Water quality in Williamsfield, Illinois
Williamsfield is in Knox County. 45 active public water systems serve the county; 25 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 Knox County
16 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Aqua Illinois-Oak Run |
1,885 | 0 | 6.6 mi | |
| Victoria Victoria |
268 | 2 | 8.1 mi | |
| Yates City Yates City |
828 | 1 | 10.4 mi | |
| Maquon Maquon |
218 | 3 | 11.7 mi | |
| Knoxville Knoxville |
3,120 | 1 | 14.2 mi | |
| Oneida Oneida |
644 | 1 | 14.7 mi | |
| Wataga Wataga |
965 | 5 | 15.0 mi | |
| Altona Altona |
483 | 1 | 15.0 mi | |
| East Galesburg East Galesburg |
860 | 2 | 15.3 mi | |
| Henderson Henderson |
375 | 5 | 18.8 mi | |
| Galesburg Galesburg |
31,620 | 0 | 19.0 mi | |
| Abingdon Abingdon |
3,275 | 1 | 21.8 mi | |
| Windwood Water System, Inc. |
185 | 1 | 22.1 mi | |
| Rio Rio |
265 | 0 | 23.5 mi | |
| ST Augustine St Augustine |
119 | 0 | 24.9 mi | |
| IL American-Cedar Water |
172 | 0 | — |
Non-community systems in Knox County (28: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Happy Hollow Lake Ass C/o H SM |
25 | 4 | 1 | |
|
Camp Akita/a Frame Well |
100 | 3 | 1 | |
|
Faith Bible Camp |
50 | 3 | 1 | |
|
Double Tree Hills |
25 | 3 | 2 | |
|
Stonefort Campground |
25 | 4 | 1 | |
|
Oak Run Camping Area |
100 | 3 | 0 | |
|
Gamber Cove |
100 | 2 | 1 | |
|
Galesburg East KOA |
25 | 0 | 0 | |
|
Woodland Hills Camping & Recreation |
25 | 4 | 2 | |
|
Lake Calhoun Association #5 |
25 | 0 | 0 | |
|
Community Bible Church |
60 | 0 | 0 | |
|
Lake Bracken CC Clubhouse |
120 | 0 | 0 | |
|
Lake Bracken C C Pool Well |
100 | 0 | 0 | |
|
Lake Bracken CC Golf Course Bath Room |
25 | 0 | 0 | |
|
Knox CO Sportsmens Club |
25 | 1 | 1 | |
|
Twisted Sisters Bar and Grill |
30 | 0 | 0 | |
|
Walmart Supercenter #775 |
25 | 0 | 0 | |
|
I74 Spoon River Rest Area |
2,356 | 0 | 0 | |
|
Camp Akita Lodge Well |
134 | 1 | 0 | |
|
Dahinda UM Church |
100 | 0 | 0 | |
|
Camp Akita Bathhouse Well |
60 | 1 | 0 | |
|
Camp Akita Girls Village |
36 | 3 | 1 | |
|
Cactus Country |
30 | 0 | 0 | |
|
Cabin Fever Campground |
26 | 4 | 3 | |
|
HI LO Grocery Abingdon |
25 | 0 | 0 | |
|
HI LO Market Galesburg |
25 | 0 | 0 | |
|
Kooler Ice Victoria |
25 | 0 | 0 | |
|
Quick Stop |
25 | 0 | 0 |
About this data
Water systems are matched to Knox County, nearest to Williamsfield 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.
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.