Water quality in Windsor, Illinois
Windsor is in Mercer County. 27 active public water systems serve the county; 15 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Mercer County
13 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| New Windsor Windsor |
740 | 4 | 77.8 mi | |
| Swedona Water Association |
109 | 1 | 82.1 mi | |
| Viola Viola |
869 | 2 | 82.8 mi | |
| Fyre Lake Water Company |
760 | 3 | 85.1 mi | |
| Sherrard Sherrard |
785 | 1 | 86.2 mi | |
| Seaton Seaton |
214 | 4 | 86.2 mi | |
| Unity Water Corporation |
93 | 1 | 86.4 mi | |
| Matherville Mathersville |
651 | 0 | 87.4 mi | |
| M C L W System, Inc. |
98 | 0 | 87.9 mi | |
| Aledo Aledo |
3,470 | 0 | 88.4 mi | |
| Keithsburg Keithsburg |
747 | 2 | 91.6 mi | |
| Joy Joy |
377 | 4 | 93.4 mi | |
| New Boston New Boston |
613 | 1 | 97.6 mi |
Non-community systems in Mercer County (13: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Camp Summit |
100 | 1 | 0 | |
|
Lgc Shady Lakes RV LLC |
25 | 2 | 0 | |
|
Norwood United Presbyterian Church |
80 | 0 | 0 | |
|
Midwest Fiber Products INC |
25 | 0 | 0 | |
|
Cable Community Church |
70 | 0 | 0 | |
|
Boden Comm Water Assn |
50 | 1 | 0 | |
|
7 Eleven |
504 | 0 | 0 | |
|
Gold Star FS |
40 | 0 | 0 | |
|
Trinity Presbyterian Church |
150 | 0 | 0 | |
|
First Christian Church (131912) |
100 | 0 | 0 | |
|
Haven Hills Campground and Resort |
80 | 1 | 0 | |
|
Mercer Market Vending Machine |
60 | 0 | 0 | |
|
Twice the Ice Aledo |
25 | 0 | 0 |
About this data
Water systems are matched to Mercer County, nearest to Windsor 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 Illinois 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.