Illinois
Macon County drinking water quality
26 active public water systems serve 104,851 people in Macon County. 11 are compliant, 15 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 2 carry a health flag.
Needs attention
Community water systems
15 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Decatur Decatur |
76,122 | 1 | 0 | |
|
Long Creek Township PWS Long Creek |
7,850 | 0 | 0 | |
|
Mount Zion Mount Zion |
5,833 | 1 | 0 | |
|
Forsyth Forsyth |
3,490 | 0 | 0 | |
|
Maroa Maroa |
1,700 | 0 | 0 | |
|
Harristown Harristown |
1,320 | 1 | 1 | |
|
Blue Mound Blue Mound |
1,300 | 5 | 3 | |
|
Warrensburg Warrensburg |
1,230 | 3 | 2 | |
|
Macon Macon |
1,205 | 1 | 0 | |
|
Argenta Argenta |
900 | 4 | 1 | |
|
Oreana Oreana |
892 | 3 | 1 | |
|
EJ Water-Niantic Niantic |
648 | 2 | 0 | |
|
Decatur Mhp, LLC Decatur |
500 | 3 | 1 | |
|
Decatur Correctional Center Decatur |
341 | 0 | 0 | |
|
Boody Community Water Company |
232 | 0 | 0 |
Non-community systems (11: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Pride of the Prairie Rest Area |
800 | 4 | 1 | |
|
Rock Springs Visitor Center |
125 | 2 | 1 | |
|
Culligan Water Conditioning |
100 | 0 | 0 | |
|
Ads Valley View Landfill, INC |
60 | 3 | 0 | |
|
The Micar Company |
53 | 3 | 1 | |
|
Culligan at Wal-Mart-Maryland |
25 | 0 | 0 | |
|
Culligan at Wal-Mart-Prospect |
25 | 0 | 0 | |
|
Glacier Water-Kroger South Shores |
25 | 0 | 0 | |
|
Kroger J-922 #2 |
25 | 0 | 0 | |
|
Twice the Ice Decatur |
25 | 1 | 1 | |
|
Water Island Kroger Airport PZ |
25 | 0 | 0 |
Inactive systems (227, 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.