CASSOPOLIS
Michigan - Community Water System - PWSID: MI0001250
System Information
| PWSID | MI0001250 |
| System Name | CASSOPOLIS |
| 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 | CASSOPOLIS |
| ZIP Code | 49031 |
| Address | 121 N DISBROW ST |
| Organization | LAGROW, EMILIE |
| Phone | 269-445-8648 |
Population & Service
| Population Served | 1,815 |
| Service Connections | 842 |
Drinking Water Violations (48)
This water system has 48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 14, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 14, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 14, 2023 | - | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 14, 2023 | - | |
| Oct 11, 2021 | - | RPT | No | No | - | - | - | Resolved | Nov 19, 2021 | - | |
| Oct 11, 2021 | - | RPT | No | No | - | - | - | Resolved | Nov 19, 2021 | - | |
| Oct 11, 2021 | - | RPT | No | No | - | - | - | Resolved | Nov 19, 2021 | - | |
| Oct 11, 2021 | - | RPT | No | No | - | - | - | Resolved | Nov 19, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2020 | Sep 30, 2021 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2021 | - | |
| Oct 1, 2017 | Sep 30, 2018 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Oct 1, 2017 | Sep 30, 2018 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Oct 1, 2017 | Sep 30, 2018 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Oct 1, 2017 | Sep 30, 2018 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Oct 1, 2017 | Sep 30, 2018 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Oct 1, 2017 | Sep 30, 2018 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2018 | - | |
| Jan 1, 2016 | Sep 30, 2024 | MR | No | Yes | - | 30 ug/L | - | Resolved | Sep 30, 2024 | - | |
| Jan 1, 2016 | Sep 30, 2024 | MR | No | Yes | - | 30 ug/L | - | Resolved | Sep 30, 2024 | - | |
| Jan 1, 2016 | Sep 30, 2024 | MR | No | Yes | - | 30 ug/L | - | Resolved | Sep 30, 2024 | - | |
| Jan 1, 2016 | Sep 30, 2024 | MR | No | Yes | - | 30 ug/L | - | Resolved | Sep 30, 2024 | - | |
| Aug 1, 2013 | Aug 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2013 | - | |
| Aug 1, 2013 | Aug 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2013 | - | |
| Aug 1, 2013 | Aug 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 23, 2013 | - | |
| Nov 1, 1995 | Nov 30, 1995 | MCL | Yes | No | - | 5% of samples | - | Archived | Nov 30, 1995 | - | |
| Nov 1, 1995 | Nov 30, 1995 | MCL | Yes | No | - | 5% of samples | - | Archived | Nov 30, 1995 | - | |
| Jul 1, 1995 | Jul 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1995 | - | |
| Jul 1, 1995 | Jul 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1995 | - | |
| Jul 1, 1995 | Jul 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1995 | - | |
| Jul 1, 1995 | Jul 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 1995 | - | |
| May 1, 1995 | Apr 30, 1998 | MCL | Yes | No | 13.2 | 10 mg/L | - | Resolved | Jun 1, 1995 | - | |
| May 1, 1995 | Apr 30, 1998 | MCL | Yes | No | 13.2 | 10 mg/L | - | Resolved | Jun 1, 1995 | - | |
| May 1, 1995 | Apr 30, 1998 | MCL | Yes | No | 13.2 | 10 mg/L | - | Resolved | Jun 1, 1995 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1991 | - | |
| Jun 1, 1991 | Jun 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Jun 30, 1991 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | 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.