Water quality in Simpson, Illinois
Simpson is in Johnson County. 7 active public water systems serve the county; 6 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Johnson County
5 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Burnside Pwd |
2,998 | 1 | 7.7 mi | |
| Vienna Vienna |
1,618 | 0 | 8.0 mi | |
| Shawnee Correctional Center Vienna |
1,617 | 2 | 8.0 mi | |
| Goreville Goreville |
1,068 | 3 | 13.4 mi | |
| Belknap Belknap |
490 | 2 | 15.4 mi |
Non-community systems in Johnson County (1: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Twice the Ice Vienna |
25 | 2 | 1 |
About this data
Water systems are matched to Johnson County, nearest to Simpson 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 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.