MENDON
Michigan - Community Water System - PWSID: MI0004240
System Information
| PWSID | MI0004240 |
| System Name | MENDON |
| 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 3, 1981 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Michigan |
| City | MENDON |
| ZIP Code | 49072 |
| Address | 206 W MAIN ST |
| Organization | OLSON, AARON |
| Phone | 269-496-4395 |
Population & Service
| Population Served | 920 |
| Service Connections | 365 |
Drinking Water Violations (93)
This water system has 93 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 30, 2023 | - | Other | No | No | - | - | - | Addressed | - | - | |
| Jul 30, 2023 | - | Other | No | No | - | - | - | Addressed | - | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2023 | - | |
| Jul 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Dec 20, 2022 | - | |
| Jul 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Dec 20, 2022 | - | |
| Jul 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Dec 20, 2022 | - | |
| Jul 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Dec 20, 2022 | - | |
| Sep 1, 2019 | Aug 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2020 | - | |
| Sep 1, 2019 | Aug 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2020 | - | |
| Sep 1, 2019 | Aug 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2020 | - | |
| Jul 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Dec 19, 2019 | - | |
| Jul 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Dec 19, 2019 | - | |
| Jul 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Dec 19, 2019 | - | |
| Dec 1, 2018 | Dec 31, 2018 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2018 | - | |
| Dec 1, 2018 | Dec 31, 2018 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2018 | - | |
| Dec 1, 2018 | Dec 31, 2018 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2018 | - | |
| Dec 1, 2018 | Dec 31, 2018 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2018 | - | |
| Oct 4, 2018 | - | MR | No | No | - | - | - | Resolved | Nov 16, 2018 | - | |
| Oct 4, 2018 | - | MR | No | No | - | - | - | Resolved | Nov 16, 2018 | - | |
| Oct 4, 2018 | - | MR | No | No | - | - | - | Resolved | Nov 16, 2018 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Jan 20, 2017 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Jan 20, 2017 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Jan 20, 2017 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MCL | Yes | No | .117 | 0.080 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MCL | Yes | No | .117 | 0.080 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MCL | Yes | No | .117 | 0.080 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Apr 1, 2006 | Jun 30, 2006 | MCL | Yes | No | .117 | 0.080 mg/L | - | Resolved | Jun 30, 2006 | - | |
| Sep 1, 2001 | Sep 30, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2001 | - | |
| Sep 1, 2001 | Sep 30, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2001 | - | |
| Sep 1, 2001 | Sep 30, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2001 | - | |
| Sep 1, 2001 | Sep 30, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2001 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Aug 1, 1999 | Aug 31, 1999 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1999 | - | |
| Jul 1, 1999 | - | MR | No | No | - | TT | - | Resolved | Jul 27, 1999 | - | |
| Jul 1, 1999 | - | MR | No | No | - | TT | - | Resolved | Jul 27, 1999 | - |
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.