MARENGO, IL · McHenry County
MARENGO 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)
- IL1110650
- System type
- Community Water System
- Population served
- 7,572
- Service connections
- 2,810
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Lead Consumer Notice
—Lead and Copper Rule
October 1, 2009 – December 18, 2009
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2000 – June 1, 2001
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 1998 – November 30, 1998
ArchivedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
January 1, 1993 – December 31, 1995
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 1992 – November 30, 1992
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
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 |
|---|---|---|---|---|
| October 1, 2009 – December 18, 2009 | Lead Consumer Notice | Lead and Copper Rule | — | Resolved |
| October 1, 2000 – June 1, 2001 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| November 1, 1998 – November 30, 1998 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| January 1, 1993 – December 31, 1995 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
| November 1, 1992 – November 30, 1992 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| June 30, 1977 – June 29, 1981 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- December 18, 2009State Compliance achieved1 linked violation
- October 5, 2009State Violation/Reminder Notice1 linked violation
- January 15, 1999State Violation/Reminder Notice1 linked violation
- January 15, 1999State Public Notification requested1 linked violation
- January 9, 1993State Violation/Reminder Notice1 linked violation
- January 9, 1993State Public Notification requested1 linked violation
Contact
PROFFITT, MICHAEL
815-568-7112
MARENGO, IL 60152