Public water system · IL1990400
ActiveHerrin
Community water system in Williamson County, Illinois, drawing primarily on purchased surface water.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
12,747
Service connections
6,127
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | 4H | 5200 | No | Unaddressed |
| 2025-07-01 | 52 | 5000 | No | Unaddressed |
| 2025-07-01 | 72 | 7000 | No | Resolved |
| 2024-07-01 | 27 | 2950 | No | Resolved |
| 1977-06-30 | 03 | 4000 | No | Archived |
Herrin: frequently asked questions
Is Herrin's water safe to drink?
Herrin is an active community water system regulated under the Safe Drinking Water Act, overseen by the IL state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Herrin?
Herrin (PWSID IL1990400) is a local government-owned community water system, regulated by the IL state drinking water program.
How many people does Herrin serve?
Herrin reports serving 12,747 people through 6,127 service connections in Williamson County, Illinois.
Where does Herrin get its water?
EPA SDWIS lists this system's primary water source as purchased surface water.
Other water systems in Williamson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Georgetown | Williamson | 191,639 | Community | Surface water |
| City of Round Rock | Williamson | 130,662 | Community | Surface water |
| City of Leander | Williamson | 98,330 | Community | Surface water |
| City of Cedar Park | Williamson | 86,939 | Community | Surface water |
| Franklin Water Dept | Williamson | 77,222 | Community | Surface water |
| H.B.& T.S. Utility District | Williamson | 40,094 | Community | Purchased surface water |