Illinois
Macoupin County drinking water quality
35 active public water systems serve 45,236 people in Macoupin County. 9 are compliant, 26 had at least one EPA violation in the past three years, 2 are designated serious violators, and 2 carry a health flag.
Needs attention
Community water systems
30 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Carlinville Carlinville |
6,598 | 0 | 0 | |
|
Staunton Staunton |
5,756 | 4 | 0 | |
|
Brighton Brighton |
5,041 | 3 | 0 | |
|
Gillespie |
3,737 | 8 | 3 | |
|
Virden Virden |
3,274 | 1 | 1 | |
|
Mount Olive |
2,193 | 6 | 2 | |
|
Girard Girard |
1,885 | 1 | 0 | |
|
Central Macoupin County Rwd |
1,883 | 3 | 0 | |
|
Bunker Hill Bunker Hill |
1,760 | 1 | 0 | |
|
Benld Benld |
1,612 | 2 | 1 | |
|
Nilwood Nilwood |
1,394 | 2 | 0 | |
|
Otter Lake Water Commission |
1,318 | 0 | 0 | |
|
Lake Williamson Christian Center |
1,250 | 4 | 0 | |
|
South Palmyra Water Commission |
838 | 3 | 0 | |
|
Kaho Public Water District |
785 | 2 | 0 | |
|
Scottville Rural Water Company, Inc. |
695 | 3 | 1 | |
|
Palmyra Palmyra |
605 | 2 | 0 | |
|
Sawyerville Sawyerville |
578 | 4 | 1 | |
|
Shipman Shipman |
541 | 2 | 0 | |
|
Dorchester Dorchester |
540 | 2 | 0 | |
|
Wilsonville Wilsonville |
536 | 3 | 1 | |
|
White City White City |
485 | 0 | 0 | |
|
Medora Medora |
484 | 0 | 0 | |
|
Mount Clare Mount Clare |
311 | 1 | 0 | |
|
Royal Lakes Royal Lakes |
235 | 1 | 0 | |
|
Chesterfield |
184 | 1 | 0 | |
|
Modesto Modesto |
182 | 3 | 0 | |
|
Hettick Hettick |
174 | 6 | 3 | |
|
Eagarville Eagerville |
127 | 8 | 0 | |
|
Palmyra-Modesto Water Commission |
110 | 3 | 0 |
Non-community systems (5: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
J's Snack Shack |
25 | 0 | 0 | |
|
Magic Wand Car Wash Benld |
25 | 0 | 0 | |
|
Polar Ice and Water Gillespie |
25 | 0 | 0 | |
|
Twice the Ice Carlinville |
25 | 0 | 0 | |
|
Walmart Supercenter 0334 Carlinville |
25 | 0 | 0 |
Inactive systems (90, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.