MALDEN PWS
Missouri - Community Water System - PWSID: MO4010490
System Information
| PWSID | MO4010490 |
| System Name | MALDEN 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 | MALDEN |
| ZIP Code | 63863-0000 |
| Address | 607 N DOUGLAS ST |
| Organization | KOOYMAN, DENTON |
| Phone | 573-276-4502 |
Population & Service
| Population Served | 3,706 |
| Service Connections | 1,802 |
Drinking Water Violations (69)
This water system has 69 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, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 26, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 26, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 26, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 26, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MCL | Yes | No | - | - | - | Resolved | Sep 26, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jul 1, 2020 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2020 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2020 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Nov 9, 2020 | - | |
| Jul 1, 2013 | Jul 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2013 | - | |
| Jul 1, 2013 | Jul 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2013 | - | |
| Jul 1, 2013 | Jul 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2013 | - | |
| Jul 1, 2013 | Jul 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| Sep 1, 2012 | Sep 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2012 | - | |
| Sep 1, 2012 | Sep 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2012 | - | |
| Sep 1, 2012 | Sep 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2012 | - | |
| Sep 1, 2012 | Sep 30, 2012 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2012 | - | |
| Apr 1, 2008 | - | MR | No | No | - | - | - | Resolved | May 9, 2008 | - | |
| Apr 1, 2008 | - | MR | No | No | - | - | - | Resolved | May 9, 2008 | - | |
| 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 | - | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | No | - | 5% of samples | - | Archived | Nov 30, 1996 | - | |
| Oct 1, 1995 | Oct 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1995 | - | |
| Oct 1, 1995 | Oct 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1995 | - | |
| Oct 1, 1995 | Oct 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1995 | - | |
| Oct 1, 1995 | Oct 31, 1995 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1995 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Mar 1, 1994 | Mar 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1994 | - | |
| Oct 11, 1993 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 1993 | - | |
| Oct 11, 1993 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 1993 | - | |
| Oct 11, 1993 | - | MR | No | No | - | TT | - | Resolved | Oct 10, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Aug 1, 1993 | Aug 31, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Aug 31, 1993 | - | |
| Oct 1, 1992 | Oct 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1992 | - | |
| Oct 1, 1992 | Oct 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1992 | - | |
| Oct 1, 1992 | Oct 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1992 | - | |
| May 1, 1991 | May 31, 1991 | MR | No | No | - | 5% of samples | - | Archived | May 31, 1991 | - | |
| Apr 1, 1991 | Apr 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Apr 30, 1991 | - |
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.