Water quality in Osco, Illinois
Osco is in Henry County. 80 active public water systems serve the county; 40 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Henry County
40 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Andover Andover |
565 | 1 | 3.6 mi | |
| Orion Orion |
1,754 | 4 | 4.8 mi | |
| Lynn Water Association, INC |
100 | 2 | 5.2 mi | |
| Cambridge Cambridge |
2,086 | 0 | 5.7 mi | |
| Lake Lynwood Water System |
75 | 2 | 6.0 mi | |
| Colona West Green Rock |
2,640 | 0 | 7.8 mi | |
| Ophiem PWS |
110 | 4 | 8.3 mi | |
| Sunny Hill Estates Subdivision |
375 | 1 | 8.4 mi | |
| Willow Haven MHP Colona |
270 | 0 | 9.1 mi | |
| Nancys MHP Colona |
77 | 0 | 9.1 mi | |
| Buysse Subdivision |
380 | 2 | 9.3 mi | |
| Colona East Colona |
2,501 | 0 | 9.4 mi | |
| Oak View Estates |
95 | 0 | 9.4 mi | |
| Timber Ridge Sbdv |
90 | 3 | 9.5 mi | |
| Oakwood West Subdivision |
38 | 1 | 9.8 mi | |
| Geneseo Geneseo |
6,539 | 0 | 9.8 mi | |
| Geneseo Hickory Hills HOA |
83 | 2 | 9.9 mi | |
| Rustic Acres Water Association |
260 | 4 | 10.6 mi | |
| Wolf Ridge Well Corporation |
95 | 2 | 10.8 mi | |
| Hazelwood Heights Subdivision |
235 | 3 | 11.1 mi | |
| Hazelwood West Subdivision |
70 | 1 | 11.5 mi | |
| Hazelwood 4th Addition |
140 | 3 | 11.7 mi | |
| Woodhull Woodhull |
771 | 0 | 11.8 mi | |
| Geneseo Hills Subdivision |
500 | 1 | 11.8 mi | |
| Alpha Alpha |
626 | 0 | 12.2 mi |
Non-community systems in Henry County (39: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Henry County, nearest to Osco 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.