Heron Lake
Minnesota — Community Water System — PWSID: MN1320002
System Information
| PWSID | MN1320002 |
| System Name | Heron Lake |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| 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 | Heron Lake |
| ZIP Code | 56137-0315 |
| Address | P.O. Box 315 |
| Organization | Heron Lake City Council |
| Phone | 5077932826 |
Population & Service
| Population Served | 691 |
| Service Connections | 296 |
Drinking Water Violations (23)
This water system has 23 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 2, 2025 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Jul 2, 2025 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 1, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 6, 2025 | Lead and Copper Rule |
| Oct 1, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 6, 2025 | Lead and Copper Rule |
| Jan 1, 1994 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 1, 1995 | Lead and Copper Rule |
| Jan 1, 1994 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 1, 1995 | Lead and Copper Rule |
| Jan 1, 1994 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 1, 1995 | Lead and Copper Rule |
| Jan 1, 1994 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 1, 1995 | Lead and Copper Rule |
| Oct 1, 1988 | Sep 30, 1992 | Combined Radium (-226 and -228) | MCL | Yes | No | 11.7 | 5 pCi/L | — | Resolved | Jan 1, 1991 | Radionuclides and Revised Rad Rule |
| Oct 1, 1988 | Sep 30, 1992 | Combined Radium (-226 and -228) | MCL | Yes | No | 11.7 | 5 pCi/L | — | Resolved | Jan 1, 1991 | Radionuclides and Revised Rad Rule |
| Oct 1, 1988 | Sep 30, 1992 | Combined Radium (-226 and -228) | MCL | Yes | No | 11.7 | 5 pCi/L | — | Resolved | Jan 1, 1991 | Radionuclides and Revised Rad Rule |
| Oct 1, 1988 | Sep 30, 1992 | Combined Radium (-226 and -228) | MCL | Yes | No | 11.7 | 5 pCi/L | — | Resolved | Jan 1, 1991 | Radionuclides and Revised Rad Rule |
| Oct 1, 1988 | Sep 30, 1992 | Combined Radium (-226 and -228) | MCL | Yes | No | 11.7 | 5 pCi/L | — | Resolved | Jan 1, 1991 | Radionuclides and Revised Rad Rule |
| Oct 1, 1988 | Sep 30, 1992 | Combined Radium (-226 and -228) | MCL | Yes | No | 11.7 | 5 pCi/L | — | Resolved | Jan 1, 1991 | Radionuclides and Revised Rad Rule |
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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.