Water quality in Fredonia, Wisconsin
Fredonia is in Ozaukee County. 250 active public water systems serve the county; 62 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Ozaukee County
47 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Linden Lane Apts 117 Thiensville |
90 | 0 | 7.1 mi | |
| Belgium Waterworks Belgium |
2,493 | 2 | 7.6 mi | |
| Saukville Waterworks Saukville |
4,268 | 0 | 8.0 mi | |
| Port Washington Waterworks Port Washington |
12,853 | 1 | 9.2 mi | |
| PW Lake View Estates LLC Port Washington |
30 | 1 | 9.4 mi | |
| Osprey Mobile Home Park Grafton |
150 | 2 | 12.2 mi | |
| Stonecroft Condominium Assn Grafton |
50 | 2 | 12.2 mi | |
| Grafton Waterworks Grafton |
12,269 | 0 | 12.2 mi | |
| Cedarburg L & W Commission Cedarburg |
12,500 | 0 | 13.2 mi | |
| Concordia University Mequon |
1,500 | 2 | 16.3 mi | |
| Mequon Trail Townhomes Mequon |
615 | 2 | 16.3 mi | |
| Highland Colony Estates Condo Mequon |
88 | 0 | 16.8 mi | |
| Mequon Colony Estates Mequon |
75 | 2 | 17.2 mi | |
| Waters Edge Condominium Association Thiensville |
50 | 1 | 17.4 mi | |
| Alberta Subdivision Thiensville |
75 | 1 | 17.4 mi | |
| Heidel RD Apts 139 Thiensville |
40 | 3 | 17.4 mi | |
| Laurel Lakes 608 Thiensville |
80 | 2 | 17.4 mi | |
| Heidel RD Apts 152 Thiensville |
40 | 2 | 17.5 mi | |
| Laurel Lakes 508 Thiensville |
50 | 2 | 17.5 mi | |
| Century Estates 1 Thiensville |
130 | 0 | 17.6 mi | |
| Grand Ave Apartments Thiensville |
80 | 0 | 17.6 mi | |
| Linden Lane Apts 141 Thiensville |
75 | 2 | 17.7 mi | |
| River Garden Apts Thiensville |
25 | 4 | 17.7 mi | |
| Woodridge Estates Mequon |
100 | 3 | 17.8 mi | |
| Village Glen Apts Thiensville |
30 | 0 | 17.8 mi |
Non-community systems in Ozaukee County (202: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Ozaukee County, nearest to Fredonia 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 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 Wisconsin 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.