WILLIAMSVILLE PWS
Missouri - Community Water System - PWSID: MO4010861
System Information
| PWSID | MO4010861 |
| System Name | WILLIAMSVILLE 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 | WILLIAMSVILLE |
| ZIP Code | 63967-0000 |
| Address | - |
| Organization | JOY, SANDY |
| Phone | 573-998-2745 |
Population & Service
| Population Served | 342 |
| Service Connections | 182 |
Drinking Water Violations (17)
This water system has 17 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, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Dec 6, 2021 | - | |
| Jul 1, 2020 | - | Other | No | No | - | - | - | Resolved | Nov 10, 2020 | - | |
| May 1, 2014 | May 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2014 | - | |
| May 1, 2014 | May 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2014 | - | |
| May 1, 2014 | May 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2014 | - | |
| May 1, 2014 | May 31, 2014 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2014 | - | |
| Jun 24, 1980 | Sep 23, 1983 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 23, 1983 | - | |
| Jun 24, 1980 | Sep 23, 1982 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 23, 1982 | - | |
| Jun 24, 1980 | Sep 23, 1982 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 23, 1982 | - | |
| Jun 24, 1980 | Sep 23, 1982 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 23, 1982 | - | |
| Jun 24, 1980 | Sep 23, 1982 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 23, 1982 | - | |
| Jun 24, 1980 | Sep 23, 1983 | MR | No | Yes | - | 15 pCi/L | - | Archived | Sep 23, 1983 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.