Public water system · IL1990500
ActiveJohnston City
Community water system in Williamson County, Illinois, drawing primarily on purchased surface water.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,509
Service connections
1,913
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
Violations & enforcement
Violations data landing soon.
EPA SDWA violation and enforcement records for Johnston City are being ingested from EPA ECHO (updated quarterly) and will appear here. Until then, check EPA ECHO for current compliance history.
Johnston City: frequently asked questions
Is Johnston City's water safe to drink?
Johnston City 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 Johnston City?
Johnston City (PWSID IL1990500) is a local government-owned community water system, regulated by the IL state drinking water program.
How many people does Johnston City serve?
Johnston City reports serving 3,509 people through 1,913 service connections in Williamson County, Illinois.
Where does Johnston City 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 |