PORT WASHINGTON WATERWORKS
Wisconsin - Community Water System - PWSID: WI2460054
System Information
| PWSID | WI2460054 |
| System Name | PORT WASHINGTON WATERWORKS |
| System Type | Community Water System |
| Water Source | Surface 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 | PORT WASHINGTON |
| ZIP Code | 53074-2217 |
| Address | 100 W GRAND AVENUE |
| Organization | CITY OF PORT WASHINGTON CLERK - SUSAN WESTERBEKE |
| Phone | - |
Population & Service
| Population Served | 12,853 |
| Service Connections | 4,760 |
Drinking Water Violations (42)
This water system has 42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | Dec 31, 2025 | MR | No | No | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MR | No | No | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MR | No | No | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Oct 1, 2025 | Dec 31, 2025 | MR | No | No | - | 0.080 mg/L | - | Archived | Dec 31, 2025 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 0.060 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 0.060 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 0.060 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 0.060 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | No | - | 0.080 mg/L | - | Resolved | Jun 30, 2017 | - | |
| Mar 1, 2002 | - | Other | No | No | - | - | - | Resolved | Feb 22, 2011 | - | |
| Mar 1, 2002 | - | Other | No | No | - | - | - | Resolved | Feb 22, 2011 | - | |
| Mar 1, 2002 | - | Other | No | No | - | - | - | Resolved | Jun 25, 2003 | - | |
| Feb 1, 2002 | Apr 30, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 12, 2002 | - | |
| Jan 1, 2002 | Mar 31, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 12, 2002 | - | |
| Jan 1, 2002 | Mar 31, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 12, 2002 | - | |
| Jan 1, 2002 | Mar 31, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 12, 2002 | - | |
| Jan 1, 2002 | Mar 31, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 31, 2002 | - | |
| Jan 1, 2002 | Mar 31, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 31, 2002 | - | |
| Jan 1, 2002 | Mar 31, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 31, 2002 | - | |
| Jan 1, 2002 | Mar 31, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 31, 2002 | - | |
| Jan 1, 2002 | Mar 31, 2002 | MR | No | Yes | - | TT | - | Resolved | Mar 31, 2002 | - | |
| Aug 1, 2001 | Aug 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2001 | - | |
| May 1, 2001 | May 31, 2001 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2001 | - | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Feb 26, 1996 | - | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Feb 26, 1996 | - | |
| Jan 1, 1996 | Dec 31, 1996 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Feb 26, 1996 | - | |
| Aug 1, 1994 | Aug 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1994 | - | |
| Aug 1, 1994 | Aug 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1994 | - | |
| Aug 1, 1994 | Aug 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1994 | - | |
| Jul 1, 1992 | Dec 31, 1992 | MR | No | No | - | TT | - | Resolved | Dec 31, 1992 | - | |
| Jul 1, 1992 | Dec 31, 1992 | MR | No | No | - | TT | - | Resolved | Dec 31, 1992 | - | |
| Jul 1, 1992 | Jan 19, 1993 | MR | No | No | - | TT | - | Resolved | Jan 19, 1993 | - | |
| Jul 1, 1992 | Jan 19, 1993 | MR | No | No | - | TT | - | Resolved | Jan 19, 1993 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Oct 31, 1991 | - | |
| Oct 1, 1991 | Oct 31, 1991 | MCL | Yes | No | - | 5% of samples | - | Archived | Oct 31, 1991 | - | |
| - | - | - | 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.