Water quality in Unionville, Pennsylvania
Unionville is in Chester County. 269 active public water systems serve the county; 148 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 Chester County
66 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Stone Barn Rentals |
120 | 5 | 3.0 mi | |
| Longwood Gardens |
440 | 5 | 3.6 mi | |
| Kennett Square Mun Water Works |
6,328 | 9 | 4.0 mi | |
| Appleville Mobile Home Park |
461 | 2 | 4.4 mi | |
| Aqua PA Spring Run |
8,151 | 1 | 4.8 mi | |
| Twin Pines Health Care Center |
120 | 4 | 5.4 mi | |
| Avonwheel Estate MHP |
300 | 0 | 5.7 mi | |
| Borough of Avondale |
1,108 | 3 | 5.9 mi | |
| Lake RD MHP Menu Mate Mushroom |
65 | 4 | 6.5 mi | |
| London Grove Twp Mun Auth |
4,770 | 1 | 6.5 mi | |
| Doe Run Mobile Home Park |
29 | 7 | 6.5 mi | |
| Caln Mobile Home Park |
30 | 0 | 6.8 mi | |
| West Grove Borough |
2,873 | 4 | 7.6 mi | |
| Downingtown Water Authority |
9,900 | 3 | 7.6 mi | |
| Coatesville Veterans Adm Hosp |
2,000 | 3 | 7.7 mi | |
| Londonderry Court MHP |
160 | 5 | 8.4 mi | |
| Maplewood Mobile Home Park |
70 | 7 | 8.6 mi | |
| Taylors Mobile Home Park |
50 | 0 | 8.6 mi | |
| PA American Coatesville |
36,960 | 2 | 8.9 mi | |
| Imperial Mobile Home Park |
151 | 2 | 9.2 mi | |
| Artesian Water PA INC |
95 | 3 | 9.3 mi | |
| Highland Court |
54 | 2 | 9.3 mi | |
| Aqua PA Friendship |
8,800 | 0 | 9.6 mi | |
| MT Idy Mobile Home Park |
80 | 2 | 9.7 mi | |
| Woodbrooke Water Authority |
87 | 2 | 9.7 mi |
Non-community systems in Chester County (202: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Chester County, nearest to Unionville 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.
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 Pennsylvania 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.