ESSEX PWS
Missouri — Community Water System — PWSID: MO4010255
System Information
| PWSID | MO4010255 |
| System Name | ESSEX 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 | Dec 31, 2025 |
Location & Contact
| State | Missouri |
| City | ESSEX |
| ZIP Code | 63846-0000 |
| Address | — |
| Organization | MALLOY, ANGELA |
| Phone | 573-283-5990 |
Population & Service
| Population Served | 399 |
| Service Connections | 260 |
Drinking Water Violations (90)
This water system has 90 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2025 | Jul 31, 2025 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jul 31, 2025 | Ground Water Rule |
| Jul 1, 2025 | Jul 31, 2025 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jul 31, 2025 | Ground Water Rule |
| Jul 1, 2025 | Jul 31, 2025 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jul 31, 2025 | Ground Water Rule |
| Mar 1, 2025 | Mar 31, 2025 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Mar 31, 2025 | Revised Total Coliform Rule |
| Mar 1, 2025 | Mar 31, 2025 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Mar 31, 2025 | Revised Total Coliform Rule |
| Mar 1, 2025 | Mar 31, 2025 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Mar 31, 2025 | Revised Total Coliform Rule |
| Jan 1, 2025 | Jan 31, 2025 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | Ground Water Rule |
| Jan 1, 2025 | Jan 31, 2025 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | Ground Water Rule |
| Jan 1, 2025 | Jan 31, 2025 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | Ground Water Rule |
| Jan 1, 2025 | Jan 31, 2025 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | Ground Water Rule |
| Sep 1, 2024 | Sep 30, 2024 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Sep 30, 2024 | Ground Water Rule |
| Sep 1, 2024 | Sep 30, 2024 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Sep 30, 2024 | Ground Water Rule |
| Sep 1, 2024 | Sep 30, 2024 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Sep 30, 2024 | Ground Water Rule |
| Sep 1, 2024 | Sep 30, 2024 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Sep 30, 2024 | Ground Water Rule |
| May 1, 2024 | May 31, 2024 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | May 31, 2024 | Ground Water Rule |
| May 1, 2024 | May 31, 2024 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | May 31, 2024 | Ground Water Rule |
| May 1, 2024 | May 31, 2024 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | May 31, 2024 | Ground Water Rule |
| May 1, 2024 | May 31, 2024 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | May 31, 2024 | Ground Water Rule |
| Dec 28, 2023 | — | Public Notice | Other | No | No | — | — | — | Resolved | Mar 11, 2024 | Public Notice Rule and Revised PN Rule |
| Nov 3, 2023 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | Nov 14, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Nov 3, 2023 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | Nov 14, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Nov 3, 2023 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | Nov 14, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Nov 3, 2023 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | Nov 14, 2023 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2022 | Jul 31, 2022 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | Revised Total Coliform Rule |
| Jul 1, 2022 | Jul 31, 2022 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | Revised Total Coliform Rule |
| Jul 1, 2022 | Jul 31, 2022 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | Revised Total Coliform Rule |
| Jul 1, 2022 | Jul 31, 2022 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | Revised Total Coliform Rule |
| Jul 1, 2022 | Jul 31, 2022 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | Revised Total Coliform Rule |
| Jul 1, 2022 | Jul 31, 2022 | Revised Total Coliform Rule | MCL | Yes | No | — | — | — | Resolved | Jul 31, 2022 | Revised Total Coliform Rule |
| Jun 1, 2021 | Jun 30, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2021 | Ground Water Rule |
| Jun 1, 2021 | Jun 30, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2021 | Ground Water Rule |
| Jun 1, 2021 | Jun 30, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2021 | Ground Water Rule |
| Jun 1, 2021 | Jun 30, 2021 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2021 | Ground Water Rule |
| Dec 1, 2017 | Dec 31, 2017 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | Ground Water Rule |
| Dec 1, 2017 | Dec 31, 2017 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | Ground Water Rule |
| Dec 1, 2017 | Dec 31, 2017 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | Ground Water Rule |
| Dec 1, 2017 | Dec 31, 2017 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | Ground Water Rule |
| Nov 1, 2016 | Nov 30, 2016 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Nov 30, 2016 | Ground Water Rule |
| Nov 1, 2016 | Nov 30, 2016 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Nov 30, 2016 | Ground Water Rule |
| Nov 1, 2016 | Nov 30, 2016 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Nov 30, 2016 | Ground Water Rule |
| Nov 1, 2016 | Nov 30, 2016 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Nov 30, 2016 | Ground Water Rule |
| Jan 1, 2014 | Jan 31, 2014 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2014 | Ground Water Rule |
| Jan 1, 2014 | Jan 31, 2014 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2014 | Ground Water Rule |
| Jan 1, 2014 | Jan 31, 2014 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2014 | Ground Water Rule |
| Jan 1, 2014 | Jan 31, 2014 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2014 | Ground Water Rule |
| Jan 1, 2014 | Jan 31, 2014 | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jan 31, 2014 | Ground Water Rule |
| Aug 1, 2013 | Aug 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | Total Coliform Rule |
| Aug 1, 2013 | Aug 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | Total Coliform Rule |
| Aug 1, 2013 | Aug 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | Total Coliform Rule |
| Aug 1, 2013 | Aug 31, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2013 | 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.