CHELSEA
Michigan — Community Water System — PWSID: MI0001370
System Information
| PWSID | MI0001370 |
| System Name | CHELSEA |
| 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 | CHELSEA |
| ZIP Code | 48118 |
| Address | 305 S MAIN ST STE 100 |
| Organization | COLBURN, MARTIN |
| Phone | 734-475-1771 |
Population & Service
| Population Served | 5,474 |
| Service Connections | 2,000 |
Drinking Water Violations (24)
This water system has 24 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, 2005 | — | Other | No | No | — | — | — | Resolved | Jul 7, 2005 | — | |
| Jul 1, 2005 | — | Other | No | No | — | — | — | Resolved | Jul 7, 2005 | — | |
| Jul 1, 2005 | — | Other | No | No | — | — | — | Resolved | Jul 7, 2005 | — | |
| Jun 1, 2003 | May 31, 2004 | TT | Yes | No | — | TT | — | Resolved | May 31, 2004 | — | |
| Jun 1, 2003 | May 31, 2004 | TT | Yes | No | — | TT | — | Resolved | May 31, 2004 | — | |
| Jun 1, 2003 | May 31, 2004 | TT | Yes | No | — | TT | — | Resolved | May 31, 2004 | — | |
| Jun 1, 2003 | May 31, 2004 | TT | Yes | No | — | TT | — | Resolved | May 31, 2004 | — | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 9, 1996 | — | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 9, 1996 | — | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 9, 1996 | — | |
| Aug 1, 1996 | Aug 31, 1996 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 9, 1996 | — | |
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 21, 1995 | — | |
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 21, 1995 | — | |
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 21, 1995 | — | |
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 21, 1995 | — | |
| Oct 1, 1993 | Oct 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1993 | — | |
| Oct 1, 1993 | Oct 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1993 | — | |
| Oct 1, 1993 | Oct 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1993 | — | |
| Oct 1, 1993 | Oct 31, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 1993 | — | |
| — | — | — | 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.