WILLIAMS BAY WATERWORKS
Wisconsin - Community Water System - PWSID: WI2650060
System Information
| PWSID | WI2650060 |
| System Name | WILLIAMS BAY WATERWORKS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 28, 1981 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Wisconsin |
| City | WILLIAMS BAY |
| ZIP Code | 53191 |
| Address | PO BOX 580 |
| Organization | WILLIAMS BAY VILLAGE CLERK |
| Phone | - |
Population & Service
| Population Served | 2,601 |
| Service Connections | 963 |
Drinking Water Violations (143)
This water system has 143 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 11, 2025 | - | Other | No | No | - | - | - | Resolved | Dec 29, 2025 | - | |
| Jul 1, 2025 | - | TT | Yes | No | - | TT | - | Resolved | Sep 26, 2025 | - | |
| Jul 1, 2025 | - | TT | Yes | No | - | TT | - | Resolved | Sep 26, 2025 | - | |
| Jul 1, 2025 | - | TT | Yes | No | - | TT | - | Resolved | Sep 26, 2025 | - | |
| Jul 1, 2025 | - | TT | Yes | No | - | TT | - | Resolved | Sep 26, 2025 | - | |
| Jan 1, 2025 | Jun 30, 2025 | MR | No | No | - | TT | - | Archived | Jun 30, 2025 | - | |
| Jan 1, 2025 | Jun 30, 2025 | MR | No | No | - | TT | - | Archived | Jun 30, 2025 | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Jan 1, 2025 | Jun 30, 2025 | MR | No | No | - | TT | - | Archived | Jun 30, 2025 | - | |
| Jan 1, 2025 | Jun 30, 2025 | MR | No | No | - | TT | - | Archived | Jun 30, 2025 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Oct 18, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Oct 18, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Oct 18, 2021 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Oct 18, 2021 | - | |
| Jul 1, 2020 | - | Other | No | No | - | - | - | Resolved | Feb 15, 2021 | - | |
| Jul 1, 2020 | - | Other | No | No | - | - | - | Resolved | Feb 15, 2021 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 8, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 1 mg/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 8, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 8, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 8, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 8, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Nov 8, 2012 | - | |
| Jan 1, 2012 | - | MR | No | No | - | TT | - | Resolved | Feb 7, 2012 | - | |
| Apr 1, 2006 | - | Other | No | No | - | - | - | Resolved | Jun 7, 2007 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | - | 1 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | - | 1 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | - | 1 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | - | 1 mg/L | - | Resolved | Mar 31, 2006 | - | |
| Jan 1, 2006 | Mar 31, 2006 | MR | No | Yes | - | 10 mg/L | - | Resolved | Mar 31, 2006 | - |
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.