IONIA PWS
Missouri - Community Water System - PWSID: MO3010400
System Information
| PWSID | MO3010400 |
| System Name | IONIA PWS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 7, 1980 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Missouri |
| City | IONIA |
| ZIP Code | 65335-0000 |
| Address | 503 N MAIN ST |
| Organization | DEMOSS, ARIE |
| Phone | 417-399-9108 |
Population & Service
| Population Served | 88 |
| Service Connections | 44 |
Drinking Water Violations (56)
This water system has 56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 2025 | - | MR | No | Yes | - | - | - | Resolved | Oct 23, 2025 | - | |
| Aug 1, 2025 | - | MR | No | Yes | - | - | - | Resolved | Oct 23, 2025 | - | |
| Aug 1, 2025 | - | MR | No | Yes | - | - | - | Resolved | Oct 23, 2025 | - | |
| Aug 1, 2025 | - | MR | No | Yes | - | - | - | Resolved | Oct 23, 2025 | - | |
| Dec 1, 2024 | - | MR | No | Yes | - | - | - | Resolved | Oct 23, 2025 | - | |
| Dec 1, 2024 | - | MR | No | Yes | - | - | - | Resolved | Oct 23, 2025 | - | |
| Dec 1, 2024 | - | MR | No | Yes | - | - | - | Resolved | Oct 23, 2025 | - | |
| Dec 1, 2024 | - | MR | No | Yes | - | - | - | Resolved | Oct 23, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2024 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2024 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2024 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2024 | - | |
| Oct 1, 2014 | Oct 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2014 | - | |
| Oct 1, 2014 | Oct 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2014 | - | |
| Oct 1, 2014 | Oct 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2014 | - | |
| Oct 1, 2014 | Oct 31, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2014 | - | |
| Jun 1, 2012 | Jun 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2012 | - | |
| Jun 1, 2012 | Jun 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2012 | - | |
| Jun 1, 2012 | Jun 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2012 | - | |
| Jul 1, 2011 | Jul 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2011 | - | |
| Jul 1, 2011 | Jul 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2011 | - | |
| Jul 1, 2011 | Jul 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2011 | - | |
| Jul 1, 2011 | Jul 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2011 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Jul 1, 2008 | Jul 31, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2008 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Jul 1, 2006 | Jul 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2006 | - | |
| Jul 1, 2006 | Jul 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2006 | - | |
| Jul 1, 2006 | Jul 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2006 | - | |
| Jul 1, 2006 | Jul 31, 2006 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2006 | - | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2003 | - | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2003 | - | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2003 | - | |
| Oct 1, 2003 | Oct 31, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2003 | - | |
| Jun 1, 2001 | Jun 30, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2001 | - | |
| Jun 1, 2001 | Jun 30, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2001 | - | |
| Jun 1, 2001 | Jun 30, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2001 | - | |
| Jun 1, 2001 | Jun 30, 2001 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 2001 | - | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1996 | - | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1996 | - | |
| Dec 1, 1994 | Dec 31, 1994 | MR | No | No | - | 5% of samples | - | Archived | Dec 31, 1994 | - | |
| Dec 1, 1994 | Dec 31, 1994 | MR | No | No | - | 5% of samples | - | Archived | Dec 31, 1994 | - |
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.