MOUNT PLEASANT
Michigan — Community Water System — PWSID: MI0004530
System Information
| PWSID | MI0004530 |
| System Name | MOUNT PLEASANT |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 3, 1981 |
| Last Reported | Dec 18, 2025 |
Location & Contact
| State | Michigan |
| City | MT PLEASANT |
| ZIP Code | 48858 |
| Address | 320 W BROADWAY ST |
| Organization | MOORE, JASON |
| Phone | 989-779-5401 |
Population & Service
| Population Served | 21,688 |
| Service Connections | 5,618 |
Drinking Water Violations (19)
This water system has 19 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 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2023 | Dec 31, 2023 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2022 | Sep 30, 2022 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Sep 1, 2022 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Sep 1, 2022 | Sep 30, 2022 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Sep 1, 2022 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Sep 1, 2022 | Sep 30, 2022 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Sep 1, 2022 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Sep 1, 2022 | Sep 30, 2022 | Interim Enhanced Surface Water Treatment Rule | TT | Yes | No | — | — | — | Resolved | Sep 1, 2022 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Jul 1, 2017 | Jul 31, 2017 | Interim Enhanced Surface Water Treatment Rule | MR | No | No | — | — | — | Resolved | Jul 31, 2017 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Jul 1, 2017 | Jul 31, 2017 | Interim Enhanced Surface Water Treatment Rule | MR | No | No | — | — | — | Resolved | Jul 31, 2017 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Jul 1, 2017 | Jul 31, 2017 | Interim Enhanced Surface Water Treatment Rule | MR | No | No | — | — | — | Resolved | Jul 31, 2017 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Jul 1, 2017 | Jul 31, 2017 | Interim Enhanced Surface Water Treatment Rule | MR | No | No | — | — | — | Resolved | Jul 31, 2017 | Interim and Long Term 1 Enhanced Surface Water Treatment Rule |
| Oct 1, 2016 | Oct 31, 2016 | E. COLI | MR | No | Yes | — | — | — | Resolved | Oct 31, 2016 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Oct 1, 2016 | Oct 31, 2016 | E. COLI | MR | No | Yes | — | — | — | Resolved | Oct 31, 2016 | Long Term 2 Enhanced Surface Water Treatment Rule |
| Oct 1, 2016 | Oct 31, 2016 | E. COLI | MR | No | Yes | — | — | — | Resolved | Oct 31, 2016 | Long Term 2 Enhanced Surface Water Treatment Rule |
| — | — | — | 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.