ST CHARLES COUNTY AIRPORT
Missouri - Transient Non-Community - PWSID: MO6222456
System Information
| PWSID | MO6222456 |
| System Name | ST CHARLES COUNTY AIRPORT |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Aug 10, 2002 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Missouri |
| City | PORTAGE DES SIOUX |
| ZIP Code | 63373-0000 |
| Address | 6390 GRAFTON FERRY ROAD |
| Organization | WISS, DENNIS |
| Phone | 636-949-1893 |
Population & Service
| Population Served | 25 |
| Service Connections | 4 |
Drinking Water Violations (34)
This water system has 34 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 2015 | Dec 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2015 | - | |
| Dec 1, 2015 | Dec 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2015 | - | |
| Dec 1, 2015 | Dec 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2015 | - | |
| Dec 1, 2015 | Dec 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2015 | - | |
| Jun 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Jun 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Jun 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| Jun 1, 2011 | Jun 30, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 2011 | - | |
| May 1, 2011 | - | MR | No | Yes | - | - | - | Resolved | Feb 28, 2019 | - | |
| May 1, 2011 | - | MR | No | Yes | - | - | - | Resolved | Feb 28, 2019 | - | |
| May 1, 2011 | - | MR | No | Yes | - | - | - | Resolved | Feb 28, 2019 | - | |
| May 1, 2011 | - | MR | No | Yes | - | - | - | Resolved | Feb 28, 2019 | - | |
| Jul 1, 2010 | - | MR | No | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| Jul 1, 2010 | - | MR | No | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| Jul 1, 2010 | - | MR | No | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| Jul 1, 2010 | - | MR | No | No | - | - | - | Resolved | Feb 28, 2019 | - | |
| 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 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2002 | - | |
| Sep 1, 2002 | Sep 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2002 | - | |
| Sep 1, 2002 | Sep 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2002 | - | |
| Sep 1, 2002 | Sep 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2002 | - | |
| Sep 1, 2002 | Sep 30, 2002 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2002 | - | |
| May 1, 2001 | May 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2001 | - | |
| May 1, 2001 | May 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2001 | - | |
| May 1, 2001 | May 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2001 | - | |
| Feb 1, 2000 | Feb 29, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Feb 29, 2000 | - | |
| Feb 1, 2000 | Feb 29, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Feb 29, 2000 | - | |
| Feb 1, 2000 | Feb 29, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Feb 29, 2000 | - |
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.