MAGNOLIA-MARKRIDGE PARK SUBDIVISION
Missouri — Community Water System — PWSID: LA1055137
System Information
| PWSID | LA1055137 |
| System Name | MAGNOLIA-MARKRIDGE PARK SUBDIVISION |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 14, 1983 |
| Last Reported | Nov 14, 2025 |
Location & Contact
| State | Missouri |
| City | DES PERES |
| ZIP Code | 63131 |
| Address | CSWR MAGNOLIA |
| Organization | COX, JOSIAH |
| Phone | 314-736-4672 |
Population & Service
| Population Served | 468 |
| Service Connections | 156 |
Drinking Water Violations (12)
This water system has 12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 28, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 7, 2021 | Lead and Copper Rule |
| Apr 28, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 7, 2021 | Lead and Copper Rule |
| Oct 9, 2015 | — | Public Notice | Other | No | No | — | — | — | Resolved | Jan 14, 2016 | Public Notice Rule and Revised PN Rule |
| Sep 1, 2013 | Aug 31, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2013 | Aug 31, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2013 | Aug 31, 2013 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2013 | Aug 31, 2013 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2013 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2013 | — | Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | No | Yes | — | — | — | Resolved | Aug 31, 2015 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Dec 19, 2011 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Mar 3, 2016 | Ground Water Rule |
| Dec 19, 2011 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Mar 3, 2016 | Ground Water Rule |
| Jan 1, 1994 | Jun 30, 1995 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 30, 1995 | Lead and Copper Rule |
| Jul 1, 1993 | Dec 31, 1994 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 1994 | Lead and Copper 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.