Illinois
Henderson County drinking water quality
29 active public water systems serve 10,235 people in Henderson County. 9 are compliant, 20 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
7 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Dallas Rural Water District Dallas City |
6,370 | 2 | 0 | |
|
Oquawka Oquawka |
1,125 | 1 | 0 | |
|
Stronghurst Stronghurst |
838 | 1 | 1 | |
|
Gladstone Gladstone |
387 | 1 | 0 | |
|
Biggsville Biggsville |
273 | 2 | 0 | |
|
Raritan Raritan |
180 | 0 | 0 | |
|
Media Media |
139 | 2 | 0 |
Non-community systems (22: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ayerco Convenience Center #17 |
200 | 0 | 0 | |
|
Tharps Subway Oquawka |
125 | 0 | 0 | |
|
Charlies Angels |
50 | 0 | 0 | |
|
Cruisers Pit Stop |
50 | 1 | 1 | |
|
Western Illinois Boat Club |
38 | 1 | 0 | |
|
Carthage Lake Club |
35 | 2 | 0 | |
|
DA Moore Trucking LLC |
35 | 1 | 0 | |
|
Nutrien AG Solutions |
35 | 4 | 1 | |
|
Buzzing Pines Cafe |
30 | 0 | 0 | |
|
Big River Equestrian Area Well |
25 | 2 | 0 | |
|
Big River Shady Pines Camp |
25 | 2 | 0 | |
|
Big River State Forest Office |
25 | 1 | 0 | |
|
Fishers Food Center (133280) |
25 | 0 | 0 | |
|
Ideal Hunting and Fishing Club |
25 | 2 | 1 | |
|
Lucky Duck Lounge, LLC |
25 | 0 | 0 | |
|
New Crystal Lake |
25 | 0 | 0 | |
|
Sandy Oaks Cmpgrnd/dale Garner |
25 | 3 | 1 | |
|
Sin City Billards |
25 | 1 | 0 | |
|
Stronghurst Foods |
25 | 0 | 0 | |
|
Tharps Splash and Dash Car Wash |
25 | 1 | 0 | |
|
The Belted Cow Orchard |
25 | 1 | 1 | |
|
Tiny Acers |
25 | 1 | 0 |
Inactive systems (158, 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.