Water quality in Westerville, Ohio
Westerville is in Franklin County. 99 active public water systems serve the county; 38 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 Franklin County
30 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Aqua Ohio Huber Ridge PWS |
5,393 | 0 | 2.3 mi | |
| BY Way Mobile Home Park |
150 | 0 | 6.0 mi | |
| Gahanna City PWS |
33,258 | 1 | 7.1 mi | |
| Aqua Ohio Worthington Hills PWS |
2,500 | 0 | 7.2 mi | |
| Leonard Park PWS |
266 | 2 | 7.4 mi | |
| Columbus Public Water System |
1,309,468 | 0 | 10.2 mi | |
| Jefferson Water and Sewer District PWS |
11,294 | 1 | 10.4 mi | |
| Bexley City PWS |
14,250 | 2 | 11.1 mi | |
| Reynoldsburg City PWS |
37,847 | 1 | 13.0 mi | |
| Ponderosa Estates MHP |
216 | 0 | 13.5 mi | |
| Country Side Mobile Home |
180 | 0 | 13.8 mi | |
| Sanitary District #4 |
8,575 | 2 | 14.1 mi | |
| Hayden Heights MHP |
188 | 3 | 14.8 mi | |
| Aqua Ohio Blacklick |
7,100 | 0 | 15.2 mi | |
| Aqua Ohio Timberbrook PW |
865 | 0 | 16.5 mi | |
| Obetz Satellite 2 PWS |
1,267 | 2 | 17.6 mi | |
| Obetz Satellite 1 PWS |
151 | 2 | 17.7 mi | |
| Enchanted Acres MHP |
750 | 1 | 17.8 mi | |
| Obetz Village PWS |
3,167 | 3 | 17.8 mi | |
| Obetz Satellite 6 PWS |
1,317 | 2 | 18.2 mi | |
| Monterey Care Center |
130 | 0 | 18.6 mi | |
| Groveport PWS |
3,229 | 0 | 18.6 mi | |
| Canal Winchester City PWS |
9,286 | 1 | 20.2 mi | |
| Aqua Ohio Lake Darby |
3,562 | 0 | 20.2 mi | |
| Lockbourne Village PWS |
275 | 2 | 22.0 mi |
Non-community systems in Franklin County (68: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Franklin County, nearest to Westerville 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 Ohio 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.