ANN ARBOR TOWNSHIP
Michigan — Community Water System — PWSID: MI0000221
System Information
| PWSID | MI0000221 |
| System Name | ANN ARBOR TOWNSHIP |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 13, 1987 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Michigan |
| City | ANN ARBOR |
| ZIP Code | 48105 |
| Address | 3792 PONTIAC TRL |
| Organization | O'CONNELL, DIANE |
| Phone | 734-663-3418 |
Population & Service
| Population Served | 1,338 |
| Service Connections | 535 |
Drinking Water Violations (12)
This water system has 12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 2016 | Feb 28, 2017 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Feb 28, 2017 | — | |
| Dec 1, 2016 | Feb 28, 2017 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Feb 28, 2017 | — | |
| Dec 1, 2016 | Feb 28, 2017 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Feb 28, 2017 | — | |
| Dec 1, 2016 | Feb 28, 2017 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Feb 28, 2017 | — | |
| Dec 1, 2016 | Feb 28, 2017 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Feb 28, 2017 | — | |
| Dec 1, 2016 | Feb 28, 2017 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Feb 28, 2017 | — | |
| Jul 1, 2001 | — | Other | No | No | — | — | — | Resolved | Jul 16, 2001 | — | |
| Nov 1, 1992 | Nov 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1992 | — | |
| Nov 1, 1992 | Nov 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1992 | — | |
| Nov 1, 1992 | Nov 30, 1992 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1992 | — | |
| — | — | — | 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.