Niagara Cave, Inc.
Minnesota - Transient Non-Community - PWSID: MN5230103
System Information
| PWSID | MN5230103 |
| System Name | Niagara Cave, Inc. |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 7, 1983 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | Minnesota |
| City | Harmony |
| ZIP Code | 55939 |
| Address | PO Box 444 |
| Organization | Niagara Cave, Inc. |
| Phone | - |
Population & Service
| Population Served | 150 |
| Service Connections | 1 |
Drinking Water Violations (28)
This water system has 28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2007 | Sep 30, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2007 | - | |
| Sep 1, 2007 | Sep 30, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2007 | - | |
| Sep 1, 2007 | Sep 30, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2007 | - | |
| Sep 1, 2007 | Sep 30, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2007 | - | |
| Sep 1, 2007 | Sep 30, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2007 | - | |
| Sep 1, 2007 | Sep 30, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2007 | - | |
| Sep 1, 2007 | Sep 30, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2007 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 18, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 18, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 18, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 18, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 18, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 18, 2005 | - | |
| Apr 1, 2005 | Apr 30, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Apr 18, 2005 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Aug 1, 2004 | Aug 31, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 2004 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 22, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 22, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 22, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 22, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 22, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 22, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 22, 2003 | - |
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.