Caledonia
Minnesota — Community Water System — PWSID: MN1280002
System Information
| PWSID | MN1280002 |
| System Name | Caledonia |
| 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 | Jan 24, 1981 |
| Last Reported | Nov 25, 2025 |
Location & Contact
| State | Minnesota |
| City | Caledonia |
| ZIP Code | 55921 |
| Address | Caledonia City Hall |
| Organization | Caledonia City Council |
| Phone | 5077253450 |
Population & Service
| Population Served | 2,824 |
| Service Connections | 1,230 |
Drinking Water Violations (18)
This water system has 18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2023 | Dec 31, 2023 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2023 | Radionuclides and Revised Rad Rule |
| Oct 1, 2023 | Dec 31, 2023 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2023 | Radionuclides and Revised Rad Rule |
| Oct 1, 2023 | Dec 31, 2023 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2023 | Radionuclides and Revised Rad Rule |
| Jan 1, 2023 | Mar 31, 2023 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2023 | Radionuclides and Revised Rad Rule |
| Jan 1, 2023 | Mar 31, 2023 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2023 | Radionuclides and Revised Rad Rule |
| Jan 1, 2023 | Mar 31, 2023 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2023 | Radionuclides and Revised Rad Rule |
| Jan 1, 2023 | Mar 31, 2023 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2023 | Radionuclides and Revised Rad Rule |
| Jan 1, 2023 | Mar 31, 2023 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Mar 31, 2023 | Radionuclides and Revised Rad Rule |
| Jan 1, 2023 | Mar 31, 2023 | Gross Alpha, Excl. Radon and U | MR | No | Yes | — | 15 pCi/L | — | Resolved | Mar 31, 2023 | Radionuclides and Revised Rad Rule |
| Oct 1, 1999 | Dec 31, 1999 | Tetrachloroethylene | MCL | Yes | No | 5.9 | 0.005 mg/L | — | Resolved | Dec 31, 1999 | Volatile Organic Chemicals |
| Oct 1, 1999 | Dec 31, 1999 | Tetrachloroethylene | MCL | Yes | No | 5.9 | 0.005 mg/L | — | Resolved | Dec 31, 1999 | Volatile Organic Chemicals |
| Oct 1, 1999 | Dec 31, 1999 | Tetrachloroethylene | MCL | Yes | No | 5.9 | 0.005 mg/L | — | Resolved | Dec 31, 1999 | Volatile Organic Chemicals |
| Oct 1, 1999 | Dec 31, 1999 | Tetrachloroethylene | MCL | Yes | No | 5.9 | 0.005 mg/L | — | Resolved | Dec 31, 1999 | Volatile Organic Chemicals |
| — | — | — | 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.