ST CHARLES CO PWSD #2 WRIGHT CITY
Missouri — Community Water System — PWSID: MO6010874
System Information
| PWSID | MO6010874 |
| System Name | ST CHARLES CO PWSD #2 WRIGHT CITY |
| 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 | Dec 31, 2025 |
Location & Contact
| State | Missouri |
| City | O FALLON |
| ZIP Code | 63368-0000 |
| Address | 100 WATER DR |
| Organization | DUNN, KEVIN |
| Phone | 636-561-3737 |
Population & Service
| Population Served | 3,550 |
| Service Connections | 1,820 |
Drinking Water Violations (70)
This water system has 70 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2024 | Dec 31, 2024 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2024 | Dec 31, 2024 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2024 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Dec 1, 2021 | Dec 31, 2021 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Dec 31, 2021 | Revised Total Coliform Rule |
| Dec 1, 2021 | Dec 31, 2021 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Dec 31, 2021 | Revised Total Coliform Rule |
| Dec 1, 2021 | Dec 31, 2021 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Dec 31, 2021 | Revised Total Coliform Rule |
| Dec 1, 2021 | Dec 31, 2021 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Dec 31, 2021 | Revised Total Coliform Rule |
| Dec 1, 2014 | Dec 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2014 | Total Coliform Rule |
| Dec 1, 2014 | Dec 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2014 | Total Coliform Rule |
| Dec 1, 2014 | Dec 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2014 | Total Coliform Rule |
| Dec 1, 2014 | Dec 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2014 | Total Coliform Rule |
| Oct 1, 2014 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | May 14, 2015 | Ground Water Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Oct 1, 2014 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | May 14, 2015 | Ground Water Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Oct 1, 2014 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | May 14, 2015 | Ground Water Rule |
| Oct 1, 2014 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | May 14, 2015 | Ground Water Rule |
| Sep 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Sep 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Sep 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Sep 1, 2014 | Sep 30, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2014 | Total Coliform Rule |
| Jan 1, 2014 | Jan 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2014 | Total Coliform Rule |
| Jan 1, 2014 | Jan 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2014 | Total Coliform Rule |
| Jan 1, 2014 | Jan 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2014 | Total Coliform Rule |
| Jan 1, 2014 | Jan 31, 2014 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2014 | Total Coliform Rule |
| Dec 1, 2013 | Dec 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | Total Coliform Rule |
| Dec 1, 2013 | Dec 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | Total Coliform Rule |
| Dec 1, 2013 | Dec 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | Total Coliform Rule |
| Dec 1, 2013 | Dec 31, 2013 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2013 | Total Coliform Rule |
| Jul 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 28, 2014 | Consumer Confidence Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Feb 1, 2009 | Feb 28, 2009 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2009 | Total Coliform Rule |
| Apr 1, 2006 | Apr 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2006 | Total Coliform Rule |
| Apr 1, 2006 | Apr 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2006 | Total Coliform Rule |
| Apr 1, 2006 | Apr 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2006 | Total Coliform Rule |
| Apr 1, 2006 | Apr 30, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2006 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Mar 1, 2000 | Mar 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2000 | Total Coliform Rule |
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.