HILLSDALE
Michigan — Community Water System — PWSID: MI0003170
System Information
| PWSID | MI0003170 |
| System Name | HILLSDALE |
| 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 | Dec 18, 2025 |
Location & Contact
| State | Michigan |
| City | HILLSDALE |
| ZIP Code | 49242 |
| Address | 45 MONROE ST |
| Organization | MACKIE, DAVID |
| Phone | 517-437-6444 |
Population & Service
| Population Served | 8,163 |
| Service Connections | 4,016 |
Drinking Water Violations (17)
This water system has 17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MCL | Yes | No | .098 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MCL | Yes | No | .098 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MCL | Yes | No | .098 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MCL | Yes | No | .098 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | Total Haloacetic Acids (HAA5) | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2022 | Jun 30, 2022 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2022 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2017 | Jan 31, 2018 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jan 31, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2017 | Jan 31, 2018 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jan 31, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2017 | Jan 31, 2018 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jan 31, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2017 | Jan 31, 2018 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jan 31, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Nov 1, 2017 | Jan 31, 2018 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jan 31, 2018 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
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.