Water quality for ZIP code 62236
ZIP 62236 covers Columbia and Dupo in Monroe County, Illinois, one of 8 ZIP codes in the county. 17 active public water systems serve the county; 9 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 Monroe County
5 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Waterloo Waterloo |
10,190 | 7 | 6.4 mi | |
| Valmeyer Valmeyer |
1,233 | 0 | 8.9 mi | |
| Fountain Water District Valmeyer |
4,350 | 3 | 10.7 mi | |
| Hecker Hecker |
429 | 5 | 13.5 mi | |
| Maeystown Maeystown |
340 | 1 | 14.5 mi |
Non-community systems in Monroe County (11: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sugar Spring Ranch Banquet |
25 | 1 | 0 | |
|
Career Center of Southern Illinois |
50 | 9 | 2 | |
|
Waterloo Sportsman Club D Rahn |
40 | 0 | 0 | |
|
Walmart (138339) |
25 | 0 | 0 | |
|
Hank and Lillys Fountain Inn LLC |
50 | 0 | 0 | |
|
Ice House Waterloo |
40 | 0 | 0 | |
|
Freedom Lake |
25 | 1 | 0 | |
|
M & B Ice Columbia |
25 | 0 | 0 | |
|
Midwest Petroleum Co. PH 66 |
25 | 3 | 1 | |
|
Schnucks #242 |
25 | 0 | 0 | |
|
Schnucks 244 Columbia |
25 | 0 | 0 |
About this data
Water systems are matched to Monroe County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.