Illinois
Sangamon County drinking water quality
68 active public water systems serve 183,223 people in Sangamon County. 42 are compliant, 26 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 0 carry a health flag.
Needs attention
Community water systems
42 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Springfield Springfield |
117,444 | 2 | 0 | |
|
Chatham Chatham |
16,423 | 0 | 0 | |
|
Curran-Gardner Township Pwd Springfield |
6,651 | 0 | 0 | |
|
Williamsville Williamsville |
6,198 | 1 | 0 | |
|
Auburn Auburn |
4,574 | 3 | 0 | |
|
Riverton Riverton |
4,279 | 1 | 0 | |
|
Rochester Rochester |
3,856 | 1 | 0 | |
|
Pawnee Pawnee |
2,700 | 0 | 0 | |
|
Dawson Dawson |
2,375 | 5 | 1 | |
|
Jerome Jerome |
1,600 | 3 | 0 | |
|
Pleasant Plains |
1,508 | 2 | 0 | |
|
Grandview Grandview |
1,405 | 3 | 1 | |
|
Mechanicsburg-Buffalo Water Commission |
1,170 | 7 | 2 | |
|
New Berlin |
1,150 | 6 | 2 | |
|
Divernon Divernon |
1,100 | 0 | 0 | |
|
Illiopolis Illiopolis |
1,037 | 3 | 0 | |
|
EJ Water-Sangchris New Berlin |
1,025 | 4 | 1 | |
|
Grand Valley Village MHP Springfield |
912 | 4 | 1 | |
|
Round Prairie Water Coop Springfield |
813 | 1 | 0 | |
|
Loami Loami |
812 | 0 | 0 | |
|
Sugar Crk Pwd |
754 | 0 | 0 | |
|
Thayer Thayer |
721 | 1 | 0 | |
|
Woodland Acres MHP Springfield |
464 | 0 | 0 | |
|
Oakwood Estates Springfield |
420 | 2 | 0 | |
|
Cottonwood Cove MHP Springfield |
358 | 0 | 0 | |
|
Forrest Park MHP Springfield |
352 | 0 | 0 | |
|
Pheasant Run MHP Springfield |
350 | 2 | 0 | |
|
Bissell Village MHC Springfield |
220 | 0 | 0 | |
|
Northbrook MHC Springfield |
220 | 0 | 0 | |
|
Deerwood Estates Springfield |
176 | 0 | 0 | |
|
Milton Manor MHP Springfield |
154 | 0 | 0 | |
|
Westwood Place Springfield |
152 | 0 | 0 | |
|
South Sangamon Water Commission |
134 | 0 | 0 | |
|
Ridge Village MHP Springfield |
120 | 1 | 1 | |
|
Gaslite Court MHC Springfield |
114 | 0 | 0 | |
|
Scottsdale MHC Springfield |
114 | 0 | 0 | |
|
Edgewood Mobile Home Court (mhc) Springfield |
92 | 2 | 1 | |
|
Linden Manor MHP Springfield |
84 | 0 | 0 | |
|
Park Ridge MHC Springfield |
68 | 2 | 1 | |
|
Patch Place MHC Springfield |
47 | 0 | 0 | |
|
Westwood Springfield |
44 | 0 | 0 | |
|
United Regional Water Coop Illiopolis |
43 | 1 | 0 |
Non-community systems (26: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Church of the Nazarene (142588) |
200 | 0 | 0 | |
|
Sangchris State Park Office (10066) |
100 | 1 | 0 | |
|
The Gym of Springfield |
100 | 1 | 0 | |
|
Kents Iga Riverton |
40 | 0 | 0 | |
|
Boarman Aqua Pure (147926) |
25 | 0 | 0 | |
|
Car Wash City Chatham |
25 | 0 | 0 | |
|
Carwash City |
25 | 0 | 0 | |
|
County Market Carpenter Springfield |
25 | 0 | 0 | |
|
County Market Chatham |
25 | 0 | 0 | |
|
County Market Monroe Springfield |
25 | 0 | 0 | |
|
County Market Sherman |
25 | 0 | 0 | |
|
Everest Water & Ice Vending Rochester |
25 | 0 | 0 | |
|
Harvest Market Veterans Pkwy |
25 | 0 | 0 | |
|
Highland Pure Water & Ice |
25 | 0 | 0 | |
|
Hyvee Springfield |
25 | 0 | 0 | |
|
Lincoln Land Baptist Church |
25 | 1 | 0 | |
|
Meijer Springfield |
25 | 0 | 0 | |
|
Sangamon Ice Now, Inc. |
25 | 0 | 0 | |
|
Schnuck Sangamon Springfield |
25 | 0 | 0 | |
|
Schnucks Chatham RD Springfield |
25 | 0 | 0 | |
|
Springfield KOA Kampground INC |
25 | 0 | 0 | |
|
Twice the Ice Springfield |
25 | 0 | 0 | |
|
Walmart 6th Street Springfield |
25 | 0 | 0 | |
|
Walmart Dirksen Springfield |
25 | 0 | 0 | |
|
Walmart Freedom Springfield |
25 | 0 | 0 | |
|
Whiskey Ridge Saloon, LLC |
25 | 1 | 0 |
Inactive systems (225, 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.