WONDER LAKE
Illinois — Community Water System — PWSID: IL1115750
System Information
| PWSID | IL1115750 |
| System Name | WONDER LAKE |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1981 |
| Last Reported | Dec 4, 2025 |
Location & Contact
| State | Illinois |
| City | WONDER LAKE |
| ZIP Code | 60097 |
| Address | Village of Wonder Lake |
| Organization | MANGUM, JAMES |
| Phone | 815-277-9589 |
Population & Service
| Population Served | 3,870 |
| Service Connections | 1,548 |
Drinking Water Violations (399)
This water system has 399 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Unaddressed | — | Lead and Copper Rule |
| Jul 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Unaddressed | — | Lead and Copper Rule |
| Apr 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 27, 2025 | Lead and Copper Rule |
| Apr 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 27, 2025 | Lead and Copper Rule |
| Feb 10, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Apr 8, 2024 | Public Notice Rule and Revised PN Rule |
| Feb 10, 2024 | — | Public Notice | Other | No | No | — | — | — | Resolved | Apr 8, 2024 | Public Notice Rule and Revised PN Rule |
| Apr 2, 2023 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Jun 22, 2023 | Lead and Copper Rule |
| Apr 2, 2023 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Jun 22, 2023 | Lead and Copper Rule |
| Apr 2, 2023 | — | Lead and Copper Rule | TT | Yes | No | — | TT | — | Resolved | Jun 22, 2023 | Lead and Copper Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Jan 1, 2022 | Dec 31, 2022 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2022 | Nitrate Rule |
| Mar 12, 2005 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 28, 2005 | Public Notice Rule and Revised PN Rule |
| Mar 12, 2005 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 28, 2005 | Public Notice Rule and Revised PN Rule |
| Mar 12, 2005 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 28, 2005 | Public Notice Rule and Revised PN Rule |
| Mar 12, 2005 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 28, 2005 | Public Notice Rule and Revised PN Rule |
| Mar 12, 2005 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 28, 2005 | Public Notice Rule and Revised PN Rule |
| Mar 12, 2005 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 28, 2005 | Public Notice Rule and Revised PN Rule |
| Mar 12, 2005 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 28, 2005 | Public Notice Rule and Revised PN Rule |
| Mar 12, 2005 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jul 28, 2005 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 30, 2005 | Lead and Copper Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 30, 2005 | Lead and Copper Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 30, 2005 | Lead and Copper Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 30, 2005 | Lead and Copper Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 30, 2005 | Lead and Copper Rule |
| Oct 1, 2004 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 30, 2005 | Lead and Copper Rule |
| Apr 1, 2004 | Jun 30, 2004 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2004 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2004 | Jun 30, 2004 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2004 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2004 | Jun 30, 2004 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2004 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2004 | Jun 30, 2004 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2004 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jan 31, 2004 | Total Coliform Rule |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jan 31, 2004 | Total Coliform Rule |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jan 31, 2004 | Total Coliform Rule |
| May 1, 2002 | May 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | May 31, 2002 | Total Coliform Rule |
| May 1, 2002 | May 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | May 31, 2002 | Total Coliform Rule |
| May 1, 2002 | May 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | May 31, 2002 | Total Coliform Rule |
| Jan 1, 2001 | Jan 31, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Jan 31, 2001 | Total Coliform Rule |
| Jan 1, 2001 | Jan 31, 2001 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Jan 31, 2001 | Total Coliform Rule |
| Jul 1, 1998 | Jul 31, 1998 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1998 | Total Coliform Rule |
| Jul 1, 1998 | Jul 31, 1998 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1998 | Total Coliform Rule |
| Jul 1, 1995 | Jul 31, 1995 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1995 | Total Coliform Rule |
| Jul 1, 1995 | Jul 31, 1995 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1995 | Total Coliform Rule |
| May 1, 1993 | May 31, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | May 31, 1993 | Total Coliform Rule |
| May 1, 1993 | May 31, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | May 31, 1993 | Total Coliform Rule |
| Apr 1, 1993 | Jun 30, 1993 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jun 30, 1993 | Volatile Organic Chemicals |
| Apr 1, 1993 | Jun 30, 1993 | o-Dichlorobenzene | MR | No | Yes | — | 0.6 mg/L | — | Archived | Jun 30, 1993 | Volatile Organic Chemicals |
| Apr 1, 1993 | Jun 30, 1993 | o-Dichlorobenzene | MR | No | Yes | — | 0.6 mg/L | — | Archived | Jun 30, 1993 | Volatile Organic Chemicals |
| Apr 1, 1993 | Jun 30, 1993 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jun 30, 1993 | Volatile Organic Chemicals |
| Apr 1, 1993 | Jun 30, 1993 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Archived | Jun 30, 1993 | Volatile Organic Chemicals |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.