Tonka Bay
Minnesota — Community Water System — PWSID: MN1270013
System Information
| PWSID | MN1270013 |
| System Name | Tonka Bay |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Jan 24, 1981 |
| Last Reported | Nov 25, 2025 |
Location & Contact
| State | Minnesota |
| City | Excelsior |
| ZIP Code | 55331 |
| Address | Tonka Bay City Hall |
| Organization | Tonka Bay City Council |
| Phone | 9524747994 |
Population & Service
| Population Served | 1,442 |
| Service Connections | 684 |
Drinking Water Violations (6)
This water system has 6 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, 1993 | Apr 30, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 1993 | Total Coliform Rule |
| Apr 1, 1993 | Apr 30, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 1993 | Total Coliform Rule |
| Apr 1, 1993 | Apr 30, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 1993 | Total Coliform Rule |
| — | — | — | 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.