WILLIAMSTON, CITY OF
Michigan — Community Water System — PWSID: MI0007120
System Information
| PWSID | MI0007120 |
| System Name | WILLIAMSTON, CITY OF |
| 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 | WILLIAMSTON |
| ZIP Code | 48895 |
| Address | 781 PROGRESS CT |
| Organization | HANIFAN, JOHN |
| Phone | — |
Population & Service
| Population Served | 3,917 |
| Service Connections | 1,590 |
Drinking Water Violations (22)
This water system has 22 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 1, 2019 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Jul 1, 2019 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Jul 1, 2019 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Jul 1, 2019 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Jul 1, 2019 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Jul 1, 2019 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Jul 1, 2008 | Sep 16, 2008 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | — | Resolved | Sep 16, 2008 | — | |
| Jul 1, 2008 | Sep 16, 2008 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | — | Resolved | Sep 16, 2008 | — | |
| Jul 1, 2008 | Sep 16, 2008 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | — | Resolved | Sep 16, 2008 | — | |
| Jul 1, 2008 | Sep 16, 2008 | MCL | Yes | No | 6 PCI/L | 5 pCi/L | — | Resolved | Sep 16, 2008 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.060 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 30, 2005 | — | |
| Jun 1, 2005 | Sep 30, 2005 | MR | No | No | — | 0.080 mg/L | — | Resolved | Sep 30, 2005 | — | |
| — | — | — | 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.