LYNDON
Illinois - Community Water System - PWSID: IL1950300
System Information
| PWSID | IL1950300 |
| System Name | LYNDON |
| 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 | Feb 26, 2026 |
Location & Contact
| State | Illinois |
| City | LYNDON |
| ZIP Code | 61261 |
| Address | 605 W Commercial |
| Organization | JOHNSON, MAUREEN |
| Phone | 815-778-4484 |
Population & Service
| Population Served | 537 |
| Service Connections | 248 |
Drinking Water Violations (51)
This water system has 51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2025 | Aug 31, 2025 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Dec 10, 2025 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Dec 10, 2025 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Dec 10, 2025 | - | |
| Jul 2, 2025 | - | RPT | No | No | - | - | - | Resolved | Dec 10, 2025 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2023 | Sep 30, 2023 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2016 | - | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2016 | - | |
| Dec 30, 2013 | - | MR | No | No | - | TT | - | Resolved | Mar 24, 2014 | - | |
| Dec 30, 2013 | - | MR | No | No | - | TT | - | Resolved | Mar 24, 2014 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2013 | - | |
| May 1, 1984 | Apr 30, 1987 | MCL | Yes | No | 14 | 10 mg/L | - | Resolved | Jul 17, 1986 | - | |
| May 1, 1984 | Apr 30, 1987 | MCL | Yes | No | 14 | 10 mg/L | - | Resolved | Jul 17, 1986 | - | |
| May 1, 1984 | Apr 30, 1987 | MCL | Yes | No | 14 | 10 mg/L | - | Resolved | Jul 17, 1986 | - | |
| May 1, 1984 | Apr 30, 1987 | MCL | Yes | No | 14 | 10 mg/L | - | Resolved | Jul 17, 1986 | - | |
| May 1, 1984 | Apr 30, 1987 | MCL | Yes | No | 14 | 10 mg/L | - | Resolved | Jul 17, 1986 | - | |
| May 1, 1984 | Apr 30, 1987 | MCL | Yes | No | 14 | 10 mg/L | - | Resolved | Jul 17, 1986 | - | |
| May 1, 1984 | Apr 30, 1987 | MCL | Yes | No | 14 | 10 mg/L | - | Resolved | Jul 17, 1986 | - | |
| May 1, 1981 | Apr 30, 1984 | MCL | Yes | No | 14 | 10 mg/L | - | Archived | Apr 30, 1984 | - | |
| May 1, 1981 | Apr 30, 1984 | MCL | Yes | No | 14 | 10 mg/L | - | Archived | Apr 30, 1984 | - | |
| May 1, 1981 | Apr 30, 1984 | MCL | Yes | No | 14 | 10 mg/L | - | Archived | Apr 30, 1984 | - | |
| May 1, 1981 | Apr 30, 1984 | MCL | Yes | No | 14 | 10 mg/L | - | Archived | Apr 30, 1984 | - | |
| May 1, 1981 | Apr 30, 1984 | MCL | Yes | No | 14 | 10 mg/L | - | Archived | Apr 30, 1984 | - | |
| May 1, 1981 | Apr 30, 1984 | MCL | Yes | No | 14 | 10 mg/L | - | Archived | Apr 30, 1984 | - | |
| Jun 30, 1977 | Jun 29, 1981 | MR | No | No | - | 15 pCi/L | - | Archived | Jun 29, 1981 | - | |
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| - | - | - | No | No | - | - | - | - | - | - |
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.