DUPO, IL · St. Clair County
DUPO Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.
System facts
- System ID (PWSID)
- IL1630350
- System type
- Community Water System
- Population served
- 4,684
- Service connections
- 2,165
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2024 – October 28, 2024
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
March 1, 1998 – March 31, 1998
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
February 1, 1998 – February 28, 1998
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2024 – October 28, 2024 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| March 1, 1998 – March 31, 1998 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| February 1, 1998 – February 28, 1998 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- October 28, 2024State Compliance achieved3 linked violations
- August 5, 2019State Compliance achieved1 linked violation
- July 17, 2019State Violation/Reminder Notice1 linked violation
- May 30, 1998State Public Notification requested1 linked violation
- May 30, 1998State Violation/Reminder Notice1 linked violation
- April 30, 1998State Violation/Reminder Notice1 linked violation
- April 30, 1998State Public Notification requested1 linked violation
Contact
BASINSKI, JOE
618-779-0300
DUPO, IL 62239