |
| N Swanzey Water and Fire Prct Swanzey |
1,700 | 0 | 6.7 mi | |
| West Swanzey Water Swanzey |
430 | 0 | 6.9 mi | |
| Eastfield Crossing Swanzey |
113 | 1 | 7.1 mi | |
| View Point Coop Swanzey |
248 | 0 | 7.5 mi | |
| Forest View Estates Swanzey |
180 | 0 | 7.8 mi | |
| Hinsdale Water Dept/downtown Hinsdale |
1,600 | 0 | 8.0 mi | |
| North Hinsdale Water Dept Hinsdale |
1,800 | 0 | 8.5 mi | |
| Troy Water Works Troy |
1,200 | 0 | 9.8 mi | |
| Fitzwilliam Village/prigge Fitzwilliam |
43 | 1 | 10.6 mi | |
| Fitzwilliam Village/laughner Fitzwilliam |
65 | 1 | 10.6 mi | |
| Fitzwilliam Village/massin Fitzwilliam |
53 | 0 | 10.8 mi | |
| 20 Jaffrey RD Fitzwilliam |
32 | 1 | 11.0 mi | |
| Marlborough Water Works Marlborough |
750 | 0 | 11.8 mi | |
| Keene Water Dept Keene |
30,000 | 0 | 12.0 mi | |
| Marlborough Estates Marlborough |
100 | 1 | 12.6 mi | |
| Cheshire County Complex Westmoreland |
380 | 0 | 14.9 mi | |
| Hampshire Court Water Rindge |
50 | 0 | 15.2 mi | |
| Residential Camp Monadnock Jaffrey |
28 | 2 | 17.0 mi | |
| Jaffrey Water Works Jaffrey |
3,800 | 0 | 17.0 mi | |
| Monadnock Tenants Rindge |
200 | 1 | 17.1 mi | |
| Surry Village Water Surry |
50 | 1 | 17.1 mi |
Non-community systems in Cheshire County (134: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Cheshire County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.